From mboxrd@z Thu Jan 1 00:00:00 1970 From: Christoph Hellwig Subject: [PATCH 10/29] c6x: use asm-generic/cacheflush.h Date: Fri, 15 May 2020 16:36:27 +0200 Message-ID: <20200515143646.3857579-11-hch@lst.de> References: <20200515143646.3857579-1-hch@lst.de> Mime-Version: 1.0 Content-Transfer-Encoding: 8bit Return-path: In-Reply-To: <20200515143646.3857579-1-hch@lst.de> Sender: linux-kernel-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 C6x needs almost no cache flushing routines of its own. Rely on asm-generic/cacheflush.h for the defaults. Signed-off-by: Christoph Hellwig --- arch/c6x/include/asm/cacheflush.h | 19 +------------------ 1 file changed, 1 insertion(+), 18 deletions(-) diff --git a/arch/c6x/include/asm/cacheflush.h b/arch/c6x/include/asm/cacheflush.h index 4540b40475e6c..10922d528de6d 100644 --- a/arch/c6x/include/asm/cacheflush.h +++ b/arch/c6x/include/asm/cacheflush.h @@ -16,21 +16,6 @@ #include #include -/* - * virtually-indexed cache management (our cache is physically indexed) - */ -#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(mm, start, end) do {} while (0) -#define flush_cache_page(vma, vmaddr, pfn) 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 0 -#define flush_dcache_page(page) do {} while (0) -#define flush_dcache_mmap_lock(mapping) do {} while (0) -#define flush_dcache_mmap_unlock(mapping) do {} while (0) - /* * physically-indexed cache management */ @@ -49,14 +34,12 @@ do { \ (unsigned long) page_address(page) + PAGE_SIZE)); \ } while (0) - #define copy_to_user_page(vma, page, vaddr, dst, src, len) \ do { \ memcpy(dst, src, len); \ flush_icache_range((unsigned) (dst), (unsigned) (dst) + (len)); \ } while (0) -#define copy_from_user_page(vma, page, vaddr, dst, src, len) \ - memcpy(dst, src, len) +#include #endif /* _ASM_C6X_CACHEFLUSH_H */ -- 2.26.2 From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: From: Christoph Hellwig Subject: [PATCH 10/29] c6x: use asm-generic/cacheflush.h Date: Fri, 15 May 2020 16:36:27 +0200 Message-ID: <20200515143646.3857579-11-hch@lst.de> In-Reply-To: <20200515143646.3857579-1-hch@lst.de> References: <20200515143646.3857579-1-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: <20200515143627.gHyZFo7UnKTVGQp-98-c_6C-psnDFsyS5I-gpHatnJ8@z> C6x needs almost no cache flushing routines of its own. Rely on asm-generic/cacheflush.h for the defaults. Signed-off-by: Christoph Hellwig --- arch/c6x/include/asm/cacheflush.h | 19 +------------------ 1 file changed, 1 insertion(+), 18 deletions(-) diff --git a/arch/c6x/include/asm/cacheflush.h b/arch/c6x/include/asm/cac= heflush.h index 4540b40475e6c..10922d528de6d 100644 --- a/arch/c6x/include/asm/cacheflush.h +++ b/arch/c6x/include/asm/cacheflush.h @@ -16,21 +16,6 @@ #include #include =20 -/* - * virtually-indexed cache management (our cache is physically indexed) - */ -#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(mm, start, end) do {} while (0) -#define flush_cache_page(vma, vmaddr, pfn) 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 0 -#define flush_dcache_page(page) do {} while (0) -#define flush_dcache_mmap_lock(mapping) do {} while (0) -#define flush_dcache_mmap_unlock(mapping) do {} while (0) - /* * physically-indexed cache management */ @@ -49,14 +34,12 @@ do { \ (unsigned long) page_address(page) + PAGE_SIZE)); \ } while (0) =20 - #define copy_to_user_page(vma, page, vaddr, dst, src, len) \ do { \ memcpy(dst, src, len); \ flush_icache_range((unsigned) (dst), (unsigned) (dst) + (len)); \ } while (0) =20 -#define copy_from_user_page(vma, page, vaddr, dst, src, len) \ - memcpy(dst, src, len) +#include =20 #endif /* _ASM_C6X_CACHEFLUSH_H */ --=20 2.26.2