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authorLinus Torvalds <torvalds@linux-foundation.org>2019-09-18 21:14:31 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2019-09-18 21:14:31 +0300
commit6cfae0c26b21dce323fe8799b66cf4bc996e3565 (patch)
tree647f80442929de7ed17cc436c546c21c8c2b2aa9 /drivers/misc
parente6874fc29410fabfdbc8c12b467f41a16cbcfd2b (diff)
parent16a0f687cac70301f49d6f99c4115824e6aad42b (diff)
downloadlinux-6cfae0c26b21dce323fe8799b66cf4bc996e3565.tar.xz
Merge tag 'char-misc-5.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull char/misc driver updates from Greg KH: "Here is the big char/misc driver pull request for 5.4-rc1. As has been happening in previous releases, more and more individual driver subsystem trees are ending up in here. Now if that is good or bad I can't tell, but hopefully it makes your life easier as it's more of an aggregation of trees together to one merge point for you. Anyway, lots of stuff in here: - habanalabs driver updates - thunderbolt driver updates - misc driver updates - coresight and intel_th hwtracing driver updates - fpga driver updates - extcon driver updates - some dma driver updates - char driver updates - android binder driver updates - nvmem driver updates - phy driver updates - parport driver fixes - pcmcia driver fix - uio driver updates - w1 driver updates - configfs fixes - other assorted driver updates All of these have been in linux-next for a long time with no reported issues" * tag 'char-misc-5.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (200 commits) misc: mic: Use PTR_ERR_OR_ZERO rather than its implementation habanalabs: correctly cast variable to __le32 habanalabs: show correct id in error print habanalabs: stop using the acronym KMD habanalabs: display card name as sensors header habanalabs: add uapi to retrieve aggregate H/W events habanalabs: add uapi to retrieve device utilization habanalabs: Make the Coresight timestamp perpetual habanalabs: explicitly set the queue-id enumerated numbers habanalabs: print to kernel log when reset is finished habanalabs: replace __le32_to_cpu with le32_to_cpu habanalabs: replace __cpu_to_le32/64 with cpu_to_le32/64 habanalabs: Handle HW_IP_INFO if device disabled or in reset habanalabs: Expose devices after initialization is done habanalabs: improve security in Debug IOCTL habanalabs: use default structure for user input in Debug IOCTL habanalabs: Add descriptive name to PSOC app status register habanalabs: Add descriptive names to PSOC scratch-pad registers habanalabs: create two char devices per ASIC habanalabs: change device_setup_cdev() to be more generic ...
Diffstat (limited to 'drivers/misc')
-rw-r--r--drivers/misc/Kconfig9
-rw-r--r--drivers/misc/Makefile1
-rw-r--r--drivers/misc/cardreader/alcor_pci.c6
-rw-r--r--drivers/misc/eeprom/Kconfig5
-rw-r--r--drivers/misc/eeprom/ee1004.c6
-rw-r--r--drivers/misc/eeprom/max6875.c6
-rw-r--r--drivers/misc/fastrpc.c79
-rw-r--r--drivers/misc/habanalabs/asid.c2
-rw-r--r--drivers/misc/habanalabs/command_buffer.c3
-rw-r--r--drivers/misc/habanalabs/command_submission.c27
-rw-r--r--drivers/misc/habanalabs/context.c40
-rw-r--r--drivers/misc/habanalabs/debugfs.c16
-rw-r--r--drivers/misc/habanalabs/device.c488
-rw-r--r--drivers/misc/habanalabs/goya/goya.c95
-rw-r--r--drivers/misc/habanalabs/goya/goyaP.h19
-rw-r--r--drivers/misc/habanalabs/goya/goya_coresight.c89
-rw-r--r--drivers/misc/habanalabs/goya/goya_hwmgr.c109
-rw-r--r--drivers/misc/habanalabs/habanalabs.h129
-rw-r--r--drivers/misc/habanalabs/habanalabs_drv.c171
-rw-r--r--drivers/misc/habanalabs/habanalabs_ioctl.c180
-rw-r--r--drivers/misc/habanalabs/hw_queue.c18
-rw-r--r--drivers/misc/habanalabs/hwmon.c24
-rw-r--r--drivers/misc/habanalabs/include/armcp_if.h85
-rw-r--r--drivers/misc/habanalabs/include/goya/goya.h2
-rw-r--r--drivers/misc/habanalabs/include/goya/goya_reg_map.h34
-rw-r--r--drivers/misc/habanalabs/irq.c4
-rw-r--r--drivers/misc/habanalabs/sysfs.c126
-rw-r--r--drivers/misc/lkdtm/Makefile1
-rw-r--r--drivers/misc/lkdtm/bugs.c7
-rw-r--r--drivers/misc/lkdtm/cfi.c42
-rw-r--r--drivers/misc/lkdtm/core.c2
-rw-r--r--drivers/misc/lkdtm/lkdtm.h4
-rw-r--r--drivers/misc/mei/pci-me.c19
-rw-r--r--drivers/misc/mei/pci-txe.c19
-rw-r--r--drivers/misc/mic/card/mic_x100.c28
-rw-r--r--drivers/misc/mic/scif/scif_epd.h5
-rw-r--r--drivers/misc/sgi-xp/xpc_uv.c4
-rw-r--r--drivers/misc/spear13xx_pcie_gadget.c797
-rw-r--r--drivers/misc/xilinx_sdfec.c1214
39 files changed, 2440 insertions, 1475 deletions
diff --git a/drivers/misc/Kconfig b/drivers/misc/Kconfig
index 45b61b8d8442..c55b63750757 100644
--- a/drivers/misc/Kconfig
+++ b/drivers/misc/Kconfig
@@ -362,15 +362,6 @@ config DS1682
This driver can also be built as a module. If so, the module
will be called ds1682.
-config SPEAR13XX_PCIE_GADGET
- bool "PCIe gadget support for SPEAr13XX platform"
- depends on ARCH_SPEAR13XX && BROKEN
- help
- This option enables gadget support for PCIe controller. If
- board file defines any controller as PCIe endpoint then a sysfs
- entry will be created for that controller. User can use these
- sysfs node to configure PCIe EP as per his requirements.
-
config VMWARE_BALLOON
tristate "VMware Balloon Driver"
depends on VMWARE_VMCI && X86 && HYPERVISOR_GUEST
diff --git a/drivers/misc/Makefile b/drivers/misc/Makefile
index 8dae0a976200..c1860d35dc7e 100644
--- a/drivers/misc/Makefile
+++ b/drivers/misc/Makefile
@@ -36,7 +36,6 @@ obj-$(CONFIG_C2PORT) += c2port/
obj-$(CONFIG_HMC6352) += hmc6352.o
obj-y += eeprom/
obj-y += cb710/
-obj-$(CONFIG_SPEAR13XX_PCIE_GADGET) += spear13xx_pcie_gadget.o
obj-$(CONFIG_VMWARE_BALLOON) += vmw_balloon.o
obj-$(CONFIG_PCH_PHUB) += pch_phub.o
obj-y += ti-st/
diff --git a/drivers/misc/cardreader/alcor_pci.c b/drivers/misc/cardreader/alcor_pci.c
index bcb10fa4bc3a..259fe1dfec03 100644
--- a/drivers/misc/cardreader/alcor_pci.c
+++ b/drivers/misc/cardreader/alcor_pci.c
@@ -334,8 +334,7 @@ static void alcor_pci_remove(struct pci_dev *pdev)
#ifdef CONFIG_PM_SLEEP
static int alcor_suspend(struct device *dev)
{
- struct pci_dev *pdev = to_pci_dev(dev);
- struct alcor_pci_priv *priv = pci_get_drvdata(pdev);
+ struct alcor_pci_priv *priv = dev_get_drvdata(dev);
alcor_pci_aspm_ctrl(priv, 1);
return 0;
@@ -344,8 +343,7 @@ static int alcor_suspend(struct device *dev)
static int alcor_resume(struct device *dev)
{
- struct pci_dev *pdev = to_pci_dev(dev);
- struct alcor_pci_priv *priv = pci_get_drvdata(pdev);
+ struct alcor_pci_priv *priv = dev_get_drvdata(dev);
alcor_pci_aspm_ctrl(priv, 0);
return 0;
diff --git a/drivers/misc/eeprom/Kconfig b/drivers/misc/eeprom/Kconfig
index f2abe27010ef..0f791bfdc1f5 100644
--- a/drivers/misc/eeprom/Kconfig
+++ b/drivers/misc/eeprom/Kconfig
@@ -45,13 +45,16 @@ config EEPROM_AT25
will be called at25.
config EEPROM_LEGACY
- tristate "Old I2C EEPROM reader"
+ tristate "Old I2C EEPROM reader (DEPRECATED)"
depends on I2C && SYSFS
help
If you say yes here you get read-only access to the EEPROM data
available on modern memory DIMMs and Sony Vaio laptops via I2C. Such
EEPROMs could theoretically be available on other devices as well.
+ This driver is deprecated and will be removed soon, please use the
+ better at24 driver instead.
+
This driver can also be built as a module. If so, the module
will be called eeprom.
diff --git a/drivers/misc/eeprom/ee1004.c b/drivers/misc/eeprom/ee1004.c
index 6f00c33cfe22..b081c67416d7 100644
--- a/drivers/misc/eeprom/ee1004.c
+++ b/drivers/misc/eeprom/ee1004.c
@@ -195,13 +195,13 @@ static int ee1004_probe(struct i2c_client *client,
mutex_lock(&ee1004_bus_lock);
if (++ee1004_dev_count == 1) {
for (cnr = 0; cnr < 2; cnr++) {
- ee1004_set_page[cnr] = i2c_new_dummy(client->adapter,
+ ee1004_set_page[cnr] = i2c_new_dummy_device(client->adapter,
EE1004_ADDR_SET_PAGE + cnr);
- if (!ee1004_set_page[cnr]) {
+ if (IS_ERR(ee1004_set_page[cnr])) {
dev_err(&client->dev,
"address 0x%02x unavailable\n",
EE1004_ADDR_SET_PAGE + cnr);
- err = -EADDRINUSE;
+ err = PTR_ERR(ee1004_set_page[cnr]);
goto err_clients;
}
}
diff --git a/drivers/misc/eeprom/max6875.c b/drivers/misc/eeprom/max6875.c
index 4d0cb90f4aeb..9da81f6d4a1c 100644
--- a/drivers/misc/eeprom/max6875.c
+++ b/drivers/misc/eeprom/max6875.c
@@ -150,9 +150,9 @@ static int max6875_probe(struct i2c_client *client,
return -ENOMEM;
/* A fake client is created on the odd address */
- data->fake_client = i2c_new_dummy(client->adapter, client->addr + 1);
- if (!data->fake_client) {
- err = -ENOMEM;
+ data->fake_client = i2c_new_dummy_device(client->adapter, client->addr + 1);
+ if (IS_ERR(data->fake_client)) {
+ err = PTR_ERR(data->fake_client);
goto exit_kfree;
}
diff --git a/drivers/misc/fastrpc.c b/drivers/misc/fastrpc.c
index 98603e235cf0..47ae84afac2e 100644
--- a/drivers/misc/fastrpc.c
+++ b/drivers/misc/fastrpc.c
@@ -33,7 +33,6 @@
#define FASTRPC_INIT_HANDLE 1
#define FASTRPC_CTXID_MASK (0xFF0)
#define INIT_FILELEN_MAX (64 * 1024 * 1024)
-#define INIT_MEMLEN_MAX (8 * 1024 * 1024)
#define FASTRPC_DEVICE_NAME "fastrpc"
/* Retrives number of input buffers from the scalars parameter */
@@ -186,6 +185,7 @@ struct fastrpc_channel_ctx {
struct idr ctx_idr;
struct list_head users;
struct miscdevice miscdev;
+ struct kref refcount;
};
struct fastrpc_user {
@@ -279,8 +279,11 @@ static int fastrpc_buf_alloc(struct fastrpc_user *fl, struct device *dev,
buf->virt = dma_alloc_coherent(dev, buf->size, (dma_addr_t *)&buf->phys,
GFP_KERNEL);
- if (!buf->virt)
+ if (!buf->virt) {
+ mutex_destroy(&buf->lock);
+ kfree(buf);
return -ENOMEM;
+ }
if (fl->sctx && fl->sctx->sid)
buf->phys += ((u64)fl->sctx->sid << 32);
@@ -290,6 +293,25 @@ static int fastrpc_buf_alloc(struct fastrpc_user *fl, struct device *dev,
return 0;
}
+static void fastrpc_channel_ctx_free(struct kref *ref)
+{
+ struct fastrpc_channel_ctx *cctx;
+
+ cctx = container_of(ref, struct fastrpc_channel_ctx, refcount);
+
+ kfree(cctx);
+}
+
+static void fastrpc_channel_ctx_get(struct fastrpc_channel_ctx *cctx)
+{
+ kref_get(&cctx->refcount);
+}
+
+static void fastrpc_channel_ctx_put(struct fastrpc_channel_ctx *cctx)
+{
+ kref_put(&cctx->refcount, fastrpc_channel_ctx_free);
+}
+
static void fastrpc_context_free(struct kref *ref)
{
struct fastrpc_invoke_ctx *ctx;
@@ -313,6 +335,8 @@ static void fastrpc_context_free(struct kref *ref)
kfree(ctx->maps);
kfree(ctx->olaps);
kfree(ctx);
+
+ fastrpc_channel_ctx_put(cctx);
}
static void fastrpc_context_get(struct fastrpc_invoke_ctx *ctx)
@@ -419,6 +443,9 @@ static struct fastrpc_invoke_ctx *fastrpc_context_alloc(
fastrpc_get_buff_overlaps(ctx);
}
+ /* Released in fastrpc_context_put() */
+ fastrpc_channel_ctx_get(cctx);
+
ctx->sc = sc;
ctx->retval = -1;
ctx->pid = current->pid;
@@ -448,6 +475,7 @@ err_idr:
spin_lock(&user->lock);
list_del(&ctx->node);
spin_unlock(&user->lock);
+ fastrpc_channel_ctx_put(cctx);
kfree(ctx->maps);
kfree(ctx->olaps);
kfree(ctx);
@@ -522,6 +550,7 @@ static void fastrpc_dma_buf_detatch(struct dma_buf *dmabuf,
mutex_lock(&buffer->lock);
list_del(&a->node);
mutex_unlock(&buffer->lock);
+ sg_free_table(&a->sgt);
kfree(a);
}
@@ -884,6 +913,9 @@ static int fastrpc_internal_invoke(struct fastrpc_user *fl, u32 kernel,
if (!fl->sctx)
return -EINVAL;
+ if (!fl->cctx->rpdev)
+ return -EPIPE;
+
ctx = fastrpc_context_alloc(fl, kernel, sc, args);
if (IS_ERR(ctx))
return PTR_ERR(ctx);
@@ -1120,6 +1152,7 @@ static int fastrpc_device_release(struct inode *inode, struct file *file)
}
fastrpc_session_free(cctx, fl->sctx);
+ fastrpc_channel_ctx_put(cctx);
mutex_destroy(&fl->mutex);
kfree(fl);
@@ -1138,6 +1171,9 @@ static int fastrpc_device_open(struct inode *inode, struct file *filp)
if (!fl)
return -ENOMEM;
+ /* Released in fastrpc_device_release() */
+ fastrpc_channel_ctx_get(cctx);
+
filp->private_data = fl;
spin_lock_init(&fl->lock);
mutex_init(&fl->mutex);
@@ -1163,26 +1199,6 @@ static int fastrpc_device_open(struct inode *inode, struct file *filp)
return 0;
}
-static int fastrpc_dmabuf_free(struct fastrpc_user *fl, char __user *argp)
-{
- struct dma_buf *buf;
- int info;
-
- if (copy_from_user(&info, argp, sizeof(info)))
- return -EFAULT;
-
- buf = dma_buf_get(info);
- if (IS_ERR_OR_NULL(buf))
- return -EINVAL;
- /*
- * one for the last get and other for the ALLOC_DMA_BUFF ioctl
- */
- dma_buf_put(buf);
- dma_buf_put(buf);
-
- return 0;
-}
-
static int fastrpc_dmabuf_alloc(struct fastrpc_user *fl, char __user *argp)
{
struct fastrpc_alloc_dma_buf bp;
@@ -1218,8 +1234,6 @@ static int fastrpc_dmabuf_alloc(struct fastrpc_user *fl, char __user *argp)
return -EFAULT;
}
- get_dma_buf(buf->dmabuf);
-
return 0;
}
@@ -1287,9 +1301,6 @@ static long fastrpc_device_ioctl(struct file *file, unsigned int cmd,
case FASTRPC_IOCTL_INIT_CREATE:
err = fastrpc_init_create_process(fl, argp);
break;
- case FASTRPC_IOCTL_FREE_DMA_BUFF:
- err = fastrpc_dmabuf_free(fl, argp);
- break;
case FASTRPC_IOCTL_ALLOC_DMA_BUFF:
err = fastrpc_dmabuf_alloc(fl, argp);
break;
@@ -1395,10 +1406,6 @@ static int fastrpc_rpmsg_probe(struct rpmsg_device *rpdev)
int i, err, domain_id = -1;
const char *domain;
- data = devm_kzalloc(rdev, sizeof(*data), GFP_KERNEL);
- if (!data)
- return -ENOMEM;
-
err = of_property_read_string(rdev->of_node, "label", &domain);
if (err) {
dev_info(rdev, "FastRPC Domain not specified in DT\n");
@@ -1417,6 +1424,10 @@ static int fastrpc_rpmsg_probe(struct rpmsg_device *rpdev)
return -EINVAL;
}
+ data = kzalloc(sizeof(*data), GFP_KERNEL);
+ if (!data)
+ return -ENOMEM;
+
data->miscdev.minor = MISC_DYNAMIC_MINOR;
data->miscdev.name = kasprintf(GFP_KERNEL, "fastrpc-%s",
domains[domain_id]);
@@ -1425,6 +1436,8 @@ static int fastrpc_rpmsg_probe(struct rpmsg_device *rpdev)
if (err)
return err;
+ kref_init(&data->refcount);
+
dev_set_drvdata(&rpdev->dev, data);
dma_set_mask_and_coherent(rdev, DMA_BIT_MASK(32));
INIT_LIST_HEAD(&data->users);
@@ -1459,7 +1472,9 @@ static void fastrpc_rpmsg_remove(struct rpmsg_device *rpdev)
misc_deregister(&cctx->miscdev);
of_platform_depopulate(&rpdev->dev);
- kfree(cctx);
+
+ cctx->rpdev = NULL;
+ fastrpc_channel_ctx_put(cctx);
}
static int fastrpc_rpmsg_callback(struct rpmsg_device *rpdev, void *data,
diff --git a/drivers/misc/habanalabs/asid.c b/drivers/misc/habanalabs/asid.c
index 2c01461701a3..a2fdf31cf27c 100644
--- a/drivers/misc/habanalabs/asid.c
+++ b/drivers/misc/habanalabs/asid.c
@@ -18,7 +18,7 @@ int hl_asid_init(struct hl_device *hdev)
mutex_init(&hdev->asid_mutex);
- /* ASID 0 is reserved for KMD and device CPU */
+ /* ASID 0 is reserved for the kernel driver and device CPU */
set_bit(0, hdev->asid_bitmap);
return 0;
diff --git a/drivers/misc/habanalabs/command_buffer.c b/drivers/misc/habanalabs/command_buffer.c
index e495f44064fa..53fddbd8e693 100644
--- a/drivers/misc/habanalabs/command_buffer.c
+++ b/drivers/misc/habanalabs/command_buffer.c
@@ -397,7 +397,8 @@ struct hl_cb *hl_cb_kernel_create(struct hl_device *hdev, u32 cb_size)
rc = hl_cb_create(hdev, &hdev->kernel_cb_mgr, cb_size, &cb_handle,
HL_KERNEL_ASID_ID);
if (rc) {
- dev_err(hdev->dev, "Failed to allocate CB for KMD %d\n", rc);
+ dev_err(hdev->dev,
+ "Failed to allocate CB for the kernel driver %d\n", rc);
return NULL;
}
diff --git a/drivers/misc/habanalabs/command_submission.c b/drivers/misc/habanalabs/command_submission.c
index f00d1c32f6d6..a9ac045dcfde 100644
--- a/drivers/misc/habanalabs/command_submission.c
+++ b/drivers/misc/habanalabs/command_submission.c
@@ -178,11 +178,23 @@ static void cs_do_release(struct kref *ref)
/* We also need to update CI for internal queues */
if (cs->submitted) {
- int cs_cnt = atomic_dec_return(&hdev->cs_active_cnt);
+ hdev->asic_funcs->hw_queues_lock(hdev);
- WARN_ONCE((cs_cnt < 0),
- "hl%d: error in CS active cnt %d\n",
- hdev->id, cs_cnt);
+ hdev->cs_active_cnt--;
+ if (!hdev->cs_active_cnt) {
+ struct hl_device_idle_busy_ts *ts;
+
+ ts = &hdev->idle_busy_ts_arr[hdev->idle_busy_ts_idx++];
+ ts->busy_to_idle_ts = ktime_get();
+
+ if (hdev->idle_busy_ts_idx == HL_IDLE_BUSY_TS_ARR_SIZE)
+ hdev->idle_busy_ts_idx = 0;
+ } else if (hdev->cs_active_cnt < 0) {
+ dev_crit(hdev->dev, "CS active cnt %d is negative\n",
+ hdev->cs_active_cnt);
+ }
+
+ hdev->asic_funcs->hw_queues_unlock(hdev);
hl_int_hw_queue_update_ci(cs);
@@ -305,6 +317,8 @@ static int allocate_cs(struct hl_device *hdev, struct hl_ctx *ctx,
other = ctx->cs_pending[fence->cs_seq & (HL_MAX_PENDING_CS - 1)];
if ((other) && (!dma_fence_is_signaled(other))) {
spin_unlock(&ctx->cs_lock);
+ dev_dbg(hdev->dev,
+ "Rejecting CS because of too many in-flights CS\n");
rc = -EAGAIN;
goto free_fence;
}
@@ -395,8 +409,9 @@ static struct hl_cb *validate_queue_index(struct hl_device *hdev,
return NULL;
}
- if (hw_queue_prop->kmd_only) {
- dev_err(hdev->dev, "Queue index %d is restricted for KMD\n",
+ if (hw_queue_prop->driver_only) {
+ dev_err(hdev->dev,
+ "Queue index %d is restricted for the kernel driver\n",
chunk->queue_index);
return NULL;
} else if (hw_queue_prop->type == QUEUE_TYPE_INT) {
diff --git a/drivers/misc/habanalabs/context.c b/drivers/misc/habanalabs/context.c
index 8682590e3f6e..17db7b3dfb4c 100644
--- a/drivers/misc/habanalabs/context.c
+++ b/drivers/misc/habanalabs/context.c
@@ -26,12 +26,13 @@ static void hl_ctx_fini(struct hl_ctx *ctx)
dma_fence_put(ctx->cs_pending[i]);
if (ctx->asid != HL_KERNEL_ASID_ID) {
- /*
- * The engines are stopped as there is no executing CS, but the
+ /* The engines are stopped as there is no executing CS, but the
* Coresight might be still working by accessing addresses
* related to the stopped engines. Hence stop it explicitly.
+ * Stop only if this is the compute context, as there can be
+ * only one compute context
*/
- if (hdev->in_debug)
+ if ((hdev->in_debug) && (hdev->compute_ctx == ctx))
hl_device_set_debug_mode(hdev, false);
hl_vm_ctx_fini(ctx);
@@ -67,29 +68,36 @@ int hl_ctx_create(struct hl_device *hdev, struct hl_fpriv *hpriv)
goto out_err;
}
+ mutex_lock(&mgr->ctx_lock);
+ rc = idr_alloc(&mgr->ctx_handles, ctx, 1, 0, GFP_KERNEL);
+ mutex_unlock(&mgr->ctx_lock);
+
+ if (rc < 0) {
+ dev_err(hdev->dev, "Failed to allocate IDR for a new CTX\n");
+ goto free_ctx;
+ }
+
+ ctx->handle = rc;
+
rc = hl_ctx_init(hdev, ctx, false);
if (rc)
- goto free_ctx;
+ goto remove_from_idr;
hl_hpriv_get(hpriv);
ctx->hpriv = hpriv;
- /* TODO: remove for multiple contexts */
+ /* TODO: remove for multiple contexts per process */
hpriv->ctx = ctx;
- hdev->user_ctx = ctx;
- mutex_lock(&mgr->ctx_lock);
- rc = idr_alloc(&mgr->ctx_handles, ctx, 1, 0, GFP_KERNEL);
- mutex_unlock(&mgr->ctx_lock);
-
- if (rc < 0) {
- dev_err(hdev->dev, "Failed to allocate IDR for a new CTX\n");
- hl_ctx_free(hdev, ctx);
- goto out_err;
- }
+ /* TODO: remove the following line for multiple process support */
+ hdev->compute_ctx = ctx;
return 0;
+remove_from_idr:
+ mutex_lock(&mgr->ctx_lock);
+ idr_remove(&mgr->ctx_handles, ctx->handle);
+ mutex_unlock(&mgr->ctx_lock);
free_ctx:
kfree(ctx);
out_err:
@@ -120,7 +128,7 @@ int hl_ctx_init(struct hl_device *hdev, struct hl_ctx *ctx, bool is_kernel_ctx)
ctx->thread_ctx_switch_wait_token = 0;
if (is_kernel_ctx) {
- ctx->asid = HL_KERNEL_ASID_ID; /* KMD gets ASID 0 */
+ ctx->asid = HL_KERNEL_ASID_ID; /* Kernel driver gets ASID 0 */
rc = hl_mmu_ctx_init(ctx);
if (rc) {
dev_err(hdev->dev, "Failed to init mmu ctx module\n");
diff --git a/drivers/misc/habanalabs/debugfs.c b/drivers/misc/habanalabs/debugfs.c
index 18e499c900c7..87f37ac31ccd 100644
--- a/drivers/misc/habanalabs/debugfs.c
+++ b/drivers/misc/habanalabs/debugfs.c
@@ -29,7 +29,7 @@ static int hl_debugfs_i2c_read(struct hl_device *hdev, u8 i2c_bus, u8 i2c_addr,
memset(&pkt, 0, sizeof(pkt));
- pkt.ctl = __cpu_to_le32(ARMCP_PACKET_I2C_RD <<
+ pkt.ctl = cpu_to_le32(ARMCP_PACKET_I2C_RD <<
ARMCP_PKT_CTL_OPCODE_SHIFT);
pkt.i2c_bus = i2c_bus;
pkt.i2c_addr = i2c_addr;
@@ -55,12 +55,12 @@ static int hl_debugfs_i2c_write(struct hl_device *hdev, u8 i2c_bus, u8 i2c_addr,
memset(&pkt, 0, sizeof(pkt));
- pkt.ctl = __cpu_to_le32(ARMCP_PACKET_I2C_WR <<
+ pkt.ctl = cpu_to_le32(ARMCP_PACKET_I2C_WR <<
ARMCP_PKT_CTL_OPCODE_SHIFT);
pkt.i2c_bus = i2c_bus;
pkt.i2c_addr = i2c_addr;
pkt.i2c_reg = i2c_reg;
- pkt.value = __cpu_to_le64(val);
+ pkt.value = cpu_to_le64(val);
rc = hdev->asic_funcs->send_cpu_message(hdev, (u32 *) &pkt, sizeof(pkt),
HL_DEVICE_TIMEOUT_USEC, NULL);
@@ -81,10 +81,10 @@ static void hl_debugfs_led_set(struct hl_device *hdev, u8 led, u8 state)
memset(&pkt, 0, sizeof(pkt));
- pkt.ctl = __cpu_to_le32(ARMCP_PACKET_LED_SET <<
+ pkt.ctl = cpu_to_le32(ARMCP_PACKET_LED_SET <<
ARMCP_PKT_CTL_OPCODE_SHIFT);
- pkt.led_index = __cpu_to_le32(led);
- pkt.value = __cpu_to_le64(state);
+ pkt.led_index = cpu_to_le32(led);
+ pkt.value = cpu_to_le64(state);
rc = hdev->asic_funcs->send_cpu_message(hdev, (u32 *) &pkt, sizeof(pkt),
HL_DEVICE_TIMEOUT_USEC, NULL);
@@ -370,7 +370,7 @@ static int mmu_show(struct seq_file *s, void *data)
if (dev_entry->mmu_asid == HL_KERNEL_ASID_ID)
ctx = hdev->kernel_ctx;
else
- ctx = hdev->user_ctx;
+ ctx = hdev->compute_ctx;
if (!ctx) {
dev_err(hdev->dev, "no ctx available\n");
@@ -533,7 +533,7 @@ out:
static int device_va_to_pa(struct hl_device *hdev, u64 virt_addr,
u64 *phys_addr)
{
- struct hl_ctx *ctx = hdev->user_ctx;
+ struct hl_ctx *ctx = hdev->compute_ctx;
u64 hop_addr, hop_pte_addr, hop_pte;
u64 offset_mask = HOP4_MASK | OFFSET_MASK;
int rc = 0;
diff --git a/drivers/misc/habanalabs/device.c b/drivers/misc/habanalabs/device.c
index 7a8f9d0b71b5..459fee70a597 100644
--- a/drivers/misc/habanalabs/device.c
+++ b/drivers/misc/habanalabs/device.c
@@ -42,10 +42,12 @@ static void hpriv_release(struct kref *ref)
{
struct hl_fpriv *hpriv;
struct hl_device *hdev;
+ struct hl_ctx *ctx;
hpriv = container_of(ref, struct hl_fpriv, refcount);
hdev = hpriv->hdev;
+ ctx = hpriv->ctx;
put_pid(hpriv->taskpid);
@@ -53,13 +55,12 @@ static void hpriv_release(struct kref *ref)
mutex_destroy(&hpriv->restore_phase_mutex);
- kfree(hpriv);
-
- /* Now the FD is really closed */
- atomic_dec(&hdev->fd_open_cnt);
+ mutex_lock(&hdev->fpriv_list_lock);
+ list_del(&hpriv->dev_node);
+ hdev->compute_ctx = NULL;
+ mutex_unlock(&hdev->fpriv_list_lock);
- /* This allows a new user context to open the device */
- hdev->user_ctx = NULL;
+ kfree(hpriv);
}
void hl_hpriv_get(struct hl_fpriv *hpriv)
@@ -94,6 +95,24 @@ static int hl_device_release(struct inode *inode, struct file *filp)
return 0;
}
+static int hl_device_release_ctrl(struct inode *inode, struct file *filp)
+{
+ struct hl_fpriv *hpriv = filp->private_data;
+ struct hl_device *hdev;
+
+ filp->private_data = NULL;
+
+ hdev = hpriv->hdev;
+
+ mutex_lock(&hdev->fpriv_list_lock);
+ list_del(&hpriv->dev_node);
+ mutex_unlock(&hdev->fpriv_list_lock);
+
+ kfree(hpriv);
+
+ return 0;
+}
+
/*
* hl_mmap - mmap function for habanalabs device
*
@@ -124,55 +143,102 @@ static const struct file_operations hl_ops = {
.compat_ioctl = hl_ioctl
};
+static const struct file_operations hl_ctrl_ops = {
+ .owner = THIS_MODULE,
+ .open = hl_device_open_ctrl,
+ .release = hl_device_release_ctrl,
+ .unlocked_ioctl = hl_ioctl_control,
+ .compat_ioctl = hl_ioctl_control
+};
+
+static void device_release_func(struct device *dev)
+{
+ kfree(dev);
+}
+
/*
- * device_setup_cdev - setup cdev and device for habanalabs device
+ * device_init_cdev - Initialize cdev and device for habanalabs device
*
* @hdev: pointer to habanalabs device structure
* @hclass: pointer to the class object of the device
* @minor: minor number of the specific device
- * @fpos : file operations to install for this device
+ * @fpos: file operations to install for this device
+ * @name: name of the device as it will appear in the filesystem
+ * @cdev: pointer to the char device object that will be initialized
+ * @dev: pointer to the device object that will be initialized
*
- * Create a cdev and a Linux device for habanalabs's device. Need to be
- * called at the end of the habanalabs device initialization process,
- * because this function exposes the device to the user
+ * Initialize a cdev and a Linux device for habanalabs's device.
