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authorDave Airlie <airlied@redhat.com>2022-03-01 09:19:02 +0300
committerDave Airlie <airlied@redhat.com>2022-03-01 09:19:02 +0300
commit38a15ad9488e21cad8f42d3befca20f91e5b2874 (patch)
tree1cf0076b59faba3cd3db4e05d3ee071a3c218cbe /drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c
parent6c64ae228f0826859c56711ce133aff037d6205f (diff)
parent111aeed25ec6bf4d5b4a7b4cb5654f002ba9f795 (diff)
downloadlinux-38a15ad9488e21cad8f42d3befca20f91e5b2874.tar.xz
Merge tag 'amd-drm-next-5.18-2022-02-25' of https://gitlab.freedesktop.org/agd5f/linux into drm-next
amd-drm-next-5.18-2022-02-25: amdgpu: - Raven2 suspend/resume fix - SDMA 5.2.6 updates - VCN 3.1.2 updates - SMU 13.0.5 updates - DCN 3.1.5 updates - Virtual display fixes - SMU code cleanup - Harvest fixes - Expose benchmark tests via debugfs - Drop no longer relevant gart aperture tests - More RAS restructuring - W=1 fixes - PSR rework - DP/VGA adapter fixes - DP MST fixes - GPUVM eviction fix - GPU reset debugfs register dumping support - Misc display fixes - SR-IOV fix - Aldebaran mGPU fix - Add module parameter to disable XGMI for testing amdkfd: - IH ring overflow logging fixes - CRIU fixes - Misc fixes Signed-off-by: Dave Airlie <airlied@redhat.com> From: Alex Deucher <alexander.deucher@amd.com> Link: https://patchwork.freedesktop.org/patch/msgid/20220225183535.5907-1-alexander.deucher@amd.com
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c')
-rw-r--r--drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c105
1 files changed, 105 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c
index ae0c83237608..426b63e4f1f6 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c
@@ -1364,6 +1364,25 @@ static int amdgpu_debugfs_evict_gtt(void *data, u64 *val)
return 0;
}
+static int amdgpu_debugfs_benchmark(void *data, u64 val)
+{
+ struct amdgpu_device *adev = (struct amdgpu_device *)data;
+ struct drm_device *dev = adev_to_drm(adev);
+ int r;
+
+ r = pm_runtime_get_sync(dev->dev);
+ if (r < 0) {
+ pm_runtime_put_autosuspend(dev->dev);
+ return r;
+ }
+
+ r = amdgpu_benchmark(adev, val);
+
+ pm_runtime_mark_last_busy(dev->dev);
+ pm_runtime_put_autosuspend(dev->dev);
+
+ return r;
+}
static int amdgpu_debugfs_vm_info_show(struct seq_file *m, void *unused)
{
@@ -1400,6 +1419,8 @@ DEFINE_DEBUGFS_ATTRIBUTE(amdgpu_evict_vram_fops, amdgpu_debugfs_evict_vram,
NULL, "%lld\n");
DEFINE_DEBUGFS_ATTRIBUTE(amdgpu_evict_gtt_fops, amdgpu_debugfs_evict_gtt,
NULL, "%lld\n");
+DEFINE_DEBUGFS_ATTRIBUTE(amdgpu_benchmark_fops, NULL, amdgpu_debugfs_benchmark,
+ "%lld\n");
static void amdgpu_ib_preempt_fences_swap(struct amdgpu_ring *ring,
struct dma_fence **fences)
@@ -1619,6 +1640,86 @@ DEFINE_DEBUGFS_ATTRIBUTE(fops_ib_preempt, NULL,
DEFINE_DEBUGFS_ATTRIBUTE(fops_sclk_set, NULL,
amdgpu_debugfs_sclk_set, "%llu\n");
+static ssize_t amdgpu_reset_dump_register_list_read(struct file *f,
+ char __user *buf, size_t size, loff_t *pos)
+{
+ struct amdgpu_device *adev = (struct amdgpu_device *)file_inode(f)->i_private;
+ char reg_offset[12];
+ int i, ret, len = 0;
+
+ if (*pos)
+ return 0;
+
+ memset(reg_offset, 0, 12);
+ ret = down_read_killable(&adev->reset_domain->sem);
+ if (ret)
+ return ret;
+
+ for (i = 0; i < adev->num_regs; i++) {
+ sprintf(reg_offset, "0x%x\n", adev->reset_dump_reg_list[i]);
+ up_read(&adev->reset_domain->sem);
+ if (copy_to_user(buf + len, reg_offset, strlen(reg_offset)))
+ return -EFAULT;
+
+ len += strlen(reg_offset);
+ ret = down_read_killable(&adev->reset_domain->sem);
+ if (ret)
+ return ret;
+ }
+
+ up_read(&adev->reset_domain->sem);
+ *pos += len;
+
+ return len;
+}
+
+static ssize_t amdgpu_reset_dump_register_list_write(struct file *f,
+ const char __user *buf, size_t size, loff_t *pos)
+{
+ struct amdgpu_device *adev = (struct amdgpu_device *)file_inode(f)->i_private;
+ char reg_offset[11];
+ uint32_t *tmp;
+ int ret, i = 0, len = 0;
+
+ do {
+ memset(reg_offset, 0, 11);
+ if (copy_from_user(reg_offset, buf + len,
+ min(10, ((int)size-len)))) {
+ ret = -EFAULT;
+ goto error_free;
+ }
+
+ tmp = krealloc_array(tmp, i + 1, sizeof(uint32_t), GFP_KERNEL);
+ if (sscanf(reg_offset, "%X %n", &tmp[i], &ret) != 1) {
+ ret = -EINVAL;
+ goto error_free;
+ }
+
+ len += ret;
+ i++;
+ } while (len < size);
+
+ ret = down_write_killable(&adev->reset_domain->sem);
+ if (ret)
+ goto error_free;
+
+ swap(adev->reset_dump_reg_list, tmp);
+ adev->num_regs = i;
+ up_write(&adev->reset_domain->sem);
+ ret = size;
+
+error_free:
+ kfree(tmp);
+ return ret;
+}
+
+static const struct file_operations amdgpu_reset_dump_register_list = {
+ .owner = THIS_MODULE,
+ .read = amdgpu_reset_dump_register_list_read,
+ .write = amdgpu_reset_dump_register_list_write,
+ .llseek = default_llseek
+};
+
int amdgpu_debugfs_init(struct amdgpu_device *adev)
{
struct dentry *root = adev_to_drm(adev)->primary->debugfs_root;
@@ -1685,6 +1786,10 @@ int amdgpu_debugfs_init(struct amdgpu_device *adev)
&amdgpu_debugfs_test_ib_fops);
debugfs_create_file("amdgpu_vm_info", 0444, root, adev,
&amdgpu_debugfs_vm_info_fops);
+ debugfs_create_file("amdgpu_benchmark", 0200, root, adev,
+ &amdgpu_benchmark_fops);
+ debugfs_create_file("amdgpu_reset_dump_register_list", 0644, root, adev,
+ &amdgpu_reset_dump_register_list);
adev->debugfs_vbios_blob.data = adev->bios;
adev->debugfs_vbios_blob.size = adev->bios_size;