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authorDavid S. Miller <davem@davemloft.net>2017-04-16 04:16:30 +0300
committerDavid S. Miller <davem@davemloft.net>2017-04-16 04:16:30 +0300
commit6b6cbc1471676402565e958674523d06213b82d7 (patch)
treea66d41d276e5eb400e27641f24f34032fe1b9275 /drivers
parentce07183282975026716107d36fd3f5f93de76668 (diff)
parent1bf4b1268e66d9364fc6fd41f906bc01458530ac (diff)
downloadlinux-6b6cbc1471676402565e958674523d06213b82d7.tar.xz
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Conflicts were simply overlapping changes. In the net/ipv4/route.c case the code had simply moved around a little bit and the same fix was made in both 'net' and 'net-next'. In the net/sched/sch_generic.c case a fix in 'net' happened at the same time that a new argument was added to qdisc_hash_add(). Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/acpi/acpica/utresrc.c17
-rw-r--r--drivers/acpi/glue.c12
-rw-r--r--drivers/acpi/scan.c19
-rw-r--r--drivers/ata/pata_atiixp.c5
-rw-r--r--drivers/ata/sata_via.c18
-rw-r--r--drivers/block/zram/zram_drv.c6
-rw-r--r--drivers/char/mem.c82
-rw-r--r--drivers/char/virtio_console.c6
-rw-r--r--drivers/cpufreq/cpufreq.c18
-rw-r--r--drivers/crypto/caam/caampkc.c2
-rw-r--r--drivers/crypto/caam/ctrl.c66
-rw-r--r--drivers/crypto/caam/intern.h1
-rw-r--r--drivers/firmware/efi/libstub/gop.c6
-rw-r--r--drivers/gpu/drm/etnaviv/etnaviv_gpu.c3
-rw-r--r--drivers/gpu/drm/i915/gvt/cfg_space.c3
-rw-r--r--drivers/gpu/drm/i915/gvt/execlist.c3
-rw-r--r--drivers/gpu/drm/i915/gvt/firmware.c9
-rw-r--r--drivers/gpu/drm/i915/gvt/gvt.c2
-rw-r--r--drivers/gpu/drm/i915/gvt/gvt.h5
-rw-r--r--drivers/gpu/drm/i915/gvt/kvmgt.c11
-rw-r--r--drivers/gpu/drm/i915/gvt/vgpu.c45
-rw-r--r--drivers/gpu/drm/i915/i915_drv.c2
-rw-r--r--drivers/gpu/drm/i915/i915_drv.h1
-rw-r--r--drivers/gpu/drm/i915/i915_gem.c2
-rw-r--r--drivers/gpu/drm/i915/i915_gem_execbuffer.c4
-rw-r--r--drivers/gpu/drm/i915/i915_gem_gtt.c2
-rw-r--r--drivers/gpu/drm/i915/i915_gem_request.c11
-rw-r--r--drivers/gpu/drm/i915/i915_gem_shrinker.c26
-rw-r--r--drivers/gpu/drm/i915/i915_pci.c5
-rw-r--r--drivers/gpu/drm/i915/i915_perf.c11
-rw-r--r--drivers/gpu/drm/i915/intel_lrc.c57
-rw-r--r--drivers/gpu/drm/i915/intel_ringbuffer.h8
-rw-r--r--drivers/gpu/drm/nouveau/nv50_display.c10
-rw-r--r--drivers/gpu/drm/nouveau/nvkm/engine/device/base.c32
-rw-r--r--drivers/gpu/drm/nouveau/nvkm/engine/mpeg/nv31.c2
-rw-r--r--drivers/gpu/drm/nouveau/nvkm/engine/mpeg/nv44.c2
-rw-r--r--drivers/gpu/drm/udl/udl_transfer.c3
-rw-r--r--drivers/hid/hid-core.c4
-rw-r--r--drivers/hid/hid-ids.h3
-rw-r--r--drivers/hid/hid-uclogic.c2
-rw-r--r--drivers/iio/accel/hid-sensor-accel-3d.c3
-rw-r--r--drivers/iio/common/cros_ec_sensors/cros_ec_sensors.c4
-rw-r--r--drivers/iio/common/hid-sensors/hid-sensor-attributes.c10
-rw-r--r--drivers/iio/gyro/bmg160_core.c12
-rw-r--r--drivers/iio/industrialio-core.c7
-rw-r--r--drivers/iio/pressure/st_pressure_core.c1
-rw-r--r--drivers/infiniband/ulp/isert/ib_isert.c65
-rw-r--r--drivers/infiniband/ulp/isert/ib_isert.h3
-rw-r--r--drivers/input/joystick/xpad.c2
-rw-r--r--drivers/irqchip/irq-imx-gpcv2.c2
-rw-r--r--drivers/md/dm-cache-metadata.c8
-rw-r--r--drivers/md/dm-raid.c2
-rw-r--r--drivers/md/dm-rq.c1
-rw-r--r--drivers/md/dm-verity-fec.c18
-rw-r--r--drivers/md/dm-verity-fec.h4
-rw-r--r--drivers/net/can/ifi_canfd/ifi_canfd.c2
-rw-r--r--drivers/net/can/rcar/rcar_can.c3
-rw-r--r--drivers/net/team/team.c19
-rw-r--r--drivers/net/usb/qmi_wwan.c2
-rw-r--r--drivers/net/usb/usbnet.c19
-rw-r--r--drivers/net/virtio_net.c45
-rw-r--r--drivers/nvme/host/core.c2
-rw-r--r--drivers/nvme/target/admin-cmd.c2
-rw-r--r--drivers/nvme/target/io-cmd.c4
-rw-r--r--drivers/pci/dwc/Kconfig1
-rw-r--r--drivers/pci/dwc/pcie-artpec6.c4
-rw-r--r--drivers/pci/dwc/pcie-designware-plat.c4
-rw-r--r--drivers/pci/host/pci-thunder-pem.c10
-rw-r--r--drivers/pinctrl/core.c97
-rw-r--r--drivers/pinctrl/freescale/pinctrl-imx.c2
-rw-r--r--drivers/pinctrl/intel/pinctrl-cherryview.c26
-rw-r--r--drivers/pinctrl/pinctrl-single.c2
-rw-r--r--drivers/pinctrl/samsung/pinctrl-exynos.c80
-rw-r--r--drivers/pinctrl/samsung/pinctrl-exynos.h11
-rw-r--r--drivers/pinctrl/sh-pfc/pinctrl.c11
-rw-r--r--drivers/pinctrl/ti/pinctrl-ti-iodelay.c2
-rw-r--r--drivers/pwm/pwm-lpss-pci.c10
-rw-r--r--drivers/pwm/pwm-lpss-platform.c1
-rw-r--r--drivers/pwm/pwm-lpss.c19
-rw-r--r--drivers/pwm/pwm-lpss.h1
-rw-r--r--drivers/pwm/pwm-rockchip.c40
-rw-r--r--drivers/scsi/scsi_lib.c6
-rw-r--r--drivers/staging/android/ashmem.c1
-rw-r--r--drivers/target/iscsi/iscsi_target.c3
-rw-r--r--drivers/target/iscsi/iscsi_target_configfs.c13
-rw-r--r--drivers/target/iscsi/iscsi_target_parameters.c16
-rw-r--r--drivers/target/iscsi/iscsi_target_util.c17
-rw-r--r--drivers/target/iscsi/iscsi_target_util.h2
-rw-r--r--drivers/target/target_core_alua.c136
-rw-r--r--drivers/target/target_core_configfs.c2
-rw-r--r--drivers/target/target_core_fabric_configfs.c5
-rw-r--r--drivers/target/target_core_tpg.c4
-rw-r--r--drivers/target/target_core_transport.c102
-rw-r--r--drivers/target/target_core_user.c97
-rw-r--r--drivers/usb/gadget/function/f_tcm.c2
-rw-r--r--drivers/video/fbdev/efifb.c66
-rw-r--r--drivers/video/fbdev/omap/omapfb_main.c15
-rw-r--r--drivers/video/fbdev/ssd1307fb.c24
-rw-r--r--drivers/video/fbdev/xen-fbfront.c4
-rw-r--r--drivers/virtio/virtio.c6
-rw-r--r--drivers/virtio/virtio_pci_common.c375
-rw-r--r--drivers/virtio/virtio_pci_common.h43
-rw-r--r--drivers/virtio/virtio_pci_legacy.c8
-rw-r--r--drivers/virtio/virtio_pci_modern.c8
-rw-r--r--drivers/xen/xenbus/xenbus_dev_frontend.c4
105 files changed, 1288 insertions, 758 deletions
diff --git a/drivers/acpi/acpica/utresrc.c b/drivers/acpi/acpica/utresrc.c
index c86bae7b1d0f..ff096d9755b9 100644
--- a/drivers/acpi/acpica/utresrc.c
+++ b/drivers/acpi/acpica/utresrc.c
@@ -421,10 +421,8 @@ acpi_ut_walk_aml_resources(struct acpi_walk_state *walk_state,
ACPI_FUNCTION_TRACE(ut_walk_aml_resources);
- /*
- * The absolute minimum resource template is one end_tag descriptor.
- * However, we will treat a lone end_tag as just a simple buffer.
- */
+ /* The absolute minimum resource template is one end_tag descriptor */
+
if (aml_length < sizeof(struct aml_resource_end_tag)) {
return_ACPI_STATUS(AE_AML_NO_RESOURCE_END_TAG);
}
@@ -456,8 +454,9 @@ acpi_ut_walk_aml_resources(struct acpi_walk_state *walk_state,
/* Invoke the user function */
if (user_function) {
- status = user_function(aml, length, offset,
- resource_index, context);
+ status =
+ user_function(aml, length, offset, resource_index,
+ context);
if (ACPI_FAILURE(status)) {
return_ACPI_STATUS(status);
}
@@ -481,12 +480,6 @@ acpi_ut_walk_aml_resources(struct acpi_walk_state *walk_state,
*context = aml;
}
- /* Check if buffer is defined to be longer than the resource length */
-
- if (aml_length > (offset + length)) {
- return_ACPI_STATUS(AE_AML_NO_RESOURCE_END_TAG);
- }
-
/* Normal exit */
return_ACPI_STATUS(AE_OK);
diff --git a/drivers/acpi/glue.c b/drivers/acpi/glue.c
index fb19e1cdb641..edc8663b5db3 100644
--- a/drivers/acpi/glue.c
+++ b/drivers/acpi/glue.c
@@ -99,13 +99,13 @@ static int find_child_checks(struct acpi_device *adev, bool check_children)
return -ENODEV;
/*
- * If the device has a _HID (or _CID) returning a valid ACPI/PNP
- * device ID, it is better to make it look less attractive here, so that
- * the other device with the same _ADR value (that may not have a valid
- * device ID) can be matched going forward. [This means a second spec
- * violation in a row, so whatever we do here is best effort anyway.]
+ * If the device has a _HID returning a valid ACPI/PNP device ID, it is
+ * better to make it look less attractive here, so that the other device
+ * with the same _ADR value (that may not have a valid device ID) can be
+ * matched going forward. [This means a second spec violation in a row,
+ * so whatever we do here is best effort anyway.]
*/
- return sta_present && list_empty(&adev->pnp.ids) ?
+ return sta_present && !adev->pnp.type.platform_id ?
FIND_CHILD_MAX_SCORE : FIND_CHILD_MIN_SCORE;
}
diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
index 192691880d55..2433569b02ef 100644
--- a/drivers/acpi/scan.c
+++ b/drivers/acpi/scan.c
@@ -1857,15 +1857,20 @@ static void acpi_bus_attach(struct acpi_device *device)
return;
device->flags.match_driver = true;
- if (!ret) {
- ret = device_attach(&device->dev);
- if (ret < 0)
- return;
-
- if (!ret && device->pnp.type.platform_id)
- acpi_default_enumeration(device);
+ if (ret > 0) {
+ acpi_device_set_enumerated(device);
+ goto ok;
}
+ ret = device_attach(&device->dev);
+ if (ret < 0)
+ return;
+
+ if (ret > 0 || !device->pnp.type.platform_id)
+ acpi_device_set_enumerated(device);
+ else
+ acpi_default_enumeration(device);
+
ok:
list_for_each_entry(child, &device->children, node)
acpi_bus_attach(child);
diff --git a/drivers/ata/pata_atiixp.c b/drivers/ata/pata_atiixp.c
index 6c9aa95a9a05..49d705c9f0f7 100644
--- a/drivers/ata/pata_atiixp.c
+++ b/drivers/ata/pata_atiixp.c
@@ -278,11 +278,6 @@ static int atiixp_init_one(struct pci_dev *pdev, const struct pci_device_id *id)
};
const struct ata_port_info *ppi[] = { &info, &info };
- /* SB600/700 don't have secondary port wired */
- if ((pdev->device == PCI_DEVICE_ID_ATI_IXP600_IDE) ||
- (pdev->device == PCI_DEVICE_ID_ATI_IXP700_IDE))
- ppi[1] = &ata_dummy_port_info;
-
return ata_pci_bmdma_init_one(pdev, ppi, &atiixp_sht, NULL,
ATA_HOST_PARALLEL_SCAN);
}
diff --git a/drivers/ata/sata_via.c b/drivers/ata/sata_via.c
index 0636d84fbefe..f3f538eec7b3 100644
--- a/drivers/ata/sata_via.c
+++ b/drivers/ata/sata_via.c
@@ -644,14 +644,16 @@ static void svia_configure(struct pci_dev *pdev, int board_id,
pci_write_config_byte(pdev, SATA_NATIVE_MODE, tmp8);
}
- /* enable IRQ on hotplug */
- pci_read_config_byte(pdev, SVIA_MISC_3, &tmp8);
- if ((tmp8 & SATA_HOTPLUG) != SATA_HOTPLUG) {
- dev_dbg(&pdev->dev,
- "enabling SATA hotplug (0x%x)\n",
- (int) tmp8);
- tmp8 |= SATA_HOTPLUG;
- pci_write_config_byte(pdev, SVIA_MISC_3, tmp8);
+ if (board_id == vt6421) {
+ /* enable IRQ on hotplug */
+ pci_read_config_byte(pdev, SVIA_MISC_3, &tmp8);
+ if ((tmp8 & SATA_HOTPLUG) != SATA_HOTPLUG) {
+ dev_dbg(&pdev->dev,
+ "enabling SATA hotplug (0x%x)\n",
+ (int) tmp8);
+ tmp8 |= SATA_HOTPLUG;
+ pci_write_config_byte(pdev, SVIA_MISC_3, tmp8);
+ }
}
/*
diff --git a/drivers/block/zram/zram_drv.c b/drivers/block/zram/zram_drv.c
index dceb5edd1e54..0c09d4256108 100644
--- a/drivers/block/zram/zram_drv.c
+++ b/drivers/block/zram/zram_drv.c
@@ -523,7 +523,7 @@ static int zram_decompress_page(struct zram *zram, char *mem, u32 index)
cmem = zs_map_object(meta->mem_pool, handle, ZS_MM_RO);
if (size == PAGE_SIZE) {
- copy_page(mem, cmem);
+ memcpy(mem, cmem, PAGE_SIZE);
} else {
struct zcomp_strm *zstrm = zcomp_stream_get(zram->comp);
@@ -717,7 +717,7 @@ compress_again:
if ((clen == PAGE_SIZE) && !is_partial_io(bvec)) {
src = kmap_atomic(page);
- copy_page(cmem, src);
+ memcpy(cmem, src, PAGE_SIZE);
kunmap_atomic(src);
} else {
memcpy(cmem, src, clen);
@@ -928,7 +928,7 @@ static int zram_rw_page(struct block_device *bdev, sector_t sector,
}
index = sector >> SECTORS_PER_PAGE_SHIFT;
- offset = sector & (SECTORS_PER_PAGE - 1) << SECTOR_SHIFT;
+ offset = (sector & (SECTORS_PER_PAGE - 1)) << SECTOR_SHIFT;
bv.bv_page = page;
bv.bv_len = PAGE_SIZE;
diff --git a/drivers/char/mem.c b/drivers/char/mem.c
index 6d9cc2d39d22..7e4a9d1296bb 100644
--- a/drivers/char/mem.c
+++ b/drivers/char/mem.c
@@ -60,6 +60,10 @@ static inline int valid_mmap_phys_addr_range(unsigned long pfn, size_t size)
#endif
#ifdef CONFIG_STRICT_DEVMEM
+static inline int page_is_allowed(unsigned long pfn)
+{
+ return devmem_is_allowed(pfn);
+}
static inline int range_is_allowed(unsigned long pfn, unsigned long size)
{
u64 from = ((u64)pfn) << PAGE_SHIFT;
@@ -75,6 +79,10 @@ static inline int range_is_allowed(unsigned long pfn, unsigned long size)
return 1;
}
#else
+static inline int page_is_allowed(unsigned long pfn)
+{
+ return 1;
+}
static inline int range_is_allowed(unsigned long pfn, unsigned long size)
{
return 1;
@@ -122,23 +130,31 @@ static ssize_t read_mem(struct file *file, char __user *buf,
while (count > 0) {
unsigned long remaining;
+ int allowed;
sz = size_inside_page(p, count);
- if (!range_is_allowed(p >> PAGE_SHIFT, count))
+ allowed = page_is_allowed(p >> PAGE_SHIFT);
+ if (!allowed)
return -EPERM;
+ if (allowed == 2) {
+ /* Show zeros for restricted memory. */
+ remaining = clear_user(buf, sz);
+ } else {
+ /*
+ * On ia64 if a page has been mapped somewhere as
+ * uncached, then it must also be accessed uncached
+ * by the kernel or data corruption may occur.
+ */
+ ptr = xlate_dev_mem_ptr(p);
+ if (!ptr)
+ return -EFAULT;
- /*
- * On ia64 if a page has been mapped somewhere as uncached, then
- * it must also be accessed uncached by the kernel or data
- * corruption may occur.
- */
- ptr = xlate_dev_mem_ptr(p);
- if (!ptr)
- return -EFAULT;
+ remaining = copy_to_user(buf, ptr, sz);
+
+ unxlate_dev_mem_ptr(p, ptr);
+ }
- remaining = copy_to_user(buf, ptr, sz);
- unxlate_dev_mem_ptr(p, ptr);
if (remaining)
return -EFAULT;
@@ -181,30 +197,36 @@ static ssize_t write_mem(struct file *file, const char __user *buf,
#endif
while (count > 0) {
+ int allowed;
+
sz = size_inside_page(p, count);
- if (!range_is_allowed(p >> PAGE_SHIFT, sz))
+ allowed = page_is_allowed(p >> PAGE_SHIFT);
+ if (!allowed)
return -EPERM;
- /*
- * On ia64 if a page has been mapped somewhere as uncached, then
- * it must also be accessed uncached by the kernel or data
- * corruption may occur.
- */
- ptr = xlate_dev_mem_ptr(p);
- if (!ptr) {
- if (written)
- break;
- return -EFAULT;
- }
+ /* Skip actual writing when a page is marked as restricted. */
+ if (allowed == 1) {
+ /*
+ * On ia64 if a page has been mapped somewhere as
+ * uncached, then it must also be accessed uncached
+ * by the kernel or data corruption may occur.
+ */
+ ptr = xlate_dev_mem_ptr(p);
+ if (!ptr) {
+ if (written)
+ break;
+ return -EFAULT;
+ }
- copied = copy_from_user(ptr, buf, sz);
- unxlate_dev_mem_ptr(p, ptr);
- if (copied) {
- written += sz - copied;
- if (written)
- break;
- return -EFAULT;
+ copied = copy_from_user(ptr, buf, sz);
+ unxlate_dev_mem_ptr(p, ptr);
+ if (copied) {
+ written += sz - copied;
+ if (written)
+ break;
+ return -EFAULT;
+ }
}
buf += sz;
diff --git a/drivers/char/virtio_console.c b/drivers/char/virtio_console.c
index e9b7e0b3cabe..87fe111d0be6 100644
--- a/drivers/char/virtio_console.c
+++ b/drivers/char/virtio_console.c
@@ -2202,14 +2202,16 @@ static int virtcons_freeze(struct virtio_device *vdev)
vdev->config->reset(vdev);
- virtqueue_disable_cb(portdev->c_ivq);
+ if (use_multiport(portdev))
+ virtqueue_disable_cb(portdev->c_ivq);
cancel_work_sync(&portdev->control_work);
cancel_work_sync(&portdev->config_work);
/*
* Once more: if control_work_handler() was running, it would
* enable the cb as the last step.
*/
- virtqueue_disable_cb(portdev->c_ivq);
+ if (use_multiport(portdev))
+ virtqueue_disable_cb(portdev->c_ivq);
remove_controlq_data(portdev);
list_for_each_entry(port, &portdev->ports, list) {
diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c
index bc96d423781a..0e3f6496524d 100644
--- a/drivers/cpufreq/cpufreq.c
+++ b/drivers/cpufreq/cpufreq.c
@@ -2398,6 +2398,20 @@ EXPORT_SYMBOL_GPL(cpufreq_boost_enabled);
*********************************************************************/
static enum cpuhp_state hp_online;
+static int cpuhp_cpufreq_online(unsigned int cpu)
+{
+ cpufreq_online(cpu);
+
+ return 0;
+}
+
+static int cpuhp_cpufreq_offline(unsigned int cpu)
+{
+ cpufreq_offline(cpu);
+
+ return 0;
+}
+
/**
* cpufreq_register_driver - register a CPU Frequency driver
* @driver_data: A struct cpufreq_driver containing the values#
@@ -2460,8 +2474,8 @@ int cpufreq_register_driver(struct cpufreq_driver *driver_data)
}
ret = cpuhp_setup_state_nocalls(CPUHP_AP_ONLINE_DYN, "cpufreq:online",
- cpufreq_online,
- cpufreq_offline);
+ cpuhp_cpufreq_online,
+ cpuhp_cpufreq_offline);
if (ret < 0)
goto err_if_unreg;
hp_online = ret;
diff --git a/drivers/crypto/caam/caampkc.c b/drivers/crypto/caam/caampkc.c
index 32100c4851dd..49cbdcba7883 100644
--- a/drivers/crypto/caam/caampkc.c
+++ b/drivers/crypto/caam/caampkc.c
@@ -506,7 +506,7 @@ static int caam_rsa_init_tfm(struct crypto_akcipher *tfm)
ctx->dev = caam_jr_alloc();
if (IS_ERR(ctx->dev)) {
- dev_err(ctx->dev, "Job Ring Device allocation for transform failed\n");
+ pr_err("Job Ring Device allocation for transform failed\n");
return PTR_ERR(ctx->dev);
}
diff --git a/drivers/crypto/caam/ctrl.c b/drivers/crypto/caam/ctrl.c
index fef39f9f41ee..5d7f73d60515 100644
--- a/drivers/crypto/caam/ctrl.c
+++ b/drivers/crypto/caam/ctrl.c
@@ -281,7 +281,8 @@ static int deinstantiate_rng(struct device *ctrldev, int state_handle_mask)
/* Try to run it through DECO0 */
ret = run_descriptor_deco0(ctrldev, desc, &status);
- if (ret || status) {
+ if (ret ||
+ (status && status != JRSTA_SSRC_JUMP_HALT_CC)) {
dev_err(ctrldev,
"Failed to deinstantiate RNG4 SH%d\n",
sh_idx);
@@ -301,15 +302,13 @@ static int caam_remove(struct platform_device *pdev)
struct device *ctrldev;
struct caam_drv_private *ctrlpriv;
struct caam_ctrl __iomem *ctrl;
- int ring;
ctrldev = &pdev->dev;
ctrlpriv = dev_get_drvdata(ctrldev);
ctrl = (struct caam_ctrl __iomem *)ctrlpriv->ctrl;
- /* Remove platform devices for JobRs */
- for (ring = 0; ring < ctrlpriv->total_jobrs; ring++)
- of_device_unregister(ctrlpriv->jrpdev[ring]);
+ /* Remove platform devices under the crypto node */
+ of_platform_depopulate(ctrldev);
/* De-initialize RNG state handles initialized by this driver. */
if (ctrlpriv->rng4_sh_init)
@@ -418,10 +417,21 @@ DEFINE_SIMPLE_ATTRIBUTE(caam_fops_u32_ro, caam_debugfs_u32_get, NULL, "%llu\n");
DEFINE_SIMPLE_ATTRIBUTE(caam_fops_u64_ro, caam_debugfs_u64_get, NULL, "%llu\n");
#endif
+static const struct of_device_id caam_match[] = {
+ {
+ .compatible = "fsl,sec-v4.0",
+ },
+ {
+ .compatible = "fsl,sec4.0",
+ },
+ {},
+};
+MODULE_DEVICE_TABLE(of, caam_match);
+
/* Probe routine for CAAM top (controller) level */
static int caam_probe(struct platform_device *pdev)
{
- int ret, ring, ridx, rspec, gen_sk, ent_delay = RTSDCTL_ENT_DLY_MIN;
+ int ret, ring, gen_sk, ent_delay = RTSDCTL_ENT_DLY_MIN;
u64 caam_id;
struct device *dev;
struct device_node *nprop, *np;
@@ -597,47 +607,24 @@ static int caam_probe(struct platform_device *pdev)
goto iounmap_ctrl;
}
- /*
- * Detect and enable JobRs
- * First, find out how many ring spec'ed, allocate references
- * for all, then go probe each one.