*/
-static int device_setup_cdev(struct hl_device *hdev, struct class *hclass,
- int minor, const struct file_operations *fops)
+static int device_init_cdev(struct hl_device *hdev, struct class *hclass,
+ int minor, const struct file_operations *fops,
+ char *name, struct cdev *cdev,
+ struct device **dev)
{
- int err, devno = MKDEV(hdev->major, minor);
- struct cdev *hdev_cdev = &hdev->cdev;
- char *name;
+ cdev_init(cdev, fops);
+ cdev->owner = THIS_MODULE;
- name = kasprintf(GFP_KERNEL, "hl%d", hdev->id);
- if (!name)
+ *dev = kzalloc(sizeof(**dev), GFP_KERNEL);
+ if (!*dev)
return -ENOMEM;
- cdev_init(hdev_cdev, fops);
- hdev_cdev->owner = THIS_MODULE;
- err = cdev_add(hdev_cdev, devno, 1);
- if (err) {
- pr_err("Failed to add char device %s\n", name);
- goto err_cdev_add;
+ device_initialize(*dev);
+ (*dev)->devt = MKDEV(hdev->major, minor);
+ (*dev)->class = hclass;
+ (*dev)->release = device_release_func;
+ dev_set_drvdata(*dev, hdev);
+ dev_set_name(*dev, "%s", name);
+
+ return 0;
+}
+
+static int device_cdev_sysfs_add(struct hl_device *hdev)
+{
+ int rc;
+
+ rc = cdev_device_add(&hdev->cdev, hdev->dev);
+ if (rc) {
+ dev_err(hdev->dev,
+ "failed to add a char device to the system\n");
+ return rc;
}
- hdev->dev = device_create(hclass, NULL, devno, NULL, "%s", name);
- if (IS_ERR(hdev->dev)) {
- pr_err("Failed to create device %s\n", name);
- err = PTR_ERR(hdev->dev);
- goto err_device_create;
+ rc = cdev_device_add(&hdev->cdev_ctrl, hdev->dev_ctrl);
+ if (rc) {
+ dev_err(hdev->dev,
+ "failed to add a control char device to the system\n");
+ goto delete_cdev_device;
}
- dev_set_drvdata(hdev->dev, hdev);
+ /* hl_sysfs_init() must be done after adding the device to the system */
+ rc = hl_sysfs_init(hdev);
+ if (rc) {
+ dev_err(hdev->dev, "failed to initialize sysfs\n");
+ goto delete_ctrl_cdev_device;
+ }
- kfree(name);
+ hdev->cdev_sysfs_created = true;
return 0;
-err_device_create:
- cdev_del(hdev_cdev);
-err_cdev_add:
- kfree(name);
- return err;
+delete_ctrl_cdev_device:
+ cdev_device_del(&hdev->cdev_ctrl, hdev->dev_ctrl);
+delete_cdev_device:
+ cdev_device_del(&hdev->cdev, hdev->dev);
+ return rc;
+}
+
+static void device_cdev_sysfs_del(struct hl_device *hdev)
+{
+ /* device_release() won't be called so must free devices explicitly */
+ if (!hdev->cdev_sysfs_created) {
+ kfree(hdev->dev_ctrl);
+ kfree(hdev->dev);
+ return;
+ }
+
+ hl_sysfs_fini(hdev);
+ cdev_device_del(&hdev->cdev_ctrl, hdev->dev_ctrl);
+ cdev_device_del(&hdev->cdev, hdev->dev);
}
/*
@@ -227,20 +293,29 @@ static int device_early_init(struct hl_device *hdev)
goto free_eq_wq;
}
+ hdev->idle_busy_ts_arr = kmalloc_array(HL_IDLE_BUSY_TS_ARR_SIZE,
+ sizeof(struct hl_device_idle_busy_ts),
+ (GFP_KERNEL | __GFP_ZERO));
+ if (!hdev->idle_busy_ts_arr) {
+ rc = -ENOMEM;
+ goto free_chip_info;
+ }
+
hl_cb_mgr_init(&hdev->kernel_cb_mgr);
- mutex_init(&hdev->fd_open_cnt_lock);
mutex_init(&hdev->send_cpu_message_lock);
mutex_init(&hdev->debug_lock);
mutex_init(&hdev->mmu_cache_lock);
INIT_LIST_HEAD(&hdev->hw_queues_mirror_list);
spin_lock_init(&hdev->hw_queues_mirror_lock);
+ INIT_LIST_HEAD(&hdev->fpriv_list);
+ mutex_init(&hdev->fpriv_list_lock);
atomic_set(&hdev->in_reset, 0);
- atomic_set(&hdev->fd_open_cnt, 0);
- atomic_set(&hdev->cs_active_cnt, 0);
return 0;
+free_chip_info:
+ kfree(hdev->hl_chip_info);
free_eq_wq:
destroy_workqueue(hdev->eq_wq);
free_cq_wq:
@@ -266,8 +341,11 @@ static void device_early_fini(struct hl_device *hdev)
mutex_destroy(&hdev->debug_lock);
mutex_destroy(&hdev->send_cpu_message_lock);
+ mutex_destroy(&hdev->fpriv_list_lock);
+
hl_cb_mgr_fini(hdev, &hdev->kernel_cb_mgr);
+ kfree(hdev->idle_busy_ts_arr);
kfree(hdev->hl_chip_info);
destroy_workqueue(hdev->eq_wq);
@@ -277,8 +355,6 @@ static void device_early_fini(struct hl_device *hdev)
if (hdev->asic_funcs->early_fini)
hdev->asic_funcs->early_fini(hdev);
-
- mutex_destroy(&hdev->fd_open_cnt_lock);
}
static void set_freq_to_low_job(struct work_struct *work)
@@ -286,9 +362,13 @@ static void set_freq_to_low_job(struct work_struct *work)
struct hl_device *hdev = container_of(work, struct hl_device,
work_freq.work);
- if (atomic_read(&hdev->fd_open_cnt) == 0)
+ mutex_lock(&hdev->fpriv_list_lock);
+
+ if (!hdev->compute_ctx)
hl_device_set_frequency(hdev, PLL_LOW);
+ mutex_unlock(&hdev->fpriv_list_lock);
+
schedule_delayed_work(&hdev->work_freq,
usecs_to_jiffies(HL_PLL_LOW_JOB_FREQ_USEC));
}
@@ -338,7 +418,7 @@ static int device_late_init(struct hl_device *hdev)
hdev->high_pll = hdev->asic_prop.high_pll;
/* force setting to low frequency */
- atomic_set(&hdev->curr_pll_profile, PLL_LOW);
+ hdev->curr_pll_profile = PLL_LOW;
if (hdev->pm_mng_profile == PM_AUTO)
hdev->asic_funcs->set_pll_profile(hdev, PLL_LOW);
@@ -381,44 +461,128 @@ static void device_late_fini(struct hl_device *hdev)
hdev->late_init_done = false;
}
+uint32_t hl_device_utilization(struct hl_device *hdev, uint32_t period_ms)
+{
+ struct hl_device_idle_busy_ts *ts;
+ ktime_t zero_ktime, curr = ktime_get();
+ u32 overlap_cnt = 0, last_index = hdev->idle_busy_ts_idx;
+ s64 period_us, last_start_us, last_end_us, last_busy_time_us,
+ total_busy_time_us = 0, total_busy_time_ms;
+
+ zero_ktime = ktime_set(0, 0);
+ period_us = period_ms * USEC_PER_MSEC;
+ ts = &hdev->idle_busy_ts_arr[last_index];
+
+ /* check case that device is currently in idle */
+ if (!ktime_compare(ts->busy_to_idle_ts, zero_ktime) &&
+ !ktime_compare(ts->idle_to_busy_ts, zero_ktime)) {
+
+ last_index--;
+ /* Handle case idle_busy_ts_idx was 0 */
+ if (last_index > HL_IDLE_BUSY_TS_ARR_SIZE)
+ last_index = HL_IDLE_BUSY_TS_ARR_SIZE - 1;
+
+ ts = &hdev->idle_busy_ts_arr[last_index];
+ }
+
+ while (overlap_cnt < HL_IDLE_BUSY_TS_ARR_SIZE) {
+ /* Check if we are in last sample case. i.e. if the sample
+ * begun before the sampling period. This could be a real
+ * sample or 0 so need to handle both cases
+ */
+ last_start_us = ktime_to_us(
+ ktime_sub(curr, ts->idle_to_busy_ts));
+
+ if (last_start_us > period_us) {
+
+ /* First check two cases:
+ * 1. If the device is currently busy
+ * 2. If the device was idle during the whole sampling
+ * period
+ */
+
+ if (!ktime_compare(ts->busy_to_idle_ts, zero_ktime)) {
+ /* Check if the device is currently busy */
+ if (ktime_compare(ts->idle_to_busy_ts,
+ zero_ktime))
+ return 100;
+
+ /* We either didn't have any activity or we
+ * reached an entry which is 0. Either way,
+ * exit and return what was accumulated so far
+ */
+ break;
+ }
+
+ /* If sample has finished, check it is relevant */
+ last_end_us = ktime_to_us(
+ ktime_sub(curr, ts->busy_to_idle_ts));
+
+ if (last_end_us > period_us)
+ break;
+
+ /* It is relevant so add it but with adjustment */
+ last_busy_time_us = ktime_to_us(
+ ktime_sub(ts->busy_to_idle_ts,
+ ts->idle_to_busy_ts));
+ total_busy_time_us += last_busy_time_us -
+ (last_start_us - period_us);
+ break;
+ }
+
+ /* Check if the sample is finished or still open */
+ if (ktime_compare(ts->busy_to_idle_ts, zero_ktime))
+ last_busy_time_us = ktime_to_us(
+ ktime_sub(ts->busy_to_idle_ts,
+ ts->idle_to_busy_ts));
+ else
+ last_busy_time_us = ktime_to_us(
+ ktime_sub(curr, ts->idle_to_busy_ts));
+
+ total_busy_time_us += last_busy_time_us;
+
+ last_index--;
+ /* Handle case idle_busy_ts_idx was 0 */
+ if (last_index > HL_IDLE_BUSY_TS_ARR_SIZE)
+ last_index = HL_IDLE_BUSY_TS_ARR_SIZE - 1;
+
+ ts = &hdev->idle_busy_ts_arr[last_index];
+
+ overlap_cnt++;
+ }
+
+ total_busy_time_ms = DIV_ROUND_UP_ULL(total_busy_time_us,
+ USEC_PER_MSEC);
+
+ return DIV_ROUND_UP_ULL(total_busy_time_ms * 100, period_ms);
+}
+
/*
* hl_device_set_frequency - set the frequency of the device
*
* @hdev: pointer to habanalabs device structure
* @freq: the new frequency value
*
- * Change the frequency if needed.
- * We allose to set PLL to low only if there is no user process
- * Returns 0 if no change was done, otherwise returns 1;
+ * Change the frequency if needed. This function has no protection against
+ * concurrency, therefore it is assumed that the calling function has protected
+ * itself against the case of calling this function from multiple threads with
+ * different values
+ *
+ * Returns 0 if no change was done, otherwise returns 1
*/
int hl_device_set_frequency(struct hl_device *hdev, enum hl_pll_frequency freq)
{
- enum hl_pll_frequency old_freq =
- (freq == PLL_HIGH) ? PLL_LOW : PLL_HIGH;
- int ret;
-
- if (hdev->pm_mng_profile == PM_MANUAL)
- return 0;
-
- ret = atomic_cmpxchg(&hdev->curr_pll_profile, old_freq, freq);
- if (ret == freq)
+ if ((hdev->pm_mng_profile == PM_MANUAL) ||
+ (hdev->curr_pll_profile == freq))
return 0;
- /*
- * in case we want to lower frequency, check if device is not
- * opened. We must have a check here to workaround race condition with
- * hl_device_open
- */
- if ((freq == PLL_LOW) && (atomic_read(&hdev->fd_open_cnt) > 0)) {
- atomic_set(&hdev->curr_pll_profile, PLL_HIGH);
- return 0;
- }
-
dev_dbg(hdev->dev, "Changing device frequency to %s\n",
freq == PLL_HIGH ? "high" : "low");
hdev->asic_funcs->set_pll_profile(hdev, freq);
+ hdev->curr_pll_profile = freq;
+
return 1;
}
@@ -449,19 +613,8 @@ int hl_device_set_debug_mode(struct hl_device *hdev, bool enable)
goto out;
}
- mutex_lock(&hdev->fd_open_cnt_lock);
-
- if (atomic_read(&hdev->fd_open_cnt) > 1) {
- dev_err(hdev->dev,
- "Failed to enable debug mode. More then a single user is using the device\n");
- rc = -EPERM;
- goto unlock_fd_open_lock;
- }
-
hdev->in_debug = 1;
-unlock_fd_open_lock:
- mutex_unlock(&hdev->fd_open_cnt_lock);
out:
mutex_unlock(&hdev->debug_lock);
@@ -568,6 +721,7 @@ disable_device:
static void device_kill_open_processes(struct hl_device *hdev)
{
u16 pending_total, pending_cnt;
+ struct hl_fpriv *hpriv;
struct task_struct *task = NULL;
if (hdev->pldm)
@@ -575,32 +729,31 @@ static void device_kill_open_processes(struct hl_device *hdev)
else
pending_total = HL_PENDING_RESET_PER_SEC;
- pending_cnt = pending_total;
-
- /* Flush all processes that are inside hl_open */
- mutex_lock(&hdev->fd_open_cnt_lock);
-
- while ((atomic_read(&hdev->fd_open_cnt)) && (pending_cnt)) {
-
- pending_cnt--;
-
- dev_info(hdev->dev,
- "Can't HARD reset, waiting for user to close FD\n");
+ /* Giving time for user to close FD, and for processes that are inside
+ * hl_device_open to finish
+ */
+ if (!list_empty(&hdev->fpriv_list))
ssleep(1);
- }
- if (atomic_read(&hdev->fd_open_cnt)) {
- task = get_pid_task(hdev->user_ctx->hpriv->taskpid,
- PIDTYPE_PID);
+ mutex_lock(&hdev->fpriv_list_lock);
+
+ /* This section must be protected because we are dereferencing
+ * pointers that are freed if the process exits
+ */
+ list_for_each_entry(hpriv, &hdev->fpriv_list, dev_node) {
+ task = get_pid_task(hpriv->taskpid, PIDTYPE_PID);
if (task) {
- dev_info(hdev->dev, "Killing user processes\n");
+ dev_info(hdev->dev, "Killing user process pid=%d\n",
+ task_pid_nr(task));
send_sig(SIGKILL, task, 1);
- msleep(100);
+ usleep_range(1000, 10000);
put_task_struct(task);
}
}
+ mutex_unlock(&hdev->fpriv_list_lock);
+
/* We killed the open users, but because the driver cleans up after the
* user contexts are closed (e.g. mmu mappings), we need to wait again
* to make sure the cleaning phase is finished before continuing with
@@ -609,19 +762,18 @@ static void device_kill_open_processes(struct hl_device *hdev)
pending_cnt = pending_total;
- while ((atomic_read(&hdev->fd_open_cnt)) && (pending_cnt)) {
+ while ((!list_empty(&hdev->fpriv_list)) && (pending_cnt)) {
+ dev_info(hdev->dev,
+ "Waiting for all unmap operations to finish before hard reset\n");
pending_cnt--;
ssleep(1);
}
- if (atomic_read(&hdev->fd_open_cnt))
+ if (!list_empty(&hdev->fpriv_list))
dev_crit(hdev->dev,
"Going to hard reset with open user contexts\n");
-
- mutex_unlock(&hdev->fd_open_cnt_lock);
-
}
static void device_hard_reset_pending(struct work_struct *work)
@@ -630,8 +782,6 @@ static void device_hard_reset_pending(struct work_struct *work)
container_of(work, struct hl_device_reset_work, reset_work);
struct hl_device *hdev = device_reset_work->hdev;
- device_kill_open_processes(hdev);
-
hl_device_reset(hdev, true, true);
kfree(device_reset_work);
@@ -679,13 +829,16 @@ int hl_device_reset(struct hl_device *hdev, bool hard_reset,
/* This also blocks future CS/VM/JOB completion operations */
hdev->disabled = true;
- /*
- * Flush anyone that is inside the critical section of enqueue
+ /* Flush anyone that is inside the critical section of enqueue
* jobs to the H/W
*/
hdev->asic_funcs->hw_queues_lock(hdev);
hdev->asic_funcs->hw_queues_unlock(hdev);
+ /* Flush anyone that is inside device open */
+ mutex_lock(&hdev->fpriv_list_lock);
+ mutex_unlock(&hdev->fpriv_list_lock);
+
dev_err(hdev->dev, "Going to RESET device!\n");
}
@@ -736,6 +889,13 @@ again:
/* Go over all the queues, release all CS and their jobs */
hl_cs_rollback_all(hdev);
+ /* Kill processes here after CS rollback. This is because the process
+ * can't really exit until all its CSs are done, which is what we
+ * do in cs rollback
+ */
+ if (from_hard_reset_thread)
+ device_kill_open_processes(hdev);
+
/* Release kernel context */
if ((hard_reset) && (hl_ctx_put(hdev->kernel_ctx) == 1))
hdev->kernel_ctx = NULL;
@@ -754,12 +914,24 @@ again:
for (i = 0 ; i < hdev->asic_prop.completion_queues_count ; i++)
hl_cq_reset(hdev, &hdev->completion_queue[i]);
+ hdev->idle_busy_ts_idx = 0;
+ hdev->idle_busy_ts_arr[0].busy_to_idle_ts = ktime_set(0, 0);
+ hdev->idle_busy_ts_arr[0].idle_to_busy_ts = ktime_set(0, 0);
+
+ if (hdev->cs_active_cnt)
+ dev_crit(hdev->dev, "CS active cnt %d is not 0 during reset\n",
+ hdev->cs_active_cnt);
+
+ mutex_lock(&hdev->fpriv_list_lock);
+
/* Make sure the context switch phase will run again */
- if (hdev->user_ctx) {
- atomic_set(&hdev->user_ctx->thread_ctx_switch_token, 1);
- hdev->user_ctx->thread_ctx_switch_wait_token = 0;
+ if (hdev->compute_ctx) {
+ atomic_set(&hdev->compute_ctx->thread_ctx_switch_token, 1);
+ hdev->compute_ctx->thread_ctx_switch_wait_token = 0;
}
+ mutex_unlock(&hdev->fpriv_list_lock);
+
/* Finished tear-down, starting to re-initialize */
if (hard_reset) {
@@ -788,7 +960,7 @@ again:
goto out_err;
}
- hdev->user_ctx = NULL;
+ hdev->compute_ctx = NULL;
rc = hl_ctx_init(hdev, hdev->kernel_ctx, true);
if (rc) {
@@ -849,6 +1021,8 @@ again:
else
hdev->soft_reset_cnt++;
+ dev_warn(hdev->dev, "Successfully finished resetting the device\n");
+
return 0;
out_err:
@@ -883,17 +1057,43 @@ out_err:
int hl_device_init(struct hl_device *hdev, struct class *hclass)
{
int i, rc, cq_ready_cnt;
+ char *name;
+ bool add_cdev_sysfs_on_err = false;
- /* Create device */
- rc = device_setup_cdev(hdev, hclass, hdev->id, &hl_ops);
+ name = kasprintf(GFP_KERNEL, "hl%d", hdev->id / 2);
+ if (!name) {
+ rc = -ENOMEM;
+ goto out_disabled;
+ }
+
+ /* Initialize cdev and device structures */
+ rc = device_init_cdev(hdev, hclass, hdev->id, &hl_ops, name,
+ &hdev->cdev, &hdev->dev);
+
+ kfree(name);
if (rc)
goto out_disabled;
+ name = kasprintf(GFP_KERNEL, "hl_controlD%d", hdev->id / 2);
+ if (!name) {
+ rc = -ENOMEM;
+ goto free_dev;
+ }
+
+ /* Initialize cdev and device structures for control device */
+ rc = device_init_cdev(hdev, hclass, hdev->id_control, &hl_ctrl_ops,
+ name, &hdev->cdev_ctrl, &hdev->dev_ctrl);
+
+ kfree(name);
+
+ if (rc)
+ goto free_dev;
+
/* Initialize ASIC function pointers and perform early init */
rc = device_early_init(hdev);
if (rc)
- goto release_device;
+ goto free_dev_ctrl;
/*
* Start calling ASIC initialization. First S/W then H/W and finally
@@ -965,7 +1165,7 @@ int hl_device_init(struct hl_device *hdev, struct class *hclass)
goto mmu_fini;
}
- hdev->user_ctx = NULL;
+ hdev->compute_ctx = NULL;
rc = hl_ctx_init(hdev, hdev->kernel_ctx, true);
if (rc) {
@@ -980,12 +1180,6 @@ int hl_device_init(struct hl_device *hdev, struct class *hclass)
goto release_ctx;
}
- rc = hl_sysfs_init(hdev);
- if (rc) {
- dev_err(hdev->dev, "failed to initialize sysfs\n");
- goto free_cb_pool;
- }
-
hl_debugfs_add_device(hdev);
if (hdev->asic_funcs->get_hw_state(hdev) == HL_DEVICE_HW_STATE_DIRTY) {
@@ -994,6 +1188,12 @@ int hl_device_init(struct hl_device *hdev, struct class *hclass)
hdev->asic_funcs->hw_fini(hdev, true);
}
+ /*
+ * From this point, in case of an error, add char devices and create
+ * sysfs nodes as part of the error flow, to allow debugging.
+ */
+ add_cdev_sysfs_on_err = true;
+
rc = hdev->asic_funcs->hw_init(hdev);
if (rc) {
dev_err(hdev->dev, "failed to initialize the H/W\n");
@@ -1030,9 +1230,24 @@ int hl_device_init(struct hl_device *hdev, struct class *hclass)
}
/*
- * hl_hwmon_init must be called after device_late_init, because only
+ * Expose devices and sysfs nodes to user.
+ * From here there is no need to add char devices and create sysfs nodes
+ * in case of an error.
+ */
+ add_cdev_sysfs_on_err = false;
+ rc = device_cdev_sysfs_add(hdev);
+ if (rc) {
+ dev_err(hdev->dev,
+ "Failed to add char devices and sysfs nodes\n");
+ rc = 0;
+ goto out_disabled;
+ }
+
+ /*
+ * hl_hwmon_init() must be called after device_late_init(), because only
* there we get the information from the device about which
- * hwmon-related sensors the device supports
+ * hwmon-related sensors the device supports.
+ * Furthermore, it must be done after adding the device to the system.
*/
rc = hl_hwmon_init(hdev);
if (rc) {
@@ -1048,8 +1263,6 @@ int hl_device_init(struct hl_device *hdev, struct class *hclass)
return 0;
-free_cb_pool:
- hl_cb_pool_fini(hdev);
release_ctx:
if (hl_ctx_put(hdev->kernel_ctx) != 1)
dev_err(hdev->dev,
@@ -1068,18 +1281,21 @@ sw_fini:
hdev->asic_funcs->sw_fini(hdev);
early_fini:
device_early_fini(hdev);
-release_device:
- device_destroy(hclass, hdev->dev->devt);
- cdev_del(&hdev->cdev);
+free_dev_ctrl:
+ kfree(hdev->dev_ctrl);
+free_dev:
+ kfree(hdev->dev);
out_disabled:
hdev->disabled = true;
+ if (add_cdev_sysfs_on_err)
+ device_cdev_sysfs_add(hdev);
if (hdev->pdev)
dev_err(&hdev->pdev->dev,
"Failed to initialize hl%d. Device is NOT usable !\n",
- hdev->id);
+ hdev->id / 2);
else
pr_err("Failed to initialize hl%d. Device is NOT usable !\n",
- hdev->id);
+ hdev->id / 2);
return rc;
}
@@ -1120,16 +1336,17 @@ void hl_device_fini(struct hl_device *hdev)
/* Mark device as disabled */
hdev->disabled = true;
- /*
- * Flush anyone that is inside the critical section of enqueue
+ /* Flush anyone that is inside the critical section of enqueue
* jobs to the H/W
*/
hdev->asic_funcs->hw_queues_lock(hdev);
hdev->asic_funcs->hw_queues_unlock(hdev);
- hdev->hard_reset_pending = true;
+ /* Flush anyone that is inside device open */
+ mutex_lock(&hdev->fpriv_list_lock);
+ mutex_unlock(&hdev->fpriv_list_lock);
- device_kill_open_processes(hdev);
+ hdev->hard_reset_pending = true;
hl_hwmon_fini(hdev);
@@ -1137,8 +1354,6 @@ void hl_device_fini(struct hl_device *hdev)
hl_debugfs_remove_device(hdev);
- hl_sysfs_fini(hdev);
-
/*
* Halt the engines and disable interrupts so we won't get any more
* completions from H/W and we won't have any accesses from the
@@ -1149,6 +1364,12 @@ void hl_device_fini(struct hl_device *hdev)
/* Go over all the queues, release all CS and their jobs */
hl_cs_rollback_all(hdev);
+ /* Kill processes here after CS rollback. This is because the process
+ * can't really exit until all its CSs are done, which is what we
+ * do in cs rollback
+ */
+ device_kill_open_processes(hdev);
+
hl_cb_pool_fini(hdev);
/* Release kernel context */
@@ -1175,9 +1396,8 @@ void hl_device_fini(struct hl_device *hdev)
device_early_fini(hdev);
- /* Hide device from user */
- device_destroy(hdev->dev->class, hdev->dev->devt);
- cdev_del(&hdev->cdev);
+ /* Hide devices and sysfs nodes from user */
+ device_cdev_sysfs_del(hdev);
pr_info("removed device successfully\n");
}
diff --git a/drivers/misc/habanalabs/goya/goya.c b/drivers/misc/habanalabs/goya/goya.c
index 271c5c8f53b4..6fba14b81f90 100644
--- a/drivers/misc/habanalabs/goya/goya.c
+++ b/drivers/misc/habanalabs/goya/goya.c
@@ -9,6 +9,7 @@
#include "include/hw_ip/mmu/mmu_general.h"
#include "include/hw_ip/mmu/mmu_v1_0.h"
#include "include/goya/asic_reg/goya_masks.h"
+#include "include/goya/goya_reg_map.h"
#include <linux/pci.h>
#include <linux/genalloc.h>
@@ -41,8 +42,8 @@
* PQ, CQ and CP are not secured.
* PQ, CB and the data are on the SRAM/DRAM.
*
- * Since QMAN DMA is secured, KMD is parsing the DMA CB:
- * - KMD checks DMA pointer
+ * Since QMAN DMA is secured, the driver is parsing the DMA CB:
+ * - checks DMA pointer
* - WREG, MSG_PROT are not allowed.
* - MSG_LONG/SHORT are allowed.
*
@@ -55,15 +56,15 @@
* QMAN DMA: PQ, CQ and CP are secured.
* MMU is set to bypass on the Secure props register of the QMAN.
* The reasons we don't enable MMU for PQ, CQ and CP are:
- * - PQ entry is in kernel address space and KMD doesn't map it.
+ * - PQ entry is in kernel address space and the driver doesn't map it.
* - CP writes to MSIX register and to kernel address space (completion
* queue).
*
- * DMA is not secured but because CP is secured, KMD still needs to parse the
- * CB, but doesn't need to check the DMA addresses.
+ * DMA is not secured but because CP is secured, the driver still needs to parse
+ * the CB, but doesn't need to check the DMA addresses.
*
- * For QMAN DMA 0, DMA is also secured because only KMD uses this DMA and KMD
- * doesn't map memory in MMU.
+ * For QMAN DMA 0, DMA is also secured because only the driver uses this DMA and
+ * the driver doesn't map memory in MMU.
