From 90568a2ce58c03f457bdd4fab6675cd327ed13fd Mon Sep 17 00:00:00 2001 From: David Nieto Date: Tue, 18 Apr 2017 21:56:09 -0700 Subject: gpu: nvgpu: allow bind to be interrupted This change solves two problems: (*) the possibility of a crash due to interrupting the gpu initialization following a bind (*) a IOVA memory leak that could prevent the GPU from binding after about 200 bind/unbind cycles A detailed list of fixes: - chek that arbiter is initialized before freeing it. - do not re-enable interrupts when MSI is enabled on unbind. - free the semaphore sea on unbind. - ensure we dont double load the vbios. - check return value of nvgpu_mutex_init for semaphores. - add corresponding nvgpu_mutex_destroy calls. bug 1816516 Change-Id: Ia8af73019e0e1183998855d55bb3eea09672a8b7 Signed-off-by: David Nieto Reviewed-on: http://git-master/r/1465302 Reviewed-by: Alex Waterman Reviewed-by: Thomas Fleury Reviewed-by: David Jarrett Reviewed-on: https://git-master.nvidia.com/r/1563019 Reviewed-by: mobile promotions Tested-by: mobile promotions --- drivers/gpu/nvgpu/include/nvgpu/semaphore.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/gpu/nvgpu/include') diff --git a/drivers/gpu/nvgpu/include/nvgpu/semaphore.h b/drivers/gpu/nvgpu/include/nvgpu/semaphore.h index 5c0019ae..8915b722 100644 --- a/drivers/gpu/nvgpu/include/nvgpu/semaphore.h +++ b/drivers/gpu/nvgpu/include/nvgpu/semaphore.h @@ -160,7 +160,7 @@ struct nvgpu_semaphore_sea { * Semaphore sea functions. */ struct nvgpu_semaphore_sea *nvgpu_semaphore_sea_create(struct gk20a *gk20a); -void gk20a_semaphore_sea_destroy(struct gk20a *g); +void nvgpu_semaphore_sea_destroy(struct gk20a *g); int nvgpu_semaphore_sea_map(struct nvgpu_semaphore_pool *sea, struct vm_gk20a *vm); void nvgpu_semaphore_sea_unmap(struct nvgpu_semaphore_pool *sea, -- cgit v1.2.2