diff options
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c b/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c index 3071f51d6ca6..e6b00b507d4d 100644 --- a/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c +++ b/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c @@ -665,6 +665,11 @@ static int gmc_v9_0_late_init(void *handle) unsigned i; int r; + /* + * TODO - Uncomment once GART corruption issue is fixed. + */ + /* amdgpu_bo_late_init(adev); */ + for(i = 0; i < adev->num_rings; ++i) { struct amdgpu_ring *ring = adev->rings[i]; unsigned vmhub = ring->funcs->vmhub; @@ -806,6 +811,13 @@ static unsigned gmc_v9_0_get_vbios_fb_size(struct amdgpu_device *adev) #endif unsigned size; + /* + * TODO Remove once GART corruption is resolved + * Check related code in gmc_v9_0_sw_fini + * */ + size = 9 * 1024 * 1024; + +#if 0 if (REG_GET_FIELD(d1vga_control, D1VGA_CONTROL, D1VGA_MODE_ENABLE)) { size = 9 * 1024 * 1024; /* reserve 8MB for vga emulator and 1 MB for FB */ } else { @@ -833,6 +845,8 @@ static unsigned gmc_v9_0_get_vbios_fb_size(struct amdgpu_device *adev) /* return 0 if the pre-OS buffer uses up most of vram */ if ((adev->gmc.real_vram_size - size) < (8 * 1024 * 1024)) return 0; + +#endif return size; } @@ -956,6 +970,18 @@ static int gmc_v9_0_sw_fini(void *handle) amdgpu_gem_force_release(adev); amdgpu_vm_manager_fini(adev); gmc_v9_0_gart_fini(adev); + + /* + * TODO: + * Currently there is a bug where some memory client outside + * of the driver writes to first 8M of VRAM on S3 resume, + * this overrides GART which by default gets placed in first 8M and + * causes VM_FAULTS once GTT is accessed. + * Keep the stolen memory reservation until the while this is not solved. + * Also check code in gmc_v9_0_get_vbios_fb_size and gmc_v9_0_late_init + */ + amdgpu_bo_free_kernel(&adev->stolen_vga_memory, NULL, NULL); + amdgpu_bo_fini(adev); return 0; |