diff options
Diffstat (limited to 'arch/arm/lib')
| -rw-r--r-- | arch/arm/lib/csumpartialcopyuser.S | 20 | ||||
| -rw-r--r-- | arch/arm/lib/delay-loop.S | 16 |
2 files changed, 29 insertions, 7 deletions
diff --git a/arch/arm/lib/csumpartialcopyuser.S b/arch/arm/lib/csumpartialcopyuser.S index 6928781e6bee..c289bde04743 100644 --- a/arch/arm/lib/csumpartialcopyuser.S +++ b/arch/arm/lib/csumpartialcopyuser.S @@ -13,7 +13,8 @@ .text -#ifdef CONFIG_CPU_SW_DOMAIN_PAN +#if defined(CONFIG_CPU_SW_DOMAIN_PAN) + .macro save_regs mrc p15, 0, ip, c3, c0, 0 stmfd sp!, {r1, r2, r4 - r8, ip, lr} @@ -25,7 +26,23 @@ mcr p15, 0, ip, c3, c0, 0 ret lr .endm + +#elif defined(CONFIG_CPU_TTBR0_PAN) + + .macro save_regs + mrc p15, 0, ip, c2, c0, 2 @ read TTBCR + stmfd sp!, {r1, r2, r4 - r8, ip, lr} + uaccess_enable ip + .endm + + .macro load_regs + ldmfd sp!, {r1, r2, r4 - r8, ip, lr} + mcr p15, 0, ip, c2, c0, 2 @ restore TTBCR + ret lr + .endm + #else + .macro save_regs stmfd sp!, {r1, r2, r4 - r8, lr} .endm @@ -33,6 +50,7 @@ .macro load_regs ldmfd sp!, {r1, r2, r4 - r8, pc} .endm + #endif .macro load1b, reg1 diff --git a/arch/arm/lib/delay-loop.S b/arch/arm/lib/delay-loop.S index 3ac05177d097..33b08ca1c242 100644 --- a/arch/arm/lib/delay-loop.S +++ b/arch/arm/lib/delay-loop.S @@ -5,6 +5,7 @@ * Copyright (C) 1995, 1996 Russell King */ #include <linux/linkage.h> +#include <linux/cfi_types.h> #include <asm/assembler.h> #include <asm/delay.h> @@ -24,21 +25,26 @@ * HZ <= 1000 */ -ENTRY(__loop_udelay) +SYM_TYPED_FUNC_START(__loop_udelay) ldr r2, .LC1 mul r0, r2, r0 @ r0 = delay_us * UDELAY_MULT -ENTRY(__loop_const_udelay) @ 0 <= r0 <= 0xfffffaf0 + b __loop_const_udelay +SYM_FUNC_END(__loop_udelay) + +SYM_TYPED_FUNC_START(__loop_const_udelay) @ 0 <= r0 <= 0xfffffaf0 ldr r2, .LC0 ldr r2, [r2] umull r1, r0, r2, r0 @ r0-r1 = r0 * loops_per_jiffy adds r1, r1, #0xffffffff @ rounding up ... adcs r0, r0, r0 @ and right shift by 31 reteq lr + b __loop_delay +SYM_FUNC_END(__loop_const_udelay) .align 3 @ Delay routine -ENTRY(__loop_delay) +SYM_TYPED_FUNC_START(__loop_delay) subs r0, r0, #1 #if 0 retls lr @@ -58,6 +64,4 @@ ENTRY(__loop_delay) #endif bhi __loop_delay ret lr -ENDPROC(__loop_udelay) -ENDPROC(__loop_const_udelay) -ENDPROC(__loop_delay) +SYM_FUNC_END(__loop_delay) |