diff options
Diffstat (limited to 'sys/compat/linuxkpi/common/include/linux/io.h')
| -rw-r--r-- | sys/compat/linuxkpi/common/include/linux/io.h | 9 |
1 files changed, 4 insertions, 5 deletions
diff --git a/sys/compat/linuxkpi/common/include/linux/io.h b/sys/compat/linuxkpi/common/include/linux/io.h index bce70ed0cb8d..164347dbc4e7 100644 --- a/sys/compat/linuxkpi/common/include/linux/io.h +++ b/sys/compat/linuxkpi/common/include/linux/io.h @@ -541,30 +541,29 @@ void lkpi_arch_phys_wc_del(int); #define arch_phys_wc_index(x) \ (((x) < __MTRR_ID_BASE) ? -1 : ((x) - __MTRR_ID_BASE)) -#if defined(__amd64__) || defined(__i386__) || defined(__aarch64__) || defined(__powerpc__) || defined(__riscv) static inline int arch_io_reserve_memtype_wc(resource_size_t start, resource_size_t size) { +#if defined(__amd64__) vm_offset_t va; va = PHYS_TO_DMAP(start); - -#ifdef VM_MEMATTR_WRITE_COMBINING return (-pmap_change_attr(va, size, VM_MEMATTR_WRITE_COMBINING)); #else - return (-pmap_change_attr(va, size, VM_MEMATTR_UNCACHEABLE)); + return (0); #endif } static inline void arch_io_free_memtype_wc(resource_size_t start, resource_size_t size) { +#if defined(__amd64__) vm_offset_t va; va = PHYS_TO_DMAP(start); pmap_change_attr(va, size, VM_MEMATTR_WRITE_BACK); -} #endif +} #endif /* _LINUXKPI_LINUX_IO_H_ */ |