lkml.org 
[lkml]   [2021]   [Apr]   [8]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH v2 4/9] powerpc/mem: Call flush_coherent_icache() at higher level
Date
flush_coherent_icache() doesn't need the address anymore,
so it can be called immediately when entering the public
functions and doesn't need to be disseminated among
lower level functions.

And use page_to_phys() instead of open coding the calculation
of phys address to call flush_dcache_icache_phys().

Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
---
arch/powerpc/mm/cacheflush.c | 11 +++--------
1 file changed, 3 insertions(+), 8 deletions(-)

diff --git a/arch/powerpc/mm/cacheflush.c b/arch/powerpc/mm/cacheflush.c
index dc2d39da6f63..811045c50d82 100644
--- a/arch/powerpc/mm/cacheflush.c
+++ b/arch/powerpc/mm/cacheflush.c
@@ -143,9 +143,6 @@ static void __flush_dcache_icache(void *p)
{
unsigned long addr = (unsigned long)p;

- if (flush_coherent_icache())
- return;
-
clean_dcache_range(addr, addr + PAGE_SIZE);

/*
@@ -182,6 +179,8 @@ static void flush_dcache_icache_hugepage(struct page *page)

void flush_dcache_icache_page(struct page *page)
{
+ if (flush_coherent_icache())
+ return;

if (PageCompound(page))
return flush_dcache_icache_hugepage(page);
@@ -195,11 +194,7 @@ void flush_dcache_icache_page(struct page *page)
__flush_dcache_icache(start);
kunmap_atomic(start);
} else {
- unsigned long addr = page_to_pfn(page) << PAGE_SHIFT;
-
- if (flush_coherent_icache())
- return;
- flush_dcache_icache_phys(addr);
+ flush_dcache_icache_phys(page_to_phys(page));
}
#endif
}
--
2.25.0
\
 
 \ /
  Last update: 2021-04-08 17:31    [W:0.075 / U:0.028 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site