[AMD Official Use Only - General]
Reviewed-by: Hawking Zhang <Hawking.Zhang@xxxxxxx>
Regards,
Hawking
-----Original Message-----
From: amd-gfx <amd-gfx-bounces@xxxxxxxxxxxxxxxxxxxxx> On Behalf Of Alex Deucher
Sent: Monday, May 23, 2022 23:39
To: amd-gfx@xxxxxxxxxxxxxxxxxxxxx
Cc: Deucher, Alexander <Alexander.Deucher@xxxxxxx>
Subject: [PATCH] drm/amdgpu: differenciate between LP and non-LP DDR memory
Some applications want to know whether the memory is LP or not.
Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx>
---
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