- */
- rspec = 0;
- for_each_available_child_of_node(nprop, np)
- if (of_device_is_compatible(np, "fsl,sec-v4.0-job-ring") ||
- of_device_is_compatible(np, "fsl,sec4.0-job-ring"))
- rspec++;
-
- ctrlpriv->jrpdev = devm_kcalloc(&pdev->dev, rspec,
- sizeof(*ctrlpriv->jrpdev), GFP_KERNEL);
- if (ctrlpriv->jrpdev == NULL) {
- ret = -ENOMEM;
+ ret = of_platform_populate(nprop, caam_match, NULL, dev);
+ if (ret) {
+ dev_err(dev, "JR platform devices creation error\n");
goto iounmap_ctrl;
}
ring = 0;
- ridx = 0;
- ctrlpriv->total_jobrs = 0;
for_each_available_child_of_node(nprop, np)
if (of_device_is_compatible(np, "fsl,sec-v4.0-job-ring") ||
of_device_is_compatible(np, "fsl,sec4.0-job-ring")) {
- ctrlpriv->jrpdev[ring] =
- of_platform_device_create(np, NULL, dev);
- if (!ctrlpriv->jrpdev[ring]) {
- pr_warn("JR physical index %d: Platform device creation error\n",
- ridx);
- ridx++;
- continue;
- }
ctrlpriv->jr[ring] = (struct caam_job_ring __iomem __force *)
((__force uint8_t *)ctrl +
- (ridx + JR_BLOCK_NUMBER) *
+ (ring + JR_BLOCK_NUMBER) *
BLOCK_OFFSET
);
ctrlpriv->total_jobrs++;
ring++;
- ridx++;
- }
+ }
/* Check to see if QI present. If so, enable */
ctrlpriv->qi_present =
@@ -847,17 +834,6 @@ disable_caam_ipg:
return ret;
}
-static struct of_device_id caam_match[] = {
- {
- .compatible = "fsl,sec-v4.0",
- },
- {
- .compatible = "fsl,sec4.0",
- },
- {},
-};
-MODULE_DEVICE_TABLE(of, caam_match);
-
static struct platform_driver caam_driver = {
.driver = {
.name = "caam",
diff --git a/drivers/crypto/caam/intern.h b/drivers/crypto/caam/intern.h
index e2bcacc1a921..dbed8baeebe5 100644
--- a/drivers/crypto/caam/intern.h
+++ b/drivers/crypto/caam/intern.h
@@ -66,7 +66,6 @@ struct caam_drv_private_jr {
struct caam_drv_private {
struct device *dev;
- struct platform_device **jrpdev; /* Alloc'ed array per sub-device */
struct platform_device *pdev;
/* Physical-presence section */
diff --git a/drivers/firmware/efi/libstub/gop.c b/drivers/firmware/efi/libstub/gop.c
index 932742e4cf23..24c461dea7af 100644
--- a/drivers/firmware/efi/libstub/gop.c
+++ b/drivers/firmware/efi/libstub/gop.c
@@ -149,7 +149,8 @@ setup_gop32(efi_system_table_t *sys_table_arg, struct screen_info *si,
status = __gop_query32(sys_table_arg, gop32, &info, &size,
&current_fb_base);
- if (status == EFI_SUCCESS && (!first_gop || conout_found)) {
+ if (status == EFI_SUCCESS && (!first_gop || conout_found) &&
+ info->pixel_format != PIXEL_BLT_ONLY) {
/*
* Systems that use the UEFI Console Splitter may
* provide multiple GOP devices, not all of which are
@@ -266,7 +267,8 @@ setup_gop64(efi_system_table_t *sys_table_arg, struct screen_info *si,
status = __gop_query64(sys_table_arg, gop64, &info, &size,
&current_fb_base);
- if (status == EFI_SUCCESS && (!first_gop || conout_found)) {
+ if (status == EFI_SUCCESS && (!first_gop || conout_found) &&
+ info->pixel_format != PIXEL_BLT_ONLY) {
/*
* Systems that use the UEFI Console Splitter may
* provide multiple GOP devices, not all of which are
diff --git a/drivers/gpu/drm/etnaviv/etnaviv_gpu.c b/drivers/gpu/drm/etnaviv/etnaviv_gpu.c
index da48819ff2e6..b78d9239e48f 100644
--- a/drivers/gpu/drm/etnaviv/etnaviv_gpu.c
+++ b/drivers/gpu/drm/etnaviv/etnaviv_gpu.c
@@ -1317,7 +1317,7 @@ int etnaviv_gpu_submit(struct etnaviv_gpu *gpu,
if (!fence) {
event_free(gpu, event);
ret = -ENOMEM;
- goto out_pm_put;
+ goto out_unlock;
}
gpu->event[event].fence = fence;
@@ -1357,6 +1357,7 @@ int etnaviv_gpu_submit(struct etnaviv_gpu *gpu,
hangcheck_timer_reset(gpu);
ret = 0;
+out_unlock:
mutex_unlock(&gpu->lock);
out_pm_put:
diff --git a/drivers/gpu/drm/i915/gvt/cfg_space.c b/drivers/gpu/drm/i915/gvt/cfg_space.c
index b7d7721e72fa..40af17ec6312 100644
--- a/drivers/gpu/drm/i915/gvt/cfg_space.c
+++ b/drivers/gpu/drm/i915/gvt/cfg_space.c
@@ -285,9 +285,6 @@ int intel_vgpu_emulate_cfg_write(struct intel_vgpu *vgpu, unsigned int offset,
{
int ret;
- if (vgpu->failsafe)
- return 0;
-
if (WARN_ON(bytes > 4))
return -EINVAL;
diff --git a/drivers/gpu/drm/i915/gvt/execlist.c b/drivers/gpu/drm/i915/gvt/execlist.c
index f1f426a97aa9..d186c157f65f 100644
--- a/drivers/gpu/drm/i915/gvt/execlist.c
+++ b/drivers/gpu/drm/i915/gvt/execlist.c
@@ -775,7 +775,8 @@ static void init_vgpu_execlist(struct intel_vgpu *vgpu, int ring_id)
_EL_OFFSET_STATUS_PTR);
ctx_status_ptr.dw = vgpu_vreg(vgpu, ctx_status_ptr_reg);
- ctx_status_ptr.read_ptr = ctx_status_ptr.write_ptr = 0x7;
+ ctx_status_ptr.read_ptr = 0;
+ ctx_status_ptr.write_ptr = 0x7;
vgpu_vreg(vgpu, ctx_status_ptr_reg) = ctx_status_ptr.dw;
}
diff --git a/drivers/gpu/drm/i915/gvt/firmware.c b/drivers/gpu/drm/i915/gvt/firmware.c
index 933a7c211a1c..dce8d15f706f 100644
--- a/drivers/gpu/drm/i915/gvt/firmware.c
+++ b/drivers/gpu/drm/i915/gvt/firmware.c
@@ -75,11 +75,11 @@ static int expose_firmware_sysfs(struct intel_gvt *gvt)
struct gvt_firmware_header *h;
void *firmware;
void *p;
- unsigned long size;
+ unsigned long size, crc32_start;
int i;
int ret;
- size = sizeof(*h) + info->mmio_size + info->cfg_space_size - 1;
+ size = sizeof(*h) + info->mmio_size + info->cfg_space_size;
firmware = vzalloc(size);
if (!firmware)
return -ENOMEM;
@@ -112,6 +112,9 @@ static int expose_firmware_sysfs(struct intel_gvt *gvt)
memcpy(gvt->firmware.mmio, p, info->mmio_size);
+ crc32_start = offsetof(struct gvt_firmware_header, crc32) + 4;
+ h->crc32 = crc32_le(0, firmware + crc32_start, size - crc32_start);
+
firmware_attr.size = size;
firmware_attr.private = firmware;
@@ -234,7 +237,7 @@ int intel_gvt_load_firmware(struct intel_gvt *gvt)
firmware->mmio = mem;
- sprintf(path, "%s/vid_0x%04x_did_0x%04x_rid_0x%04x.golden_hw_state",
+ sprintf(path, "%s/vid_0x%04x_did_0x%04x_rid_0x%02x.golden_hw_state",
GVT_FIRMWARE_PATH, pdev->vendor, pdev->device,
pdev->revision);
diff --git a/drivers/gpu/drm/i915/gvt/gvt.c b/drivers/gpu/drm/i915/gvt/gvt.c
index 3b9d59e457ba..ef3baa0c4754 100644
--- a/drivers/gpu/drm/i915/gvt/gvt.c
+++ b/drivers/gpu/drm/i915/gvt/gvt.c
@@ -52,6 +52,8 @@ static const struct intel_gvt_ops intel_gvt_ops = {
.vgpu_create = intel_gvt_create_vgpu,
.vgpu_destroy = intel_gvt_destroy_vgpu,
.vgpu_reset = intel_gvt_reset_vgpu,
+ .vgpu_activate = intel_gvt_activate_vgpu,
+ .vgpu_deactivate = intel_gvt_deactivate_vgpu,
};
/**
diff --git a/drivers/gpu/drm/i915/gvt/gvt.h b/drivers/gpu/drm/i915/gvt/gvt.h
index 6dfc48b63b71..becae2fa3b29 100644
--- a/drivers/gpu/drm/i915/gvt/gvt.h
+++ b/drivers/gpu/drm/i915/gvt/gvt.h
@@ -382,7 +382,8 @@ void intel_gvt_destroy_vgpu(struct intel_vgpu *vgpu);
void intel_gvt_reset_vgpu_locked(struct intel_vgpu *vgpu, bool dmlr,
unsigned int engine_mask);
void intel_gvt_reset_vgpu(struct intel_vgpu *vgpu);
-
+void intel_gvt_activate_vgpu(struct intel_vgpu *vgpu);
+void intel_gvt_deactivate_vgpu(struct intel_vgpu *vgpu);
/* validating GM functions */
#define vgpu_gmadr_is_aperture(vgpu, gmadr) \
@@ -449,6 +450,8 @@ struct intel_gvt_ops {
struct intel_vgpu_type *);
void (*vgpu_destroy)(struct intel_vgpu *);
void (*vgpu_reset)(struct intel_vgpu *);
+ void (*vgpu_activate)(struct intel_vgpu *);
+ void (*vgpu_deactivate)(struct intel_vgpu *);
};
diff --git a/drivers/gpu/drm/i915/gvt/kvmgt.c b/drivers/gpu/drm/i915/gvt/kvmgt.c
index d641214578a7..e466259034e2 100644
--- a/drivers/gpu/drm/i915/gvt/kvmgt.c
+++ b/drivers/gpu/drm/i915/gvt/kvmgt.c
@@ -544,6 +544,8 @@ static int intel_vgpu_open(struct mdev_device *mdev)
if (ret)
goto undo_group;
+ intel_gvt_ops->vgpu_activate(vgpu);
+
atomic_set(&vgpu->vdev.released, 0);
return ret;
@@ -569,6 +571,8 @@ static void __intel_vgpu_release(struct intel_vgpu *vgpu)
if (atomic_cmpxchg(&vgpu->vdev.released, 0, 1))
return;
+ intel_gvt_ops->vgpu_deactivate(vgpu);
+
ret = vfio_unregister_notifier(mdev_dev(vgpu->vdev.mdev), VFIO_IOMMU_NOTIFY,
&vgpu->vdev.iommu_notifier);
WARN(ret, "vfio_unregister_notifier for iommu failed: %d\n", ret);
@@ -1340,13 +1344,6 @@ static int kvmgt_guest_init(struct mdev_device *mdev)
static bool kvmgt_guest_exit(struct kvmgt_guest_info *info)
{
- struct intel_vgpu *vgpu = info->vgpu;
-
- if (!info) {
- gvt_vgpu_err("kvmgt_guest_info invalid\n");
- return false;
- }
-
kvm_page_track_unregister_notifier(info->kvm, &info->track_node);
kvm_put_kvm(info->kvm);
kvmgt_protect_table_destroy(info);
diff --git a/drivers/gpu/drm/i915/gvt/vgpu.c b/drivers/gpu/drm/i915/gvt/vgpu.c
index 41cfa5ccae84..649ef280cc9a 100644
--- a/drivers/gpu/drm/i915/gvt/vgpu.c
+++ b/drivers/gpu/drm/i915/gvt/vgpu.c
@@ -72,7 +72,7 @@ static struct {
char *name;
} vgpu_types[] = {
/* Fixed vGPU type table */
- { MB_TO_BYTES(64), MB_TO_BYTES(512), 4, GVT_EDID_1024_768, "8" },
+ { MB_TO_BYTES(64), MB_TO_BYTES(384), 4, GVT_EDID_1024_768, "8" },
{ MB_TO_BYTES(128), MB_TO_BYTES(512), 4, GVT_EDID_1920_1200, "4" },
{ MB_TO_BYTES(256), MB_TO_BYTES(1024), 4, GVT_EDID_1920_1200, "2" },
{ MB_TO_BYTES(512), MB_TO_BYTES(2048), 4, GVT_EDID_1920_1200, "1" },
@@ -179,20 +179,34 @@ static void intel_gvt_update_vgpu_types(struct intel_gvt *gvt)
}
/**
- * intel_gvt_destroy_vgpu - destroy a virtual GPU
+ * intel_gvt_active_vgpu - activate a virtual GPU
* @vgpu: virtual GPU
*
- * This function is called when user wants to destroy a virtual GPU.
+ * This function is called when user wants to activate a virtual GPU.
*
*/
-void intel_gvt_destroy_vgpu(struct intel_vgpu *vgpu)
+void intel_gvt_activate_vgpu(struct intel_vgpu *vgpu)
+{
+ mutex_lock(&vgpu->gvt->lock);
+ vgpu->active = true;
+ mutex_unlock(&vgpu->gvt->lock);
+}
+
+/**
+ * intel_gvt_deactive_vgpu - deactivate a virtual GPU
+ * @vgpu: virtual GPU
+ *
+ * This function is called when user wants to deactivate a virtual GPU.
+ * All virtual GPU runtime information will be destroyed.
+ *
+ */
+void intel_gvt_deactivate_vgpu(struct intel_vgpu *vgpu)
{
struct intel_gvt *gvt = vgpu->gvt;
mutex_lock(&gvt->lock);
vgpu->active = false;
- idr_remove(&gvt->vgpu_idr, vgpu->id);
if (atomic_read(&vgpu->running_workload_num)) {
mutex_unlock(&gvt->lock);
@@ -201,6 +215,26 @@ void intel_gvt_destroy_vgpu(struct intel_vgpu *vgpu)
}
intel_vgpu_stop_schedule(vgpu);
+
+ mutex_unlock(&gvt->lock);
+}
+
+/**
+ * intel_gvt_destroy_vgpu - destroy a virtual GPU
+ * @vgpu: virtual GPU
+ *
+ * This function is called when user wants to destroy a virtual GPU.
+ *
+ */
+void intel_gvt_destroy_vgpu(struct intel_vgpu *vgpu)
+{
+ struct intel_gvt *gvt = vgpu->gvt;
+
+ mutex_lock(&gvt->lock);
+
+ WARN(vgpu->active, "vGPU is still active!\n");
+
+ idr_remove(&gvt->vgpu_idr, vgpu->id);
intel_vgpu_clean_sched_policy(vgpu);
intel_vgpu_clean_gvt_context(vgpu);
intel_vgpu_clean_execlist(vgpu);
@@ -277,7 +311,6 @@ static struct intel_vgpu *__intel_gvt_create_vgpu(struct intel_gvt *gvt,
if (ret)
goto out_clean_shadow_ctx;
- vgpu->active = true;
mutex_unlock(&gvt->lock);
return vgpu;
diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c
index 1c75402a59c1..5c089b3c2a7e 100644
--- a/drivers/gpu/drm/i915/i915_drv.c
+++ b/drivers/gpu/drm/i915/i915_drv.c
@@ -1434,8 +1434,6 @@ static int i915_drm_suspend(struct drm_device *dev)
goto out;
}
- intel_guc_suspend(dev_priv);
-
intel_display_suspend(dev);
intel_dp_mst_suspend(dev);
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index 1e53c31b6826..46fcd8b7080a 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -806,6 +806,7 @@ struct intel_csr {
func(has_resource_streamer); \
func(has_runtime_pm); \
func(has_snoop); \
+ func(unfenced_needs_alignment); \
func(cursor_needs_physical); \
func(hws_needs_physical); \
func(overlay_needs_physical); \
diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index 67b1fc5a0331..fe531f904062 100644
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -4348,6 +4348,8 @@ int i915_gem_suspend(struct drm_i915_private *dev_priv)
i915_gem_context_lost(dev_priv);
mutex_unlock(&dev->struct_mutex);
+ intel_guc_suspend(dev_priv);
+
cancel_delayed_work_sync(&dev_priv->gpu_error.hangcheck_work);
cancel_delayed_work_sync(&dev_priv->gt.retire_work);
diff --git a/drivers/gpu/drm/i915/i915_gem_execbuffer.c b/drivers/gpu/drm/i915/i915_gem_execbuffer.c
index 30e0675fd7da..15a15d00a6bf 100644
--- a/drivers/gpu/drm/i915/i915_gem_execbuffer.c
+++ b/drivers/gpu/drm/i915/i915_gem_execbuffer.c
@@ -888,6 +888,7 @@ i915_gem_execbuffer_reserve(struct intel_engine_cs *engine,
struct list_head ordered_vmas;
struct list_head pinned_vmas;
bool has_fenced_gpu_access = INTEL_GEN(engine->i915) < 4;
+ bool needs_unfenced_map = INTEL_INFO(engine->i915)->unfenced_needs_alignment;
int retry;
vm = list_first_entry(vmas, struct i915_vma, exec_list)->vm;
@@ -908,7 +909,8 @@ i915_gem_execbuffer_reserve(struct intel_engine_cs *engine,
if (!has_fenced_gpu_access)
entry->flags &= ~EXEC_OBJECT_NEEDS_FENCE;
need_fence =
- entry->flags & EXEC_OBJECT_NEEDS_FENCE &&
+ (entry->flags & EXEC_OBJECT_NEEDS_FENCE ||
+ needs_unfenced_map) &&
i915_gem_object_is_tiled(obj);
need_mappable = need_fence || need_reloc_mappable(vma);
diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.c b/drivers/gpu/drm/i915/i915_gem_gtt.c
index 2801a4d56324..96e45a4d5441 100644
--- a/drivers/gpu/drm/i915/i915_gem_gtt.c
+++ b/drivers/gpu/drm/i915/i915_gem_gtt.c
@@ -2704,7 +2704,7 @@ void i915_gem_gtt_finish_pages(struct drm_i915_gem_object *obj,
struct i915_ggtt *ggtt = &dev_priv->ggtt;
if (unlikely(ggtt->do_idle_maps)) {
- if (i915_gem_wait_for_idle(dev_priv, I915_WAIT_LOCKED)) {
+ if (i915_gem_wait_for_idle(dev_priv, 0)) {
DRM_ERROR("Failed to wait for idle; VT'd may hang.\n");
/* Wait a bit, in hopes it avoids the hang */
udelay(10);
diff --git a/drivers/gpu/drm/i915/i915_gem_request.c b/drivers/gpu/drm/i915/i915_gem_request.c
index e7c3c0318ff6..da70bfe97ec5 100644
--- a/drivers/gpu/drm/i915/i915_gem_request.c
+++ b/drivers/gpu/drm/i915/i915_gem_request.c
@@ -37,6 +37,17 @@ static const char *i915_fence_get_driver_name(struct dma_fence *fence)
static const char *i915_fence_get_timeline_name(struct dma_fence *fence)
{
+ /* The timeline struct (as part of the ppgtt underneath a context)
+ * may be freed when the request is no longer in use by the GPU.
+ * We could extend the life of a context to beyond that of all
+ * fences, possibly keeping the hw resource around indefinitely,
+ * or we just give them a false name. Since
+ * dma_fence_ops.get_timeline_name is a debug feature, the occasional
+ * lie seems justifiable.
+ */
+ if (test_bit(DMA_FENCE_FLAG_SIGNALED_BIT, &fence->flags))
+ return "signaled";
+
return to_request(fence)->timeline->common->name;
}
diff --git a/drivers/gpu/drm/i915/i915_gem_shrinker.c b/drivers/gpu/drm/i915/i915_gem_shrinker.c
index d5d2b4c6ed38..70b3832a79dd 100644
--- a/drivers/gpu/drm/i915/i915_gem_shrinker.c
+++ b/drivers/gpu/drm/i915/i915_gem_shrinker.c
@@ -53,6 +53,17 @@ static bool i915_gem_shrinker_lock(struct drm_device *dev, bool *unlock)
BUG();
}
+static void i915_gem_shrinker_unlock(struct drm_device *dev, bool unlock)
+{
+ if (!unlock)
+ return;
+
+ mutex_unlock(&dev->struct_mutex);
+
+ /* expedite the RCU grace period to free some request slabs */
+ synchronize_rcu_expedited();
+}
+
static bool any_vma_pinned(struct drm_i915_gem_object *obj)
{
struct i915_vma *vma;
@@ -232,11 +243,8 @@ i915_gem_shrink(struct drm_i915_private *dev_priv,
intel_runtime_pm_put(dev_priv);
i915_gem_retire_requests(dev_priv);
- if (unlock)
- mutex_unlock(&dev_priv->drm.struct_mutex);
- /* expedite the RCU grace period to free some request slabs */
- synchronize_rcu_expedited();
+ i915_gem_shrinker_unlock(&dev_priv->drm, unlock);
return count;
}
@@ -293,8 +301,7 @@ i915_gem_shrinker_count(struct shrinker *shrinker, struct shrink_control *sc)
count += obj->base.size >> PAGE_SHIFT;
}
- if (unlock)
- mutex_unlock(&dev->struct_mutex);
+ i915_gem_shrinker_unlock(dev, unlock);
return count;
}
@@ -321,8 +328,8 @@ i915_gem_shrinker_scan(struct shrinker *shrinker, struct shrink_control *sc)
sc->nr_to_scan - freed,
I915_SHRINK_BOUND |
I915_SHRINK_UNBOUND);
- if (unlock)
- mutex_unlock(&dev->struct_mutex);
+
+ i915_gem_shrinker_unlock(dev, unlock);
return freed;
}
@@ -364,8 +371,7 @@ i915_gem_shrinker_unlock_uninterruptible(struct drm_i915_private *dev_priv,
struct shrinker_lock_uninterruptible *slu)
{
dev_priv->mm.interruptible = slu->was_interruptible;
- if (slu->unlock)
- mutex_unlock(&dev_priv->drm.struct_mutex);
+ i915_gem_shrinker_unlock(&dev_priv->drm, slu->unlock);
}
static int
diff --git a/drivers/gpu/drm/i915/i915_pci.c b/drivers/gpu/drm/i915/i915_pci.c
index ecb487b5356f..9bbbd4e83e3c 100644
--- a/drivers/gpu/drm/i915/i915_pci.c
+++ b/drivers/gpu/drm/i915/i915_pci.c
@@ -60,6 +60,7 @@
.has_overlay = 1, .overlay_needs_physical = 1, \
.has_gmch_display = 1, \
.hws_needs_physical = 1, \
+ .unfenced_needs_alignment = 1, \
.ring_mask = RENDER_RING, \
GEN_DEFAULT_PIPEOFFSETS, \
CURSOR_OFFSETS
@@ -101,6 +102,7 @@ static const struct intel_device_info intel_i915g_info = {
.platform = INTEL_I915G, .cursor_needs_physical = 1,
.has_overlay = 1, .overlay_needs_physical = 1,
.hws_needs_physical = 1,
+ .unfenced_needs_alignment = 1,
};
static const struct intel_device_info intel_i915gm_info = {
@@ -112,6 +114,7 @@ static const struct intel_device_info intel_i915gm_info = {
.supports_tv = 1,
.has_fbc = 1,
.hws_needs_physical = 1,
+ .unfenced_needs_alignment = 1,
};
static const struct intel_device_info intel_i945g_info = {
@@ -120,6 +123,7 @@ static const struct intel_device_info intel_i945g_info = {
.has_hotplug = 1, .cursor_needs_physical = 1,
.has_overlay = 1, .overlay_needs_physical = 1,
.hws_needs_physical = 1,
+ .unfenced_needs_alignment = 1,
};
static const struct intel_device_info intel_i945gm_info = {
@@ -130,6 +134,7 @@ static const struct intel_device_info intel_i945gm_info = {
.supports_tv = 1,
.has_fbc = 1,
.hws_needs_physical = 1,
+ .unfenced_needs_alignment = 1,
};
static const struct intel_device_info intel_g33_info = {
diff --git a/drivers/gpu/drm/i915/i915_perf.c b/drivers/gpu/drm/i915/i915_perf.c
index a1b7eec58be2..70964ca9251e 100644
--- a/drivers/gpu/drm/i915/i915_perf.c
+++ b/drivers/gpu/drm/i915/i915_perf.c
@@ -1705,7 +1705,7 @@ i915_perf_open_ioctl_locked(struct drm_i915_private *dev_priv,
*/
if (WARN_ON(stream->sample_flags != props->sample_flags)) {
ret = -ENODEV;
- goto err_alloc;
+ goto err_flags;
}
list_add(&stream->link, &dev_priv->perf.streams);
@@ -1728,6 +1728,7 @@ i915_perf_open_ioctl_locked(struct drm_i915_private *dev_priv,
err_open:
list_del(&stream->link);
+err_flags:
if (stream->ops->destroy)
stream->ops->destroy(stream);
err_alloc:
@@ -1793,6 +1794,11 @@ static int read_properties_unlocked(struct drm_i915_private *dev_priv,
if (ret)
return ret;
+ if (id == 0 || id >= DRM_I915_PERF_PROP_MAX) {
+ DRM_DEBUG("Unknown i915 perf property ID\n");
+ return -EINVAL;
+ }
+
switch ((enum drm_i915_perf_property_id)id) {
case DRM_I915_PERF_PROP_CTX_HANDLE:
props->single_context = 1;
@@ -1862,9 +1868,8 @@ static int read_properties_unlocked(struct drm_i915_private *dev_priv,
props->oa_periodic = true;
props->oa_period_exponent = value;
break;
- default:
+ case DRM_I915_PERF_PROP_MAX:
MISSING_CASE(id);
- DRM_DEBUG("Unknown i915 perf property ID\n");
return -EINVAL;
}
diff --git a/drivers/gpu/drm/i915/intel_lrc.c b/drivers/gpu/drm/i915/intel_lrc.c
index 471af3b480ad..47517a02f0a4 100644
--- a/drivers/gpu/drm/i915/intel_lrc.c
+++ b/drivers/gpu/drm/i915/intel_lrc.c
@@ -670,15 +670,14 @@ static void execlists_submit_request(struct drm_i915_gem_request *request)
static struct intel_engine_cs *
pt_lock_engine(struct i915_priotree *pt, struct intel_engine_cs *locked)
{
- struct intel_engine_cs *engine;
+ struct intel_engine_cs *engine =
+ container_of(pt, struct drm_i915_gem_request, priotree)->engine;
+
+ GEM_BUG_ON(!locked);
- engine = container_of(pt,
- struct drm_i915_gem_request,
- priotree)->engine;
if (engine != locked) {
- if (locked)
- spin_unlock_irq(&locked->timeline->lock);
- spin_lock_irq(&engine->timeline->lock);
+ spin_unlock(&locked->timeline->lock);
+ spin_lock(&engine->timeline->lock);
}
return engine;
@@ -686,7 +685,7 @@ pt_lock_engine(struct i915_priotree *pt, struct intel_engine_cs *locked)
static void execlists_schedule(struct drm_i915_gem_request *request, int prio)
{
- struct intel_engine_cs *engine = NULL;
+ struct intel_engine_cs *engine;
struct i915_dependency *dep, *p;
struct i915_dependency stack;
LIST_HEAD(dfs);
@@ -720,26 +719,23 @@ static void execlists_schedule(struct drm_i915_gem_request *request, int prio)
list_for_each_entry_safe(dep, p, &dfs, dfs_link) {
struct i915_priotree *pt = dep->signaler;
- list_for_each_entry(p, &pt->signalers_list, signal_link)
+ /* Within an engine, there can be no cycle, but we may
+ * refer to the same dependency chain multiple times
+ * (redundant dependencies are not eliminated) and across
+ * engines.
