From 5ae60bbbc0ca9b9583d582a6901807dabf23e8e4 Mon Sep 17 00:00:00 2001 From: Shaoyun Liu Date: Thu, 25 May 2017 18:24:00 -0400 Subject: [PATCH 1710/4131] drm/amdgpu: Use mutex on invalidate tlb with MMIO code path for Vega10 Change-Id: I60819c65229d1fe2412e273be0d0951ebed2d815 Signed-off-by: Shaoyun Liu --- drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gfx_v9.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gfx_v9.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gfx_v9.c index 99abdf3..33b4077 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gfx_v9.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gfx_v9.c @@ -920,6 +920,8 @@ static void write_vmid_invalidate_request(struct kgd_dev *kgd, uint8_t vmid) VM_INVALIDATE_ENG16_REQ__INVALIDATE_L2_PDE2_MASK | VM_INVALIDATE_ENG16_REQ__INVALIDATE_L1_PTES_MASK; + mutex_lock(&adev->srbm_mutex); + /* Use light weight invalidation. * * TODO 1: agree on the right set of invalidation registers for -- 2.7.4