*
* QMAN TPC/MME: PQ, CQ and CP aren't secured (no change from MMU disabled mode)
*
@@ -335,18 +336,18 @@ void goya_get_fixed_properties(struct hl_device *hdev)
for (i = 0 ; i < NUMBER_OF_EXT_HW_QUEUES ; i++) {
prop->hw_queues_props[i].type = QUEUE_TYPE_EXT;
- prop->hw_queues_props[i].kmd_only = 0;
+ prop->hw_queues_props[i].driver_only = 0;
}
for (; i < NUMBER_OF_EXT_HW_QUEUES + NUMBER_OF_CPU_HW_QUEUES ; i++) {
prop->hw_queues_props[i].type = QUEUE_TYPE_CPU;
- prop->hw_queues_props[i].kmd_only = 1;
+ prop->hw_queues_props[i].driver_only = 1;
}
for (; i < NUMBER_OF_EXT_HW_QUEUES + NUMBER_OF_CPU_HW_QUEUES +
NUMBER_OF_INT_HW_QUEUES; i++) {
prop->hw_queues_props[i].type = QUEUE_TYPE_INT;
- prop->hw_queues_props[i].kmd_only = 0;
+ prop->hw_queues_props[i].driver_only = 0;
}
for (; i < HL_MAX_QUEUES; i++)
@@ -1006,36 +1007,34 @@ int goya_init_cpu_queues(struct hl_device *hdev)
eq = &hdev->event_queue;
- WREG32(mmPSOC_GLOBAL_CONF_SCRATCHPAD_0,
- lower_32_bits(cpu_pq->bus_address));
- WREG32(mmPSOC_GLOBAL_CONF_SCRATCHPAD_1,
- upper_32_bits(cpu_pq->bus_address));
+ WREG32(mmCPU_PQ_BASE_ADDR_LOW, lower_32_bits(cpu_pq->bus_address));
+ WREG32(mmCPU_PQ_BASE_ADDR_HIGH, upper_32_bits(cpu_pq->bus_address));
- WREG32(mmPSOC_GLOBAL_CONF_SCRATCHPAD_2, lower_32_bits(eq->bus_address));
- WREG32(mmPSOC_GLOBAL_CONF_SCRATCHPAD_3, upper_32_bits(eq->bus_address));
+ WREG32(mmCPU_EQ_BASE_ADDR_LOW, lower_32_bits(eq->bus_address));
+ WREG32(mmCPU_EQ_BASE_ADDR_HIGH, upper_32_bits(eq->bus_address));
- WREG32(mmPSOC_GLOBAL_CONF_SCRATCHPAD_8,
+ WREG32(mmCPU_CQ_BASE_ADDR_LOW,
lower_32_bits(VA_CPU_ACCESSIBLE_MEM_ADDR));
- WREG32(mmPSOC_GLOBAL_CONF_SCRATCHPAD_9,
+ WREG32(mmCPU_CQ_BASE_ADDR_HIGH,
upper_32_bits(VA_CPU_ACCESSIBLE_MEM_ADDR));
- WREG32(mmPSOC_GLOBAL_CONF_SCRATCHPAD_5, HL_QUEUE_SIZE_IN_BYTES);
- WREG32(mmPSOC_GLOBAL_CONF_SCRATCHPAD_4, HL_EQ_SIZE_IN_BYTES);
- WREG32(mmPSOC_GLOBAL_CONF_SCRATCHPAD_10, HL_CPU_ACCESSIBLE_MEM_SIZE);
+ WREG32(mmCPU_PQ_LENGTH, HL_QUEUE_SIZE_IN_BYTES);
+ WREG32(mmCPU_EQ_LENGTH, HL_EQ_SIZE_IN_BYTES);
+ WREG32(mmCPU_CQ_LENGTH, HL_CPU_ACCESSIBLE_MEM_SIZE);
/* Used for EQ CI */
- WREG32(mmPSOC_GLOBAL_CONF_SCRATCHPAD_6, 0);
+ WREG32(mmCPU_EQ_CI, 0);
WREG32(mmCPU_IF_PF_PQ_PI, 0);
- WREG32(mmPSOC_GLOBAL_CONF_SCRATCHPAD_7, PQ_INIT_STATUS_READY_FOR_CP);
+ WREG32(mmCPU_PQ_INIT_STATUS, PQ_INIT_STATUS_READY_FOR_CP);
WREG32(mmGIC_DISTRIBUTOR__5_GICD_SETSPI_NSR,
GOYA_ASYNC_EVENT_ID_PI_UPDATE);
err = hl_poll_timeout(
hdev,
- mmPSOC_GLOBAL_CONF_SCRATCHPAD_7,
+ mmCPU_PQ_INIT_STATUS,
status,
(status == PQ_INIT_STATUS_READY_FOR_HOST),
1000,
@@ -2063,6 +2062,25 @@ static void goya_disable_msix(struct hl_device *hdev)
goya->hw_cap_initialized &= ~HW_CAP_MSIX;
}
+static void goya_enable_timestamp(struct hl_device *hdev)
+{
+ /* Disable the timestamp counter */
+ WREG32(mmPSOC_TIMESTAMP_BASE - CFG_BASE, 0);
+
+ /* Zero the lower/upper parts of the 64-bit counter */
+ WREG32(mmPSOC_TIMESTAMP_BASE - CFG_BASE + 0xC, 0);
+ WREG32(mmPSOC_TIMESTAMP_BASE - CFG_BASE + 0x8, 0);
+
+ /* Enable the counter */
+ WREG32(mmPSOC_TIMESTAMP_BASE - CFG_BASE, 1);
+}
+
+static void goya_disable_timestamp(struct hl_device *hdev)
+{
+ /* Disable the timestamp counter */
+ WREG32(mmPSOC_TIMESTAMP_BASE - CFG_BASE, 0);
+}
+
static void goya_halt_engines(struct hl_device *hdev, bool hard_reset)
{
u32 wait_timeout_ms, cpu_timeout_ms;
@@ -2103,6 +2121,8 @@ static void goya_halt_engines(struct hl_device *hdev, bool hard_reset)
goya_disable_external_queues(hdev);
goya_disable_internal_queues(hdev);
+ goya_disable_timestamp(hdev);
+
if (hard_reset) {
goya_disable_msix(hdev);
goya_mmu_remove_device_cpu_mappings(hdev);
@@ -2205,12 +2225,12 @@ static void goya_read_device_fw_version(struct hl_device *hdev,
switch (fwc) {
case FW_COMP_UBOOT:
- ver_off = RREG32(mmPSOC_GLOBAL_CONF_SCRATCHPAD_29);
+ ver_off = RREG32(mmUBOOT_VER_OFFSET);
dest = hdev->asic_prop.uboot_ver;
name = "U-Boot";
break;
case FW_COMP_PREBOOT:
- ver_off = RREG32(mmPSOC_GLOBAL_CONF_SCRATCHPAD_28);
+ ver_off = RREG32(mmPREBOOT_VER_OFFSET);
dest = hdev->asic_prop.preboot_ver;
name = "Preboot";
break;
@@ -2469,7 +2489,7 @@ static int goya_hw_init(struct hl_device *hdev)
* we need to reset the chip before doing H/W init. This register is
* cleared by the H/W upon H/W reset
*/
- WREG32(mmPSOC_GLOBAL_CONF_APP_STATUS, HL_DEVICE_HW_STATE_DIRTY);
+ WREG32(mmHW_STATE, HL_DEVICE_HW_STATE_DIRTY);
rc = goya_init_cpu(hdev, GOYA_CPU_TIMEOUT_USEC);
if (rc) {
@@ -2505,6 +2525,8 @@ static int goya_hw_init(struct hl_device *hdev)
goya_init_tpc_qmans(hdev);
+ goya_enable_timestamp(hdev);
+
/* MSI-X must be enabled before CPU queues are initialized */
rc = goya_enable_msix(hdev);
if (rc)
@@ -2831,7 +2853,7 @@ static int goya_send_job_on_qman0(struct hl_device *hdev, struct hl_cs_job *job)
if (!hdev->asic_funcs->is_device_idle(hdev, NULL, NULL)) {
dev_err_ratelimited(hdev->dev,
- "Can't send KMD job on QMAN0 because the device is not idle\n");
+ "Can't send driver job on QMAN0 because the device is not idle\n");
return -EBUSY;
}
@@ -3949,7 +3971,7 @@ void goya_add_end_of_cb_packets(struct hl_device *hdev, u64 kernel_address,
void goya_update_eq_ci(struct hl_device *hdev, u32 val)
{
- WREG32(mmPSOC_GLOBAL_CONF_SCRATCHPAD_6, val);
+ WREG32(mmCPU_EQ_CI, val);
}
void goya_restore_phase_topology(struct hl_device *hdev)
@@ -4447,6 +4469,7 @@ void goya_handle_eqe(struct hl_device *hdev, struct hl_eq_entry *eq_entry)
struct goya_device *goya = hdev->asic_specific;
goya->events_stat[event_type]++;
+ goya->events_stat_aggregate[event_type]++;
switch (event_type) {
case GOYA_ASYNC_EVENT_ID_PCIE_IF:
@@ -4528,12 +4551,16 @@ void goya_handle_eqe(struct hl_device *hdev, struct hl_eq_entry *eq_entry)
}
}
-void *goya_get_events_stat(struct hl_device *hdev, u32 *size)
+void *goya_get_events_stat(struct hl_device *hdev, bool aggregate, u32 *size)
{
struct goya_device *goya = hdev->asic_specific;
- *size = (u32) sizeof(goya->events_stat);
+ if (aggregate) {
+ *size = (u32) sizeof(goya->events_stat_aggregate);
+ return goya->events_stat_aggregate;
+ }
+ *size = (u32) sizeof(goya->events_stat);
return goya->events_stat;
}
@@ -4934,6 +4961,10 @@ int goya_armcp_info_get(struct hl_device *hdev)
prop->dram_end_address = prop->dram_base_address + dram_size;
}
+ if (!strlen(prop->armcp_info.card_name))
+ strncpy(prop->armcp_info.card_name, GOYA_DEFAULT_CARD_NAME,
+ CARD_NAME_MAX_LEN);
+
return 0;
}
@@ -5047,7 +5078,7 @@ static int goya_get_eeprom_data(struct hl_device *hdev, void *data,
static enum hl_device_hw_state goya_get_hw_state(struct hl_device *hdev)
{
- return RREG32(mmPSOC_GLOBAL_CONF_APP_STATUS);
+ return RREG32(mmHW_STATE);
}
static const struct hl_asic_funcs goya_funcs = {
diff --git a/drivers/misc/habanalabs/goya/goyaP.h b/drivers/misc/habanalabs/goya/goyaP.h
index d7f48c9c41cd..89b6574f8e4f 100644
--- a/drivers/misc/habanalabs/goya/goyaP.h
+++ b/drivers/misc/habanalabs/goya/goyaP.h
@@ -55,6 +55,8 @@
#define DRAM_PHYS_DEFAULT_SIZE 0x100000000ull /* 4GB */
+#define GOYA_DEFAULT_CARD_NAME "HL1000"
+
/* DRAM Memory Map */
#define CPU_FW_IMAGE_SIZE 0x10000000 /* 256MB */
@@ -68,19 +70,19 @@
MMU_PAGE_TABLES_SIZE)
#define MMU_CACHE_MNG_ADDR (MMU_DRAM_DEFAULT_PAGE_ADDR + \
MMU_DRAM_DEFAULT_PAGE_SIZE)
-#define DRAM_KMD_END_ADDR (MMU_CACHE_MNG_ADDR + \
+#define DRAM_DRIVER_END_ADDR (MMU_CACHE_MNG_ADDR + \
MMU_CACHE_MNG_SIZE)
#define DRAM_BASE_ADDR_USER 0x20000000
-#if (DRAM_KMD_END_ADDR > DRAM_BASE_ADDR_USER)
-#error "KMD must reserve no more than 512MB"
+#if (DRAM_DRIVER_END_ADDR > DRAM_BASE_ADDR_USER)
+#error "Driver must reserve no more than 512MB"
#endif
/*
- * SRAM Memory Map for KMD
+ * SRAM Memory Map for Driver
*
- * KMD occupies KMD_SRAM_SIZE bytes from the start of SRAM. It is used for
+ * Driver occupies DRIVER_SRAM_SIZE bytes from the start of SRAM. It is used for
* MME/TPC QMANs
*
*/
@@ -106,10 +108,10 @@
#define TPC7_QMAN_BASE_OFFSET (TPC6_QMAN_BASE_OFFSET + \
(TPC_QMAN_LENGTH * QMAN_PQ_ENTRY_SIZE))
-#define SRAM_KMD_RES_OFFSET (TPC7_QMAN_BASE_OFFSET + \
+#define SRAM_DRIVER_RES_OFFSET (TPC7_QMAN_BASE_OFFSET + \
(TPC_QMAN_LENGTH * QMAN_PQ_ENTRY_SIZE))
-#if (SRAM_KMD_RES_OFFSET >= GOYA_KMD_SRAM_RESERVED_SIZE_FROM_START)
+#if (SRAM_DRIVER_RES_OFFSET >= GOYA_KMD_SRAM_RESERVED_SIZE_FROM_START)
#error "MME/TPC QMANs SRAM space exceeds limit"
#endif
@@ -162,6 +164,7 @@ struct goya_device {
u64 ddr_bar_cur_addr;
u32 events_stat[GOYA_ASYNC_EVENT_ID_SIZE];
+ u32 events_stat_aggregate[GOYA_ASYNC_EVENT_ID_SIZE];
u32 hw_cap_initialized;
u8 device_cpu_mmu_mappings_done;
};
@@ -215,7 +218,7 @@ int goya_suspend(struct hl_device *hdev);
int goya_resume(struct hl_device *hdev);
void goya_handle_eqe(struct hl_device *hdev, struct hl_eq_entry *eq_entry);
-void *goya_get_events_stat(struct hl_device *hdev, u32 *size);
+void *goya_get_events_stat(struct hl_device *hdev, bool aggregate, u32 *size);
void goya_add_end_of_cb_packets(struct hl_device *hdev, u64 kernel_address,
u32 len, u64 cq_addr, u32 cq_val, u32 msix_vec);
diff --git a/drivers/misc/habanalabs/goya/goya_coresight.c b/drivers/misc/habanalabs/goya/goya_coresight.c
index d7ec7ad84cc6..b4d406af1bed 100644
--- a/drivers/misc/habanalabs/goya/goya_coresight.c
+++ b/drivers/misc/habanalabs/goya/goya_coresight.c
@@ -15,6 +15,10 @@
#define GOYA_PLDM_CORESIGHT_TIMEOUT_USEC (CORESIGHT_TIMEOUT_USEC * 100)
+#define SPMU_SECTION_SIZE DMA_CH_0_CS_SPMU_MAX_OFFSET
+#define SPMU_EVENT_TYPES_OFFSET 0x400
+#define SPMU_MAX_COUNTERS 6
+
static u64 debug_stm_regs[GOYA_STM_LAST + 1] = {
[GOYA_STM_CPU] = mmCPU_STM_BASE,
[GOYA_STM_DMA_CH_0_CS] = mmDMA_CH_0_CS_STM_BASE,
@@ -226,9 +230,16 @@ static int goya_config_stm(struct hl_device *hdev,
struct hl_debug_params *params)
{
struct hl_debug_params_stm *input;
- u64 base_reg = debug_stm_regs[params->reg_idx] - CFG_BASE;
+ u64 base_reg;
int rc;
+ if (params->reg_idx >= ARRAY_SIZE(debug_stm_regs)) {
+ dev_err(hdev->dev, "Invalid register index in STM\n");
+ return -EINVAL;
+ }
+
+ base_reg = debug_stm_regs[params->reg_idx] - CFG_BASE;
+
WREG32(base_reg + 0xFB0, CORESIGHT_UNLOCK);
if (params->enable) {
@@ -288,10 +299,17 @@ static int goya_config_etf(struct hl_device *hdev,
struct hl_debug_params *params)
{
struct hl_debug_params_etf *input;
- u64 base_reg = debug_etf_regs[params->reg_idx] - CFG_BASE;
+ u64 base_reg;
u32 val;
int rc;
+ if (params->reg_idx >= ARRAY_SIZE(debug_etf_regs)) {
+ dev_err(hdev->dev, "Invalid register index in ETF\n");
+ return -EINVAL;
+ }
+
+ base_reg = debug_etf_regs[params->reg_idx] - CFG_BASE;
+
WREG32(base_reg + 0xFB0, CORESIGHT_UNLOCK);
val = RREG32(base_reg + 0x304);
@@ -445,11 +463,18 @@ static int goya_config_etr(struct hl_device *hdev,
static int goya_config_funnel(struct hl_device *hdev,
struct hl_debug_params *params)
{
- WREG32(debug_funnel_regs[params->reg_idx] - CFG_BASE + 0xFB0,
- CORESIGHT_UNLOCK);
+ u64 base_reg;
+
+ if (params->reg_idx >= ARRAY_SIZE(debug_funnel_regs)) {
+ dev_err(hdev->dev, "Invalid register index in FUNNEL\n");
+ return -EINVAL;
+ }
+
+ base_reg = debug_funnel_regs[params->reg_idx] - CFG_BASE;
+
+ WREG32(base_reg + 0xFB0, CORESIGHT_UNLOCK);
- WREG32(debug_funnel_regs[params->reg_idx] - CFG_BASE,
- params->enable ? 0x33F : 0);
+ WREG32(base_reg, params->enable ? 0x33F : 0);
return 0;
}
@@ -458,9 +483,16 @@ static int goya_config_bmon(struct hl_device *hdev,
struct hl_debug_params *params)
{
struct hl_debug_params_bmon *input;
- u64 base_reg = debug_bmon_regs[params->reg_idx] - CFG_BASE;
+ u64 base_reg;
u32 pcie_base = 0;
+ if (params->reg_idx >= ARRAY_SIZE(debug_bmon_regs)) {
+ dev_err(hdev->dev, "Invalid register index in BMON\n");
+ return -EINVAL;
+ }
+
+ base_reg = debug_bmon_regs[params->reg_idx] - CFG_BASE;
+
WREG32(base_reg + 0x104, 1);
if (params->enable) {
@@ -522,7 +554,7 @@ static int goya_config_bmon(struct hl_device *hdev,
static int goya_config_spmu(struct hl_device *hdev,
struct hl_debug_params *params)
{
- u64 base_reg = debug_spmu_regs[params->reg_idx] - CFG_BASE;
+ u64 base_reg;
struct hl_debug_params_spmu *input = params->input;
u64 *output;
u32 output_arr_len;
@@ -531,6 +563,13 @@ static int goya_config_spmu(struct hl_device *hdev,
u32 cycle_cnt_idx;
int i;
+ if (params->reg_idx >= ARRAY_SIZE(debug_spmu_regs)) {
+ dev_err(hdev->dev, "Invalid register index in SPMU\n");
+ return -EINVAL;
+ }
+
+ base_reg = debug_spmu_regs[params->reg_idx] - CFG_BASE;
+
if (params->enable) {
input = params->input;
@@ -539,7 +578,13 @@ static int goya_config_spmu(struct hl_device *hdev,
if (input->event_types_num < 3) {
dev_err(hdev->dev,
- "not enough values for SPMU enable\n");
+ "not enough event types values for SPMU enable\n");
+ return -EINVAL;
+ }
+
+ if (input->event_types_num > SPMU_MAX_COUNTERS) {
+ dev_err(hdev->dev,
+ "too many event types values for SPMU enable\n");
return -EINVAL;
}
@@ -547,7 +592,8 @@ static int goya_config_spmu(struct hl_device *hdev,
WREG32(base_reg + 0xE04, 0x41013040);
for (i = 0 ; i < input->event_types_num ; i++)
- WREG32(base_reg + 0x400 + i * 4, input->event_types[i]);
+ WREG32(base_reg + SPMU_EVENT_TYPES_OFFSET + i * 4,
+ input->event_types[i]);
WREG32(base_reg + 0xE04, 0x41013041);
WREG32(base_reg + 0xC00, 0x8000003F);
@@ -567,6 +613,12 @@ static int goya_config_spmu(struct hl_device *hdev,
return -EINVAL;
}
+ if (events_num > SPMU_MAX_COUNTERS) {
+ dev_err(hdev->dev,
+ "too many events values for SPMU disable\n");
+ return -EINVAL;
+ }
+
WREG32(base_reg + 0xE04, 0x41013040);
for (i = 0 ; i < events_num ; i++)
@@ -584,24 +636,11 @@ static int goya_config_spmu(struct hl_device *hdev,
return 0;
}
-static int goya_config_timestamp(struct hl_device *hdev,
- struct hl_debug_params *params)
-{
- WREG32(mmPSOC_TIMESTAMP_BASE - CFG_BASE, 0);
- if (params->enable) {
- WREG32(mmPSOC_TIMESTAMP_BASE - CFG_BASE + 0xC, 0);
- WREG32(mmPSOC_TIMESTAMP_BASE - CFG_BASE + 0x8, 0);
- WREG32(mmPSOC_TIMESTAMP_BASE - CFG_BASE, 1);
- }
-
- return 0;
-}
-
int goya_debug_coresight(struct hl_device *hdev, void *data)
{
struct hl_debug_params *params = data;
u32 val;
- int rc;
+ int rc = 0;
switch (params->op) {
case HL_DEBUG_OP_STM:
@@ -623,7 +662,7 @@ int goya_debug_coresight(struct hl_device *hdev, void *data)
rc = goya_config_spmu(hdev, params);
break;
case HL_DEBUG_OP_TIMESTAMP:
- rc = goya_config_timestamp(hdev, params);
+ /* Do nothing as this opcode is deprecated */
break;
default:
diff --git a/drivers/misc/habanalabs/goya/goya_hwmgr.c b/drivers/misc/habanalabs/goya/goya_hwmgr.c
index 088692c852b6..a2a700c3d597 100644
--- a/drivers/misc/habanalabs/goya/goya_hwmgr.c
+++ b/drivers/misc/habanalabs/goya/goya_hwmgr.c
@@ -230,18 +230,127 @@ static ssize_t ic_clk_curr_show(struct device *dev,
return sprintf(buf, "%lu\n", value);
}
+static ssize_t pm_mng_profile_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct hl_device *hdev = dev_get_drvdata(dev);
+
+ if (hl_device_disabled_or_in_reset(hdev))
+ return -ENODEV;
+
+ return sprintf(buf, "%s\n",
+ (hdev->pm_mng_profile == PM_AUTO) ? "auto" :
+ (hdev->pm_mng_profile == PM_MANUAL) ? "manual" :
+ "unknown");
+}
+
+static ssize_t pm_mng_profile_store(struct device *dev,
+ struct device_attribute *attr, const char *buf, size_t count)
+{
+ struct hl_device *hdev = dev_get_drvdata(dev);
+
+ if (hl_device_disabled_or_in_reset(hdev)) {
+ count = -ENODEV;
+ goto out;
+ }
+
+ mutex_lock(&hdev->fpriv_list_lock);
+
+ if (hdev->compute_ctx) {
+ dev_err(hdev->dev,
+ "Can't change PM profile while compute context is opened on the device\n");
+ count = -EPERM;
+ goto unlock_mutex;
+ }
+
+ if (strncmp("auto", buf, strlen("auto")) == 0) {
+ /* Make sure we are in LOW PLL when changing modes */
+ if (hdev->pm_mng_profile == PM_MANUAL) {
+ hdev->curr_pll_profile = PLL_HIGH;
+ hl_device_set_frequency(hdev, PLL_LOW);
+ hdev->pm_mng_profile = PM_AUTO;
+ }
+ } else if (strncmp("manual", buf, strlen("manual")) == 0) {
+ if (hdev->pm_mng_profile == PM_AUTO) {
+ /* Must release the lock because the work thread also
+ * takes this lock. But before we release it, set
+ * the mode to manual so nothing will change if a user
+ * suddenly opens the device
+ */
+ hdev->pm_mng_profile = PM_MANUAL;
+
+ mutex_unlock(&hdev->fpriv_list_lock);
+
+ /* Flush the current work so we can return to the user
+ * knowing that he is the only one changing frequencies
+ */
+ flush_delayed_work(&hdev->work_freq);
+
+ return count;
+ }
+ } else {
+ dev_err(hdev->dev, "value should be auto or manual\n");
+ count = -EINVAL;
+ }
+
+unlock_mutex:
+ mutex_unlock(&hdev->fpriv_list_lock);
+out:
+ return count;
+}
+
+static ssize_t high_pll_show(struct device *dev, struct device_attribute *attr,
+ char *buf)
+{
+ struct hl_device *hdev = dev_get_drvdata(dev);
+
+ if (hl_device_disabled_or_in_reset(hdev))
+ return -ENODEV;
+
+ return sprintf(buf, "%u\n", hdev->high_pll);
+}
+
+static ssize_t high_pll_store(struct device *dev, struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct hl_device *hdev = dev_get_drvdata(dev);
+ long value;
+ int rc;
+
+ if (hl_device_disabled_or_in_reset(hdev)) {
+ count = -ENODEV;
+ goto out;
+ }
+
+ rc = kstrtoul(buf, 0, &value);
+
+ if (rc) {
+ count = -EINVAL;
+ goto out;
+ }
+
+ hdev->high_pll = value;
+
+out:
+ return count;
+}
+
+static DEVICE_ATTR_RW(high_pll);
static DEVICE_ATTR_RW(ic_clk);
static DEVICE_ATTR_RO(ic_clk_curr);
static DEVICE_ATTR_RW(mme_clk);
static DEVICE_ATTR_RO(mme_clk_curr);
+static DEVICE_ATTR_RW(pm_mng_profile);
static DEVICE_ATTR_RW(tpc_clk);
static DEVICE_ATTR_RO(tpc_clk_curr);
static struct attribute *goya_dev_attrs[] = {
+ &dev_attr_high_pll.attr,
&dev_attr_ic_clk.attr,
&dev_attr_ic_clk_curr.attr,
&dev_attr_mme_clk.attr,
&dev_attr_mme_clk_curr.attr,
+ &dev_attr_pm_mng_profile.attr,
&dev_attr_tpc_clk.attr,
&dev_attr_tpc_clk_curr.attr,
NULL,
diff --git a/drivers/misc/habanalabs/habanalabs.h b/drivers/misc/habanalabs/habanalabs.h
index ce83adafcf2d..75862be53c60 100644
--- a/drivers/misc/habanalabs/habanalabs.h
+++ b/drivers/misc/habanalabs/habanalabs.h
@@ -36,6 +36,8 @@
#define HL_PCI_ELBI_TIMEOUT_MSEC 10 /* 10ms */
+#define HL_SIM_MAX_TIMEOUT_US 10000000 /* 10s */
+
#define HL_MAX_QUEUES 128
#define HL_MAX_JOBS_PER_CS 64
@@ -43,6 +45,8 @@
/* MUST BE POWER OF 2 and larger than 1 */
#define HL_MAX_PENDING_CS 64
+#define HL_IDLE_BUSY_TS_ARR_SIZE 4096
+
/* Memory */
#define MEM_HASH_TABLE_BITS 7 /* 1 << 7 buckets */
@@ -92,12 +96,12 @@ enum hl_queue_type {
/**
* struct hw_queue_properties - queue information.
* @type: queue type.
- * @kmd_only: true if only KMD is allowed to send a job to this queue, false
- * otherwise.
+ * @driver_only: true if only the driver is allowed to send a job to this queue,
+ * false otherwise.
*/
struct hw_queue_properties {
enum hl_queue_type type;
- u8 kmd_only;
+ u8 driver_only;
};
/**
@@ -320,7 +324,7 @@ struct hl_cs_job;
#define HL_EQ_LENGTH 64
#define HL_EQ_SIZE_IN_BYTES (HL_EQ_LENGTH * HL_EQ_ENTRY_SIZE)
-/* KMD <-> ArmCP shared memory size */
+/* Host <-> ArmCP shared memory size */
#define HL_CPU_ACCESSIBLE_MEM_SIZE SZ_2M
/**
@@ -401,7 +405,7 @@ struct hl_cs_parser;
/**
* enum hl_pm_mng_profile - power management profile.
- * @PM_AUTO: internal clock is set by KMD.
+ * @PM_AUTO: internal clock is set by the Linux driver.
* @PM_MANUAL: internal clock is set by the user.
* @PM_LAST: last power management type.
*/
@@ -554,7 +558,8 @@ struct hl_asic_funcs {
struct hl_eq_entry *eq_entry);
void (*set_pll_profile)(struct hl_device *hdev,
enum hl_pll_frequency freq);
- void* (*get_events_stat)(struct hl_device *hdev, u32 *size);
+ void* (*get_events_stat)(struct hl_device *hdev, bool aggregate,
+ u32 *size);
u64 (*read_pte)(struct hl_device *hdev, u64 addr);
void (*write_pte)(struct hl_device *hdev, u64 addr, u64 val);
void (*mmu_invalidate_cache)(struct hl_device *hdev, bool is_hard);
@@ -608,7 +613,7 @@ struct hl_va_range {
* descriptor (hl_vm_phys_pg_list or hl_userptr).
* @mmu_phys_hash: holds a mapping from physical address to pgt_info structure.
* @mmu_shadow_hash: holds a mapping from shadow address to pgt_info structure.
- * @hpriv: pointer to the private (KMD) data of the process (fd).
+ * @hpriv: pointer to the private (Kernel Driver) data of the process (fd).
* @hdev: pointer to the device structure.
* @refcount: reference counter for the context. Context is released only when
* this hits 0l. It is incremented on CS and CS_WAIT.
@@ -634,6 +639,7 @@ struct hl_va_range {
* execution phase before the context switch phase
* has finished.
* @asid: context's unique address space ID in the device's MMU.
+ * @handle: context's opaque handle for user
*/
struct hl_ctx {
DECLARE_HASHTABLE(mem_hash, MEM_HASH_TABLE_BITS);
@@ -655,6 +661,7 @@ struct hl_ctx {
atomic_t thread_ctx_switch_token;
u32 thread_ctx_switch_wait_token;
u32 asid;
+ u32 handle;
};
/**
@@ -906,23 +913,27 @@ struct hl_debug_params {
* @hdev: habanalabs device structure.
* @filp: pointer to the given file structure.
* @taskpid: current process ID.
- * @ctx: current executing context.
+ * @ctx: current executing context. TODO: remove for multiple ctx per process
* @ctx_mgr: context manager to handle multiple context for this FD.
* @cb_mgr: command buffer manager to handle multiple buffers for this FD.
* @debugfs_list: list of relevant ASIC debugfs.
+ * @dev_node: node in the device list of file private data
* @refcount: number of related contexts.
* @restore_phase_mutex: lock for context switch and restore phase.
+ * @is_control: true for control device, false otherwise
*/
struct hl_fpriv {
struct hl_device *hdev;
struct file *filp;
struct pid *taskpid;
- struct hl_ctx *ctx; /* TODO: remove for multiple ctx */
+ struct hl_ctx *ctx;
struct hl_ctx_mgr ctx_mgr;
struct hl_cb_mgr cb_mgr;
struct list_head debugfs_list;
+ struct list_head dev_node;
struct kref refcount;
struct mutex restore_phase_mutex;
+ u8 is_control;
};
@@ -1009,7 +1020,7 @@ struct hl_dbg_device_entry {
*/
/* Theoretical limit only. A single host can only contain up to 4 or 8 PCIe
- * x16 cards. In extereme cases, there are hosts that can accommodate 16 cards
+ * x16 cards. In extreme cases, there are hosts that can accommodate 16 cards.
*/
#define HL_MAX_MINORS 256
@@ -1041,14 +1052,18 @@ void hl_wreg(struct hl_device *hdev, u32 reg, u32 val);
WREG32(mm##reg, (RREG32(mm##reg) & ~REG_FIELD_MASK(reg, field)) | \
(val) << REG_FIELD_SHIFT(reg, field))
+/* Timeout should be longer when working with simulator but cap the
+ * increased timeout to some maximum
+ */
#define hl_poll_timeout(hdev, addr, val, cond, sleep_us, timeout_us) \
({ \
ktime_t __timeout; \
- /* timeout should be longer when working with simulator */ \
if (hdev->pdev) \
__timeout = ktime_add_us(ktime_get(), timeout_us); \
else \
- __timeout = ktime_add_us(ktime_get(), (timeout_us * 10)); \
+ __timeout = ktime_add_us(ktime_get(),\
+ min((u64)(timeout_us * 10), \
+ (u64) HL_SIM_MAX_TIMEOUT_US)); \
might_sleep_if(sleep_us); \
for (;;) { \
(val) = RREG32(addr); \
@@ -1080,24 +1095,25 @@ void hl_wreg(struct hl_device *hdev, u32 reg, u32 val);
mem_written_by_device) \
({ \
ktime_t __timeout; \
- /* timeout should be longer when working with simulator */ \
if (hdev->pdev) \
__timeout = ktime_add_us(ktime_get(), timeout_us); \
else \
- __timeout = ktime_add_us(ktime_get(), (timeout_us * 10)); \
+ __timeout = ktime_add_us(ktime_get(),\
+ min((u64)(timeout_us * 10), \
+ (u64) HL_SIM_MAX_TIMEOUT_US)); \
might_sleep_if(sleep_us); \
for (;;) { \
/* Verify we read updates done by other cores or by device */ \
mb(); \
(val) = *((u32 *) (uintptr_t) (addr)); \
if (mem_written_by_device) \
- (val) = le32_to_cpu(val); \
+ (val) = le32_to_cpu(*(__le32 *) &(val)); \
if (cond) \
break; \
if (timeout_us && ktime_compare(ktime_get(), __timeout) > 0) { \
(val) = *((u32 *) (uintptr_t) (addr)); \
if (mem_written_by_device) \
- (val) = le32_to_cpu(val); \
+ (val) = le32_to_cpu(*(__le32 *) &(val)); \
break; \
} \
if (sleep_us) \
@@ -1110,11 +1126,12 @@ void hl_wreg(struct hl_device *hdev, u32 reg, u32 val);
timeout_us) \
({ \
ktime_t __timeout; \
- /* timeout should be longer when working with simulator */ \
if (hdev->pdev) \
__timeout = ktime_add_us(ktime_get(), timeout_us); \
else \
- __timeout = ktime_add_us(ktime_get(), (timeout_us * 10)); \
+ __timeout = ktime_add_us(ktime_get(),\
+ min((u64)(timeout_us * 10), \
+ (u64) HL_SIM_MAX_TIMEOUT_US)); \
might_sleep_if(sleep_us); \
for (;;) { \
(val) = readl(addr); \
@@ -1143,12 +1160,24 @@ struct hl_device_reset_work {
};
/**
+ * struct hl_device_idle_busy_ts - used for calculating device utilization rate.
