diff options
Diffstat (limited to 'arch/arc')
| -rw-r--r-- | arch/arc/Kconfig | 3 | ||||
| -rw-r--r-- | arch/arc/boot/.gitignore | 1 | ||||
| -rw-r--r-- | arch/arc/boot/dts/nsimosci.dts | 12 | ||||
| -rw-r--r-- | arch/arc/boot/dts/skeleton.dts | 10 | ||||
| -rw-r--r-- | arch/arc/configs/nsimosci_defconfig | 1 | ||||
| -rw-r--r-- | arch/arc/include/asm/Kbuild | 7 | ||||
| -rw-r--r-- | arch/arc/include/asm/barrier.h | 37 | ||||
| -rw-r--r-- | arch/arc/include/asm/linkage.h | 14 | ||||
| -rw-r--r-- | arch/arc/kernel/ctx_sw_asm.S | 2 | ||||
| -rw-r--r-- | arch/arc/kernel/entry.S | 52 | ||||
| -rw-r--r-- | arch/arc/kernel/head.S | 7 | ||||
| -rw-r--r-- | arch/arc/kernel/time.c | 37 | ||||
| -rw-r--r-- | arch/arc/lib/memcmp.S | 6 | ||||
| -rw-r--r-- | arch/arc/lib/memcpy-700.S | 6 | ||||
| -rw-r--r-- | arch/arc/lib/memset.S | 10 | ||||
| -rw-r--r-- | arch/arc/lib/strchr-700.S | 6 | ||||
| -rw-r--r-- | arch/arc/lib/strcmp.S | 6 | ||||
| -rw-r--r-- | arch/arc/lib/strcpy-700.S | 6 | ||||
| -rw-r--r-- | arch/arc/lib/strlen.S | 6 | ||||
| -rw-r--r-- | arch/arc/mm/cache_arc700.c | 7 | ||||
| -rw-r--r-- | arch/arc/mm/init.c | 27 | ||||
| -rw-r--r-- | arch/arc/mm/tlbex.S | 10 | ||||
| -rw-r--r-- | arch/arc/plat-arcfpga/Kconfig | 1 | ||||
| -rw-r--r-- | arch/arc/plat-arcfpga/platform.c | 6 |
24 files changed, 121 insertions, 159 deletions
diff --git a/arch/arc/Kconfig b/arch/arc/Kconfig index 9be30c8cb0c2..9596b0ab108d 100644 --- a/arch/arc/Kconfig +++ b/arch/arc/Kconfig @@ -57,7 +57,7 @@ config ARCH_FLATMEM_ENABLE config MMU def_bool y -config NO_IOPORT +config NO_IOPORT_MAP def_bool y config GENERIC_CALIBRATE_DELAY @@ -356,7 +356,6 @@ config ARC_CURR_IN_REG config ARC_MISALIGN_ACCESS bool "Emulate unaligned memory access (userspace only)" - default N select SYSCTL_ARCH_UNALIGN_NO_WARN select SYSCTL_ARCH_UNALIGN_ALLOW help diff --git a/arch/arc/boot/.gitignore b/arch/arc/boot/.gitignore index 5d65b54bf17a..5246969a20c5 100644 --- a/arch/arc/boot/.gitignore +++ b/arch/arc/boot/.gitignore @@ -1 +1,2 @@ *.dtb* +uImage diff --git a/arch/arc/boot/dts/nsimosci.dts b/arch/arc/boot/dts/nsimosci.dts index ea16d782af58..4f31b2eb5cdf 100644 --- a/arch/arc/boot/dts/nsimosci.dts +++ b/arch/arc/boot/dts/nsimosci.dts @@ -11,13 +11,16 @@ / { compatible = "snps,nsimosci"; - clock-frequency = <80000000>; /* 80 MHZ */ + clock-frequency = <20000000>; /* 20 MHZ */ #address-cells = <1>; #size-cells = <1>; interrupt-parent = <&intc>; chosen { - bootargs = "console=tty0 consoleblank=0"; + /* this is for console on PGU */ + /* bootargs = "console=tty0 consoleblank=0"; */ + /* this is for console on serial */ + bootargs = "earlycon=uart8250,mmio32,0xc0000000,115200n8 console=ttyS0,115200n8 consoleblank=0 debug"; }; aliases { @@ -44,15 +47,14 @@ }; uart0: serial@c0000000 { - compatible = "snps,dw-apb-uart"; + compatible = "ns8250"; reg = <0xc0000000 0x2000>; interrupts = <11>; - #clock-frequency = <80000000>; clock-frequency = <3686400>; baud = <115200>; reg-shift = <2>; reg-io-width = <4>; - status = "okay"; + no-loopback-test = <1>; }; pgu0: pgu@c9000000 { diff --git a/arch/arc/boot/dts/skeleton.dts b/arch/arc/boot/dts/skeleton.dts deleted file mode 100644 index 25a84fb5b3dc..000000000000 --- a/arch/arc/boot/dts/skeleton.dts +++ /dev/null @@ -1,10 +0,0 @@ -/* - * Copyright (C) 2012 Synopsys, Inc. (www.synopsys.com) - * - * 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. - */ -/dts-v1/; - -/include/ "skeleton.dtsi" diff --git a/arch/arc/configs/nsimosci_defconfig b/arch/arc/configs/nsimosci_defconfig index 451af30914f6..c01ba35a4eff 100644 --- a/arch/arc/configs/nsimosci_defconfig +++ b/arch/arc/configs/nsimosci_defconfig @@ -54,6 +54,7 @@ CONFIG_SERIO_ARC_PS2=y CONFIG_SERIAL_8250=y CONFIG_SERIAL_8250_CONSOLE=y CONFIG_SERIAL_8250_DW=y +CONFIG_SERIAL_OF_PLATFORM=y CONFIG_SERIAL_ARC=y CONFIG_SERIAL_ARC_CONSOLE=y # CONFIG_HW_RANDOM is not set diff --git a/arch/arc/include/asm/Kbuild b/arch/arc/include/asm/Kbuild index 0d3362991c31..e76fd79f32b0 100644 --- a/arch/arc/include/asm/Kbuild +++ b/arch/arc/include/asm/Kbuild @@ -1,15 +1,15 @@ generic-y += auxvec.h generic-y += barrier.h -generic-y += bugs.h generic-y += bitsperlong.h +generic-y += bugs.h generic-y += clkdev.h generic-y += cputime.h generic-y += device.h generic-y += div64.h generic-y += emergency-restart.h generic-y += errno.h -generic-y += fcntl.h generic-y += fb.h +generic-y += fcntl.h generic-y += ftrace.h generic-y += hardirq.h generic-y += hash.h @@ -22,6 +22,7 @@ generic-y += kmap_types.h generic-y += kvm_para.h generic-y += local.h generic-y += local64.h +generic-y += mcs_spinlock.h generic-y += mman.h generic-y += msgbuf.h generic-y += param.h @@ -30,6 +31,7 @@ generic-y += pci.h generic-y += percpu.h generic-y += poll.h generic-y += posix_types.h +generic-y += preempt.h generic-y += resource.h generic-y += scatterlist.h generic-y += sembuf.h @@ -48,4 +50,3 @@ generic-y += ucontext.h generic-y += user.h generic-y += vga.h generic-y += xor.h -generic-y += preempt.h diff --git a/arch/arc/include/asm/barrier.h b/arch/arc/include/asm/barrier.h deleted file mode 100644 index c32245c3d1e9..000000000000 --- a/arch/arc/include/asm/barrier.h +++ /dev/null @@ -1,37 +0,0 @@ -/* - * Copyright (C) 2004, 2007-2010, 2011-2012 Synopsys, Inc. (www.synopsys.com) - * - * 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. - */ - -#ifndef __ASM_BARRIER_H -#define __ASM_BARRIER_H - -#ifndef __ASSEMBLY__ - -/* TODO-vineetg: Need to see what this does, don't we need sync anywhere */ -#define mb() __asm__ __volatile__ ("" : : : "memory") -#define rmb() mb() -#define wmb() mb() -#define set_mb(var, value) do { var = value; mb(); } while (0) -#define set_wmb(var, value) do { var = value; wmb(); } while (0) -#define read_barrier_depends() mb() - -/* TODO-vineetg verify the correctness of macros here */ -#ifdef CONFIG_SMP -#define smp_mb() mb() -#define smp_rmb() rmb() -#define smp_wmb() wmb() -#else -#define smp_mb() barrier() -#define smp_rmb() barrier() -#define smp_wmb() barrier() -#endif - -#define smp_read_barrier_depends() do { } while (0) - -#endif - -#endif diff --git