diff mbox series

[v2,04/10] MIPS: Fix set_uncached_handler for ebase in XKPHYS

Message ID 20231027221106.405666-5-jiaxun.yang@flygoat.com (mailing list archive)
State Superseded
Headers show
Series MIPS: Fix kernel in XKPHYS | expand

Commit Message

Jiaxun Yang Oct. 27, 2023, 10:11 p.m. UTC 
ebase may be in XKPHYS if memblock unable to allocate memory
within KSEG0 physical range.

To map ebase into uncached space we just convert it back to
physical address and then use platform's TO_UNCAC helper
to create 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: Gregory CLEMENT <gregory.clement@bootlin.com>
Signed-off-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
---
 arch/mips/kernel/traps.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/arch/mips/kernel/traps.c b/arch/mips/kernel/traps.c
index 60c513c51684..230728d76d11 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);