+ */
+ list_for_each_entry(p, &pt->signalers_list, signal_link) {
+ GEM_BUG_ON(p->signaler->priority < pt->priority);
if (prio > READ_ONCE(p->signaler->priority))
list_move_tail(&p->dfs_link, &dfs);
+ }
list_safe_reset_next(dep, p, dfs_link);
- if (!RB_EMPTY_NODE(&pt->node))
- continue;
-
- engine = pt_lock_engine(pt, engine);
-
- /* If it is not already in the rbtree, we can update the
- * priority inplace and skip over it (and its dependencies)
- * if it is referenced *again* as we descend the dfs.
- */
- if (prio > pt->priority && RB_EMPTY_NODE(&pt->node)) {
- pt->priority = prio;
- list_del_init(&dep->dfs_link);
- }
}
+ engine = request->engine;
+ spin_lock_irq(&engine->timeline->lock);
+
/* Fifo and depth-first replacement ensure our deps execute before us */
list_for_each_entry_safe_reverse(dep, p, &dfs, dfs_link) {
struct i915_priotree *pt = dep->signaler;
@@ -751,16 +747,15 @@ static void execlists_schedule(struct drm_i915_gem_request *request, int prio)
if (prio <= pt->priority)
continue;
- GEM_BUG_ON(RB_EMPTY_NODE(&pt->node));
-
pt->priority = prio;
- rb_erase(&pt->node, &engine->execlist_queue);
- if (insert_request(pt, &engine->execlist_queue))
- engine->execlist_first = &pt->node;
+ if (!RB_EMPTY_NODE(&pt->node)) {
+ rb_erase(&pt->node, &engine->execlist_queue);
+ if (insert_request(pt, &engine->execlist_queue))
+ engine->execlist_first = &pt->node;
+ }
}
- if (engine)
- spin_unlock_irq(&engine->timeline->lock);
+ spin_unlock_irq(&engine->timeline->lock);
/* XXX Do we need to preempt to make room for us and our deps? */
}
@@ -1440,7 +1435,9 @@ static void reset_common_ring(struct intel_engine_cs *engine,
GEM_BUG_ON(request->ctx != port[0].request->ctx);
/* Reset WaIdleLiteRestore:bdw,skl as well */
- request->tail = request->wa_tail - WA_TAIL_DWORDS * sizeof(u32);
+ request->tail =
+ intel_ring_wrap(request->ring,
+ request->wa_tail - WA_TAIL_DWORDS*sizeof(u32));
}
static int intel_logical_ring_emit_pdps(struct drm_i915_gem_request *req)
diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.h b/drivers/gpu/drm/i915/intel_ringbuffer.h
index 13dccb18cd43..8cb2078c5bfc 100644
--- a/drivers/gpu/drm/i915/intel_ringbuffer.h
+++ b/drivers/gpu/drm/i915/intel_ringbuffer.h
@@ -521,11 +521,17 @@ static inline void intel_ring_advance(struct intel_ring *ring)
*/
}
+static inline u32
+intel_ring_wrap(const struct intel_ring *ring, u32 pos)
+{
+ return pos & (ring->size - 1);
+}
+
static inline u32 intel_ring_offset(struct intel_ring *ring, void *addr)
{
/* Don't write ring->size (equivalent to 0) as that hangs some GPUs. */
u32 offset = addr - ring->vaddr;
- return offset & (ring->size - 1);
+ return intel_ring_wrap(ring, offset);
}
int __intel_ring_space(int head, int tail, int size);
diff --git a/drivers/gpu/drm/nouveau/nv50_display.c b/drivers/gpu/drm/nouveau/nv50_display.c
index 0b4440ffbeae..a9182d5e6011 100644
--- a/drivers/gpu/drm/nouveau/nv50_display.c
+++ b/drivers/gpu/drm/nouveau/nv50_display.c
@@ -995,7 +995,6 @@ nv50_wndw_atomic_destroy_state(struct drm_plane *plane,
{
struct nv50_wndw_atom *asyw = nv50_wndw_atom(state);
__drm_atomic_helper_plane_destroy_state(&asyw->state);
- dma_fence_put(asyw->state.fence);
kfree(asyw);
}
@@ -1007,7 +1006,6 @@ nv50_wndw_atomic_duplicate_state(struct drm_plane *plane)
if (!(asyw = kmalloc(sizeof(*asyw), GFP_KERNEL)))
return NULL;
__drm_atomic_helper_plane_duplicate_state(plane, &asyw->state);
- asyw->state.fence = NULL;
asyw->interval = 1;
asyw->sema = armw->sema;
asyw->ntfy = armw->ntfy;
@@ -2036,6 +2034,7 @@ nv50_head_atomic_check_mode(struct nv50_head *head, struct nv50_head_atom *asyh)
u32 vbackp = (mode->vtotal - mode->vsync_end) * vscan / ilace;
u32 hfrontp = mode->hsync_start - mode->hdisplay;
u32 vfrontp = (mode->vsync_start - mode->vdisplay) * vscan / ilace;
+ u32 blankus;
struct nv50_head_mode *m = &asyh->mode;
m->h.active = mode->htotal;
@@ -2049,9 +2048,10 @@ nv50_head_atomic_check_mode(struct nv50_head *head, struct nv50_head_atom *asyh)
m->v.blanks = m->v.active - vfrontp - 1;
/*XXX: Safe underestimate, even "0" works */
- m->v.blankus = (m->v.active - mode->vdisplay - 2) * m->h.active;
- m->v.blankus *= 1000;
- m->v.blankus /= mode->clock;
+ blankus = (m->v.active - mode->vdisplay - 2) * m->h.active;
+ blankus *= 1000;
+ blankus /= mode->clock;
+ m->v.blankus = blankus;
if (mode->flags & DRM_MODE_FLAG_INTERLACE) {
m->v.blank2e = m->v.active + m->v.synce + vbackp;
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/device/base.c b/drivers/gpu/drm/nouveau/nvkm/engine/device/base.c
index 273562dd6bbd..3b86a7399567 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/device/base.c
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/device/base.c
@@ -714,7 +714,7 @@ nv4a_chipset = {
.i2c = nv04_i2c_new,
.imem = nv40_instmem_new,
.mc = nv44_mc_new,
- .mmu = nv44_mmu_new,
+ .mmu = nv04_mmu_new,
.pci = nv40_pci_new,
.therm = nv40_therm_new,
.timer = nv41_timer_new,
@@ -2271,6 +2271,35 @@ nv136_chipset = {
.fifo = gp100_fifo_new,
};
+static const struct nvkm_device_chip
+nv137_chipset = {
+ .name = "GP107",
+ .bar = gf100_bar_new,
+ .bios = nvkm_bios_new,
+ .bus = gf100_bus_new,
+ .devinit = gm200_devinit_new,
+ .fb = gp102_fb_new,
+ .fuse = gm107_fuse_new,
+ .gpio = gk104_gpio_new,
+ .i2c = gm200_i2c_new,
+ .ibus = gm200_ibus_new,
+ .imem = nv50_instmem_new,
+ .ltc = gp100_ltc_new,
+ .mc = gp100_mc_new,
+ .mmu = gf100_mmu_new,
+ .pci = gp100_pci_new,
+ .pmu = gp102_pmu_new,
+ .timer = gk20a_timer_new,
+ .top = gk104_top_new,
+ .ce[0] = gp102_ce_new,
+ .ce[1] = gp102_ce_new,
+ .ce[2] = gp102_ce_new,
+ .ce[3] = gp102_ce_new,
+ .disp = gp102_disp_new,
+ .dma = gf119_dma_new,
+ .fifo = gp100_fifo_new,
+};
+
static int
nvkm_device_event_ctor(struct nvkm_object *object, void *data, u32 size,
struct nvkm_notify *notify)
@@ -2708,6 +2737,7 @@ nvkm_device_ctor(const struct nvkm_device_func *func,
case 0x132: device->chip = &nv132_chipset; break;
case 0x134: device->chip = &nv134_chipset; break;
case 0x136: device->chip = &nv136_chipset; break;
+ case 0x137: device->chip = &nv137_chipset; break;
default:
nvdev_error(device, "unknown chipset (%08x)\n", boot0);
goto done;
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/mpeg/nv31.c b/drivers/gpu/drm/nouveau/nvkm/engine/mpeg/nv31.c
index 003ac915eaad..8a8895246d26 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/mpeg/nv31.c
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/mpeg/nv31.c
@@ -198,7 +198,7 @@ nv31_mpeg_intr(struct nvkm_engine *engine)
}
if (type == 0x00000010) {
- if (!nv31_mpeg_mthd(mpeg, mthd, data))
+ if (nv31_mpeg_mthd(mpeg, mthd, data))
show &= ~0x01000000;
}
}
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/mpeg/nv44.c b/drivers/gpu/drm/nouveau/nvkm/engine/mpeg/nv44.c
index e536f37e24b0..c3cf02ed468e 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/mpeg/nv44.c
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/mpeg/nv44.c
@@ -172,7 +172,7 @@ nv44_mpeg_intr(struct nvkm_engine *engine)
}
if (type == 0x00000010) {
- if (!nv44_mpeg_mthd(subdev->device, mthd, data))
+ if (nv44_mpeg_mthd(subdev->device, mthd, data))
show &= ~0x01000000;
}
}
diff --git a/drivers/gpu/drm/udl/udl_transfer.c b/drivers/gpu/drm/udl/udl_transfer.c
index 917dcb978c2c..0c87b1ac6b68 100644
--- a/drivers/gpu/drm/udl/udl_transfer.c
+++ b/drivers/gpu/drm/udl/udl_transfer.c
@@ -14,6 +14,7 @@
#include <linux/slab.h>
#include <linux/fb.h>
#include <linux/prefetch.h>
+#include <asm/unaligned.h>
#include <drm/drmP.h>
#include "udl_drv.h"
@@ -163,7 +164,7 @@ static void udl_compress_hline16(
const u8 *const start = pixel;
const uint16_t repeating_pixel_val16 = pixel_val16;
- *(uint16_t *)cmd = cpu_to_be16(pixel_val16);
+ put_unaligned_be16(pixel_val16, cmd);
cmd += 2;
pixel += bpp;
diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c
index 63ec1993eaaa..d162f0dc76e3 100644
--- a/drivers/hid/hid-core.c
+++ b/drivers/hid/hid-core.c
@@ -819,8 +819,7 @@ static int hid_scan_report(struct hid_device *hid)
hid->group = HID_GROUP_WACOM;
break;
case USB_VENDOR_ID_SYNAPTICS:
- if (hid->group == HID_GROUP_GENERIC ||
- hid->group == HID_GROUP_MULTITOUCH_WIN_8)
+ if (hid->group == HID_GROUP_GENERIC)
if ((parser->scan_flags & HID_SCAN_FLAG_VENDOR_SPECIFIC)
&& (parser->scan_flags & HID_SCAN_FLAG_GD_POINTER))
/*
@@ -2096,6 +2095,7 @@ static const struct hid_device_id hid_have_special_driver[] = {
{ HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UGEE_TABLET_45) },
{ HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_DRAWIMAGE_G3) },
{ HID_USB_DEVICE(USB_VENDOR_ID_UGTIZER, USB_DEVICE_ID_UGTIZER_TABLET_GP0610) },
+ { HID_USB_DEVICE(USB_VENDOR_ID_UGEE, USB_DEVICE_ID_UGEE_TABLET_EX07S) },
{ HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_SMARTJOY_PLUS) },
{ HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_SUPER_JOY_BOX_3) },
{ HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_DUAL_USB_JOYPAD) },
diff --git a/drivers/hid/hid-ids.h b/drivers/hid/hid-ids.h
index 4e2648c86c8c..b26c030926c1 100644
--- a/drivers/hid/hid-ids.h
+++ b/drivers/hid/hid-ids.h
@@ -1028,6 +1028,9 @@
#define USB_DEVICE_ID_UGEE_TABLET_45 0x0045
#define USB_DEVICE_ID_YIYNOVA_TABLET 0x004d
+#define USB_VENDOR_ID_UGEE 0x28bd
+#define USB_DEVICE_ID_UGEE_TABLET_EX07S 0x0071
+
#define USB_VENDOR_ID_UNITEC 0x227d
#define USB_DEVICE_ID_UNITEC_USB_TOUCH_0709 0x0709
#define USB_DEVICE_ID_UNITEC_USB_TOUCH_0A19 0x0a19
diff --git a/drivers/hid/hid-uclogic.c b/drivers/hid/hid-uclogic.c
index 1509d7287ff3..e3e6e5c893cc 100644
--- a/drivers/hid/hid-uclogic.c
+++ b/drivers/hid/hid-uclogic.c
@@ -977,6 +977,7 @@ static int uclogic_probe(struct hid_device *hdev,
}
break;
case USB_DEVICE_ID_UGTIZER_TABLET_GP0610:
+ case USB_DEVICE_ID_UGEE_TABLET_EX07S:
/* If this is the pen interface */
if (intf->cur_altsetting->desc.bInterfaceNumber == 1) {
rc = uclogic_tablet_enable(hdev);
@@ -1069,6 +1070,7 @@ static const struct hid_device_id uclogic_devices[] = {
{ HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UGEE_TABLET_45) },
{ HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_DRAWIMAGE_G3) },
{ HID_USB_DEVICE(USB_VENDOR_ID_UGTIZER, USB_DEVICE_ID_UGTIZER_TABLET_GP0610) },
+ { HID_USB_DEVICE(USB_VENDOR_ID_UGEE, USB_DEVICE_ID_UGEE_TABLET_EX07S) },
{ }
};
MODULE_DEVICE_TABLE(hid, uclogic_devices);
diff --git a/drivers/iio/accel/hid-sensor-accel-3d.c b/drivers/iio/accel/hid-sensor-accel-3d.c
index ca5759c0c318..43a6cb078193 100644
--- a/drivers/iio/accel/hid-sensor-accel-3d.c
+++ b/drivers/iio/accel/hid-sensor-accel-3d.c
@@ -370,10 +370,12 @@ static int hid_accel_3d_probe(struct platform_device *pdev)
name = "accel_3d";
channel_spec = accel_3d_channels;
channel_size = sizeof(accel_3d_channels);
+ indio_dev->num_channels = ARRAY_SIZE(accel_3d_channels);
} else {
name = "gravity";
channel_spec = gravity_channels;
channel_size = sizeof(gravity_channels);
+ indio_dev->num_channels = ARRAY_SIZE(gravity_channels);
}
ret = hid_sensor_parse_common_attributes(hsdev, hsdev->usage,
&accel_state->common_attributes);
@@ -395,7 +397,6 @@ static int hid_accel_3d_probe(struct platform_device *pdev)
goto error_free_dev_mem;
}
- indio_dev->num_channels = ARRAY_SIZE(accel_3d_channels);
indio_dev->dev.parent = &pdev->dev;
indio_dev->info = &accel_3d_info;
indio_dev->name = name;
diff --git a/drivers/iio/common/cros_ec_sensors/cros_ec_sensors.c b/drivers/iio/common/cros_ec_sensors/cros_ec_sensors.c
index d6c372bb433b..c17596f7ed2c 100644
--- a/drivers/iio/common/cros_ec_sensors/cros_ec_sensors.c
+++ b/drivers/iio/common/cros_ec_sensors/cros_ec_sensors.c
@@ -61,7 +61,7 @@ static int cros_ec_sensors_read(struct iio_dev *indio_dev,
ret = st->core.read_ec_sensors_data(indio_dev, 1 << idx, &data);
if (ret < 0)
break;
-
+ ret = IIO_VAL_INT;
*val = data;
break;
case IIO_CHAN_INFO_CALIBBIAS:
@@ -76,7 +76,7 @@ static int cros_ec_sensors_read(struct iio_dev *indio_dev,
for (i = CROS_EC_SENSOR_X; i < CROS_EC_SENSOR_MAX_AXIS; i++)
st->core.calib[i] =
st->core.resp->sensor_offset.offset[i];
-
+ ret = IIO_VAL_INT;
*val = st->core.calib[idx];
break;
case IIO_CHAN_INFO_SCALE:
diff --git a/drivers/iio/common/hid-sensors/hid-sensor-attributes.c b/drivers/iio/common/hid-sensors/hid-sensor-attributes.c
index 7afdac42ed42..01e02b9926d4 100644
--- a/drivers/iio/common/hid-sensors/hid-sensor-attributes.c
+++ b/drivers/iio/common/hid-sensors/hid-sensor-attributes.c
@@ -379,6 +379,8 @@ int hid_sensor_parse_common_attributes(struct hid_sensor_hub_device *hsdev,
{
struct hid_sensor_hub_attribute_info timestamp;
+ s32 value;
+ int ret;
hid_sensor_get_reporting_interval(hsdev, usage_id, st);
@@ -417,6 +419,14 @@ int hid_sensor_parse_common_attributes(struct hid_sensor_hub_device *hsdev,
st->sensitivity.index, st->sensitivity.report_id,
timestamp.index, timestamp.report_id);
+ ret = sensor_hub_get_feature(hsdev,
+ st->power_state.report_id,
+ st->power_state.index, sizeof(value), &value);
+ if (ret < 0)
+ return ret;
+ if (value < 0)
+ return -EINVAL;
+
return 0;
}
EXPORT_SYMBOL(hid_sensor_parse_common_attributes);
diff --git a/drivers/iio/gyro/bmg160_core.c b/drivers/iio/gyro/bmg160_core.c
index f7fcfa886f72..821919dd245b 100644
--- a/drivers/iio/gyro/bmg160_core.c
+++ b/drivers/iio/gyro/bmg160_core.c
@@ -27,6 +27,7 @@
#include <linux/iio/trigger_consumer.h>
#include <linux/iio/triggered_buffer.h>
#include <linux/regmap.h>
+#include <linux/delay.h>
#include "bmg160.h"
#define BMG160_IRQ_NAME "bmg160_event"
@@ -52,6 +53,9 @@
#define BMG160_DEF_BW 100
#define BMG160_REG_PMU_BW_RES BIT(7)
+#define BMG160_GYRO_REG_RESET 0x14
+#define BMG160_GYRO_RESET_VAL 0xb6
+
#define BMG160_REG_INT_MAP_0 0x17
#define BMG160_INT_MAP_0_BIT_ANY BIT(1)
@@ -236,6 +240,14 @@ static int bmg160_chip_init(struct bmg160_data *data)
int ret;
unsigned int val;
+ /*
+ * Reset chip to get it in a known good state. A delay of 30ms after
+ * reset is required according to the datasheet.
+ */
+ regmap_write(data->regmap, BMG160_GYRO_REG_RESET,
+ BMG160_GYRO_RESET_VAL);
+ usleep_range(30000, 30700);
+
ret = regmap_read(data->regmap, BMG160_REG_CHIP_ID, &val);
if (ret < 0) {
dev_err(dev, "Error reading reg_chip_id\n");
diff --git a/drivers/iio/industrialio-core.c b/drivers/iio/industrialio-core.c
index d18ded45bedd..3ff91e02fee3 100644
--- a/drivers/iio/industrialio-core.c
+++ b/drivers/iio/industrialio-core.c
@@ -610,10 +610,9 @@ static ssize_t __iio_format_value(char *buf, size_t len, unsigned int type,
tmp0 = (int)div_s64_rem(tmp, 1000000000, &tmp1);
return snprintf(buf, len, "%d.%09u", tmp0, abs(tmp1));
case IIO_VAL_FRACTIONAL_LOG2:
- tmp = (s64)vals[0] * 1000000000LL >> vals[1];
- tmp1 = do_div(tmp, 1000000000LL);
- tmp0 = tmp;
- return snprintf(buf, len, "%d.%09u", tmp0, tmp1);
+ tmp = shift_right((s64)vals[0] * 1000000000LL, vals[1]);
+ tmp0 = (int)div_s64_rem(tmp, 1000000000LL, &tmp1);
+ return snprintf(buf, len, "%d.%09u", tmp0, abs(tmp1));
case IIO_VAL_INT_MULTIPLE:
{
int i;
diff --git a/drivers/iio/pressure/st_pressure_core.c b/drivers/iio/pressure/st_pressure_core.c
index 5f2680855552..fd0edca0e656 100644
--- a/drivers/iio/pressure/st_pressure_core.c
+++ b/drivers/iio/pressure/st_pressure_core.c
@@ -457,6 +457,7 @@ static const struct st_sensor_settings st_press_sensors_settings[] = {
.addr_stat_drdy = ST_SENSORS_DEFAULT_STAT_ADDR,
},
.multi_read_bit = true,
+ .bootime = 2,
},
};
diff --git a/drivers/infiniband/ulp/isert/ib_isert.c b/drivers/infiniband/ulp/isert/ib_isert.c
index 91cbe86b25c8..fcbed35e95a8 100644
--- a/drivers/infiniband/ulp/isert/ib_isert.c
+++ b/drivers/infiniband/ulp/isert/ib_isert.c
@@ -817,6 +817,7 @@ isert_post_recvm(struct isert_conn *isert_conn, u32 count)
rx_wr->sg_list = &rx_desc->rx_sg;
rx_wr->num_sge = 1;
rx_wr->next = rx_wr + 1;
+ rx_desc->in_use = false;
}
rx_wr--;
rx_wr->next = NULL; /* mark end of work requests list */
@@ -835,6 +836,15 @@ isert_post_recv(struct isert_conn *isert_conn, struct iser_rx_desc *rx_desc)
struct ib_recv_wr *rx_wr_failed, rx_wr;
int ret;
+ if (!rx_desc->in_use) {
+ /*
+ * if the descriptor is not in-use we already reposted it
+ * for recv, so just silently return
+ */
+ return 0;
+ }
+
+ rx_desc->in_use = false;
rx_wr.wr_cqe = &rx_desc->rx_cqe;
rx_wr.sg_list = &rx_desc->rx_sg;
rx_wr.num_sge = 1;
@@ -1397,6 +1407,8 @@ isert_recv_done(struct ib_cq *cq, struct ib_wc *wc)
return;
}
+ rx_desc->in_use = true;
+
ib_dma_sync_single_for_cpu(ib_dev, rx_desc->dma_addr,
ISER_RX_PAYLOAD_SIZE, DMA_FROM_DEVICE);
@@ -1659,10 +1671,23 @@ isert_rdma_write_done(struct ib_cq *cq, struct ib_wc *wc)
ret = isert_check_pi_status(cmd, isert_cmd->rw.sig->sig_mr);
isert_rdma_rw_ctx_destroy(isert_cmd, isert_conn);
- if (ret)
- transport_send_check_condition_and_sense(cmd, cmd->pi_err, 0);
- else
- isert_put_response(isert_conn->conn, isert_cmd->iscsi_cmd);
+ if (ret) {
+ /*
+ * transport_generic_request_failure() expects to have
+ * plus two references to handle queue-full, so re-add
+ * one here as target-core will have already dropped
+ * it after the first isert_put_datain() callback.
+ */
+ kref_get(&cmd->cmd_kref);
+ transport_generic_request_failure(cmd, cmd->pi_err);
+ } else {
+ /*
+ * XXX: isert_put_response() failure is not retried.
+ */
+ ret = isert_put_response(isert_conn->conn, isert_cmd->iscsi_cmd);
+ if (ret)
+ pr_warn_ratelimited("isert_put_response() ret: %d\n", ret);
+ }
}
static void
@@ -1699,13 +1724,15 @@ isert_rdma_read_done(struct ib_cq *cq, struct ib_wc *wc)
cmd->i_state = ISTATE_RECEIVED_LAST_DATAOUT;
spin_unlock_bh(&cmd->istate_lock);
- if (ret) {
- target_put_sess_cmd(se_cmd);
- transport_send_check_condition_and_sense(se_cmd,
- se_cmd->pi_err, 0);
- } else {
+ /*
+ * transport_generic_request_failure() will drop the extra
+ * se_cmd->cmd_kref reference after T10-PI error, and handle
+ * any non-zero ->queue_status() callback error retries.
