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| author | Jesse.zhang@amd.com <Jesse.zhang@amd.com> | 2024-11-05 15:22:56 +0800 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2024-11-08 11:08:01 -0500 |
| commit | 6c8d1f4b042e706ccd7575beb0397a75d545d71b (patch) | |
| tree | cab0149c597e5d4ae2d22c5e82aebab72c387ac9 /drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.c | |
| parent | f4a3246a2c7a595161f1ba11db53639b7f580104 (diff) | |
| download | lwn-6c8d1f4b042e706ccd7575beb0397a75d545d71b.tar.gz lwn-6c8d1f4b042e706ccd7575beb0397a75d545d71b.zip | |
drm/amdgpu: Add sysfs interface for gc reset mask
Add two sysfs interfaces for gfx and compute:
gfx_reset_mask
compute_reset_mask
These interfaces are read-only and show the resets supported by the IP.
For example, full adapter reset (mode1/mode2/BACO/etc),
soft reset, queue reset, and pipe reset.
V2: the sysfs node returns a text string instead of some flags (Christian)
v3: add a generic helper which takes the ring as parameter
and print the strings in the order they are applied (Christian)
check amdgpu_gpu_recovery before creating sysfs file itself,
and initialize supported_reset_types in IP version files (Lijo)
v4: Fixing uninitialized variables (Tim)
Signed-off-by: Jesse Zhang <Jesse.Zhang@amd.com>
Suggested-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Tim Huang <tim.huang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.c | 70 |
1 files changed, 70 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.c index 2f3f09dfb1fd..6cc6484bde06 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.c @@ -1588,6 +1588,32 @@ static ssize_t amdgpu_gfx_set_enforce_isolation(struct device *dev, return count; } +static ssize_t amdgpu_gfx_get_gfx_reset_mask(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + struct drm_device *ddev = dev_get_drvdata(dev); + struct amdgpu_device *adev = drm_to_adev(ddev); + + if (!adev) + return -ENODEV; + + return amdgpu_show_reset_mask(buf, adev->gfx.gfx_supported_reset); +} + +static ssize_t amdgpu_gfx_get_compute_reset_mask(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + struct drm_device *ddev = dev_get_drvdata(dev); + struct amdgpu_device *adev = drm_to_adev(ddev); + + if (!adev) + return -ENODEV; + + return amdgpu_show_reset_mask(buf, adev->gfx.compute_supported_reset); +} + static DEVICE_ATTR(run_cleaner_shader, 0200, NULL, amdgpu_gfx_set_run_cleaner_shader); @@ -1601,6 +1627,11 @@ static DEVICE_ATTR(current_compute_partition, 0644, static DEVICE_ATTR(available_compute_partition, 0444, amdgpu_gfx_get_available_compute_partition, NULL); +static DEVICE_ATTR(gfx_reset_mask, 0444, + amdgpu_gfx_get_gfx_reset_mask, NULL); + +static DEVICE_ATTR(compute_reset_mask, 0444, + amdgpu_gfx_get_compute_reset_mask, NULL); static int amdgpu_gfx_sysfs_xcp_init(struct amdgpu_device *adev) { @@ -1666,6 +1697,40 @@ static void amdgpu_gfx_sysfs_isolation_shader_fini(struct amdgpu_device *adev) device_remove_file(adev->dev, &dev_attr_run_cleaner_shader); } +static int amdgpu_gfx_sysfs_reset_mask_init(struct amdgpu_device *adev) +{ + int r = 0; + + if (!amdgpu_gpu_recovery) + return r; + + if (adev->gfx.num_gfx_rings) { + r = device_create_file(adev->dev, &dev_attr_gfx_reset_mask); + if (r) + return r; + } + + if (adev->gfx.num_compute_rings) { + r = device_create_file(adev->dev, &dev_attr_compute_reset_mask); + if (r) + return r; + } + + return r; +} + +static void amdgpu_gfx_sysfs_reset_mask_fini(struct amdgpu_device *adev) +{ + if (!amdgpu_gpu_recovery) + return; + + if (adev->gfx.num_gfx_rings) + device_remove_file(adev->dev, &dev_attr_gfx_reset_mask); + + if (adev->gfx.num_compute_rings) + device_remove_file(adev->dev, &dev_attr_compute_reset_mask); +} + int amdgpu_gfx_sysfs_init(struct amdgpu_device *adev) { int r; @@ -1680,6 +1745,10 @@ int amdgpu_gfx_sysfs_init(struct amdgpu_device *adev) if (r) dev_err(adev->dev, "failed to create isolation sysfs files"); + r = amdgpu_gfx_sysfs_reset_mask_init(adev); + if (r) + dev_err(adev->dev, "failed to create reset mask sysfs files"); + return r; } @@ -1687,6 +1756,7 @@ void amdgpu_gfx_sysfs_fini(struct amdgpu_device *adev) { amdgpu_gfx_sysfs_xcp_fini(adev); amdgpu_gfx_sysfs_isolation_shader_fini(adev); + amdgpu_gfx_sysfs_reset_mask_fini(adev); } int amdgpu_gfx_cleaner_shader_sw_init(struct amdgpu_device *adev, |