[PATCH 1/7] drm/amd: add definition for new memory type

Tao Zhou tao.zhou1 at amd.com
Wed Apr 30 08:25:44 UTC 2025


Support new version of HBM.

Signed-off-by: Tao Zhou <tao.zhou1 at amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang at amd.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.c | 3 +++
 drivers/gpu/drm/amd/amdgpu/amdgpu_object.c       | 3 ++-
 drivers/gpu/drm/amd/include/atomfirmware.h       | 1 +
 include/uapi/drm/amdgpu_drm.h                    | 1 +
 4 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.c
index eb015bdda8a7..c7d32fb216e4 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.c
@@ -281,6 +281,9 @@ static int convert_atom_mem_type_to_vram_type(struct amdgpu_device *adev,
 		case ATOM_DGPU_VRAM_TYPE_GDDR6:
 			vram_type = AMDGPU_VRAM_TYPE_GDDR6;
 			break;
+		case ATOM_DGPU_VRAM_TYPE_HBM3E:
+			vram_type = AMDGPU_VRAM_TYPE_HBM3E;
+			break;
 		default:
 			vram_type = AMDGPU_VRAM_TYPE_UNKNOWN;
 			break;
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
index bd6005cc06c0..4b8c492348b0 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
@@ -1080,7 +1080,8 @@ static const char * const amdgpu_vram_names[] = {
 	"GDDR6",
 	"DDR5",
 	"LPDDR4",
-	"LPDDR5"
+	"LPDDR5",
+	"HBM3E"
 };
 
 /**
diff --git a/drivers/gpu/drm/amd/include/atomfirmware.h b/drivers/gpu/drm/amd/include/atomfirmware.h
index 0160d65f3f5e..5c293017b541 100644
--- a/drivers/gpu/drm/amd/include/atomfirmware.h
+++ b/drivers/gpu/drm/amd/include/atomfirmware.h
@@ -183,6 +183,7 @@ enum atom_dgpu_vram_type {
   ATOM_DGPU_VRAM_TYPE_HBM2E = 0x61,
   ATOM_DGPU_VRAM_TYPE_GDDR6 = 0x70,
   ATOM_DGPU_VRAM_TYPE_HBM3 = 0x80,
+  ATOM_DGPU_VRAM_TYPE_HBM3E = 0x81,
 };
 
 enum atom_dp_vs_preemph_def{
diff --git a/include/uapi/drm/amdgpu_drm.h b/include/uapi/drm/amdgpu_drm.h
index adb811ed4c34..f3223c05f71c 100644
--- a/include/uapi/drm/amdgpu_drm.h
+++ b/include/uapi/drm/amdgpu_drm.h
@@ -1443,6 +1443,7 @@ struct drm_amdgpu_info_vbios {
 #define AMDGPU_VRAM_TYPE_DDR5  10
 #define AMDGPU_VRAM_TYPE_LPDDR4 11
 #define AMDGPU_VRAM_TYPE_LPDDR5 12
+#define AMDGPU_VRAM_TYPE_HBM3E 13
 
 #define AMDGPU_VRAM_TYPE_HBM_WIDTH 4096
 
-- 
2.34.1



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