/* * 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 #include #include #include #include #include #include #include #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) ret 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 ret lr ENDPROC(cpu_v7_proc_fin) /* * cpu_v7_reset(loc, hyp) * * 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 * - hyp - indicate if restart occurs in HYP mode * * 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, r2, c1, c0, 0 @ ctrl register bic r2, r2, #0x1 @ ...............m THUMB( bic r2, r2, #1 << 30 ) @ SCTLR.TE (Thumb exceptions) mcr p15, 0, r2, c1, c0, 0 @ disable MMU isb #ifdef CONFIG_ARM_VIRT_EXT teq r1, #0 bne __hyp_soft_restart #endif bx 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 ret lr ENDPROC(cpu_v7_do_idle) ENTRY(cpu_v7_dcache_clean_area) ALT_SMP(W(nop)) @ MP extensions imply L1 PTW ALT_UP_B(1f) ret lr 1: dcache_line_size r2, r3 2: mcr p15, 0, r0, c7, c10, 1 @ clean D entry add r0, r0, r2 subs r1, r1, r2 bhi 2b dsb ishst ret lr ENDPROC(cpu_v7_dcache_clean_area) ENTRY(cpu_v7_iciallu_switch_mm) mov r3, #0 mcr p15, 0, r3, c7, c5, 0 @ ICIALLU b cpu_v7_switch_mm ENDPROC(cpu_v7_iciallu_switch_mm) ENTRY(cpu_v7_bpiall_switch_mm) mov r3, #0 mcr p15, 0, r3, c7, c5, 6 @ flush BTAC/BTB b cpu_v7_switch_mm ENDPROC(cpu_v7_bpiall_switch_mm) 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 * 9 #ifdef CONFIG_ARM_CPU_SUSPEND ENTRY(cpu_v7_do_suspend) stmfd sp!, {r4 - r11, 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} #ifdef CONFIG_MMU mrc p15, 0, r6, c3, c0, 0 @ Domain ID #ifdef CONFIG_ARM_LPAE mrrc p15, 1, r5, r7, c2 @ TTB 1 #else mrc p15, 0, r7, c2, c0, 1 @ TTB 1 #endif mrc p15, 0, r11, c2, c0, 2 @ TTB control register #endif 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, {r5 - r11} ldmfd sp!, {r4 - r11, pc} ENDPROC(cpu_v7_do_suspend) ENTRY(cpu_v7_do_resume) mov ip, #0 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, {r5 - r11} #ifdef CONFIG_MMU mcr p15, 0, ip, c8, c7, 0 @ invalidate TLBs mcr p15, 0, r6, c3, c0, 0 @ Domain ID #ifdef CONFIG_ARM_LPAE mcrr p15, 0, r1, ip, c2 @ TTB 0 mcrr p15, 1, r5, r7, c2 @ TTB 1 #else ALT_SMP(orr r1, r1, #TTB_FLAGS_SMP) ALT_UP(orr r1, r1, #TTB_FLAGS_UP) mcr p15, 0, r1, c2, c0, 0 @ TTB 0 mcr p15, 0, r7, c2, c0, 1 @ TTB 1 #endif mcr p15, 0, r11, c2, c0, 2 @ TTB control register 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 #endif /* CONFIG_MMU */ 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 isb dsb mov r0, r8 @ control register b cpu_resume_mmu ENDPROC(cpu_v7_do_resume) #endif .globl cpu_ca9mp_suspend_size .equ cpu_ca9mp_suspend_size, cpu_v7_suspend_size + 4 * 2 #ifdef CONFIG_ARM_CPU_SUSPEND ENTRY(cpu_ca9mp_do_suspend) stmfd sp!, {r4 - r5} mrc p15, 0, r4, c15, c0, 1 @ Diagnostic register mrc p15, 0, r5, c15, c0, 0 @ Power register stmia r0!, {r4 - r5} ldmfd sp!, {r4 - r5} b cpu_v7_do_suspend