+ * @idle_to_busy_ts: timestamp where device changed from idle to busy.
+ * @busy_to_idle_ts: timestamp where device changed from busy to idle.
+ */
+struct hl_device_idle_busy_ts {
+ ktime_t idle_to_busy_ts;
+ ktime_t busy_to_idle_ts;
+};
+
+/**
* struct hl_device - habanalabs device structure.
* @pdev: pointer to PCI device, can be NULL in case of simulator device.
* @pcie_bar: array of available PCIe bars.
* @rmmio: configuration area address on SRAM.
* @cdev: related char device.
- * @dev: realted kernel basic device structure.
+ * @cdev_ctrl: char device for control operations only (INFO IOCTL)
+ * @dev: related kernel basic device structure.
+ * @dev_ctrl: related kernel device structure for the control device
* @work_freq: delayed work to lower device frequency if possible.
* @work_heartbeat: delayed work for ArmCP is-alive check.
* @asic_name: ASIC specific nmae.
@@ -1156,25 +1185,19 @@ struct hl_device_reset_work {
* @completion_queue: array of hl_cq.
* @cq_wq: work queue of completion queues for executing work in process context
* @eq_wq: work queue of event queue for executing work in process context.
- * @kernel_ctx: KMD context structure.
+ * @kernel_ctx: Kernel driver context structure.
* @kernel_queues: array of hl_hw_queue.
* @hw_queues_mirror_list: CS mirror list for TDR.
* @hw_queues_mirror_lock: protects hw_queues_mirror_list.
* @kernel_cb_mgr: command buffer manager for creating/destroying/handling CGs.
* @event_queue: event queue for IRQ from ArmCP.
* @dma_pool: DMA pool for small allocations.
- * @cpu_accessible_dma_mem: KMD <-> ArmCP shared memory CPU address.
- * @cpu_accessible_dma_address: KMD <-> ArmCP shared memory DMA address.
- * @cpu_accessible_dma_pool: KMD <-> ArmCP shared memory pool.
+ * @cpu_accessible_dma_mem: Host <-> ArmCP shared memory CPU address.
+ * @cpu_accessible_dma_address: Host <-> ArmCP shared memory DMA address.
+ * @cpu_accessible_dma_pool: Host <-> ArmCP shared memory pool.
* @asid_bitmap: holds used/available ASIDs.
* @asid_mutex: protects asid_bitmap.
- * @fd_open_cnt_lock: lock for updating fd_open_cnt in hl_device_open. Although
- * fd_open_cnt is atomic, we need this lock to serialize
- * the open function because the driver currently supports
- * only a single process at a time. In addition, we need a
- * lock here so we can flush user processes which are opening
- * the device while we are trying to hard reset it
- * @send_cpu_message_lock: enforces only one message in KMD <-> ArmCP queue.
+ * @send_cpu_message_lock: enforces only one message in Host <-> ArmCP queue.
* @debug_lock: protects critical section of setting debug mode for device
* @asic_prop: ASIC specific immutable properties.
* @asic_funcs: ASIC specific functions.
@@ -1189,22 +1212,28 @@ struct hl_device_reset_work {
* @hl_debugfs: device's debugfs manager.
* @cb_pool: list of preallocated CBs.
* @cb_pool_lock: protects the CB pool.
- * @user_ctx: current user context executing.
+ * @fpriv_list: list of file private data structures. Each structure is created
+ * when a user opens the device
+ * @fpriv_list_lock: protects the fpriv_list
+ * @compute_ctx: current compute context executing.
+ * @idle_busy_ts_arr: array to hold time stamps of transitions from idle to busy
+ * and vice-versa
* @dram_used_mem: current DRAM memory consumption.
* @timeout_jiffies: device CS timeout value.
* @max_power: the max power of the device, as configured by the sysadmin. This
- * value is saved so in case of hard-reset, KMD will restore this
- * value and update the F/W after the re-initialization
+ * value is saved so in case of hard-reset, the driver will restore
+ * this value and update the F/W after the re-initialization
* @in_reset: is device in reset flow.
* @curr_pll_profile: current PLL profile.
- * @fd_open_cnt: number of open user processes.
* @cs_active_cnt: number of active command submissions on this device (active
* means already in H/W queues)
- * @major: habanalabs KMD major.
+ * @major: habanalabs kernel driver major.
* @high_pll: high PLL profile frequency.
- * @soft_reset_cnt: number of soft reset since KMD loading.
- * @hard_reset_cnt: number of hard reset since KMD loading.
+ * @soft_reset_cnt: number of soft reset since the driver was loaded.
+ * @hard_reset_cnt: number of hard reset since the driver was loaded.
+ * @idle_busy_ts_idx: index of current entry in idle_busy_ts_arr
* @id: device minor.
+ * @id_control: minor of the control device
* @disabled: is device disabled.
* @late_init_done: is late init stage was done during initialization.
* @hwmon_initialized: is H/W monitor sensors was initialized.
@@ -1218,15 +1247,18 @@ struct hl_device_reset_work {
* @mmu_enable: is MMU enabled.
* @device_cpu_disabled: is the device CPU disabled (due to timeouts)
* @dma_mask: the dma mask that was set for this device
- * @in_debug: is device under debug. This, together with fd_open_cnt, enforces
+ * @in_debug: is device under debug. This, together with fpriv_list, enforces
* that only a single user is configuring the debug infrastructure.
+ * @cdev_sysfs_created: were char devices and sysfs nodes created.
*/
struct hl_device {
struct pci_dev *pdev;
void __iomem *pcie_bar[6];
void __iomem *rmmio;
struct cdev cdev;
+ struct cdev cdev_ctrl;
struct device *dev;
+ struct device *dev_ctrl;
struct delayed_work work_freq;
struct delayed_work work_heartbeat;
char asic_name[16];
@@ -1246,8 +1278,6 @@ struct hl_device {
struct gen_pool *cpu_accessible_dma_pool;
unsigned long *asid_bitmap;
struct mutex asid_mutex;
- /* TODO: remove fd_open_cnt_lock for multiple process support */
- struct mutex fd_open_cnt_lock;
struct mutex send_cpu_message_lock;
struct mutex debug_lock;
struct asic_fixed_properties asic_prop;
@@ -1266,21 +1296,26 @@ struct hl_device {
struct list_head cb_pool;
spinlock_t cb_pool_lock;
- /* TODO: remove user_ctx for multiple process support */
- struct hl_ctx *user_ctx;
+ struct list_head fpriv_list;
+ struct mutex fpriv_list_lock;
+
+ struct hl_ctx *compute_ctx;
+
+ struct hl_device_idle_busy_ts *idle_busy_ts_arr;
atomic64_t dram_used_mem;
u64 timeout_jiffies;
u64 max_power;
atomic_t in_reset;
- atomic_t curr_pll_profile;
- atomic_t fd_open_cnt;
- atomic_t cs_active_cnt;
+ enum hl_pll_frequency curr_pll_profile;
+ int cs_active_cnt;
u32 major;
u32 high_pll;
u32 soft_reset_cnt;
u32 hard_reset_cnt;
+ u32 idle_busy_ts_idx;
u16 id;
+ u16 id_control;
u8 disabled;
u8 late_init_done;
u8 hwmon_initialized;
@@ -1293,6 +1328,7 @@ struct hl_device {
u8 device_cpu_disabled;
u8 dma_mask;
u8 in_debug;
+ u8 cdev_sysfs_created;
/* Parameters for bring-up */
u8 mmu_enable;
@@ -1386,6 +1422,7 @@ static inline bool hl_mem_area_crosses_range(u64 address, u32 size,
}
int hl_device_open(struct inode *inode, struct file *filp);
+int hl_device_open_ctrl(struct inode *inode, struct file *filp);
bool hl_device_disabled_or_in_reset(struct hl_device *hdev);
enum hl_device_status hl_device_status(struct hl_device *hdev);
int hl_device_set_debug_mode(struct hl_device *hdev, bool enable);
@@ -1439,6 +1476,7 @@ int hl_device_reset(struct hl_device *hdev, bool hard_reset,
void hl_hpriv_get(struct hl_fpriv *hpriv);
void hl_hpriv_put(struct hl_fpriv *hpriv);
int hl_device_set_frequency(struct hl_device *hdev, enum hl_pll_frequency freq);
+uint32_t hl_device_utilization(struct hl_device *hdev, uint32_t period_ms);
int hl_build_hwmon_channel_info(struct hl_device *hdev,
struct armcp_sensor *sensors_arr);
@@ -1625,6 +1663,7 @@ static inline void hl_debugfs_remove_ctx_mem_hash(struct hl_device *hdev,
/* IOCTLs */
long hl_ioctl(struct file *filep, unsigned int cmd, unsigned long arg);
+long hl_ioctl_control(struct file *filep, unsigned int cmd, unsigned long arg);
int hl_cb_ioctl(struct hl_fpriv *hpriv, void *data);
int hl_cs_ioctl(struct hl_fpriv *hpriv, void *data);
int hl_cs_wait_ioctl(struct hl_fpriv *hpriv, void *data);
diff --git a/drivers/misc/habanalabs/habanalabs_drv.c b/drivers/misc/habanalabs/habanalabs_drv.c
index 6f6dbe93f1df..8c342fb499ca 100644
--- a/drivers/misc/habanalabs/habanalabs_drv.c
+++ b/drivers/misc/habanalabs/habanalabs_drv.c
@@ -95,80 +95,127 @@ int hl_device_open(struct inode *inode, struct file *filp)
return -ENXIO;
}
- mutex_lock(&hdev->fd_open_cnt_lock);
+ hpriv = kzalloc(sizeof(*hpriv), GFP_KERNEL);
+ if (!hpriv)
+ return -ENOMEM;
+
+ hpriv->hdev = hdev;
+ filp->private_data = hpriv;
+ hpriv->filp = filp;
+ mutex_init(&hpriv->restore_phase_mutex);
+ kref_init(&hpriv->refcount);
+ nonseekable_open(inode, filp);
+
+ hl_cb_mgr_init(&hpriv->cb_mgr);
+ hl_ctx_mgr_init(&hpriv->ctx_mgr);
+
+ hpriv->taskpid = find_get_pid(current->pid);
+
+ mutex_lock(&hdev->fpriv_list_lock);
if (hl_device_disabled_or_in_reset(hdev)) {
dev_err_ratelimited(hdev->dev,
"Can't open %s because it is disabled or in reset\n",
dev_name(hdev->dev));
- mutex_unlock(&hdev->fd_open_cnt_lock);
- return -EPERM;
+ rc = -EPERM;
+ goto out_err;
}
if (hdev->in_debug) {
dev_err_ratelimited(hdev->dev,
"Can't open %s because it is being debugged by another user\n",
dev_name(hdev->dev));
- mutex_unlock(&hdev->fd_open_cnt_lock);
- return -EPERM;
+ rc = -EPERM;
+ goto out_err;
}
- if (atomic_read(&hdev->fd_open_cnt)) {
- dev_info_ratelimited(hdev->dev,
+ if (hdev->compute_ctx) {
+ dev_dbg_ratelimited(hdev->dev,
"Can't open %s because another user is working on it\n",
dev_name(hdev->dev));
- mutex_unlock(&hdev->fd_open_cnt_lock);
- return -EBUSY;
- }
-
- atomic_inc(&hdev->fd_open_cnt);
-
- mutex_unlock(&hdev->fd_open_cnt_lock);
-
- hpriv = kzalloc(sizeof(*hpriv), GFP_KERNEL);
- if (!hpriv) {
- rc = -ENOMEM;
- goto close_device;
+ rc = -EBUSY;
+ goto out_err;
}
- hpriv->hdev = hdev;
- filp->private_data = hpriv;
- hpriv->filp = filp;
- mutex_init(&hpriv->restore_phase_mutex);
- kref_init(&hpriv->refcount);
- nonseekable_open(inode, filp);
-
- hl_cb_mgr_init(&hpriv->cb_mgr);
- hl_ctx_mgr_init(&hpriv->ctx_mgr);
-
rc = hl_ctx_create(hdev, hpriv);
if (rc) {
- dev_err(hdev->dev, "Failed to open FD (CTX fail)\n");
+ dev_err(hdev->dev, "Failed to create context %d\n", rc);
goto out_err;
}
- hpriv->taskpid = find_get_pid(current->pid);
-
- /*
- * Device is IDLE at this point so it is legal to change PLLs. There
- * is no need to check anything because if the PLL is already HIGH, the
- * set function will return without doing anything
+ /* Device is IDLE at this point so it is legal to change PLLs.
+ * There is no need to check anything because if the PLL is
+ * already HIGH, the set function will return without doing
+ * anything
*/
hl_device_set_frequency(hdev, PLL_HIGH);
+ list_add(&hpriv->dev_node, &hdev->fpriv_list);
+ mutex_unlock(&hdev->fpriv_list_lock);
+
hl_debugfs_add_file(hpriv);
return 0;
out_err:
- filp->private_data = NULL;
- hl_ctx_mgr_fini(hpriv->hdev, &hpriv->ctx_mgr);
+ mutex_unlock(&hdev->fpriv_list_lock);
+
hl_cb_mgr_fini(hpriv->hdev, &hpriv->cb_mgr);
+ hl_ctx_mgr_fini(hpriv->hdev, &hpriv->ctx_mgr);
+ filp->private_data = NULL;
mutex_destroy(&hpriv->restore_phase_mutex);
+ put_pid(hpriv->taskpid);
+
kfree(hpriv);
+ return rc;
+}
+
+int hl_device_open_ctrl(struct inode *inode, struct file *filp)
+{
+ struct hl_device *hdev;
+ struct hl_fpriv *hpriv;
+ int rc;
+
+ mutex_lock(&hl_devs_idr_lock);
+ hdev = idr_find(&hl_devs_idr, iminor(inode));
+ mutex_unlock(&hl_devs_idr_lock);
+
+ if (!hdev) {
+ pr_err("Couldn't find device %d:%d\n",
+ imajor(inode), iminor(inode));
+ return -ENXIO;
+ }
+
+ hpriv = kzalloc(sizeof(*hpriv), GFP_KERNEL);
+ if (!hpriv)
+ return -ENOMEM;
+
+ mutex_lock(&hdev->fpriv_list_lock);
+
+ if (hl_device_disabled_or_in_reset(hdev)) {
+ dev_err_ratelimited(hdev->dev_ctrl,
+ "Can't open %s because it is disabled or in reset\n",
+ dev_name(hdev->dev_ctrl));
+ rc = -EPERM;
+ goto out_err;
+ }
-close_device:
- atomic_dec(&hdev->fd_open_cnt);
+ list_add(&hpriv->dev_node, &hdev->fpriv_list);
+ mutex_unlock(&hdev->fpriv_list_lock);
+
+ hpriv->hdev = hdev;
+ filp->private_data = hpriv;
+ hpriv->filp = filp;
+ hpriv->is_control = true;
+ nonseekable_open(inode, filp);
+
+ hpriv->taskpid = find_get_pid(current->pid);
+
+ return 0;
+
+out_err:
+ mutex_unlock(&hdev->fpriv_list_lock);
+ kfree(hpriv);
return rc;
}
@@ -199,7 +246,7 @@ int create_hdev(struct hl_device **dev, struct pci_dev *pdev,
enum hl_asic_type asic_type, int minor)
{
struct hl_device *hdev;
- int rc;
+ int rc, main_id, ctrl_id = 0;
*dev = NULL;
@@ -240,33 +287,34 @@ int create_hdev(struct hl_device **dev, struct pci_dev *pdev,
mutex_lock(&hl_devs_idr_lock);
- if (minor == -1) {
- rc = idr_alloc(&hl_devs_idr, hdev, 0, HL_MAX_MINORS,
+ /* Always save 2 numbers, 1 for main device and 1 for control.
+ * They must be consecutive
+ */
+ main_id = idr_alloc(&hl_devs_idr, hdev, 0, HL_MAX_MINORS,
GFP_KERNEL);
- } else {
- void *old_idr = idr_replace(&hl_devs_idr, hdev, minor);
- if (IS_ERR_VALUE(old_idr)) {
- rc = PTR_ERR(old_idr);
- pr_err("Error %d when trying to replace minor %d\n",
- rc, minor);
- mutex_unlock(&hl_devs_idr_lock);
- goto free_hdev;
- }
- rc = minor;
- }
+ if (main_id >= 0)
+ ctrl_id = idr_alloc(&hl_devs_idr, hdev, main_id + 1,
+ main_id + 2, GFP_KERNEL);
mutex_unlock(&hl_devs_idr_lock);
- if (rc < 0) {
- if (rc == -ENOSPC) {
+ if ((main_id < 0) || (ctrl_id < 0)) {
+ if ((main_id == -ENOSPC) || (ctrl_id == -ENOSPC))
pr_err("too many devices in the system\n");
- rc = -EBUSY;
+
+ if (main_id >= 0) {
+ mutex_lock(&hl_devs_idr_lock);
+ idr_remove(&hl_devs_idr, main_id);
+ mutex_unlock(&hl_devs_idr_lock);
}
+
+ rc = -EBUSY;
goto free_hdev;
}
- hdev->id = rc;
+ hdev->id = main_id;
+ hdev->id_control = ctrl_id;
*dev = hdev;
@@ -288,6 +336,7 @@ void destroy_hdev(struct hl_device *hdev)
/* Remove device from the device list */
mutex_lock(&hl_devs_idr_lock);
idr_remove(&hl_devs_idr, hdev->id);
+ idr_remove(&hl_devs_idr, hdev->id_control);
mutex_unlock(&hl_devs_idr_lock);
kfree(hdev);
@@ -295,8 +344,7 @@ void destroy_hdev(struct hl_device *hdev)
static int hl_pmops_suspend(struct device *dev)
{
- struct pci_dev *pdev = to_pci_dev(dev);
- struct hl_device *hdev = pci_get_drvdata(pdev);
+ struct hl_device *hdev = dev_get_drvdata(dev);
pr_debug("Going to suspend PCI device\n");
@@ -310,8 +358,7 @@ static int hl_pmops_suspend(struct device *dev)
static int hl_pmops_resume(struct device *dev)
{
- struct pci_dev *pdev = to_pci_dev(dev);
- struct hl_device *hdev = pci_get_drvdata(pdev);
+ struct hl_device *hdev = dev_get_drvdata(dev);
pr_debug("Going to resume PCI device\n");
diff --git a/drivers/misc/habanalabs/habanalabs_ioctl.c b/drivers/misc/habanalabs/habanalabs_ioctl.c
index 07127576b3e8..66d9c710073c 100644
--- a/drivers/misc/habanalabs/habanalabs_ioctl.c
+++ b/drivers/misc/habanalabs/habanalabs_ioctl.c
@@ -65,7 +65,7 @@ static int hw_ip_info(struct hl_device *hdev, struct hl_info_args *args)
hw_ip.num_of_events = prop->num_of_events;
memcpy(hw_ip.armcp_version,
prop->armcp_info.armcp_version, VERSION_MAX_LEN);
- hw_ip.armcp_cpld_version = __le32_to_cpu(prop->armcp_info.cpld_version);
+ hw_ip.armcp_cpld_version = le32_to_cpu(prop->armcp_info.cpld_version);
hw_ip.psoc_pci_pll_nr = prop->psoc_pci_pll_nr;
hw_ip.psoc_pci_pll_nf = prop->psoc_pci_pll_nf;
hw_ip.psoc_pci_pll_od = prop->psoc_pci_pll_od;
@@ -75,7 +75,8 @@ static int hw_ip_info(struct hl_device *hdev, struct hl_info_args *args)
min((size_t)size, sizeof(hw_ip))) ? -EFAULT : 0;
}
-static int hw_events_info(struct hl_device *hdev, struct hl_info_args *args)
+static int hw_events_info(struct hl_device *hdev, bool aggregate,
+ struct hl_info_args *args)
{
u32 size, max_size = args->return_size;
void __user *out = (void __user *) (uintptr_t) args->return_pointer;
@@ -84,13 +85,14 @@ static int hw_events_info(struct hl_device *hdev, struct hl_info_args *args)
if ((!max_size) || (!out))
return -EINVAL;
- arr = hdev->asic_funcs->get_events_stat(hdev, &size);
+ arr = hdev->asic_funcs->get_events_stat(hdev, aggregate, &size);
return copy_to_user(out, arr, min(max_size, size)) ? -EFAULT : 0;
}
-static int dram_usage_info(struct hl_device *hdev, struct hl_info_args *args)
+static int dram_usage_info(struct hl_fpriv *hpriv, struct hl_info_args *args)
{
+ struct hl_device *hdev = hpriv->hdev;
struct hl_info_dram_usage dram_usage = {0};
u32 max_size = args->return_size;
void __user *out = (void __user *) (uintptr_t) args->return_pointer;
@@ -104,7 +106,9 @@ static int dram_usage_info(struct hl_device *hdev, struct hl_info_args *args)
prop->dram_base_address);
dram_usage.dram_free_mem = (prop->dram_size - dram_kmd_size) -
atomic64_read(&hdev->dram_used_mem);
- dram_usage.ctx_dram_mem = atomic64_read(&hdev->user_ctx->dram_phys_mem);
+ if (hpriv->ctx)
+ dram_usage.ctx_dram_mem =
+ atomic64_read(&hpriv->ctx->dram_phys_mem);
return copy_to_user(out, &dram_usage,
min((size_t) max_size, sizeof(dram_usage))) ? -EFAULT : 0;
@@ -141,13 +145,16 @@ static int debug_coresight(struct hl_device *hdev, struct hl_debug_args *args)
params->op = args->op;
if (args->input_ptr && args->input_size) {
- input = memdup_user(u64_to_user_ptr(args->input_ptr),
- args->input_size);
- if (IS_ERR(input)) {
- rc = PTR_ERR(input);
- input = NULL;
- dev_err(hdev->dev,
- "error %d when copying input debug data\n", rc);
+ input = kzalloc(hl_debug_struct_size[args->op], GFP_KERNEL);
+ if (!input) {
+ rc = -ENOMEM;
+ goto out;
+ }
+
+ if (copy_from_user(input, u64_to_user_ptr(args->input_ptr),
+ args->input_size)) {
+ rc = -EFAULT;
+ dev_err(hdev->dev, "failed to copy input debug data\n");
goto out;
}
@@ -191,42 +198,81 @@ out:
return rc;
}
-static int hl_info_ioctl(struct hl_fpriv *hpriv, void *data)
+static int device_utilization(struct hl_device *hdev, struct hl_info_args *args)
+{
+ struct hl_info_device_utilization device_util = {0};
+ u32 max_size = args->return_size;
+ void __user *out = (void __user *) (uintptr_t) args->return_pointer;
+
+ if ((!max_size) || (!out))
+ return -EINVAL;
+
+ if ((args->period_ms < 100) || (args->period_ms > 1000) ||
+ (args->period_ms % 100)) {
+ dev_err(hdev->dev,
+ "period %u must be between 100 - 1000 and must be divisible by 100\n",
+ args->period_ms);
+ return -EINVAL;
+ }
+
+ device_util.utilization = hl_device_utilization(hdev, args->period_ms);
+
+ return copy_to_user(out, &device_util,
+ min((size_t) max_size, sizeof(device_util))) ? -EFAULT : 0;
+}
+
+static int _hl_info_ioctl(struct hl_fpriv *hpriv, void *data,
+ struct device *dev)
{
struct hl_info_args *args = data;
struct hl_device *hdev = hpriv->hdev;
int rc;
- /* We want to return device status even if it disabled or in reset */
- if (args->op == HL_INFO_DEVICE_STATUS)
+ /*
+ * Information is returned for the following opcodes even if the device
+ * is disabled or in reset.