+ */
+ if (ret)
+ transport_generic_request_failure(se_cmd, se_cmd->pi_err);
+ else
target_execute_cmd(se_cmd);
- }
}
static void
@@ -2171,26 +2198,28 @@ isert_put_datain(struct iscsi_conn *conn, struct iscsi_cmd *cmd)
chain_wr = &isert_cmd->tx_desc.send_wr;
}
- isert_rdma_rw_ctx_post(isert_cmd, isert_conn, cqe, chain_wr);
- isert_dbg("Cmd: %p posted RDMA_WRITE for iSER Data READ\n", isert_cmd);
- return 1;
+ rc = isert_rdma_rw_ctx_post(isert_cmd, isert_conn, cqe, chain_wr);
+ isert_dbg("Cmd: %p posted RDMA_WRITE for iSER Data READ rc: %d\n",
+ isert_cmd, rc);
+ return rc;
}
static int
isert_get_dataout(struct iscsi_conn *conn, struct iscsi_cmd *cmd, bool recovery)
{
struct isert_cmd *isert_cmd = iscsit_priv_cmd(cmd);
+ int ret;
isert_dbg("Cmd: %p RDMA_READ data_length: %u write_data_done: %u\n",
isert_cmd, cmd->se_cmd.data_length, cmd->write_data_done);
isert_cmd->tx_desc.tx_cqe.done = isert_rdma_read_done;
- isert_rdma_rw_ctx_post(isert_cmd, conn->context,
- &isert_cmd->tx_desc.tx_cqe, NULL);
+ ret = isert_rdma_rw_ctx_post(isert_cmd, conn->context,
+ &isert_cmd->tx_desc.tx_cqe, NULL);
- isert_dbg("Cmd: %p posted RDMA_READ memory for ISER Data WRITE\n",
- isert_cmd);
- return 0;
+ isert_dbg("Cmd: %p posted RDMA_READ memory for ISER Data WRITE rc: %d\n",
+ isert_cmd, ret);
+ return ret;
}
static int
diff --git a/drivers/infiniband/ulp/isert/ib_isert.h b/drivers/infiniband/ulp/isert/ib_isert.h
index c02ada57d7f5..87d994de8c91 100644
--- a/drivers/infiniband/ulp/isert/ib_isert.h
+++ b/drivers/infiniband/ulp/isert/ib_isert.h
@@ -60,7 +60,7 @@
#define ISER_RX_PAD_SIZE (ISCSI_DEF_MAX_RECV_SEG_LEN + 4096 - \
(ISER_RX_PAYLOAD_SIZE + sizeof(u64) + sizeof(struct ib_sge) + \
- sizeof(struct ib_cqe)))
+ sizeof(struct ib_cqe) + sizeof(bool)))
#define ISCSI_ISER_SG_TABLESIZE 256
@@ -85,6 +85,7 @@ struct iser_rx_desc {
u64 dma_addr;
struct ib_sge rx_sg;
struct ib_cqe rx_cqe;
+ bool in_use;
char pad[ISER_RX_PAD_SIZE];
} __packed;
diff --git a/drivers/input/joystick/xpad.c b/drivers/input/joystick/xpad.c
index 155fcb3b6230..153b1ee13e03 100644
--- a/drivers/input/joystick/xpad.c
+++ b/drivers/input/joystick/xpad.c
@@ -202,6 +202,7 @@ static const struct xpad_device {
{ 0x1430, 0x8888, "TX6500+ Dance Pad (first generation)", MAP_DPAD_TO_BUTTONS, XTYPE_XBOX },
{ 0x146b, 0x0601, "BigBen Interactive XBOX 360 Controller", 0, XTYPE_XBOX360 },
{ 0x1532, 0x0037, "Razer Sabertooth", 0, XTYPE_XBOX360 },
+ { 0x1532, 0x0a03, "Razer Wildcat", 0, XTYPE_XBOXONE },
{ 0x15e4, 0x3f00, "Power A Mini Pro Elite", 0, XTYPE_XBOX360 },
{ 0x15e4, 0x3f0a, "Xbox Airflo wired controller", 0, XTYPE_XBOX360 },
{ 0x15e4, 0x3f10, "Batarang Xbox 360 controller", 0, XTYPE_XBOX360 },
@@ -326,6 +327,7 @@ static struct usb_device_id xpad_table[] = {
XPAD_XBOX360_VENDOR(0x1430), /* RedOctane X-Box 360 controllers */
XPAD_XBOX360_VENDOR(0x146b), /* BigBen Interactive Controllers */
XPAD_XBOX360_VENDOR(0x1532), /* Razer Sabertooth */
+ XPAD_XBOXONE_VENDOR(0x1532), /* Razer Wildcat */
XPAD_XBOX360_VENDOR(0x15e4), /* Numark X-Box 360 controllers */
XPAD_XBOX360_VENDOR(0x162e), /* Joytech X-Box 360 controllers */
XPAD_XBOX360_VENDOR(0x1689), /* Razer Onza */
diff --git a/drivers/irqchip/irq-imx-gpcv2.c b/drivers/irqchip/irq-imx-gpcv2.c
index 15af9a9753e5..2d203b422129 100644
--- a/drivers/irqchip/irq-imx-gpcv2.c
+++ b/drivers/irqchip/irq-imx-gpcv2.c
@@ -230,6 +230,8 @@ static int __init imx_gpcv2_irqchip_init(struct device_node *node,
return -ENOMEM;
}
+ raw_spin_lock_init(&cd->rlock);
+
cd->gpc_base = of_iomap(node, 0);
if (!cd->gpc_base) {
pr_err("fsl-gpcv2: unable to map gpc registers\n");
diff --git a/drivers/md/dm-cache-metadata.c b/drivers/md/dm-cache-metadata.c
index e4c2c1a1e993..6735c8d6a445 100644
--- a/drivers/md/dm-cache-metadata.c
+++ b/drivers/md/dm-cache-metadata.c
@@ -932,7 +932,7 @@ static int blocks_are_clean_separate_dirty(struct dm_cache_metadata *cmd,
*result = true;
r = dm_bitset_cursor_begin(&cmd->dirty_info, cmd->dirty_root,
- from_cblock(begin), &cmd->dirty_cursor);
+ from_cblock(cmd->cache_blocks), &cmd->dirty_cursor);
if (r) {
DMERR("%s: dm_bitset_cursor_begin for dirty failed", __func__);
return r;
@@ -959,14 +959,16 @@ static int blocks_are_clean_separate_dirty(struct dm_cache_metadata *cmd,
return 0;
}
+ begin = to_cblock(from_cblock(begin) + 1);
+ if (begin == end)
+ break;
+
r = dm_bitset_cursor_next(&cmd->dirty_cursor);
if (r) {
DMERR("%s: dm_bitset_cursor_next for dirty failed", __func__);
dm_bitset_cursor_end(&cmd->dirty_cursor);
return r;
}
-
- begin = to_cblock(from_cblock(begin) + 1);
}
dm_bitset_cursor_end(&cmd->dirty_cursor);
diff --git a/drivers/md/dm-raid.c b/drivers/md/dm-raid.c
index f8564d63982f..1e217ba84d09 100644
--- a/drivers/md/dm-raid.c
+++ b/drivers/md/dm-raid.c
@@ -3726,7 +3726,7 @@ static int raid_preresume(struct dm_target *ti)
return r;
/* Resize bitmap to adjust to changed region size (aka MD bitmap chunksize) */
- if (test_bit(RT_FLAG_RS_BITMAP_LOADED, &rs->runtime_flags) &&
+ if (test_bit(RT_FLAG_RS_BITMAP_LOADED, &rs->runtime_flags) && mddev->bitmap &&
mddev->bitmap_info.chunksize != to_bytes(rs->requested_bitmap_chunk_sectors)) {
r = bitmap_resize(mddev->bitmap, mddev->dev_sectors,
to_bytes(rs->requested_bitmap_chunk_sectors), 0);
diff --git a/drivers/md/dm-rq.c b/drivers/md/dm-rq.c
index 28955b94d2b2..0b081d170087 100644
--- a/drivers/md/dm-rq.c
+++ b/drivers/md/dm-rq.c
@@ -755,6 +755,7 @@ static int dm_mq_queue_rq(struct blk_mq_hw_ctx *hctx,
/* Undo dm_start_request() before requeuing */
rq_end_stats(md, rq);
rq_completed(md, rq_data_dir(rq), false);
+ blk_mq_delay_run_hw_queue(hctx, 100/*ms*/);
return BLK_MQ_RQ_QUEUE_BUSY;
}
diff --git a/drivers/md/dm-verity-fec.c b/drivers/md/dm-verity-fec.c
index 0f0eb8a3d922..78f36012eaca 100644
--- a/drivers/md/dm-verity-fec.c
+++ b/drivers/md/dm-verity-fec.c
@@ -146,8 +146,6 @@ static int fec_decode_bufs(struct dm_verity *v, struct dm_verity_fec_io *fio,
block = fec_buffer_rs_block(v, fio, n, i);
res = fec_decode_rs8(v, fio, block, &par[offset], neras);
if (res < 0) {
- dm_bufio_release(buf);
-
r = res;
goto error;
}
@@ -172,6 +170,8 @@ static int fec_decode_bufs(struct dm_verity *v, struct dm_verity_fec_io *fio,
done:
r = corrected;
error:
+ dm_bufio_release(buf);
+
if (r < 0 && neras)
DMERR_LIMIT("%s: FEC %llu: failed to correct: %d",
v->data_dev->name, (unsigned long long)rsb, r);
@@ -269,7 +269,7 @@ static int fec_read_bufs(struct dm_verity *v, struct dm_verity_io *io,
&is_zero) == 0) {
/* skip known zero blocks entirely */
if (is_zero)
- continue;
+ goto done;
/*
* skip if we have already found the theoretical
@@ -439,6 +439,13 @@ int verity_fec_decode(struct dm_verity *v, struct dm_verity_io *io,
if (!verity_fec_is_enabled(v))
return -EOPNOTSUPP;
+ if (fio->level >= DM_VERITY_FEC_MAX_RECURSION) {
+ DMWARN_LIMIT("%s: FEC: recursion too deep", v->data_dev->name);
+ return -EIO;
+ }
+
+ fio->level++;
+
if (type == DM_VERITY_BLOCK_TYPE_METADATA)
block += v->data_blocks;
@@ -470,7 +477,7 @@ int verity_fec_decode(struct dm_verity *v, struct dm_verity_io *io,
if (r < 0) {
r = fec_decode_rsb(v, io, fio, rsb, offset, true);
if (r < 0)
- return r;
+ goto done;
}
if (dest)
@@ -480,6 +487,8 @@ int verity_fec_decode(struct dm_verity *v, struct dm_verity_io *io,
r = verity_for_bv_block(v, io, iter, fec_bv_copy);
}
+done:
+ fio->level--;
return r;
}
@@ -520,6 +529,7 @@ void verity_fec_init_io(struct dm_verity_io *io)
memset(fio->bufs, 0, sizeof(fio->bufs));
fio->nbufs = 0;
fio->output = NULL;
+ fio->level = 0;
}
/*
diff --git a/drivers/md/dm-verity-fec.h b/drivers/md/dm-verity-fec.h
index 7fa0298b995e..bb31ce87a933 100644
--- a/drivers/md/dm-verity-fec.h
+++ b/drivers/md/dm-verity-fec.h
@@ -27,6 +27,9 @@
#define DM_VERITY_FEC_BUF_MAX \
(1 << (PAGE_SHIFT - DM_VERITY_FEC_BUF_RS_BITS))
+/* maximum recursion level for verity_fec_decode */
+#define DM_VERITY_FEC_MAX_RECURSION 4
+
#define DM_VERITY_OPT_FEC_DEV "use_fec_from_device"
#define DM_VERITY_OPT_FEC_BLOCKS "fec_blocks"
#define DM_VERITY_OPT_FEC_START "fec_start"
@@ -58,6 +61,7 @@ struct dm_verity_fec_io {
unsigned nbufs; /* number of buffers allocated */
u8 *output; /* buffer for corrected output */
size_t output_pos;
+ unsigned level; /* recursion level */
};
#ifdef CONFIG_DM_VERITY_FEC
diff --git a/drivers/net/can/ifi_canfd/ifi_canfd.c b/drivers/net/can/ifi_canfd/ifi_canfd.c
index 138f5ae75c0b..4d1fe8d95042 100644
--- a/drivers/net/can/ifi_canfd/ifi_canfd.c
+++ b/drivers/net/can/ifi_canfd/ifi_canfd.c
@@ -557,7 +557,7 @@ static int ifi_canfd_poll(struct napi_struct *napi, int quota)
int work_done = 0;
u32 stcmd = readl(priv->base + IFI_CANFD_STCMD);
- u32 rxstcmd = readl(priv->base + IFI_CANFD_STCMD);
+ u32 rxstcmd = readl(priv->base + IFI_CANFD_RXSTCMD);
u32 errctr = readl(priv->base + IFI_CANFD_ERROR_CTR);
/* Handle bus state changes */
diff --git a/drivers/net/can/rcar/rcar_can.c b/drivers/net/can/rcar/rcar_can.c
index caed4e6960f8..11662f479e76 100644
--- a/drivers/net/can/rcar/rcar_can.c
+++ b/drivers/net/can/rcar/rcar_can.c
@@ -826,8 +826,7 @@ static int rcar_can_probe(struct platform_device *pdev)
devm_can_led_init(ndev);
- dev_info(&pdev->dev, "device registered (regs @ %p, IRQ%d)\n",
- priv->regs, ndev->irq);
+ dev_info(&pdev->dev, "device registered (IRQ%d)\n", ndev->irq);
return 0;
fail_candev:
diff --git a/drivers/net/team/team.c b/drivers/net/team/team.c
index 65c056e2f705..450b6a9fdec7 100644
--- a/drivers/net/team/team.c
+++ b/drivers/net/team/team.c
@@ -990,7 +990,7 @@ static void team_port_disable(struct team *team,
#define TEAM_ENC_FEATURES (NETIF_F_HW_CSUM | NETIF_F_SG | \
NETIF_F_RXCSUM | NETIF_F_ALL_TSO)
-static void ___team_compute_features(struct team *team)
+static void __team_compute_features(struct team *team)
{
struct team_port *port;
u32 vlan_features = TEAM_VLAN_FEATURES & NETIF_F_ALL_FOR_ALL;
@@ -1023,16 +1023,10 @@ static void ___team_compute_features(struct team *team)
team->dev->priv_flags |= IFF_XMIT_DST_RELEASE;
}
-static void __team_compute_features(struct team *team)
-{
- ___team_compute_features(team);
- netdev_change_features(team->dev);
-}
-
static void team_compute_features(struct team *team)
{
mutex_lock(&team->lock);
- ___team_compute_features(team);
+ __team_compute_features(team);
mutex_unlock(&team->lock);
netdev_change_features(team->dev);
}
@@ -1641,6 +1635,7 @@ static void team_uninit(struct net_device *dev)
team_notify_peers_fini(team);
team_queue_override_fini(team);
mutex_unlock(&team->lock);
+ netdev_change_features(dev);
}
static void team_destructor(struct net_device *dev)
@@ -1928,6 +1923,10 @@ static int team_add_slave(struct net_device *dev, struct net_device *port_dev)
mutex_lock(&team->lock);
err = team_port_add(team, port_dev);
mutex_unlock(&team->lock);
+
+ if (!err)
+ netdev_change_features(dev);
+
return err;
}
@@ -1939,6 +1938,10 @@ static int team_del_slave(struct net_device *dev, struct net_device *port_dev)
mutex_lock(&team->lock);
err = team_port_del(team, port_dev);
mutex_unlock(&team->lock);
+
+ if (!err)
+ netdev_change_features(dev);
+
return err;
}
diff --git a/drivers/net/usb/qmi_wwan.c b/drivers/net/usb/qmi_wwan.c
index adbed261cc8a..a3ed8115747c 100644
--- a/drivers/net/usb/qmi_wwan.c
+++ b/drivers/net/usb/qmi_wwan.c
@@ -1202,7 +1202,7 @@ static const struct usb_device_id products[] = {
{QMI_FIXED_INTF(0x2357, 0x9000, 4)}, /* TP-LINK MA260 */
{QMI_QUIRK_SET_DTR(0x1bc7, 0x1040, 2)}, /* Telit LE922A */
{QMI_FIXED_INTF(0x1bc7, 0x1200, 5)}, /* Telit LE920 */
- {QMI_FIXED_INTF(0x1bc7, 0x1201, 2)}, /* Telit LE920 */
+ {QMI_QUIRK_SET_DTR(0x1bc7, 0x1201, 2)}, /* Telit LE920, LE920A4 */
{QMI_FIXED_INTF(0x1c9e, 0x9b01, 3)}, /* XS Stick W100-2 from 4G Systems */
{QMI_FIXED_INTF(0x0b3c, 0xc000, 4)}, /* Olivetti Olicard 100 */
{QMI_FIXED_INTF(0x0b3c, 0xc001, 4)}, /* Olivetti Olicard 120 */
diff --git a/drivers/net/usb/usbnet.c b/drivers/net/usb/usbnet.c
index 1cc945cbeaa3..79048e72c1bd 100644
--- a/drivers/net/usb/usbnet.c
+++ b/drivers/net/usb/usbnet.c
@@ -1975,7 +1975,7 @@ static int __usbnet_read_cmd(struct usbnet *dev, u8 cmd, u8 reqtype,
" value=0x%04x index=0x%04x size=%d\n",
cmd, reqtype, value, index, size);
- if (data) {
+ if (size) {
buf = kmalloc(size, GFP_KERNEL);
if (!buf)
goto out;
@@ -1984,8 +1984,13 @@ static int __usbnet_read_cmd(struct usbnet *dev, u8 cmd, u8 reqtype,
err = usb_control_msg(dev->udev, usb_rcvctrlpipe(dev->udev, 0),
cmd, reqtype, value, index, buf, size,
USB_CTRL_GET_TIMEOUT);
- if (err > 0 && err <= size)
- memcpy(data, buf, err);
+ if (err > 0 && err <= size) {
+ if (data)
+ memcpy(data, buf, err);
+ else
+ netdev_dbg(dev->net,
+ "Huh? Data requested but thrown away.\n");
+ }
kfree(buf);
out:
return err;
@@ -2006,7 +2011,13 @@ static int __usbnet_write_cmd(struct usbnet *dev, u8 cmd, u8 reqtype,
buf = kmemdup(data, size, GFP_KERNEL);
if (!buf)
goto out;
- }
+ } else {
+ if (size) {
+ WARN_ON_ONCE(1);
+ err = -EINVAL;
+ goto out;
+ }
+ }
err = usb_control_msg(dev->udev, usb_sndctrlpipe(dev->udev, 0),
cmd, reqtype, value, index, buf, size,
diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c
index b0d241d110ec..666ada6130ab 100644
--- a/drivers/net/virtio_net.c
+++ b/drivers/net/virtio_net.c
@@ -2240,14 +2240,8 @@ static bool virtnet_validate_features(struct virtio_device *vdev)
#define MIN_MTU ETH_MIN_MTU
#define MAX_MTU ETH_MAX_MTU
-static int virtnet_probe(struct virtio_device *vdev)
+static int virtnet_validate(struct virtio_device *vdev)
{
- int i, err;
- struct net_device *dev;
- struct virtnet_info *vi;
- u16 max_queue_pairs;
- int mtu;
-
if (!vdev->config->get) {
dev_err(&vdev->dev, "%s failure: config access disabled\n",
__func__);
@@ -2257,6 +2251,25 @@ static int virtnet_probe(struct virtio_device *vdev)
if (!virtnet_validate_features(vdev))
return -EINVAL;
+ if (virtio_has_feature(vdev, VIRTIO_NET_F_MTU)) {
+ int mtu = virtio_cread16(vdev,
+ offsetof(struct virtio_net_config,
+ mtu));
+ if (mtu < MIN_MTU)
+ __virtio_clear_bit(vdev, VIRTIO_NET_F_MTU);
+ }
+
+ return 0;
+}
+
+static int virtnet_probe(struct virtio_device *vdev)
+{
+ int i, err;
+ struct net_device *dev;
+ struct virtnet_info *vi;
+ u16 max_queue_pairs;
+ int mtu;
+
/* Find if host supports multiqueue virtio_net device */
err = virtio_cread_feature(vdev, VIRTIO_NET_F_MQ,
struct virtio_net_config,
@@ -2372,11 +2385,20 @@ static int virtnet_probe(struct virtio_device *vdev)
offsetof(struct virtio_net_config,
mtu));
if (mtu < dev->min_mtu) {
- __virtio_clear_bit(vdev, VIRTIO_NET_F_MTU);
- } else {
- dev->mtu = mtu;
- dev->max_mtu = mtu;
+ /* Should never trigger: MTU was previously validated
+ * in virtnet_validate.
+ */
+ dev_err(&vdev->dev, "device MTU appears to have changed "
+ "it is now %d < %d", mtu, dev->min_mtu);
+ goto free_stats;
}
+
+ dev->mtu = mtu;
+ dev->max_mtu = mtu;
+
+ /* TODO: size buffers correctly in this case. */
+ if (dev->mtu > ETH_DATA_LEN)
+ vi->big_packets = true;
}
if (vi->any_header_sg)
@@ -2554,6 +2576,7 @@ static struct virtio_driver virtio_net_driver = {
.driver.name = KBUILD_MODNAME,
.driver.owner = THIS_MODULE,
.id_table = id_table,
+ .validate = virtnet_validate,
.probe = virtnet_probe,
.remove = virtnet_remove,
.config_changed = virtnet_config_changed,
diff --git a/drivers/nvme/host/core.c b/drivers/nvme/host/core.c
index 9b3b57fef446..9583a5f58a1d 100644
--- a/drivers/nvme/host/core.c
+++ b/drivers/nvme/host/core.c
@@ -270,7 +270,7 @@ static inline int nvme_setup_discard(struct nvme_ns *ns, struct request *req,
memset(cmnd, 0, sizeof(*cmnd));
cmnd->dsm.opcode = nvme_cmd_dsm;
cmnd->dsm.nsid = cpu_to_le32(ns->ns_id);
- cmnd->dsm.nr = segments - 1;
+ cmnd->dsm.nr = cpu_to_le32(segments - 1);
cmnd->dsm.attributes = cpu_to_le32(NVME_DSMGMT_AD);
req->special_vec.bv_page = virt_to_page(range);
diff --git a/drivers/nvme/target/admin-cmd.c b/drivers/nvme/target/admin-cmd.c
index a7bcff45f437..76450b0c55f1 100644
--- a/drivers/nvme/target/admin-cmd.c
+++ b/drivers/nvme/target/admin-cmd.c
@@ -100,7 +100,7 @@ static u16 nvmet_get_smart_log(struct nvmet_req *req,
u16 status;
WARN_ON(req == NULL || slog == NULL);
- if (req->cmd->get_log_page.nsid == 0xFFFFFFFF)
+ if (req->cmd->get_log_page.nsid == cpu_to_le32(0xFFFFFFFF))
status = nvmet_get_smart_log_all(req, slog);
else
status = nvmet_get_smart_log_nsid(req, slog);
diff --git a/drivers/nvme/target/io-cmd.c b/drivers/nvme/target/io-cmd.c
index 4195115c7e54..6b0baa9caab9 100644
--- a/drivers/nvme/target/io-cmd.c
+++ b/drivers/nvme/target/io-cmd.c
@@ -180,7 +180,7 @@ static void nvmet_execute_write_zeroes(struct nvmet_req *req)
sector = le64_to_cpu(write_zeroes->slba) <<
(req->ns->blksize_shift - 9);
- nr_sector = (((sector_t)le32_to_cpu(write_zeroes->length)) <<
+ nr_sector = (((sector_t)le16_to_cpu(write_zeroes->length)) <<
(req->ns->blksize_shift - 9)) + 1;
if (__blkdev_issue_zeroout(req->ns->bdev, sector, nr_sector,
@@ -230,7 +230,7 @@ int nvmet_parse_io_cmd(struct nvmet_req *req)
return 0;
case nvme_cmd_dsm:
req->execute = nvmet_execute_dsm;
- req->data_len = le32_to_cpu(cmd->dsm.nr + 1) *
+ req->data_len = (le32_to_cpu(cmd->dsm.nr) + 1) *
sizeof(struct nvme_dsm_range);
return 0;
case nvme_cmd_write_zeroes:
diff --git a/drivers/pci/dwc/Kconfig b/drivers/pci/dwc/Kconfig
index dfb8a69afc28..d2d2ba5b8a68 100644
--- a/drivers/pci/dwc/Kconfig
+++ b/drivers/pci/dwc/Kconfig
@@ -89,6 +89,7 @@ config PCI_HISI
depends on PCI_MSI_IRQ_DOMAIN
select PCIEPORTBUS
select PCIE_DW_HOST
+ select PCI_HOST_COMMON
help
Say Y here if you want PCIe controller support on HiSilicon
Hip05 and Hip06 SoCs
diff --git a/drivers/pci/dwc/pcie-artpec6.c b/drivers/pci/dwc/pcie-artpec6.c
index fcd3ef845883..6d23683c0892 100644
--- a/drivers/pci/dwc/pcie-artpec6.c
+++ b/drivers/pci/dwc/pcie-artpec6.c
@@ -234,6 +234,9 @@ static int artpec6_add_pcie_port(struct artpec6_pcie *artpec6_pcie,
return 0;
}
+static const struct dw_pcie_ops dw_pcie_ops = {
+};
+
static int artpec6_pcie_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
@@ -252,6 +255,7 @@ static int artpec6_pcie_probe(struct platform_device *pdev)
return -ENOMEM;
pci->dev = dev;
+ pci->ops = &dw_pcie_ops;
artpec6_pcie->pci = pci;
diff --git a/drivers/pci/dwc/pcie-designware-plat.c b/drivers/pci/dwc/pcie-designware-plat.c
index b6c832ba39dd..f20d494922ab 100644
--- a/drivers/pci/dwc/pcie-designware-plat.c
+++ b/drivers/pci/dwc/pcie-designware-plat.c
@@ -86,6 +86,9 @@ static int dw_plat_add_pcie_port(struct pcie_port *pp,
return 0;
}
+static const struct dw_pcie_ops dw_pcie_ops = {
+};
+
static int dw_plat_pcie_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
@@ -103,6 +106,7 @@ static int dw_plat_pcie_probe(struct platform_device *pdev)
return -ENOMEM;
pci->dev = dev;
+ pci->ops = &dw_pcie_ops;
dw_plat_pcie->pci = pci;
diff --git a/drivers/pci/host/pci-thunder-pem.c b/drivers/pci/host/pci-thunder-pem.c
index b89c373555c5..6e031b522529 100644
--- a/drivers/pci/host/pci-thunder-pem.c
+++ b/drivers/pci/host/pci-thunder-pem.c
@@ -375,7 +375,6 @@ static void thunder_pem_legacy_fw(struct acpi_pci_root *root,
index -= node * PEM_MAX_DOM_IN_NODE;
res_pem->start = PEM_RES_BASE | FIELD_PREP(PEM_NODE_MASK, node) |
FIELD_PREP(PEM_INDX_MASK, index);
- res_pem->end = res_pem->start + SZ_16M - 1;
res_pem->flags = IORESOURCE_MEM;
}
@@ -399,8 +398,15 @@ static int thunder_pem_acpi_init(struct pci_config_window *cfg)
*/
if (ret) {
thunder_pem_legacy_fw(root, res_pem);
- /* Reserve PEM-specific resources and PCI configuration space */
+ /*
+ * Reserve 64K size PEM specific resources. The full 16M range
+ * size is required for thunder_pem_init() call.
+ */
+ res_pem->end = res_pem->start + SZ_64K - 1;
thunder_pem_reserve_range(dev, root->segment, res_pem);
+ res_pem->end = res_pem->start + SZ_16M - 1;
+
+ /* Reserve PCI configuration space as well. */
thunder_pem_reserve_range(dev, root->segment, &cfg->res);
}
diff --git a/drivers/pinctrl/core.c b/drivers/pinctrl/core.c
index d69046537b75..32822b0d9cd0 100644
--- a/drivers/pinctrl/core.c
+++ b/drivers/pinctrl/core.c
@@ -2010,29 +2010,57 @@ out_err:
return ERR_PTR(ret);
}
-static int pinctrl_create_and_start(struct pinctrl_dev *pctldev)
+static int pinctrl_claim_hogs(struct pinctrl_dev *pctldev)
{
pctldev->p = create_pinctrl(pctldev->dev, pctldev);
- if (!IS_ERR(pctldev->p)) {
- kref_get(&pctldev->p->users);
- pctldev->hog_default =
- pinctrl_lookup_state(pctldev->p, PINCTRL_STATE_DEFAULT);
- if (IS_ERR(pctldev->hog_default)) {
- dev_dbg(pctldev->dev,
- "failed to lookup the default state\n");
- } else {
- if (pinctrl_select_state(pctldev->p,
- pctldev->hog_default))
- dev_err(pctldev->dev,
- "failed to select default state\n");
- }
+ if (PTR_ERR(pctldev->p) == -ENODEV) {
+ dev_dbg(pctldev->dev, "no hogs found\n");
- pctldev->hog_sleep =
- pinctrl_lookup_state(pctldev->p,
- PINCTRL_STATE_SLEEP);
- if (IS_ERR(pctldev->hog_sleep))
- dev_dbg(pctldev->dev,
- "failed to lookup the sleep state\n");
+ return 0;
+ }
+
+ if (IS_ERR(pctldev->p)) {
+ dev_err(pctldev->dev, "error claiming hogs: %li\n",
+ PTR_ERR(pctldev->p));
+
+ return PTR_ERR(pctldev->p);
+ }
+
+ kref_get(&pctldev->p->users);
+ pctldev->hog_default =
+ pinctrl_lookup_state(pctldev->p, PINCTRL_STATE_DEFAULT);
+ if (IS_ERR(pctldev->hog_default)) {
+ dev_dbg(pctldev->dev,
+ "failed to lookup the default state\n");
+ } else {
+ if (pinctrl_select_state(pctldev->p,
+ pctldev->hog_default))
+ dev_err(pctldev->dev,
+ "failed to select default state\n");
+ }
+
+ pctldev->hog_sleep =
+ pinctrl_lookup_state(pctldev->p,
+ PINCTRL_STATE_SLEEP);
+ if (IS_ERR(pctldev->hog_sleep))
+ dev_dbg(pctldev->dev,
+ "failed to lookup the sleep state\n");
+
+ return 0;
+}
+
+int pinctrl_enable(struct pinctrl_dev *pctldev)
+{
+ int error;
+
+ error = pinctrl_claim_hogs(pctldev);
+ if (error) {
+ dev_err(pctldev->dev, "could not claim hogs: %i\n",
+ error);
+ mutex_destroy(&pctldev->mutex);
+ kfree(pctldev);
+
+ return error;
}
mutex_lock(&pinctrldev_list_mutex);
@@ -2043,6 +2071,7 @@ static int pinctrl_create_and_start(struct pinctrl_dev *pctldev)
return 0;
}
+EXPORT_SYMBOL_GPL(pinctrl_enable);
/**
* pinctrl_register() - register a pin controller device
@@ -2065,25 +2094,30 @@ struct pinctrl_dev *pinctrl_register(struct pinctrl_desc *pctldesc,
if (IS_ERR(pctldev))
return pctldev;
- error = pinctrl_create_and_start(pctldev);
- if (error) {
- mutex_destroy(&pctldev->mutex);
- kfree(pctldev);
-
+ error = pinctrl_enable(pctldev);
+ if (error)
return ERR_PTR(error);
- }
return pctldev;
}
EXPORT_SYMBOL_GPL(pinctrl_register);
+/**
+ * pinctrl_register_and_init() - register and init pin controller device
+ * @pctldesc: descriptor for this pin controller
+ * @dev: parent device for this pin controller
+ * @driver_data: private pin controller data for this pin controller
+ * @pctldev: pin controller device
+ *
+ * Note that pinctrl_enable() still needs to be manually called after
+ * this once the driver is ready.