ENDPROC(cpu_ca9mp_do_suspend) ENTRY(cpu_ca9mp_do_resume) ldmia r0!, {r4 - r5} mrc p15, 0, r10, c15, c0, 1 @ Read Diagnostic register teq r4, r10 @ Already restored? mcrne p15, 0, r4, c15, c0, 1 @ No, so restore it mrc p15, 0, r10, c15, c0, 0 @ Read Power register teq r5, r10 @ Already restored? mcrne p15, 0, r5, c15, c0, 0 @ No, so restore it b cpu_v7_do_resume ENDPROC(cpu_ca9mp_do_resume) #endif #ifdef CONFIG_CPU_PJ4B globl_equ cpu_pj4b_switch_mm, cpu_v7_switch_mm globl_equ cpu_pj4b_set_pte_ext, cpu_v7_set_pte_ext globl_equ cpu_pj4b_proc_init, cpu_v7_proc_init globl_equ cpu_pj4b_proc_fin, cpu_v7_proc_fin globl_equ cpu_pj4b_reset, cpu_v7_reset #ifdef CONFIG_PJ4B_ERRATA_4742 ENTRY(cpu_pj4b_do_idle) dsb @ WFI may enter a low-power mode wfi dsb @barrier ret lr ENDPROC(cpu_pj4b_do_idle) #else globl_equ cpu_pj4b_do_idle, cpu_v7_do_idle #endif globl_equ cpu_pj4b_dcache_clean_area, cpu_v7_dcache_clean_area #ifdef CONFIG_ARM_CPU_SUSPEND ENTRY(cpu_pj4b_do_suspend) stmfd sp!, {r6 - r10} mrc p15, 1, r6, c15, c1, 0 @ save CP15 - extra features mrc p15, 1, r7, c15, c2, 0 @ save CP15 - Aux Func Modes Ctrl 0 mrc p15, 1, r8, c15, c1, 2 @ save CP15 - Aux Debug Modes Ctrl 2 mrc p15, 1, r9, c15, c1, 1 @ save CP15 - Aux Debug Modes Ctrl 1 mrc p15, 0, r10, c9, c14, 0 @ save CP15 - PMC stmia r0!, {r6 - r10} ldmfd sp!, {r6 - r10} b cpu_v7_do_suspend ENDPROC(cpu_pj4b_do_suspend) ENTRY(cpu_pj4b_do_resume) ldmia r0!, {r6 - r10} mcr p15, 1, r6, c15, c1, 0 @ restore CP15 - extra features mcr p15, 1, r7, c15, c2, 0 @ restore CP15 - Aux Func Modes Ctrl 0 mcr p15, 1, r8, c15, c1, 2 @ restore CP15 - Aux Debug Modes Ctrl 2 mcr p15, 1, r9, c15, c1, 1 @ restore CP15 - Aux Debug Modes Ctrl 1 mcr p15, 0, r10, c9, c14, 0 @ restore CP15 - PMC b cpu_v7_do_resume ENDPROC(cpu_pj4b_do_resume) #endif .globl cpu_pj4b_suspend_size .equ cpu_pj4b_suspend_size, cpu_v7_suspend_size + 4 * 5 #endif /* * __v7_setup * * Initialise TLB, Caches, and MMU state ready to switch the MMU * on. Return in r0 the new CP15 C1 control register setting. * * r1, r2, r4, r5, r9, r13 must be preserved - r13 is not a stack * r4: TTBR0 (low word) * r5: TTBR0 (high word if LPAE) * r8: TTBR1 * r9: Main ID register * * This should be able to cover all ARMv7 cores. * * It is assumed that: * - cache type register is implemented */ __v7_ca5mp_setup: __v7_ca9mp_setup: __v7_cr7mp_setup: mov r10, #(1 << 0) @ Cache/TLB ops broadcasting b 1f __v7_ca7mp_setup: __v7_ca12mp_setup: __v7_ca15mp_setup: __v7_b15mp_setup: __v7_ca17mp_setup: mov r10, #0 1: adr r0, __v7_setup_stack_ptr ldr r12, [r0] add r12, r12, r0 @ the local stack stmia r12, {r1-r6, lr} @ v7_invalidate_l1 touches r0-r6 bl v7_invalidate_l1 ldmia r12, {r1-r6, lr} #ifdef CONFIG_SMP orr r10, r10, #(1 << 6) @ Enable SMP/nAMP mode ALT_SMP(mrc p15, 0, r0, c1, c0, 1) ALT_UP(mov r0, r10) @ fake it for UP orr r10, r10, r0 @ Set required bits teq r10, r0 @ Were they