+ */
+ switch (args->op) {
+ case HL_INFO_HW_IP_INFO:
+ return hw_ip_info(hdev, args);
+
+ case HL_INFO_DEVICE_STATUS:
return device_status_info(hdev, args);
+ default:
+ break;
+ }
+
if (hl_device_disabled_or_in_reset(hdev)) {
- dev_warn_ratelimited(hdev->dev,
+ dev_warn_ratelimited(dev,
"Device is %s. Can't execute INFO IOCTL\n",
atomic_read(&hdev->in_reset) ? "in_reset" : "disabled");
return -EBUSY;
}
switch (args->op) {
- case HL_INFO_HW_IP_INFO:
- rc = hw_ip_info(hdev, args);
- break;
-
case HL_INFO_HW_EVENTS:
- rc = hw_events_info(hdev, args);
+ rc = hw_events_info(hdev, false, args);
break;
case HL_INFO_DRAM_USAGE:
- rc = dram_usage_info(hdev, args);
+ rc = dram_usage_info(hpriv, args);
break;
case HL_INFO_HW_IDLE:
rc = hw_idle(hdev, args);
break;
+ case HL_INFO_DEVICE_UTILIZATION:
+ rc = device_utilization(hdev, args);
+ break;
+
+ case HL_INFO_HW_EVENTS_AGGREGATE:
+ rc = hw_events_info(hdev, true, args);
+ break;
+
default:
- dev_err(hdev->dev, "Invalid request %d\n", args->op);
+ dev_err(dev, "Invalid request %d\n", args->op);
rc = -ENOTTY;
break;
}
@@ -234,6 +280,16 @@ static int hl_info_ioctl(struct hl_fpriv *hpriv, void *data)
return rc;
}
+static int hl_info_ioctl(struct hl_fpriv *hpriv, void *data)
+{
+ return _hl_info_ioctl(hpriv, data, hpriv->hdev->dev);
+}
+
+static int hl_info_ioctl_control(struct hl_fpriv *hpriv, void *data)
+{
+ return _hl_info_ioctl(hpriv, data, hpriv->hdev->dev_ctrl);
+}
+
static int hl_debug_ioctl(struct hl_fpriv *hpriv, void *data)
{
struct hl_debug_args *args = data;
@@ -288,52 +344,45 @@ static const struct hl_ioctl_desc hl_ioctls[] = {
HL_IOCTL_DEF(HL_IOCTL_DEBUG, hl_debug_ioctl)
};
-#define HL_CORE_IOCTL_COUNT ARRAY_SIZE(hl_ioctls)
+static const struct hl_ioctl_desc hl_ioctls_control[] = {
+ HL_IOCTL_DEF(HL_IOCTL_INFO, hl_info_ioctl_control)
+};
-long hl_ioctl(struct file *filep, unsigned int cmd, unsigned long arg)
+static long _hl_ioctl(struct file *filep, unsigned int cmd, unsigned long arg,
+ const struct hl_ioctl_desc *ioctl, struct device *dev)
{
struct hl_fpriv *hpriv = filep->private_data;
struct hl_device *hdev = hpriv->hdev;
- hl_ioctl_t *func;
- const struct hl_ioctl_desc *ioctl = NULL;
unsigned int nr = _IOC_NR(cmd);
char stack_kdata[128] = {0};
char *kdata = NULL;
unsigned int usize, asize;
+ hl_ioctl_t *func;
+ u32 hl_size;
int retcode;
if (hdev->hard_reset_pending) {
- dev_crit_ratelimited(hdev->dev,
+ dev_crit_ratelimited(hdev->dev_ctrl,
"Device HARD reset pending! Please close FD\n");
return -ENODEV;
}
- if ((nr >= HL_COMMAND_START) && (nr < HL_COMMAND_END)) {
- u32 hl_size;
-
- ioctl = &hl_ioctls[nr];
-
- hl_size = _IOC_SIZE(ioctl->cmd);
- usize = asize = _IOC_SIZE(cmd);
- if (hl_size > asize)
- asize = hl_size;
-
- cmd = ioctl->cmd;
- } else {
- dev_err(hdev->dev, "invalid ioctl: pid=%d, nr=0x%02x\n",
- task_pid_nr(current), nr);
- return -ENOTTY;
- }
-
/* Do not trust userspace, use our own definition */
func = ioctl->func;
if (unlikely(!func)) {
- dev_dbg(hdev->dev, "no function\n");
+ dev_dbg(dev, "no function\n");
retcode = -ENOTTY;
goto out_err;
}
+ hl_size = _IOC_SIZE(ioctl->cmd);
+ usize = asize = _IOC_SIZE(cmd);
+ if (hl_size > asize)
+ asize = hl_size;
+
+ cmd = ioctl->cmd;
+
if (cmd & (IOC_IN | IOC_OUT)) {
if (asize <= sizeof(stack_kdata)) {
kdata = stack_kdata;
@@ -363,8 +412,7 @@ long hl_ioctl(struct file *filep, unsigned int cmd, unsigned long arg)
out_err:
if (retcode)
- dev_dbg(hdev->dev,
- "error in ioctl: pid=%d, cmd=0x%02x, nr=0x%02x\n",
+ dev_dbg(dev, "error in ioctl: pid=%d, cmd=0x%02x, nr=0x%02x\n",
task_pid_nr(current), cmd, nr);
if (kdata != stack_kdata)
@@ -372,3 +420,39 @@ out_err:
return retcode;
}
+
+long hl_ioctl(struct file *filep, unsigned int cmd, unsigned long arg)
+{
+ struct hl_fpriv *hpriv = filep->private_data;
+ struct hl_device *hdev = hpriv->hdev;
+ const struct hl_ioctl_desc *ioctl = NULL;
+ unsigned int nr = _IOC_NR(cmd);
+
+ if ((nr >= HL_COMMAND_START) && (nr < HL_COMMAND_END)) {
+ ioctl = &hl_ioctls[nr];
+ } else {
+ dev_err(hdev->dev, "invalid ioctl: pid=%d, nr=0x%02x\n",
+ task_pid_nr(current), nr);
+ return -ENOTTY;
+ }
+
+ return _hl_ioctl(filep, cmd, arg, ioctl, hdev->dev);
+}
+
+long hl_ioctl_control(struct file *filep, unsigned int cmd, unsigned long arg)
+{
+ struct hl_fpriv *hpriv = filep->private_data;
+ struct hl_device *hdev = hpriv->hdev;
+ const struct hl_ioctl_desc *ioctl = NULL;
+ unsigned int nr = _IOC_NR(cmd);
+
+ if (nr == _IOC_NR(HL_IOCTL_INFO)) {
+ ioctl = &hl_ioctls_control[nr];
+ } else {
+ dev_err(hdev->dev_ctrl, "invalid ioctl: pid=%d, nr=0x%02x\n",
+ task_pid_nr(current), nr);
+ return -ENOTTY;
+ }
+
+ return _hl_ioctl(filep, cmd, arg, ioctl, hdev->dev_ctrl);
+}
diff --git a/drivers/misc/habanalabs/hw_queue.c b/drivers/misc/habanalabs/hw_queue.c
index 5f5673b74985..55b383b2a116 100644
--- a/drivers/misc/habanalabs/hw_queue.c
+++ b/drivers/misc/habanalabs/hw_queue.c
@@ -80,9 +80,9 @@ static void ext_queue_submit_bd(struct hl_device *hdev, struct hl_hw_queue *q,
bd = (struct hl_bd *) (uintptr_t) q->kernel_address;
bd += hl_pi_2_offset(q->pi);
- bd->ctl = __cpu_to_le32(ctl);
- bd->len = __cpu_to_le32(len);
- bd->ptr = __cpu_to_le64(ptr);
+ bd->ctl = cpu_to_le32(ctl);
+ bd->len = cpu_to_le32(len);
+ bd->ptr = cpu_to_le64(ptr);
q->pi = hl_queue_inc_ptr(q->pi);
hdev->asic_funcs->ring_doorbell(hdev, q->hw_queue_id, q->pi);
@@ -249,7 +249,7 @@ static void ext_hw_queue_schedule_job(struct hl_cs_job *job)
len = job->job_cb_size;
ptr = cb->bus_address;
- cq_pkt.data = __cpu_to_le32(
+ cq_pkt.data = cpu_to_le32(
((q->pi << CQ_ENTRY_SHADOW_INDEX_SHIFT)
& CQ_ENTRY_SHADOW_INDEX_MASK) |
(1 << CQ_ENTRY_SHADOW_INDEX_VALID_SHIFT) |
@@ -267,7 +267,7 @@ static void ext_hw_queue_schedule_job(struct hl_cs_job *job)
hdev->asic_funcs->add_end_of_cb_packets(hdev, cb->kernel_address, len,
cq_addr,
- __le32_to_cpu(cq_pkt.data),
+ le32_to_cpu(cq_pkt.data),
q->hw_queue_id);
q->shadow_queue[hl_pi_2_offset(q->pi)] = job;
@@ -364,7 +364,13 @@ int hl_hw_queue_schedule_cs(struct hl_cs *cs)
spin_unlock(&hdev->hw_queues_mirror_lock);
}
- atomic_inc(&hdev->cs_active_cnt);
+ if (!hdev->cs_active_cnt++) {
+ struct hl_device_idle_busy_ts *ts;
+
+ ts = &hdev->idle_busy_ts_arr[hdev->idle_busy_ts_idx];
+ ts->busy_to_idle_ts = ktime_set(0, 0);
+ ts->idle_to_busy_ts = ktime_get();
+ }
list_for_each_entry_safe(job, tmp, &cs->job_list, cs_node)
if (job->ext_queue)
diff --git a/drivers/misc/habanalabs/hwmon.c b/drivers/misc/habanalabs/hwmon.c
index 77facd25c4a2..7be4bace9b4f 100644
--- a/drivers/misc/habanalabs/hwmon.c
+++ b/drivers/misc/habanalabs/hwmon.c
@@ -26,7 +26,7 @@ int hl_build_hwmon_channel_info(struct hl_device *hdev,
int rc, i, j;
for (i = 0 ; i < ARMCP_MAX_SENSORS ; i++) {
- type = __le32_to_cpu(sensors_arr[i].type);
+ type = le32_to_cpu(sensors_arr[i].type);
if ((type == 0) && (sensors_arr[i].flags == 0))
break;
@@ -58,10 +58,10 @@ int hl_build_hwmon_channel_info(struct hl_device *hdev,
}
for (i = 0 ; i < arr_size ; i++) {
- type = __le32_to_cpu(sensors_arr[i].type);
+ type = le32_to_cpu(sensors_arr[i].type);
curr_arr = sensors_by_type[type];
curr_arr[sensors_by_type_next_index[type]++] =
- __le32_to_cpu(sensors_arr[i].flags);
+ le32_to_cpu(sensors_arr[i].flags);
}
channels_info = kcalloc(num_active_sensor_types + 1,
@@ -273,7 +273,7 @@ long hl_get_temperature(struct hl_device *hdev, int sensor_index, u32 attr)
memset(&pkt, 0, sizeof(pkt));
- pkt.ctl = __cpu_to_le32(ARMCP_PACKET_TEMPERATURE_GET <<
+ pkt.ctl = cpu_to_le32(ARMCP_PACKET_TEMPERATURE_GET <<
ARMCP_PKT_CTL_OPCODE_SHIFT);
pkt.sensor_index = __cpu_to_le16(sensor_index);
pkt.type = __cpu_to_le16(attr);
@@ -299,7 +299,7 @@ long hl_get_voltage(struct hl_device *hdev, int sensor_index, u32 attr)
memset(&pkt, 0, sizeof(pkt));
- pkt.ctl = __cpu_to_le32(ARMCP_PACKET_VOLTAGE_GET <<
+ pkt.ctl = cpu_to_le32(ARMCP_PACKET_VOLTAGE_GET <<
ARMCP_PKT_CTL_OPCODE_SHIFT);
pkt.sensor_index = __cpu_to_le16(sensor_index);
pkt.type = __cpu_to_le16(attr);
@@ -325,7 +325,7 @@ long hl_get_current(struct hl_device *hdev, int sensor_index, u32 attr)
memset(&pkt, 0, sizeof(pkt));
- pkt.ctl = __cpu_to_le32(ARMCP_PACKET_CURRENT_GET <<
+ pkt.ctl = cpu_to_le32(ARMCP_PACKET_CURRENT_GET <<
ARMCP_PKT_CTL_OPCODE_SHIFT);
pkt.sensor_index = __cpu_to_le16(sensor_index);
pkt.type = __cpu_to_le16(attr);
@@ -351,7 +351,7 @@ long hl_get_fan_speed(struct hl_device *hdev, int sensor_index, u32 attr)
memset(&pkt, 0, sizeof(pkt));
- pkt.ctl = __cpu_to_le32(ARMCP_PACKET_FAN_SPEED_GET <<
+ pkt.ctl = cpu_to_le32(ARMCP_PACKET_FAN_SPEED_GET <<
ARMCP_PKT_CTL_OPCODE_SHIFT);
pkt.sensor_index = __cpu_to_le16(sensor_index);
pkt.type = __cpu_to_le16(attr);
@@ -377,7 +377,7 @@ long hl_get_pwm_info(struct hl_device *hdev, int sensor_index, u32 attr)
memset(&pkt, 0, sizeof(pkt));
- pkt.ctl = __cpu_to_le32(ARMCP_PACKET_PWM_GET <<
+ pkt.ctl = cpu_to_le32(ARMCP_PACKET_PWM_GET <<
ARMCP_PKT_CTL_OPCODE_SHIFT);
pkt.sensor_index = __cpu_to_le16(sensor_index);
pkt.type = __cpu_to_le16(attr);
@@ -403,11 +403,11 @@ void hl_set_pwm_info(struct hl_device *hdev, int sensor_index, u32 attr,
memset(&pkt, 0, sizeof(pkt));
- pkt.ctl = __cpu_to_le32(ARMCP_PACKET_PWM_SET <<
+ pkt.ctl = cpu_to_le32(ARMCP_PACKET_PWM_SET <<
ARMCP_PKT_CTL_OPCODE_SHIFT);
pkt.sensor_index = __cpu_to_le16(sensor_index);
pkt.type = __cpu_to_le16(attr);
- pkt.value = __cpu_to_le64(value);
+ pkt.value = cpu_to_le64(value);
rc = hdev->asic_funcs->send_cpu_message(hdev, (u32 *) &pkt, sizeof(pkt),
SENSORS_PKT_TIMEOUT, NULL);
@@ -421,6 +421,7 @@ void hl_set_pwm_info(struct hl_device *hdev, int sensor_index, u32 attr,
int hl_hwmon_init(struct hl_device *hdev)
{
struct device *dev = hdev->pdev ? &hdev->pdev->dev : hdev->dev;
+ struct asic_fixed_properties *prop = &hdev->asic_prop;
int rc;
if ((hdev->hwmon_initialized) || !(hdev->fw_loading))
@@ -430,7 +431,8 @@ int hl_hwmon_init(struct hl_device *hdev)
hdev->hl_chip_info->ops = &hl_hwmon_ops;
hdev->hwmon_dev = hwmon_device_register_with_info(dev,
- "habanalabs", hdev, hdev->hl_chip_info, NULL);
+ prop->armcp_info.card_name, hdev,
+ hdev->hl_chip_info, NULL);
if (IS_ERR(hdev->hwmon_dev)) {
rc = PTR_ERR(hdev->hwmon_dev);
dev_err(hdev->dev,
diff --git a/drivers/misc/habanalabs/include/armcp_if.h b/drivers/misc/habanalabs/include/armcp_if.h
index 1f1e35e86d84..e4c6699a1868 100644
--- a/drivers/misc/habanalabs/include/armcp_if.h
+++ b/drivers/misc/habanalabs/include/armcp_if.h
@@ -1,6 +1,6 @@
/* SPDX-License-Identifier: GPL-2.0
*
- * Copyright 2016-2018 HabanaLabs, Ltd.
+ * Copyright 2016-2019 HabanaLabs, Ltd.
* All Rights Reserved.
*
*/
@@ -41,33 +41,34 @@ enum pq_init_status {
/*
* ArmCP Primary Queue Packets
*
- * During normal operation, KMD needs to send various messages to ArmCP,
- * usually either to SET some value into a H/W periphery or to GET the current
- * value of some H/W periphery. For example, SET the frequency of MME/TPC and
- * GET the value of the thermal sensor.
- *
- * These messages can be initiated either by the User application or by KMD
- * itself, e.g. power management code. In either case, the communication from
- * KMD to ArmCP will *always* be in synchronous mode, meaning that KMD will
- * send a single message and poll until the message was acknowledged and the
- * results are ready (if results are needed).
- *
- * This means that only a single message can be sent at a time and KMD must
- * wait for its result before sending the next message. Having said that,
- * because these are control messages which are sent in a relatively low
+ * During normal operation, the host's kernel driver needs to send various
+ * messages to ArmCP, usually either to SET some value into a H/W periphery or
+ * to GET the current value of some H/W periphery. For example, SET the
+ * frequency of MME/TPC and GET the value of the thermal sensor.
+ *
+ * These messages can be initiated either by the User application or by the
+ * host's driver itself, e.g. power management code. In either case, the
+ * communication from the host's driver to ArmCP will *always* be in
+ * synchronous mode, meaning that the host will send a single message and poll
+ * until the message was acknowledged and the results are ready (if results are
+ * needed).
+ *
+ * This means that only a single message can be sent at a time and the host's
+ * driver must wait for its result before sending the next message. Having said
+ * that, because these are control messages which are sent in a relatively low
* frequency, this limitation seems acceptable. It's important to note that
* in case of multiple devices, messages to different devices *can* be sent
* at the same time.
*
* The message, inputs/outputs (if relevant) and fence object will be located
- * on the device DDR at an address that will be determined by KMD. During
- * device initialization phase, KMD will pass to ArmCP that address. Most of
- * the message types will contain inputs/outputs inside the message itself.
- * The common part of each message will contain the opcode of the message (its
- * type) and a field representing a fence object.
- *
- * When KMD wishes to send a message to ArmCP, it will write the message
- * contents to the device DDR, clear the fence object and then write the
+ * on the device DDR at an address that will be determined by the host's driver.
+ * During device initialization phase, the host will pass to ArmCP that address.
+ * Most of the message types will contain inputs/outputs inside the message
+ * itself. The common part of each message will contain the opcode of the
+ * message (its type) and a field representing a fence object.
+ *
+ * When the host's driver wishes to send a message to ArmCP, it will write the
+ * message contents to the device DDR, clear the fence object and then write the
* value 484 to the mmGIC_DISTRIBUTOR__5_GICD_SETSPI_NSR register to issue
* the 484 interrupt-id to the ARM core.
*
@@ -78,12 +79,13 @@ enum pq_init_status {
* device DDR and then write to the fence object. If an error occurred, ArmCP
* will fill the rc field with the right error code.
*
- * In the meantime, KMD will poll on the fence object. Once KMD sees that the
- * fence object is signaled, it will read the results from the device DDR
- * (if relevant) and resume the code execution in KMD.
+ * In the meantime, the host's driver will poll on the fence object. Once the
+ * host sees that the fence object is signaled, it will read the results from
+ * the device DDR (if relevant) and resume the code execution in the host's
+ * driver.
*
* To use QMAN packets, the opcode must be the QMAN opcode, shifted by 8
- * so the value being put by the KMD matches the value read by ArmCP
+ * so the value being put by the host's driver matches the value read by ArmCP
*
* Non-QMAN packets should be limited to values 1 through (2^8 - 1)
*
@@ -148,9 +150,9 @@ enum pq_init_status {
*
* ARMCP_PACKET_INFO_GET -
* Fetch information from the device as specified in the packet's
- * structure. KMD passes the max size it allows the ArmCP to write to
- * the structure, to prevent data corruption in case of mismatched
- * KMD/FW versions.
+ * structure. The host's driver passes the max size it allows the ArmCP to
+ * write to the structure, to prevent data corruption in case of
+ * mismatched driver/FW versions.
*
* ARMCP_PACKET_FLASH_PROGRAM_REMOVED - this packet was removed
*
@@ -183,9 +185,9 @@ enum pq_init_status {
* ARMCP_PACKET_EEPROM_DATA_GET -
* Get EEPROM data from the ArmCP kernel. The buffer is specified in the
* addr field. The CPU will put the returned data size in the result
- * field. In addition, KMD passes the max size it allows the ArmCP to
- * write to the structure, to prevent data corruption in case of
- * mismatched KMD/FW versions.
+ * field. In addition, the host's driver passes the max size it allows the
+ * ArmCP to write to the structure, to prevent data corruption in case of
+ * mismatched driver/FW versions.
*
*/
@@ -231,7 +233,7 @@ struct armcp_packet {
__le32 ctl;
- __le32 fence; /* Signal to KMD that message is completed */
+ __le32 fence; /* Signal to host that message is completed */
union {
struct {/* For temperature/current/voltage/fan/pwm get/set */
@@ -310,6 +312,7 @@ struct eq_generic_event {
* ArmCP info
*/
+#define CARD_NAME_MAX_LEN 16
#define VERSION_MAX_LEN 128
#define ARMCP_MAX_SENSORS 128
@@ -318,6 +321,19 @@ struct armcp_sensor {
__le32 flags;
};
+/**
+ * struct armcp_info - Info from ArmCP that is necessary to the host's driver
+ * @sensors: available sensors description.
+ * @kernel_version: ArmCP linux kernel version.
+ * @reserved: reserved field.
+ * @cpld_version: CPLD programmed F/W version.
+ * @infineon_version: Infineon main DC-DC version.
+ * @fuse_version: silicon production FUSE information.
+ * @thermal_version: thermald S/W version.
+ * @armcp_version: ArmCP S/W version.
+ * @dram_size: available DRAM size.
+ * @card_name: card name that will be displayed in HWMON subsystem on the host
+ */
struct armcp_info {
struct armcp_sensor sensors[ARMCP_MAX_SENSORS];
__u8 kernel_version[VERSION_MAX_LEN];
@@ -328,6 +344,7 @@ struct armcp_info {
__u8 thermal_version[VERSION_MAX_LEN];
__u8 armcp_version[VERSION_MAX_LEN];
__le64 dram_size;
+ char card_name[CARD_NAME_MAX_LEN];
};
#endif /* ARMCP_IF_H */
diff --git a/drivers/misc/habanalabs/include/goya/goya.h b/drivers/misc/habanalabs/include/goya/goya.h
index 3f02a52ba4ce..43d241891e45 100644
--- a/drivers/misc/habanalabs/include/goya/goya.h
+++ b/drivers/misc/habanalabs/include/goya/goya.h
@@ -38,4 +38,6 @@
#define TPC_MAX_NUM 8
+#define MME_MAX_NUM 1
+
#endif /* GOYA_H */
diff --git a/drivers/misc/habanalabs/include/goya/goya_reg_map.h b/drivers/misc/habanalabs/include/goya/goya_reg_map.h
new file mode 100644
index 000000000000..cd89723c7f61
--- /dev/null
+++ b/drivers/misc/habanalabs/include/goya/goya_reg_map.h
@@ -0,0 +1,34 @@
+/* SPDX-License-Identifier: GPL-2.0
+ *
+ * Copyright 2019 HabanaLabs, Ltd.
+ * All Rights Reserved.
+ *
+ */
+
+#ifndef GOYA_REG_MAP_H_
+#define GOYA_REG_MAP_H_
+
+/*
+ * PSOC scratch-pad registers
+ */
+#define mmCPU_PQ_BASE_ADDR_LOW mmPSOC_GLOBAL_CONF_SCRATCHPAD_0
+#define mmCPU_PQ_BASE_ADDR_HIGH mmPSOC_GLOBAL_CONF_SCRATCHPAD_1
+#define mmCPU_EQ_BASE_ADDR_LOW mmPSOC_GLOBAL_CONF_SCRATCHPAD_2
+#define mmCPU_EQ_BASE_ADDR_HIGH mmPSOC_GLOBAL_CONF_SCRATCHPAD_3
+#define mmCPU_EQ_LENGTH mmPSOC_GLOBAL_CONF_SCRATCHPAD_4
+#define mmCPU_PQ_LENGTH mmPSOC_GLOBAL_CONF_SCRATCHPAD_5
+#define mmCPU_EQ_CI mmPSOC_GLOBAL_CONF_SCRATCHPAD_6
+#define mmCPU_PQ_INIT_STATUS mmPSOC_GLOBAL_CONF_SCRATCHPAD_7
+#define mmCPU_CQ_BASE_ADDR_LOW mmPSOC_GLOBAL_CONF_SCRATCHPAD_8
+#define mmCPU_CQ_BASE_ADDR_HIGH mmPSOC_GLOBAL_CONF_SCRATCHPAD_9
+#define mmCPU_CQ_LENGTH mmPSOC_GLOBAL_CONF_SCRATCHPAD_10
+#define mmUPD_STS mmPSOC_GLOBAL_CONF_SCRATCHPAD_26
+#define mmUPD_CMD mmPSOC_GLOBAL_CONF_SCRATCHPAD_27
+#define mmPREBOOT_VER_OFFSET mmPSOC_GLOBAL_CONF_SCRATCHPAD_28
+#define mmUBOOT_VER_OFFSET mmPSOC_GLOBAL_CONF_SCRATCHPAD_29
+#define mmUBOOT_OFFSET mmPSOC_GLOBAL_CONF_SCRATCHPAD_30
+#define mmBTL_ID mmPSOC_GLOBAL_CONF_SCRATCHPAD_31
+
+#define mmHW_STATE mmPSOC_GLOBAL_CONF_APP_STATUS
+
+#endif /* GOYA_REG_MAP_H_ */
diff --git a/drivers/misc/habanalabs/irq.c b/drivers/misc/habanalabs/irq.c
index 199791b57caf..fac65fbd70e8 100644
--- a/drivers/misc/habanalabs/irq.c
+++ b/drivers/misc/habanalabs/irq.c
@@ -160,7 +160,7 @@ irqreturn_t hl_irq_handler_eq(int irq, void *arg)
while (1) {
bool entry_ready =
- ((__le32_to_cpu(eq_base[eq->ci].hdr.ctl) &
+ ((le32_to_cpu(eq_base[eq->ci].hdr.ctl) &
EQ_CTL_READY_MASK) >> EQ_CTL_READY_SHIFT);
if (!entry_ready)
@@ -194,7 +194,7 @@ irqreturn_t hl_irq_handler_eq(int irq, void *arg)
skip_irq:
/* Clear EQ entry ready bit */
eq_entry->hdr.ctl =
- __cpu_to_le32(__le32_to_cpu(eq_entry->hdr.ctl) &
+ cpu_to_le32(le32_to_cpu(eq_entry->hdr.ctl) &
~EQ_CTL_READY_MASK);
eq->ci = hl_eq_inc_ptr(eq->ci);
diff --git a/drivers/misc/habanalabs/sysfs.c b/drivers/misc/habanalabs/sysfs.c
index 25eb46d29d88..4cd622b017b9 100644
--- a/drivers/misc/habanalabs/sysfs.c
+++ b/drivers/misc/habanalabs/sysfs.c
@@ -21,12 +21,12 @@ long hl_get_frequency(struct hl_device *hdev, u32 pll_index, bool curr)
memset(&pkt, 0, sizeof(pkt));
if (curr)
- pkt.ctl = __cpu_to_le32(ARMCP_PACKET_FREQUENCY_CURR_GET <<
+ pkt.ctl = cpu_to_le32(ARMCP_PACKET_FREQUENCY_CURR_GET <<
ARMCP_PKT_CTL_OPCODE_SHIFT);
else
- pkt.ctl = __cpu_to_le32(ARMCP_PACKET_FREQUENCY_GET <<
+ pkt.ctl = cpu_to_le32(ARMCP_PACKET_FREQUENCY_GET <<
ARMCP_PKT_CTL_OPCODE_SHIFT);
- pkt.pll_index = __cpu_to_le32(pll_index);
+ pkt.pll_index = cpu_to_le32(pll_index);
rc = hdev->asic_funcs->send_cpu_message(hdev, (u32 *) &pkt, sizeof(pkt),
SET_CLK_PKT_TIMEOUT, &result);
@@ -48,10 +48,10 @@ void hl_set_frequency(struct hl_device *hdev, u32 pll_index, u64 freq)
memset(&pkt, 0, sizeof(pkt));
- pkt.ctl = __cpu_to_le32(ARMCP_PACKET_FREQUENCY_SET <<
+ pkt.ctl = cpu_to_le32(ARMCP_PACKET_FREQUENCY_SET <<
ARMCP_PKT_CTL_OPCODE_SHIFT);
- pkt.pll_index = __cpu_to_le32(pll_index);
- pkt.value = __cpu_to_le64(freq);
+ pkt.pll_index = cpu_to_le32(pll_index);
+ pkt.value = cpu_to_le64(freq);
rc = hdev->asic_funcs->send_cpu_message(hdev, (u32 *) &pkt, sizeof(pkt),
SET_CLK_PKT_TIMEOUT, NULL);
@@ -70,7 +70,7 @@ u64 hl_get_max_power(struct hl_device *hdev)
memset(&pkt, 0, sizeof(pkt));
- pkt.ctl = __cpu_to_le32(ARMCP_PACKET_MAX_POWER_GET <<
+ pkt.ctl = cpu_to_le32(ARMCP_PACKET_MAX_POWER_GET <<
ARMCP_PKT_CTL_OPCODE_SHIFT);
rc = hdev->asic_funcs->send_cpu_message(hdev, (u32 *) &pkt, sizeof(pkt),
@@ -91,9 +91,9 @@ void hl_set_max_power(struct hl_device *hdev, u64 value)
memset(&pkt, 0, sizeof(pkt));
- pkt.ctl = __cpu_to_le32(ARMCP_PACKET_MAX_POWER_SET <<
+ pkt.ctl = cpu_to_le32(ARMCP_PACKET_MAX_POWER_SET <<
ARMCP_PKT_CTL_OPCODE_SHIFT);
- pkt.value = __cpu_to_le64(value);
+ pkt.value = cpu_to_le64(value);
rc = hdev->asic_funcs->send_cpu_message(hdev, (u32 *) &pkt, sizeof(pkt),
SET_PWR_PKT_TIMEOUT, NULL);
@@ -102,100 +102,6 @@ void hl_set_max_power(struct hl_device *hdev, u64 value)
dev_err(hdev->dev, "Failed to set max power, error %d\n", rc);
}
-static ssize_t pm_mng_profile_show(struct device *dev,
- struct device_attribute *attr, char *buf)
-{
- struct hl_device *hdev = dev_get_drvdata(dev);
-
- if (hl_device_disabled_or_in_reset(hdev))
- return -ENODEV;
-
- return sprintf(buf, "%s\n",
- (hdev->pm_mng_profile == PM_AUTO) ? "auto" :
- (hdev->pm_mng_profile == PM_MANUAL) ? "manual" :
- "unknown");
-}
-
-static ssize_t pm_mng_profile_store(struct device *dev,
- struct device_attribute *attr, const char *buf, size_t count)
-{
- struct hl_device *hdev = dev_get_drvdata(dev);
-
- if (hl_device_disabled_or_in_reset(hdev)) {
- count = -ENODEV;
- goto out;
- }
-
- mutex_lock(&hdev->fd_open_cnt_lock);
-
- if (atomic_read(&hdev->fd_open_cnt) > 0) {
- dev_err(hdev->dev,
- "Can't change PM profile while user process is opened on the device\n");
- count = -EPERM;
- goto unlock_mutex;
- }
-
- if (strncmp("auto", buf, strlen("auto")) == 0) {
- /* Make sure we are in LOW PLL when changing modes */
- if (hdev->pm_mng_profile == PM_MANUAL) {
- atomic_set(&hdev->curr_pll_profile, PLL_HIGH);
- hl_device_set_frequency(hdev, PLL_LOW);
- hdev->pm_mng_profile = PM_AUTO;
- }
- } else if (strncmp("manual", buf, strlen("manual")) == 0) {
- /* Make sure we are in LOW PLL when changing modes */
- if (hdev->pm_mng_profile == PM_AUTO) {
- flush_delayed_work(&hdev->work_freq);
- hdev->pm_mng_profile = PM_MANUAL;
- }
- } else {
- dev_err(hdev->dev, "value should be auto or manual\n");
- count = -EINVAL;
- goto unlock_mutex;
- }
-
-unlock_mutex:
- mutex_unlock(&hdev->fd_open_cnt_lock);
-out:
- return count;
-}
-
-static ssize_t high_pll_show(struct device *dev, struct device_attribute *attr,
- char *buf)
-{
- struct hl_device *hdev = dev_get_drvdata(dev);
-
- if (hl_device_disabled_or_in_reset(hdev))
- return -ENODEV;
-
- return sprintf(buf, "%u\n", hdev->high_pll);
-}
-
-static ssize_t high_pll_store(struct device *dev, struct device_attribute *attr,
- const char *buf, size_t count)
-{
- struct hl_device *hdev = dev_get_drvdata(dev);
- long value;
- int rc;
-
- if (hl_device_disabled_or_in_reset(hdev)) {
- count = -ENODEV;
- goto out;
- }
-
- rc = kstrtoul(buf, 0, &value);
-
- if (rc) {
- count = -EINVAL;
- goto out;
- }
-
- hdev->high_pll = value;
-
-out:
- return count;
-}
-
static ssize_t uboot_ver_show(struct device *dev, struct device_attribute *attr,
char *buf)
{
@@ -351,14 +257,6 @@ static ssize_t status_show(struct device *dev, struct device_attribute *attr,
return sprintf(buf, "%s\n", str);
}
-static ssize_t write_open_cnt_show(struct device *dev,
- struct device_attribute *attr, char *buf)
-{
- struct hl_device *hdev = dev_get_drvdata(dev);
-
- return sprintf(buf, "%d\n", hdev->user_ctx ? 1 : 0);
-}
-
static ssize_t soft_reset_cnt_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
@@ -450,18 +348,15 @@ static DEVICE_ATTR_RO(device_type);
static DEVICE_ATTR_RO(fuse_ver);
static DEVICE_ATTR_WO(hard_reset);
static DEVICE_ATTR_RO(hard_reset_cnt);
-static DEVICE_ATTR_RW(high_pll);
static DEVICE_ATTR_RO(infineon_ver);
static DEVICE_ATTR_RW(max_power);
static DEVICE_ATTR_RO(pci_addr);
-static DEVICE_ATTR_RW(pm_mng_profile);
static DEVICE_ATTR_RO(preboot_btl_ver);
static DEVICE_ATTR_WO(soft_reset);
static DEVICE_ATTR_RO(soft_reset_cnt);
static DEVICE_ATTR_RO(status);
static DEVICE_ATTR_RO(thermal_ver);
static DEVICE_ATTR_RO(uboot_ver);
-static DEVICE_ATTR_RO(write_open_cnt);
static struct bin_attribute bin_attr_eeprom = {
.attr = {.name = "eeprom", .mode = (0444)},
@@ -477,18 +372,15 @@ static struct attribute *hl_dev_attrs[] = {
&dev_attr_fuse_ver.attr,
&dev_attr_hard_reset.attr,
&dev_attr_hard_reset_cnt.attr,
- &dev_attr_high_pll.attr,
&dev_attr_infineon_ver.attr,
&dev_attr_max_power.attr,
&dev_attr_pci_addr.attr,
- &dev_attr_pm_mng_profile.attr,
&dev_attr_preboot_btl_ver.attr,
&dev_attr_soft_reset.attr,
&dev_attr_soft_reset_cnt.attr,
&dev_attr_status.attr,
&dev_attr_thermal_ver.attr,
&dev_attr_uboot_ver.attr,
- &dev_attr_write_open_cnt.attr,
NULL,
};
diff --git a/drivers/misc/lkdtm/Makefile b/drivers/misc/lkdtm/Makefile
index fb10eafe9bde..c70b3822013f 100644
--- a/drivers/misc/lkdtm/Makefile
+++ b/drivers/misc/lkdtm/Makefile
@@ -9,6 +9,7 @@ lkdtm-$(CONFIG_LKDTM) += refcount.o
lkdtm-$(CONFIG_LKDTM) += rodata_objcopy.o
lkdtm-$(CONFIG_LKDTM) += usercopy.o
lkdtm-$(CONFIG_LKDTM) += stackleak.o
+lkdtm-$(CONFIG_LKDTM) += cfi.o
KASAN_SANITIZE_stackleak.o := n
KCOV_INSTRUMENT_rodata.o := n
diff --git a/drivers/misc/lkdtm/bugs.c b/drivers/misc/lkdtm/bugs.c
index 24245ccdba72..7284a22b1a09 100644
--- a/drivers/misc/lkdtm/bugs.c
+++ b/drivers/misc/lkdtm/bugs.c
@@ -75,7 +75,12 @@ static int warn_counter;
void lkdtm_WARNING(void)
{
- WARN(1, "Warning message trigger count: %d\n", warn_counter++);
+ WARN_ON(++warn_counter);
+}
+
+void lkdtm_WARNING_MESSAGE(void)
+{
+ WARN(1, "Warning message trigger count: %d\n", ++warn_counter);
}
void lkdtm_EXCEPTION(void)
diff --git a/drivers/misc/lkdtm/cfi.c b/drivers/misc/lkdtm/cfi.c
new file mode 100644
index 000000000000..e73ebdbfa806
--- /dev/null
+++ b/drivers/misc/lkdtm/cfi.c
@@ -0,0 +1,42 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * This is for all the tests relating directly to Control Flow Integrity.
+ */
+#include "lkdtm.h"
+
+static int called_count;
+
+/* Function taking one argument, without a return value. */
+static noinline void lkdtm_increment_void(int *counter)
+{
+ (*counter)++;
+}
+
+/* Function taking one argument, returning int. */
+static noinline int lkdtm_increment_int(int *counter)
+{
+ (*counter)++;
+
+ return *counter;
+}
+/*
+ * This tries to call an indirect function with a mismatched prototype.
+ */
+void lkdtm_CFI_FORWARD_PROTO(void)
+{
+ /*
+ * Matches lkdtm_increment_void()'s prototype, but not
+ * lkdtm_increment_int()'s prototype.