a/arch/arc/include/asm/linkage.h b/arch/arc/include/asm/linkage.h index 66ee5527aefc..5faad17118b4 100644 --- a/arch/arc/include/asm/linkage.h +++ b/arch/arc/include/asm/linkage.h @@ -13,20 +13,6 @@ #define ASM_NL ` /* use '`' to mark new line in macro */ -/* Can't use the ENTRY macro in linux/linkage.h - * gas considers ';' as comment vs. newline - */ -.macro ARC_ENTRY name - .global \name - .align 4 - \name: -.endm - -.macro ARC_EXIT name -#define ASM_PREV_SYM_ADDR(name) .-##name - .size \ name, ASM_PREV_SYM_ADDR(\name) -.endm - /* annotation for data we want in DCCM - if enabled in .config */ .macro ARCFP_DATA nm #ifdef CONFIG_ARC_HAS_DCCM diff --git a/arch/arc/kernel/ctx_sw_asm.S b/arch/arc/kernel/ctx_sw_asm.S index 65690e7fcc8c..2ff0347a2fd7 100644 --- a/arch/arc/kernel/ctx_sw_asm.S +++ b/arch/arc/kernel/ctx_sw_asm.S @@ -62,4 +62,4 @@ __switch_to: ld.ab blink, [sp, 4] j [blink] -ARC_EXIT __switch_to +END(__switch_to) diff --git a/arch/arc/kernel/entry.S b/arch/arc/kernel/entry.S index 47d09d07f093..819dd5f7eb05 100644 --- a/arch/arc/kernel/entry.S +++ b/arch/arc/kernel/entry.S @@ -141,7 +141,7 @@ VECTOR EV_Extension ; 0x130, Extn Intruction Excp (0x26) VECTOR reserved ; Reserved Exceptions .endr -#include <linux/linkage.h> /* ARC_{EXTRY,EXIT} */ +#include <linux/linkage.h> /* {EXTRY,EXIT} */ #include <asm/entry.h> /* SAVE_ALL_{INT1,INT2,SYS...} */ #include <asm/errno.h> #include <asm/arcregs.h> @@ -184,7 +184,7 @@ reserved: ; processor restart ; --------------------------------------------- ; Level 2 ISR: Can interrupt a Level 1 ISR ; --------------------------------------------- -ARC_ENTRY handle_interrupt_level2 +ENTRY(handle_interrupt_level2) ; TODO-vineetg for SMP this wont work ; free up r9 as scratchpad @@ -225,14 +225,14 @@ ARC_ENTRY handle_interrupt_level2 b ret_from_exception -ARC_EXIT handle_interrupt_level2 +END(handle_interrupt_level2) #endif ; --------------------------------------------- ; Level 1 ISR ; --------------------------------------------- -ARC_ENTRY handle_interrupt_level1 +ENTRY(handle_interrupt_level1) /* free up r9 as scratchpad */ #ifdef CONFIG_SMP @@ -265,7 +265,7 @@ ARC_ENTRY handle_interrupt_level1 sr r8, [AUX_IRQ_LV12] ; clear bit in Sticky Status Reg b ret_from_exception -ARC_EXIT handle_interrupt_level1 +END(handle_interrupt_level1) ;################### Non TLB Exception Handling ############################# @@ -273,7 +273,7 @@ ARC_EXIT handle_interrupt_level1 ; Instruction Error Exception Handler ; --------------------------------------------- -ARC_ENTRY instr_service +ENTRY(instr_service) EXCEPTION_PROLOGUE @@ -284,13 +284,13 @@ ARC_ENTRY instr_service bl do_insterror_or_kprobe b ret_from_exception -ARC_EXIT instr_service +END(instr_service) ; --------------------------------------------- ; Memory Error Exception Handler ; --------------------------------------------- -ARC_ENTRY mem_service +ENTRY(mem_service) EXCEPTION_PROLOGUE @@ -301,13 +301,13 @@ ARC_ENTRY mem_service bl do_memory_error b ret_from_exception -ARC_EXIT mem_service +END(mem_service) ; --------------------------------------------- ; Machine Check Exception Handler ; --------------------------------------------- -ARC_ENTRY EV_MachineCheck +ENTRY(EV_MachineCheck) EXCEPTION_PROLOGUE @@ -331,13 +331,13 @@ ARC_ENTRY EV_MachineCheck j do_machine_check_fault -ARC_EXIT EV_MachineCheck +END(EV_MachineCheck) ; --------------------------------------------- ; Protection Violation Exception Handler ; --------------------------------------------- -ARC_ENTRY EV_TLBProtV +ENTRY(EV_TLBProtV) EXCEPTION_PROLOGUE @@ -385,12 +385,12 @@ ARC_ENTRY EV_TLBProtV b ret_from_exception -ARC_EXIT EV_TLBProtV +END(EV_TLBProtV) ; --------------------------------------------- ; Privilege Violation Exception Handler ; --------------------------------------------- -ARC_ENTRY EV_PrivilegeV +ENTRY(EV_PrivilegeV) EXCEPTION_PROLOGUE @@ -401,12 +401,12 @@ ARC_ENTRY EV_PrivilegeV bl do_privilege_fault b ret_from_exception -ARC_EXIT EV_PrivilegeV +END(EV_PrivilegeV) ; --------------------------------------------- ; Extension Instruction Exception Handler ; --------------------------------------------- -ARC_ENTRY EV_Extension +ENTRY(EV_Extension) EXCEPTION_PROLOGUE @@ -417,7 +417,7 @@ ARC_ENTRY EV_Extension bl do_extension_fault b ret_from_exception -ARC_EXIT EV_Extension +END(EV_Extension) ;######################### System Call Tracing ######################### @@ -504,7 +504,7 @@ trap_with_param: ; (2) Break Points ;------------------------------------------------------------------ -ARC_ENTRY EV_Trap +ENTRY(EV_Trap) EXCEPTION_PROLOGUE @@ -534,9 +534,9 @@ ARC_ENTRY EV_Trap jl [r9] ; Entry into Sys Call Handler ; fall through to ret_from_system_call -ARC_EXIT EV_Trap +END(EV_Trap) -ARC_ENTRY ret_from_system_call +ENTRY(ret_from_system_call) st r0, [sp, PT_r0] ; sys call return value in pt_regs @@ -546,7 +546,7 @@ ARC_ENTRY ret_from_system_call ; ; If ret to user mode do we need to handle signals, schedule() et al. -ARC_ENTRY ret_from_exception +ENTRY(ret_from_exception) ; Pre-{IRQ,Trap,Exception} K/U mode from pt_regs->status32 ld r8, [sp, PT_status32] ; returning to User/Kernel Mode @@ -726,9 +726,9 @@ not_level1_interrupt: debug_marker_syscall: rtie -ARC_EXIT ret_from_exception +END(ret_from_exception) -ARC_ENTRY ret_from_fork +ENTRY(ret_from_fork) ; when the forked child comes here from the __switch_to function ; r0 has the last task pointer. ; put last task in scheduler queue @@ -745,11 +745,11 @@ ARC_ENTRY ret_from_fork ; special case of kernel_thread entry point returning back due to ; kernel_execve() - pretend return from syscall to ret to userland b ret_from_exception -ARC_EXIT ret_from_fork +END(ret_from_fork) ;################### Special Sys Call Wrappers ########################## -ARC_ENTRY sys_clone_wrapper +ENTRY(sys_clone_wrapper) SAVE_CALLEE_SAVED_USER bl @sys_clone DISCARD_CALLEE_SAVED_USER @@ -759,7 +759,7 @@ ARC_ENTRY sys_clone_wrapper bnz tracesys_exit b ret_from_system_call -ARC_EXIT sys_clone_wrapper +END(sys_clone_wrapper) #ifdef CONFIG_ARC_DW2_UNWIND ; Workaround for bug 94179 (STAR ): diff --git