already set? mcrne p15, 0, r10, c1, c0, 1 @ No, update register #endif b __v7_setup_cont /* * Errata: * r0, r10 available for use * r1, r2, r4, r5, r9, r13: must be preserved * r3: contains MIDR rX number in bits 23-20 * r6: contains MIDR rXpY as 8-bit XY number * r9: MIDR */ __ca8_errata: #if defined(CONFIG_ARM_ERRATA_430973) && !defined(CONFIG_ARCH_MULTIPLATFORM) teq r3, #0x00100000 @ only present in r1p* mrceq p15, 0, r0, c1, c0, 1 @ read aux control register orreq r0, r0, #(1 << 6) @ set IBE to 1 mcreq p15, 0, r0, c1, c0, 1 @ write aux control register #endif #ifdef CONFIG_ARM_ERRATA_458693 teq r6, #0x20 @ only present in r2p0 mrceq p15, 0, r0, c1, c0, 1 @ read aux control register orreq r0, r0, #(1 << 5) @ set L1NEON to 1 orreq r0, r0, #(1 << 9) @ set PLDNOP to 1 mcreq p15, 0, r0, c1, c0, 1 @ write aux control register #endif #ifdef CONFIG_ARM_ERRATA_460075 teq r6, #0x20 @ only present in r2p0 mrceq p15, 1, r0, c9, c0, 2 @ read L2 cache aux ctrl register tsteq r0, #1 << 22 orreq r0, r0, #(1 << 22) @ set the Write Allocate disable bit mcreq p15, 1, r0, c9, c0, 2 @ write the L2 cache aux ctrl register #endif b __errata_finish __ca9_errata: #ifdef CONFIG_ARM_ERRATA_742230 cmp r6, #0x22 @ only present up to r2p2 mrcle p15, 0, r0, c15, c0, 1 @ read diagnostic register orrle r0, r0, #1 << 4 @ set bit #4 mcrle p15, 0, r0, 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, r0, c15, c0, 1 @ read diagnostic register orreq r0, r0, #1 << 12 @ set bit #12 orreq r0, r0, #1 << 22 @ set bit #22 mcreq p15, 0, r0, c15, c0, 1 @ write diagnostic register #endif #ifdef CONFIG_ARM_ERRATA_743622 teq r3, #0x00200000 @ only present in r2p* mrceq p15, 0, r0, c15, c0, 1 @ read diagnostic register orreq r0, r0, #1 << 6 @ set bit #6 mcreq p15, 0, r0, 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, r0, c15, c0, 1 @ read diagnostic register orrlt r0, r0, #1 << 11 @ set bit #11 mcrlt p15, 0, r0, c15, c0, 1 @ write diagnostic register 1: #endif b __errata_finish __ca15_errata: #ifdef CONFIG_ARM_ERRATA_773022 cmp r6, #0x4 @ only present up to r0p4 mrcle p15, 0, r0, c1, c0, 1 @ read aux control register orrle r0, r0, #1 << 1 @ disable loop buffer mcrle p15, 0, r0, c1, c0, 1 @ write aux control register #endif b __errata_finish __ca12_errata: #ifdef CONFIG_ARM_ERRATA_818325_852422 mrc p15, 0, r10, c15, c0, 1 @ read diagnostic register orr r10, r10, #1 << 12 @ set bit #12 mcr p15, 0, r10, c15, c0, 1 @ write diagnostic register #endif #ifdef CONFIG_ARM_ERRATA_821420 mrc p15, 0, r10, c15, c0, 2 @ read internal feature reg orr r10, r10, #1 << 1 @ set bit #1 mcr p15, 0, r10, c15, c0, 2 @ write internal feature reg #endif #ifdef CONFIG_ARM_ERRATA_825619 mrc p15, 0, r10, c15, c0, 1 @ read diagnostic register orr r10, r10, #1 << 24 @ set bit #24 mcr p15, 0, r10, c15, c0, 1 @ write diagnostic register #endif b __errata_finish __ca17_errata: #ifdef