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nvme: Use kernel private memory barriers 

Change-Id: I1747de7afb2a5b2ec845c1c14f013dbcb9bd72f8
Reviewed-on: https://review.haiku-os.org/c/1528
Reviewed-by: Alex von Gluck IV <kallisti5@unixzen.com>
Reviewed-by: Adrien Destugues <pulkomandy@gmail.com>
Reviewed-by: Axel Dörfler <axeld@pinc-software.de>
This commit is contained in:
Alexander von Gluck IV 2019-06-20 12:05:40 -05:00 committed by Alex von Gluck IV
parent b313d63eae
commit 650c8b81a2
1 changed files with 5 additions and 9 deletions
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14
src/add-ons/kernel/drivers/disk/nvme/compat/nvme_arch.h
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@ -8,27 +8,23 @@
#ifndef __NVME_ARCH_H__
#define __NVME_ARCH_H__
#include <OS.h>
#include <arch_vm.h>
#include <arch_atomic.h>
#define NVME_ARCH_64 __HAIKU_ARCH_64_BIT
#define NVME_MMIO_64BIT NVME_ARCH_64
#define PAGE_SIZE B_PAGE_SIZE
#define PAGE_SHIFT (12) // FIXME: values for other arches
#ifndef asm
#define asm __asm__
#endif
#if defined(__i386__) || defined(__amd64__)
#define nvme_wmb() __asm__ volatile("sfence" ::: "memory")
#elif defined(__ARM__)
#define nvme_wmb() __asm__ volatile("mcr p15, 0, %0, c7, c10, 5" :: "r" (0) : "memory")
#else
#warning Implement nvme memory barrier for arch!
#define nvme_wmb() __asm__ volatile("" ::: "memory")
#endif
#define nvme_wmb() memory_write_barrier()
typedef uint8 __u8;