From 5486503343ca9db24d7ce4acd4f7cf22e1f515f2 Mon Sep 17 00:00:00 2001 From: Terje Bergstrom Date: Tue, 31 Mar 2015 13:20:51 -0700 Subject: gpu: nvgpu: Align VA of compressible buffer Ensure that the GPU VA for a buffer is aligned correctly if compression is enabled. Bug 1605769 Change-Id: I12566ddd554da7cc9fb41dd553576c534ac96ba8 Signed-off-by: Terje Bergstrom Reviewed-on: http://git-master/r/725767 Reviewed-on: http://git-master/r/737529 Reviewed-by: Alexander Van Brunt Tested-by: Alexander Van Brunt Reviewed-by: Automatic_Commit_Validation_User --- drivers/gpu/nvgpu/gk20a/mm_gk20a.c | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'drivers/gpu') diff --git a/drivers/gpu/nvgpu/gk20a/mm_gk20a.c b/drivers/gpu/nvgpu/gk20a/mm_gk20a.c index 45f6fd64..fa84337b 100644 --- a/drivers/gpu/nvgpu/gk20a/mm_gk20a.c +++ b/drivers/gpu/nvgpu/gk20a/mm_gk20a.c @@ -1378,6 +1378,11 @@ u64 gk20a_vm_map(struct vm_gk20a *vm, gk20a_get_comptags(d, dmabuf, &comptags); + /* ensure alignment to compression page size if compression enabled */ + if (bfr.ctag_offset) + mapping_size = ALIGN(mapping_size, + g->ops.fb.compression_page_size(g)); + if (bfr.ctag_lines && !comptags.lines) { /* allocate compression resources if needed */ err = gk20a_alloc_comptags(d, dmabuf, ctag_allocator, -- cgit v1.2.2