+ */
int pinctrl_register_and_init(struct pinctrl_desc *pctldesc,
struct device *dev, void *driver_data,
struct pinctrl_dev **pctldev)
{
struct pinctrl_dev *p;
- int error;
p = pinctrl_init_controller(pctldesc, dev, driver_data);
if (IS_ERR(p))
@@ -2097,15 +2131,6 @@ int pinctrl_register_and_init(struct pinctrl_desc *pctldesc,
*/
*pctldev = p;
- error = pinctrl_create_and_start(p);
- if (error) {
- mutex_destroy(&p->mutex);
- kfree(p);
- *pctldev = NULL;
-
- return error;
- }
-
return 0;
}
EXPORT_SYMBOL_GPL(pinctrl_register_and_init);
diff --git a/drivers/pinctrl/freescale/pinctrl-imx.c b/drivers/pinctrl/freescale/pinctrl-imx.c
index a7ace9e1ad81..74bd90dfd7b1 100644
--- a/drivers/pinctrl/freescale/pinctrl-imx.c
+++ b/drivers/pinctrl/freescale/pinctrl-imx.c
@@ -790,7 +790,7 @@ int imx_pinctrl_probe(struct platform_device *pdev,
dev_info(&pdev->dev, "initialized IMX pinctrl driver\n");
- return 0;
+ return pinctrl_enable(ipctl->pctl);
free:
imx_free_resources(ipctl);
diff --git a/drivers/pinctrl/intel/pinctrl-cherryview.c b/drivers/pinctrl/intel/pinctrl-cherryview.c
index f80134e3e0b6..9ff790174906 100644
--- a/drivers/pinctrl/intel/pinctrl-cherryview.c
+++ b/drivers/pinctrl/intel/pinctrl-cherryview.c
@@ -13,6 +13,7 @@
* published by the Free Software Foundation.
*/
+#include <linux/dmi.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/init.h>
@@ -1524,10 +1525,31 @@ static void chv_gpio_irq_handler(struct irq_desc *desc)
chained_irq_exit(chip, desc);
}
+/*
+ * Certain machines seem to hardcode Linux IRQ numbers in their ACPI
+ * tables. Since we leave GPIOs that are not capable of generating
+ * interrupts out of the irqdomain the numbering will be different and
+ * cause devices using the hardcoded IRQ numbers fail. In order not to
+ * break such machines we will only mask pins from irqdomain if the machine
+ * is not listed below.
+ */
+static const struct dmi_system_id chv_no_valid_mask[] = {
+ {
+ /* See https://bugzilla.kernel.org/show_bug.cgi?id=194945 */
+ .ident = "Acer Chromebook (CYAN)",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "GOOGLE"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "Edgar"),
+ DMI_MATCH(DMI_BIOS_DATE, "05/21/2016"),
+ },
+ }
+};
+
static int chv_gpio_probe(struct chv_pinctrl *pctrl, int irq)
{
const struct chv_gpio_pinrange *range;
struct gpio_chip *chip = &pctrl->chip;
+ bool need_valid_mask = !dmi_check_system(chv_no_valid_mask);
int ret, i, offset;
*chip = chv_gpio_chip;
@@ -1536,7 +1558,7 @@ static int chv_gpio_probe(struct chv_pinctrl *pctrl, int irq)
chip->label = dev_name(pctrl->dev);
chip->parent = pctrl->dev;
chip->base = -1;
- chip->irq_need_valid_mask = true;
+ chip->irq_need_valid_mask = need_valid_mask;
ret = devm_gpiochip_add_data(pctrl->dev, chip, pctrl);
if (ret) {
@@ -1567,7 +1589,7 @@ static int chv_gpio_probe(struct chv_pinctrl *pctrl, int irq)
intsel &= CHV_PADCTRL0_INTSEL_MASK;
intsel >>= CHV_PADCTRL0_INTSEL_SHIFT;
- if (intsel >= pctrl->community->nirqs)
+ if (need_valid_mask && intsel >= pctrl->community->nirqs)
clear_bit(i, chip->irq_valid_mask);
}
diff --git a/drivers/pinctrl/pinctrl-single.c b/drivers/pinctrl/pinctrl-single.c
index 8b2d45e85bae..9c267dcda094 100644
--- a/drivers/pinctrl/pinctrl-single.c
+++ b/drivers/pinctrl/pinctrl-single.c
@@ -1781,7 +1781,7 @@ static int pcs_probe(struct platform_device *pdev)
dev_info(pcs->dev, "%i pins at pa %p size %u\n",
pcs->desc.npins, pcs->base, pcs->size);
- return 0;
+ return pinctrl_enable(pcs->pctl);
free:
pcs_free_resources(pcs);
diff --git a/drivers/pinctrl/samsung/pinctrl-exynos.c b/drivers/pinctrl/samsung/pinctrl-exynos.c
index f9b49967f512..63e51b56a22a 100644
--- a/drivers/pinctrl/samsung/pinctrl-exynos.c
+++ b/drivers/pinctrl/samsung/pinctrl-exynos.c
@@ -1468,82 +1468,82 @@ const struct samsung_pin_ctrl exynos5420_pin_ctrl[] __initconst = {
/* pin banks of exynos5433 pin-controller - ALIVE */
static const struct samsung_pin_bank_data exynos5433_pin_banks0[] __initconst = {
- EXYNOS_PIN_BANK_EINTW(8, 0x000, "gpa0", 0x00),
- EXYNOS_PIN_BANK_EINTW(8, 0x020, "gpa1", 0x04),
- EXYNOS_PIN_BANK_EINTW(8, 0x040, "gpa2", 0x08),
- EXYNOS_PIN_BANK_EINTW(8, 0x060, "gpa3", 0x0c),
- EXYNOS_PIN_BANK_EINTW_EXT(8, 0x020, "gpf1", 0x1004, 1),
- EXYNOS_PIN_BANK_EINTW_EXT(4, 0x040, "gpf2", 0x1008, 1),
- EXYNOS_PIN_BANK_EINTW_EXT(4, 0x060, "gpf3", 0x100c, 1),
- EXYNOS_PIN_BANK_EINTW_EXT(8, 0x080, "gpf4", 0x1010, 1),
- EXYNOS_PIN_BANK_EINTW_EXT(8, 0x0a0, "gpf5", 0x1014, 1),
+ EXYNOS5433_PIN_BANK_EINTW(8, 0x000, "gpa0", 0x00),
+ EXYNOS5433_PIN_BANK_EINTW(8, 0x020, "gpa1", 0x04),
+ EXYNOS5433_PIN_BANK_EINTW(8, 0x040, "gpa2", 0x08),
+ EXYNOS5433_PIN_BANK_EINTW(8, 0x060, "gpa3", 0x0c),
+ EXYNOS5433_PIN_BANK_EINTW_EXT(8, 0x020, "gpf1", 0x1004, 1),
+ EXYNOS5433_PIN_BANK_EINTW_EXT(4, 0x040, "gpf2", 0x1008, 1),
+ EXYNOS5433_PIN_BANK_EINTW_EXT(4, 0x060, "gpf3", 0x100c, 1),
+ EXYNOS5433_PIN_BANK_EINTW_EXT(8, 0x080, "gpf4", 0x1010, 1),
+ EXYNOS5433_PIN_BANK_EINTW_EXT(8, 0x0a0, "gpf5", 0x1014, 1),
};
/* pin banks of exynos5433 pin-controller - AUD */
static const struct samsung_pin_bank_data exynos5433_pin_banks1[] __initconst = {
- EXYNOS_PIN_BANK_EINTG(7, 0x000, "gpz0", 0x00),
- EXYNOS_PIN_BANK_EINTG(4, 0x020, "gpz1", 0x04),
+ EXYNOS5433_PIN_BANK_EINTG(7, 0x000, "gpz0", 0x00),
+ EXYNOS5433_PIN_BANK_EINTG(4, 0x020, "gpz1", 0x04),
};
/* pin banks of exynos5433 pin-controller - CPIF */
static const struct samsung_pin_bank_data exynos5433_pin_banks2[] __initconst = {
- EXYNOS_PIN_BANK_EINTG(2, 0x000, "gpv6", 0x00),
+ EXYNOS5433_PIN_BANK_EINTG(2, 0x000, "gpv6", 0x00),
};
/* pin banks of exynos5433 pin-controller - eSE */
static const struct samsung_pin_bank_data exynos5433_pin_banks3[] __initconst = {
- EXYNOS_PIN_BANK_EINTG(3, 0x000, "gpj2", 0x00),
+ EXYNOS5433_PIN_BANK_EINTG(3, 0x000, "gpj2", 0x00),
};
/* pin banks of exynos5433 pin-controller - FINGER */
static const struct samsung_pin_bank_data exynos5433_pin_banks4[] __initconst = {
- EXYNOS_PIN_BANK_EINTG(4, 0x000, "gpd5", 0x00),
+ EXYNOS5433_PIN_BANK_EINTG(4, 0x000, "gpd5", 0x00),
};
/* pin banks of exynos5433 pin-controller - FSYS */
static const struct samsung_pin_bank_data exynos5433_pin_banks5[] __initconst = {
- EXYNOS_PIN_BANK_EINTG(6, 0x000, "gph1", 0x00),
- EXYNOS_PIN_BANK_EINTG(7, 0x020, "gpr4", 0x04),
- EXYNOS_PIN_BANK_EINTG(5, 0x040, "gpr0", 0x08),
- EXYNOS_PIN_BANK_EINTG(8, 0x060, "gpr1", 0x0c),
- EXYNOS_PIN_BANK_EINTG(2, 0x080, "gpr2", 0x10),
- EXYNOS_PIN_BANK_EINTG(8, 0x0a0, "gpr3", 0x14),
+ EXYNOS5433_PIN_BANK_EINTG(6, 0x000, "gph1", 0x00),
+ EXYNOS5433_PIN_BANK_EINTG(7, 0x020, "gpr4", 0x04),
+ EXYNOS5433_PIN_BANK_EINTG(5, 0x040, "gpr0", 0x08),
+ EXYNOS5433_PIN_BANK_EINTG(8, 0x060, "gpr1", 0x0c),
+ EXYNOS5433_PIN_BANK_EINTG(2, 0x080, "gpr2", 0x10),
+ EXYNOS5433_PIN_BANK_EINTG(8, 0x0a0, "gpr3", 0x14),
};
/* pin banks of exynos5433 pin-controller - IMEM */
static const struct samsung_pin_bank_data exynos5433_pin_banks6[] __initconst = {
- EXYNOS_PIN_BANK_EINTG(8, 0x000, "gpf0", 0x00),
+ EXYNOS5433_PIN_BANK_EINTG(8, 0x000, "gpf0", 0x00),
};
/* pin banks of exynos5433 pin-controller - NFC */
static const struct samsung_pin_bank_data exynos5433_pin_banks7[] __initconst = {
- EXYNOS_PIN_BANK_EINTG(3, 0x000, "gpj0", 0x00),
+ EXYNOS5433_PIN_BANK_EINTG(3, 0x000, "gpj0", 0x00),
};
/* pin banks of exynos5433 pin-controller - PERIC */
static const struct samsung_pin_bank_data exynos5433_pin_banks8[] __initconst = {
- EXYNOS_PIN_BANK_EINTG(6, 0x000, "gpv7", 0x00),
- EXYNOS_PIN_BANK_EINTG(5, 0x020, "gpb0", 0x04),
- EXYNOS_PIN_BANK_EINTG(8, 0x040, "gpc0", 0x08),
- EXYNOS_PIN_BANK_EINTG(2, 0x060, "gpc1", 0x0c),
- EXYNOS_PIN_BANK_EINTG(6, 0x080, "gpc2", 0x10),
- EXYNOS_PIN_BANK_EINTG(8, 0x0a0, "gpc3", 0x14),
- EXYNOS_PIN_BANK_EINTG(2, 0x0c0, "gpg0", 0x18),
- EXYNOS_PIN_BANK_EINTG(4, 0x0e0, "gpd0", 0x1c),
- EXYNOS_PIN_BANK_EINTG(6, 0x100, "gpd1", 0x20),
- EXYNOS_PIN_BANK_EINTG(8, 0x120, "gpd2", 0x24),
- EXYNOS_PIN_BANK_EINTG(5, 0x140, "gpd4", 0x28),
- EXYNOS_PIN_BANK_EINTG(2, 0x160, "gpd8", 0x2c),
- EXYNOS_PIN_BANK_EINTG(7, 0x180, "gpd6", 0x30),
- EXYNOS_PIN_BANK_EINTG(3, 0x1a0, "gpd7", 0x34),
- EXYNOS_PIN_BANK_EINTG(5, 0x1c0, "gpg1", 0x38),
- EXYNOS_PIN_BANK_EINTG(2, 0x1e0, "gpg2", 0x3c),
- EXYNOS_PIN_BANK_EINTG(8, 0x200, "gpg3", 0x40),
+ EXYNOS5433_PIN_BANK_EINTG(6, 0x000, "gpv7", 0x00),
+ EXYNOS5433_PIN_BANK_EINTG(5, 0x020, "gpb0", 0x04),
+ EXYNOS5433_PIN_BANK_EINTG(8, 0x040, "gpc0", 0x08),
+ EXYNOS5433_PIN_BANK_EINTG(2, 0x060, "gpc1", 0x0c),
+ EXYNOS5433_PIN_BANK_EINTG(6, 0x080, "gpc2", 0x10),
+ EXYNOS5433_PIN_BANK_EINTG(8, 0x0a0, "gpc3", 0x14),
+ EXYNOS5433_PIN_BANK_EINTG(2, 0x0c0, "gpg0", 0x18),
+ EXYNOS5433_PIN_BANK_EINTG(4, 0x0e0, "gpd0", 0x1c),
+ EXYNOS5433_PIN_BANK_EINTG(6, 0x100, "gpd1", 0x20),
+ EXYNOS5433_PIN_BANK_EINTG(8, 0x120, "gpd2", 0x24),
+ EXYNOS5433_PIN_BANK_EINTG(5, 0x140, "gpd4", 0x28),
+ EXYNOS5433_PIN_BANK_EINTG(2, 0x160, "gpd8", 0x2c),
+ EXYNOS5433_PIN_BANK_EINTG(7, 0x180, "gpd6", 0x30),
+ EXYNOS5433_PIN_BANK_EINTG(3, 0x1a0, "gpd7", 0x34),
+ EXYNOS5433_PIN_BANK_EINTG(5, 0x1c0, "gpg1", 0x38),
+ EXYNOS5433_PIN_BANK_EINTG(2, 0x1e0, "gpg2", 0x3c),
+ EXYNOS5433_PIN_BANK_EINTG(8, 0x200, "gpg3", 0x40),
};
/* pin banks of exynos5433 pin-controller - TOUCH */
static const struct samsung_pin_bank_data exynos5433_pin_banks9[] __initconst = {
- EXYNOS_PIN_BANK_EINTG(3, 0x000, "gpj1", 0x00),
+ EXYNOS5433_PIN_BANK_EINTG(3, 0x000, "gpj1", 0x00),
};
/*
diff --git a/drivers/pinctrl/samsung/pinctrl-exynos.h b/drivers/pinctrl/samsung/pinctrl-exynos.h
index a473092fb8d2..cd046eb7d705 100644
--- a/drivers/pinctrl/samsung/pinctrl-exynos.h
+++ b/drivers/pinctrl/samsung/pinctrl-exynos.h
@@ -79,17 +79,6 @@
.name = id \
}
-#define EXYNOS_PIN_BANK_EINTW_EXT(pins, reg, id, offs, pctl_idx) \
- { \
- .type = &bank_type_alive, \
- .pctl_offset = reg, \
- .nr_pins = pins, \
- .eint_type = EINT_TYPE_WKUP, \
- .eint_offset = offs, \
- .name = id, \
- .pctl_res_idx = pctl_idx, \
- } \
-
#define EXYNOS5433_PIN_BANK_EINTG(pins, reg, id, offs) \
{ \
.type = &exynos5433_bank_type_off, \
diff --git a/drivers/pinctrl/sh-pfc/pinctrl.c b/drivers/pinctrl/sh-pfc/pinctrl.c
index 08150a321be6..a70157f0acf4 100644
--- a/drivers/pinctrl/sh-pfc/pinctrl.c
+++ b/drivers/pinctrl/sh-pfc/pinctrl.c
@@ -816,6 +816,13 @@ int sh_pfc_register_pinctrl(struct sh_pfc *pfc)
pmx->pctl_desc.pins = pmx->pins;
pmx->pctl_desc.npins = pfc->info->nr_pins;
- return devm_pinctrl_register_and_init(pfc->dev, &pmx->pctl_desc, pmx,
- &pmx->pctl);
+ ret = devm_pinctrl_register_and_init(pfc->dev, &pmx->pctl_desc, pmx,
+ &pmx->pctl);
+ if (ret) {
+ dev_err(pfc->dev, "could not register: %i\n", ret);
+
+ return ret;
+ }
+
+ return pinctrl_enable(pmx->pctl);
}
diff --git a/drivers/pinctrl/ti/pinctrl-ti-iodelay.c b/drivers/pinctrl/ti/pinctrl-ti-iodelay.c
index 717e3404900c..362c50918c13 100644
--- a/drivers/pinctrl/ti/pinctrl-ti-iodelay.c
+++ b/drivers/pinctrl/ti/pinctrl-ti-iodelay.c
@@ -893,6 +893,8 @@ static int ti_iodelay_probe(struct platform_device *pdev)
platform_set_drvdata(pdev, iod);
+ return pinctrl_enable(iod->pctl);
+
exit_out:
of_node_put(np);
return ret;
diff --git a/drivers/pwm/pwm-lpss-pci.c b/drivers/pwm/pwm-lpss-pci.c
index 053088b9b66e..c1527cb645be 100644
--- a/drivers/pwm/pwm-lpss-pci.c
+++ b/drivers/pwm/pwm-lpss-pci.c
@@ -36,6 +36,14 @@ static const struct pwm_lpss_boardinfo pwm_lpss_bxt_info = {
.clk_rate = 19200000,
.npwm = 4,
.base_unit_bits = 22,
+ .bypass = true,
+};
+
+/* Tangier */
+static const struct pwm_lpss_boardinfo pwm_lpss_tng_info = {
+ .clk_rate = 19200000,
+ .npwm = 4,
+ .base_unit_bits = 22,
};
static int pwm_lpss_probe_pci(struct pci_dev *pdev,
@@ -97,7 +105,7 @@ static const struct pci_device_id pwm_lpss_pci_ids[] = {
{ PCI_VDEVICE(INTEL, 0x0ac8), (unsigned long)&pwm_lpss_bxt_info},
{ PCI_VDEVICE(INTEL, 0x0f08), (unsigned long)&pwm_lpss_byt_info},
{ PCI_VDEVICE(INTEL, 0x0f09), (unsigned long)&pwm_lpss_byt_info},
- { PCI_VDEVICE(INTEL, 0x11a5), (unsigned long)&pwm_lpss_bxt_info},
+ { PCI_VDEVICE(INTEL, 0x11a5), (unsigned long)&pwm_lpss_tng_info},
{ PCI_VDEVICE(INTEL, 0x1ac8), (unsigned long)&pwm_lpss_bxt_info},
{ PCI_VDEVICE(INTEL, 0x2288), (unsigned long)&pwm_lpss_bsw_info},
{ PCI_VDEVICE(INTEL, 0x2289), (unsigned long)&pwm_lpss_bsw_info},
diff --git a/drivers/pwm/pwm-lpss-platform.c b/drivers/pwm/pwm-lpss-platform.c
index b22b6fdadb9a..5d6ed1507d29 100644
--- a/drivers/pwm/pwm-lpss-platform.c
+++ b/drivers/pwm/pwm-lpss-platform.c
@@ -37,6 +37,7 @@ static const struct pwm_lpss_boardinfo pwm_lpss_bxt_info = {
.clk_rate = 19200000,
.npwm = 4,
.base_unit_bits = 22,
+ .bypass = true,
};
static int pwm_lpss_probe_platform(struct platform_device *pdev)
diff --git a/drivers/pwm/pwm-lpss.c b/drivers/pwm/pwm-lpss.c
index 689d2c1cbead..8db0d40ccacd 100644
--- a/drivers/pwm/pwm-lpss.c
+++ b/drivers/pwm/pwm-lpss.c
@@ -57,7 +57,7 @@ static inline void pwm_lpss_write(const struct pwm_device *pwm, u32 value)
writel(value, lpwm->regs + pwm->hwpwm * PWM_SIZE + PWM);
}
-static int pwm_lpss_update(struct pwm_device *pwm)
+static int pwm_lpss_wait_for_update(struct pwm_device *pwm)
{
struct pwm_lpss_chip *lpwm = to_lpwm(pwm->chip);
const void __iomem *addr = lpwm->regs + pwm->hwpwm * PWM_SIZE + PWM;
@@ -65,8 +65,6 @@ static int pwm_lpss_update(struct pwm_device *pwm)
u32 val;
int err;
- pwm_lpss_write(pwm, pwm_lpss_read(pwm) | PWM_SW_UPDATE);
-
/*
* PWM Configuration register has SW_UPDATE bit that is set when a new
* configuration is written to the register. The bit is automatically
@@ -122,6 +120,12 @@ static void pwm_lpss_prepare(struct pwm_lpss_chip *lpwm, struct pwm_device *pwm,
pwm_lpss_write(pwm, ctrl);
}
+static inline void pwm_lpss_cond_enable(struct pwm_device *pwm, bool cond)
+{
+ if (cond)
+ pwm_lpss_write(pwm, pwm_lpss_read(pwm) | PWM_ENABLE);
+}
+
static int pwm_lpss_apply(struct pwm_chip *chip, struct pwm_device *pwm,
struct pwm_state *state)
{
@@ -137,18 +141,21 @@ static int pwm_lpss_apply(struct pwm_chip *chip, struct pwm_device *pwm,
return ret;
}
pwm_lpss_prepare(lpwm, pwm, state->duty_cycle, state->period);
- ret = pwm_lpss_update(pwm);
+ pwm_lpss_write(pwm, pwm_lpss_read(pwm) | PWM_SW_UPDATE);
+ pwm_lpss_cond_enable(pwm, lpwm->info->bypass == false);
+ ret = pwm_lpss_wait_for_update(pwm);
if (ret) {
pm_runtime_put(chip->dev);
return ret;
}
- pwm_lpss_write(pwm, pwm_lpss_read(pwm) | PWM_ENABLE);
+ pwm_lpss_cond_enable(pwm, lpwm->info->bypass == true);
} else {
ret = pwm_lpss_is_updating(pwm);
if (ret)
return ret;
pwm_lpss_prepare(lpwm, pwm, state->duty_cycle, state->period);
- return pwm_lpss_update(pwm);
+ pwm_lpss_write(pwm, pwm_lpss_read(pwm) | PWM_SW_UPDATE);
+ return pwm_lpss_wait_for_update(pwm);
}
} else if (pwm_is_enabled(pwm)) {
pwm_lpss_write(pwm, pwm_lpss_read(pwm) & ~PWM_ENABLE);
diff --git a/drivers/pwm/pwm-lpss.h b/drivers/pwm/pwm-lpss.h
index c94cd7c2695d..98306bb02cfe 100644
--- a/drivers/pwm/pwm-lpss.h
+++ b/drivers/pwm/pwm-lpss.h
@@ -22,6 +22,7 @@ struct pwm_lpss_boardinfo {
unsigned long clk_rate;
unsigned int npwm;
unsigned long base_unit_bits;
+ bool bypass;
};
struct pwm_lpss_chip *pwm_lpss_probe(struct device *dev, struct resource *r,
diff --git a/drivers/pwm/pwm-rockchip.c b/drivers/pwm/pwm-rockchip.c
index ef89df1f7336..744d56197286 100644
--- a/drivers/pwm/pwm-rockchip.c
+++ b/drivers/pwm/pwm-rockchip.c
@@ -191,6 +191,28 @@ static int rockchip_pwm_config(struct pwm_chip *chip, struct pwm_device *pwm,
return 0;
}
+static int rockchip_pwm_enable(struct pwm_chip *chip,
+ struct pwm_device *pwm,
+ bool enable,
+ enum pwm_polarity polarity)
+{
+ struct rockchip_pwm_chip *pc = to_rockchip_pwm_chip(chip);
+ int ret;
+
+ if (enable) {
+ ret = clk_enable(pc->clk);
+ if (ret)
+ return ret;
+ }
+
+ pc->data->set_enable(chip, pwm, enable, polarity);
+
+ if (!enable)
+ clk_disable(pc->clk);
+
+ return 0;
+}
+
static int rockchip_pwm_apply(struct pwm_chip *chip, struct pwm_device *pwm,
struct pwm_state *state)
{
@@ -207,22 +229,26 @@ static int rockchip_pwm_apply(struct pwm_chip *chip, struct pwm_device *pwm,
return ret;
if (state->polarity != curstate.polarity && enabled) {
- pc->data->set_enable(chip, pwm, false, state->polarity);
+ ret = rockchip_pwm_enable(chip, pwm, false, state->polarity);
+ if (ret)
+ goto out;
enabled = false;
}
ret = rockchip_pwm_config(chip, pwm, state->duty_cycle, state->period);
if (ret) {
if (enabled != curstate.enabled)
- pc->data->set_enable(chip, pwm, !enabled,
- state->polarity);
-
+ rockchip_pwm_enable(chip, pwm, !enabled,
+ state->polarity);
goto out;
}
- if (state->enabled != enabled)
- pc->data->set_enable(chip, pwm, state->enabled,
- state->polarity);
+ if (state->enabled != enabled) {
+ ret = rockchip_pwm_enable(chip, pwm, state->enabled,
+ state->polarity);
+ if (ret)
+ goto out;
+ }
/*
* Update the state with the real hardware, which can differ a bit
diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c
index 19125d72f322..e5a2d590a104 100644
--- a/drivers/scsi/scsi_lib.c
+++ b/drivers/scsi/scsi_lib.c
@@ -496,7 +496,7 @@ static void scsi_run_queue(struct request_queue *q)
scsi_starved_list_run(sdev->host);
if (q->mq_ops)
- blk_mq_start_stopped_hw_queues(q, false);
+ blk_mq_run_hw_queues(q, false);
else
blk_run_queue(q);
}
@@ -667,7 +667,7 @@ static bool scsi_end_request(struct request *req, int error,
!list_empty(&sdev->host->starved_list))
kblockd_schedule_work(&sdev->requeue_work);
else
- blk_mq_start_stopped_hw_queues(q, true);
+ blk_mq_run_hw_queues(q, true);
} else {
unsigned long flags;
@@ -1974,7 +1974,7 @@ out:
case BLK_MQ_RQ_QUEUE_BUSY:
if (atomic_read(&sdev->device_busy) == 0 &&
!scsi_device_blocked(sdev))
- blk_mq_delay_queue(hctx, SCSI_QUEUE_DELAY);
+ blk_mq_delay_run_hw_queue(hctx, SCSI_QUEUE_DELAY);
break;
case BLK_MQ_RQ_QUEUE_ERROR:
/*
diff --git a/drivers/staging/android/ashmem.c b/drivers/staging/android/ashmem.c
index 7cbad0d45b9c..6ba270e0494d 100644
--- a/drivers/staging/android/ashmem.c
+++ b/drivers/staging/android/ashmem.c
@@ -409,6 +409,7 @@ static int ashmem_mmap(struct file *file, struct vm_area_struct *vma)
ret = PTR_ERR(vmfile);
goto out;
}
+ vmfile->f_mode |= FMODE_LSEEK;
asma->file = vmfile;
}
get_file(asma->file);
diff --git a/drivers/target/iscsi/iscsi_target.c b/drivers/target/iscsi/iscsi_target.c
index a91802432f2f..e3f9ed3690b7 100644
--- a/drivers/target/iscsi/iscsi_target.c
+++ b/drivers/target/iscsi/iscsi_target.c
@@ -485,8 +485,7 @@ static void iscsit_get_rx_pdu(struct iscsi_conn *);
int iscsit_queue_rsp(struct iscsi_conn *conn, struct iscsi_cmd *cmd)
{
- iscsit_add_cmd_to_response_queue(cmd, cmd->conn, cmd->i_state);
- return 0;
+ return iscsit_add_cmd_to_response_queue(cmd, cmd->conn, cmd->i_state);
}
EXPORT_SYMBOL(iscsit_queue_rsp);
diff --git a/drivers/target/iscsi/iscsi_target_configfs.c b/drivers/target/iscsi/iscsi_target_configfs.c
index bf40f03755dd..344e8448869c 100644
--- a/drivers/target/iscsi/iscsi_target_configfs.c
+++ b/drivers/target/iscsi/iscsi_target_configfs.c
@@ -1398,11 +1398,10 @@ static u32 lio_sess_get_initiator_sid(
static int lio_queue_data_in(struct se_cmd *se_cmd)
{
struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd);
+ struct iscsi_conn *conn = cmd->conn;
cmd->i_state = ISTATE_SEND_DATAIN;
- cmd->conn->conn_transport->iscsit_queue_data_in(cmd->conn, cmd);
-
- return 0;
+ return conn->conn_transport->iscsit_queue_data_in(conn, cmd);
}
static int lio_write_pending(struct se_cmd *se_cmd)
@@ -1431,16 +1430,14 @@ static int lio_write_pending_status(struct se_cmd *se_cmd)
static int lio_queue_status(struct se_cmd *se_cmd)
{
struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd);
+ struct iscsi_conn *conn = cmd->conn;
cmd->i_state = ISTATE_SEND_STATUS;
if (cmd->se_cmd.scsi_status || cmd->sense_reason) {
- iscsit_add_cmd_to_response_queue(cmd, cmd->conn, cmd->i_state);
- return 0;
+ return iscsit_add_cmd_to_response_queue(cmd, conn, cmd->i_state);
}
- cmd->conn->conn_transport->iscsit_queue_status(cmd->conn, cmd);
-
- return 0;
+ return conn->conn_transport->iscsit_queue_status(conn, cmd);
}
static void lio_queue_tm_rsp(struct se_cmd *se_cmd)
diff --git a/drivers/target/iscsi/iscsi_target_parameters.c b/drivers/target/iscsi/iscsi_target_parameters.c
index e65bf78ceef3..fce627628200 100644
--- a/drivers/target/iscsi/iscsi_target_parameters.c
+++ b/drivers/target/iscsi/iscsi_target_parameters.c
@@ -782,22 +782,6 @@ static void iscsi_check_proposer_for_optional_reply(struct iscsi_param *param)
if (!strcmp(param->name, MAXRECVDATASEGMENTLENGTH))
SET_PSTATE_REPLY_OPTIONAL(param);
/*
- * The GlobalSAN iSCSI Initiator for MacOSX does
- * not respond to MaxBurstLength, FirstBurstLength,
- * DefaultTime2Wait or DefaultTime2Retain parameter keys.