a/arch/arc/kernel/head.S b/arch/arc/kernel/head.S index 991997269d02..4ad04915dc6b 100644 --- a/arch/arc/kernel/head.S +++ b/arch/arc/kernel/head.S @@ -24,13 +24,13 @@ .globl stext stext: ;------------------------------------------------------------------- - ; Don't clobber r0-r4 yet. It might have bootloader provided info + ; Don't clobber r0-r2 yet. It might have bootloader provided info ;------------------------------------------------------------------- sr @_int_vec_base_lds, [AUX_INTR_VEC_BASE] #ifdef CONFIG_SMP - ; Only Boot (Master) proceeds. Others wait in platform dependent way + ; Ensure Boot (Master) proceeds. Others wait in platform dependent way ; IDENTITY Reg [ 3 2 1 0 ] ; (cpu-id) ^^^ => Zero for UP ARC700 ; => #Core-ID if SMP (Master 0) @@ -39,7 +39,8 @@ stext: ; need to make sure only boot cpu takes this path. GET_CPU_ID r5 cmp r5, 0 - jnz arc_platform_smp_wait_to_boot + mov.ne r0, r5 + jne arc_platform_smp_wait_to_boot #endif ; Clear BSS before updating any globals ; XXX: use ZOL here diff --git a/arch/arc/kernel/time.c b/arch/arc/kernel/time.c index e5f3a837fb35..71c42521c77f 100644 --- a/arch/arc/kernel/time.c +++ b/arch/arc/kernel/time.c @@ -155,22 +155,6 @@ static void arc_timer_event_setup(unsigned int limit) write_aux_reg(ARC_REG_TIMER0_CTRL, TIMER_CTRL_IE | TIMER_CTRL_NH); } -/* - * Acknowledge the interrupt (oneshot) and optionally re-arm it (periodic) - * -Any write to CTRL Reg will ack the intr (NH bit: Count when not halted) - * -Rearming is done by setting the IE bit - * - * Small optimisation: Normal code would have been - * if (irq_reenable) - * CTRL_REG = (IE | NH); - * else - * CTRL_REG = NH; - * However since IE is BIT0 we can fold the branch - */ -static void arc_timer_event_ack(unsigned int irq_reenable) -{ - write_aux_reg(ARC_REG_TIMER0_CTRL, irq_reenable | TIMER_CTRL_NH); -} static int arc_clkevent_set_next_event(unsigned long delta, struct clock_event_device *dev) @@ -207,10 +191,22 @@ static DEFINE_PER_CPU(struct clock_event_device, arc_clockevent_device) = { static irqreturn_t timer_irq_handler(int irq, void *dev_id) { - struct clock_event_device *clk = this_cpu_ptr(&arc_clockevent_device); + /* + * Note that generic IRQ core could have passed @evt for @dev_id if + * irq_set_chip_and_handler() asked for handle_percpu_devid_irq() + */ + struct clock_event_device *evt = this_cpu_ptr(&arc_clockevent_device); + int irq_reenable = evt->mode == CLOCK_EVT_MODE_PERIODIC; + + /* + * Any write to CTRL reg ACks the interrupt, we rewrite the + * Count when [N]ot [H]alted bit. + * And re-arm it if perioid by [I]nterrupt [E]nable bit + */ + write_aux_reg(ARC_REG_TIMER0_CTRL, irq_reenable | TIMER_CTRL_NH); + + evt->event_handler(evt); - arc_timer_event_ack(clk->mode == CLOCK_EVT_MODE_PERIODIC); - clk->event_handler(clk); return IRQ_HANDLED; } @@ -222,9 +218,8 @@ static struct irqaction arc_timer_irq = { /* * Setup the local event timer for @cpu - * N.B. weak so that some exotic ARC SoCs can completely override it */ -void __weak arc_local_timer_setup(unsigned int