From a5fc7aa901b6818c67cc7e5cef8201fbaab8fa1b Mon Sep 17 00:00:00 2001
From: Jonathan Marek <jonathan@marek.ca>
Date: Fri, 23 Apr 2021 15:08:18 -0400
Subject: drm/msm: replace MSM_BO_UNCACHED with MSM_BO_WC for internal objects
msm_gem_get_vaddr() currently always maps as writecombine, so use the right
flag instead of relying on broken behavior (things don't actually work if
they are mapped as uncached).
Signed-off-by: Jonathan Marek <jonathan@marek.ca>
Acked-by: Jordan Crouse <jordan@cosmicpenguin.net>
Link: https://lore.kernel.org/r/20210423190833.25319-3-jonathan@marek.ca
Signed-off-by: Rob Clark <robdclark@chromium.org>
---
drivers/gpu/drm/msm/adreno/a6xx_gpu.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
(limited to 'drivers/gpu/drm/msm/adreno/a6xx_gpu.c')
diff --git a/drivers/gpu/drm/msm/adreno/a6xx_gpu.c b/drivers/gpu/drm/msm/adreno/a6xx_gpu.c
index b4d8e1b01ee4..6212aa2a8081 100644
--- a/drivers/gpu/drm/msm/adreno/a6xx_gpu.c
+++ b/drivers/gpu/drm/msm/adreno/a6xx_gpu.c
@@ -852,7 +852,7 @@ static int a6xx_hw_init(struct msm_gpu *gpu)
if (!a6xx_gpu->shadow_bo) {
a6xx_gpu->shadow = msm_gem_kernel_new_locked(gpu->dev,
sizeof(u32) * gpu->nr_rings,
- MSM_BO_UNCACHED | MSM_BO_MAP_PRIV,
+ MSM_BO_WC | MSM_BO_MAP_PRIV,
gpu->aspace, &a6xx_gpu->shadow_bo,
&a6xx_gpu->shadow_iova);
--
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