diff options
| author | Alex Deucher <alexander.deucher@amd.com> | 2022-11-08 23:47:56 +0300 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2022-12-20 20:46:46 +0300 |
| commit | d5d29009b88f9b0e56e3d8b0bbebc443d41f89ef (patch) | |
| tree | e9a7ceb184ddbbb20fd710655c23ec1806dc3496 /drivers/gpu/drm/amd/amdgpu/gmc_v10_0.c | |
| parent | b93df61dda09ed93e6f2834b4fe6440917f95468 (diff) | |
| download | linux-d5d29009b88f9b0e56e3d8b0bbebc443d41f89ef.tar.xz | |
drm/amdgpu/gmc10: don't touch gfxhub registers during S0ix
gfxhub registers are part of gfx IP and should not need to be
changed. Doing so without disabling gfxoff can hang the gfx IP.
v2: add comments explaining why we can skip the interrupt
control for S0i3
Reviewed-by: Mario Limonciello <mario.limonciello@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/gmc_v10_0.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/gmc_v10_0.c | 36 |
1 files changed, 27 insertions, 9 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v10_0.c b/drivers/gpu/drm/amd/amdgpu/gmc_v10_0.c index 21e46817d82d..808488831dea 100644 --- a/drivers/gpu/drm/amd/amdgpu/gmc_v10_0.c +++ b/drivers/gpu/drm/amd/amdgpu/gmc_v10_0.c @@ -78,13 +78,25 @@ gmc_v10_0_vm_fault_interrupt_state(struct amdgpu_device *adev, /* MM HUB */ amdgpu_gmc_set_vm_fault_masks(adev, AMDGPU_MMHUB_0, false); /* GFX HUB */ - amdgpu_gmc_set_vm_fault_masks(adev, AMDGPU_GFXHUB_0, false); + /* This works because this interrupt is only + * enabled at init/resume and disabled in + * fini/suspend, so the overall state doesn't + * change over the course of suspend/resume. + */ + if (!adev->in_s0ix) + amdgpu_gmc_set_vm_fault_masks(adev, AMDGPU_GFXHUB_0, false); break; case AMDGPU_IRQ_STATE_ENABLE: /* MM HUB */ amdgpu_gmc_set_vm_fault_masks(adev, AMDGPU_MMHUB_0, true); /* GFX HUB */ - amdgpu_gmc_set_vm_fault_masks(adev, AMDGPU_GFXHUB_0, true); + /* This works because this interrupt is only + * enabled at init/resume and disabled in + * fini/suspend, so the overall state doesn't + * change over the course of suspend/resume. + */ + if (!adev->in_s0ix) + amdgpu_gmc_set_vm_fault_masks(adev, AMDGPU_GFXHUB_0, true); break; default: break; @@ -1061,9 +1073,12 @@ static int gmc_v10_0_gart_enable(struct amdgpu_device *adev) } amdgpu_gtt_mgr_recover(&adev->mman.gtt_mgr); - r = adev->gfxhub.funcs->gart_enable(adev); - if (r) - return r; + + if (!adev->in_s0ix) { + r = adev->gfxhub.funcs->gart_enable(adev); + if (r) + return r; + } r = adev->mmhub.funcs->gart_enable(adev); if (r) @@ -1077,10 +1092,12 @@ static int gmc_v10_0_gart_enable(struct amdgpu_device *adev) value = (amdgpu_vm_fault_stop == AMDGPU_VM_FAULT_STOP_ALWAYS) ? false : true; - adev->gfxhub.funcs->set_fault_enable_default(adev, value); + if (!adev->in_s0ix) + adev->gfxhub.funcs->set_fault_enable_default(adev, value); adev->mmhub.funcs->set_fault_enable_default(adev, value); gmc_v10_0_flush_gpu_tlb(adev, 0, AMDGPU_MMHUB_0, 0); - gmc_v10_0_flush_gpu_tlb(adev, 0, AMDGPU_GFXHUB_0, 0); + if (!adev->in_s0ix) + gmc_v10_0_flush_gpu_tlb(adev, 0, AMDGPU_GFXHUB_0, 0); DRM_INFO("PCIE GART of %uM enabled (table at 0x%016llX).\n", (unsigned)(adev->gmc.gart_size >> 20), @@ -1101,7 +1118,7 @@ static int gmc_v10_0_hw_init(void *handle) * harvestable groups in gc_utcl2 need to be programmed before any GFX block * register setup within GMC, or else system hang when harvesting SA. */ - if (adev->gfxhub.funcs && adev->gfxhub.funcs->utcl2_harvest) + if (!adev->in_s0ix && adev->gfxhub.funcs && adev->gfxhub.funcs->utcl2_harvest) adev->gfxhub.funcs->utcl2_harvest(adev); r = gmc_v10_0_gart_enable(adev); @@ -1129,7 +1146,8 @@ static int gmc_v10_0_hw_init(void *handle) */ static void gmc_v10_0_gart_disable(struct amdgpu_device *adev) { - adev->gfxhub.funcs->gart_disable(adev); + if (!adev->in_s0ix) + adev->gfxhub.funcs->gart_disable(adev); adev->mmhub.funcs->gart_disable(adev); } |