drm/amd: Load MES microcode during early_init

Add an early_init phase to MES for fetching and validating microcode
from the filesystem.

If MES microcode is required but not available during early init, the
firmware framebuffer will have already been released and the screen will
freeze.

Move the request for MES microcode into the early_init phase
so that if it's not available, early_init will fail.

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Lijo Lazar <lijo.lazar@amd.com>
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

1 files changed, 17 insertions, 71 deletions

diff --git a/drivers/gpu/drm/amd/amdgpu/mes_v11_0.c b/drivers/gpu/drm/amd/amdgpu/mes_v11_0.c
index 2c0964a2075f..ea615c914ef5 100644
--- a/drivers/gpu/drm/amd/amdgpu/mes_v11_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/mes_v11_0.c
@@ -459,73 +459,6 @@ static const struct amdgpu_mes_funcs mes_v11_0_funcs = {
 	.misc_op = mes_v11_0_misc_op,
 };
 
-static int mes_v11_0_init_microcode(struct amdgpu_device *adev,
-				    enum admgpu_mes_pipe pipe)
-{
-	char fw_name[30];
-	char ucode_prefix[30];
-	int err;
-	const struct mes_firmware_header_v1_0 *mes_hdr;
-	struct amdgpu_firmware_info *info;
-
-	amdgpu_ucode_ip_version_decode(adev, GC_HWIP, ucode_prefix, sizeof(ucode_prefix));
-
-	if (pipe == AMDGPU_MES_SCHED_PIPE)
-		snprintf(fw_name, sizeof(fw_name), "amdgpu/%s_mes.bin",
-			 ucode_prefix);
-	else
-		snprintf(fw_name, sizeof(fw_name), "amdgpu/%s_mes1.bin",
-			 ucode_prefix);
-
-	err = request_firmware(&adev->mes.fw[pipe], fw_name, adev->dev);
-	if (err)
-		return err;
-
-	err = amdgpu_ucode_validate(adev->mes.fw[pipe]);
-	if (err) {
-		release_firmware(adev->mes.fw[pipe]);
-		adev->mes.fw[pipe] = NULL;
-		return err;
-	}
-
-	mes_hdr = (const struct mes_firmware_header_v1_0 *)
-		adev->mes.fw[pipe]->data;
-	adev->mes.uc_start_addr[pipe] =
-		le32_to_cpu(mes_hdr->mes_uc_start_addr_lo) |
-		((uint64_t)(le32_to_cpu(mes_hdr->mes_uc_start_addr_hi)) << 32);
-	adev->mes.data_start_addr[pipe] =
-		le32_to_cpu(mes_hdr->mes_data_start_addr_lo) |
-		((uint64_t)(le32_to_cpu(mes_hdr->mes_data_start_addr_hi)) << 32);
-
-	if (adev->firmware.load_type == AMDGPU_FW_LOAD_PSP) {
-		int ucode, ucode_data;
-
-		if (pipe == AMDGPU_MES_SCHED_PIPE) {
-			ucode = AMDGPU_UCODE_ID_CP_MES;
-			ucode_data = AMDGPU_UCODE_ID_CP_MES_DATA;
-		} else {
-			ucode = AMDGPU_UCODE_ID_CP_MES1;
-			ucode_data = AMDGPU_UCODE_ID_CP_MES1_DATA;
-		}
-
-		info = &adev->firmware.ucode[ucode];
-		info->ucode_id = ucode;
-		info->fw = adev->mes.fw[pipe];
-		adev->firmware.fw_size +=
-			ALIGN(le32_to_cpu(mes_hdr->mes_ucode_size_bytes),
-			      PAGE_SIZE);
-
-		info = &adev->firmware.ucode[ucode_data];
-		info->ucode_id = ucode_data;
-		info->fw = adev->mes.fw[pipe];
-		adev->firmware.fw_size +=
-			ALIGN(le32_to_cpu(mes_hdr->mes_ucode_data_size_bytes),
-			      PAGE_SIZE);
-	}
-
-	return 0;
-}
-
 static void mes_v11_0_free_microcode(struct amdgpu_device *adev,
 				     enum admgpu_mes_pipe pipe)
 {
@@ -1104,10 +1037,6 @@ static int mes_v11_0_sw_init(void *handle)
 		if (!adev->enable_mes_kiq && pipe == AMDGPU_MES_KIQ_PIPE)
 			continue;
 
-		r = mes_v11_0_init_microcode(adev, pipe);
-		if (r)
-			return r;
-
 		r = mes_v11_0_allocate_eop_buf(adev, pipe);
 		if (r)
 			return r;
@@ -1342,6 +1271,22 @@ static int mes_v11_0_resume(void *handle)
 	return amdgpu_mes_resume(adev);
 }
 
+static int mes_v11_0_early_init(void *handle)
+{
+	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
+	int pipe, r;
+
+	for (pipe = 0; pipe < AMDGPU_MAX_MES_PIPES; pipe++) {
+		if (!adev->enable_mes_kiq && pipe == AMDGPU_MES_KIQ_PIPE)
+			continue;
+		r = amdgpu_mes_init_microcode(adev, pipe);
+		if (r)
+			return r;
+	}
+
+	return 0;
+}
+
 static int mes_v11_0_late_init(void *handle)
 {
 	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
@@ -1356,6 +1301,7 @@ static int mes_v11_0_late_init(void *handle)
 
 static const struct amd_ip_funcs mes_v11_0_ip_funcs = {
 	.name = "mes_v11_0",
+	.early_init = mes_v11_0_early_init,
 	.late_init = mes_v11_0_late_init,
 	.sw_init = mes_v11_0_sw_init,
 	.sw_fini = mes_v11_0_sw_fini,