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authorDave Airlie <airlied@redhat.com>2021-08-27 10:24:07 +1000
committerDave Airlie <airlied@redhat.com>2021-08-27 10:24:07 +1000
commit589744dbdd760f34e1de6c5d907598df1d17c8d4 (patch)
treeb00a8e16e9ba93f5e6c97f124ba38b3ccb9d1dee
parent4f33239615da9446311806bd79b4d5ba78524163 (diff)
parentc41a4e877a185241d8e83501453326fb98f67354 (diff)
Merge tag 'amd-drm-fixes-5.14-2021-08-25' of https://gitlab.freedesktop.org/agd5f/linux into drm-fixes
amd-drm-fixes-5.14-2021-08-25: amdgpu: - Fix for pinning display buffers multiple times - Fix delayed work handling for GFXOFF - Fix build when CONFIG_SUSPEND is not set Signed-off-by: Dave Airlie <airlied@redhat.com> From: Alex Deucher <alexander.deucher@amd.com> Link: https://patchwork.freedesktop.org/patch/msgid/20210826032658.4068-1-alexander.deucher@amd.com
-rw-r--r--drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c2
-rw-r--r--drivers/gpu/drm/amd/amdgpu/amdgpu_device.c11
-rw-r--r--drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.c36
-rw-r--r--drivers/gpu/drm/amd/amdgpu/amdgpu_object.c10
4 files changed, 36 insertions, 23 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c
index 4137e848f6a2..a9ce3b20d371 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c
@@ -1040,7 +1040,7 @@ void amdgpu_acpi_detect(void)
*/
bool amdgpu_acpi_is_s0ix_supported(struct amdgpu_device *adev)
{
-#if IS_ENABLED(CONFIG_AMD_PMC) && IS_ENABLED(CONFIG_PM_SLEEP)
+#if IS_ENABLED(CONFIG_AMD_PMC) && IS_ENABLED(CONFIG_SUSPEND)
if (acpi_gbl_FADT.flags & ACPI_FADT_LOW_POWER_S0) {
if (adev->flags & AMD_IS_APU)
return pm_suspend_target_state == PM_SUSPEND_TO_IDLE;
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
index f3fd5ec710b6..f944ed858f3e 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
@@ -2777,12 +2777,11 @@ static void amdgpu_device_delay_enable_gfx_off(struct work_struct *work)
struct amdgpu_device *adev =
container_of(work, struct amdgpu_device, gfx.gfx_off_delay_work.work);
- mutex_lock(&adev->gfx.gfx_off_mutex);
- if (!adev->gfx.gfx_off_state && !adev->gfx.gfx_off_req_count) {
- if (!amdgpu_dpm_set_powergating_by_smu(adev, AMD_IP_BLOCK_TYPE_GFX, true))
- adev->gfx.gfx_off_state = true;
- }
- mutex_unlock(&adev->gfx.gfx_off_mutex);
+ WARN_ON_ONCE(adev->gfx.gfx_off_state);
+ WARN_ON_ONCE(adev->gfx.gfx_off_req_count);
+
+ if (!amdgpu_dpm_set_powergating_by_smu(adev, AMD_IP_BLOCK_TYPE_GFX, true))
+ adev->gfx.gfx_off_state = true;
}
/**
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.c
index a0be0772c8b3..b4ced45301be 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.c
@@ -563,24 +563,38 @@ void amdgpu_gfx_off_ctrl(struct amdgpu_device *adev, bool enable)
mutex_lock(&adev->gfx.gfx_off_mutex);
- if (!enable)
- adev->gfx.gfx_off_req_count++;
- else if (adev->gfx.gfx_off_req_count > 0)
+ if (enable) {
+ /* If the count is already 0, it means there's an imbalance bug somewhere.
+ * Note that the bug may be in a different caller than the one which triggers the
+ * WARN_ON_ONCE.
+ */
+ if (WARN_ON_ONCE(adev->gfx.gfx_off_req_count == 0))
+ goto unlock;
+
adev->gfx.gfx_off_req_count--;
- if (enable && !adev->gfx.gfx_off_state && !adev->gfx.gfx_off_req_count) {
- schedule_delayed_work(&adev->gfx.gfx_off_delay_work, GFX_OFF_DELAY_ENABLE);
- } else if (!enable && adev->gfx.gfx_off_state) {
- if (!amdgpu_dpm_set_powergating_by_smu(adev, AMD_IP_BLOCK_TYPE_GFX, false)) {
- adev->gfx.gfx_off_state = false;
+ if (adev->gfx.gfx_off_req_count == 0 && !adev->gfx.gfx_off_state)
+ schedule_delayed_work(&adev->gfx.gfx_off_delay_work, GFX_OFF_DELAY_ENABLE);
+ } else {
+ if (adev->gfx.gfx_off_req_count == 0) {
+ cancel_delayed_work_sync(&adev->gfx.gfx_off_delay_work);
+
+ if (adev->gfx.gfx_off_state &&
+ !amdgpu_dpm_set_powergating_by_smu(adev, AMD_IP_BLOCK_TYPE_GFX, false)) {
+ adev->gfx.gfx_off_state = false;
- if (adev->gfx.funcs->init_spm_golden) {
- dev_dbg(adev->dev, "GFXOFF is disabled, re-init SPM golden settings\n");
- amdgpu_gfx_init_spm_golden(adev);
+ if (adev->gfx.funcs->init_spm_golden) {
+ dev_dbg(adev->dev,
+ "GFXOFF is disabled, re-init SPM golden settings\n");
+ amdgpu_gfx_init_spm_golden(adev);
+ }
}
}
+
+ adev->gfx.gfx_off_req_count++;
}
+unlock:
mutex_unlock(&adev->gfx.gfx_off_mutex);
}
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
index 795fa7445abe..92c8e6e7f346 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
@@ -920,11 +920,6 @@ int amdgpu_bo_pin_restricted(struct amdgpu_bo *bo, u32 domain,
return -EINVAL;
}
- /* This assumes only APU display buffers are pinned with (VRAM|GTT).
- * See function amdgpu_display_supported_domains()
- */
- domain = amdgpu_bo_get_preferred_pin_domain(adev, domain);
-
if (bo->tbo.pin_count) {
uint32_t mem_type = bo->tbo.resource->mem_type;
uint32_t mem_flags = bo->tbo.resource->placement;
@@ -949,6 +944,11 @@ int amdgpu_bo_pin_restricted(struct amdgpu_bo *bo, u32 domain,
return 0;
}
+ /* This assumes only APU display buffers are pinned with (VRAM|GTT).
+ * See function amdgpu_display_supported_domains()
+ */
+ domain = amdgpu_bo_get_preferred_pin_domain(adev, domain);
+
if (bo->tbo.base.import_attach)
dma_buf_pin(bo->tbo.base.import_attach);

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