From: Christoph Hellwig <hch@lst.de>
To: Palmer Dabbelt <palmer@sifive.com>,
Paul Walmsley <paul.walmsley@sifive.com>
Cc: linux-riscv@lists.infradead.org
Subject: [PATCH 2/8] riscv: remove SYS_RISCV_FLUSH_ICACHE_LOCAL #define
Date: Thu, 22 Aug 2019 15:56:06 +0900 [thread overview]
Message-ID: <20190822065612.28634-3-hch@lst.de> (raw)
In-Reply-To: <20190822065612.28634-1-hch@lst.de>
It is much better to just check for the supporte flags directly rather than
hiding them behind a flag.
Signed-off-by: Christoph Hellwig <hch@lst.de>
---
arch/riscv/include/asm/cacheflush.h | 1 -
arch/riscv/kernel/sys_riscv.c | 2 +-
2 files changed, 1 insertion(+), 2 deletions(-)
diff --git a/arch/riscv/include/asm/cacheflush.h b/arch/riscv/include/asm/cacheflush.h
index 555b20b11dc3..c8f159740c38 100644
--- a/arch/riscv/include/asm/cacheflush.h
+++ b/arch/riscv/include/asm/cacheflush.h
@@ -103,6 +103,5 @@ void flush_icache_mm(struct mm_struct *mm, bool local);
* Bits in sys_riscv_flush_icache()'s flags argument.
*/
#define SYS_RISCV_FLUSH_ICACHE_LOCAL 1UL
-#define SYS_RISCV_FLUSH_ICACHE_ALL (SYS_RISCV_FLUSH_ICACHE_LOCAL)
#endif /* _ASM_RISCV_CACHEFLUSH_H */
diff --git a/arch/riscv/kernel/sys_riscv.c b/arch/riscv/kernel/sys_riscv.c
index 61f100acbd4c..5bad71078b61 100644
--- a/arch/riscv/kernel/sys_riscv.c
+++ b/arch/riscv/kernel/sys_riscv.c
@@ -58,7 +58,7 @@ SYSCALL_DEFINE3(riscv_flush_icache, uintptr_t, start, uintptr_t, end,
unsigned long, flags)
{
/* Check the reserved flags. */
- if (unlikely(flags & ~SYS_RISCV_FLUSH_ICACHE_ALL))
+ if (unlikely(flags & ~SYS_RISCV_FLUSH_ICACHE_LOCAL))
return -EINVAL;
flush_icache_mm(current->mm, flags & SYS_RISCV_FLUSH_ICACHE_LOCAL);
--
2.20.1
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next prev parent reply other threads:[~2019-08-22 6:56 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-08-22 6:56 sys_riscv_flush_icache Christoph Hellwig
2019-08-22 6:56 ` [PATCH 1/8] riscv: fix the flags argument type for riscv_riscv_flush_icache Christoph Hellwig
2019-08-22 6:56 ` Christoph Hellwig [this message]
2019-08-22 6:56 ` [PATCH 3/8] riscv: move sys_riscv_flush_icache to cacheflush.c Christoph Hellwig
2019-08-22 6:56 ` [PATCH 4/8] riscv: remove the active_mm check in sys_riscv_flush_icache Christoph Hellwig
2019-08-22 6:56 ` [PATCH 5/8] riscv: actually clear icache_stale_mask for all harts in mm_cpumask Christoph Hellwig
2019-08-22 18:29 ` Atish Patra
2019-08-26 11:41 ` hch
2019-08-22 6:56 ` [PATCH 6/8] riscv: use get_cpu and put_cpu in sys_riscv_flush_icache Christoph Hellwig
2019-08-22 17:49 ` Atish Patra
2019-08-26 11:38 ` hch
2019-08-27 18:42 ` Atish Patra
2019-08-22 6:56 ` [PATCH 7/8] riscv: improve the local flushing logic " Christoph Hellwig
2019-08-22 17:34 ` Atish Patra
2019-08-26 11:36 ` hch
2019-08-22 6:56 ` [PATCH 8/8] riscv: ignore the SYS_RISCV_FLUSH_ICACHE_LOCAL flag Christoph Hellwig
2019-08-28 1:10 ` Palmer Dabbelt
2019-08-28 6:09 ` Christoph Hellwig
2019-09-03 18:46 ` Palmer Dabbelt
2019-09-06 17:07 ` Christoph Hellwig
2019-09-13 19:44 ` Palmer Dabbelt
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