Commit 7c85e970 authored by Likun Gao's avatar Likun Gao Committed by Alex Deucher
Browse files

drm/amdgpu: support for DCC feature 



Deal with AMDGPU_GEM_CREATE_GFX12_DCC to set DCC bit
when needed.

Signed-off-by: default avatarLikun Gao <Likun.Gao@amd.com>
Reviewed-by: default avatarHawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent 6b83b94a

drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c

+6 −0
Original line number Diff line number Diff line
@@ -334,6 +334,7 @@ int amdgpu_gem_create_ioctl(struct drm_device *dev, void *data, 
		      AMDGPU_GEM_CREATE_VM_ALWAYS_VALID |

		      AMDGPU_GEM_CREATE_EXPLICIT_SYNC |

		      AMDGPU_GEM_CREATE_ENCRYPTED |

		      AMDGPU_GEM_CREATE_GFX12_DCC |

		      AMDGPU_GEM_CREATE_DISCARDABLE))

		return -EINVAL;
@@ -341,6 +342,11 @@ int amdgpu_gem_create_ioctl(struct drm_device *dev, void *data, 
	if (args->in.domains & ~AMDGPU_GEM_DOMAIN_MASK)

		return -EINVAL;



	if ((flags & AMDGPU_GEM_CREATE_GFX12_DCC) &&

	    ((amdgpu_ip_version(adev, GC_HWIP, 0) < IP_VERSION(12, 0, 0)) ||

	     !(args->in.domains & AMDGPU_GEM_DOMAIN_VRAM)))

		return -EINVAL;



	if (!amdgpu_is_tmz(adev) && (flags & AMDGPU_GEM_CREATE_ENCRYPTED)) {

		DRM_NOTE_ONCE("Cannot allocate secure buffer since TMZ is disabled\n");

		return -EINVAL;

drivers/gpu/drm/amd/amdgpu/gmc_v12_0.c

+3 −0
Original line number Diff line number Diff line
@@ -532,6 +532,9 @@ static void gmc_v12_0_get_vm_pte(struct amdgpu_device *adev, 
	is_system = (bo->tbo.resource->mem_type == TTM_PL_TT) ||

		(bo->tbo.resource->mem_type == AMDGPU_PL_PREEMPT);



	if (bo && bo->flags & AMDGPU_GEM_CREATE_GFX12_DCC)

		*flags |= AMDGPU_PTE_DCC;



	/* WA for HW bug */

	if (is_system || ((bo_adev != adev) && coherent))

		*flags = AMDGPU_PTE_MTYPE_GFX12(*flags, MTYPE_NC);