From 2ef2b99c9cdca423d27dc3d2f32727e6a374ef23 Mon Sep 17 00:00:00 2001 From: jsg Date: Mon, 4 Mar 2024 02:08:07 +0000 Subject: [PATCH] drm/amdgpu: skip to program GFXDEC registers for suspend abort From Prike Liang 7a3a0b0c7f4720cbac79d991ebb3ab1cd2cd065a in linux-6.6.y/6.6.19 93bafa32a6918154aa0caf9f66679a32c2431357 in mainline linux --- sys/dev/pci/drm/amd/amdgpu/amdgpu.h | 2 ++ sys/dev/pci/drm/amd/amdgpu/amdgpu_drv.c | 2 ++ sys/dev/pci/drm/amd/amdgpu/gfx_v9_0.c | 8 ++++++++ 3 files changed, 12 insertions(+) diff --git a/sys/dev/pci/drm/amd/amdgpu/amdgpu.h b/sys/dev/pci/drm/amd/amdgpu/amdgpu.h index 1cb952ec6ef..afac024456e 100644 --- a/sys/dev/pci/drm/amd/amdgpu/amdgpu.h +++ b/sys/dev/pci/drm/amd/amdgpu/amdgpu.h @@ -1040,6 +1040,8 @@ struct amdgpu_device { bool in_s3; bool in_s4; bool in_s0ix; + /* indicate amdgpu suspension status */ + bool suspend_complete; enum pp_mp1_state mp1_state; struct amdgpu_doorbell_index doorbell_index; diff --git a/sys/dev/pci/drm/amd/amdgpu/amdgpu_drv.c b/sys/dev/pci/drm/amd/amdgpu/amdgpu_drv.c index 648408ea841..6f3e190c9a5 100644 --- a/sys/dev/pci/drm/amd/amdgpu/amdgpu_drv.c +++ b/sys/dev/pci/drm/amd/amdgpu/amdgpu_drv.c @@ -2416,6 +2416,7 @@ static int amdgpu_pmops_suspend(struct device *dev) struct drm_device *drm_dev = dev_get_drvdata(dev); struct amdgpu_device *adev = drm_to_adev(drm_dev); + adev->suspend_complete = false; if (amdgpu_acpi_is_s0ix_active(adev)) adev->in_s0ix = true; else if (amdgpu_acpi_is_s3_active(adev)) @@ -2430,6 +2431,7 @@ static int amdgpu_pmops_suspend_noirq(struct device *dev) struct drm_device *drm_dev = dev_get_drvdata(dev); struct amdgpu_device *adev = drm_to_adev(drm_dev); + adev->suspend_complete = true; if (amdgpu_acpi_should_gpu_reset(adev)) return amdgpu_asic_reset(adev); diff --git a/sys/dev/pci/drm/amd/amdgpu/gfx_v9_0.c b/sys/dev/pci/drm/amd/amdgpu/gfx_v9_0.c index ac1eb7d944d..3878529d5cf 100644 --- a/sys/dev/pci/drm/amd/amdgpu/gfx_v9_0.c +++ b/sys/dev/pci/drm/amd/amdgpu/gfx_v9_0.c @@ -3033,6 +3033,14 @@ static int gfx_v9_0_cp_gfx_start(struct amdgpu_device *adev) gfx_v9_0_cp_gfx_enable(adev, true); + /* Now only limit the quirk on the APU gfx9 series and already + * confirmed that the APU gfx10/gfx11 needn't such update. + */ + if (adev->flags & AMD_IS_APU && + adev->in_s3 && !adev->suspend_complete) { + DRM_INFO(" Will skip the CSB packet resubmit\n"); + return 0; + } r = amdgpu_ring_alloc(ring, gfx_v9_0_get_csb_size(adev) + 4 + 3); if (r) { DRM_ERROR("amdgpu: cp failed to lock ring (%d).\n", r); -- 2.20.1