- * So, we set them to 'reply optional' here, and assume the
- * the defaults from iscsi_parameters.h if the initiator
- * is not RFC compliant and the keys are not negotiated.
- */
- if (!strcmp(param->name, MAXBURSTLENGTH))
- SET_PSTATE_REPLY_OPTIONAL(param);
- if (!strcmp(param->name, FIRSTBURSTLENGTH))
- SET_PSTATE_REPLY_OPTIONAL(param);
- if (!strcmp(param->name, DEFAULTTIME2WAIT))
- SET_PSTATE_REPLY_OPTIONAL(param);
- if (!strcmp(param->name, DEFAULTTIME2RETAIN))
- SET_PSTATE_REPLY_OPTIONAL(param);
- /*
* Required for gPXE iSCSI boot client
*/
if (!strcmp(param->name, MAXCONNECTIONS))
diff --git a/drivers/target/iscsi/iscsi_target_util.c b/drivers/target/iscsi/iscsi_target_util.c
index 5041a9c8bdcb..7d3e2fcc26a0 100644
--- a/drivers/target/iscsi/iscsi_target_util.c
+++ b/drivers/target/iscsi/iscsi_target_util.c
@@ -567,7 +567,7 @@ static void iscsit_remove_cmd_from_immediate_queue(
}
}
-void iscsit_add_cmd_to_response_queue(
+int iscsit_add_cmd_to_response_queue(
struct iscsi_cmd *cmd,
struct iscsi_conn *conn,
u8 state)
@@ -578,7 +578,7 @@ void iscsit_add_cmd_to_response_queue(
if (!qr) {
pr_err("Unable to allocate memory for"
" struct iscsi_queue_req\n");
- return;
+ return -ENOMEM;
}
INIT_LIST_HEAD(&qr->qr_list);
qr->cmd = cmd;
@@ -590,6 +590,7 @@ void iscsit_add_cmd_to_response_queue(
spin_unlock_bh(&conn->response_queue_lock);
wake_up(&conn->queues_wq);
+ return 0;
}
struct iscsi_queue_req *iscsit_get_cmd_from_response_queue(struct iscsi_conn *conn)
@@ -737,21 +738,23 @@ void iscsit_free_cmd(struct iscsi_cmd *cmd, bool shutdown)
{
struct se_cmd *se_cmd = NULL;
int rc;
+ bool op_scsi = false;
/*
* Determine if a struct se_cmd is associated with
* this struct iscsi_cmd.
*/
switch (cmd->iscsi_opcode) {
case ISCSI_OP_SCSI_CMD:
- se_cmd = &cmd->se_cmd;
- __iscsit_free_cmd(cmd, true, shutdown);
+ op_scsi = true;
/*
* Fallthrough
*/
case ISCSI_OP_SCSI_TMFUNC:
- rc = transport_generic_free_cmd(&cmd->se_cmd, shutdown);
- if (!rc && shutdown && se_cmd && se_cmd->se_sess) {
- __iscsit_free_cmd(cmd, true, shutdown);
+ se_cmd = &cmd->se_cmd;
+ __iscsit_free_cmd(cmd, op_scsi, shutdown);
+ rc = transport_generic_free_cmd(se_cmd, shutdown);
+ if (!rc && shutdown && se_cmd->se_sess) {
+ __iscsit_free_cmd(cmd, op_scsi, shutdown);
target_put_sess_cmd(se_cmd);
}
break;
diff --git a/drivers/target/iscsi/iscsi_target_util.h b/drivers/target/iscsi/iscsi_target_util.h
index 8ff08856516a..9e4197af8708 100644
--- a/drivers/target/iscsi/iscsi_target_util.h
+++ b/drivers/target/iscsi/iscsi_target_util.h
@@ -31,7 +31,7 @@ extern int iscsit_find_cmd_for_recovery(struct iscsi_session *, struct iscsi_cmd
struct iscsi_conn_recovery **, itt_t);
extern void iscsit_add_cmd_to_immediate_queue(struct iscsi_cmd *, struct iscsi_conn *, u8);
extern struct iscsi_queue_req *iscsit_get_cmd_from_immediate_queue(struct iscsi_conn *);
-extern void iscsit_add_cmd_to_response_queue(struct iscsi_cmd *, struct iscsi_conn *, u8);
+extern int iscsit_add_cmd_to_response_queue(struct iscsi_cmd *, struct iscsi_conn *, u8);
extern struct iscsi_queue_req *iscsit_get_cmd_from_response_queue(struct iscsi_conn *);
extern void iscsit_remove_cmd_from_tx_queues(struct iscsi_cmd *, struct iscsi_conn *);
extern bool iscsit_conn_all_queues_empty(struct iscsi_conn *);
diff --git a/drivers/target/target_core_alua.c b/drivers/target/target_core_alua.c
index fd7c16a7ca6e..fc4a9c303d55 100644
--- a/drivers/target/target_core_alua.c
+++ b/drivers/target/target_core_alua.c
@@ -197,8 +197,7 @@ target_emulate_report_target_port_groups(struct se_cmd *cmd)
/*
* Set the ASYMMETRIC ACCESS State
*/
- buf[off++] |= (atomic_read(
- &tg_pt_gp->tg_pt_gp_alua_access_state) & 0xff);
+ buf[off++] |= tg_pt_gp->tg_pt_gp_alua_access_state & 0xff;
/*
* Set supported ASYMMETRIC ACCESS State bits
*/
@@ -710,7 +709,7 @@ target_alua_state_check(struct se_cmd *cmd)
spin_lock(&lun->lun_tg_pt_gp_lock);
tg_pt_gp = lun->lun_tg_pt_gp;
- out_alua_state = atomic_read(&tg_pt_gp->tg_pt_gp_alua_access_state);
+ out_alua_state = tg_pt_gp->tg_pt_gp_alua_access_state;
nonop_delay_msecs = tg_pt_gp->tg_pt_gp_nonop_delay_msecs;
// XXX: keeps using tg_pt_gp witout reference after unlock
@@ -911,7 +910,7 @@ static int core_alua_write_tpg_metadata(
}
/*
- * Called with tg_pt_gp->tg_pt_gp_md_mutex held
+ * Called with tg_pt_gp->tg_pt_gp_transition_mutex held
*/
static int core_alua_update_tpg_primary_metadata(
struct t10_alua_tg_pt_gp *tg_pt_gp)
@@ -934,7 +933,7 @@ static int core_alua_update_tpg_primary_metadata(
"alua_access_state=0x%02x\n"
"alua_access_status=0x%02x\n",
tg_pt_gp->tg_pt_gp_id,
- tg_pt_gp->tg_pt_gp_alua_pending_state,
+ tg_pt_gp->tg_pt_gp_alua_access_state,
tg_pt_gp->tg_pt_gp_alua_access_status);
snprintf(path, ALUA_METADATA_PATH_LEN,
@@ -1013,93 +1012,41 @@ static void core_alua_queue_state_change_ua(struct t10_alua_tg_pt_gp *tg_pt_gp)
spin_unlock(&tg_pt_gp->tg_pt_gp_lock);
}
-static void core_alua_do_transition_tg_pt_work(struct work_struct *work)
-{
- struct t10_alua_tg_pt_gp *tg_pt_gp = container_of(work,
- struct t10_alua_tg_pt_gp, tg_pt_gp_transition_work);
- struct se_device *dev = tg_pt_gp->tg_pt_gp_dev;
- bool explicit = (tg_pt_gp->tg_pt_gp_alua_access_status ==
- ALUA_STATUS_ALTERED_BY_EXPLICIT_STPG);
-
- /*
- * Update the ALUA metadata buf that has been allocated in
- * core_alua_do_port_transition(), this metadata will be written
- * to struct file.
- *
- * Note that there is the case where we do not want to update the
- * metadata when the saved metadata is being parsed in userspace
- * when setting the existing port access state and access status.
- *
- * Also note that the failure to write out the ALUA metadata to
- * struct file does NOT affect the actual ALUA transition.
- */
- if (tg_pt_gp->tg_pt_gp_write_metadata) {
- mutex_lock(&tg_pt_gp->tg_pt_gp_md_mutex);
- core_alua_update_tpg_primary_metadata(tg_pt_gp);
- mutex_unlock(&tg_pt_gp->tg_pt_gp_md_mutex);
- }
- /*
- * Set the current primary ALUA access state to the requested new state
- */
- atomic_set(&tg_pt_gp->tg_pt_gp_alua_access_state,
- tg_pt_gp->tg_pt_gp_alua_pending_state);
-
- pr_debug("Successful %s ALUA transition TG PT Group: %s ID: %hu"
- " from primary access state %s to %s\n", (explicit) ? "explicit" :
- "implicit", config_item_name(&tg_pt_gp->tg_pt_gp_group.cg_item),
- tg_pt_gp->tg_pt_gp_id,
- core_alua_dump_state(tg_pt_gp->tg_pt_gp_alua_previous_state),
- core_alua_dump_state(tg_pt_gp->tg_pt_gp_alua_pending_state));
-
- core_alua_queue_state_change_ua(tg_pt_gp);
-
- spin_lock(&dev->t10_alua.tg_pt_gps_lock);
- atomic_dec(&tg_pt_gp->tg_pt_gp_ref_cnt);
- spin_unlock(&dev->t10_alua.tg_pt_gps_lock);
-
- if (tg_pt_gp->tg_pt_gp_transition_complete)
- complete(tg_pt_gp->tg_pt_gp_transition_complete);
-}
-
static int core_alua_do_transition_tg_pt(
struct t10_alua_tg_pt_gp *tg_pt_gp,
int new_state,
int explicit)
{
- struct se_device *dev = tg_pt_gp->tg_pt_gp_dev;
- DECLARE_COMPLETION_ONSTACK(wait);
+ int prev_state;
+ mutex_lock(&tg_pt_gp->tg_pt_gp_transition_mutex);
/* Nothing to be done here */
- if (atomic_read(&tg_pt_gp->tg_pt_gp_alua_access_state) == new_state)
+ if (tg_pt_gp->tg_pt_gp_alua_access_state == new_state) {
+ mutex_unlock(&tg_pt_gp->tg_pt_gp_transition_mutex);
return 0;
+ }
- if (explicit && new_state == ALUA_ACCESS_STATE_TRANSITION)
+ if (explicit && new_state == ALUA_ACCESS_STATE_TRANSITION) {
+ mutex_unlock(&tg_pt_gp->tg_pt_gp_transition_mutex);
return -EAGAIN;
-
- /*
- * Flush any pending transitions
- */
- if (!explicit)
- flush_work(&tg_pt_gp->tg_pt_gp_transition_work);
+ }
/*
* Save the old primary ALUA access state, and set the current state
* to ALUA_ACCESS_STATE_TRANSITION.
*/
- atomic_set(&tg_pt_gp->tg_pt_gp_alua_access_state,
- ALUA_ACCESS_STATE_TRANSITION);
+ prev_state = tg_pt_gp->tg_pt_gp_alua_access_state;
+ tg_pt_gp->tg_pt_gp_alua_access_state = ALUA_ACCESS_STATE_TRANSITION;
tg_pt_gp->tg_pt_gp_alua_access_status = (explicit) ?
ALUA_STATUS_ALTERED_BY_EXPLICIT_STPG :
ALUA_STATUS_ALTERED_BY_IMPLICIT_ALUA;
core_alua_queue_state_change_ua(tg_pt_gp);
- if (new_state == ALUA_ACCESS_STATE_TRANSITION)
+ if (new_state == ALUA_ACCESS_STATE_TRANSITION) {
+ mutex_unlock(&tg_pt_gp->tg_pt_gp_transition_mutex);
return 0;
-
- tg_pt_gp->tg_pt_gp_alua_previous_state =
- atomic_read(&tg_pt_gp->tg_pt_gp_alua_access_state);
- tg_pt_gp->tg_pt_gp_alua_pending_state = new_state;
+ }
/*
* Check for the optional ALUA primary state transition delay
@@ -1108,19 +1055,36 @@ static int core_alua_do_transition_tg_pt(
msleep_interruptible(tg_pt_gp->tg_pt_gp_trans_delay_msecs);
/*
- * Take a reference for workqueue item
+ * Set the current primary ALUA access state to the requested new state
*/
- spin_lock(&dev->t10_alua.tg_pt_gps_lock);
- atomic_inc(&tg_pt_gp->tg_pt_gp_ref_cnt);
- spin_unlock(&dev->t10_alua.tg_pt_gps_lock);
+ tg_pt_gp->tg_pt_gp_alua_access_state = new_state;
- schedule_work(&tg_pt_gp->tg_pt_gp_transition_work);
- if (explicit) {
- tg_pt_gp->tg_pt_gp_transition_complete = &wait;
- wait_for_completion(&wait);
- tg_pt_gp->tg_pt_gp_transition_complete = NULL;
+ /*
+ * Update the ALUA metadata buf that has been allocated in
+ * core_alua_do_port_transition(), this metadata will be written
+ * to struct file.
+ *
+ * Note that there is the case where we do not want to update the
+ * metadata when the saved metadata is being parsed in userspace
+ * when setting the existing port access state and access status.
+ *
+ * Also note that the failure to write out the ALUA metadata to
+ * struct file does NOT affect the actual ALUA transition.
+ */
+ if (tg_pt_gp->tg_pt_gp_write_metadata) {
+ core_alua_update_tpg_primary_metadata(tg_pt_gp);
}
+ pr_debug("Successful %s ALUA transition TG PT Group: %s ID: %hu"
+ " from primary access state %s to %s\n", (explicit) ? "explicit" :
+ "implicit", config_item_name(&tg_pt_gp->tg_pt_gp_group.cg_item),
+ tg_pt_gp->tg_pt_gp_id,
+ core_alua_dump_state(prev_state),
+ core_alua_dump_state(new_state));
+
+ core_alua_queue_state_change_ua(tg_pt_gp);
+
+ mutex_unlock(&tg_pt_gp->tg_pt_gp_transition_mutex);
return 0;
}
@@ -1685,14 +1649,12 @@ struct t10_alua_tg_pt_gp *core_alua_allocate_tg_pt_gp(struct se_device *dev,
}
INIT_LIST_HEAD(&tg_pt_gp->tg_pt_gp_list);
INIT_LIST_HEAD(&tg_pt_gp->tg_pt_gp_lun_list);
- mutex_init(&tg_pt_gp->tg_pt_gp_md_mutex);
+ mutex_init(&tg_pt_gp->tg_pt_gp_transition_mutex);
spin_lock_init(&tg_pt_gp->tg_pt_gp_lock);
atomic_set(&tg_pt_gp->tg_pt_gp_ref_cnt, 0);
- INIT_WORK(&tg_pt_gp->tg_pt_gp_transition_work,
- core_alua_do_transition_tg_pt_work);
tg_pt_gp->tg_pt_gp_dev = dev;
- atomic_set(&tg_pt_gp->tg_pt_gp_alua_access_state,
- ALUA_ACCESS_STATE_ACTIVE_OPTIMIZED);
+ tg_pt_gp->tg_pt_gp_alua_access_state =
+ ALUA_ACCESS_STATE_ACTIVE_OPTIMIZED;
/*
* Enable both explicit and implicit ALUA support by default
*/
@@ -1797,8 +1759,6 @@ void core_alua_free_tg_pt_gp(
dev->t10_alua.alua_tg_pt_gps_counter--;
spin_unlock(&dev->t10_alua.tg_pt_gps_lock);
- flush_work(&tg_pt_gp->tg_pt_gp_transition_work);
-
/*
* Allow a struct t10_alua_tg_pt_gp_member * referenced by
* core_alua_get_tg_pt_gp_by_name() in
@@ -1938,8 +1898,8 @@ ssize_t core_alua_show_tg_pt_gp_info(struct se_lun *lun, char *page)
"Primary Access Status: %s\nTG Port Secondary Access"
" State: %s\nTG Port Secondary Access Status: %s\n",
config_item_name(tg_pt_ci), tg_pt_gp->tg_pt_gp_id,
- core_alua_dump_state(atomic_read(
- &tg_pt_gp->tg_pt_gp_alua_access_state)),
+ core_alua_dump_state(
+ tg_pt_gp->tg_pt_gp_alua_access_state),
core_alua_dump_status(
tg_pt_gp->tg_pt_gp_alua_access_status),
atomic_read(&lun->lun_tg_pt_secondary_offline) ?
diff --git a/drivers/target/target_core_configfs.c b/drivers/target/target_core_configfs.c
index 38b5025e4c7a..70657fd56440 100644
--- a/drivers/target/target_core_configfs.c
+++ b/drivers/target/target_core_configfs.c
@@ -2392,7 +2392,7 @@ static ssize_t target_tg_pt_gp_alua_access_state_show(struct config_item *item,
char *page)
{
return sprintf(page, "%d\n",
- atomic_read(&to_tg_pt_gp(item)->tg_pt_gp_alua_access_state));
+ to_tg_pt_gp(item)->tg_pt_gp_alua_access_state);
}
static ssize_t target_tg_pt_gp_alua_access_state_store(struct config_item *item,
diff --git a/drivers/target/target_core_fabric_configfs.c b/drivers/target/target_core_fabric_configfs.c
index d8a16ca6baa5..d1e6cab8e3d3 100644
--- a/drivers/target/target_core_fabric_configfs.c
+++ b/drivers/target/target_core_fabric_configfs.c
@@ -92,6 +92,11 @@ static int target_fabric_mappedlun_link(
pr_err("Source se_lun->lun_se_dev does not exist\n");
return -EINVAL;
}
+ if (lun->lun_shutdown) {
+ pr_err("Unable to create mappedlun symlink because"
+ " lun->lun_shutdown=true\n");
+ return -EINVAL;
+ }
se_tpg = lun->lun_tpg;
nacl_ci = &lun_acl_ci->ci_parent->ci_group->cg_item;
diff --git a/drivers/target/target_core_tpg.c b/drivers/target/target_core_tpg.c
index 6fb191914f45..dfaef4d3b2d2 100644
--- a/drivers/target/target_core_tpg.c
+++ b/drivers/target/target_core_tpg.c
@@ -642,6 +642,8 @@ void core_tpg_remove_lun(
*/
struct se_device *dev = rcu_dereference_raw(lun->lun_se_dev);
+ lun->lun_shutdown = true;
+
core_clear_lun_from_tpg(lun, tpg);
/*
* Wait for any active I/O references to percpu se_lun->lun_ref to
@@ -663,6 +665,8 @@ void core_tpg_remove_lun(
}
if (!(dev->se_hba->hba_flags & HBA_FLAGS_INTERNAL_USE))
hlist_del_rcu(&lun->link);
+
+ lun->lun_shutdown = false;
mutex_unlock(&tpg->tpg_lun_mutex);
percpu_ref_exit(&lun->lun_ref);
diff --git a/drivers/target/target_core_transport.c b/drivers/target/target_core_transport.c
index b1a3cdb29468..a0cd56ee5fe9 100644
--- a/drivers/target/target_core_transport.c
+++ b/drivers/target/target_core_transport.c
@@ -64,8 +64,9 @@ struct kmem_cache *t10_alua_lba_map_cache;
struct kmem_cache *t10_alua_lba_map_mem_cache;
static void transport_complete_task_attr(struct se_cmd *cmd);
+static int translate_sense_reason(struct se_cmd *cmd, sense_reason_t reason);
static void transport_handle_queue_full(struct se_cmd *cmd,
- struct se_device *dev);
+ struct se_device *dev, int err, bool write_pending);
static int transport_put_cmd(struct se_cmd *cmd);
static void target_complete_ok_work(struct work_struct *work);
@@ -804,7 +805,8 @@ void target_qf_do_work(struct work_struct *work)
if (cmd->t_state == TRANSPORT_COMPLETE_QF_WP)
transport_write_pending_qf(cmd);
- else if (cmd->t_state == TRANSPORT_COMPLETE_QF_OK)
+ else if (cmd->t_state == TRANSPORT_COMPLETE_QF_OK ||
+ cmd->t_state == TRANSPORT_COMPLETE_QF_ERR)
transport_complete_qf(cmd);
}
}
@@ -1719,7 +1721,7 @@ void transport_generic_request_failure(struct se_cmd *cmd,
}
trace_target_cmd_complete(cmd);
ret = cmd->se_tfo->queue_status(cmd);
- if (ret == -EAGAIN || ret == -ENOMEM)
+ if (ret)
goto queue_full;
goto check_stop;
default:
@@ -1730,7 +1732,7 @@ void transport_generic_request_failure(struct se_cmd *cmd,
}
ret = transport_send_check_condition_and_sense(cmd, sense_reason, 0);
- if (ret == -EAGAIN || ret == -ENOMEM)
+ if (ret)
goto queue_full;
check_stop:
@@ -1739,8 +1741,7 @@ check_stop:
return;
queue_full:
- cmd->t_state = TRANSPORT_COMPLETE_QF_OK;
- transport_handle_queue_full(cmd, cmd->se_dev);
+ transport_handle_queue_full(cmd, cmd->se_dev, ret, false);
}
EXPORT_SYMBOL(transport_generic_request_failure);
@@ -1977,13 +1978,29 @@ static void transport_complete_qf(struct se_cmd *cmd)
int ret = 0;
transport_complete_task_attr(cmd);
+ /*
+ * If a fabric driver ->write_pending() or ->queue_data_in() callback
+ * has returned neither -ENOMEM or -EAGAIN, assume it's fatal and
+ * the same callbacks should not be retried. Return CHECK_CONDITION
+ * if a scsi_status is not already set.
