From 2dcfd29861f2c5dc75cff988e7d950e15aad9da2 Mon Sep 17 00:00:00 2001 From: Debarshi Dutta Date: Fri, 1 Sep 2017 10:14:59 +0530 Subject: gpu: nvgpu: NVGPU abstraction for ACCESS_ONCE Construct a wrapper macro NV_ACCESS_ONCE(x) which uses OS specific versions of ACCESS_ONCE. e.g for linux, ACCESS_ONCE(x) is used. Jira NVGPU-125 Change-Id: Ia5c67baae111c1a7978c530bf279715fc808287d Signed-off-by: Debarshi Dutta Reviewed-on: https://git-master.nvidia.com/r/1549928 Reviewed-by: svc-mobile-coverity Reviewed-by: svccoveritychecker Reviewed-by: Automatic_Commit_Validation_User GVS: Gerrit_Virtual_Submit Reviewed-by: Terje Bergstrom --- drivers/gpu/nvgpu/include/nvgpu/barrier.h | 2 ++ drivers/gpu/nvgpu/include/nvgpu/linux/barrier.h | 2 ++ 2 files changed, 4 insertions(+) (limited to 'drivers/gpu/nvgpu/include') diff --git a/drivers/gpu/nvgpu/include/nvgpu/barrier.h b/drivers/gpu/nvgpu/include/nvgpu/barrier.h index 26eec3ed..01d8a9cf 100644 --- a/drivers/gpu/nvgpu/include/nvgpu/barrier.h +++ b/drivers/gpu/nvgpu/include/nvgpu/barrier.h @@ -37,4 +37,6 @@ #define nvgpu_read_barrier_depends() __nvgpu_read_barrier_depends() #define nvgpu_smp_read_barrier_depends() __nvgpu_smp_read_barrier_depends() +#define NV_ACCESS_ONCE(x) __NV_ACCESS_ONCE(x) + #endif /* __NVGPU_BARRIER_H__ */ diff --git a/drivers/gpu/nvgpu/include/nvgpu/linux/barrier.h b/drivers/gpu/nvgpu/include/nvgpu/linux/barrier.h index e7b83ee8..b20f9462 100644 --- a/drivers/gpu/nvgpu/include/nvgpu/linux/barrier.h +++ b/drivers/gpu/nvgpu/include/nvgpu/linux/barrier.h @@ -30,4 +30,6 @@ #define __nvgpu_read_barrier_depends() read_barrier_depends() #define __nvgpu_smp_read_barrier_depends() smp_read_barrier_depends() +#define __NV_ACCESS_ONCE(x) ACCESS_ONCE(x) + #endif /* __NVGPU_BARRIER_LINUX_H__ */ -- cgit v1.2.2