From 228c54970cae5026956a02c338204b5c119418c8 Mon Sep 17 00:00:00 2001
From: Alex Deucher <alexander.deucher@amd.com>
Date: Fri, 22 May 2020 18:14:32 -0400
Subject: drm/amdgpu/gmc10: program the smallK fragment size
Git-commit: ec6837591f99245b061d82571331160285306b7a
Patch-mainline: v5.9-rc1
References: jsc#SLE-12680, jsc#SLE-12880, jsc#SLE-12882, jsc#SLE-12883, jsc#SLE-13496, jsc#SLE-15322
Explicitly set the smallk size to 0 (4k). This is the hw
default, but set it anyway just in case something else
changed it.
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Patrik Jakobsson <pjakobsson@suse.de>
---
drivers/gpu/drm/amd/amdgpu/gfxhub_v2_0.c | 4 ++++
drivers/gpu/drm/amd/amdgpu/mmhub_v2_0.c | 4 ++++
2 files changed, 8 insertions(+)
diff --git a/drivers/gpu/drm/amd/amdgpu/gfxhub_v2_0.c b/drivers/gpu/drm/amd/amdgpu/gfxhub_v2_0.c
index cc866c367939..6939edfc5232 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfxhub_v2_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfxhub_v2_0.c
@@ -181,6 +181,10 @@ static void gfxhub_v2_0_init_cache_regs(struct amdgpu_device *adev)
tmp = REG_SET_FIELD(tmp, GCVM_L2_CNTL4, VMC_TAP_PDE_REQUEST_PHYSICAL, 0);
tmp = REG_SET_FIELD(tmp, GCVM_L2_CNTL4, VMC_TAP_PTE_REQUEST_PHYSICAL, 0);
WREG32_SOC15(GC, 0, mmGCVM_L2_CNTL4, tmp);
+
+ tmp = mmGCVM_L2_CNTL5_DEFAULT;
+ tmp = REG_SET_FIELD(tmp, GCVM_L2_CNTL5, L2_CACHE_SMALLK_FRAGMENT_SIZE, 0);
+ WREG32_SOC15(GC, 0, mmGCVM_L2_CNTL5, tmp);
}
static void gfxhub_v2_0_enable_system_domain(struct amdgpu_device *adev)
diff --git a/drivers/gpu/drm/amd/amdgpu/mmhub_v2_0.c b/drivers/gpu/drm/amd/amdgpu/mmhub_v2_0.c
index fb3f228458e5..616309e85d6e 100644
--- a/drivers/gpu/drm/amd/amdgpu/mmhub_v2_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/mmhub_v2_0.c
@@ -164,6 +164,10 @@ static void mmhub_v2_0_init_cache_regs(struct amdgpu_device *adev)
tmp = REG_SET_FIELD(tmp, MMVM_L2_CNTL4, VMC_TAP_PDE_REQUEST_PHYSICAL, 0);
tmp = REG_SET_FIELD(tmp, MMVM_L2_CNTL4, VMC_TAP_PTE_REQUEST_PHYSICAL, 0);
WREG32_SOC15(MMHUB, 0, mmMMVM_L2_CNTL4, tmp);
+
+ tmp = mmMMVM_L2_CNTL5_DEFAULT;
+ tmp = REG_SET_FIELD(tmp, MMVM_L2_CNTL5, L2_CACHE_SMALLK_FRAGMENT_SIZE, 0);
+ WREG32_SOC15(GC, 0, mmMMVM_L2_CNTL5, tmp);
}
static void mmhub_v2_0_enable_system_domain(struct amdgpu_device *adev)
--
2.29.2