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| author | Jessica Clarke <jrtc27@FreeBSD.org> | 2021-10-03 18:34:40 +0000 |
|---|---|---|
| committer | Jessica Clarke <jrtc27@FreeBSD.org> | 2021-10-03 18:34:40 +0000 |
| commit | 8167c92f65bc20145467b3b98c842cde57736900 (patch) | |
| tree | 22a7bace86612d501db1678dcc74d0cb126965f3 /sys/compat/linuxkpi/common/include/linux/io.h | |
| parent | 7047568821a9019359a8518e1f1481f73d6e5445 (diff) | |
| download | src-8167c92f65bc20145467b3b98c842cde57736900.tar.gz src-8167c92f65bc20145467b3b98c842cde57736900.zip | |
LinuxKPI: Add more #ifdef VM_MEMATTR_WRITE_COMBINING guards
One of the three uses is already guarded; this guards the remaining ones
to support architectures like riscv that do not provide write-combining,
and is needed to build drm-kmod on riscv.
Reviewed by: hselasky, manu
MFC after: 1 week
Differential Revision: https://reviews.freebsd.org/D31999
Diffstat (limited to 'sys/compat/linuxkpi/common/include/linux/io.h')
| -rw-r--r-- | sys/compat/linuxkpi/common/include/linux/io.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/sys/compat/linuxkpi/common/include/linux/io.h b/sys/compat/linuxkpi/common/include/linux/io.h index 0104eea90ace..074417b892f9 100644 --- a/sys/compat/linuxkpi/common/include/linux/io.h +++ b/sys/compat/linuxkpi/common/include/linux/io.h @@ -411,8 +411,12 @@ void *_ioremap_attr(vm_paddr_t phys_addr, unsigned long size, int attr); #define ioremap(addr, size) \ _ioremap_attr((addr), (size), VM_MEMATTR_UNCACHEABLE) #endif +#ifdef VM_MEMATTR_WRITE_COMBINING #define ioremap_wc(addr, size) \ _ioremap_attr((addr), (size), VM_MEMATTR_WRITE_COMBINING) +#else +#define ioremap_wc(addr, size) ioremap_nocache(addr, size) +#endif #define ioremap_wb(addr, size) \ _ioremap_attr((addr), (size), VM_MEMATTR_WRITE_BACK) void iounmap(void *addr); |