+ *
+ * If a fabric driver ->queue_status() has returned non zero, always
+ * keep retrying no matter what..
+ */
+ if (cmd->t_state == TRANSPORT_COMPLETE_QF_ERR) {
+ if (cmd->scsi_status)
+ goto queue_status;
- if (cmd->se_cmd_flags & SCF_TRANSPORT_TASK_SENSE) {
- trace_target_cmd_complete(cmd);
- ret = cmd->se_tfo->queue_status(cmd);
- goto out;
+ cmd->se_cmd_flags |= SCF_EMULATED_TASK_SENSE;
+ cmd->scsi_status = SAM_STAT_CHECK_CONDITION;
+ cmd->scsi_sense_length = TRANSPORT_SENSE_BUFFER;
+ translate_sense_reason(cmd, TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE);
+ goto queue_status;
}
+ if (cmd->se_cmd_flags & SCF_TRANSPORT_TASK_SENSE)
+ goto queue_status;
+
switch (cmd->data_direction) {
case DMA_FROM_DEVICE:
if (cmd->scsi_status)
@@ -2007,19 +2024,33 @@ queue_status:
break;
}
-out:
if (ret < 0) {
- transport_handle_queue_full(cmd, cmd->se_dev);
+ transport_handle_queue_full(cmd, cmd->se_dev, ret, false);
return;
}
transport_lun_remove_cmd(cmd);
transport_cmd_check_stop_to_fabric(cmd);
}
-static void transport_handle_queue_full(
- struct se_cmd *cmd,
- struct se_device *dev)
+static void transport_handle_queue_full(struct se_cmd *cmd, struct se_device *dev,
+ int err, bool write_pending)
{
+ /*
+ * -EAGAIN or -ENOMEM signals retry of ->write_pending() and/or
+ * ->queue_data_in() callbacks from new process context.
+ *
+ * Otherwise for other errors, transport_complete_qf() will send
+ * CHECK_CONDITION via ->queue_status() instead of attempting to
+ * retry associated fabric driver data-transfer callbacks.
+ */
+ if (err == -EAGAIN || err == -ENOMEM) {
+ cmd->t_state = (write_pending) ? TRANSPORT_COMPLETE_QF_WP :
+ TRANSPORT_COMPLETE_QF_OK;
+ } else {
+ pr_warn_ratelimited("Got unknown fabric queue status: %d\n", err);
+ cmd->t_state = TRANSPORT_COMPLETE_QF_ERR;
+ }
+
spin_lock_irq(&dev->qf_cmd_lock);
list_add_tail(&cmd->se_qf_node, &cmd->se_dev->qf_cmd_list);
atomic_inc_mb(&dev->dev_qf_count);
@@ -2083,7 +2114,7 @@ static void target_complete_ok_work(struct work_struct *work)
WARN_ON(!cmd->scsi_status);
ret = transport_send_check_condition_and_sense(
cmd, 0, 1);
- if (ret == -EAGAIN || ret == -ENOMEM)
+ if (ret)
goto queue_full;
transport_lun_remove_cmd(cmd);
@@ -2109,7 +2140,7 @@ static void target_complete_ok_work(struct work_struct *work)
} else if (rc) {
ret = transport_send_check_condition_and_sense(cmd,
rc, 0);
- if (ret == -EAGAIN || ret == -ENOMEM)
+ if (ret)
goto queue_full;
transport_lun_remove_cmd(cmd);
@@ -2134,7 +2165,7 @@ queue_rsp:
if (target_read_prot_action(cmd)) {
ret = transport_send_check_condition_and_sense(cmd,
cmd->pi_err, 0);
- if (ret == -EAGAIN || ret == -ENOMEM)
+ if (ret)
goto queue_full;
transport_lun_remove_cmd(cmd);
@@ -2144,7 +2175,7 @@ queue_rsp:
trace_target_cmd_complete(cmd);
ret = cmd->se_tfo->queue_data_in(cmd);
- if (ret == -EAGAIN || ret == -ENOMEM)
+ if (ret)
goto queue_full;
break;
case DMA_TO_DEVICE:
@@ -2157,7 +2188,7 @@ queue_rsp:
atomic_long_add(cmd->data_length,
&cmd->se_lun->lun_stats.tx_data_octets);
ret = cmd->se_tfo->queue_data_in(cmd);
- if (ret == -EAGAIN || ret == -ENOMEM)
+ if (ret)
goto queue_full;
break;
}
@@ -2166,7 +2197,7 @@ queue_rsp:
queue_status:
trace_target_cmd_complete(cmd);
ret = cmd->se_tfo->queue_status(cmd);
- if (ret == -EAGAIN || ret == -ENOMEM)
+ if (ret)
goto queue_full;
break;
default:
@@ -2180,8 +2211,8 @@ queue_status:
queue_full:
pr_debug("Handling complete_ok QUEUE_FULL: se_cmd: %p,"
" data_direction: %d\n", cmd, cmd->data_direction);
- cmd->t_state = TRANSPORT_COMPLETE_QF_OK;
- transport_handle_queue_full(cmd, cmd->se_dev);
+
+ transport_handle_queue_full(cmd, cmd->se_dev, ret, false);
}
void target_free_sgl(struct scatterlist *sgl, int nents)
@@ -2449,18 +2480,14 @@ transport_generic_new_cmd(struct se_cmd *cmd)
spin_unlock_irqrestore(&cmd->t_state_lock, flags);
ret = cmd->se_tfo->write_pending(cmd);
- if (ret == -EAGAIN || ret == -ENOMEM)
+ if (ret)
goto queue_full;
- /* fabric drivers should only return -EAGAIN or -ENOMEM as error */
- WARN_ON(ret);
-
- return (!ret) ? 0 : TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
+ return 0;
queue_full:
pr_debug("Handling write_pending QUEUE__FULL: se_cmd: %p\n", cmd);
- cmd->t_state = TRANSPORT_COMPLETE_QF_WP;
- transport_handle_queue_full(cmd, cmd->se_dev);
+ transport_handle_queue_full(cmd, cmd->se_dev, ret, true);
return 0;
}
EXPORT_SYMBOL(transport_generic_new_cmd);
@@ -2470,10 +2497,10 @@ static void transport_write_pending_qf(struct se_cmd *cmd)
int ret;
ret = cmd->se_tfo->write_pending(cmd);
- if (ret == -EAGAIN || ret == -ENOMEM) {
+ if (ret) {
pr_debug("Handling write_pending QUEUE__FULL: se_cmd: %p\n",
cmd);
- transport_handle_queue_full(cmd, cmd->se_dev);
+ transport_handle_queue_full(cmd, cmd->se_dev, ret, true);
}
}
@@ -3011,6 +3038,8 @@ static int __transport_check_aborted_status(struct se_cmd *cmd, int send_status)
__releases(&cmd->t_state_lock)
__acquires(&cmd->t_state_lock)
{
+ int ret;
+
assert_spin_locked(&cmd->t_state_lock);
WARN_ON_ONCE(!irqs_disabled());
@@ -3034,7 +3063,9 @@ static int __transport_check_aborted_status(struct se_cmd *cmd, int send_status)
trace_target_cmd_complete(cmd);
spin_unlock_irq(&cmd->t_state_lock);
- cmd->se_tfo->queue_status(cmd);
+ ret = cmd->se_tfo->queue_status(cmd);
+ if (ret)
+ transport_handle_queue_full(cmd, cmd->se_dev, ret, false);
spin_lock_irq(&cmd->t_state_lock);
return 1;
@@ -3055,6 +3086,7 @@ EXPORT_SYMBOL(transport_check_aborted_status);
void transport_send_task_abort(struct se_cmd *cmd)
{
unsigned long flags;
+ int ret;
spin_lock_irqsave(&cmd->t_state_lock, flags);
if (cmd->se_cmd_flags & (SCF_SENT_CHECK_CONDITION)) {
@@ -3090,7 +3122,9 @@ send_abort:
cmd->t_task_cdb[0], cmd->tag);
trace_target_cmd_complete(cmd);
- cmd->se_tfo->queue_status(cmd);
+ ret = cmd->se_tfo->queue_status(cmd);
+ if (ret)
+ transport_handle_queue_full(cmd, cmd->se_dev, ret, false);
}
static void target_tmr_work(struct work_struct *work)
diff --git a/drivers/target/target_core_user.c b/drivers/target/target_core_user.c
index c6874c38a10b..f615c3bbb73e 100644
--- a/drivers/target/target_core_user.c
+++ b/drivers/target/target_core_user.c
@@ -311,24 +311,50 @@ static void free_data_area(struct tcmu_dev *udev, struct tcmu_cmd *cmd)
DATA_BLOCK_BITS);
}
-static void gather_data_area(struct tcmu_dev *udev, unsigned long *cmd_bitmap,
- struct scatterlist *data_sg, unsigned int data_nents)
+static void gather_data_area(struct tcmu_dev *udev, struct tcmu_cmd *cmd,
+ bool bidi)
{
+ struct se_cmd *se_cmd = cmd->se_cmd;
int i, block;
int block_remaining = 0;
void *from, *to;
size_t copy_bytes, from_offset;
- struct scatterlist *sg;
+ struct scatterlist *sg, *data_sg;
+ unsigned int data_nents;
+ DECLARE_BITMAP(bitmap, DATA_BLOCK_BITS);
+
+ bitmap_copy(bitmap, cmd->data_bitmap, DATA_BLOCK_BITS);
+
+ if (!bidi) {
+ data_sg = se_cmd->t_data_sg;
+ data_nents = se_cmd->t_data_nents;
+ } else {
+ uint32_t count;
+
+ /*
+ * For bidi case, the first count blocks are for Data-Out
+ * buffer blocks, and before gathering the Data-In buffer
+ * the Data-Out buffer blocks should be discarded.
+ */
+ count = DIV_ROUND_UP(se_cmd->data_length, DATA_BLOCK_SIZE);
+ while (count--) {
+ block = find_first_bit(bitmap, DATA_BLOCK_BITS);
+ clear_bit(block, bitmap);
+ }
+
+ data_sg = se_cmd->t_bidi_data_sg;
+ data_nents = se_cmd->t_bidi_data_nents;
+ }
for_each_sg(data_sg, sg, data_nents, i) {
int sg_remaining = sg->length;
to = kmap_atomic(sg_page(sg)) + sg->offset;
while (sg_remaining > 0) {
if (block_remaining == 0) {
- block = find_first_bit(cmd_bitmap,
+ block = find_first_bit(bitmap,
DATA_BLOCK_BITS);
block_remaining = DATA_BLOCK_SIZE;
- clear_bit(block, cmd_bitmap);
+ clear_bit(block, bitmap);
}
copy_bytes = min_t(size_t, sg_remaining,
block_remaining);
@@ -394,6 +420,27 @@ static bool is_ring_space_avail(struct tcmu_dev *udev, size_t cmd_size, size_t d
return true;
}
+static inline size_t tcmu_cmd_get_data_length(struct tcmu_cmd *tcmu_cmd)
+{
+ struct se_cmd *se_cmd = tcmu_cmd->se_cmd;
+ size_t data_length = round_up(se_cmd->data_length, DATA_BLOCK_SIZE);
+
+ if (se_cmd->se_cmd_flags & SCF_BIDI) {
+ BUG_ON(!(se_cmd->t_bidi_data_sg && se_cmd->t_bidi_data_nents));
+ data_length += round_up(se_cmd->t_bidi_data_sg->length,
+ DATA_BLOCK_SIZE);
+ }
+
+ return data_length;
+}
+
+static inline uint32_t tcmu_cmd_get_block_cnt(struct tcmu_cmd *tcmu_cmd)
+{
+ size_t data_length = tcmu_cmd_get_data_length(tcmu_cmd);
+
+ return data_length / DATA_BLOCK_SIZE;
+}
+
static sense_reason_t
tcmu_queue_cmd_ring(struct tcmu_cmd *tcmu_cmd)
{
@@ -407,7 +454,7 @@ tcmu_queue_cmd_ring(struct tcmu_cmd *tcmu_cmd)
uint32_t cmd_head;
uint64_t cdb_off;
bool copy_to_data_area;
- size_t data_length;
+ size_t data_length = tcmu_cmd_get_data_length(tcmu_cmd);
DECLARE_BITMAP(old_bitmap, DATA_BLOCK_BITS);
if (test_bit(TCMU_DEV_BIT_BROKEN, &udev->flags))
@@ -421,8 +468,7 @@ tcmu_queue_cmd_ring(struct tcmu_cmd *tcmu_cmd)
* expensive to tell how many regions are freed in the bitmap
*/
base_command_size = max(offsetof(struct tcmu_cmd_entry,
- req.iov[se_cmd->t_bidi_data_nents +
- se_cmd->t_data_nents]),
+ req.iov[tcmu_cmd_get_block_cnt(tcmu_cmd)]),
sizeof(struct tcmu_cmd_entry));
command_size = base_command_size
+ round_up(scsi_command_size(se_cmd->t_task_cdb), TCMU_OP_ALIGN_SIZE);
@@ -433,11 +479,6 @@ tcmu_queue_cmd_ring(struct tcmu_cmd *tcmu_cmd)
mb = udev->mb_addr;
cmd_head = mb->cmd_head % udev->cmdr_size; /* UAM */
- data_length = se_cmd->data_length;
- if (se_cmd->se_cmd_flags & SCF_BIDI) {
- BUG_ON(!(se_cmd->t_bidi_data_sg && se_cmd->t_bidi_data_nents));
- data_length += se_cmd->t_bidi_data_sg->length;
- }
if ((command_size > (udev->cmdr_size / 2)) ||
data_length > udev->data_size) {
pr_warn("TCMU: Request of size %zu/%zu is too big for %u/%zu "
@@ -511,11 +552,14 @@ tcmu_queue_cmd_ring(struct tcmu_cmd *tcmu_cmd)
entry->req.iov_dif_cnt = 0;
/* Handle BIDI commands */
- iov_cnt = 0;
- alloc_and_scatter_data_area(udev, se_cmd->t_bidi_data_sg,
- se_cmd->t_bidi_data_nents, &iov, &iov_cnt, false);
- entry->req.iov_bidi_cnt = iov_cnt;
-
+ if (se_cmd->se_cmd_flags & SCF_BIDI) {
+ iov_cnt = 0;
+ iov++;
+ alloc_and_scatter_data_area(udev, se_cmd->t_bidi_data_sg,
+ se_cmd->t_bidi_data_nents, &iov, &iov_cnt,
+ false);
+ entry->req.iov_bidi_cnt = iov_cnt;
+ }
/* cmd's data_bitmap is what changed in process */
bitmap_xor(tcmu_cmd->data_bitmap, old_bitmap, udev->data_bitmap,
DATA_BLOCK_BITS);
@@ -592,19 +636,11 @@ static void tcmu_handle_completion(struct tcmu_cmd *cmd, struct tcmu_cmd_entry *
se_cmd->scsi_sense_length);
free_data_area(udev, cmd);
} else if (se_cmd->se_cmd_flags & SCF_BIDI) {
- DECLARE_BITMAP(bitmap, DATA_BLOCK_BITS);
-
/* Get Data-In buffer before clean up */
- bitmap_copy(bitmap, cmd->data_bitmap, DATA_BLOCK_BITS);
- gather_data_area(udev, bitmap,
- se_cmd->t_bidi_data_sg, se_cmd->t_bidi_data_nents);
+ gather_data_area(udev, cmd, true);
free_data_area(udev, cmd);
} else if (se_cmd->data_direction == DMA_FROM_DEVICE) {
- DECLARE_BITMAP(bitmap, DATA_BLOCK_BITS);
-
- bitmap_copy(bitmap, cmd->data_bitmap, DATA_BLOCK_BITS);
- gather_data_area(udev, bitmap,
- se_cmd->t_data_sg, se_cmd->t_data_nents);
+ gather_data_area(udev, cmd, false);
free_data_area(udev, cmd);
} else if (se_cmd->data_direction == DMA_TO_DEVICE) {
free_data_area(udev, cmd);
@@ -1196,11 +1232,6 @@ static ssize_t tcmu_cmd_time_out_store(struct config_item *item, const char *pag
if (ret < 0)
return ret;
- if (!val) {
- pr_err("Illegal value for cmd_time_out\n");
- return -EINVAL;
- }
-
udev->cmd_time_out = val * MSEC_PER_SEC;
return count;
}
diff --git a/drivers/usb/gadget/function/f_tcm.c b/drivers/usb/gadget/function/f_tcm.c
index d2351139342f..a82e2bd5ea34 100644
--- a/drivers/usb/gadget/function/f_tcm.c
+++ b/drivers/usb/gadget/function/f_tcm.c
@@ -373,7 +373,7 @@ static void bot_cleanup_old_alt(struct f_uas *fu)
usb_ep_free_request(fu->ep_in, fu->bot_req_in);
usb_ep_free_request(fu->ep_out, fu->bot_req_out);
usb_ep_free_request(fu->ep_out, fu->cmd.req);
- usb_ep_free_request(fu->ep_out, fu->bot_status.req);
+ usb_ep_free_request(fu->ep_in, fu->bot_status.req);
kfree(fu->cmd.buf);
diff --git a/drivers/video/fbdev/efifb.c b/drivers/video/fbdev/efifb.c
index 8c4dc1e1f94f..b827a8113e26 100644
--- a/drivers/video/fbdev/efifb.c
+++ b/drivers/video/fbdev/efifb.c
@@ -10,6 +10,7 @@
#include <linux/efi.h>
#include <linux/errno.h>
#include <linux/fb.h>
+#include <linux/pci.h>
#include <linux/platform_device.h>
#include <linux/screen_info.h>
#include <video/vga.h>
@@ -143,6 +144,8 @@ static struct attribute *efifb_attrs[] = {
};
ATTRIBUTE_GROUPS(efifb);
+static bool pci_dev_disabled; /* FB base matches BAR of a disabled device */
+
static int efifb_probe(struct platform_device *dev)
{
struct fb_info *info;
@@ -152,7 +155,7 @@ static int efifb_probe(struct platform_device *dev)
unsigned int size_total;
char *option = NULL;
- if (screen_info.orig_video_isVGA != VIDEO_TYPE_EFI)
+ if (screen_info.orig_video_isVGA != VIDEO_TYPE_EFI || pci_dev_disabled)
return -ENODEV;
if (fb_get_options("efifb", &option))
@@ -360,3 +363,64 @@ static struct platform_driver efifb_driver = {
};
builtin_platform_driver(efifb_driver);
+
+#if defined(CONFIG_PCI) && !defined(CONFIG_X86)
+
+static bool pci_bar_found; /* did we find a BAR matching the efifb base? */
+
+static void claim_efifb_bar(struct pci_dev *dev, int idx)
+{
+ u16 word;
+
+ pci_bar_found = true;
+
+ pci_read_config_word(dev, PCI_COMMAND, &word);
+ if (!(word & PCI_COMMAND_MEMORY)) {
+ pci_dev_disabled = true;
+ dev_err(&dev->dev,
+ "BAR %d: assigned to efifb but device is disabled!\n",
+ idx);
+ return;
+ }
+
+ if (pci_claim_resource(dev, idx)) {
+ pci_dev_disabled = true;
+ dev_err(&dev->dev,
+ "BAR %d: failed to claim resource for efifb!\n", idx);
+ return;
+ }
+
+ dev_info(&dev->dev, "BAR %d: assigned to efifb\n", idx);
+}
+
+static void efifb_fixup_resources(struct pci_dev *dev)
+{
+ u64 base = screen_info.lfb_base;
+ u64 size = screen_info.lfb_size;
+ int i;
+
+ if (pci_bar_found || screen_info.orig_video_isVGA != VIDEO_TYPE_EFI)
+ return;
+
+ if (screen_info.capabilities & VIDEO_CAPABILITY_64BIT_BASE)
+ base |= (u64)screen_info.ext_lfb_base << 32;
+
+ if (!base)
+ return;
+
+ for (i = 0; i < PCI_STD_RESOURCE_END; i++) {
+ struct resource *res = &dev->resource[i];
+
+ if (!(res->flags & IORESOURCE_MEM))
+ continue;
+
+ if (res->start <= base && res->end >= base + size - 1) {
+ claim_efifb_bar(dev, i);
+ break;
+ }
+ }
+}
+DECLARE_PCI_FIXUP_CLASS_HEADER(PCI_ANY_ID, PCI_ANY_ID, PCI_BASE_CLASS_DISPLAY,
+ 16, efifb_fixup_resources);
+
+#endif
diff --git a/drivers/video/fbdev/omap/omapfb_main.c b/drivers/video/fbdev/omap/omapfb_main.c
index 1abba07b84b3..f4cbfb3b8a09 100644
--- a/drivers/video/fbdev/omap/omapfb_main.c
+++ b/drivers/video/fbdev/omap/omapfb_main.c
@@ -1608,19 +1608,6 @@ static int omapfb_find_ctrl(struct omapfb_device *fbdev)
return 0;
}
-static void check_required_callbacks(struct omapfb_device *fbdev)
-{
-#define _C(x) (fbdev->ctrl->x != NULL)
-#define _P(x) (fbdev->panel->x != NULL)
- BUG_ON(fbdev->ctrl == NULL || fbdev->panel == NULL);
- BUG_ON(!(_C(init) && _C(cleanup) && _C(get_caps) &&
- _C(set_update_mode) && _C(setup_plane) && _C(enable_plane) &&
- _P(init) && _P(cleanup) && _P(enable) && _P(disable) &&
- _P(get_caps)));
-#undef _P
-#undef _C
-}
-
/*
* Called by LDM binding to probe and attach a new device.
* Initialization sequence:
@@ -1705,8 +1692,6 @@ static int omapfb_do_probe(struct platform_device *pdev,
omapfb_ops.fb_mmap = omapfb_mmap;
init_state++;
- check_required_callbacks(fbdev);
-
r = planes_init(fbdev);
if (r)
goto cleanup;
diff --git a/drivers/video/fbdev/ssd1307fb.c b/drivers/video/fbdev/ssd1307fb.c
index bd017b57c47f..f599520374dd 100644
--- a/drivers/video/fbdev/ssd1307fb.c
+++ b/drivers/video/fbdev/ssd1307fb.c
@@ -578,10 +578,14 @@ static int ssd1307fb_probe(struct i2c_client *client,
par->vbat_reg = devm_regulator_get_optional(&client->dev, "vbat");
if (IS_ERR(par->vbat_reg)) {
- dev_err(&client->dev, "failed to get VBAT regulator: %ld\n",
- PTR_ERR(par->vbat_reg));
ret = PTR_ERR(par->vbat_reg);
- goto fb_alloc_error;
+ if (ret == -ENODEV) {
+ par->vbat_reg = NULL;
+ } else {
+ dev_err(&client->dev, "failed to get VBAT regulator: %d\n",
+ ret);
+ goto fb_alloc_error;
+ }
}
if (of_property_read_u32(node, "solomon,width", &par->width))
@@ -668,10 +672,13 @@ static int ssd1307fb_probe(struct i2c_client *client,
udelay(4);
}
- ret = regulator_enable(par->vbat_reg);
- if (ret) {
- dev_err(&client->dev, "failed to enable VBAT: %d\n", ret);
- goto reset_oled_error;
+ if (par->vbat_reg) {
+ ret = regulator_enable(par->vbat_reg);
+ if (ret) {
+ dev_err(&client->dev, "failed to enable VBAT: %d\n",
+ ret);
+ goto reset_oled_error;
+ }
}
ret = ssd1307fb_init(par);
@@ -710,7 +717,8 @@ panel_init_error:
pwm_put(par->pwm);
};
regulator_enable_error:
- regulator_disable(par->vbat_reg);
+ if (par->vbat_reg)
+ regulator_disable(par->vbat_reg);
reset_oled_error:
fb_deferred_io_cleanup(info);
fb_alloc_error:
diff --git a/drivers/video/fbdev/xen-fbfront.c b/drivers/video/fbdev/xen-fbfront.c
index d0115a7af0a9..3ee309c50b2d 100644
--- a/drivers/video/fbdev/xen-fbfront.c
+++ b/drivers/video/fbdev/xen-fbfront.c
@@ -643,7 +643,6 @@ static void xenfb_backend_changed(struct xenbus_device *dev,
break;
case XenbusStateInitWait:
-InitWait:
xenbus_switch_state(dev, XenbusStateConnected);
break;
@@ -654,7 +653,8 @@ InitWait:
* get Connected twice here.
