From: changzhu Changfeng.Zhu@amd.com
commit 6c2c8972374ac5c35078d36d7559f64c368f7b33 upstream.
SW must acquire/release one of the vm_invalidate_eng*_sem around the invalidation req/ack. Through this way,it can avoid losing invalidate acknowledge state across power-gating off cycle. To use vm_invalidate_eng*_sem, it needs to initialize vm_invalidate_eng*_sem firstly.
Signed-off-by: changzhu Changfeng.Zhu@amd.com Reviewed-by: Christian König christian.koenig@amd.com Signed-off-by: Alex Deucher alexander.deucher@amd.com Cc: stable@vger.kernel.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org
--- drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.h | 1 + drivers/gpu/drm/amd/amdgpu/gfxhub_v1_0.c | 2 ++ drivers/gpu/drm/amd/amdgpu/gfxhub_v2_0.c | 2 ++ drivers/gpu/drm/amd/amdgpu/mmhub_v1_0.c | 2 ++ drivers/gpu/drm/amd/amdgpu/mmhub_v2_0.c | 2 ++ drivers/gpu/drm/amd/amdgpu/mmhub_v9_4.c | 4 ++++ 6 files changed, 13 insertions(+)
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.h @@ -77,6 +77,7 @@ struct amdgpu_gmc_fault { struct amdgpu_vmhub { uint32_t ctx0_ptb_addr_lo32; uint32_t ctx0_ptb_addr_hi32; + uint32_t vm_inv_eng0_sem; uint32_t vm_inv_eng0_req; uint32_t vm_inv_eng0_ack; uint32_t vm_context0_cntl; --- a/drivers/gpu/drm/amd/amdgpu/gfxhub_v1_0.c +++ b/drivers/gpu/drm/amd/amdgpu/gfxhub_v1_0.c @@ -365,6 +365,8 @@ void gfxhub_v1_0_init(struct amdgpu_devi hub->ctx0_ptb_addr_hi32 = SOC15_REG_OFFSET(GC, 0, mmVM_CONTEXT0_PAGE_TABLE_BASE_ADDR_HI32); + hub->vm_inv_eng0_sem = + SOC15_REG_OFFSET(GC, 0, mmVM_INVALIDATE_ENG0_SEM); hub->vm_inv_eng0_req = SOC15_REG_OFFSET(GC, 0, mmVM_INVALIDATE_ENG0_REQ); hub->vm_inv_eng0_ack = --- a/drivers/gpu/drm/amd/amdgpu/gfxhub_v2_0.c +++ b/drivers/gpu/drm/amd/amdgpu/gfxhub_v2_0.c @@ -350,6 +350,8 @@ void gfxhub_v2_0_init(struct amdgpu_devi hub->ctx0_ptb_addr_hi32 = SOC15_REG_OFFSET(GC, 0, mmGCVM_CONTEXT0_PAGE_TABLE_BASE_ADDR_HI32); + hub->vm_inv_eng0_sem = + SOC15_REG_OFFSET(GC, 0, mmGCVM_INVALIDATE_ENG0_SEM); hub->vm_inv_eng0_req = SOC15_REG_OFFSET(GC, 0, mmGCVM_INVALIDATE_ENG0_REQ); hub->vm_inv_eng0_ack = --- a/drivers/gpu/drm/amd/amdgpu/mmhub_v1_0.c +++ b/drivers/gpu/drm/amd/amdgpu/mmhub_v1_0.c @@ -418,6 +418,8 @@ void mmhub_v1_0_init(struct amdgpu_devic hub->ctx0_ptb_addr_hi32 = SOC15_REG_OFFSET(MMHUB, 0, mmVM_CONTEXT0_PAGE_TABLE_BASE_ADDR_HI32); + hub->vm_inv_eng0_sem = + SOC15_REG_OFFSET(MMHUB, 0, mmVM_INVALIDATE_ENG0_SEM); hub->vm_inv_eng0_req = SOC15_REG_OFFSET(MMHUB, 0, mmVM_INVALIDATE_ENG0_REQ); hub->vm_inv_eng0_ack = --- a/drivers/gpu/drm/amd/amdgpu/mmhub_v2_0.c +++ b/drivers/gpu/drm/amd/amdgpu/mmhub_v2_0.c @@ -341,6 +341,8 @@ void mmhub_v2_0_init(struct amdgpu_devic hub->ctx0_ptb_addr_hi32 = SOC15_REG_OFFSET(MMHUB, 0, mmMMVM_CONTEXT0_PAGE_TABLE_BASE_ADDR_HI32); + hub->vm_inv_eng0_sem = + SOC15_REG_OFFSET(MMHUB, 0, mmMMVM_INVALIDATE_ENG0_SEM); hub->vm_inv_eng0_req = SOC15_REG_OFFSET(MMHUB, 0, mmMMVM_INVALIDATE_ENG0_REQ); hub->vm_inv_eng0_ack = --- a/drivers/gpu/drm/amd/amdgpu/mmhub_v9_4.c +++ b/drivers/gpu/drm/amd/amdgpu/mmhub_v9_4.c @@ -502,6 +502,10 @@ void mmhub_v9_4_init(struct amdgpu_devic SOC15_REG_OFFSET(MMHUB, 0, mmVML2VC0_VM_CONTEXT0_PAGE_TABLE_BASE_ADDR_HI32) + i * MMHUB_INSTANCE_REGISTER_OFFSET; + hub[i]->vm_inv_eng0_sem = + SOC15_REG_OFFSET(MMHUB, 0, + mmVML2VC0_VM_INVALIDATE_ENG0_SEM) + + i * MMHUB_INSTANCE_REGISTER_OFFSET; hub[i]->vm_inv_eng0_req = SOC15_REG_OFFSET(MMHUB, 0, mmVML2VC0_VM_INVALIDATE_ENG0_REQ) +