OpenE2K
/
linux
6
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

ARM: 8325/1: exynos: move resume code to .text section 

This code calls cpu_resume() using a straight branch (b), so
now that we have moved cpu_resume() back to .text, this should
be moved there as well. Any direct references to symbols that will
remain in the .data section are replaced with explicit PC-relative
references.

Acked-by: Nicolas Pitre <nico@linaro.org>
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
Ard Biesheuvel 2015-03-25 07:41:43 +01:00 committed by Russell King
parent d0776aff9a
commit 12833bacf5
1 changed files with 16 additions and 15 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

31
arch/arm/mach-exynos/sleep.S
View File

@ -23,14 +23,7 @@
#define CPU_MASK 0xff0ffff0
#define CPU_CORTEX_A9 0x410fc090
/*
* The following code is located into the .data section. This is to
* allow l2x0_regs_phys to be accessed with a relative load while we
* can't rely on any MMU translation. We could have put l2x0_regs_phys
* in the .text section as well, but some setups might insist on it to
* be truly read-only. (Reference from: arch/arm/kernel/sleep.S)
*/
.data
.text
.align
/*
@ -69,10 +62,12 @@ ENTRY(exynos_cpu_resume_ns)
cmp r0, r1
bne skip_cp15
adr r0, cp15_save_power
adr r0, _cp15_save_power
ldr r1, [r0]
adr r0, cp15_save_diag
ldr r1, [r0, r1]
adr r0, _cp15_save_diag
ldr r2, [r0]
ldr r2, [r0, r2]
mov r0, #SMC_CMD_C15RESUME
dsb
smc #0
@ -118,14 +113,20 @@ skip_l2x0:
skip_cp15:
b cpu_resume
ENDPROC(exynos_cpu_resume_ns)
.align
_cp15_save_power:
.long cp15_save_power - .
_cp15_save_diag:
.long cp15_save_diag - .
#ifdef CONFIG_CACHE_L2X0
1: .long l2x0_saved_regs - .
#endif /* CONFIG_CACHE_L2X0 */
.data
.globl cp15_save_diag
cp15_save_diag:
.long 0 @ cp15 diagnostic
.globl cp15_save_power
cp15_save_power:
.long 0 @ cp15 power control
#ifdef CONFIG_CACHE_L2X0
.align
1: .long l2x0_saved_regs - .
#endif /* CONFIG_CACHE_L2X0 */