*/
if (dev->state != XenbusStateConnected)
- goto InitWait; /* no InitWait seen yet, fudge it */
+ /* no InitWait seen yet, fudge it */
+ xenbus_switch_state(dev, XenbusStateConnected);
if (xenbus_read_unsigned(info->xbdev->otherend,
"request-update", 0))
diff --git a/drivers/virtio/virtio.c b/drivers/virtio/virtio.c
index 400d70b69379..48230a5e12f2 100644
--- a/drivers/virtio/virtio.c
+++ b/drivers/virtio/virtio.c
@@ -232,6 +232,12 @@ static int virtio_dev_probe(struct device *_d)
if (device_features & (1ULL << i))
__virtio_set_bit(dev, i);
+ if (drv->validate) {
+ err = drv->validate(dev);
+ if (err)
+ goto err;
+ }
+
err = virtio_finalize_features(dev);
if (err)
goto err;
diff --git a/drivers/virtio/virtio_pci_common.c b/drivers/virtio/virtio_pci_common.c
index 590534910dc6..698d5d06fa03 100644
--- a/drivers/virtio/virtio_pci_common.c
+++ b/drivers/virtio/virtio_pci_common.c
@@ -33,8 +33,10 @@ void vp_synchronize_vectors(struct virtio_device *vdev)
struct virtio_pci_device *vp_dev = to_vp_device(vdev);
int i;
- synchronize_irq(pci_irq_vector(vp_dev->pci_dev, 0));
- for (i = 1; i < vp_dev->msix_vectors; i++)
+ if (vp_dev->intx_enabled)
+ synchronize_irq(vp_dev->pci_dev->irq);
+
+ for (i = 0; i < vp_dev->msix_vectors; ++i)
synchronize_irq(pci_irq_vector(vp_dev->pci_dev, i));
}
@@ -60,13 +62,16 @@ static irqreturn_t vp_config_changed(int irq, void *opaque)
static irqreturn_t vp_vring_interrupt(int irq, void *opaque)
{
struct virtio_pci_device *vp_dev = opaque;
+ struct virtio_pci_vq_info *info;
irqreturn_t ret = IRQ_NONE;
- struct virtqueue *vq;
+ unsigned long flags;
- list_for_each_entry(vq, &vp_dev->vdev.vqs, list) {
- if (vq->callback && vring_interrupt(irq, vq) == IRQ_HANDLED)
+ spin_lock_irqsave(&vp_dev->lock, flags);
+ list_for_each_entry(info, &vp_dev->virtqueues, node) {
+ if (vring_interrupt(irq, info->vq) == IRQ_HANDLED)
ret = IRQ_HANDLED;
}
+ spin_unlock_irqrestore(&vp_dev->lock, flags);
return ret;
}
@@ -97,186 +102,244 @@ static irqreturn_t vp_interrupt(int irq, void *opaque)
return vp_vring_interrupt(irq, opaque);
}
-static void vp_remove_vqs(struct virtio_device *vdev)
+static int vp_request_msix_vectors(struct virtio_device *vdev, int nvectors,
+ bool per_vq_vectors, struct irq_affinity *desc)
{
struct virtio_pci_device *vp_dev = to_vp_device(vdev);
- struct virtqueue *vq, *n;
+ const char *name = dev_name(&vp_dev->vdev.dev);
+ unsigned i, v;
+ int err = -ENOMEM;
- list_for_each_entry_safe(vq, n, &vdev->vqs, list) {
- if (vp_dev->msix_vector_map) {
- int v = vp_dev->msix_vector_map[vq->index];
+ vp_dev->msix_vectors = nvectors;
- if (v != VIRTIO_MSI_NO_VECTOR)
- free_irq(pci_irq_vector(vp_dev->pci_dev, v),
- vq);
- }
- vp_dev->del_vq(vq);
+ vp_dev->msix_names = kmalloc(nvectors * sizeof *vp_dev->msix_names,
+ GFP_KERNEL);
+ if (!vp_dev->msix_names)
+ goto error;
+ vp_dev->msix_affinity_masks
+ = kzalloc(nvectors * sizeof *vp_dev->msix_affinity_masks,
+ GFP_KERNEL);
+ if (!vp_dev->msix_affinity_masks)
+ goto error;
+ for (i = 0; i < nvectors; ++i)
+ if (!alloc_cpumask_var(&vp_dev->msix_affinity_masks[i],
+ GFP_KERNEL))
+ goto error;
+
+ err = pci_alloc_irq_vectors_affinity(vp_dev->pci_dev, nvectors,
+ nvectors, PCI_IRQ_MSIX |
+ (desc ? PCI_IRQ_AFFINITY : 0),
+ desc);
+ if (err < 0)
+ goto error;
+ vp_dev->msix_enabled = 1;
+
+ /* Set the vector used for configuration */
+ v = vp_dev->msix_used_vectors;
+ snprintf(vp_dev->msix_names[v], sizeof *vp_dev->msix_names,
+ "%s-config", name);
+ err = request_irq(pci_irq_vector(vp_dev->pci_dev, v),
+ vp_config_changed, 0, vp_dev->msix_names[v],
+ vp_dev);
+ if (err)
+ goto error;
+ ++vp_dev->msix_used_vectors;
+
+ v = vp_dev->config_vector(vp_dev, v);
+ /* Verify we had enough resources to assign the vector */
+ if (v == VIRTIO_MSI_NO_VECTOR) {
+ err = -EBUSY;
+ goto error;
}
+
+ if (!per_vq_vectors) {
+ /* Shared vector for all VQs */
+ v = vp_dev->msix_used_vectors;
+ snprintf(vp_dev->msix_names[v], sizeof *vp_dev->msix_names,
+ "%s-virtqueues", name);
+ err = request_irq(pci_irq_vector(vp_dev->pci_dev, v),
+ vp_vring_interrupt, 0, vp_dev->msix_names[v],
+ vp_dev);
+ if (err)
+ goto error;
+ ++vp_dev->msix_used_vectors;
+ }
+ return 0;
+error:
+ return err;
+}
+
+static struct virtqueue *vp_setup_vq(struct virtio_device *vdev, unsigned index,
+ void (*callback)(struct virtqueue *vq),
+ const char *name,
+ u16 msix_vec)
+{
+ struct virtio_pci_device *vp_dev = to_vp_device(vdev);
+ struct virtio_pci_vq_info *info = kmalloc(sizeof *info, GFP_KERNEL);
+ struct virtqueue *vq;
+ unsigned long flags;
+
+ /* fill out our structure that represents an active queue */
+ if (!info)
+ return ERR_PTR(-ENOMEM);
+
+ vq = vp_dev->setup_vq(vp_dev, info, index, callback, name,
+ msix_vec);
+ if (IS_ERR(vq))
+ goto out_info;
+
+ info->vq = vq;
+ if (callback) {
+ spin_lock_irqsave(&vp_dev->lock, flags);
+ list_add(&info->node, &vp_dev->virtqueues);
+ spin_unlock_irqrestore(&vp_dev->lock, flags);
+ } else {
+ INIT_LIST_HEAD(&info->node);
+ }
+
+ vp_dev->vqs[index] = info;
+ return vq;
+
+out_info:
+ kfree(info);
+ return vq;
+}
+
+static void vp_del_vq(struct virtqueue *vq)
+{
+ struct virtio_pci_device *vp_dev = to_vp_device(vq->vdev);
+ struct virtio_pci_vq_info *info = vp_dev->vqs[vq->index];
+ unsigned long flags;
+
+ spin_lock_irqsave(&vp_dev->lock, flags);
+ list_del(&info->node);
+ spin_unlock_irqrestore(&vp_dev->lock, flags);
+
+ vp_dev->del_vq(info);
+ kfree(info);
}
/* the config->del_vqs() implementation */
void vp_del_vqs(struct virtio_device *vdev)
{
struct virtio_pci_device *vp_dev = to_vp_device(vdev);
+ struct virtqueue *vq, *n;
int i;
- if (WARN_ON_ONCE(list_empty_careful(&vdev->vqs)))
- return;
+ list_for_each_entry_safe(vq, n, &vdev->vqs, list) {
+ if (vp_dev->per_vq_vectors) {
+ int v = vp_dev->vqs[vq->index]->msix_vector;
- vp_remove_vqs(vdev);
+ if (v != VIRTIO_MSI_NO_VECTOR) {
+ int irq = pci_irq_vector(vp_dev->pci_dev, v);
+
+ irq_set_affinity_hint(irq, NULL);
+ free_irq(irq, vq);
+ }
+ }
+ vp_del_vq(vq);
+ }
+ vp_dev->per_vq_vectors = false;
+
+ if (vp_dev->intx_enabled) {
+ free_irq(vp_dev->pci_dev->irq, vp_dev);
+ vp_dev->intx_enabled = 0;
+ }
- if (vp_dev->pci_dev->msix_enabled) {
- for (i = 0; i < vp_dev->msix_vectors; i++)
+ for (i = 0; i < vp_dev->msix_used_vectors; ++i)
+ free_irq(pci_irq_vector(vp_dev->pci_dev, i), vp_dev);
+
+ for (i = 0; i < vp_dev->msix_vectors; i++)
+ if (vp_dev->msix_affinity_masks[i])
free_cpumask_var(vp_dev->msix_affinity_masks[i]);
+ if (vp_dev->msix_enabled) {
/* Disable the vector used for configuration */
vp_dev->config_vector(vp_dev, VIRTIO_MSI_NO_VECTOR);
- kfree(vp_dev->msix_affinity_masks);
- kfree(vp_dev->msix_names);
- kfree(vp_dev->msix_vector_map);
+ pci_free_irq_vectors(vp_dev->pci_dev);
+ vp_dev->msix_enabled = 0;
}
- free_irq(pci_irq_vector(vp_dev->pci_dev, 0), vp_dev);
- pci_free_irq_vectors(vp_dev->pci_dev);
+ vp_dev->msix_vectors = 0;
+ vp_dev->msix_used_vectors = 0;
+ kfree(vp_dev->msix_names);
+ vp_dev->msix_names = NULL;
+ kfree(vp_dev->msix_affinity_masks);
+ vp_dev->msix_affinity_masks = NULL;
+ kfree(vp_dev->vqs);
+ vp_dev->vqs = NULL;
}
static int vp_find_vqs_msix(struct virtio_device *vdev, unsigned nvqs,
struct virtqueue *vqs[], vq_callback_t *callbacks[],
- const char * const names[], struct irq_affinity *desc)
+ const char * const names[], bool per_vq_vectors,
+ struct irq_affinity *desc)
{
struct virtio_pci_device *vp_dev = to_vp_device(vdev);
- const char *name = dev_name(&vp_dev->vdev.dev);
- int i, j, err = -ENOMEM, allocated_vectors, nvectors;
- unsigned flags = PCI_IRQ_MSIX;
- bool shared = false;
u16 msix_vec;
+ int i, err, nvectors, allocated_vectors;
- if (desc) {
- flags |= PCI_IRQ_AFFINITY;
- desc->pre_vectors++; /* virtio config vector */
- }
-
- nvectors = 1;
- for (i = 0; i < nvqs; i++)
- if (callbacks[i])
- nvectors++;
-
- /* Try one vector per queue first. */
- err = pci_alloc_irq_vectors_affinity(vp_dev->pci_dev, nvectors,
- nvectors, flags, desc);
- if (err < 0) {
- /* Fallback to one vector for config, one shared for queues. */
- shared = true;
- err = pci_alloc_irq_vectors(vp_dev->pci_dev, 2, 2,
- PCI_IRQ_MSIX);
- if (err < 0)
- return err;
- }
- if (err < 0)
- return err;
-
- vp_dev->msix_vectors = nvectors;
- vp_dev->msix_names = kmalloc_array(nvectors,
- sizeof(*vp_dev->msix_names), GFP_KERNEL);
- if (!vp_dev->msix_names)
- goto out_free_irq_vectors;
-
- vp_dev->msix_affinity_masks = kcalloc(nvectors,
- sizeof(*vp_dev->msix_affinity_masks), GFP_KERNEL);
- if (!vp_dev->msix_affinity_masks)
- goto out_free_msix_names;
+ vp_dev->vqs = kcalloc(nvqs, sizeof(*vp_dev->vqs), GFP_KERNEL);
+ if (!vp_dev->vqs)
+ return -ENOMEM;
- for (i = 0; i < nvectors; ++i) {
- if (!alloc_cpumask_var(&vp_dev->msix_affinity_masks[i],
- GFP_KERNEL))
- goto out_free_msix_affinity_masks;
+ if (per_vq_vectors) {
+ /* Best option: one for change interrupt, one per vq. */
+ nvectors = 1;
+ for (i = 0; i < nvqs; ++i)
+ if (callbacks[i])
+ ++nvectors;
+ } else {
+ /* Second best: one for change, shared for all vqs. */
+ nvectors = 2;
}
- /* Set the vector used for configuration */
- snprintf(vp_dev->msix_names[0], sizeof(*vp_dev->msix_names),
- "%s-config", name);
- err = request_irq(pci_irq_vector(vp_dev->pci_dev, 0), vp_config_changed,
- 0, vp_dev->msix_names[0], vp_dev);
+ err = vp_request_msix_vectors(vdev, nvectors, per_vq_vectors,
+ per_vq_vectors ? desc : NULL);
if (err)
- goto out_free_msix_affinity_masks;
+ goto error_find;
- /* Verify we had enough resources to assign the vector */
- if (vp_dev->config_vector(vp_dev, 0) == VIRTIO_MSI_NO_VECTOR) {
- err = -EBUSY;
- goto out_free_config_irq;
- }
-
- vp_dev->msix_vector_map = kmalloc_array(nvqs,
- sizeof(*vp_dev->msix_vector_map), GFP_KERNEL);
- if (!vp_dev->msix_vector_map)
- goto out_disable_config_irq;
-
- allocated_vectors = j = 1; /* vector 0 is the config interrupt */
+ vp_dev->per_vq_vectors = per_vq_vectors;
+ allocated_vectors = vp_dev->msix_used_vectors;
for (i = 0; i < nvqs; ++i) {
if (!names[i]) {
vqs[i] = NULL;
continue;
}
- if (callbacks[i])
- msix_vec = allocated_vectors;
- else
+ if (!callbacks[i])
msix_vec = VIRTIO_MSI_NO_VECTOR;
-
- vqs[i] = vp_dev->setup_vq(vp_dev, i, callbacks[i], names[i],
- msix_vec);
+ else if (vp_dev->per_vq_vectors)
+ msix_vec = allocated_vectors++;
+ else
+ msix_vec = VP_MSIX_VQ_VECTOR;
+ vqs[i] = vp_setup_vq(vdev, i, callbacks[i], names[i],
+ msix_vec);
if (IS_ERR(vqs[i])) {
err = PTR_ERR(vqs[i]);
- goto out_remove_vqs;
+ goto error_find;
}
- if (msix_vec == VIRTIO_MSI_NO_VECTOR) {
- vp_dev->msix_vector_map[i] = VIRTIO_MSI_NO_VECTOR;
+ if (!vp_dev->per_vq_vectors || msix_vec == VIRTIO_MSI_NO_VECTOR)
continue;
- }
- snprintf(vp_dev->msix_names[j],
- sizeof(*vp_dev->msix_names), "%s-%s",
+ /* allocate per-vq irq if available and necessary */
+ snprintf(vp_dev->msix_names[msix_vec],
+ sizeof *vp_dev->msix_names,
+ "%s-%s",
dev_name(&vp_dev->vdev.dev), names[i]);
err = request_irq(pci_irq_vector(vp_dev->pci_dev, msix_vec),
- vring_interrupt, IRQF_SHARED,
- vp_dev->msix_names[j], vqs[i]);
- if (err) {
- /* don't free this irq on error */
- vp_dev->msix_vector_map[i] = VIRTIO_MSI_NO_VECTOR;
- goto out_remove_vqs;
- }
- vp_dev->msix_vector_map[i] = msix_vec;
- j++;
-
- /*
- * Use a different vector for each queue if they are available,
- * else share the same vector for all VQs.
- */
- if (!shared)
- allocated_vectors++;
+ vring_interrupt, 0,
+ vp_dev->msix_names[msix_vec],
+ vqs[i]);
+ if (err)
+ goto error_find;
}
-
return 0;
-out_remove_vqs:
- vp_remove_vqs(vdev);
- kfree(vp_dev->msix_vector_map);
-out_disable_config_irq:
- vp_dev->config_vector(vp_dev, VIRTIO_MSI_NO_VECTOR);
-out_free_config_irq:
- free_irq(pci_irq_vector(vp_dev->pci_dev, 0), vp_dev);
-out_free_msix_affinity_masks:
- for (i = 0; i < nvectors; i++) {
- if (vp_dev->msix_affinity_masks[i])
- free_cpumask_var(vp_dev->msix_affinity_masks[i]);
- }
- kfree(vp_dev->msix_affinity_masks);
-out_free_msix_names:
- kfree(vp_dev->msix_names);
-out_free_irq_vectors:
- pci_free_irq_vectors(vp_dev->pci_dev);
+error_find:
+ vp_del_vqs(vdev);
return err;
}
@@ -287,29 +350,33 @@ static int vp_find_vqs_intx(struct virtio_device *vdev, unsigned nvqs,
struct virtio_pci_device *vp_dev = to_vp_device(vdev);
int i, err;
+ vp_dev->vqs = kcalloc(nvqs, sizeof(*vp_dev->vqs), GFP_KERNEL);
+ if (!vp_dev->vqs)
+ return -ENOMEM;
+
err = request_irq(vp_dev->pci_dev->irq, vp_interrupt, IRQF_SHARED,
dev_name(&vdev->dev), vp_dev);
if (err)
- return err;
+ goto out_del_vqs;
+ vp_dev->intx_enabled = 1;
+ vp_dev->per_vq_vectors = false;
for (i = 0; i < nvqs; ++i) {
if (!names[i]) {
vqs[i] = NULL;
continue;
}
- vqs[i] = vp_dev->setup_vq(vp_dev, i, callbacks[i], names[i],
- VIRTIO_MSI_NO_VECTOR);
+ vqs[i] = vp_setup_vq(vdev, i, callbacks[i], names[i],
+ VIRTIO_MSI_NO_VECTOR);
if (IS_ERR(vqs[i])) {
err = PTR_ERR(vqs[i]);
- goto out_remove_vqs;
+ goto out_del_vqs;
}
}
return 0;
-
-out_remove_vqs:
- vp_remove_vqs(vdev);
- free_irq(pci_irq_vector(vp_dev->pci_dev, 0), vp_dev);
+out_del_vqs:
+ vp_del_vqs(vdev);
return err;
}
@@ -320,9 +387,15 @@ int vp_find_vqs(struct virtio_device *vdev, unsigned nvqs,
{
int err;
- err = vp_find_vqs_msix(vdev, nvqs, vqs, callbacks, names, desc);
+ /* Try MSI-X with one vector per queue. */
+ err = vp_find_vqs_msix(vdev, nvqs, vqs, callbacks, names, true, desc);
if (!err)
return 0;
+ /* Fallback: MSI-X with one vector for config, one shared for queues. */
+ err = vp_find_vqs_msix(vdev, nvqs, vqs, callbacks, names, false, desc);
+ if (!err)
+ return 0;
+ /* Finally fall back to regular interrupts. */
return vp_find_vqs_intx(vdev, nvqs, vqs, callbacks, names);
}
@@ -342,15 +415,16 @@ int vp_set_vq_affinity(struct virtqueue *vq, int cpu)
{
struct virtio_device *vdev = vq->vdev;
struct virtio_pci_device *vp_dev = to_vp_device(vdev);
+ struct virtio_pci_vq_info *info = vp_dev->vqs[vq->index];
+ struct cpumask *mask;
+ unsigned int irq;
if (!vq->callback)
return -EINVAL;
- if (vp_dev->pci_dev->msix_enabled) {
- int vec = vp_dev->msix_vector_map[vq->index];
- struct cpumask *mask = vp_dev->msix_affinity_masks[vec];
- unsigned int irq = pci_irq_vector(vp_dev->pci_dev, vec);
-
+ if (vp_dev->msix_enabled) {
+ mask = vp_dev->msix_affinity_masks[info->msix_vector];
+ irq = pci_irq_vector(vp_dev->pci_dev, info->msix_vector);
if (cpu == -1)
irq_set_affinity_hint(irq, NULL);
else {
@@ -365,12 +439,13 @@ int vp_set_vq_affinity(struct virtqueue *vq, int cpu)
const struct cpumask *vp_get_vq_affinity(struct virtio_device *vdev, int index)
{
struct virtio_pci_device *vp_dev = to_vp_device(vdev);
- unsigned int *map = vp_dev->msix_vector_map;
- if (!map || map[index] == VIRTIO_MSI_NO_VECTOR)
+ if (!vp_dev->per_vq_vectors ||
+ vp_dev->vqs[index]->msix_vector == VIRTIO_MSI_NO_VECTOR)
return NULL;
- return pci_irq_get_affinity(vp_dev->pci_dev, map[index]);
+ return pci_irq_get_affinity(vp_dev->pci_dev,
+ vp_dev->vqs[index]->msix_vector);
}
#ifdef CONFIG_PM_SLEEP
@@ -441,6 +516,8 @@ static int virtio_pci_probe(struct pci_dev *pci_dev,
vp_dev->vdev.dev.parent = &pci_dev->dev;
vp_dev->vdev.dev.release = virtio_pci_release_dev;
vp_dev->pci_dev = pci_dev;
+ INIT_LIST_HEAD(&vp_dev->virtqueues);
+ spin_lock_init(&vp_dev->lock);
/* enable the device */
rc = pci_enable_device(pci_dev);
diff --git a/drivers/virtio/virtio_pci_common.h b/drivers/virtio/virtio_pci_common.h
index ac8c9d788964..e96334aec1e0 100644
--- a/drivers/virtio/virtio_pci_common.h
+++ b/drivers/virtio/virtio_pci_common.h
@@ -31,6 +31,17 @@
#include <linux/highmem.h>
#include <linux/spinlock.h>
+struct virtio_pci_vq_info {
+ /* the actual virtqueue */
+ struct virtqueue *vq;
+
+ /* the list node for the virtqueues list */
+ struct list_head node;
+
+ /* MSI-X vector (or none) */
+ unsigned msix_vector;
+};
+
/* Our device structure */
struct virtio_pci_device {
struct virtio_device vdev;
@@ -64,25 +75,47 @@ struct virtio_pci_device {
/* the IO mapping for the PCI config space */
void __iomem *ioaddr;
+ /* a list of queues so we can dispatch IRQs */
+ spinlock_t lock;
+ struct list_head virtqueues;
+
+ /* array of all queues for house-keeping */
+ struct virtio_pci_vq_info **vqs;
+
+ /* MSI-X support */
+ int msix_enabled;
+ int intx_enabled;
cpumask_var_t *msix_affinity_masks;
/* Name strings for interrupts. This size should be enough,
* and I'm too lazy to allocate each name separately. */
char (*msix_names)[256];
- /* Total Number of MSI-X vectors (including per-VQ ones). */
- int msix_vectors;
- /* Map of per-VQ MSI-X vectors, may be NULL */
- unsigned *msix_vector_map;
+ /* Number of available vectors */
+ unsigned msix_vectors;
+ /* Vectors allocated, excluding per-vq vectors if any */
+ unsigned msix_used_vectors;
+
+ /* Whether we have vector per vq */
+ bool per_vq_vectors;
struct virtqueue *(*setup_vq)(struct virtio_pci_device *vp_dev,
+ struct virtio_pci_vq_info *info,
unsigned idx,
void (*callback)(struct virtqueue *vq),
const char *name,
u16 msix_vec);
- void (*del_vq)(struct virtqueue *vq);
+ void (*del_vq)(struct virtio_pci_vq_info *info);
u16 (*config_vector)(struct virtio_pci_device *vp_dev, u16 vector);
};
+/* Constants for MSI-X */
+/* Use first vector for configuration changes, second and the rest for
+ * virtqueues Thus, we need at least 2 vectors for MSI. */
+enum {
+ VP_MSIX_CONFIG_VECTOR = 0,
+ VP_MSIX_VQ_VECTOR = 1,
+};
+
/* Convert a generic virtio device to our structure */
static struct virtio_pci_device *to_vp_device(struct virtio_device *vdev)
{
diff --git a/drivers/virtio/virtio_pci_legacy.c b/drivers/virtio/virtio_pci_legacy.c
index f7362c5fe18a..4bfa48fb1324 100644
--- a/drivers/virtio/virtio_pci_legacy.c
+++ b/drivers/virtio/virtio_pci_legacy.c
@@ -112,6 +112,7 @@ static u16 vp_config_vector(struct virtio_pci_device *vp_dev, u16 vector)
}
static struct virtqueue *setup_vq(struct virtio_pci_device *vp_dev,
+ struct virtio_pci_vq_info *info,
unsigned index,
void (*callback)(struct virtqueue *vq),
const char *name,
@@ -129,6 +130,8 @@ static struct virtqueue *setup_vq(struct virtio_pci_device *vp_dev,
if (!num || ioread32(vp_dev->ioaddr + VIRTIO_PCI_QUEUE_PFN))
return ERR_PTR(-ENOENT);
+ info->msix_vector = msix_vec;
+
/* create the vring */
vq = vring_create_virtqueue(index, num,
VIRTIO_PCI_VRING_ALIGN, &vp_dev->vdev,
@@ -159,13 +162,14 @@ out_deactivate:
return ERR_PTR(err);
}
-static void del_vq(struct virtqueue *vq)
+static void del_vq(struct virtio_pci_vq_info *info)
{
+ struct virtqueue *vq = info->vq;
struct virtio_pci_device *vp_dev = to_vp_device(vq->vdev);
iowrite16(vq->index, vp_dev->ioaddr + VIRTIO_PCI_QUEUE_SEL);
- if (vp_dev->pci_dev->msix_enabled) {
+ if (vp_dev->msix_enabled) {
iowrite16(VIRTIO_MSI_NO_VECTOR,
vp_dev->ioaddr + VIRTIO_MSI_QUEUE_VECTOR);
/* Flush the write out to device */
diff --git a/drivers/virtio/virtio_pci_modern.c b/drivers/virtio/virtio_pci_modern.c
index 7bc3004b840e..8978f109d2d7 100644
--- a/drivers/virtio/virtio_pci_modern.c
+++ b/drivers/virtio/virtio_pci_modern.c
@@ -293,6 +293,7 @@ static u16 vp_config_vector(struct virtio_pci_device *vp_dev, u16 vector)
}
static struct virtqueue *setup_vq(struct virtio_pci_device *vp_dev,
+ struct virtio_pci_vq_info *info,
unsigned index,
void (*callback)(struct virtqueue *vq),
const char *name,
@@ -322,6 +323,8 @@ static struct virtqueue *setup_vq(struct virtio_pci_device *vp_dev,
/* get offset of notification word for this vq */
off = vp_ioread16(&cfg->queue_notify_off);
+ info->msix_vector = msix_vec;
+
/* create the vring */
vq = vring_create_virtqueue(index, num,
SMP_CACHE_BYTES, &vp_dev->vdev,
@@ -405,13 +408,14 @@ static int vp_modern_find_vqs(struct virtio_device *vdev, unsigned nvqs,
return 0;
}
-static void del_vq(struct virtqueue *vq)
+static void del_vq(struct virtio_pci_vq_info *info)
{
+ struct virtqueue *vq = info->vq;
struct virtio_pci_device *vp_dev = to_vp_device(vq->vdev);
vp_iowrite16(vq->index, &vp_dev->common->queue_select);
- if (vp_dev->pci_dev->msix_enabled) {
+ if (vp_dev->msix_enabled) {
vp_iowrite16(VIRTIO_MSI_NO_VECTOR,
&vp_dev->common->queue_msix_vector);
/* Flush the write out to device */
diff --git a/drivers/xen/xenbus/xenbus_dev_frontend.c b/drivers/xen/xenbus/xenbus_dev_frontend.c
index 1f4733b80c87..f3b089b7c0b6 100644
--- a/drivers/xen/xenbus/xenbus_dev_frontend.c
+++ b/drivers/xen/xenbus/xenbus_dev_frontend.c
@@ -442,8 +442,10 @@ static int xenbus_write_transaction(unsigned msg_type,
return xenbus_command_reply(u, XS_ERROR, "ENOENT");
rc = xenbus_dev_request_and_reply(&u->u.msg, u);
- if (rc)
+ if (rc && trans) {
+ list_del(&trans->list);
kfree(trans);
+ }
out:
return rc;