diff options
author | Dave Airlie <airlied@redhat.com> | 2020-09-08 14:51:10 +1000 |
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committer | Dave Airlie <airlied@redhat.com> | 2020-09-08 14:51:16 +1000 |
commit | 8052ff431a458ede2c17bec6a1717bfe5d600a8b (patch) | |
tree | 6b26c0cdb09da9cd2c3e6022c034d2544f367bdc /drivers/gpu/drm/msm/adreno/a6xx_gpu.c | |
parent | f4d51dffc6c01a9e94650d95ce0104964f8ae822 (diff) | |
parent | f6828e0c4045f03f9cf2df6c2a768102641183f4 (diff) | |
download | linux-8052ff431a458ede2c17bec6a1717bfe5d600a8b.tar.bz2 |
Merge tag 'drm-msm-fixes-2020-09-04' of https://gitlab.freedesktop.org/drm/msm into drm-fixes
A few fixes for a potential RPTR corruption issue.
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Rob Clark <robdclark@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/ <CAF6AEGvnr6Nhz2J0sjv2G+j7iceVtaDiJDT8T88uW6jiBfOGKQ@mail.gmail.com
Diffstat (limited to 'drivers/gpu/drm/msm/adreno/a6xx_gpu.c')
-rw-r--r-- | drivers/gpu/drm/msm/adreno/a6xx_gpu.c | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/drivers/gpu/drm/msm/adreno/a6xx_gpu.c b/drivers/gpu/drm/msm/adreno/a6xx_gpu.c index 3966abd523cc..66a95e22b7b3 100644 --- a/drivers/gpu/drm/msm/adreno/a6xx_gpu.c +++ b/drivers/gpu/drm/msm/adreno/a6xx_gpu.c @@ -678,7 +678,8 @@ static int a6xx_hw_init(struct msm_gpu *gpu) A6XX_PROTECT_RDONLY(0x980, 0x4)); gpu_write(gpu, REG_A6XX_CP_PROTECT(25), A6XX_PROTECT_RW(0xa630, 0x0)); - if (adreno_is_a650(adreno_gpu)) { + /* Enable expanded apriv for targets that support it */ + if (gpu->hw_apriv) { gpu_write(gpu, REG_A6XX_CP_APRIV_CNTL, (1 << 6) | (1 << 5) | (1 << 3) | (1 << 2) | (1 << 1)); } @@ -694,6 +695,13 @@ static int a6xx_hw_init(struct msm_gpu *gpu) if (ret) goto out; + /* Set the ringbuffer address */ + gpu_write64(gpu, REG_A6XX_CP_RB_BASE, REG_A6XX_CP_RB_BASE_HI, + gpu->rb[0]->iova); + + gpu_write(gpu, REG_A6XX_CP_RB_CNTL, + MSM_GPU_RB_CNTL_DEFAULT | AXXX_CP_RB_CNTL_NO_UPDATE); + /* Always come up on rb 0 */ a6xx_gpu->cur_ring = gpu->rb[0]; @@ -1056,6 +1064,9 @@ struct msm_gpu *a6xx_gpu_init(struct drm_device *dev) adreno_gpu->registers = NULL; adreno_gpu->reg_offsets = a6xx_register_offsets; + if (adreno_is_a650(adreno_gpu)) + adreno_gpu->base.hw_apriv = true; + ret = adreno_gpu_init(dev, pdev, adreno_gpu, &funcs, 1); if (ret) { a6xx_destroy(&(a6xx_gpu->base.base)); |