drm/amdgpu: add helper function to init asd ucode

asd is unified ucode across asic. it is not necessary
to keep its software structure to be ip specific one

Signed-off-by: Hawking Zhang <Hawking.Zhang@amd.com>
Reviewed-by: Guchun Chen <guchun.chen@amd.com>
Reviewed-by: John Clements <john.clements@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c
index 7797065..3656068 100644 (file)
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c
@@ -1840,6 +1840,42 @@ int psp_ring_cmd_submit(struct psp_context *psp,
        return 0;
 }
 
+int psp_init_asd_microcode(struct psp_context *psp,
+                          const char *chip_name)
+{
+       struct amdgpu_device *adev = psp->adev;
+       char fw_name[30];
+       const struct psp_firmware_header_v1_0 *asd_hdr;
+       int err = 0;
+
+       if (!chip_name) {
+               dev_err(adev->dev, "invalid chip name for asd microcode\n");
+               return -EINVAL;
+       }
+
+       snprintf(fw_name, sizeof(fw_name), "amdgpu/%s_asd.bin", chip_name);
+       err = request_firmware(&adev->psp.asd_fw, fw_name, adev->dev);
+       if (err)
+               goto out;
+
+       err = amdgpu_ucode_validate(adev->psp.asd_fw);
+       if (err)
+               goto out;
+
+       asd_hdr = (const struct psp_firmware_header_v1_0 *)adev->psp.asd_fw->data;
+       adev->psp.asd_fw_version = le32_to_cpu(asd_hdr->header.ucode_version);
+       adev->psp.asd_feature_version = le32_to_cpu(asd_hdr->ucode_feature_version);
+       adev->psp.asd_ucode_size = le32_to_cpu(asd_hdr->header.ucode_size_bytes);
+       adev->psp.asd_start_addr = (uint8_t *)asd_hdr +
+                               le32_to_cpu(asd_hdr->header.ucode_array_offset_bytes);
+       return 0;
+out:
+       dev_err(adev->dev, "fail to initialize asd microcode\n");
+       release_firmware(adev->psp.asd_fw);
+       adev->psp.asd_fw = NULL;
+       return err;
+}
+
 static int psp_set_clockgating_state(void *handle,
                                     enum amd_clockgating_state state)
 {

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.h
index f8b1f03..a763148 100644 (file)
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.h
@@ -385,4 +385,6 @@ int psp_ring_cmd_submit(struct psp_context *psp,
                        uint64_t cmd_buf_mc_addr,
                        uint64_t fence_mc_addr,
                        int index);
+int psp_init_asd_microcode(struct psp_context *psp,
+                          const char *chip_name);
 #endif