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dde_linux: add dma_wmb/rmb barriers for arm_v7 

and remove re-defined dma_wmb in fec driver
This commit is contained in:
Alexander Boettcher 2020-01-09 13:46:01 +01:00 committed by Christian Helmuth
parent bd284347da
commit 6506240642
2 changed files with 2 additions and 4 deletions
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2
repos/dde_linux/src/drivers/nic/fec/lx_emul.h
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@ -1933,8 +1933,6 @@ void *devm_kzalloc(struct device *dev, size_t size, gfp_t gfp);
struct pm_qos_request {};
#define dma_wmb() __asm__ __volatile__ ("dmb oshst" : : : "memory")
#include <lx_emul/extern_c_end.h>
#endif /* _SRC__DRIVERS__NIC__FEC__LX_EMUL_H_ */

4
repos/dde_linux/src/include/spec/arm_v7/lx_emul/barrier.h
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@ -19,8 +19,8 @@
#define rmb() mb()
#define wmb() asm volatile ("dsb st": : :"memory")
#define dma_wmb() barrier()
#define dma_rmb() barrier()
#define dma_wmb() asm volatile ("dmb oshst": : : "memory")
#define dma_rmb() asm volatile ("dmb osh": : : "memory")
/*
* This is the "safe" implementation as needed for a configuration