MIPS: Use C0_KScratch (if present) to hold PGD pointer.

Decide at runtime to use either Context or KScratch to hold the PGD
pointer.

Signed-off-by: David Daney <ddaney@caviumnetworks.com>
To: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/1876/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

1 files changed, 1 insertions, 7 deletions

diff --git a/arch/mips/include/asm/mmu_context.h b/arch/mips/include/asm/mmu_context.h
index d9592733a7ba..73c0d45798de 100644
--- a/arch/mips/include/asm/mmu_context.h
+++ b/arch/mips/include/asm/mmu_context.h
@@ -29,13 +29,7 @@
 #define TLBMISS_HANDLER_SETUP_PGD(pgd)                          \
         tlbmiss_handler_setup_pgd((unsigned long)(pgd))
 
-static inline void tlbmiss_handler_setup_pgd(unsigned long pgd)
-{
-        /* Check for swapper_pg_dir and convert to physical address. */
-        if ((pgd & CKSEG3) == CKSEG0)
-                pgd = CPHYSADDR(pgd);
-        write_c0_context(pgd << 11);
-}
+extern void tlbmiss_handler_setup_pgd(unsigned long pgd);
 
 #define TLBMISS_HANDLER_SETUP()                                         \
         do {                                                            \