From 062f4b61fbe912a440761636a598101b97ab4b71 Mon Sep 17 00:00:00 2001
From: Alex Deucher <alexander.deucher@amd.com>
Date: Mon, 23 May 2022 11:24:31 -0400
Subject: drm/amdgpu: differentiate between LP and non-LP DDR memory
Git-commit: d534ca7128d7bf681ed6d462c09b9d6ffb3bed91
Patch-mainline: v5.19-rc1
References: jsc#PED-1166 jsc#PED-1168 jsc#PED-1170 jsc#PED-1218 jsc#PED-1220 jsc#PED-1222 jsc#PED-1223 jsc#PED-1225
Some applications want to know whether the memory is LP or
not.
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Patrik Jakobsson <pjakobsson@suse.de>
---
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 5444515c1476..e1e6441c475f 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
@@ -1018,7 +1018,9 @@ 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 9a1d210d135d..d9d475d65c76 100644
--- a/include/uapi/drm/amdgpu_drm.h
+++ b/include/uapi/drm/amdgpu_drm.h
@@ -988,6 +988,8 @@ 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 */
--
2.38.1