From: Evan Quan evan.quan@amd.com
commit c83c4e1912446db697a120eb30126cd80cbf6349 upstream.
Polaris12 32bit ASIC needs a special MC firmware.
Signed-off-by: Evan Quan evan.quan@amd.com Reviewed-by: Alex Deucher alexander.deucher@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/gmc_v8_0.c | 13 ++++++++++--- 1 file changed, 10 insertions(+), 3 deletions(-)
--- a/drivers/gpu/drm/amd/amdgpu/gmc_v8_0.c +++ b/drivers/gpu/drm/amd/amdgpu/gmc_v8_0.c @@ -59,6 +59,7 @@ MODULE_FIRMWARE("amdgpu/tonga_mc.bin"); MODULE_FIRMWARE("amdgpu/polaris11_mc.bin"); MODULE_FIRMWARE("amdgpu/polaris10_mc.bin"); MODULE_FIRMWARE("amdgpu/polaris12_mc.bin"); +MODULE_FIRMWARE("amdgpu/polaris12_32_mc.bin"); MODULE_FIRMWARE("amdgpu/polaris11_k_mc.bin"); MODULE_FIRMWARE("amdgpu/polaris10_k_mc.bin"); MODULE_FIRMWARE("amdgpu/polaris12_k_mc.bin"); @@ -243,10 +244,16 @@ static int gmc_v8_0_init_microcode(struc chip_name = "polaris10"; break; case CHIP_POLARIS12: - if (ASICID_IS_P23(adev->pdev->device, adev->pdev->revision)) + if (ASICID_IS_P23(adev->pdev->device, adev->pdev->revision)) { chip_name = "polaris12_k"; - else - chip_name = "polaris12"; + } else { + WREG32(mmMC_SEQ_IO_DEBUG_INDEX, ixMC_IO_DEBUG_UP_159); + /* Polaris12 32bit ASIC needs a special MC firmware */ + if (RREG32(mmMC_SEQ_IO_DEBUG_DATA) == 0x05b4dc40) + chip_name = "polaris12_32"; + else + chip_name = "polaris12"; + } break; case CHIP_FIJI: case CHIP_CARRIZO: