From: Christoph Hellwig <hch@lst.de>
To: Andrew Morton <akpm@linux-foundation.org>,
Arnd Bergmann <arnd@arndb.de>,
Roman Zippel <zippel@linux-m68k.org>
Cc: Jessica Yu <jeyu@kernel.org>, Michal Simek <monstr@monstr.eu>,
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
Subject: [PATCH 12/31] c6x: use asm-generic/cacheflush.h
Date: Sun, 10 May 2020 09:54:51 +0200 [thread overview]
Message-ID: <20200510075510.987823-13-hch@lst.de> (raw)
In-Reply-To: <20200510075510.987823-1-hch@lst.de>
C6x needs almost no cache flushing routines of its own. Rely on
asm-generic/cacheflush.h for the defaults.
Signed-off-by: Christoph Hellwig <hch@lst.de>
---
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 <asm/page.h>
#include <asm/string.h>
-/*
- * 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 <asm-generic/cacheflush.h>
#endif /* _ASM_C6X_CACHEFLUSH_H */
--
2.26.2
next prev parent reply other threads:[~2020-05-10 7:56 UTC|newest]
Thread overview: 50+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-05-10 7:54 sort out the flush_icache_range mess Christoph Hellwig
2020-05-10 7:54 ` [PATCH 01/31] arm: fix the flush_icache_range arguments in set_fiq_handler Christoph Hellwig
2020-05-10 7:54 ` [PATCH 02/31] arm64: fix the flush_icache_range arguments in machine_kexec Christoph Hellwig
2020-05-11 7:51 ` Will Deacon
2020-05-11 11:00 ` Catalin Marinas
2020-05-11 15:15 ` Christoph Hellwig
2020-05-10 7:54 ` [PATCH 03/31] MIPS: unexport __flush_icache_user_range Christoph Hellwig
2020-05-11 16:01 ` Thomas Bogendoerfer
2020-05-10 7:54 ` [PATCH 04/31] nds32: unexport flush_icache_page Christoph Hellwig
2020-05-10 7:54 ` [PATCH 05/31] powerpc: unexport flush_icache_user_range Christoph Hellwig
2020-05-10 7:54 ` [PATCH 06/31] unicore32: remove flush_cache_user_range Christoph Hellwig
2020-05-10 7:54 ` [PATCH 07/31] asm-generic: fix the inclusion guards for cacheflush.h Christoph Hellwig
2020-05-10 7:54 ` [PATCH 08/31] asm-generic: don't include <linux/mm.h> in cacheflush.h Christoph Hellwig
2020-05-10 7:54 ` [PATCH 09/31] asm-generic: improve the flush_dcache_page stub Christoph Hellwig
2020-05-10 7:54 ` [PATCH 10/31] alpha: use asm-generic/cacheflush.h Christoph Hellwig
2020-05-10 7:54 ` [PATCH 11/31] arm64: " Christoph Hellwig
2020-05-10 7:54 ` Christoph Hellwig [this message]
2020-05-10 7:54 ` [PATCH 13/31] hexagon: " Christoph Hellwig
2020-05-10 7:54 ` [PATCH 14/31] ia64: " Christoph Hellwig
2020-05-10 7:54 ` [PATCH 15/31] microblaze: " Christoph Hellwig
2020-05-10 7:54 ` [PATCH 16/31] m68knommu: " Christoph Hellwig
2020-05-12 14:44 ` Greg Ungerer
2020-05-10 7:54 ` [PATCH 17/31] openrisc: " Christoph Hellwig
2020-05-10 7:54 ` [PATCH 18/31] powerpc: " Christoph Hellwig
2020-05-10 7:54 ` [PATCH 19/31] riscv: " Christoph Hellwig
2020-05-12 23:00 ` Palmer Dabbelt
2020-05-13 6:23 ` Christoph Hellwig
2020-05-10 7:54 ` [PATCH 20/31] arm,sparc,unicore32: remove flush_icache_user_range Christoph Hellwig
2020-05-10 7:55 ` [PATCH 21/31] mm: rename flush_icache_user_range to flush_icache_user_page Christoph Hellwig
2020-05-11 7:36 ` Geert Uytterhoeven
2020-05-10 7:55 ` [PATCH 22/31] asm-generic: add a flush_icache_user_range stub Christoph Hellwig
2020-05-10 7:55 ` [PATCH 23/31] sh: implement flush_icache_user_range Christoph Hellwig
2020-05-10 7:55 ` [PATCH 24/31] xtensa: " Christoph Hellwig
2020-05-10 7:55 ` [PATCH 25/31] arm: rename flush_cache_user_range to flush_icache_user_range Christoph Hellwig
2020-05-10 7:55 ` [PATCH 26/31] m68k: implement flush_icache_user_range Christoph Hellwig
2020-05-11 7:38 ` Geert Uytterhoeven
2020-05-10 7:55 ` [PATCH 27/31] exec: only build read_code when needed Christoph Hellwig
2020-05-10 7:55 ` [PATCH 28/31] exec: use flush_icache_user_range in read_code Christoph Hellwig
2020-05-10 7:55 ` [PATCH 29/31] binfmt_flat: use flush_icache_user_range Christoph Hellwig
2020-05-12 14:46 ` Greg Ungerer
2020-05-10 7:55 ` [PATCH 30/31] nommu: use flush_icache_user_range in brk and mmap Christoph Hellwig
2020-05-10 7:55 ` [PATCH 31/31] module: move the set_fs hack for flush_icache_range to m68k Christoph Hellwig
2020-05-11 7:40 ` Geert Uytterhoeven
2020-05-11 15:11 ` Christoph Hellwig
2020-05-11 15:24 ` Geert Uytterhoeven
2020-05-11 16:37 ` Christoph Hellwig
2020-05-11 7:46 ` sort out the flush_icache_range mess Geert Uytterhoeven
2020-05-11 15:13 ` Christoph Hellwig
2020-05-11 15:25 ` Geert Uytterhoeven
2020-05-11 16:35 ` Christoph Hellwig
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