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authorSrikant Patnaik2015-01-11 12:28:04 +0530
committerSrikant Patnaik2015-01-11 12:28:04 +0530
commit871480933a1c28f8a9fed4c4d34d06c439a7a422 (patch)
tree8718f573808810c2a1e8cb8fb6ac469093ca2784 /ANDROID_3.4.5/arch/arm/mm/proc-v7.S
parent9d40ac5867b9aefe0722bc1f110b965ff294d30d (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')
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@@ -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