From 593c7a3f3027cf95e1b35f9acb8b3d0dc45f24e4 Mon Sep 17 00:00:00 2001 From: Konsta Holtta Date: Fri, 5 Dec 2014 10:56:08 +0200 Subject: gpu: nvgpu: cache cde compbits buf mappings don't unmap compbits_buf explicitly from system vm early but store it in the dmabuf's private data, and unmap it later when all user mappings to that buffer have been disappeared. Bug 1546619 Change-Id: I333235a0ea74c48503608afac31f5e9f1eb4b99b Signed-off-by: Konsta Holtta Reviewed-on: http://git-master/r/661949 (cherry picked from commit ed2177e25d9e5facfb38786b818330798a14b9bb) Reviewed-on: http://git-master/r/661835 Reviewed-by: Terje Bergstrom Tested-by: Terje Bergstrom --- drivers/gpu/nvgpu/gk20a/mm_gk20a.h | 3 +++ 1 file changed, 3 insertions(+) (limited to 'drivers/gpu/nvgpu/gk20a/mm_gk20a.h') diff --git a/drivers/gpu/nvgpu/gk20a/mm_gk20a.h b/drivers/gpu/nvgpu/gk20a/mm_gk20a.h index 42c164be..8f0f736b 100644 --- a/drivers/gpu/nvgpu/gk20a/mm_gk20a.h +++ b/drivers/gpu/nvgpu/gk20a/mm_gk20a.h @@ -554,6 +554,9 @@ void gk20a_deinit_vm(struct vm_gk20a *vm); int gk20a_vm_unmap_buffer(struct vm_gk20a *vm, u64 offset); void gk20a_get_comptags(struct device *dev, struct dma_buf *dmabuf, struct gk20a_comptags *comptags); +u64 gk20a_vm_cde_mapped(struct vm_gk20a *vm, struct dma_buf *dmabuf); +void gk20a_vm_mark_cde_mapped(struct vm_gk20a *vm, struct dma_buf *dmabuf, + u64 map_vaddr); dma_addr_t gk20a_mm_gpuva_to_iova_base(struct vm_gk20a *vm, u64 gpu_vaddr); int gk20a_dmabuf_alloc_drvdata(struct dma_buf *dmabuf, struct device *dev); -- cgit v1.2.2