diff options
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_ucode.c | 36 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_ucode.h | 3 |
2 files changed, 39 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ucode.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ucode.c index eafcddce58d3..8ebfec12da87 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ucode.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ucode.c @@ -1312,3 +1312,39 @@ void amdgpu_ucode_ip_version_decode(struct amdgpu_device *adev, int block_type, snprintf(ucode_prefix, len, "%s_%d_%d_%d", ip_name, maj, min, rev); } + +/* + * amdgpu_ucode_request - Fetch and validate amdgpu microcode + * + * @adev: amdgpu device + * @fw: pointer to load firmware to + * @fw_name: firmware to load + * + * This is a helper that will use request_firmware and amdgpu_ucode_validate + * to load and run basic validation on firmware. If the load fails, remap + * the error code to -ENODEV, so that early_init functions will fail to load. + */ +int amdgpu_ucode_request(struct amdgpu_device *adev, const struct firmware **fw, + const char *fw_name) +{ + int err = request_firmware(fw, fw_name, adev->dev); + + if (err) + return -ENODEV; + err = amdgpu_ucode_validate(*fw); + if (err) + dev_dbg(adev->dev, "\"%s\" failed to validate\n", fw_name); + + return err; +} + +/* + * amdgpu_ucode_release - Release firmware microcode + * + * @fw: pointer to firmware to release + */ +void amdgpu_ucode_release(const struct firmware **fw) +{ + release_firmware(*fw); + *fw = NULL; +} diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ucode.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_ucode.h index 552e06929229..848579d4988b 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ucode.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ucode.h @@ -544,6 +544,9 @@ void amdgpu_ucode_print_sdma_hdr(const struct common_firmware_header *hdr); void amdgpu_ucode_print_psp_hdr(const struct common_firmware_header *hdr); void amdgpu_ucode_print_gpu_info_hdr(const struct common_firmware_header *hdr); int amdgpu_ucode_validate(const struct firmware *fw); +int amdgpu_ucode_request(struct amdgpu_device *adev, const struct firmware **fw, + const char *fw_name); +void amdgpu_ucode_release(const struct firmware **fw); bool amdgpu_ucode_hdr_version(union amdgpu_firmware_header *hdr, uint16_t hdr_major, uint16_t hdr_minor); |