ARM: pm: preallocate a page table for suspend/resume

Preallocate a page table and setup an identity mapping for the MMU
enable code.  This means we don't have to "borrow" a page table to
do this, avoiding complexities with L2 cache coherency.

Tested-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Tested-by: Shawn Guo <shawn.guo@linaro.org>
Tested-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

1 files changed, 0 insertions, 6 deletions

diff --git a/arch/arm/mm/proc-v7.S b/arch/arm/mm/proc-v7.S
index 9049c0764db2..21d6910d2208 100644
--- a/arch/arm/mm/proc-v7.S
+++ b/arch/arm/mm/proc-v7.S
@@ -259,14 +259,8 @@ ENTRY(cpu_v7_do_resume)
         isb
         dsb
         mov     r0, r9                  @ control register
-        mov     r2, r7, lsr #14         @ get TTB0 base
-        mov     r2, r2, lsl #14
-        ldr     r3, cpu_resume_l1_flags
         b       cpu_resume_mmu
 ENDPROC(cpu_v7_do_resume)
-cpu_resume_l1_flags:
-        ALT_SMP(.long PMD_TYPE_SECT | PMD_SECT_AP_WRITE | PMD_FLAGS_SMP)
-        ALT_UP(.long  PMD_TYPE_SECT | PMD_SECT_AP_WRITE | PMD_FLAGS_UP)
 #endif
 
         __CPUINIT