git: 567ee6830d8d - stable/13 - linuxkpi: Add arch_io_{reserve,free}_memtype_wc

The branch stable/13 has been updated by manu:

URL: https://cgit.FreeBSD.org/src/commit/?id=567ee6830d8d79a9a537b9cd0e4ac08817592019

commit 567ee6830d8d79a9a537b9cd0e4ac08817592019
Author:     Emmanuel Vadot <manu@FreeBSD.org>
AuthorDate: 2022-08-02 08:27:00 +0000
Commit:     Emmanuel Vadot <manu@FreeBSD.org>
CommitDate: 2022-09-07 15:09:04 +0000

    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
    
    (cherry picked from commit 789dbdbb485749340110be550a03c6df22bc9c9c)
---
 sys/compat/linuxkpi/common/include/linux/io.h | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/sys/compat/linuxkpi/common/include/linux/io.h b/sys/compat/linuxkpi/common/include/linux/io.h
index d2ebf7e328cf..5c3e4bec5484 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.
@@ -490,4 +491,19 @@ 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_ */