+ */
+ void (*func)(int *);
+
+ pr_info("Calling matched prototype ...\n");
+ func = lkdtm_increment_void;
+ func(&called_count);
+
+ pr_info("Calling mismatched prototype ...\n");
+ func = (void *)lkdtm_increment_int;
+ func(&called_count);
+
+ pr_info("Fail: survived mismatched prototype function call!\n");
+}
diff --git a/drivers/misc/lkdtm/core.c b/drivers/misc/lkdtm/core.c
index 66ae6b2a6950..cbc4c9045a99 100644
--- a/drivers/misc/lkdtm/core.c
+++ b/drivers/misc/lkdtm/core.c
@@ -104,6 +104,7 @@ static const struct crashtype crashtypes[] = {
CRASHTYPE(PANIC),
CRASHTYPE(BUG),
CRASHTYPE(WARNING),
+ CRASHTYPE(WARNING_MESSAGE),
CRASHTYPE(EXCEPTION),
CRASHTYPE(LOOP),
CRASHTYPE(EXHAUST_STACK),
@@ -169,6 +170,7 @@ static const struct crashtype crashtypes[] = {
CRASHTYPE(USERCOPY_KERNEL),
CRASHTYPE(USERCOPY_KERNEL_DS),
CRASHTYPE(STACKLEAK_ERASING),
+ CRASHTYPE(CFI_FORWARD_PROTO),
};
diff --git a/drivers/misc/lkdtm/lkdtm.h b/drivers/misc/lkdtm/lkdtm.h
index 6a284a87a037..ab446e0bde97 100644
--- a/drivers/misc/lkdtm/lkdtm.h
+++ b/drivers/misc/lkdtm/lkdtm.h
@@ -11,6 +11,7 @@ void __init lkdtm_bugs_init(int *recur_param);
void lkdtm_PANIC(void);
void lkdtm_BUG(void);
void lkdtm_WARNING(void);
+void lkdtm_WARNING_MESSAGE(void);
void lkdtm_EXCEPTION(void);
void lkdtm_LOOP(void);
void lkdtm_EXHAUST_STACK(void);
@@ -95,4 +96,7 @@ void lkdtm_USERCOPY_KERNEL_DS(void);
/* lkdtm_stackleak.c */
void lkdtm_STACKLEAK_ERASING(void);
+/* cfi.c */
+void lkdtm_CFI_FORWARD_PROTO(void);
+
#endif
diff --git a/drivers/misc/mei/pci-me.c b/drivers/misc/mei/pci-me.c
index 541538eff8b1..d5a92c6eadb3 100644
--- a/drivers/misc/mei/pci-me.c
+++ b/drivers/misc/mei/pci-me.c
@@ -383,12 +383,11 @@ static int mei_me_pci_resume(struct device *device)
#ifdef CONFIG_PM
static int mei_me_pm_runtime_idle(struct device *device)
{
- struct pci_dev *pdev = to_pci_dev(device);
struct mei_device *dev;
- dev_dbg(&pdev->dev, "rpm: me: runtime_idle\n");
+ dev_dbg(device, "rpm: me: runtime_idle\n");
- dev = pci_get_drvdata(pdev);
+ dev = dev_get_drvdata(device);
if (!dev)
return -ENODEV;
if (mei_write_is_idle(dev))
@@ -399,13 +398,12 @@ static int mei_me_pm_runtime_idle(struct device *device)
static int mei_me_pm_runtime_suspend(struct device *device)
{
- struct pci_dev *pdev = to_pci_dev(device);
struct mei_device *dev;
int ret;
- dev_dbg(&pdev->dev, "rpm: me: runtime suspend\n");
+ dev_dbg(device, "rpm: me: runtime suspend\n");
- dev = pci_get_drvdata(pdev);
+ dev = dev_get_drvdata(device);
if (!dev)
return -ENODEV;
@@ -418,7 +416,7 @@ static int mei_me_pm_runtime_suspend(struct device *device)
mutex_unlock(&dev->device_lock);
- dev_dbg(&pdev->dev, "rpm: me: runtime suspend ret=%d\n", ret);
+ dev_dbg(device, "rpm: me: runtime suspend ret=%d\n", ret);
if (ret && ret != -EAGAIN)
schedule_work(&dev->reset_work);
@@ -428,13 +426,12 @@ static int mei_me_pm_runtime_suspend(struct device *device)
static int mei_me_pm_runtime_resume(struct device *device)
{
- struct pci_dev *pdev = to_pci_dev(device);
struct mei_device *dev;
int ret;
- dev_dbg(&pdev->dev, "rpm: me: runtime resume\n");
+ dev_dbg(device, "rpm: me: runtime resume\n");
- dev = pci_get_drvdata(pdev);
+ dev = dev_get_drvdata(device);
if (!dev)
return -ENODEV;
@@ -444,7 +441,7 @@ static int mei_me_pm_runtime_resume(struct device *device)
mutex_unlock(&dev->device_lock);
- dev_dbg(&pdev->dev, "rpm: me: runtime resume ret = %d\n", ret);
+ dev_dbg(device, "rpm: me: runtime resume ret = %d\n", ret);
if (ret)
schedule_work(&dev->reset_work);
diff --git a/drivers/misc/mei/pci-txe.c b/drivers/misc/mei/pci-txe.c
index 2e37fc2e0fa8..f1c16a587495 100644
--- a/drivers/misc/mei/pci-txe.c
+++ b/drivers/misc/mei/pci-txe.c
@@ -276,12 +276,11 @@ static int mei_txe_pci_resume(struct device *device)
#ifdef CONFIG_PM
static int mei_txe_pm_runtime_idle(struct device *device)
{
- struct pci_dev *pdev = to_pci_dev(device);
struct mei_device *dev;
- dev_dbg(&pdev->dev, "rpm: txe: runtime_idle\n");
+ dev_dbg(device, "rpm: txe: runtime_idle\n");
- dev = pci_get_drvdata(pdev);
+ dev = dev_get_drvdata(device);
if (!dev)
return -ENODEV;
if (mei_write_is_idle(dev))
@@ -291,13 +290,12 @@ static int mei_txe_pm_runtime_idle(struct device *device)
}
static int mei_txe_pm_runtime_suspend(struct device *device)
{
- struct pci_dev *pdev = to_pci_dev(device);
struct mei_device *dev;
int ret;
- dev_dbg(&pdev->dev, "rpm: txe: runtime suspend\n");
+ dev_dbg(device, "rpm: txe: runtime suspend\n");
- dev = pci_get_drvdata(pdev);
+ dev = dev_get_drvdata(device);
if (!dev)
return -ENODEV;
@@ -310,7 +308,7 @@ static int mei_txe_pm_runtime_suspend(struct device *device)
/* keep irq on we are staying in D0 */
- dev_dbg(&pdev->dev, "rpm: txe: runtime suspend ret=%d\n", ret);
+ dev_dbg(device, "rpm: txe: runtime suspend ret=%d\n", ret);
mutex_unlock(&dev->device_lock);
@@ -322,13 +320,12 @@ static int mei_txe_pm_runtime_suspend(struct device *device)
static int mei_txe_pm_runtime_resume(struct device *device)
{
- struct pci_dev *pdev = to_pci_dev(device);
struct mei_device *dev;
int ret;
- dev_dbg(&pdev->dev, "rpm: txe: runtime resume\n");
+ dev_dbg(device, "rpm: txe: runtime resume\n");
- dev = pci_get_drvdata(pdev);
+ dev = dev_get_drvdata(device);
if (!dev)
return -ENODEV;
@@ -340,7 +337,7 @@ static int mei_txe_pm_runtime_resume(struct device *device)
mutex_unlock(&dev->device_lock);
- dev_dbg(&pdev->dev, "rpm: txe: runtime resume ret = %d\n", ret);
+ dev_dbg(device, "rpm: txe: runtime resume ret = %d\n", ret);
if (ret)
schedule_work(&dev->reset_work);
diff --git a/drivers/misc/mic/card/mic_x100.c b/drivers/misc/mic/card/mic_x100.c
index 266ffb6f6c44..c8bff2916d3d 100644
--- a/drivers/misc/mic/card/mic_x100.c
+++ b/drivers/misc/mic/card/mic_x100.c
@@ -237,6 +237,9 @@ static int __init mic_probe(struct platform_device *pdev)
mdrv->dev = &pdev->dev;
snprintf(mdrv->name, sizeof(mic_driver_name), mic_driver_name);
+ /* FIXME: use dma_set_mask_and_coherent() and check result */
+ dma_coerce_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64));
+
mdev->mmio.pa = MIC_X100_MMIO_BASE;
mdev->mmio.len = MIC_X100_MMIO_LEN;
mdev->mmio.va = devm_ioremap(&pdev->dev, MIC_X100_MMIO_BASE,
@@ -282,18 +285,6 @@ static void mic_platform_shutdown(struct platform_device *pdev)
mic_remove(pdev);
}
-static u64 mic_dma_mask = DMA_BIT_MASK(64);
-
-static struct platform_device mic_platform_dev = {
- .name = mic_driver_name,
- .id = 0,
- .num_resources = 0,
- .dev = {
- .dma_mask = &mic_dma_mask,
- .coherent_dma_mask = DMA_BIT_MASK(64),
- },
-};
-
static struct platform_driver __refdata mic_platform_driver = {
.probe = mic_probe,
.remove = mic_remove,
@@ -303,6 +294,8 @@ static struct platform_driver __refdata mic_platform_driver = {
},
};
+static struct platform_device *mic_platform_dev;
+
static int __init mic_init(void)
{
int ret;
@@ -316,9 +309,12 @@ static int __init mic_init(void)
request_module("mic_x100_dma");
mic_init_card_debugfs();
- ret = platform_device_register(&mic_platform_dev);
+
+ mic_platform_dev = platform_device_register_simple(mic_driver_name,
+ 0, NULL, 0);
+ ret = PTR_ERR_OR_ZERO(mic_platform_dev);
if (ret) {
- pr_err("platform_device_register ret %d\n", ret);
+ pr_err("platform_device_register_full ret %d\n", ret);
goto cleanup_debugfs;
}
ret = platform_driver_register(&mic_platform_driver);
@@ -329,7 +325,7 @@ static int __init mic_init(void)
return ret;
device_unregister:
- platform_device_unregister(&mic_platform_dev);
+ platform_device_unregister(mic_platform_dev);
cleanup_debugfs:
mic_exit_card_debugfs();
done:
@@ -339,7 +335,7 @@ done:
static void __exit mic_exit(void)
{
platform_driver_unregister(&mic_platform_driver);
- platform_device_unregister(&mic_platform_dev);
+ platform_device_unregister(mic_platform_dev);
mic_exit_card_debugfs();
}
diff --git a/drivers/misc/mic/scif/scif_epd.h b/drivers/misc/mic/scif/scif_epd.h
index d3837f8a5ba0..0b9dfe1cc06c 100644
--- a/drivers/misc/mic/scif/scif_epd.h
+++ b/drivers/misc/mic/scif/scif_epd.h
@@ -156,9 +156,8 @@ static inline int scif_verify_epd(struct scif_endpt *ep)
static inline int scif_anon_inode_getfile(scif_epd_t epd)
{
epd->anon = anon_inode_getfile("scif", &scif_anon_fops, NULL, 0);
- if (IS_ERR(epd->anon))
- return PTR_ERR(epd->anon);
- return 0;
+
+ return PTR_ERR_OR_ZERO(epd->anon);
}
static inline void scif_anon_inode_fput(scif_epd_t epd)
diff --git a/drivers/misc/sgi-xp/xpc_uv.c b/drivers/misc/sgi-xp/xpc_uv.c
index 09e24659ef3d..98c60f11b76b 100644
--- a/drivers/misc/sgi-xp/xpc_uv.c
+++ b/drivers/misc/sgi-xp/xpc_uv.c
@@ -696,7 +696,7 @@ again:
if (gru_mq_desc == NULL) {
gru_mq_desc = kmalloc(sizeof(struct
gru_message_queue_desc),
- GFP_KERNEL);
+ GFP_ATOMIC);
if (gru_mq_desc == NULL) {
ret = xpNoMemory;
goto done;
@@ -1680,7 +1680,7 @@ xpc_received_payload_uv(struct xpc_channel *ch, void *payload)
XPC_DEACTIVATE_PARTITION(&xpc_partitions[ch->partid], ret);
}
-static struct xpc_arch_operations xpc_arch_ops_uv = {
+static const struct xpc_arch_operations xpc_arch_ops_uv = {
.setup_partitions = xpc_setup_partitions_uv,
.teardown_partitions = xpc_teardown_partitions_uv,
.process_activate_IRQ_rcvd = xpc_process_activate_IRQ_rcvd_uv,
diff --git a/drivers/misc/spear13xx_pcie_gadget.c b/drivers/misc/spear13xx_pcie_gadget.c
deleted file mode 100644
index ee120dcbb3e6..000000000000
--- a/drivers/misc/spear13xx_pcie_gadget.c
+++ /dev/null
@@ -1,797 +0,0 @@
-/*
- * drivers/misc/spear13xx_pcie_gadget.c
- *
- * Copyright (C) 2010 ST Microelectronics
- * Pratyush Anand<pratyush.anand@gmail.com>
- *
- * This file is licensed under the terms of the GNU General Public
- * License version 2. This program is licensed "as is" without any
- * warranty of any kind, whether express or implied.
- */
-
-#include <linux/device.h>
-#include <linux/clk.h>
-#include <linux/slab.h>
-#include <linux/delay.h>
-#include <linux/io.h>
-#include <linux/interrupt.h>
-#include <linux/irq.h>
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/platform_device.h>
-#include <linux/pci_regs.h>
-#include <linux/configfs.h>
-#include <mach/pcie.h>
-#include <mach/misc_regs.h>
-
-#define IN0_MEM_SIZE (200 * 1024 * 1024 - 1)
-/* In current implementation address translation is done using IN0 only.
- * So IN1 start address and IN0 end address has been kept same
-*/
-#define IN1_MEM_SIZE (0 * 1024 * 1024 - 1)
-#define IN_IO_SIZE (20 * 1024 * 1024 - 1)
-#define IN_CFG0_SIZE (12 * 1024 * 1024 - 1)
-#define IN_CFG1_SIZE (12 * 1024 * 1024 - 1)
-#define IN_MSG_SIZE (12 * 1024 * 1024 - 1)
-/* Keep default BAR size as 4K*/
-/* AORAM would be mapped by default*/
-#define INBOUND_ADDR_MASK (SPEAR13XX_SYSRAM1_SIZE - 1)
-
-#define INT_TYPE_NO_INT 0
-#define INT_TYPE_INTX 1
-#define INT_TYPE_MSI 2
-struct spear_pcie_gadget_config {
- void __iomem *base;
- void __iomem *va_app_base;
- void __iomem *va_dbi_base;
- char int_type[10];
- ulong requested_msi;
- ulong configured_msi;
- ulong bar0_size;
- ulong bar0_rw_offset;
- void __iomem *va_bar0_address;
-};
-
-struct pcie_gadget_target {
- struct configfs_subsystem subsys;
- struct spear_pcie_gadget_config config;
-};
-
-struct pcie_gadget_target_attr {
- struct configfs_attribute attr;
- ssize_t (*show)(struct spear_pcie_gadget_config *config,
- char *buf);
- ssize_t (*store)(struct spear_pcie_gadget_config *config,
- const char *buf,
- size_t count);
-};
-
-static void enable_dbi_access(struct pcie_app_reg __iomem *app_reg)
-{
- /* Enable DBI access */
- writel(readl(&app_reg->slv_armisc) | (1 << AXI_OP_DBI_ACCESS_ID),
- &app_reg->slv_armisc);
- writel(readl(&app_reg->slv_awmisc) | (1 << AXI_OP_DBI_ACCESS_ID),
- &app_reg->slv_awmisc);
-
-}
-
-static void disable_dbi_access(struct pcie_app_reg __iomem *app_reg)
-{
- /* disable DBI access */
- writel(readl(&app_reg->slv_armisc) & ~(1 << AXI_OP_DBI_ACCESS_ID),
- &app_reg->slv_armisc);
- writel(readl(&app_reg->slv_awmisc) & ~(1 << AXI_OP_DBI_ACCESS_ID),
- &app_reg->slv_awmisc);
-
-}
-
-static void spear_dbi_read_reg(struct spear_pcie_gadget_config *config,
- int where, int size, u32 *val)
-{
- struct pcie_app_reg __iomem *app_reg = config->va_app_base;
- ulong va_address;
-
- /* Enable DBI access */
- enable_dbi_access(app_reg);
-
- va_address = (ulong)config->va_dbi_base + (where & ~0x3);
-
- *val = readl(va_address);
-
- if (size == 1)
- *val = (*val >> (8 * (where & 3))) & 0xff;
- else if (size == 2)
- *val = (*val >> (8 * (where & 3))) & 0xffff;
-
- /* Disable DBI access */
- disable_dbi_access(app_reg);
-}
-
-static void spear_dbi_write_reg(struct spear_pcie_gadget_config *config,
- int where, int size, u32 val)
-{
- struct pcie_app_reg __iomem *app_reg = config->va_app_base;
- ulong va_address;
-
- /* Enable DBI access */
- enable_dbi_access(app_reg);
-
- va_address = (ulong)config->va_dbi_base + (where & ~0x3);
-
- if (size == 4)
- writel(val, va_address);
- else if (size == 2)
- writew(val, va_address + (where & 2));
- else if (size == 1)
- writeb(val, va_address + (where & 3));
-
- /* Disable DBI access */
- disable_dbi_access(app_reg);
-}
-
-#define PCI_FIND_CAP_TTL 48
-
-static int pci_find_own_next_cap_ttl(struct spear_pcie_gadget_config *config,
- u32 pos, int cap, int *ttl)
-{
- u32 id;
-
- while ((*ttl)--) {
- spear_dbi_read_reg(config, pos, 1, &pos);
- if (pos < 0x40)
- break;
- pos &= ~3;
- spear_dbi_read_reg(config, pos + PCI_CAP_LIST_ID, 1, &id);
- if (id == 0xff)
- break;
- if (id == cap)
- return pos;
- pos += PCI_CAP_LIST_NEXT;
- }
- return 0;
-}
-
-static int pci_find_own_next_cap(struct spear_pcie_gadget_config *config,
- u32 pos, int cap)
-{
- int ttl = PCI_FIND_CAP_TTL;
-
- return pci_find_own_next_cap_ttl(config, pos, cap, &ttl);
-}
-
-static int pci_find_own_cap_start(struct spear_pcie_gadget_config *config,
- u8 hdr_type)
-{
- u32 status;
-
- spear_dbi_read_reg(config, PCI_STATUS, 2, &status);
- if (!(status & PCI_STATUS_CAP_LIST))
- return 0;
-
- switch (hdr_type) {
- case PCI_HEADER_TYPE_NORMAL:
- case PCI_HEADER_TYPE_BRIDGE:
- return PCI_CAPABILITY_LIST;
- case PCI_HEADER_TYPE_CARDBUS:
- return PCI_CB_CAPABILITY_LIST;
- default:
- return 0;
- }
-
- return 0;
-}
-
-/*
- * Tell if a device supports a given PCI capability.
- * Returns the address of the requested capability structure within the
- * device's PCI configuration space or 0 in case the device does not
- * support it. Possible values for @cap:
- *
- * %PCI_CAP_ID_PM Power Management
- * %PCI_CAP_ID_AGP Accelerated Graphics Port
- * %PCI_CAP_ID_VPD Vital Product Data
- * %PCI_CAP_ID_SLOTID Slot Identification
- * %PCI_CAP_ID_MSI Message Signalled Interrupts
- * %PCI_CAP_ID_CHSWP CompactPCI HotSwap
- * %PCI_CAP_ID_PCIX PCI-X
- * %PCI_CAP_ID_EXP PCI Express
- */
-static int pci_find_own_capability(struct spear_pcie_gadget_config *config,
- int cap)
-{
- u32 pos;
- u32 hdr_type;
-
- spear_dbi_read_reg(config, PCI_HEADER_TYPE, 1, &hdr_type);
-
- pos = pci_find_own_cap_start(config, hdr_type);
- if (pos)
- pos = pci_find_own_next_cap(config, pos, cap);
-
- return pos;
-}
-
-static irqreturn_t spear_pcie_gadget_irq(int irq, void *dev_id)
-{
- return 0;
-}
-
-/*
- * configfs interfaces show/store functions
- */
-
-static struct pcie_gadget_target *to_target(struct config_item *item)
-{
- return item ?
- container_of(to_configfs_subsystem(to_config_group(item)),
- struct pcie_gadget_target, subsys) : NULL;
-}
-
-static ssize_t pcie_gadget_link_show(struct config_item *item, char *buf)
-{
- struct pcie_app_reg __iomem *app_reg = to_target(item)->va_app_base;
-
- if (readl(&app_reg->app_status_1) & ((u32)1 << XMLH_LINK_UP_ID))
- return sprintf(buf, "UP");
- else
- return sprintf(buf, "DOWN");
-}
-
-static ssize_t pcie_gadget_link_store(struct config_item *item,
- const char *buf, size_t count)
-{
- struct pcie_app_reg __iomem *app_reg = to_target(item)->va_app_base;
-
- if (sysfs_streq(buf, "UP"))
- writel(readl(&app_reg->app_ctrl_0) | (1 << APP_LTSSM_ENABLE_ID),
- &app_reg->app_ctrl_0);
- else if (sysfs_streq(buf, "DOWN"))
- writel(readl(&app_reg->app_ctrl_0)
- & ~(1 << APP_LTSSM_ENABLE_ID),
- &app_reg->app_ctrl_0);
- else
- return -EINVAL;
- return count;
-}
-
-static ssize_t pcie_gadget_int_type_show(struct config_item *item, char *buf)
-{
- return sprintf(buf, "%s", to_target(item)->int_type);
-}
-
-static ssize_t pcie_gadget_int_type_store(struct config_item *item,
- const char *buf, size_t count)
-{
- struct spear_pcie_gadget_config *config = to_target(item)
- u32 cap, vec, flags;
- ulong vector;
-
- if (sysfs_streq(buf, "INTA"))
- spear_dbi_write_reg(config, PCI_INTERRUPT_LINE, 1, 1);
-
- else if (sysfs_streq(buf, "MSI")) {
- vector = config->requested_msi;
- vec = 0;
- while (vector > 1) {
- vector /= 2;
- vec++;
- }
- spear_dbi_write_reg(config, PCI_INTERRUPT_LINE, 1, 0);
- cap = pci_find_own_capability(config, PCI_CAP_ID_MSI);
- spear_dbi_read_reg(config, cap + PCI_MSI_FLAGS, 1, &flags);
- flags &= ~PCI_MSI_FLAGS_QMASK;
- flags |= vec << 1;
- spear_dbi_write_reg(config, cap + PCI_MSI_FLAGS, 1, flags);
- } else
- return -EINVAL;
-
- strcpy(config->int_type, buf);
-
- return count;
-}
-
-static ssize_t pcie_gadget_no_of_msi_show(struct config_item *item, char *buf)
-{
- struct spear_pcie_gadget_config *config = to_target(item)
- struct pcie_app_reg __iomem *app_reg = to_target(item)->va_app_base;
- u32 cap, vec, flags;
- ulong vector;
-
- if ((readl(&app_reg->msg_status) & (1 << CFG_MSI_EN_ID))
- != (1 << CFG_MSI_EN_ID))
- vector = 0;
- else {
- cap = pci_find_own_capability(config, PCI_CAP_ID_MSI);
- spear_dbi_read_reg(config, cap + PCI_MSI_FLAGS, 1, &flags);
- flags &= ~PCI_MSI_FLAGS_QSIZE;
- vec = flags >> 4;
- vector = 1;
- while (vec--)
- vector *= 2;
- }
- config->configured_msi = vector;
-
- return sprintf(buf, "%lu", vector);
-}
-
-static ssize_t pcie_gadget_no_of_msi_store(struct config_item *item,
- const char *buf, size_t count)
-{
- int ret;
-
- ret = kstrtoul(buf, 0, &to_target(item)->requested_msi);
- if (ret)
- return ret;
-
- if (config->requested_msi > 32)
- config->requested_msi = 32;
-
- return count;
-}
-
-static ssize_t pcie_gadget_inta_store(struct config_item *item,
- const char *buf, size_t count)
-{
- struct pcie_app_reg __iomem *app_reg = to_target(item)->va_app_base;
- ulong en;
- int ret;
-
- ret = kstrtoul(buf, 0, &en);
- if (ret)
- return ret;
-
- if (en)
- writel(readl(&app_reg->app_ctrl_0) | (1 << SYS_INT_ID),
- &app_reg->app_ctrl_0);
- else
- writel(readl(&app_reg->app_ctrl_0) & ~(1 << SYS_INT_ID),
- &app_reg->app_ctrl_0);
-
- return count;
-}
-
-static ssize_t pcie_gadget_send_msi_store(struct config_item *item,
- const char *buf, size_t count)
-{
- struct spear_pcie_gadget_config *config = to_target(item)
- struct pcie_app_reg __iomem *app_reg = config->va_app_base;
- ulong vector;
- u32 ven_msi;
- int ret;
-
- ret = kstrtoul(buf, 0, &vector);
- if (ret)
- return ret;
-
- if (!config->configured_msi)
- return -EINVAL;
-
- if (vector >= config->configured_msi)
- return -EINVAL;
-
- ven_msi = readl(&app_reg->ven_msi_1);
- ven_msi &= ~VEN_MSI_FUN_NUM_MASK;
- ven_msi |= 0 << VEN_MSI_FUN_NUM_ID;
- ven_msi &= ~VEN_MSI_TC_MASK;
- ven_msi |= 0 << VEN_MSI_TC_ID;
- ven_msi &= ~VEN_MSI_VECTOR_MASK;
- ven_msi |= vector << VEN_MSI_VECTOR_ID;
-
- /* generating interrupt for msi vector */
- ven_msi |= VEN_MSI_REQ_EN;
- writel(ven_msi, &app_reg->ven_msi_1);
- udelay(1);
- ven_msi &= ~VEN_MSI_REQ_EN;
- writel(ven_msi, &app_reg->ven_msi_1);
-
- return count;
-}
-
-static ssize_t pcie_gadget_vendor_id_show(struct config_item *item, char *buf)
-{
- u32 id;
-
- spear_dbi_read_reg(to_target(item), PCI_VENDOR_ID, 2, &id);
-
- return sprintf(buf, "%x", id);
-}
-
-static ssize_t pcie_gadget_vendor_id_store(struct config_item *item,
- const char *buf, size_t count)
-{
- ulong id;
- int ret;
-
- ret = kstrtoul(buf, 0, &id);
- if (ret)
- return ret;
-
- spear_dbi_write_reg(to_target(item), PCI_VENDOR_ID, 2, id);
-
- return count;
-}
-
-static ssize_t pcie_gadget_device_id_show(struct config_item *item, char *buf)
-{
- u32 id;
-
- spear_dbi_read_reg(to_target(item), PCI_DEVICE_ID, 2, &id);
-
- return sprintf(buf, "%x", id);
-}
-
-static ssize_t pcie_gadget_device_id_store(struct config_item *item,
- const char *buf, size_t count)
-{
- ulong id;
- int ret;
-
- ret = kstrtoul(buf, 0, &id);
- if (ret)
- return ret;
-
- spear_dbi_write_reg(to_target(item), PCI_DEVICE_ID, 2, id);
-
- return count;
-}
-
-static ssize_t pcie_gadget_bar0_size_show(struct config_item *item, char *buf)
-{
- return sprintf(buf, "%lx", to_target(item)->bar0_size);
-}
-
-static ssize_t pcie_gadget_bar0_size_store(struct config_item *item,
- const char *buf, size_t count)
-{
- struct spear_pcie_gadget_config *config = to_target(item)
- ulong size;
- u32 pos, pos1;
- u32 no_of_bit = 0;
- int ret;
-
- ret = kstrtoul(buf, 0, &size);
- if (ret)
- return ret;
-
- /* min bar size is 256 */
- if (size <= 0x100)
- size = 0x100;
- /* max bar size is 1MB*/
- else if (size >= 0x100000)
- size = 0x100000;
- else {
- pos = 0;
- pos1 = 0;
- while (pos < 21) {
- pos = find_next_bit((ulong *)&size, 21, pos);
- if (pos != 21)
- pos1 = pos + 1;
- pos++;
- no_of_bit++;
- }
- if (no_of_bit == 2)
- pos1--;
-
- size = 1 << pos1;
- }
- config->bar0_size = size;
- spear_dbi_write_reg(config, PCIE_BAR0_MASK_REG, 4, size - 1);
-
- return count;
-}
-
-static ssize_t pcie_gadget_bar0_address_show(struct config_item *item,
- char *buf)
-{
- struct pcie_app_reg __iomem *app_reg = to_target(item)->va_app_base;
-
- u32 address = readl(&app_reg->pim0_mem_addr_start);
-
- return sprintf(buf, "%x", address);
-}
-
-static ssize_t pcie_gadget_bar0_address_store(struct config_item *item,
- const char *buf, size_t count)
-{
- struct spear_pcie_gadget_config *config = to_target(item)
- struct pcie_app_reg __iomem *app_reg = config->va_app_base;
- ulong address;
- int ret;
-
- ret = kstrtoul(buf, 0, &address);
- if (ret)
- return ret;
-
- address &= ~(config->bar0_size - 1);
- if (config->va_bar0_address)
- iounmap(config->va_bar0_address);
- config->va_bar0_address = ioremap(address, config->bar0_size);
- if (!config->va_bar0_address)
- return -ENOMEM;
-
- writel(address, &app_reg->pim0_mem_addr_start);
-
- return count;
-}
-
-static ssize_t pcie_gadget_bar0_rw_offset_show(struct config_item *item,
- char *buf)
-{
- return sprintf(buf, "%lx", to_target(item)->bar0_rw_offset);
-}
-
-static ssize_t pcie_gadget_bar0_rw_offset_store(struct config_item *item,
- const char *buf, size_t count)
-{
- ulong offset;
- int ret;
-
- ret = kstrtoul(buf, 0, &offset);
- if (ret)
- return ret;
-
- if (offset % 4)
- return -EINVAL;
-
- to_target(item)->bar0_rw_offset = offset;
-
- return count;
-}
-
-static ssize_t pcie_gadget_bar0_data_show(struct config_item *item, char *buf)
-{
- struct spear_pcie_gadget_config *config = to_target(item)
- ulong data;
-
- if (!config->va_bar0_address)
- return -ENOMEM;
-
- data = readl((ulong)config->va_bar0_address + config->bar0_rw_offset);
-
- return sprintf(buf, "%lx", data);
-}
-
-static ssize_t pcie_gadget_bar0_data_store(struct config_item *item,
- const char *buf, size_t count)
-{
- struct spear_pcie_gadget_config *config = to_target(item)
- ulong data;
- int ret;
-
- ret = kstrtoul(buf, 0, &data);
- if (ret)
- return ret;
-
- if (!config->va_bar0_address)
- return -ENOMEM;
-
- writel(data, (ulong)config->va_bar0_address + config->bar0_rw_offset);
-
- return count;
-}
-
-CONFIGFS_ATTR(pcie_gadget_, link);
-CONFIGFS_ATTR(pcie_gadget_, int_type);
-CONFIGFS_ATTR(pcie_gadget_, no_of_msi);
-CONFIGFS_ATTR_WO(pcie_gadget_, inta);
-CONFIGFS_ATTR_WO(pcie_gadget_, send_msi);
-CONFIGFS_ATTR(pcie_gadget_, vendor_id);
-CONFIGFS_ATTR(pcie_gadget_, device_id);
-CONFIGFS_ATTR(pcie_gadget_, bar0_size);
-CONFIGFS_ATTR(pcie_gadget_, bar0_address);
-CONFIGFS_ATTR(pcie_gadget_, bar0_rw_offset);
-CONFIGFS_ATTR(pcie_gadget_, bar0_data);
-
-static struct configfs_attribute *pcie_gadget_target_attrs[] = {
- &pcie_gadget_attr_link,
- &pcie_gadget_attr_int_type,
- &pcie_gadget_attr_no_of_msi,
- &pcie_gadget_attr_inta,
- &pcie_gadget_attr_send_msi,
- &pcie_gadget_attr_vendor_id,
- &pcie_gadget_attr_device_id,
- &pcie_gadget_attr_bar0_size,
- &pcie_gadget_attr_bar0_address,
- &pcie_gadget_attr_bar0_rw_offset,
- &pcie_gadget_attr_bar0_data,
- NULL,
-};
-
-static struct config_item_type pcie_gadget_target_type = {
- .ct_attrs = pcie_gadget_target_attrs,
- .ct_owner = THIS_MODULE,
-};
-
-static void spear13xx_pcie_device_init(struct spear_pcie_gadget_config *config)
-{
- struct pcie_app_reg __iomem *app_reg = config->va_app_base;
-
- /*setup registers for outbound translation */
-
- writel(config->base, &app_reg->in0_mem_addr_start);
- writel(app_reg->in0_mem_addr_start + IN0_MEM_SIZE,
- &app_reg->in0_mem_addr_limit);
- writel(app_reg->in0_mem_addr_limit + 1, &app_reg->in1_mem_addr_start);
- writel(app_reg->in1_mem_addr_start + IN1_MEM_SIZE,
- &app_reg->in1_mem_addr_limit);
- writel(app_reg->in1_mem_addr_limit + 1, &app_reg->in_io_addr_start);
- writel(app_reg->in_io_addr_start + IN_IO_SIZE,
- &app_reg->in_io_addr_limit);
- writel(app_reg->in_io_addr_limit + 1, &app_reg->in_cfg0_addr_start);
- writel(app_reg->in_cfg0_addr_start + IN_CFG0_SIZE,
- &app_reg->in_cfg0_addr_limit);
- writel(app_reg->in_cfg0_addr_limit + 1, &app_reg->in_cfg1_addr_start);
- writel(app_reg->in_cfg1_addr_start + IN_CFG1_SIZE,
- &app_reg->in_cfg1_addr_limit);
- writel(app_reg->in_cfg1_addr_limit + 1, &app_reg->in_msg_addr_start);
- writel(app_reg->in_msg_addr_start + IN_MSG_SIZE,
- &app_reg->in_msg_addr_limit);
-
- writel(app_reg->in0_mem_addr_start, &app_reg->pom0_mem_addr_start);
- writel(app_reg->in1_mem_addr_start, &app_reg->pom1_mem_addr_start);
- writel(app_reg->in_io_addr_start, &app_reg->pom_io_addr_start);
-
- /*setup registers for inbound translation */
-
- /* Keep AORAM mapped at BAR0 as default */
- config->bar0_size = INBOUND_ADDR_MASK + 1;
- spear_dbi_write_reg(config, PCIE_BAR0_MASK_REG, 4, INBOUND_ADDR_MASK);
- spear_dbi_write_reg(config, PCI_BASE_ADDRESS_0, 4, 0xC);
- config->va_bar0_address = ioremap(SPEAR13XX_SYSRAM1_BASE,
- config->bar0_size);
-
- writel(SPEAR13XX_SYSRAM1_BASE, &app_reg->pim0_mem_addr_start);
- writel(0, &app_reg->pim1_mem_addr_start);
- writel(INBOUND_ADDR_MASK + 1, &app_reg->mem0_addr_offset_limit);
-
- writel(0x0, &app_reg->pim_io_addr_start);
- writel(0x0, &app_reg->pim_io_addr_start);
- writel(0x0, &app_reg->pim_rom_addr_start);
-
- writel(DEVICE_TYPE_EP | (1 << MISCTRL_EN_ID)
- | ((u32)1 << REG_TRANSLATION_ENABLE),
- &app_reg->app_ctrl_0);
- /* disable all rx interrupts */
- writel(0, &app_reg->int_mask);
-
- /* Select INTA as default*/
- spear_dbi_write_reg(config, PCI_INTERRUPT_LINE, 1, 1);
-}
-
-static int spear_pcie_gadget_probe(struct platform_device *pdev)
-{
- struct resource *res0, *res1;
- unsigned int status = 0;
- int irq;
- struct clk *clk;
- static struct pcie_gadget_target *target;
- struct spear_pcie_gadget_config *config;
- struct config_item *cg_item;
- struct configfs_subsystem *subsys;
-
- target = devm_kzalloc(&pdev->dev, sizeof(*target), GFP_KERNEL);
- if (!target) {
- dev_err(&pdev->dev, "out of memory\n");
- return -ENOMEM;
- }
-
- cg_item = &target->subsys.su_group.cg_item;
- sprintf(cg_item->ci_namebuf, "pcie_gadget.%d", pdev->id);
- cg_item->ci_type = &pcie_gadget_target_type;
- config = &target->config;
-
- /* get resource for application registers*/
- res0 = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- config->va_app_base = devm_ioremap_resource(&pdev->dev, res0);
- if (IS_ERR(config->va_app_base)) {
- dev_err(&pdev->dev, "ioremap fail\n");
- return PTR_ERR(config->va_app_base);
- }
-
- /* get resource for dbi registers*/
- res1 = platform_get_resource(pdev, IORESOURCE_MEM, 1);
- config->base = (void __iomem *)res1->start;
-
- config->va_dbi_base = devm_ioremap_resource(&pdev->dev, res1);
- if (IS_ERR(config->va_dbi_base)) {
- dev_err(&pdev->dev, "ioremap fail\n");
- return PTR_ERR(config->va_dbi_base);
- }
-
- platform_set_drvdata(pdev, target);
-
- irq = platform_get_irq(pdev, 0);
- if (irq < 0) {
- dev_err(&pdev->dev, "no update irq?\n");
- return irq;
- }
-
- status = devm_request_irq(&pdev->dev, irq, spear_pcie_gadget_irq,
- 0, pdev->name, NULL);
- if (status) {
- dev_err(&pdev->dev,
- "pcie gadget interrupt IRQ%d already claimed\n", irq);
- return status;
- }
-
- /* Register configfs hooks */
- subsys = &target->subsys;
- config_group_init(&subsys->su_group);
- mutex_init(&subsys->su_mutex);
- status = configfs_register_subsystem(subsys);
- if (status)
- return status;
-
- /*
- * init basic pcie application registers
- * do not enable clock if it is PCIE0.Ideally , all controller should
- * have been independent from others with respect to clock. But PCIE1
- * and 2 depends on PCIE0.So PCIE0 clk is provided during board init.
