From 1b52f2d5679db90166ea71382211f3c7319aab51 Mon Sep 17 00:00:00 2001 From: =?utf8?q?Christian=20K=C3=B6nig?= Date: Wed, 30 Jan 2019 14:09:29 +0100 Subject: [PATCH] drm/amdgpu: cleanup VM dw estimation a bit MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit No functional change. Signed-off-by: Christian König Reviewed-by: Felix Kuehling Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c | 16 ++++++++-------- 1 file changed, 8 insertions(+), 8 deletions(-) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c index 93b936f..1e3a36c 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c @@ -1806,13 +1806,12 @@ static int amdgpu_vm_bo_update_mapping(struct amdgpu_device *adev, /* * reserve space for two commands every (1 << BLOCK_SIZE) * entries or 2k dwords (whatever is smaller) - * - * The second command is for the shadow pagetables. */ + ncmds = ((nptes >> min(adev->vm_manager.block_size, 11u)) + 1); + + /* The second command is for the shadow pagetables. */ if (vm->root.base.bo->shadow) - ncmds = ((nptes >> min(adev->vm_manager.block_size, 11u)) + 1) * 2; - else - ncmds = ((nptes >> min(adev->vm_manager.block_size, 11u)) + 1); + ncmds *= 2; /* padding, etc. */ ndw = 64; @@ -1831,10 +1830,11 @@ static int amdgpu_vm_bo_update_mapping(struct amdgpu_device *adev, ndw += ncmds * 10; /* extra commands for begin/end fragments */ + ncmds = 2 * adev->vm_manager.fragment_size; if (vm->root.base.bo->shadow) - ndw += 2 * 10 * adev->vm_manager.fragment_size * 2; - else - ndw += 2 * 10 * adev->vm_manager.fragment_size; + ncmds *= 2; + + ndw += 10 * ncmds; params.func = amdgpu_vm_do_set_ptes; } -- 2.7.4