cpu) +void arc_local_timer_setup(unsigned int cpu) { struct clock_event_device *clk = &per_cpu(arc_clockevent_device, cpu); diff --git a/arch/arc/lib/memcmp.S b/arch/arc/lib/memcmp.S index bc813d55b6c3..978bf8314dfb 100644 --- a/arch/arc/lib/memcmp.S +++ b/arch/arc/lib/memcmp.S @@ -6,7 +6,7 @@ * published by the Free Software Foundation. */ -#include <asm/linkage.h> +#include <linux/linkage.h> #ifdef __LITTLE_ENDIAN__ #define WORD2 r2 @@ -16,7 +16,7 @@ #define SHIFT r2 #endif -ARC_ENTRY memcmp +ENTRY(memcmp) or r12,r0,r1 asl_s r12,r12,30 sub r3,r2,1 @@ -121,4 +121,4 @@ ARC_ENTRY memcmp .Lnil: j_s.d [blink] mov r0,0 -ARC_EXIT memcmp +END(memcmp) diff --git a/arch/arc/lib/memcpy-700.S b/arch/arc/lib/memcpy-700.S index b64cc10ac918..3222573e50de 100644 --- a/arch/arc/lib/memcpy-700.S +++ b/arch/arc/lib/memcpy-700.S @@ -6,9 +6,9 @@ * published by the Free Software Foundation. */ -#include <asm/linkage.h> +#include <linux/linkage.h> -ARC_ENTRY memcpy +ENTRY(memcpy) or r3,r0,r1 asl_s r3,r3,30 mov_s r5,r0 @@ -63,4 +63,4 @@ ARC_ENTRY memcpy .Lendbloop: j_s.d [blink] stb r12,[r5,0] -ARC_EXIT memcpy +END(memcpy) diff --git a/arch/arc/lib/memset.S b/arch/arc/lib/memset.S index 9b2d88d2e141..d36bd43fc98d 100644 --- a/arch/arc/lib/memset.S +++ b/arch/arc/lib/memset.S @@ -6,11 +6,11 @@ * published by the Free Software Foundation. */ -#include <asm/linkage.h> +#include <linux/linkage.h> #define SMALL 7 /* Must be at least 6 to deal with alignment/loop issues. */ -ARC_ENTRY memset +ENTRY(memset) mov_s r4,r0 or r12,r0,r2 bmsk.f r12,r12,1 @@ -46,14 +46,14 @@ ARC_ENTRY memset stb.ab r1,[r4,1] .Ltiny_end: j_s [blink] -ARC_EXIT memset +END(memset) ; memzero: @r0 = mem, @r1 = size_t ; memset: @r0 = mem, @r1 = char, @r2 = size_t -ARC_ENTRY memzero +ENTRY(memzero) ; adjust bzero args to memset args mov r2, r1 mov r1, 0 b memset ;tail call so need to tinker with blink -ARC_EXIT memzero +END(memzero) diff --git a/arch/arc/lib/strchr-700.S b/arch/arc/lib/strchr-700.S index 9c548c7cf001..b725d5862107 100644 --- a/arch/arc/lib/strchr-700.S +++ b/arch/arc/lib/strchr-700.S @@ -11,9 +11,9 @@ presence of the norm instruction makes it easier to operate on whole words branch-free. */ -#include <asm/linkage.h> +#include <linux/linkage.h> -ARC_ENTRY strchr +ENTRY(strchr) extb_s r1,r1 asl r5,r1,8 bmsk r2,r0,1 @@ -130,4 +130,4 @@ ARC_ENTRY strchr j_s.d [blink] mov.mi r0,0 #endif /* ENDIAN */ -ARC_EXIT strchr +END(strchr) diff --git a/arch/arc/lib/strcmp.S b/arch/arc/lib/strcmp.S index 5dc802b45cf3..3544600fefe6 100644 --- a/arch/arc/lib/strcmp.S +++ b/arch/arc/lib/strcmp.S @@ -13,9 +13,9 @@ source 1; however, that would increase the overhead for loop setup / finish, and strcmp might often terminate early. */ -#include <asm/linkage.h> +#include <linux/linkage.h> -ARC_ENTRY strcmp +ENTRY(strcmp) or r2,r0,r1 bmsk_s r2,r2,1 brne r2,0,.Lcharloop @@ -93,4 +93,4 @@ ARC_ENTRY strcmp .Lcmpend: j_s.d [blink] sub r0,r2,r3 -ARC_EXIT strcmp +END(strcmp) diff --git a/arch/arc/lib/strcpy-700.S b/arch/arc/lib/strcpy-700.S index b7ca4ae81d88..8422f38e1218 