[PATCH] drm/amdgpu: differenciate between LP and non-LP DDR memory

[Alex Deucher]

Some applications want to know whether the memory is LP or
not.

Signed-off-by: Alex Deucher <alexander.deucher at amd.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.c | 8 ++++++--
 drivers/gpu/drm/amd/amdgpu/amdgpu_object.c       | 4 +++-
 include/uapi/drm/amdgpu_drm.h                    | 2 ++
 3 files changed, 11 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.c
index 63e0293edc5f..fd8f3731758e 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.c
@@ -188,13 +188,17 @@ static int convert_atom_mem_type_to_vram_type(struct amdgpu_device *adev,
 			vram_type = AMDGPU_VRAM_TYPE_DDR3;
 			break;
 		case Ddr4MemType:
-		case LpDdr4MemType:
 			vram_type = AMDGPU_VRAM_TYPE_DDR4;
 			break;
+		case LpDdr4MemType:
+			vram_type = AMDGPU_VRAM_TYPE_LPDDR4;
+			break;
 		case Ddr5MemType:
-		case LpDdr5MemType:
 			vram_type = AMDGPU_VRAM_TYPE_DDR5;
 			break;
+		case LpDdr5MemType:
+			vram_type = AMDGPU_VRAM_TYPE_LPDDR5;
+			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 2780eb5b533a..0d3fd1db5474 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
@@ -1020,7 +1020,9 @@ static const char *amdgpu_vram_names[] = {
 	"DDR3",
 	"DDR4",
 	"GDDR6",
-	"DDR5"
+	"DDR5",
+	"LPDDR4",
+	"LPDDR5"
 };
 
 /**
diff --git a/include/uapi/drm/amdgpu_drm.h b/include/uapi/drm/amdgpu_drm.h
index bb50644a2129..3a2674b4a2d9 100644
--- a/include/uapi/drm/amdgpu_drm.h
+++ b/include/uapi/drm/amdgpu_drm.h
@@ -994,6 +994,8 @@ struct drm_amdgpu_info_vbios {
 #define AMDGPU_VRAM_TYPE_DDR4  8
 #define AMDGPU_VRAM_TYPE_GDDR6 9
 #define AMDGPU_VRAM_TYPE_DDR5  10
+#define AMDGPU_VRAM_TYPE_LPDDR4 11
+#define AMDGPU_VRAM_TYPE_LPDDR5 12
 
 struct drm_amdgpu_info_device {
 	/** PCI Device ID */
-- 
2.35.3