This is a note to let you know that I've just added the patch titled
drm/amdgpu: apply the RV2 system aperture fix to RN/CZN as well
to the 6.6-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
drm-amdgpu-apply-the-rv2-system-aperture-fix-to-rn-c.patch
and it can be found in the queue-6.6 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 935b4545a8cc15448a6c4563543fd1d7f06d9382
Author: Alex Deucher <alexander.deucher@xxxxxxx>
Date: Wed Jan 3 11:55:53 2024 -0500
drm/amdgpu: apply the RV2 system aperture fix to RN/CZN as well
[ Upstream commit 16783d8ef08448815e149e40c82fc1e1fc41ddbf ]
These chips needs the same fix. This was previously not seen
on then since the AGP aperture expanded the system aperture,
but this showed up again when AGP was disabled.
Reviewed-and-tested-by: Jiadong Zhu <Jiadong.Zhu@xxxxxxx>
Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/gpu/drm/amd/amdgpu/gfxhub_v1_0.c b/drivers/gpu/drm/amd/amdgpu/gfxhub_v1_0.c
index cdc290a474a9..66c6bab75f8a 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfxhub_v1_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfxhub_v1_0.c
@@ -102,7 +102,9 @@ static void gfxhub_v1_0_init_system_aperture_regs(struct amdgpu_device *adev)
WREG32_SOC15_RLC(GC, 0, mmMC_VM_SYSTEM_APERTURE_LOW_ADDR,
min(adev->gmc.fb_start, adev->gmc.agp_start) >> 18);
- if (adev->apu_flags & AMD_APU_IS_RAVEN2)
+ if (adev->apu_flags & (AMD_APU_IS_RAVEN2 |
+ AMD_APU_IS_RENOIR |
+ AMD_APU_IS_GREEN_SARDINE))
/*
* Raven2 has a HW issue that it is unable to use the
* vram which is out of MC_VM_SYSTEM_APERTURE_HIGH_ADDR.
diff --git a/drivers/gpu/drm/amd/amdgpu/gfxhub_v1_2.c b/drivers/gpu/drm/amd/amdgpu/gfxhub_v1_2.c
index 0834af771549..b50f24f7ea5c 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfxhub_v1_2.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfxhub_v1_2.c
@@ -139,7 +139,9 @@ gfxhub_v1_2_xcc_init_system_aperture_regs(struct amdgpu_device *adev,
WREG32_SOC15_RLC(GC, GET_INST(GC, i), regMC_VM_SYSTEM_APERTURE_LOW_ADDR,
min(adev->gmc.fb_start, adev->gmc.agp_start) >> 18);
- if (adev->apu_flags & AMD_APU_IS_RAVEN2)
+ if (adev->apu_flags & (AMD_APU_IS_RAVEN2 |
+ AMD_APU_IS_RENOIR |
+ AMD_APU_IS_GREEN_SARDINE))
/*
* Raven2 has a HW issue that it is unable to use the
* vram which is out of MC_VM_SYSTEM_APERTURE_HIGH_ADDR.
diff --git a/drivers/gpu/drm/amd/amdgpu/mmhub_v1_0.c b/drivers/gpu/drm/amd/amdgpu/mmhub_v1_0.c
index fb91b31056ca..d25f87fb1971 100644
--- a/drivers/gpu/drm/amd/amdgpu/mmhub_v1_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/mmhub_v1_0.c
@@ -96,7 +96,9 @@ static void mmhub_v1_0_init_system_aperture_regs(struct amdgpu_device *adev)
WREG32_SOC15(MMHUB, 0, mmMC_VM_SYSTEM_APERTURE_LOW_ADDR,
min(adev->gmc.fb_start, adev->gmc.agp_start) >> 18);
- if (adev->apu_flags & AMD_APU_IS_RAVEN2)
+ if (adev->apu_flags & (AMD_APU_IS_RAVEN2 |
+ AMD_APU_IS_RENOIR |
+ AMD_APU_IS_GREEN_SARDINE))
/*
* Raven2 has a HW issue that it is unable to use the vram which
* is out of MC_VM_SYSTEM_APERTURE_HIGH_ADDR. So here is the
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
index fabbfea33b0c..56a61ac2b3f5 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -1247,7 +1247,9 @@ static void mmhub_read_system_context(struct amdgpu_device *adev, struct dc_phy_
/* AGP aperture is disabled */
if (agp_bot == agp_top) {
logical_addr_low = adev->gmc.fb_start >> 18;
- if (adev->apu_flags & AMD_APU_IS_RAVEN2)
+ if (adev->apu_flags & (AMD_APU_IS_RAVEN2 |
+ AMD_APU_IS_RENOIR |
+ AMD_APU_IS_GREEN_SARDINE))
/*
* Raven2 has a HW issue that it is unable to use the vram which
* is out of MC_VM_SYSTEM_APERTURE_HIGH_ADDR. So here is the
@@ -1259,7 +1261,9 @@ static void mmhub_read_system_context(struct amdgpu_device *adev, struct dc_phy_
logical_addr_high = adev->gmc.fb_end >> 18;
} else {
logical_addr_low = min(adev->gmc.fb_start, adev->gmc.agp_start) >> 18;
- if (adev->apu_flags & AMD_APU_IS_RAVEN2)
+ if (adev->apu_flags & (AMD_APU_IS_RAVEN2 |
+ AMD_APU_IS_RENOIR |
+ AMD_APU_IS_GREEN_SARDINE))
/*
* Raven2 has a HW issue that it is unable to use the vram which
* is out of MC_VM_SYSTEM_APERTURE_HIGH_ADDR. So here is the
