diff options
| author | Mario Limonciello <mario.limonciello@amd.com> | 2024-02-08 08:52:55 +0300 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2024-02-13 16:59:49 +0300 |
| commit | 226db36032c61d8717dfdd052adac351b22d3e83 (patch) | |
| tree | 1c2563ec9ac213f58f356aa8e4d5ef1be408521a /drivers/gpu/drm/amd | |
| parent | ddc23e6e230e9ba50fda44fe680907c6ce4cd1df (diff) | |
| download | linux-226db36032c61d8717dfdd052adac351b22d3e83.tar.xz | |
drm/amd: Stop evicting resources on APUs in suspend
commit 5095d5418193 ("drm/amd: Evict resources during PM ops prepare()
callback") intentionally moved the eviction of resources to earlier in
the suspend process, but this introduced a subtle change that it occurs
before adev->in_s0ix or adev->in_s3 are set. This meant that APUs
actually started to evict resources at suspend time as well.
Explicitly set s0ix or s3 in the prepare() stage, and unset them if the
prepare() stage failed.
v2: squash in warning fix from Stephen Rothwell
Reported-by: Jürg Billeter <j@bitron.ch>
Closes: https://gitlab.freedesktop.org/drm/amd/-/issues/3132#note_2271038
Fixes: 5095d5418193 ("drm/amd: Evict resources during PM ops prepare() callback")
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu.h | 2 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c | 15 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 11 |
3 files changed, 26 insertions, 2 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu.h b/drivers/gpu/drm/amd/amdgpu/amdgpu.h index f5c8187e0d58..2cf4fb3f7751 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu.h @@ -1552,9 +1552,11 @@ static inline int amdgpu_acpi_smart_shift_update(struct drm_device *dev, #if defined(CONFIG_ACPI) && defined(CONFIG_SUSPEND) bool amdgpu_acpi_is_s3_active(struct amdgpu_device *adev); bool amdgpu_acpi_is_s0ix_active(struct amdgpu_device *adev); +void amdgpu_choose_low_power_state(struct amdgpu_device *adev); #else static inline bool amdgpu_acpi_is_s0ix_active(struct amdgpu_device *adev) { return false; } static inline bool amdgpu_acpi_is_s3_active(struct amdgpu_device *adev) { return false; } +static inline void amdgpu_choose_low_power_state(struct amdgpu_device *adev) { } #endif #if defined(CONFIG_DRM_AMD_DC) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c index 2deebece810e..cc21ed67a330 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c @@ -1519,4 +1519,19 @@ bool amdgpu_acpi_is_s0ix_active(struct amdgpu_device *adev) #endif /* CONFIG_AMD_PMC */ } +/** + * amdgpu_choose_low_power_state + * + * @adev: amdgpu_device_pointer + * + * Choose the target low power state for the GPU + */ +void amdgpu_choose_low_power_state(struct amdgpu_device *adev) +{ + if (amdgpu_acpi_is_s0ix_active(adev)) + adev->in_s0ix = true; + else if (amdgpu_acpi_is_s3_active(adev)) + adev->in_s3 = true; +} + #endif /* CONFIG_SUSPEND */ diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c index d534e192e260..41deb867c945 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c @@ -4529,13 +4529,15 @@ int amdgpu_device_prepare(struct drm_device *dev) struct amdgpu_device *adev = drm_to_adev(dev); int i, r; + amdgpu_choose_low_power_state(adev); + if (dev->switch_power_state == DRM_SWITCH_POWER_OFF) return 0; /* Evict the majority of BOs before starting suspend sequence */ r = amdgpu_device_evict_resources(adev); if (r) - return r; + goto unprepare; for (i = 0; i < adev->num_ip_blocks; i++) { if (!adev->ip_blocks[i].status.valid) @@ -4544,10 +4546,15 @@ int amdgpu_device_prepare(struct drm_device *dev) continue; r = adev->ip_blocks[i].version->funcs->prepare_suspend((void *)adev); if (r) - return r; + goto unprepare; } return 0; + +unprepare: + adev->in_s0ix = adev->in_s3 = false; + + return r; } /** |