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gpu: nvgpu: NVGPU abstraction for ACCESS_ONCE

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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 <ddutta@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1549928
Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com>
Reviewed-by: svccoveritychecker <svccoveritychecker@nvidia.com>
Reviewed-by: Automatic_Commit_Validation_User
GVS: Gerrit_Virtual_Submit
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
This commit is contained in:
Debarshi Dutta
2017-09-01 10:14:59 +05:30
committed by mobile promotions
parent 081dc658cb
commit 2dcfd29861
5 changed files with 23 additions and 19 deletions
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2
drivers/gpu/nvgpu/include/nvgpu/barrier.h
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@@ -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__ */

2
drivers/gpu/nvgpu/include/nvgpu/linux/barrier.h
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@@ -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__ */