CONFIG_ARM_ERRATA_852421 cmp r6, #0x12 @ only present up to r1p2 mrcle p15, 0, r10, c15, c0, 1 @ read diagnostic register orrle r10, r10, #1 << 24 @ set bit #24 mcrle p15, 0, r10, c15, c0, 1 @ write diagnostic register #endif #ifdef CONFIG_ARM_ERRATA_852423 cmp r6, #0x12 @ only present up to r1p2 mrcle p15, 0, r10, c15, c0, 1 @ read diagnostic register orrle r10, r10, #1 << 12 @ set bit #12 mcrle p15, 0, r10, c15, c0, 1 @ write diagnostic register #endif b __errata_finish __v7_pj4b_setup: #ifdef CONFIG_CPU_PJ4B /* Auxiliary Debug Modes Control 1 Register */ #define PJ4B_STATIC_BP (1 << 2) /* Enable Static BP */ #define PJ4B_INTER_PARITY (1 << 8) /* Disable Internal Parity Handling */ #define PJ4B_CLEAN_LINE (1 << 16) /* Disable data transfer for clean line */ /* Auxiliary Debug Modes Control 2 Register */ #define PJ4B_FAST_LDR (1 << 23) /* Disable fast LDR */ #define PJ4B_SNOOP_DATA (1 << 25) /* Do not interleave write and snoop data */ #define PJ4B_CWF (1 << 27) /* Disable Critical Word First feature */ #define PJ4B_OUTSDNG_NC (1 << 29) /* Disable outstanding non cacheable rqst */ #define PJ4B_L1_REP_RR (1 << 30) /* L1 replacement - Strict round robin */ #define PJ4B_AUX_DBG_CTRL2 (PJ4B_SNOOP_DATA | PJ4B_CWF |\ PJ4B_OUTSDNG_NC | PJ4B_L1_REP_RR) /* Auxiliary Functional Modes Control Register 0 */ #define PJ4B_SMP_CFB (1 << 1) /* Set SMP mode. Join the coherency fabric */ #define PJ4B_L1_PAR_CHK (1 << 2) /* Support L1 parity checking */ #define PJ4B_BROADCAST_CACHE (1 << 8) /* Broadcast Cache and TLB maintenance */ /* Auxiliary Debug Modes Control 0 Register */ #define PJ4B_WFI_WFE (1 << 22) /* WFI/WFE - serve the DVM and back to idle */ /* Auxiliary Debug Modes Control 1 Register */ mrc p15, 1, r0, c15, c1, 1 orr r0, r0, #PJ4B_CLEAN_LINE orr r0, r0, #PJ4B_INTER_PARITY bic r0, r0, #PJ4B_STATIC_BP mcr p15, 1, r0, c15, c1, 1 /* Auxiliary Debug Modes Control 2 Register */ mrc p15, 1, r0, c15, c1, 2 bic r0, r0, #PJ4B_FAST_LDR orr r0, r0, #PJ4B_AUX_DBG_CTRL2 mcr p15, 1, r0, c15, c1, 2 /* Auxiliary Functional Modes Control Register 0 */ mrc p15, 1, r0, c15, c2, 0 #ifdef CONFIG_SMP orr r0, r0, #PJ4B_SMP_CFB #endif orr r0, r0, #PJ4B_L1_PAR_CHK orr r0, r0, #PJ4B_BROADCAST_CACHE mcr p15, 1, r0, c15, c2, 0 /* Auxiliary Debug Modes Control 0 Register */ mrc p15, 1, r0, c15, c1, 0 orr r0, r0, #PJ4B_WFI_WFE mcr p15, 1, r0, c15, c1, 0 #endif /* CONFIG_CPU_PJ4B */ __v7_setup: adr r0, __v7_setup_stack_ptr ldr r12, [r0] add r12, r12, r0 @ the local stack stmia r12, {r1-r6, lr} @ v7_invalidate_l1 touches r0-r6 bl v7_invalidate_l1 ldmia r12, {r1-r6, lr} __v7_setup_cont: and r0, r9, #0xff000000 @ ARM? teq r0, #0x41000000 bne __errata_finish and r3, r9, #0x00f00000 @ variant and r6, r9, #0x0000000f @ revision orr r6, r6, r3, lsr #20-4 @ combine variant and revision ubfx r0, r9, #4, #12 @ primary part number /* Cortex-A8 Errata */ ldr r10, =0x00000c08 @ Cortex-A8 primary part number teq r0, r10 beq __ca8_errata /* Cortex-A9 Errata */ ldr r10, =0x00000c09 @ Cortex-A9 primary part number teq r0, r10 beq __ca9_errata /* Cortex-A12 Errata */ ldr r10, =0x00000c0d @ Cortex-A12 primary part number teq r0, r10 beq __ca12_errata /* Cortex-A17 Errata */ ldr r10, =0x00000c0e @ Cortex-A17 primary part number teq r0, r10 beq __ca17_errata /* Cortex-A15 Errata */ ldr r10, =0x00000c0f @ Cortex-A15 primary part number teq r0, r10 beq __ca15_errata __errata_finish: mov r10, #0 mcr p15, 0, r10, c7, c5, 0 @ I+BTB cache invalidate #ifdef CONFIG_MMU mcr p15, 0, r10, c8, c7, 0 @ invalidate I + D TLBs v7_ttb_setup r10, r4, r5, r8, r3 @ TTBCR, TTBRx setup ldr r3, =PRRR @ PRRR ldr r6, =NMRR @ NMRR mcr p15, 0, r3, c10, c2, 0 @ write PRRR mcr p15, 0, r6, c10, c2, 1 @ write NMRR #endif dsb @ Complete invalidations #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 r3, #0 mcr p14, 6, r3, 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 r3, v7_crval ldmia r3, {r3, r6} ARM_BE8(orr r6, r6, #1 << 25) @ big-endian page tables #ifdef CONFIG_SWP_EMULATE orr r3, r3, #(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, r3 @ clear bits them orr r0, r0, r6 @ set them THUMB( orr r0, r0, #1 << 30 ) @ Thumb exceptions ret lr @ return to head.S:__ret .align 2 __v7_setup_stack_ptr: .word PHYS_RELATIVE(__v7_setup_stack, .) ENDPROC(__v7_setup) .bss .align 2 __v7_setup_stack: .space 4 * 7 @ 7 registers __INITDATA @ define struct processor (see and proc-macros.S) define_processor_functions v7, dabort=v7_early_abort, pabort=v7_pabort, suspend=1 #ifdef CONFIG_HARDEN_BRANCH_PREDICTOR @ generic v7 bpiall on context switch globl_equ cpu_v7_bpiall_proc_init, cpu_v7_proc_init globl_equ cpu_v7_bpiall_proc_fin, cpu_v7_proc_fin globl_equ cpu_v7_bpiall_reset, cpu_v7_reset globl_equ cpu_v7_bpiall_do_idle, cpu_v7_do_idle globl_equ cpu_v7_bpiall_dcache_clean_area, cpu_v7_dcache_clean_area globl_equ cpu_v7_bpiall_set_pte_ext, cpu_v7_set_pte_ext globl_equ cpu_v7_bpiall_suspend_size, cpu_v7_suspend_size #ifdef CONFIG_ARM_CPU_SUSPEND globl_equ cpu_v7_bpiall_do_suspend, cpu_v7_do_suspend globl_equ cpu_v7_bpiall_do_resume, cpu_v7_do_resume #endif define_processor_functions v7_bpiall, dabort=v7_early_abort, pabort=v7_pabort, suspend=1 #define HARDENED_BPIALL_PROCESSOR_FUNCTIONS v7_bpiall_processor_functions #else #define HARDENED_BPIALL_PROCESSOR_FUNCTIONS v7_processor_functions #endif #ifndef CONFIG_ARM_LPAE @ Cortex-A8 - always needs bpiall switch_mm implementation globl_equ cpu_ca8_proc_init, cpu_v7_proc_init globl_equ cpu_ca8_proc_fin, cpu_v7_proc_fin globl_equ cpu_ca8_reset, cpu_v7_reset globl_equ cpu_ca8_do_idle, cpu_v7_do_idle globl_equ cpu_ca8_dcache_clean_area, cpu_v7_dcache_clean_area globl_equ cpu_ca8_set_pte_ext, cpu_v7_set_pte_ext globl_equ cpu_ca8_switch_mm, cpu_v7_bpiall_switch_mm globl_equ cpu_ca8_suspend_size, cpu_v7_suspend_size #ifdef CONFIG_ARM_CPU_SUSPEND globl_equ cpu_ca8_do_suspend, cpu_v7_do_suspend globl_equ cpu_ca8_do_resume, cpu_v7_do_resume #endif define_processor_functions ca8, dabort=v7_early_abort, pabort=v7_pabort, suspend=1, bugs=cpu_v7_ca8_ibe @ Cortex-A9 - needs more registers preserved across suspend/resume @ and bpiall switch_mm for hardening globl_equ cpu_ca9mp_proc_init, cpu_v7_proc_init globl_equ cpu_ca9mp_proc_fin, cpu_v7_proc_fin globl_equ cpu_ca9mp_reset, cpu_v7_reset globl_equ cpu_ca9mp_do_idle, cpu_v7_do_idle globl_equ cpu_ca9mp_dcache_clean_area, cpu_v7_dcache_clean_area #ifdef CONFIG_HARDEN_BRANCH_PREDICTOR globl_equ cpu_ca9mp_switch_mm, cpu_v7_bpiall_switch_mm #else globl_equ cpu_ca9mp_switch_mm, cpu_v7_switch_mm #endif globl_equ cpu_ca9mp_set_pte_ext, cpu_v7_set_pte_ext define_processor_functions ca9mp, dabort=v7_early_abort, pabort=v7_pabort, suspend=1 #endif @ Cortex-A15 - needs iciallu switch_mm for hardening globl_equ cpu_ca15_proc_init, cpu_v7_proc_init globl_equ cpu_ca15_proc_fin, cpu_v7_proc_fin globl_equ cpu_ca15_reset, cpu_v7_reset globl_equ cpu_ca15_do_idle, cpu_v7_do_idle globl_equ cpu_ca15_dcache_clean_area, cpu_v7_dcache_clean_area #ifdef CONFIG_HARDEN_BRANCH_PREDICTOR globl_equ cpu_ca15_switch_mm, cpu_v7_iciallu_switch_mm #else globl_equ cpu_ca15_switch_mm, cpu_v7_switch_mm #endif globl_equ cpu_ca15_set_pte_ext, cpu_v7_set_pte_ext globl_equ cpu_ca15_suspend_size, cpu_v7_suspend_size globl_equ cpu_ca15_do_suspend, cpu_v7_do_suspend globl_equ cpu_ca15_do_resume, cpu_v7_do_resume define_processor_functions ca15, dabort=v7_early_abort, pabort=v7_pabort, suspend=1, bugs=cpu_v7_ca15_ibe #ifdef CONFIG_CPU_PJ4B define_processor_functions pj4b, dabort=v7_early_abort, pabort=v7_pabort, suspend=1 #endif .section ".rodata" string cpu_arch_name, "armv7" string cpu_elf_name, "v7" .align .section ".proc.info.init", #alloc /* * Standard v7 proc info content */ .macro __v7_proc name, initfunc, mm_mmuflags = 0, io_mmuflags = 0, hwcaps = 0, proc_fns = v7_processor_functions, cache_fns = v7_cache_fns 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 initfn \initfunc, \name .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 \proc_fns .long v7wbi_tlb_fns .long v6_user_fns .long \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_proc_info, __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_proc_info, __v7_ca9mp_setup, proc_fns = ca9mp_processor_functions .size __v7_ca9mp_proc_info, . - __v7_ca9mp_proc_info /* * ARM Ltd. Cortex A8 processor. */ .type __v7_ca8_proc_info, #object __v7_ca8_proc_info: .long 0x410fc080 .long 0xff0ffff0 __v7_proc __v7_ca8_proc_info, __v7_setup, proc_fns = ca8_processor_functions .size __v7_ca8_proc_info, . - __v7_ca8_proc_info #endif /* CONFIG_ARM_LPAE */ /* * Marvell PJ4B processor. */ #ifdef CONFIG_CPU_PJ4B .type __v7_pj4b_proc_info, #object __v7_pj4b_proc_info: .long 0x560f5800 .long 0xff0fff00 __v7_proc __v7_pj4b_proc_info, __v7_pj4b_setup, proc_fns = pj4b_processor_functions .size __v7_pj4b_proc_info, . - __v7_pj4b_proc_info #endif /* * ARM Ltd. Cortex R7 processor. */ .type __v7_cr7mp_proc_info, #object __v7_cr7mp_proc_info: .long 0x410fc170 .long 0xff0ffff0 __v7_proc __v7_cr7mp_proc_info, __v7_cr7mp_setup .size __v7_cr7mp_proc_info, . - __v7_cr7mp_proc_info /* * ARM Ltd. Cortex A7 processor. */ .type __v7_ca7mp_proc_info, #object __v7_ca7mp_proc_info: .long 0x410fc070 .long 0xff0ffff0 __v7_proc __v7_ca7mp_proc_info, __v7_ca7mp_setup .size __v7_ca7mp_proc_info, . - __v7_ca7mp_proc_info /* * ARM Ltd. Cortex A12 processor. */ .type __v7_ca12mp_proc_info, #object __v7_ca12mp_proc_info: .long 0x410fc0d0 .long 0xff0ffff0 __v7_proc __v7_ca12mp_proc_info, __v7_ca12mp_setup, proc_fns = HARDENED_BPIALL_PROCESSOR_FUNCTIONS .size __v7_ca12mp_proc_info, . - __v7_ca12mp_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_proc_info, __v7_ca15mp_setup, proc_fns = ca15_processor_functions .size __v7_ca15mp_proc_info, . - __v7_ca15mp_proc_info /* * Broadcom Corporation Brahma-B15 processor. */ .type __v7_b15mp_proc_info, #object __v7_b15mp_proc_info: .long 0x420f00f0 .long 0xff0ffff0 __v7_proc __v7_b15mp_proc_info, __v7_b15mp_setup, proc_fns = ca15_processor_functions, cache_fns = b15_cache_fns .size __v7_b15mp_proc_info, . - __v7_b15mp_proc_info /* * ARM Ltd. Cortex A17 processor. */ .type __v7_ca17mp_proc_info, #object __v7_ca17mp_proc_info: .long 0x410fc0e0 .long 0xff0ffff0 __v7_proc __v7_ca17mp_proc_info, __v7_ca17mp_setup, proc_fns = HARDENED_BPIALL_PROCESSOR_FUNCTIONS .size __v7_ca17mp_proc_info, . - __v7_ca17mp_proc_info /* ARM Ltd. Cortex A73 processor */ .type __v7_ca73_proc_info, #object __v7_ca73_proc_info: .long 0x410fd090 .long 0xff0ffff0 __v7_proc __v7_ca73_proc_info, __v7_setup, proc_fns = HARDENED_BPIALL_PROCESSOR_FUNCTIONS .size __v7_ca73_proc_info, . - __v7_ca73_proc_info /* ARM Ltd. Cortex A75 processor */ .type __v7_ca75_proc_info, #object __v7_ca75_proc_info: .long 0x410fd0a0 .long 0xff0ffff0 __v7_proc __v7_ca75_proc_info, __v7_setup, proc_fns = HARDENED_BPIALL_PROCESSOR_FUNCTIONS .size __v7_ca75_proc_info, . - __v7_ca75_proc_info /* * Qualcomm Inc. Krait processors. */ .type __krait_proc_info, #object __krait_proc_info: .long 0x510f0400 @ Required ID value .long 0xff0ffc00 @ Mask for ID /* * Some Krait processors don't indicate support for SDIV and UDIV * instructions in the ARM instruction set, even though they actually * do support them. They also don't indicate support for fused multiply * instructions even though they actually do support them. */ __v7_proc __krait_proc_info, __v7_setup, hwcaps = HWCAP_IDIV | HWCAP_VFPv4 .size __krait_proc_info, . - __krait_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_proc_info, __v7_setup .size __v7_proc_info, . - __v7_proc_info