diff options
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.c | 27 |
1 files changed, 19 insertions, 8 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.c index f74a51a93ebb..2bfeaacd050c 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.c @@ -316,14 +316,6 @@ void amdgpu_gmc_agp_location(struct amdgpu_device *adev, struct amdgpu_gmc *mc) const uint64_t sixteen_gb_mask = ~(sixteen_gb - 1); u64 size_af, size_bf; - if (amdgpu_sriov_vf(adev)) { - mc->agp_start = 0xffffffffffff; - mc->agp_end = 0x0; - mc->agp_size = 0; - - return; - } - if (mc->fb_start > mc->gart_start) { size_bf = (mc->fb_start & sixteen_gb_mask) - ALIGN(mc->gart_end + 1, sixteen_gb); @@ -348,6 +340,25 @@ void amdgpu_gmc_agp_location(struct amdgpu_device *adev, struct amdgpu_gmc *mc) } /** + * amdgpu_gmc_set_agp_default - Set the default AGP aperture value. + * @adev: amdgpu device structure holding all necessary information + * @mc: memory controller structure holding memory information + * + * To disable the AGP aperture, you need to set the start to a larger + * value than the end. This function sets the default value which + * can then be overridden using amdgpu_gmc_agp_location() if you want + * to enable the AGP aperture on a specific chip. + * + */ +void amdgpu_gmc_set_agp_default(struct amdgpu_device *adev, + struct amdgpu_gmc *mc) +{ + mc->agp_start = 0xffffffffffff; + mc->agp_end = 0; + mc->agp_size = 0; +} + +/** * amdgpu_gmc_fault_key - get hask key from vm fault address and pasid * * @addr: 48 bit physical address, page aligned (36 significant bits) |