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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/mm/proc-v7.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/mm/proc-v7.S')
-rw-r--r-- | ANDROID_3.4.5/arch/arm/mm/proc-v7.S | 375 |
1 files changed, 0 insertions, 375 deletions
diff --git a/ANDROID_3.4.5/arch/arm/mm/proc-v7.S b/ANDROID_3.4.5/arch/arm/mm/proc-v7.S deleted file mode 100644 index c2e2b66f..00000000 --- a/ANDROID_3.4.5/arch/arm/mm/proc-v7.S +++ /dev/null @@ -1,375 +0,0 @@ -/* - * linux/arch/arm/mm/proc-v7.S - * - * Copyright (C) 2001 Deep Blue Solutions Ltd. - * - * 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. - * - * This is the "shell" of the ARMv7 processor support. - */ -#include <linux/init.h> -#include <linux/linkage.h> -#include <asm/assembler.h> -#include <asm/asm-offsets.h> -#include <asm/hwcap.h> -#include <asm/pgtable-hwdef.h> -#include <asm/pgtable.h> - -#include "proc-macros.S" - -#ifdef CONFIG_ARM_LPAE -#include "proc-v7-3level.S" -#else -#include "proc-v7-2level.S" -#endif - -ENTRY(cpu_v7_proc_init) - mov pc, lr -ENDPROC(cpu_v7_proc_init) - -ENTRY(cpu_v7_proc_fin) - mrc p15, 0, r0, c1, c0, 0 @ ctrl register - bic r0, r0, #0x1000 @ ...i............ - bic r0, r0, #0x0006 @ .............ca. - mcr p15, 0, r0, c1, c0, 0 @ disable caches - mov pc, lr -ENDPROC(cpu_v7_proc_fin) - -/* - * cpu_v7_reset(loc) - * - * Perform a soft reset of the system. Put the CPU into the - * same state as it would be if it had been reset, and branch - * to what would be the reset vector. - * - * - loc - location to jump to for soft reset - * - * This code must be executed using a flat identity mapping with - * caches disabled. - */ - .align 5 - .pushsection .idmap.text, "ax" -ENTRY(cpu_v7_reset) - mrc p15, 0, r1, c1, c0, 0 @ ctrl register - bic r1, r1, #0x1 @ ...............m - THUMB( bic r1, r1, #1 << 30 ) @ SCTLR.TE (Thumb exceptions) - mcr p15, 0, r1, c1, c0, 0 @ disable MMU - isb - mov pc, r0 -ENDPROC(cpu_v7_reset) - .popsection - -/* - * cpu_v7_do_idle() - * - * Idle the processor (eg, wait for interrupt). - * - * IRQs are already disabled. - */ -ENTRY(cpu_v7_do_idle) - dsb @ WFI may enter a low-power mode - wfi - mov pc, lr -ENDPROC(cpu_v7_do_idle) - -ENTRY(cpu_v7_dcache_clean_area) -#ifndef TLB_CAN_READ_FROM_L1_CACHE - dcache_line_size r2, r3 -1: mcr p15, 0, r0, c7, c10, 1 @ clean D entry - add r0, r0, r2 - subs r1, r1, r2 - bhi 1b - dsb -#endif - mov pc, lr -ENDPROC(cpu_v7_dcache_clean_area) - - string cpu_v7_name, "ARMv7 Processor" - .align - -/* Suspend/resume support: derived from arch/arm/mach-s5pv210/sleep.S */ -.globl cpu_v7_suspend_size -.equ cpu_v7_suspend_size, 4 * 8 -#ifdef CONFIG_ARM_CPU_SUSPEND -ENTRY(cpu_v7_do_suspend) - stmfd sp!, {r4 - r10, lr} - mrc p15, 0, r4, c13, c0, 0 @ FCSE/PID - mrc p15, 0, r5, c13, c0, 3 @ User r/o thread ID - stmia r0!, {r4 - r5} - mrc p15, 0, r6, c3, c0, 0 @ Domain ID - mrc p15, 0, r7, c2, c0, 1 @ TTB 1 - mrc p15, 0, r11, c2, c0, 2 @ TTB control register - mrc p15, 0, r8, c1, c0, 0 @ Control register - mrc p15, 0, r9, c1, c0, 1 @ Auxiliary control register - mrc p15, 0, r10, c1, c0, 2 @ Co-processor access control - stmia r0, {r6 - r11} - ldmfd sp!, {r4 - r10, pc} -ENDPROC(cpu_v7_do_suspend) - -ENTRY(cpu_v7_do_resume) - mov ip, #0 - mcr p15, 0, ip, c8, c7, 0 @ invalidate TLBs - mcr p15, 0, ip, c7, c5, 0 @ invalidate I cache - mcr p15, 0, ip, c13, c0, 1 @ set reserved context ID - ldmia r0!, {r4 - r5} - mcr p15, 0, r4, c13, c0, 0 @ FCSE/PID - mcr p15, 0, r5, c13, c0, 3 @ User r/o thread ID - ldmia r0, {r6 - r11} - mcr p15, 0, r6, c3, c0, 0 @ Domain ID -#ifndef CONFIG_ARM_LPAE - ALT_SMP(orr r1, r1, #TTB_FLAGS_SMP) - ALT_UP(orr r1, r1, #TTB_FLAGS_UP) -#endif - mcr p15, 0, r1, c2, c0, 0 @ TTB 0 - mcr p15, 0, r7, c2, c0, 1 @ TTB 1 - mcr p15, 0, r11, c2, c0, 2 @ TTB control register - mrc p15, 0, r4, c1, c0, 1 @ Read Auxiliary control register - teq r4, r9 @ Is it already set? - mcrne p15, 0, r9, c1, c0, 1 @ No, so write it - mcr p15, 0, r10, c1, c0, 2 @ Co-processor access control - ldr r4, =PRRR @ PRRR - ldr r5, =NMRR @ NMRR - mcr p15, 0, r4, c10, c2, 0 @ write PRRR - mcr p15, 0, r5, c10, c2, 1 @ write NMRR - isb - dsb - mov r0, r8 @ control register - b cpu_resume_mmu -ENDPROC(cpu_v7_do_resume) -#endif - - __CPUINIT - -/* - * __v7_setup - * - * Initialise TLB, Caches, and MMU state ready to switch the MMU - * on. Return in r0 the new CP15 C1 control register setting. - * - * This should be able to cover all ARMv7 cores. - * - * It is assumed that: - * - cache type register is implemented - */ -__v7_ca5mp_setup: -__v7_ca9mp_setup: - mov r10, #(1 << 0) @ TLB ops broadcasting - b 1f -__v7_ca7mp_setup: -__v7_ca15mp_setup: - mov r10, #0 -1: -#ifdef CONFIG_SMP - ALT_SMP(mrc p15, 0, r0, c1, c0, 1) - ALT_UP(mov r0, #(1 << 6)) @ fake it for UP - tst r0, #(1 << 6) @ SMP/nAMP mode enabled? - orreq r0, r0, #(1 << 6) @ Enable SMP/nAMP mode - orreq r0, r0, r10 @ Enable CPU-specific SMP bits - mcreq p15, 0, r0, c1, c0, 1 -#endif -__v7_setup: - adr r12, __v7_setup_stack @ the local stack - stmia r12, {r0-r5, r7, r9, r11, lr} - bl v7_flush_dcache_all - ldmia r12, {r0-r5, r7, r9, r11, lr} - - mrc p15, 0, r0, c0, c0, 0 @ read main ID register - and r10, r0, #0xff000000 @ ARM? - teq r10, #0x41000000 - bne 3f - and r5, r0, #0x00f00000 @ variant - and r6, r0, #0x0000000f @ revision - orr r6, r6, r5, lsr #20-4 @ combine variant and revision - ubfx r0, r0, #4, #12 @ primary part number - - /* Cortex-A8 Errata */ - ldr r10, =0x00000c08 @ Cortex-A8 primary part number - teq r0, r10 - bne 2f -#ifdef CONFIG_ARM_ERRATA_430973 - teq r5, #0x00100000 @ only present in