- */
- if (pdev->id == 1) {
- /*
- * Ideally CFG Clock should have been also enabled here. But
- * it is done currently during board init routne
- */
- clk = clk_get_sys("pcie1", NULL);
- if (IS_ERR(clk)) {
- pr_err("%s:couldn't get clk for pcie1\n", __func__);
- return PTR_ERR(clk);
- }
- status = clk_enable(clk);
- if (status) {
- pr_err("%s:couldn't enable clk for pcie1\n", __func__);
- return status;
- }
- } else if (pdev->id == 2) {
- /*
- * Ideally CFG Clock should have been also enabled here. But
- * it is done currently during board init routne
- */
- clk = clk_get_sys("pcie2", NULL);
- if (IS_ERR(clk)) {
- pr_err("%s:couldn't get clk for pcie2\n", __func__);
- return PTR_ERR(clk);
- }
- status = clk_enable(clk);
- if (status) {
- pr_err("%s:couldn't enable clk for pcie2\n", __func__);
- return status;
- }
- }
- spear13xx_pcie_device_init(config);
-
- return 0;
-}
-
-static int spear_pcie_gadget_remove(struct platform_device *pdev)
-{
- static struct pcie_gadget_target *target;
-
- target = platform_get_drvdata(pdev);
-
- configfs_unregister_subsystem(&target->subsys);
-
- return 0;
-}
-
-static void spear_pcie_gadget_shutdown(struct platform_device *pdev)
-{
-}
-
-static struct platform_driver spear_pcie_gadget_driver = {
- .probe = spear_pcie_gadget_probe,
- .remove = spear_pcie_gadget_remove,
- .shutdown = spear_pcie_gadget_shutdown,
- .driver = {
- .name = "pcie-gadget-spear",
- .bus = &platform_bus_type
- },
-};
-
-module_platform_driver(spear_pcie_gadget_driver);
-
-MODULE_ALIAS("platform:pcie-gadget-spear");
-MODULE_AUTHOR("Pratyush Anand");
-MODULE_LICENSE("GPL");
diff --git a/drivers/misc/xilinx_sdfec.c b/drivers/misc/xilinx_sdfec.c
index f257d3812110..11835969e982 100644
--- a/drivers/misc/xilinx_sdfec.c
+++ b/drivers/misc/xilinx_sdfec.c
@@ -19,11 +19,150 @@
#include <linux/poll.h>
#include <linux/slab.h>
#include <linux/clk.h>
+#include <linux/compat.h>
+#include <linux/highmem.h>
+
+#include <uapi/misc/xilinx_sdfec.h>
#define DEV_NAME_LEN 12
-static struct idr dev_idr;
-static struct mutex dev_idr_lock;
+static DEFINE_IDA(dev_nrs);
+
+/* Xilinx SDFEC Register Map */
+/* CODE_WRI_PROTECT Register */
+#define XSDFEC_CODE_WR_PROTECT_ADDR (0x4)
+
+/* ACTIVE Register */
+#define XSDFEC_ACTIVE_ADDR (0x8)
+#define XSDFEC_IS_ACTIVITY_SET (0x1)
+
+/* AXIS_WIDTH Register */
+#define XSDFEC_AXIS_WIDTH_ADDR (0xC)
+#define XSDFEC_AXIS_DOUT_WORDS_LSB (5)
+#define XSDFEC_AXIS_DOUT_WIDTH_LSB (3)
+#define XSDFEC_AXIS_DIN_WORDS_LSB (2)
+#define XSDFEC_AXIS_DIN_WIDTH_LSB (0)
+
+/* AXIS_ENABLE Register */
+#define XSDFEC_AXIS_ENABLE_ADDR (0x10)
+#define XSDFEC_AXIS_OUT_ENABLE_MASK (0x38)
+#define XSDFEC_AXIS_IN_ENABLE_MASK (0x7)
+#define XSDFEC_AXIS_ENABLE_MASK \
+ (XSDFEC_AXIS_OUT_ENABLE_MASK | XSDFEC_AXIS_IN_ENABLE_MASK)
+
+/* FEC_CODE Register */
+#define XSDFEC_FEC_CODE_ADDR (0x14)
+
+/* ORDER Register Map */
+#define XSDFEC_ORDER_ADDR (0x18)
+
+/* Interrupt Status Register */
+#define XSDFEC_ISR_ADDR (0x1C)
+/* Interrupt Status Register Bit Mask */
+#define XSDFEC_ISR_MASK (0x3F)
+
+/* Write Only - Interrupt Enable Register */
+#define XSDFEC_IER_ADDR (0x20)
+/* Write Only - Interrupt Disable Register */
+#define XSDFEC_IDR_ADDR (0x24)
+/* Read Only - Interrupt Mask Register */
+#define XSDFEC_IMR_ADDR (0x28)
+
+/* ECC Interrupt Status Register */
+#define XSDFEC_ECC_ISR_ADDR (0x2C)
+/* Single Bit Errors */
+#define XSDFEC_ECC_ISR_SBE_MASK (0x7FF)
+/* PL Initialize Single Bit Errors */
+#define XSDFEC_PL_INIT_ECC_ISR_SBE_MASK (0x3C00000)
+/* Multi Bit Errors */
+#define XSDFEC_ECC_ISR_MBE_MASK (0x3FF800)
+/* PL Initialize Multi Bit Errors */
+#define XSDFEC_PL_INIT_ECC_ISR_MBE_MASK (0x3C000000)
+/* Multi Bit Error to Event Shift */
+#define XSDFEC_ECC_ISR_MBE_TO_EVENT_SHIFT (11)
+/* PL Initialize Multi Bit Error to Event Shift */
+#define XSDFEC_PL_INIT_ECC_ISR_MBE_TO_EVENT_SHIFT (4)
+/* ECC Interrupt Status Bit Mask */
+#define XSDFEC_ECC_ISR_MASK (XSDFEC_ECC_ISR_SBE_MASK | XSDFEC_ECC_ISR_MBE_MASK)
+/* ECC Interrupt Status PL Initialize Bit Mask */
+#define XSDFEC_PL_INIT_ECC_ISR_MASK \
+ (XSDFEC_PL_INIT_ECC_ISR_SBE_MASK | XSDFEC_PL_INIT_ECC_ISR_MBE_MASK)
+/* ECC Interrupt Status All Bit Mask */
+#define XSDFEC_ALL_ECC_ISR_MASK \
+ (XSDFEC_ECC_ISR_MASK | XSDFEC_PL_INIT_ECC_ISR_MASK)
+/* ECC Interrupt Status Single Bit Errors Mask */
+#define XSDFEC_ALL_ECC_ISR_SBE_MASK \
+ (XSDFEC_ECC_ISR_SBE_MASK | XSDFEC_PL_INIT_ECC_ISR_SBE_MASK)
+/* ECC Interrupt Status Multi Bit Errors Mask */
+#define XSDFEC_ALL_ECC_ISR_MBE_MASK \
+ (XSDFEC_ECC_ISR_MBE_MASK | XSDFEC_PL_INIT_ECC_ISR_MBE_MASK)
+
+/* Write Only - ECC Interrupt Enable Register */
+#define XSDFEC_ECC_IER_ADDR (0x30)
+/* Write Only - ECC Interrupt Disable Register */
+#define XSDFEC_ECC_IDR_ADDR (0x34)
+/* Read Only - ECC Interrupt Mask Register */
+#define XSDFEC_ECC_IMR_ADDR (0x38)
+
+/* BYPASS Register */
+#define XSDFEC_BYPASS_ADDR (0x3C)
+
+/* Turbo Code Register */
+#define XSDFEC_TURBO_ADDR (0x100)
+#define XSDFEC_TURBO_SCALE_MASK (0xFFF)
+#define XSDFEC_TURBO_SCALE_BIT_POS (8)
+#define XSDFEC_TURBO_SCALE_MAX (15)
+
+/* REG0 Register */
+#define XSDFEC_LDPC_CODE_REG0_ADDR_BASE (0x2000)
+#define XSDFEC_LDPC_CODE_REG0_ADDR_HIGH (0x27F0)
+#define XSDFEC_REG0_N_MIN (4)
+#define XSDFEC_REG0_N_MAX (32768)
+#define XSDFEC_REG0_N_MUL_P (256)
+#define XSDFEC_REG0_N_LSB (0)
+#define XSDFEC_REG0_K_MIN (2)
+#define XSDFEC_REG0_K_MAX (32766)
+#define XSDFEC_REG0_K_MUL_P (256)
+#define XSDFEC_REG0_K_LSB (16)
+
+/* REG1 Register */
+#define XSDFEC_LDPC_CODE_REG1_ADDR_BASE (0x2004)
+#define XSDFEC_LDPC_CODE_REG1_ADDR_HIGH (0x27f4)
+#define XSDFEC_REG1_PSIZE_MIN (2)
+#define XSDFEC_REG1_PSIZE_MAX (512)
+#define XSDFEC_REG1_NO_PACKING_MASK (0x400)
+#define XSDFEC_REG1_NO_PACKING_LSB (10)
+#define XSDFEC_REG1_NM_MASK (0xFF800)
+#define XSDFEC_REG1_NM_LSB (11)
+#define XSDFEC_REG1_BYPASS_MASK (0x100000)
+
+/* REG2 Register */
+#define XSDFEC_LDPC_CODE_REG2_ADDR_BASE (0x2008)
+#define XSDFEC_LDPC_CODE_REG2_ADDR_HIGH (0x27f8)
+#define XSDFEC_REG2_NLAYERS_MIN (1)
+#define XSDFEC_REG2_NLAYERS_MAX (256)
+#define XSDFEC_REG2_NNMQC_MASK (0xFFE00)
+#define XSDFEC_REG2_NMQC_LSB (9)
+#define XSDFEC_REG2_NORM_TYPE_MASK (0x100000)
+#define XSDFEC_REG2_NORM_TYPE_LSB (20)
+#define XSDFEC_REG2_SPECIAL_QC_MASK (0x200000)
+#define XSDFEC_REG2_SPEICAL_QC_LSB (21)
+#define XSDFEC_REG2_NO_FINAL_PARITY_MASK (0x400000)
+#define XSDFEC_REG2_NO_FINAL_PARITY_LSB (22)
+#define XSDFEC_REG2_MAX_SCHEDULE_MASK (0x1800000)
+#define XSDFEC_REG2_MAX_SCHEDULE_LSB (23)
+
+/* REG3 Register */
+#define XSDFEC_LDPC_CODE_REG3_ADDR_BASE (0x200C)
+#define XSDFEC_LDPC_CODE_REG3_ADDR_HIGH (0x27FC)
+#define XSDFEC_REG3_LA_OFF_LSB (8)
+#define XSDFEC_REG3_QC_OFF_LSB (16)
+
+#define XSDFEC_LDPC_REG_JUMP (0x10)
+#define XSDFEC_REG_WIDTH_JUMP (4)
+
+/* The maximum number of pinned pages */
+#define MAX_NUM_PAGES ((XSDFEC_QC_TABLE_DEPTH / PAGE_SIZE) + 1)
/**
* struct xsdfec_clks - For managing SD-FEC clocks
@@ -49,31 +188,1043 @@ struct xsdfec_clks {
/**
* struct xsdfec_dev - Driver data for SDFEC
- * @regs: device physical base address
- * @dev: pointer to device struct
* @miscdev: Misc device handle
- * @error_data_lock: Error counter and states spinlock
* @clks: Clocks managed by the SDFEC driver
+ * @waitq: Driver wait queue
+ * @config: Configuration of the SDFEC device
* @dev_name: Device name
+ * @flags: spinlock flags
+ * @regs: device physical base address
+ * @dev: pointer to device struct
+ * @state: State of the SDFEC device
+ * @error_data_lock: Error counter and states spinlock
* @dev_id: Device ID
+ * @isr_err_count: Count of ISR errors
+ * @cecc_count: Count of Correctable ECC errors (SBE)
+ * @uecc_count: Count of Uncorrectable ECC errors (MBE)
+ * @irq: IRQ number
+ * @state_updated: indicates State updated by interrupt handler
+ * @stats_updated: indicates Stats updated by interrupt handler
+ * @intr_enabled: indicates IRQ enabled
*
* This structure contains necessary state for SDFEC driver to operate
*/
struct xsdfec_dev {
+ struct miscdevice miscdev;
+ struct xsdfec_clks clks;
+ wait_queue_head_t waitq;
+ struct xsdfec_config config;
+ char dev_name[DEV_NAME_LEN];
+ unsigned long flags;
void __iomem *regs;
struct device *dev;
- struct miscdevice miscdev;
+ enum xsdfec_state state;
/* Spinlock to protect state_updated and stats_updated */
spinlock_t error_data_lock;
- struct xsdfec_clks clks;
- char dev_name[DEV_NAME_LEN];
int dev_id;
+ u32 isr_err_count;
+ u32 cecc_count;
+ u32 uecc_count;
+ int irq;
+ bool state_updated;
+ bool stats_updated;
+ bool intr_enabled;
};
+static inline void xsdfec_regwrite(struct xsdfec_dev *xsdfec, u32 addr,
+ u32 value)
+{
+ dev_dbg(xsdfec->dev, "Writing 0x%x to offset 0x%x", value, addr);
+ iowrite32(value, xsdfec->regs + addr);
+}
+
+static inline u32 xsdfec_regread(struct xsdfec_dev *xsdfec, u32 addr)
+{
+ u32 rval;
+
+ rval = ioread32(xsdfec->regs + addr);
+ dev_dbg(xsdfec->dev, "Read value = 0x%x from offset 0x%x", rval, addr);
+ return rval;
+}
+
+static void update_bool_config_from_reg(struct xsdfec_dev *xsdfec,
+ u32 reg_offset, u32 bit_num,
+ char *config_value)
+{
+ u32 reg_val;
+ u32 bit_mask = 1 << bit_num;
+
+ reg_val = xsdfec_regread(xsdfec, reg_offset);
+ *config_value = (reg_val & bit_mask) > 0;
+}
+
+static void update_config_from_hw(struct xsdfec_dev *xsdfec)
+{
+ u32 reg_value;
+ bool sdfec_started;
+
+ /* Update the Order */
+ reg_value = xsdfec_regread(xsdfec, XSDFEC_ORDER_ADDR);
+ xsdfec->config.order = reg_value;
+
+ update_bool_config_from_reg(xsdfec, XSDFEC_BYPASS_ADDR,
+ 0, /* Bit Number, maybe change to mask */
+ &xsdfec->config.bypass);
+
+ update_bool_config_from_reg(xsdfec, XSDFEC_CODE_WR_PROTECT_ADDR,
+ 0, /* Bit Number */
+ &xsdfec->config.code_wr_protect);
+
+ reg_value = xsdfec_regread(xsdfec, XSDFEC_IMR_ADDR);
+ xsdfec->config.irq.enable_isr = (reg_value & XSDFEC_ISR_MASK) > 0;
+
+ reg_value = xsdfec_regread(xsdfec, XSDFEC_ECC_IMR_ADDR);
+ xsdfec->config.irq.enable_ecc_isr =
+ (reg_value & XSDFEC_ECC_ISR_MASK) > 0;
+
+ reg_value = xsdfec_regread(xsdfec, XSDFEC_AXIS_ENABLE_ADDR);
+ sdfec_started = (reg_value & XSDFEC_AXIS_IN_ENABLE_MASK) > 0;
+ if (sdfec_started)
+ xsdfec->state = XSDFEC_STARTED;
+ else
+ xsdfec->state = XSDFEC_STOPPED;
+}
+
+static int xsdfec_get_status(struct xsdfec_dev *xsdfec, void __user *arg)
+{
+ struct xsdfec_status status;
+ int err;
+
+ memset(&status, 0, sizeof(status));
+ spin_lock_irqsave(&xsdfec->error_data_lock, xsdfec->flags);
+ status.state = xsdfec->state;
+ xsdfec->state_updated = false;
+ spin_unlock_irqrestore(&xsdfec->error_data_lock, xsdfec->flags);
+ status.activity = (xsdfec_regread(xsdfec, XSDFEC_ACTIVE_ADDR) &
+ XSDFEC_IS_ACTIVITY_SET);
+
+ err = copy_to_user(arg, &status, sizeof(status));
+ if (err)
+ err = -EFAULT;
+
+ return err;
+}
+
+static int xsdfec_get_config(struct xsdfec_dev *xsdfec, void __user *arg)
+{
+ int err;
+
+ err = copy_to_user(arg, &xsdfec->config, sizeof(xsdfec->config));
+ if (err)
+ err = -EFAULT;
+
+ return err;
+}
+
+static int xsdfec_isr_enable(struct xsdfec_dev *xsdfec, bool enable)
+{
+ u32 mask_read;
+
+ if (enable) {
+ /* Enable */
+ xsdfec_regwrite(xsdfec, XSDFEC_IER_ADDR, XSDFEC_ISR_MASK);
+ mask_read = xsdfec_regread(xsdfec, XSDFEC_IMR_ADDR);
+ if (mask_read & XSDFEC_ISR_MASK) {
+ dev_dbg(xsdfec->dev,
+ "SDFEC enabling irq with IER failed");
+ return -EIO;
+ }
+ } else {
+ /* Disable */
+ xsdfec_regwrite(xsdfec, XSDFEC_IDR_ADDR, XSDFEC_ISR_MASK);
+ mask_read = xsdfec_regread(xsdfec, XSDFEC_IMR_ADDR);
+ if ((mask_read & XSDFEC_ISR_MASK) != XSDFEC_ISR_MASK) {
+ dev_dbg(xsdfec->dev,
+ "SDFEC disabling irq with IDR failed");
+ return -EIO;
+ }
+ }
+ return 0;
+}
+
+static int xsdfec_ecc_isr_enable(struct xsdfec_dev *xsdfec, bool enable)
+{
+ u32 mask_read;
+
+ if (enable) {
+ /* Enable */
+ xsdfec_regwrite(xsdfec, XSDFEC_ECC_IER_ADDR,
+ XSDFEC_ALL_ECC_ISR_MASK);
+ mask_read = xsdfec_regread(xsdfec, XSDFEC_ECC_IMR_ADDR);
+ if (mask_read & XSDFEC_ALL_ECC_ISR_MASK) {
+ dev_dbg(xsdfec->dev,
+ "SDFEC enabling ECC irq with ECC IER failed");
+ return -EIO;
+ }
+ } else {
+ /* Disable */
+ xsdfec_regwrite(xsdfec, XSDFEC_ECC_IDR_ADDR,
+ XSDFEC_ALL_ECC_ISR_MASK);
+ mask_read = xsdfec_regread(xsdfec, XSDFEC_ECC_IMR_ADDR);
+ if (!(((mask_read & XSDFEC_ALL_ECC_ISR_MASK) ==
+ XSDFEC_ECC_ISR_MASK) ||
+ ((mask_read & XSDFEC_ALL_ECC_ISR_MASK) ==
+ XSDFEC_PL_INIT_ECC_ISR_MASK))) {
+ dev_dbg(xsdfec->dev,
+ "SDFEC disable ECC irq with ECC IDR failed");
+ return -EIO;
+ }
+ }
+ return 0;
+}
+
+static int xsdfec_set_irq(struct xsdfec_dev *xsdfec, void __user *arg)
+{
+ struct xsdfec_irq irq;
+ int err;
+ int isr_err;
+ int ecc_err;
+
+ err = copy_from_user(&irq, arg, sizeof(irq));
+ if (err)
+ return -EFAULT;
+
+ /* Setup tlast related IRQ */
+ isr_err = xsdfec_isr_enable(xsdfec, irq.enable_isr);
+ if (!isr_err)
+ xsdfec->config.irq.enable_isr = irq.enable_isr;
+
+ /* Setup ECC related IRQ */
+ ecc_err = xsdfec_ecc_isr_enable(xsdfec, irq.enable_ecc_isr);
+ if (!ecc_err)
+ xsdfec->config.irq.enable_ecc_isr = irq.enable_ecc_isr;
+
+ if (isr_err < 0 || ecc_err < 0)
+ err = -EIO;
+
+ return err;
+}
+
+static int xsdfec_set_turbo(struct xsdfec_dev *xsdfec, void __user *arg)
+{
+ struct xsdfec_turbo turbo;
+ int err;
+ u32 turbo_write;
+
+ err = copy_from_user(&turbo, arg, sizeof(turbo));
+ if (err)
+ return -EFAULT;
+
+ if (turbo.alg >= XSDFEC_TURBO_ALG_MAX)
+ return -EINVAL;
+
+ if (turbo.scale > XSDFEC_TURBO_SCALE_MAX)
+ return -EINVAL;
+
+ /* Check to see what device tree says about the FEC codes */
+ if (xsdfec->config.code == XSDFEC_LDPC_CODE)
+ return -EIO;
+
+ turbo_write = ((turbo.scale & XSDFEC_TURBO_SCALE_MASK)
+ << XSDFEC_TURBO_SCALE_BIT_POS) |
+ turbo.alg;
+ xsdfec_regwrite(xsdfec, XSDFEC_TURBO_ADDR, turbo_write);
+ return err;
+}
+
+static int xsdfec_get_turbo(struct xsdfec_dev *xsdfec, void __user *arg)
+{
+ u32 reg_value;
+ struct xsdfec_turbo turbo_params;
+ int err;
+
+ if (xsdfec->config.code == XSDFEC_LDPC_CODE)
+ return -EIO;
+
+ memset(&turbo_params, 0, sizeof(turbo_params));
+ reg_value = xsdfec_regread(xsdfec, XSDFEC_TURBO_ADDR);
+
+ turbo_params.scale = (reg_value & XSDFEC_TURBO_SCALE_MASK) >>
+ XSDFEC_TURBO_SCALE_BIT_POS;
+ turbo_params.alg = reg_value & 0x1;
+
+ err = copy_to_user(arg, &turbo_params, sizeof(turbo_params));
+ if (err)
+ err = -EFAULT;
+
+ return err;
+}
+
+static int xsdfec_reg0_write(struct xsdfec_dev *xsdfec, u32 n, u32 k, u32 psize,
+ u32 offset)
+{
+ u32 wdata;
+
+ if (n < XSDFEC_REG0_N_MIN || n > XSDFEC_REG0_N_MAX || psize == 0 ||
+ (n > XSDFEC_REG0_N_MUL_P * psize) || n <= k || ((n % psize) != 0)) {
+ dev_dbg(xsdfec->dev, "N value is not in range");
+ return -EINVAL;
+ }
+ n <<= XSDFEC_REG0_N_LSB;
+
+ if (k < XSDFEC_REG0_K_MIN || k > XSDFEC_REG0_K_MAX ||
+ (k > XSDFEC_REG0_K_MUL_P * psize) || ((k % psize) != 0)) {
+ dev_dbg(xsdfec->dev, "K value is not in range");
+ return -EINVAL;
+ }
+ k = k << XSDFEC_REG0_K_LSB;
+ wdata = k | n;
+
+ if (XSDFEC_LDPC_CODE_REG0_ADDR_BASE + (offset * XSDFEC_LDPC_REG_JUMP) >
+ XSDFEC_LDPC_CODE_REG0_ADDR_HIGH) {
+ dev_dbg(xsdfec->dev, "Writing outside of LDPC reg0 space 0x%x",
+ XSDFEC_LDPC_CODE_REG0_ADDR_BASE +
+ (offset * XSDFEC_LDPC_REG_JUMP));
+ return -EINVAL;
+ }
+ xsdfec_regwrite(xsdfec,
+ XSDFEC_LDPC_CODE_REG0_ADDR_BASE +
+ (offset * XSDFEC_LDPC_REG_JUMP),
+ wdata);
+ return 0;
+}
+
+static int xsdfec_reg1_write(struct xsdfec_dev *xsdfec, u32 psize,
+ u32 no_packing, u32 nm, u32 offset)
+{
+ u32 wdata;
+
+ if (psize < XSDFEC_REG1_PSIZE_MIN || psize > XSDFEC_REG1_PSIZE_MAX) {
+ dev_dbg(xsdfec->dev, "Psize is not in range");
+ return -EINVAL;
+ }
+
+ if (no_packing != 0 && no_packing != 1)
+ dev_dbg(xsdfec->dev, "No-packing bit register invalid");
+ no_packing = ((no_packing << XSDFEC_REG1_NO_PACKING_LSB) &
+ XSDFEC_REG1_NO_PACKING_MASK);
+
+ if (nm & ~(XSDFEC_REG1_NM_MASK >> XSDFEC_REG1_NM_LSB))
+ dev_dbg(xsdfec->dev, "NM is beyond 10 bits");
+ nm = (nm << XSDFEC_REG1_NM_LSB) & XSDFEC_REG1_NM_MASK;
+
+ wdata = nm | no_packing | psize;
+ if (XSDFEC_LDPC_CODE_REG1_ADDR_BASE + (offset * XSDFEC_LDPC_REG_JUMP) >
+ XSDFEC_LDPC_CODE_REG1_ADDR_HIGH) {
+ dev_dbg(xsdfec->dev, "Writing outside of LDPC reg1 space 0x%x",
+ XSDFEC_LDPC_CODE_REG1_ADDR_BASE +
+ (offset * XSDFEC_LDPC_REG_JUMP));
+ return -EINVAL;
+ }
+ xsdfec_regwrite(xsdfec,
+ XSDFEC_LDPC_CODE_REG1_ADDR_BASE +
+ (offset * XSDFEC_LDPC_REG_JUMP),
+ wdata);
+ return 0;
+}
+
+static int xsdfec_reg2_write(struct xsdfec_dev *xsdfec, u32 nlayers, u32 nmqc,
+ u32 norm_type, u32 special_qc, u32 no_final_parity,
+ u32 max_schedule, u32 offset)
+{
+ u32 wdata;
+
+ if (nlayers < XSDFEC_REG2_NLAYERS_MIN ||
+ nlayers > XSDFEC_REG2_NLAYERS_MAX) {
+ dev_dbg(xsdfec->dev, "Nlayers is not in range");
+ return -EINVAL;
+ }
+
+ if (nmqc & ~(XSDFEC_REG2_NNMQC_MASK >> XSDFEC_REG2_NMQC_LSB))
+ dev_dbg(xsdfec->dev, "NMQC exceeds 11 bits");
+ nmqc = (nmqc << XSDFEC_REG2_NMQC_LSB) & XSDFEC_REG2_NNMQC_MASK;
+
+ if (norm_type > 1)
+ dev_dbg(xsdfec->dev, "Norm type is invalid");
+ norm_type = ((norm_type << XSDFEC_REG2_NORM_TYPE_LSB) &
+ XSDFEC_REG2_NORM_TYPE_MASK);
+ if (special_qc > 1)
+ dev_dbg(xsdfec->dev, "Special QC in invalid");
+ special_qc = ((special_qc << XSDFEC_REG2_SPEICAL_QC_LSB) &
+ XSDFEC_REG2_SPECIAL_QC_MASK);
+
+ if (no_final_parity > 1)
+ dev_dbg(xsdfec->dev, "No final parity check invalid");
+ no_final_parity =
+ ((no_final_parity << XSDFEC_REG2_NO_FINAL_PARITY_LSB) &
+ XSDFEC_REG2_NO_FINAL_PARITY_MASK);
+ if (max_schedule &
+ ~(XSDFEC_REG2_MAX_SCHEDULE_MASK >> XSDFEC_REG2_MAX_SCHEDULE_LSB))
+ dev_dbg(xsdfec->dev, "Max Schedule exceeds 2 bits");
+ max_schedule = ((max_schedule << XSDFEC_REG2_MAX_SCHEDULE_LSB) &
+ XSDFEC_REG2_MAX_SCHEDULE_MASK);
+
+ wdata = (max_schedule | no_final_parity | special_qc | norm_type |
+ nmqc | nlayers);
+
+ if (XSDFEC_LDPC_CODE_REG2_ADDR_BASE + (offset * XSDFEC_LDPC_REG_JUMP) >
+ XSDFEC_LDPC_CODE_REG2_ADDR_HIGH) {
+ dev_dbg(xsdfec->dev, "Writing outside of LDPC reg2 space 0x%x",
+ XSDFEC_LDPC_CODE_REG2_ADDR_BASE +
+ (offset * XSDFEC_LDPC_REG_JUMP));
+ return -EINVAL;
+ }
+ xsdfec_regwrite(xsdfec,
+ XSDFEC_LDPC_CODE_REG2_ADDR_BASE +
+ (offset * XSDFEC_LDPC_REG_JUMP),
+ wdata);
+ return 0;
+}
+
+static int xsdfec_reg3_write(struct xsdfec_dev *xsdfec, u8 sc_off, u8 la_off,
+ u16 qc_off, u32 offset)
+{
+ u32 wdata;
+
+ wdata = ((qc_off << XSDFEC_REG3_QC_OFF_LSB) |
+ (la_off << XSDFEC_REG3_LA_OFF_LSB) | sc_off);
+ if (XSDFEC_LDPC_CODE_REG3_ADDR_BASE + (offset * XSDFEC_LDPC_REG_JUMP) >
+ XSDFEC_LDPC_CODE_REG3_ADDR_HIGH) {
