drm/amdgpu/psp11: TA firmware is optional (v3)

Don't warn or fail if it's missing.

v2: handle xgmi case more gracefully.
v3: handle older kernels properly

Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Tested-by: James Zhu <James.Zhu@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 8fab0d6..3a9b48b 100644 (file)
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c
@@ -90,8 +90,10 @@ static int psp_sw_fini(void *handle)
        adev->psp.sos_fw = NULL;
        release_firmware(adev->psp.asd_fw);
        adev->psp.asd_fw = NULL;
-       release_firmware(adev->psp.ta_fw);
-       adev->psp.ta_fw = NULL;
+       if (adev->psp.ta_fw) {
+               release_firmware(adev->psp.ta_fw);
+               adev->psp.ta_fw = NULL;
+       }
        return 0;
 }
 
@@ -435,6 +437,9 @@ static int psp_xgmi_initialize(struct psp_context *psp)
        struct ta_xgmi_shared_memory *xgmi_cmd;
        int ret;
 
+       if (!psp->adev->psp.ta_fw)
+               return -ENOENT;
+
        if (!psp->xgmi_context.initialized) {
                ret = psp_xgmi_init_shared_buf(psp);
                if (ret)

diff --git a/drivers/gpu/drm/amd/amdgpu/psp_v11_0.c b/drivers/gpu/drm/amd/amdgpu/psp_v11_0.c
index 0c6e7f9..189fcb0 100644 (file)
--- a/drivers/gpu/drm/amd/amdgpu/psp_v11_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/psp_v11_0.c
@@ -152,18 +152,22 @@ static int psp_v11_0_init_microcode(struct psp_context *psp)
 
        snprintf(fw_name, sizeof(fw_name), "amdgpu/%s_ta.bin", chip_name);
        err = request_firmware(&adev->psp.ta_fw, fw_name, adev->dev);
-       if (err)
-               goto out2;
-
-       err = amdgpu_ucode_validate(adev->psp.ta_fw);
-       if (err)
-               goto out2;
-
-       ta_hdr = (const struct ta_firmware_header_v1_0 *)adev->psp.ta_fw->data;
-       adev->psp.ta_xgmi_ucode_version = le32_to_cpu(ta_hdr->ta_xgmi_ucode_version);
-       adev->psp.ta_xgmi_ucode_size = le32_to_cpu(ta_hdr->ta_xgmi_size_bytes);
-       adev->psp.ta_xgmi_start_addr = (uint8_t *)ta_hdr +
-               le32_to_cpu(ta_hdr->header.ucode_array_offset_bytes);
+       if (err) {
+               release_firmware(adev->psp.ta_fw);
+               adev->psp.ta_fw = NULL;
+               dev_info(adev->dev,
+                        "psp v11.0: Failed to load firmware \"%s\"\n", fw_name);
+       } else {
+               err = amdgpu_ucode_validate(adev->psp.ta_fw);
+               if (err)
+                       goto out2;
+
+               ta_hdr = (const struct ta_firmware_header_v1_0 *)adev->psp.ta_fw->data;
+               adev->psp.ta_xgmi_ucode_version = le32_to_cpu(ta_hdr->ta_xgmi_ucode_version);
+               adev->psp.ta_xgmi_ucode_size = le32_to_cpu(ta_hdr->ta_xgmi_size_bytes);
+               adev->psp.ta_xgmi_start_addr = (uint8_t *)ta_hdr +
+                       le32_to_cpu(ta_hdr->header.ucode_array_offset_bytes);
+       }
 
        return 0;