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author | Srikant Patnaik | 2015-01-11 12:28:04 +0530 |
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committer | Srikant Patnaik | 2015-01-11 12:28:04 +0530 |
commit | 871480933a1c28f8a9fed4c4d34d06c439a7a422 (patch) | |
tree | 8718f573808810c2a1e8cb8fb6ac469093ca2784 /ANDROID_3.4.5/arch/arm/mach-shmobile/headsmp.S | |
parent | 9d40ac5867b9aefe0722bc1f110b965ff294d30d (diff) | |
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Moved, renamed, and deleted files
The original directory structure was scattered and unorganized.
Changes are basically to make it look like kernel structure.
Diffstat (limited to 'ANDROID_3.4.5/arch/arm/mach-shmobile/headsmp.S')
-rw-r--r-- | ANDROID_3.4.5/arch/arm/mach-shmobile/headsmp.S | 81 |
1 files changed, 0 insertions, 81 deletions
diff --git a/ANDROID_3.4.5/arch/arm/mach-shmobile/headsmp.S b/ANDROID_3.4.5/arch/arm/mach-shmobile/headsmp.S deleted file mode 100644 index b202c127..00000000 --- a/ANDROID_3.4.5/arch/arm/mach-shmobile/headsmp.S +++ /dev/null @@ -1,81 +0,0 @@ -/* - * SMP support for R-Mobile / SH-Mobile - * - * Copyright (C) 2010 Magnus Damm - * Copyright (C) 2010 Takashi Yoshii - * - * Based on vexpress, Copyright (c) 2003 ARM Limited, All Rights Reserved - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ -#include <linux/linkage.h> -#include <linux/init.h> -#include <asm/memory.h> - - __CPUINIT - -/* Cache invalidation nicked from arch/arm/mach-imx/head-v7.S, thanks! - * - * The secondary kernel init calls v7_flush_dcache_all before it enables - * the L1; however, the L1 comes out of reset in an undefined state, so - * the clean + invalidate performed by v7_flush_dcache_all causes a bunch - * of cache lines with uninitialized data and uninitialized tags to get - * written out to memory, which does really unpleasant things to the main - * processor. We fix this by performing an invalidate, rather than a - * clean + invalidate, before jumping into the kernel. - * - * This funciton is cloned from arch/arm/mach-tegra/headsmp.S, and needs - * to be called for both secondary cores startup and primary core resume - * procedures. Ideally, it should be moved into arch/arm/mm/cache-v7.S. - */ -ENTRY(v7_invalidate_l1) - mov r0, #0 - mcr p15, 0, r0, c7, c5, 0 @ invalidate I cache - mcr p15, 2, r0, c0, c0, 0 - mrc p15, 1, r0, c0, c0, 0 - - ldr r1, =0x7fff - and r2, r1, r0, lsr #13 - - ldr r1, =0x3ff - - and r3, r1, r0, lsr #3 @ NumWays - 1 - add r2, r2, #1 @ NumSets - - and r0, r0, #0x7 - add r0, r0, #4 @ SetShift - - clz r1, r3 @ WayShift - add r4, r3, #1 @ NumWays -1: sub r2, r2, #1 @ NumSets-- - mov r3, r4 @ Temp = NumWays -2: subs r3, r3, #1 @ Temp-- - mov r5, r3, lsl r1 - mov r6, r2, lsl r0 - orr r5, r5, r6 @ Reg = (Temp<<WayShift)|(NumSets<<SetShift) - mcr p15, 0, r5, c7, c6, 2 - bgt 2b - cmp r2, #0 - bgt 1b - dsb - isb - mov pc, lr -ENDPROC(v7_invalidate_l1) - -ENTRY(shmobile_invalidate_start) - bl v7_invalidate_l1 - b secondary_startup -ENDPROC(shmobile_invalidate_start) - -/* - * Reset vector for secondary CPUs. - * This will be mapped at address 0 by SBAR register. - * We need _long_ jump to the physical address. - */ - .align 12 -ENTRY(shmobile_secondary_vector) - ldr pc, 1f -1: .long shmobile_invalidate_start - PAGE_OFFSET + PLAT_PHYS_OFFSET -ENDPROC(shmobile_secondary_vector) |