Am 02.12.24 um 17:52 schrieb Alex Deucher:
Split resume into a 3rd step to handle displays when DCC is
enabled on DCN 4.0.1. Move display after the buffer funcs
have been re-enabled so that the GPU will do the move and
properly set the DCC metadata for DCN.
v2: fix fence irq resume ordering
Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx>
Reviewed-by: Christian König <christian.koenig@xxxxxxx>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 45 +++++++++++++++++++++-
1 file changed, 43 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
index 2a25e0742f8e7..d882d46de1416 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
@@ -3764,7 +3764,7 @@ static int amdgpu_device_ip_resume_phase1(struct amdgpu_device *adev)
*
* @adev: amdgpu_device pointer
*
- * First resume function for hardware IPs. The list of all the hardware
+ * Second resume function for hardware IPs. The list of all the hardware
* IPs that make up the asic is walked and the resume callbacks are run for
* all blocks except COMMON, GMC, and IH. resume puts the hardware into a
* functional state after a suspend and updates the software state as
@@ -3782,6 +3782,7 @@ static int amdgpu_device_ip_resume_phase2(struct amdgpu_device *adev)
if (adev->ip_blocks[i].version->type == AMD_IP_BLOCK_TYPE_COMMON ||
adev->ip_blocks[i].version->type == AMD_IP_BLOCK_TYPE_GMC ||
adev->ip_blocks[i].version->type == AMD_IP_BLOCK_TYPE_IH ||
+ adev->ip_blocks[i].version->type == AMD_IP_BLOCK_TYPE_DCE ||
adev->ip_blocks[i].version->type == AMD_IP_BLOCK_TYPE_PSP)
continue;
r = amdgpu_ip_block_resume(&adev->ip_blocks[i]);
@@ -3792,6 +3793,36 @@ static int amdgpu_device_ip_resume_phase2(struct amdgpu_device *adev)
return 0;
}
+/**
+ * amdgpu_device_ip_resume_phase3 - run resume for hardware IPs
+ *
+ * @adev: amdgpu_device pointer
+ *
+ * Third resume function for hardware IPs. The list of all the hardware
+ * IPs that make up the asic is walked and the resume callbacks are run for
+ * all DCE. resume puts the hardware into a functional state after a suspend
+ * and updates the software state as necessary. This function is also used
+ * for restoring the GPU after a GPU reset.
+ *
+ * Returns 0 on success, negative error code on failure.
+ */
+static int amdgpu_device_ip_resume_phase3(struct amdgpu_device *adev)
+{
+ int i, r;
+
+ for (i = 0; i < adev->num_ip_blocks; i++) {
+ if (!adev->ip_blocks[i].status.valid || adev->ip_blocks[i].status.hw)
+ continue;
+ if (adev->ip_blocks[i].version->type == AMD_IP_BLOCK_TYPE_DCE) {
+ r = amdgpu_ip_block_resume(&adev->ip_blocks[i]);
+ if (r)
+ return r;
+ }
+ }
+
+ return 0;
+}
+
/**
* amdgpu_device_ip_resume - run resume for hardware IPs
*
@@ -3821,6 +3852,13 @@ static int amdgpu_device_ip_resume(struct amdgpu_device *adev)
if (adev->mman.buffer_funcs_ring->sched.ready)
amdgpu_ttm_set_buffer_funcs_status(adev, true);
+ if (r)
+ return r;
+
+ amdgpu_fence_driver_hw_init(adev);
+
+ r = amdgpu_device_ip_resume_phase3(adev);
+
return r;
}
@@ -4909,7 +4947,6 @@ int amdgpu_device_resume(struct drm_device *dev, bool fbcon)
dev_err(adev->dev, "amdgpu_device_ip_resume failed (%d).\n", r);
goto exit;
}
- amdgpu_fence_driver_hw_init(adev);
if (!adev->in_s0ix) {
r = amdgpu_amdkfd_resume(adev, adev->in_runpm);
@@ -5489,6 +5526,10 @@ int amdgpu_device_reinit_after_reset(struct amdgpu_reset_context *reset_context)
if (tmp_adev->mman.buffer_funcs_ring->sched.ready)
amdgpu_ttm_set_buffer_funcs_status(tmp_adev, true);
+ r = amdgpu_device_ip_resume_phase3(tmp_adev);
+ if (r)
+ goto out;
+
if (vram_lost)
amdgpu_device_fill_reset_magic(tmp_adev);