r1p* - mrceq p15, 0, r10, c1, c0, 1 @ read aux control register - orreq r10, r10, #(1 << 6) @ set IBE to 1 - mcreq p15, 0, r10, c1, c0, 1 @ write aux control register -#endif -#ifdef CONFIG_ARM_ERRATA_458693 - teq r6, #0x20 @ only present in r2p0 - mrceq p15, 0, r10, c1, c0, 1 @ read aux control register - orreq r10, r10, #(1 << 5) @ set L1NEON to 1 - orreq r10, r10, #(1 << 9) @ set PLDNOP to 1 - mcreq p15, 0, r10, c1, c0, 1 @ write aux control register -#endif -#ifdef CONFIG_ARM_ERRATA_460075 - teq r6, #0x20 @ only present in r2p0 - mrceq p15, 1, r10, c9, c0, 2 @ read L2 cache aux ctrl register - tsteq r10, #1 << 22 - orreq r10, r10, #(1 << 22) @ set the Write Allocate disable bit - mcreq p15, 1, r10, c9, c0, 2 @ write the L2 cache aux ctrl register -#endif - b 3f - - /* Cortex-A9 Errata */ -2: ldr r10, =0x00000c09 @ Cortex-A9 primary part number - teq r0, r10 - bne 3f -#ifdef CONFIG_ARM_ERRATA_742230 - cmp r6, #0x22 @ only present up to r2p2 - mrcle p15, 0, r10, c15, c0, 1 @ read diagnostic register - orrle r10, r10, #1 << 4 @ set bit #4 - mcrle p15, 0, r10, c15, c0, 1 @ write diagnostic register -#endif -#ifdef CONFIG_ARM_ERRATA_742231 - teq r6, #0x20 @ present in r2p0 - teqne r6, #0x21 @ present in r2p1 - teqne r6, #0x22 @ present in r2p2 - mrceq p15, 0, r10, c15, c0, 1 @ read diagnostic register - orreq r10, r10, #1 << 12 @ set bit #12 - orreq r10, r10, #1 << 22 @ set bit #22 - mcreq p15, 0, r10, c15, c0, 1 @ write diagnostic register -#endif -#ifdef CONFIG_ARM_ERRATA_743622 - teq r5, #0x00200000 @ only present in r2p* - mrceq p15, 0, r10, c15, c0, 1 @ read diagnostic register - orreq r10, r10, #1 << 6 @ set bit #6 - mcreq p15, 0, r10, c15, c0, 1 @ write diagnostic register -#endif -#if defined(CONFIG_ARM_ERRATA_751472) && defined(CONFIG_SMP) - ALT_SMP(cmp r6, #0x30) @ present prior to r3p0 - ALT_UP_B(1f) - mrclt p15, 0, r10, c15, c0, 1 @ read diagnostic register - orrlt r10, r10, #1 << 11 @ set bit #11 - mcrlt p15, 0, r10, c15, c0, 1 @ write diagnostic register -1: -#endif - -3: mov r10, #0 - mcr p15, 0, r10, c7, c5, 0 @ I+BTB cache invalidate - dsb -#ifdef CONFIG_MMU - mcr p15, 0, r10, c8, c7, 0 @ invalidate I + D TLBs - v7_ttb_setup r10, r4, r8, r5 @ TTBCR, TTBRx setup - ldr r5, =PRRR @ PRRR - ldr r6, =NMRR @ NMRR - mcr p15, 0, r5, c10, c2, 0 @ write PRRR - mcr p15, 0, r6, c10, c2, 1 @ write NMRR -#endif -#ifndef CONFIG_ARM_THUMBEE - mrc p15, 0, r0, c0, c1, 0 @ read ID_PFR0 for ThumbEE - and r0, r0, #(0xf << 12) @ ThumbEE enabled field - teq r0, #(1 << 12) @ check if ThumbEE is present - bne 1f - mov r5, #0 - mcr p14, 6, r5, c1, c0, 0 @ Initialize TEEHBR to 0 - mrc p14, 6, r0, c0, c0, 0 @ load TEECR - orr r0, r0, #1 @ set the 1st bit in order to - mcr p14, 6, r0, c0, c0, 0 @ stop userspace TEEHBR access -1: -#endif - adr r5, v7_crval - ldmia r5, {r5, r6} -#ifdef