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>

diff --git a/arch/mips/mm/c-r4k.c b/arch/mips/mm/c-r4k.c
index 6332a9e..9b223e0 100644 (file)
--- 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) {