From 80ca69f40f26fb016e6d863b48fe1a1abdae8840 Mon Sep 17 00:00:00 2001
From: Markos Chandras <markos.chandras@imgtec.com>
Date: Thu, 16 Jan 2014 13:11:08 +0000
Subject: [PATCH] MIPS: mm: c-r4k: Add support for flushing user pages from
cache
Use the userspace cache flushing functions if the interrupted
process is a userspace one.
Signed-off-by: Markos Chandras <markos.chandras@imgtec.com>
---
arch/mips/mm/c-r4k.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/arch/mips/mm/c-r4k.c b/arch/mips/mm/c-r4k.c
index 6332a9e84f013a..9b223e07f7847b 100644
--- a/arch/mips/mm/c-r4k.c
+++ b/arch/mips/mm/c-r4k.c
@@ -562,7 +562,8 @@ static inline void local_r4k_flush_cache_page(void *args)
}
if (cpu_has_dc_aliases || (exec && !cpu_has_ic_fills_f_dc)) {
- r4k_blast_dcache_page(addr);
+ vaddr ? r4k_blast_dcache_page(addr) :
+ r4k_blast_dcache_user_page(addr);
if (exec && !cpu_icache_snoops_remote_store)
r4k_blast_scache_page(addr);
}
@@ -573,7 +574,8 @@ static inline void local_r4k_flush_cache_page(void *args)
if (cpu_context(cpu, mm) != 0)
drop_mmu_context(mm, cpu);
} else
- r4k_blast_icache_page(addr);
+ vaddr ? r4k_blast_icache_page(addr) :
+ r4k_blast_icache_user_page(addr);
}
if (vaddr) {
--
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