CONFIG_CPU_ENDIAN_BE8 - orr r6, r6, #1 << 25 @ big-endian page tables -#endif -#ifdef CONFIG_SWP_EMULATE - orr r5, r5, #(1 << 10) @ set SW bit in "clear" - bic r6, r6, #(1 << 10) @ clear it in "mmuset" -#endif - mrc p15, 0, r0, c1, c0, 0 @ read control register - bic r0, r0, r5 @ clear bits them - orr r0, r0, r6 @ set them - THUMB( orr r0, r0, #1 << 30 ) @ Thumb exceptions - mov pc, lr @ return to head.S:__ret -ENDPROC(__v7_setup) - - .align 2 -__v7_setup_stack: - .space 4 * 11 @ 11 registers - - __INITDATA - - @ define struct processor (see <asm/proc-fns.h> and proc-macros.S) - define_processor_functions v7, dabort=v7_early_abort, pabort=v7_pabort, suspend=1 - - .section ".rodata" - - string cpu_arch_name, "armv7" - string cpu_elf_name, "v7" - .align - - .section ".proc.info.init", #alloc, #execinstr - - /* - * Standard v7 proc info content - */ -.macro __v7_proc initfunc, mm_mmuflags = 0, io_mmuflags = 0, hwcaps = 0 - ALT_SMP(.long PMD_TYPE_SECT | PMD_SECT_AP_WRITE | PMD_SECT_AP_READ | \ - PMD_SECT_AF | PMD_FLAGS_SMP | \mm_mmuflags) - ALT_UP(.long PMD_TYPE_SECT | PMD_SECT_AP_WRITE | PMD_SECT_AP_READ | \ - PMD_SECT_AF | PMD_FLAGS_UP | \mm_mmuflags) - .long PMD_TYPE_SECT | PMD_SECT_AP_WRITE | \ - PMD_SECT_AP_READ | PMD_SECT_AF | \io_mmuflags - W(b) \initfunc - .long cpu_arch_name - .long cpu_elf_name - .long HWCAP_SWP | HWCAP_HALF | HWCAP_THUMB | HWCAP_FAST_MULT | \ - HWCAP_EDSP | HWCAP_TLS | \hwcaps - .long cpu_v7_name - .long v7_processor_functions - .long v7wbi_tlb_fns - .long v6_user_fns - .long v7_cache_fns -.endm - -#ifndef CONFIG_ARM_LPAE - /* - * ARM Ltd. Cortex A5 processor. - */ - .type __v7_ca5mp_proc_info, #object -__v7_ca5mp_proc_info: - .long 0x410fc050 - .long 0xff0ffff0 - __v7_proc __v7_ca5mp_setup - .size __v7_ca5mp_proc_info, . - __v7_ca5mp_proc_info - - /* - * ARM Ltd. Cortex A9 processor. - */ - .type __v7_ca9mp_proc_info, #object -__v7_ca9mp_proc_info: - .long 0x410fc090 - .long 0xff0ffff0 - __v7_proc __v7_ca9mp_setup - .size __v7_ca9mp_proc_info, . - __v7_ca9mp_proc_info -#endif /* CONFIG_ARM_LPAE */ - - /* - * ARM Ltd. Cortex A7 processor. - */ - .type __v7_ca7mp_proc_info, #object -__v7_ca7mp_proc_info: - .long 0x410fc070 - .long 0xff0ffff0 - __v7_proc __v7_ca7mp_setup, hwcaps = HWCAP_IDIV - .size __v7_ca7mp_proc_info, . - __v7_ca7mp_proc_info - - /* - * ARM Ltd. Cortex A15 processor. - */ - .type __v7_ca15mp_proc_info, #object -__v7_ca15mp_proc_info: - .long 0x410fc0f0 - .long 0xff0ffff0 - __v7_proc __v7_ca15mp_setup, hwcaps = HWCAP_IDIV - .size __v7_ca15mp_proc_info, . - __v7_ca15mp_proc_info - - /* - * Match any ARMv7 processor core. - */ - .type __v7_proc_info, #object -__v7_proc_info: - .long 0x000f0000 @ Required ID value - .long 0x000f0000 @ Mask for ID - __v7_proc __v7_setup - .size __v7_proc_info, . - __v7_proc_info |