From f2c1b5c145c8ffe71b314d94f35383ac0d94edd0 Mon Sep 17 00:00:00 2001 From: Huang Rui Date: Tue, 21 Jul 2020 14:57:02 +0800 Subject: drm/amdgpu: abstract set_vm_fault_masks function to refine the programming This patch is to add set_vm_fault_masks helper to amdgpu_gmc to refine the original programming. Signed-off-by: Huang Rui Reviewed-by: Alex Deucher Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.c | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.c') diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.c index 34cbd6f6a56b..21d2c8543f85 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.c @@ -411,3 +411,23 @@ void amdgpu_gmc_tmz_set(struct amdgpu_device *adev) break; } } + +void amdgpu_gmc_set_vm_fault_masks(struct amdgpu_device *adev, int hub_type, + bool enable) +{ + struct amdgpu_vmhub *hub; + u32 tmp, reg, i; + + hub = &adev->vmhub[hub_type]; + for (i = 0; i < 16; i++) { + reg = hub->vm_context0_cntl + hub->ctx_distance * i; + + tmp = RREG32(reg); + if (enable) + tmp |= hub->vm_cntx_cntl_vm_fault; + else + tmp &= ~hub->vm_cntx_cntl_vm_fault; + + WREG32(reg, tmp); + } +} -- cgit v1.2.3