From 6a7f76e70fac0b1d41e7c5e193c33b1ee7e902c6 Mon Sep 17 00:00:00 2001 From: Christian König Date: Wed, 24 Aug 2016 15:51:49 +0200 Subject: drm/amdgpu: add VRAM manager v2 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Split VRAM allocations into 4MB blocks. v2: fix typo in comment, some suggested cleanups v3: document how to disable the feature, fix rebase issue Signed-off-by: Christian König Reviewed-by: Edward O'Callaghan Tested-by: Mike Lothian Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 7 +++++++ 1 file changed, 7 insertions(+) (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_device.c') diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c index 246bbd1ab5ec..9df66d1e843d 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c @@ -1052,6 +1052,13 @@ static void amdgpu_check_arguments(struct amdgpu_device *adev) amdgpu_vm_block_size); amdgpu_vm_block_size = 9; } + + if ((amdgpu_vram_page_split != -1 && amdgpu_vram_page_split < 16) || + !amdgpu_check_pot_argument(amdgpu_vram_page_split)) { + dev_warn(adev->dev, "invalid VRAM page split (%d)\n", + amdgpu_vram_page_split); + amdgpu_vram_page_split = 1024; + } } /** -- cgit