From a8bd154f7907c7054f8668c5995c1b5a7f748edc Mon Sep 17 00:00:00 2001 From: Alex Waterman Date: Tue, 17 Oct 2017 15:54:31 -0700 Subject: gpu: nvgpu: Remove user_mapped from mapped_buf Remove the always true field 'user_mapped' from the mapped_buf struct. All mapped_bufs are mapped by a user request since they always originate from a dma_buf (for Linux, that is). As such there is a fair amount of logic that could be deleted. Linux specific: the own_mem_ref field was also be deleted. The logic of only storing a dma_buf ref when the buffer is mapped for the first time by a user is easy: when the mapped buffer is found in the map cache release the outstanding dma_buf ref taken earlier on in the map path. If the map cache does not have the buffer simply let the higher level map code keep the dma_buf ref. The dma_buf ref is released when the nvgpu_vm_unmap_system() call-back is called by the unmap path. JIRA NVGPU-30 JIRA NVGPU-71 Change-Id: I229d136713812a7332bdadd5ebacd85d983bbbf0 Signed-off-by: Alex Waterman Reviewed-on: https://git-master.nvidia.com/r/1583983 Reviewed-by: Automatic_Commit_Validation_User GVS: Gerrit_Virtual_Submit Reviewed-by: Terje Bergstrom Reviewed-by: mobile promotions Tested-by: mobile promotions --- drivers/gpu/nvgpu/common/linux/cde.c | 1 - 1 file changed, 1 deletion(-) (limited to 'drivers/gpu/nvgpu/common/linux/cde.c') diff --git a/drivers/gpu/nvgpu/common/linux/cde.c b/drivers/gpu/nvgpu/common/linux/cde.c index 2f2e886f..6600fe42 100644 --- a/drivers/gpu/nvgpu/common/linux/cde.c +++ b/drivers/gpu/nvgpu/common/linux/cde.c @@ -1050,7 +1050,6 @@ __releases(&l->cde_app->mutex) NVGPU_AS_MAP_BUFFER_FLAGS_DIRECT_KIND_CTRL, NV_KIND_INVALID, compbits_kind, /* incompressible kind */ - true, gk20a_mem_flag_none, map_offset, map_size, NULL); -- cgit v1.2.2