+ dev_dbg(xsdfec->dev, "Writing outside of LDPC reg3 space 0x%x",
+ XSDFEC_LDPC_CODE_REG3_ADDR_BASE +
+ (offset * XSDFEC_LDPC_REG_JUMP));
+ return -EINVAL;
+ }
+ xsdfec_regwrite(xsdfec,
+ XSDFEC_LDPC_CODE_REG3_ADDR_BASE +
+ (offset * XSDFEC_LDPC_REG_JUMP),
+ wdata);
+ return 0;
+}
+
+static int xsdfec_table_write(struct xsdfec_dev *xsdfec, u32 offset,
+ u32 *src_ptr, u32 len, const u32 base_addr,
+ const u32 depth)
+{
+ u32 reg = 0;
+ u32 res;
+ u32 n, i;
+ u32 *addr = NULL;
+ struct page *page[MAX_NUM_PAGES];
+
+ /*
+ * Writes that go beyond the length of
+ * Shared Scale(SC) table should fail
+ */
+ if (offset > depth / XSDFEC_REG_WIDTH_JUMP ||
+ len > depth / XSDFEC_REG_WIDTH_JUMP ||
+ offset + len > depth / XSDFEC_REG_WIDTH_JUMP) {
+ dev_dbg(xsdfec->dev, "Write exceeds SC table length");
+ return -EINVAL;
+ }
+
+ n = (len * XSDFEC_REG_WIDTH_JUMP) / PAGE_SIZE;
+ if ((len * XSDFEC_REG_WIDTH_JUMP) % PAGE_SIZE)
+ n += 1;
+
+ res = get_user_pages_fast((unsigned long)src_ptr, n, 0, page);
+ if (res < n) {
+ for (i = 0; i < res; i++)
+ put_page(page[i]);
+ return -EINVAL;
+ }
+
+ for (i = 0; i < n; i++) {
+ addr = kmap(page[i]);
+ do {
+ xsdfec_regwrite(xsdfec,
+ base_addr + ((offset + reg) *
+ XSDFEC_REG_WIDTH_JUMP),
+ addr[reg]);
+ reg++;
+ } while ((reg < len) &&
+ ((reg * XSDFEC_REG_WIDTH_JUMP) % PAGE_SIZE));
+ put_page(page[i]);
+ }
+ return reg;
+}
+
+static int xsdfec_add_ldpc(struct xsdfec_dev *xsdfec, void __user *arg)
+{
+ struct xsdfec_ldpc_params *ldpc;
+ int ret, n;
+
+ ldpc = kzalloc(sizeof(*ldpc), GFP_KERNEL);
+ if (!ldpc)
+ return -ENOMEM;
+
+ if (copy_from_user(ldpc, arg, sizeof(*ldpc))) {
+ ret = -EFAULT;
+ goto err_out;
+ }
+
+ if (xsdfec->config.code == XSDFEC_TURBO_CODE) {
+ ret = -EIO;
+ goto err_out;
+ }
+
+ /* Verify Device has not started */
+ if (xsdfec->state == XSDFEC_STARTED) {
+ ret = -EIO;
+ goto err_out;
+ }
+
+ if (xsdfec->config.code_wr_protect) {
+ ret = -EIO;
+ goto err_out;
+ }
+
+ /* Write Reg 0 */
+ ret = xsdfec_reg0_write(xsdfec, ldpc->n, ldpc->k, ldpc->psize,
+ ldpc->code_id);
+ if (ret)
+ goto err_out;
+
+ /* Write Reg 1 */
+ ret = xsdfec_reg1_write(xsdfec, ldpc->psize, ldpc->no_packing, ldpc->nm,
+ ldpc->code_id);
+ if (ret)
+ goto err_out;
+
+ /* Write Reg 2 */
+ ret = xsdfec_reg2_write(xsdfec, ldpc->nlayers, ldpc->nmqc,
+ ldpc->norm_type, ldpc->special_qc,
+ ldpc->no_final_parity, ldpc->max_schedule,
+ ldpc->code_id);
+ if (ret)
+ goto err_out;
+
+ /* Write Reg 3 */
+ ret = xsdfec_reg3_write(xsdfec, ldpc->sc_off, ldpc->la_off,
+ ldpc->qc_off, ldpc->code_id);
+ if (ret)
+ goto err_out;
+
+ /* Write Shared Codes */
+ n = ldpc->nlayers / 4;
+ if (ldpc->nlayers % 4)
+ n++;
+
+ ret = xsdfec_table_write(xsdfec, ldpc->sc_off, ldpc->sc_table, n,
+ XSDFEC_LDPC_SC_TABLE_ADDR_BASE,
+ XSDFEC_SC_TABLE_DEPTH);
+ if (ret < 0)
+ goto err_out;
+
+ ret = xsdfec_table_write(xsdfec, 4 * ldpc->la_off, ldpc->la_table,
+ ldpc->nlayers, XSDFEC_LDPC_LA_TABLE_ADDR_BASE,
+ XSDFEC_LA_TABLE_DEPTH);
+ if (ret < 0)
+ goto err_out;
+
+ ret = xsdfec_table_write(xsdfec, 4 * ldpc->qc_off, ldpc->qc_table,
+ ldpc->nqc, XSDFEC_LDPC_QC_TABLE_ADDR_BASE,
+ XSDFEC_QC_TABLE_DEPTH);
+ if (ret > 0)
+ ret = 0;
+err_out:
+ kfree(ldpc);
+ return ret;
+}
+
+static int xsdfec_set_order(struct xsdfec_dev *xsdfec, void __user *arg)
+{
+ bool order_invalid;
+ enum xsdfec_order order;
+ int err;
+
+ err = get_user(order, (enum xsdfec_order *)arg);
+ if (err)
+ return -EFAULT;
+
+ order_invalid = (order != XSDFEC_MAINTAIN_ORDER) &&
+ (order != XSDFEC_OUT_OF_ORDER);
+ if (order_invalid)
+ return -EINVAL;
+
+ /* Verify Device has not started */
+ if (xsdfec->state == XSDFEC_STARTED)
+ return -EIO;
+
+ xsdfec_regwrite(xsdfec, XSDFEC_ORDER_ADDR, order);
+
+ xsdfec->config.order = order;
+
+ return 0;
+}
+
+static int xsdfec_set_bypass(struct xsdfec_dev *xsdfec, bool __user *arg)
+{
+ bool bypass;
+ int err;
+
+ err = get_user(bypass, arg);
+ if (err)
+ return -EFAULT;
+
+ /* Verify Device has not started */
+ if (xsdfec->state == XSDFEC_STARTED)
+ return -EIO;
+
+ if (bypass)
+ xsdfec_regwrite(xsdfec, XSDFEC_BYPASS_ADDR, 1);
+ else
+ xsdfec_regwrite(xsdfec, XSDFEC_BYPASS_ADDR, 0);
+
+ xsdfec->config.bypass = bypass;
+
+ return 0;
+}
+
+static int xsdfec_is_active(struct xsdfec_dev *xsdfec, bool __user *arg)
+{
+ u32 reg_value;
+ bool is_active;
+ int err;
+
+ reg_value = xsdfec_regread(xsdfec, XSDFEC_ACTIVE_ADDR);
+ /* using a double ! operator instead of casting */
+ is_active = !!(reg_value & XSDFEC_IS_ACTIVITY_SET);
+ err = put_user(is_active, arg);
+ if (err)
+ return -EFAULT;
+
+ return err;
+}
+
+static u32
+xsdfec_translate_axis_width_cfg_val(enum xsdfec_axis_width axis_width_cfg)
+{
+ u32 axis_width_field = 0;
+
+ switch (axis_width_cfg) {
+ case XSDFEC_1x128b:
+ axis_width_field = 0;
+ break;
+ case XSDFEC_2x128b:
+ axis_width_field = 1;
+ break;
+ case XSDFEC_4x128b:
+ axis_width_field = 2;
+ break;
+ }
+
+ return axis_width_field;
+}
+
+static u32 xsdfec_translate_axis_words_cfg_val(enum xsdfec_axis_word_include
+ axis_word_inc_cfg)
+{
+ u32 axis_words_field = 0;
+
+ if (axis_word_inc_cfg == XSDFEC_FIXED_VALUE ||
+ axis_word_inc_cfg == XSDFEC_IN_BLOCK)
+ axis_words_field = 0;
+ else if (axis_word_inc_cfg == XSDFEC_PER_AXI_TRANSACTION)
+ axis_words_field = 1;
+
+ return axis_words_field;
+}
+
+static int xsdfec_cfg_axi_streams(struct xsdfec_dev *xsdfec)
+{
+ u32 reg_value;
+ u32 dout_words_field;
+ u32 dout_width_field;
+ u32 din_words_field;
+ u32 din_width_field;
+ struct xsdfec_config *config = &xsdfec->config;
+
+ /* translate config info to register values */
+ dout_words_field =
+ xsdfec_translate_axis_words_cfg_val(config->dout_word_include);
+ dout_width_field =
+ xsdfec_translate_axis_width_cfg_val(config->dout_width);
+ din_words_field =
+ xsdfec_translate_axis_words_cfg_val(config->din_word_include);
+ din_width_field =
+ xsdfec_translate_axis_width_cfg_val(config->din_width);
+
+ reg_value = dout_words_field << XSDFEC_AXIS_DOUT_WORDS_LSB;
+ reg_value |= dout_width_field << XSDFEC_AXIS_DOUT_WIDTH_LSB;
+ reg_value |= din_words_field << XSDFEC_AXIS_DIN_WORDS_LSB;
+ reg_value |= din_width_field << XSDFEC_AXIS_DIN_WIDTH_LSB;
+
+ xsdfec_regwrite(xsdfec, XSDFEC_AXIS_WIDTH_ADDR, reg_value);
+
+ return 0;
+}
+
+static int xsdfec_dev_open(struct inode *iptr, struct file *fptr)
+{
+ return 0;
+}
+
+static int xsdfec_dev_release(struct inode *iptr, struct file *fptr)
+{
+ return 0;
+}
+
+static int xsdfec_start(struct xsdfec_dev *xsdfec)
+{
+ u32 regread;
+
+ regread = xsdfec_regread(xsdfec, XSDFEC_FEC_CODE_ADDR);
+ regread &= 0x1;
+ if (regread != xsdfec->config.code) {
+ dev_dbg(xsdfec->dev,
+ "%s SDFEC HW code does not match driver code, reg %d, code %d",
+ __func__, regread, xsdfec->config.code);
+ return -EINVAL;
+ }
+
+ /* Set AXIS enable */
+ xsdfec_regwrite(xsdfec, XSDFEC_AXIS_ENABLE_ADDR,
+ XSDFEC_AXIS_ENABLE_MASK);
+ /* Done */
+ xsdfec->state = XSDFEC_STARTED;
+ return 0;
+}
+
+static int xsdfec_stop(struct xsdfec_dev *xsdfec)
+{
+ u32 regread;
+
+ if (xsdfec->state != XSDFEC_STARTED)
+ dev_dbg(xsdfec->dev, "Device not started correctly");
+ /* Disable AXIS_ENABLE Input interfaces only */
+ regread = xsdfec_regread(xsdfec, XSDFEC_AXIS_ENABLE_ADDR);
+ regread &= (~XSDFEC_AXIS_IN_ENABLE_MASK);
+ xsdfec_regwrite(xsdfec, XSDFEC_AXIS_ENABLE_ADDR, regread);
+ /* Stop */
+ xsdfec->state = XSDFEC_STOPPED;
+ return 0;
+}
+
+static int xsdfec_clear_stats(struct xsdfec_dev *xsdfec)
+{
+ spin_lock_irqsave(&xsdfec->error_data_lock, xsdfec->flags);
+ xsdfec->isr_err_count = 0;
+ xsdfec->uecc_count = 0;
+ xsdfec->cecc_count = 0;
+ spin_unlock_irqrestore(&xsdfec->error_data_lock, xsdfec->flags);
+
+ return 0;
+}
+
+static int xsdfec_get_stats(struct xsdfec_dev *xsdfec, void __user *arg)
+{
+ int err;
+ struct xsdfec_stats user_stats;
+
+ spin_lock_irqsave(&xsdfec->error_data_lock, xsdfec->flags);
+ user_stats.isr_err_count = xsdfec->isr_err_count;
+ user_stats.cecc_count = xsdfec->cecc_count;
+ user_stats.uecc_count = xsdfec->uecc_count;
+ xsdfec->stats_updated = false;
+ spin_unlock_irqrestore(&xsdfec->error_data_lock, xsdfec->flags);
+
+ err = copy_to_user(arg, &user_stats, sizeof(user_stats));
+ if (err)
+ err = -EFAULT;
+
+ return err;
+}
+
+static int xsdfec_set_default_config(struct xsdfec_dev *xsdfec)
+{
+ /* Ensure registers are aligned with core configuration */
+ xsdfec_regwrite(xsdfec, XSDFEC_FEC_CODE_ADDR, xsdfec->config.code);
+ xsdfec_cfg_axi_streams(xsdfec);
+ update_config_from_hw(xsdfec);
+
+ return 0;
+}
+
+static long xsdfec_dev_ioctl(struct file *fptr, unsigned int cmd,
+ unsigned long data)
+{
+ struct xsdfec_dev *xsdfec;
+ void __user *arg = NULL;
+ int rval = -EINVAL;
+
+ xsdfec = container_of(fptr->private_data, struct xsdfec_dev, miscdev);
+
+ /* In failed state allow only reset and get status IOCTLs */
+ if (xsdfec->state == XSDFEC_NEEDS_RESET &&
+ (cmd != XSDFEC_SET_DEFAULT_CONFIG && cmd != XSDFEC_GET_STATUS &&
+ cmd != XSDFEC_GET_STATS && cmd != XSDFEC_CLEAR_STATS)) {
+ return -EPERM;
+ }
+
+ if (_IOC_TYPE(cmd) != XSDFEC_MAGIC)
+ return -ENOTTY;
+
+ /* check if ioctl argument is present and valid */
+ if (_IOC_DIR(cmd) != _IOC_NONE) {
+ arg = (void __user *)data;
+ if (!arg)
+ return rval;
+ }
+
+ switch (cmd) {
+ case XSDFEC_START_DEV:
+ rval = xsdfec_start(xsdfec);
+ break;
+ case XSDFEC_STOP_DEV:
+ rval = xsdfec_stop(xsdfec);
+ break;
+ case XSDFEC_CLEAR_STATS:
+ rval = xsdfec_clear_stats(xsdfec);
+ break;
+ case XSDFEC_GET_STATS:
+ rval = xsdfec_get_stats(xsdfec, arg);
+ break;
+ case XSDFEC_GET_STATUS:
+ rval = xsdfec_get_status(xsdfec, arg);
+ break;
+ case XSDFEC_GET_CONFIG:
+ rval = xsdfec_get_config(xsdfec, arg);
+ break;
+ case XSDFEC_SET_DEFAULT_CONFIG:
+ rval = xsdfec_set_default_config(xsdfec);
+ break;
+ case XSDFEC_SET_IRQ:
+ rval = xsdfec_set_irq(xsdfec, arg);
+ break;
+ case XSDFEC_SET_TURBO:
+ rval = xsdfec_set_turbo(xsdfec, arg);
+ break;
+ case XSDFEC_GET_TURBO:
+ rval = xsdfec_get_turbo(xsdfec, arg);
+ break;
+ case XSDFEC_ADD_LDPC_CODE_PARAMS:
+ rval = xsdfec_add_ldpc(xsdfec, arg);
+ break;
+ case XSDFEC_SET_ORDER:
+ rval = xsdfec_set_order(xsdfec, arg);
+ break;
+ case XSDFEC_SET_BYPASS:
+ rval = xsdfec_set_bypass(xsdfec, arg);
+ break;
+ case XSDFEC_IS_ACTIVE:
+ rval = xsdfec_is_active(xsdfec, (bool __user *)arg);
+ break;
+ default:
+ /* Should not get here */
+ break;
+ }
+ return rval;
+}
+
+#ifdef CONFIG_COMPAT
+static long xsdfec_dev_compat_ioctl(struct file *file, unsigned int cmd,
+ unsigned long data)
+{
+ return xsdfec_dev_ioctl(file, cmd, (unsigned long)compat_ptr(data));
+}
+#endif
+
+static unsigned int xsdfec_poll(struct file *file, poll_table *wait)
+{
+ unsigned int mask = 0;
+ struct xsdfec_dev *xsdfec;
+
+ xsdfec = container_of(file->private_data, struct xsdfec_dev, miscdev);
+
+ if (!xsdfec)
+ return POLLNVAL | POLLHUP;
+
+ poll_wait(file, &xsdfec->waitq, wait);
+
+ /* XSDFEC ISR detected an error */
+ spin_lock_irqsave(&xsdfec->error_data_lock, xsdfec->flags);
+ if (xsdfec->state_updated)
+ mask |= POLLIN | POLLPRI;
+
+ if (xsdfec->stats_updated)
+ mask |= POLLIN | POLLRDNORM;
+ spin_unlock_irqrestore(&xsdfec->error_data_lock, xsdfec->flags);
+
+ return mask;
+}
+
static const struct file_operations xsdfec_fops = {
.owner = THIS_MODULE,
+ .open = xsdfec_dev_open,
+ .release = xsdfec_dev_release,
+ .unlocked_ioctl = xsdfec_dev_ioctl,
+ .poll = xsdfec_poll,
+#ifdef CONFIG_COMPAT
+ .compat_ioctl = xsdfec_dev_compat_ioctl,
+#endif
};
+static int xsdfec_parse_of(struct xsdfec_dev *xsdfec)
+{
+ struct device *dev = xsdfec->dev;
+ struct device_node *node = dev->of_node;
+ int rval;
+ const char *fec_code;
+ u32 din_width;
+ u32 din_word_include;
+ u32 dout_width;
+ u32 dout_word_include;
+
+ rval = of_property_read_string(node, "xlnx,sdfec-code", &fec_code);
+ if (rval < 0)
+ return rval;
+
+ if (!strcasecmp(fec_code, "ldpc"))
+ xsdfec->config.code = XSDFEC_LDPC_CODE;
+ else if (!strcasecmp(fec_code, "turbo"))
+ xsdfec->config.code = XSDFEC_TURBO_CODE;
+ else
+ return -EINVAL;
+
+ rval = of_property_read_u32(node, "xlnx,sdfec-din-words",
+ &din_word_include);
+ if (rval < 0)
+ return rval;
+
+ if (din_word_include < XSDFEC_AXIS_WORDS_INCLUDE_MAX)
+ xsdfec->config.din_word_include = din_word_include;
+ else
+ return -EINVAL;
+
+ rval = of_property_read_u32(node, "xlnx,sdfec-din-width", &din_width);
+ if (rval < 0)
+ return rval;
+
+ switch (din_width) {
+ /* Fall through and set for valid values */
+ case XSDFEC_1x128b:
+ case XSDFEC_2x128b:
+ case XSDFEC_4x128b:
+ xsdfec->config.din_width = din_width;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ rval = of_property_read_u32(node, "xlnx,sdfec-dout-words",
+ &dout_word_include);
+ if (rval < 0)
+ return rval;
+
+ if (dout_word_include < XSDFEC_AXIS_WORDS_INCLUDE_MAX)
+ xsdfec->config.dout_word_include = dout_word_include;
+ else
+ return -EINVAL;
+
+ rval = of_property_read_u32(node, "xlnx,sdfec-dout-width", &dout_width);
+ if (rval < 0)
+ return rval;
+
+ switch (dout_width) {
+ /* Fall through and set for valid values */
+ case XSDFEC_1x128b:
+ case XSDFEC_2x128b:
+ case XSDFEC_4x128b:
+ xsdfec->config.dout_width = dout_width;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ /* Write LDPC to CODE Register */
+ xsdfec_regwrite(xsdfec, XSDFEC_FEC_CODE_ADDR, xsdfec->config.code);
+
+ xsdfec_cfg_axi_streams(xsdfec);
+
+ return 0;
+}
+
+static irqreturn_t xsdfec_irq_thread(int irq, void *dev_id)
+{
+ struct xsdfec_dev *xsdfec = dev_id;
+ irqreturn_t ret = IRQ_HANDLED;
+ u32 ecc_err;
+ u32 isr_err;
+ u32 uecc_count;
+ u32 cecc_count;
+ u32 isr_err_count;
+ u32 aecc_count;
+ u32 tmp;
+
+ WARN_ON(xsdfec->irq != irq);
+
+ /* Mask Interrupts */
+ xsdfec_isr_enable(xsdfec, false);
+ xsdfec_ecc_isr_enable(xsdfec, false);
+ /* Read ISR */
+ ecc_err = xsdfec_regread(xsdfec, XSDFEC_ECC_ISR_ADDR);
+ isr_err = xsdfec_regread(xsdfec, XSDFEC_ISR_ADDR);
+ /* Clear the interrupts */
+ xsdfec_regwrite(xsdfec, XSDFEC_ECC_ISR_ADDR, ecc_err);
+ xsdfec_regwrite(xsdfec, XSDFEC_ISR_ADDR, isr_err);
+
+ tmp = ecc_err & XSDFEC_ALL_ECC_ISR_MBE_MASK;
+ /* Count uncorrectable 2-bit errors */
+ uecc_count = hweight32(tmp);
+ /* Count all ECC errors */
+ aecc_count = hweight32(ecc_err);
+ /* Number of correctable 1-bit ECC error */
+ cecc_count = aecc_count - 2 * uecc_count;
+ /* Count ISR errors */
+ isr_err_count = hweight32(isr_err);
+ dev_dbg(xsdfec->dev, "tmp=%x, uecc=%x, aecc=%x, cecc=%x, isr=%x", tmp,
+ uecc_count, aecc_count, cecc_count, isr_err_count);
+ dev_dbg(xsdfec->dev, "uecc=%x, cecc=%x, isr=%x", xsdfec->uecc_count,
+ xsdfec->cecc_count, xsdfec->isr_err_count);
+
+ spin_lock_irqsave(&xsdfec->error_data_lock, xsdfec->flags);
+ /* Add new errors to a 2-bits counter */
+ if (uecc_count)
+ xsdfec->uecc_count += uecc_count;
+ /* Add new errors to a 1-bits counter */
+ if (cecc_count)
+ xsdfec->cecc_count += cecc_count;
+ /* Add new errors to a ISR counter */
+ if (isr_err_count)
+ xsdfec->isr_err_count += isr_err_count;
+
+ /* Update state/stats flag */
+ if (uecc_count) {
+ if (ecc_err & XSDFEC_ECC_ISR_MBE_MASK)
+ xsdfec->state = XSDFEC_NEEDS_RESET;
+ else if (ecc_err & XSDFEC_PL_INIT_ECC_ISR_MBE_MASK)
+ xsdfec->state = XSDFEC_PL_RECONFIGURE;
+ xsdfec->stats_updated = true;
+ xsdfec->state_updated = true;
+ }
+
+ if (cecc_count)
+ xsdfec->stats_updated = true;
+
+ if (isr_err_count) {
+ xsdfec->state = XSDFEC_NEEDS_RESET;
+ xsdfec->stats_updated = true;
+ xsdfec->state_updated = true;
+ }
+
+ spin_unlock_irqrestore(&xsdfec->error_data_lock, xsdfec->flags);
+ dev_dbg(xsdfec->dev, "state=%x, stats=%x", xsdfec->state_updated,
+ xsdfec->stats_updated);
+
+ /* Enable another polling */
+ if (xsdfec->state_updated || xsdfec->stats_updated)
+ wake_up_interruptible(&xsdfec->waitq);
+ else
+ ret = IRQ_NONE;
+
+ /* Unmask Interrupts */
+ xsdfec_isr_enable(xsdfec, true);
+ xsdfec_ecc_isr_enable(xsdfec, true);
+
+ return ret;
+}
+
static int xsdfec_clk_init(struct platform_device *pdev,
struct xsdfec_clks *clks)
{
@@ -227,19 +1378,13 @@ static void xsdfec_disable_all_clks(struct xsdfec_clks *clks)
clk_disable_unprepare(clks->axi_clk);
}
-static void xsdfec_idr_remove(struct xsdfec_dev *xsdfec)
-{
- mutex_lock(&dev_idr_lock);
- idr_remove(&dev_idr, xsdfec->dev_id);
- mutex_unlock(&dev_idr_lock);
-}
-
static int xsdfec_probe(struct platform_device *pdev)
{
struct xsdfec_dev *xsdfec;
struct device *dev;
struct resource *res;
int err;
+ bool irq_enabled = true;
xsdfec = devm_kzalloc(&pdev->dev, sizeof(*xsdfec), GFP_KERNEL);
if (!xsdfec)
@@ -260,12 +1405,34 @@ static int xsdfec_probe(struct platform_device *pdev)
goto err_xsdfec_dev;
}
+ xsdfec->irq = platform_get_irq(pdev, 0);
+ if (xsdfec->irq < 0) {
+ dev_dbg(dev, "platform_get_irq failed");
+ irq_enabled = false;
+ }
+
+ err = xsdfec_parse_of(xsdfec);
+ if (err < 0)
+ goto err_xsdfec_dev;
+
+ update_config_from_hw(xsdfec);
+
/* Save driver private data */
platform_set_drvdata(pdev, xsdfec);
- mutex_lock(&dev_idr_lock);
- err = idr_alloc(&dev_idr, xsdfec->dev_name, 0, 0, GFP_KERNEL);
- mutex_unlock(&dev_idr_lock);
+ if (irq_enabled) {
+ init_waitqueue_head(&xsdfec->waitq);
+ /* Register IRQ thread */
+ err = devm_request_threaded_irq(dev, xsdfec->irq, NULL,
+ xsdfec_irq_thread, IRQF_ONESHOT,
+ "xilinx-sdfec16", xsdfec);
+ if (err < 0) {
+ dev_err(dev, "unable to request IRQ%d", xsdfec->irq);
+ goto err_xsdfec_dev;
+ }
+ }
+
+ err = ida_alloc(&dev_nrs, GFP_KERNEL);
if (err < 0)
goto err_xsdfec_dev;
xsdfec->dev_id = err;
@@ -278,12 +1445,12 @@ static int xsdfec_probe(struct platform_device *pdev)
err = misc_register(&xsdfec->miscdev);
if (err) {
dev_err(dev, "error:%d. Unable to register device", err);
- goto err_xsdfec_idr;
+ goto err_xsdfec_ida;
}
return 0;
-err_xsdfec_idr:
- xsdfec_idr_remove(xsdfec);
+err_xsdfec_ida:
+ ida_free(&dev_nrs, xsdfec->dev_id);
err_xsdfec_dev:
xsdfec_disable_all_clks(&xsdfec->clks);
return err;
@@ -295,7 +1462,7 @@ static int xsdfec_remove(struct platform_device *pdev)
xsdfec = platform_get_drvdata(pdev);
misc_deregister(&xsdfec->miscdev);
- xsdfec_idr_remove(xsdfec);
+ ida_free(&dev_nrs, xsdfec->dev_id);
xsdfec_disable_all_clks(&xsdfec->clks);
return 0;
}
@@ -321,8 +1488,6 @@ static int __init xsdfec_init(void)
{
int err;
- mutex_init(&dev_idr_lock);
- idr_init(&dev_idr);
err = platform_driver_register(&xsdfec_driver);
if (err < 0) {
pr_err("%s Unabled to register SDFEC driver", __func__);
@@ -334,7 +1499,6 @@ static int __init xsdfec_init(void)
static void __exit xsdfec_exit(void)
{
platform_driver_unregister(&xsdfec_driver);
- idr_destroy(&dev_idr);
}
module_init(xsdfec_init);