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From f1cf138d867411f220d694a272b07352f68edb6f Mon Sep 17 00:00:00 2001
From: Jack Xiao <Jack.Xiao@amd.com>
Date: Tue, 28 May 2019 13:27:11 +0800
Subject: [PATCH 2645/2940] drm/amdgpu/gfx10: fix programming of
SC_HIZ_TILE_FIFO_SIZE field
max fifo size is 128 and PA_SC_FIFO_SIZE[20:15]=SC_HIZ_TILE_FIFO_SIZE
field is programmed in units of two entries, but 6 bits is insufficient
to hold value 128/2 = 64, so set this field as 0 which is interpreted by
the hardware as maximum physical fifo size(128).
Signed-off-by: Xiaojie Yuan <xiaojie.yuan@amd.com>
Signed-off-by: Jack Xiao <Jack.Xiao@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Jack Xiao <Jack.Xiao@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
---
drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c
index 4b44e87f6a0d..772437cd27b3 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c
@@ -1089,7 +1089,7 @@ static void gfx_v10_0_gpu_early_init(struct amdgpu_device *adev)
adev->gfx.config.max_hw_contexts = 8;
adev->gfx.config.sc_prim_fifo_size_frontend = 0x20;
adev->gfx.config.sc_prim_fifo_size_backend = 0x100;
- adev->gfx.config.sc_hiz_tile_fifo_size = 0x80;
+ adev->gfx.config.sc_hiz_tile_fifo_size = 0x0;
adev->gfx.config.sc_earlyz_tile_fifo_size = 0x4C0;
gb_addr_config = RREG32_SOC15(GC, 0, mmGB_ADDR_CONFIG);
break;
--
2.17.1
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