lkml.org 
[lkml]   [2023]   [Dec]   [12]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH v5 05/22] MIPS: Fix set_uncached_handler for ebase in XKPHYS
Date
From: Jiaxun Yang <jiaxun.yang@flygoat.com>

ebase might reside in XKPHYS if memblock is unable to allocate memory
within the KSEG0 physical range.

To map EBASE into uncached space, we convert it back to its physical
address and utilize the platform's TO_UNCAC helper for mapping.

Co-developed-by: Vladimir Kondratiev <vladimir.kondratiev@intel.com>
Signed-off-by: Vladimir Kondratiev <vladimir.kondratiev@intel.com>
Co-developed-by: Gregory CLEMENT <gregory.clement@bootlin.com>
Signed-off-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Signed-off-by: Gregory CLEMENT <gregory.clement@bootlin.com>
---
arch/mips/kernel/traps.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/mips/kernel/traps.c b/arch/mips/kernel/traps.c
index 60c513c51684f..230728d76d11f 100644
--- a/arch/mips/kernel/traps.c
+++ b/arch/mips/kernel/traps.c
@@ -2346,7 +2346,7 @@ static const char panic_null_cerr[] =
void set_uncached_handler(unsigned long offset, void *addr,
unsigned long size)
{
- unsigned long uncached_ebase = CKSEG1ADDR(ebase);
+ unsigned long uncached_ebase = TO_UNCAC(__pa(ebase));

if (!addr)
panic(panic_null_cerr);
--
2.42.0
\
 
 \ /
  Last update: 2023-12-12 17:36    [W:0.126 / U:0.192 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site