From: Likun Gao <Likun.Gao@amd.com>
Date: Wed, 18 Jun 2025 09:56:30 +0000 (+0800)
Subject: drm/amdgpu: only copy ucode for enabled xcc
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=bb562c955e174f028ed06e92fdb23411ad456f0a;p=thirdparty%2Fkernel%2Flinux.git

drm/amdgpu: only copy ucode for enabled xcc

Only copy ucode for enabled xcc instead of copy for all 8 xcc
for rlc autoload on gfx v12_1 to save time.

Signed-off-by: Likun Gao <Likun.Gao@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
---

diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v12_1.c b/drivers/gpu/drm/amd/amdgpu/gfx_v12_1.c
index 12564e3cc7d0e..0c18b07cae3b7 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v12_1.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v12_1.c
@@ -905,11 +905,13 @@ static void gfx_v12_1_rlc_backdoor_autoload_copy_ucode(struct amdgpu_device *ade
 		fw_size = toc_fw_inst_size;
 
 	for (i = 0; i < num_inst; i++) {
-		memcpy(ptr + toc_offset + i * toc_fw_inst_size, fw_data, fw_size);
+		if ((1 << (i / 2)) & adev->gfx.xcc_mask) {
+			memcpy(ptr + toc_offset + i * toc_fw_inst_size, fw_data, fw_size);
 
-		if (fw_size < toc_fw_inst_size)
-			memset(ptr + toc_offset + fw_size + i * toc_fw_inst_size,
-			       0, toc_fw_inst_size - fw_size);
+			if (fw_size < toc_fw_inst_size)
+				memset(ptr + toc_offset + fw_size + i * toc_fw_inst_size,
+				       0, toc_fw_inst_size - fw_size);
+		}
 	}
 }