diff options
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.c | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.c index 21d2c8543f85..fc9e18aaa76e 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.c @@ -27,6 +27,7 @@ #include <linux/io-64-nonatomic-lo-hi.h> #include "amdgpu.h" +#include "amdgpu_gmc.h" #include "amdgpu_ras.h" #include "amdgpu_xgmi.h" @@ -431,3 +432,45 @@ void amdgpu_gmc_set_vm_fault_masks(struct amdgpu_device *adev, int hub_type, WREG32(reg, tmp); } } + +void amdgpu_gmc_get_vbios_allocations(struct amdgpu_device *adev) +{ + unsigned size; + + /* + * 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. + */ + switch (adev->asic_type) { + case CHIP_VEGA10: + case CHIP_RAVEN: + case CHIP_ARCTURUS: + case CHIP_RENOIR: + adev->gmc.keep_stolen_vga_memory = true; + break; + default: + adev->gmc.keep_stolen_vga_memory = false; + break; + } + + if (!amdgpu_device_ip_get_ip_block(adev, AMD_IP_BLOCK_TYPE_DCE)) + size = 0; + else + size = amdgpu_gmc_get_vbios_fb_size(adev); + + /* set to 0 if the pre-OS buffer uses up most of vram */ + if ((adev->gmc.real_vram_size - size) < (8 * 1024 * 1024)) + size = 0; + + if (size > AMDGPU_VBIOS_VGA_ALLOCATION) { + adev->gmc.stolen_vga_size = AMDGPU_VBIOS_VGA_ALLOCATION; + adev->gmc.stolen_extended_size = size - adev->gmc.stolen_vga_size; + } else { + adev->gmc.stolen_vga_size = size; + adev->gmc.stolen_extended_size = 0; + } +} |