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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2020-01-27 13:03:00 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2020-01-27 13:03:00 -0800 |
| commit | 6a1000bd27035bba17ede9dc915166276a811edb (patch) | |
| tree | 92389983cc8bd09ba5b1cdebabfcad882f8ce3f3 /arch/arm/include/asm/io.h | |
| parent | 9dd70e2880b8c8386097de51564c60352b3e4070 (diff) | |
| parent | 4bdc0d676a643140bdf17dbf7eafedee3d496a3c (diff) | |
Merge tag 'ioremap-5.6' of git://git.infradead.org/users/hch/ioremap
Pull ioremap updates from Christoph Hellwig:
"Remove the ioremap_nocache API (plus wrappers) that are always
identical to ioremap"
* tag 'ioremap-5.6' of git://git.infradead.org/users/hch/ioremap:
remove ioremap_nocache and devm_ioremap_nocache
MIPS: define ioremap_nocache to ioremap
Diffstat (limited to 'arch/arm/include/asm/io.h')
| -rw-r--r-- | arch/arm/include/asm/io.h | 8 |
1 files changed, 0 insertions, 8 deletions
diff --git a/arch/arm/include/asm/io.h b/arch/arm/include/asm/io.h index aefdabdbeb84..ab2b654084fa 100644 --- a/arch/arm/include/asm/io.h +++ b/arch/arm/include/asm/io.h @@ -356,7 +356,6 @@ static inline void memcpy_toio(volatile void __iomem *to, const void *from, * * Function Memory type Cacheability Cache hint * ioremap() Device n/a n/a - * ioremap_nocache() Device n/a n/a * ioremap_cache() Normal Writeback Read allocate * ioremap_wc() Normal Non-cacheable n/a * ioremap_wt() Normal Non-cacheable n/a @@ -368,13 +367,6 @@ static inline void memcpy_toio(volatile void __iomem *to, const void *from, * - unaligned accesses are "unpredictable" * - writes may be delayed before they hit the endpoint device * - * ioremap_nocache() is the same as ioremap() as there are too many device - * drivers using this for device registers, and documentation which tells - * people to use it for such for this to be any different. This is not a - * safe fallback for memory-like mappings, or memory regions where the - * compiler may generate unaligned accesses - eg, via inlining its own - * memcpy. - * * All normal memory mappings have the following properties: * - reads can be repeated with no side effects * - repeated reads return the last value written |