From mboxrd@z Thu Jan 1 00:00:00 1970 From: Christoph Hellwig Subject: [PATCH 14/31] ia64: use asm-generic/cacheflush.h Date: Sun, 10 May 2020 09:54:53 +0200 Message-ID: <20200510075510.987823-15-hch@lst.de> References: <20200510075510.987823-1-hch@lst.de> Mime-Version: 1.0 Content-Transfer-Encoding: 8bit Return-path: In-Reply-To: <20200510075510.987823-1-hch@lst.de> Sender: linux-mips-owner@vger.kernel.org To: Andrew Morton , Arnd Bergmann , Roman Zippel Cc: Jessica Yu , Michal Simek , x86@kernel.org, linux-alpha@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-c6x-dev@linux-c6x.org, linux-hexagon@vger.kernel.org, linux-ia64@vger.kernel.org, linux-m68k@lists.linux-m68k.org, linux-mips@vger.kernel.org, openrisc@lists.librecores.org, linuxppc-dev@lists.ozlabs.org, linux-riscv@lists.infradead.org, linux-sh@vger.kernel.org, sparclinux@vger.kernel.org, linux-arch@vger.kernel.org, linux-mm@kvack.org, linux-um@lists.infradead.org, linux-xtensa@linux-xtensa.org, linux-fsdevel@vger.kernel.org List-Id: linux-arch.vger.kernel.org IA64 needs almost no cache flushing routines of its own. Rely on asm-generic/cacheflush.h for the defaults. Signed-off-by: Christoph Hellwig --- arch/ia64/include/asm/cacheflush.h | 28 +++------------------------- 1 file changed, 3 insertions(+), 25 deletions(-) diff --git a/arch/ia64/include/asm/cacheflush.h b/arch/ia64/include/asm/cacheflush.h index 6d3478f8abc89..a8f1c86ac242a 100644 --- a/arch/ia64/include/asm/cacheflush.h +++ b/arch/ia64/include/asm/cacheflush.h @@ -12,44 +12,22 @@ #include -/* - * Cache flushing routines. This is the kind of stuff that can be very expensive, so try - * to avoid them whenever possible. - */ - -#define flush_cache_all() do { } while (0) -#define flush_cache_mm(mm) do { } while (0) -#define flush_cache_dup_mm(mm) do { } while (0) -#define flush_cache_range(vma, start, end) do { } while (0) -#define flush_cache_page(vma, vmaddr, pfn) do { } while (0) -#define flush_icache_page(vma,page) do { } while (0) -#define flush_cache_vmap(start, end) do { } while (0) -#define flush_cache_vunmap(start, end) do { } while (0) - #define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 1 #define flush_dcache_page(page) \ do { \ clear_bit(PG_arch_1, &(page)->flags); \ } while (0) -#define flush_dcache_mmap_lock(mapping) do { } while (0) -#define flush_dcache_mmap_unlock(mapping) do { } while (0) - -extern void flush_icache_range (unsigned long start, unsigned long end); +extern void flush_icache_range(unsigned long start, unsigned long end); +#define flush_icache_range flush_icache_range extern void clflush_cache_range(void *addr, int size); From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: From: Christoph Hellwig Subject: [PATCH 14/31] ia64: use asm-generic/cacheflush.h Date: Sun, 10 May 2020 09:54:53 +0200 Message-ID: <20200510075510.987823-15-hch@lst.de> In-Reply-To: <20200510075510.987823-1-hch@lst.de> References: <20200510075510.987823-1-hch@lst.de> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Sender: owner-linux-mm@kvack.org To: Andrew Morton , Arnd Bergmann , Roman Zippel Cc: Jessica Yu , Michal Simek , x86@kernel.org, linux-alpha@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-c6x-dev@linux-c6x.org, linux-hexagon@vger.kernel.org, linux-ia64@vger.kernel.org, linux-m68k@lists.linux-m68k.org, linux-mips@vger.kernel.org, openrisc@lists.librecores.org, linuxppc-dev@lists.ozlabs.org, linux-riscv@lists.infradead.org, linux-sh@vger.kernel.org, sparclinux@vger.kernel.org, linux-arch@vger.kernel.org, linux-mm@kvack.org, linux-um@lists.infradead.org, linux-xtensa@linux-xtensa.org, linux-fsdevel@vger.kernel.org List-ID: Message-ID: <20200510075453._XEEdQulrQx0tmkoTbISN4URKJUla_ZKupgyG5qT9dU@z> IA64 needs almost no cache flushing routines of its own. Rely on asm-generic/cacheflush.h for the defaults. Signed-off-by: Christoph Hellwig --- arch/ia64/include/asm/cacheflush.h | 28 +++------------------------- 1 file changed, 3 insertions(+), 25 deletions(-) diff --git a/arch/ia64/include/asm/cacheflush.h b/arch/ia64/include/asm/c= acheflush.h index 6d3478f8abc89..a8f1c86ac242a 100644 --- a/arch/ia64/include/asm/cacheflush.h +++ b/arch/ia64/include/asm/cacheflush.h @@ -12,44 +12,22 @@ =20 #include =20 -/* - * Cache flushing routines. This is the kind of stuff that can be very = expensive, so try - * to avoid them whenever possible. - */ - -#define flush_cache_all() do { } while (0) -#define flush_cache_mm(mm) do { } while (0) -#define flush_cache_dup_mm(mm) do { } while (0) -#define flush_cache_range(vma, start, end) do { } while (0) -#define flush_cache_page(vma, vmaddr, pfn) do { } while (0) -#define flush_icache_page(vma,page) do { } while (0) -#define flush_cache_vmap(start, end) do { } while (0) -#define flush_cache_vunmap(start, end) do { } while (0) - #define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 1 #define flush_dcache_page(page) \ do { \ clear_bit(PG_arch_1, &(page)->flags); \ } while (0) =20 -#define flush_dcache_mmap_lock(mapping) do { } while (0) -#define flush_dcache_mmap_unlock(mapping) do { } while (0) - -extern void flush_icache_range (unsigned long start, unsigned long end); +extern void flush_icache_range(unsigned long start, unsigned long end); +#define flush_icache_range flush_icache_range extern void clflush_cache_range(void *addr, int size); =20 - #define flush_icache_user_range(vma, page, user_addr, len) \ do { \ unsigned long _addr =3D (unsigned long) page_address(page) + ((user_add= r) & ~PAGE_MASK); \ flush_icache_range(_addr, _addr + (len)); \ } while (0) =20 -#define copy_to_user_page(vma, page, vaddr, dst, src, len) \ -do { memcpy(dst, src, len); \ - flush_icache_user_range(vma, page, vaddr, len); \ -} while (0) -#define copy_from_user_page(vma, page, vaddr, dst, src, len) \ - memcpy(dst, src, len) +#include =20 #endif /* _ASM_IA64_CACHEFLUSH_H */ --=20 2.26.2