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drm/amdgpu: rework resume handling for display (v2)

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

Alex Deucher committed 1 year ago

Commit 73dae651 parent 1443dd31 file · +43 −2Browse files

Unified · Split

drivers/gpu/drm/amd/amdgpu/amdgpu_device.c+43−2
@@ -3762,7 +3762,7 @@ static int amdgpu_device_ip_resume_phase1(struct amdgpu_device *adev) · 3761 unmodified lines
37623762 *
37633763 * @adev: amdgpu_device pointer
37643764 *
3765− * First resume function for hardware IPs. The list of all the hardware
3765+ * Second resume function for hardware IPs. The list of all the hardware
37663766 * IPs that make up the asic is walked and the resume callbacks are run for
37673767 * all blocks except COMMON, GMC, and IH. resume puts the hardware into a
37683768 * functional state after a suspend and updates the software state as
@@ -3780,6 +3780,7 @@ static int amdgpu_device_ip_resume_phase2(struct amdgpu_device *adev) · 11 unmodified lines
37803780 if (adev->ip_blocks[i].version->type == AMD_IP_BLOCK_TYPE_COMMON ||
37813781 adev->ip_blocks[i].version->type == AMD_IP_BLOCK_TYPE_GMC ||
37823782 adev->ip_blocks[i].version->type == AMD_IP_BLOCK_TYPE_IH ||
3783+ adev->ip_blocks[i].version->type == AMD_IP_BLOCK_TYPE_DCE ||
37833784 adev->ip_blocks[i].version->type == AMD_IP_BLOCK_TYPE_PSP)
37843785 continue;
37853786 r = amdgpu_ip_block_resume(&adev->ip_blocks[i]);
@@ -3790,6 +3791,36 @@ static int amdgpu_device_ip_resume_phase2(struct amdgpu_device *adev) · 4 unmodified lines
37903791 return 0;
37913792 }
37923793
3794+/**
3795+ * amdgpu_device_ip_resume_phase3 - run resume for hardware IPs
3796+ *
3797+ * @adev: amdgpu_device pointer
3798+ *
3799+ * Third resume function for hardware IPs. The list of all the hardware
3800+ * IPs that make up the asic is walked and the resume callbacks are run for
3801+ * all DCE. resume puts the hardware into a functional state after a suspend
3802+ * and updates the software state as necessary. This function is also used
3803+ * for restoring the GPU after a GPU reset.
3804+ *
3805+ * Returns 0 on success, negative error code on failure.
3806+ */
3807+static int amdgpu_device_ip_resume_phase3(struct amdgpu_device *adev)
3808+{
3809+ int i, r;
3810+
3811+ for (i = 0; i < adev->num_ip_blocks; i++) {
3812+ if (!adev->ip_blocks[i].status.valid || adev->ip_blocks[i].status.hw)
3813+ continue;
3814+ if (adev->ip_blocks[i].version->type == AMD_IP_BLOCK_TYPE_DCE) {
3815+ r = amdgpu_ip_block_resume(&adev->ip_blocks[i]);
3816+ if (r)
3817+ return r;
3818+ }
3819+ }
3820+
3821+ return 0;
3822+}
3823+
37933824 /**
37943825 * amdgpu_device_ip_resume - run resume for hardware IPs
37953826 *
@@ -3819,6 +3850,13 @@ static int amdgpu_device_ip_resume(struct amdgpu_device *adev) · 23 unmodified lines
38193850 if (adev->mman.buffer_funcs_ring->sched.ready)
38203851 amdgpu_ttm_set_buffer_funcs_status(adev, true);
38213852
3853+ if (r)
3854+ return r;
3855+
3856+ amdgpu_fence_driver_hw_init(adev);
3857+
3858+ r = amdgpu_device_ip_resume_phase3(adev);
3859+
38223860 return r;
38233861 }
38243862
@@ -4899,7 +4937,6 @@ int amdgpu_device_resume(struct drm_device *dev, bool notify_clients) · 1074 unmodified lines
48994937 dev_err(adev->dev, "amdgpu_device_ip_resume failed (%d).\n", r);
49004938 goto exit;
49014939 }
4902− amdgpu_fence_driver_hw_init(adev);
49034940
49044941 if (!adev->in_s0ix) {
49054942 r = amdgpu_amdkfd_resume(adev, adev->in_runpm);
@@ -5484,6 +5521,10 @@ int amdgpu_device_reinit_after_reset(struct amdgpu_reset_context *reset_context) · 578 unmodified lines
54845521 if (tmp_adev->mman.buffer_funcs_ring->sched.ready)
54855522 amdgpu_ttm_set_buffer_funcs_status(tmp_adev, true);
54865523
5524+ r = amdgpu_device_ip_resume_phase3(tmp_adev);
5525+ if (r)
5526+ goto out;
5527+
54875528 if (vram_lost)
54885529 amdgpu_device_fill_reset_magic(tmp_adev);
54895530

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