diff options
| author | Emmanuel Vadot <manu@FreeBSD.org> | 2022-08-02 08:27:00 +0000 |
|---|---|---|
| committer | Emmanuel Vadot <manu@FreeBSD.org> | 2022-08-08 13:22:36 +0000 |
| commit | 789dbdbb485749340110be550a03c6df22bc9c9c (patch) | |
| tree | 5da54d8c2533326f0b3020cb713fe6a0f1068253 | |
| parent | a7727e1a6d5d6120d439af222f58345b4932100c (diff) | |
| download | src-789dbdbb485749340110be550a03c6df22bc9c9c.tar.gz src-789dbdbb485749340110be550a03c6df22bc9c9c.zip | |
linuxkpi: Add arch_io_{reserve,free}_memtype_wc
Reviewed by: hselasky
Obtained from: drm-kmod
Sponsored by: Beckhoff Automation GmbH & Co. KG
Differential Revision: https://reviews.freebsd.org/D36022
| -rw-r--r-- | sys/compat/linuxkpi/common/include/linux/io.h | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/sys/compat/linuxkpi/common/include/linux/io.h b/sys/compat/linuxkpi/common/include/linux/io.h index 0790e518a1a3..32183707c255 100644 --- a/sys/compat/linuxkpi/common/include/linux/io.h +++ b/sys/compat/linuxkpi/common/include/linux/io.h @@ -38,6 +38,7 @@ #include <linux/compiler.h> #include <linux/types.h> +#include <asm/set_memory.h> /* * XXX This is all x86 specific. It should be bus space access. @@ -494,4 +495,19 @@ 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) +{ + + return (set_memory_wc(start, size >> PAGE_SHIFT)); +} + +static inline void +arch_io_free_memtype_wc(resource_size_t start, resource_size_t size) +{ + set_memory_wb(start, size >> PAGE_SHIFT); +} +#endif + #endif /* _LINUXKPI_LINUX_IO_H_ */ |