100644 --- a/arch/arc/lib/strcpy-700.S +++ b/arch/arc/lib/strcpy-700.S @@ -16,9 +16,9 @@ there, but the it is not likely to be taken often, and it would also be likey to cost an unaligned mispredict at the next call. */ -#include <asm/linkage.h> +#include <linux/linkage.h> -ARC_ENTRY strcpy +ENTRY(strcpy) or r2,r0,r1 bmsk_s r2,r2,1 brne.d r2,0,charloop @@ -67,4 +67,4 @@ charloop: brne.d r3,0,charloop stb.ab r3,[r10,1] j [blink] -ARC_EXIT strcpy +END(strcpy) diff --git a/arch/arc/lib/strlen.S b/arch/arc/lib/strlen.S index 39759e099696..53cfd5685a5f 100644 --- a/arch/arc/lib/strlen.S +++ b/arch/arc/lib/strlen.S @@ -6,9 +6,9 @@ * published by the Free Software Foundation. */ -#include <asm/linkage.h> +#include <linux/linkage.h> -ARC_ENTRY strlen +ENTRY(strlen) or r3,r0,7 ld r2,[r3,-7] ld.a r6,[r3,-3] @@ -80,4 +80,4 @@ ARC_ENTRY strlen .Learly_end: b.d .Lend sub_s.ne r1,r1,r1 -ARC_EXIT strlen +END(strlen) diff --git a/arch/arc/mm/cache_arc700.c b/arch/arc/mm/cache_arc700.c index 6b58c1de7577..89edf7961a2f 100644 --- a/arch/arc/mm/cache_arc700.c +++ b/arch/arc/mm/cache_arc700.c @@ -100,10 +100,9 @@ #define DC_CTRL_INV_MODE_FLUSH 0x40 #define DC_CTRL_FLUSH_STATUS 0x100 -char *arc_cache_mumbojumbo(int cpu_id, char *buf, int len) +char *arc_cache_mumbojumbo(int c, char *buf, int len) { int n = 0; - unsigned int c = smp_processor_id(); #define PR_CACHE(p, enb, str) \ { \ @@ -282,7 +281,7 @@ static inline void __cache_line_loop(unsigned long paddr, unsigned long vaddr, #else /* if V-P const for loop, PTAG can be written once outside loop */ if (full_page_op) - write_aux_reg(ARC_REG_DC_PTAG, paddr); + write_aux_reg(aux_tag, paddr); #endif while (num_lines-- > 0) { @@ -296,7 +295,7 @@ static inline void __cache_line_loop(unsigned long paddr, unsigned long vaddr, write_aux_reg(aux_cmd, vaddr); vaddr += L1_CACHE_BYTES; #else - write_aux_reg(aux, paddr); + write_aux_reg(aux_cmd, paddr); paddr += L1_CACHE_BYTES; #endif } diff --git a/arch/arc/mm/init.c b/arch/arc/mm/init.c index 55e0a85bea78..523412369f70 100644 --- a/arch/arc/mm/init.c +++ b/arch/arc/mm/init.c @@ -10,6 +10,9 @@ #include <linux/mm.h> #include <linux/bootmem.h> #include <linux/memblock.h> +#ifdef CONFIG_BLK_DEV_INITRD +#include <linux/initrd.h> +#endif #include <linux/swap.h> #include <linux/module.h> #include <asm/page.h> @@ -42,6 +45,24 @@ void __init early_init_dt_add_memory_arch(u64 base, u64 size) pr_info("Memory size set via devicetree %ldM\n", TO_MB(arc_mem_sz)); } +#ifdef CONFIG_BLK_DEV_INITRD +static int __init early_initrd(char *p) +{ + unsigned long start, size; + char *endp; + + start = memparse(p, &endp); + if (*endp == ',') { + size = memparse(endp + 1, NULL); + + initrd_start = (unsigned long)__va(start); + initrd_end = (unsigned long)__va(start + size); + } + return 0; +} +early_param("initrd", early_initrd); +#endif + /* * First memory setup routine called from setup_arch() * 1. setup swapper's mm @init_mm @@ -80,6 +101,12 @@ void __init setup_arch_memory(void) memblock_reserve(CONFIG_LINUX_LINK_BASE, __pa(_end) - CONFIG_LINUX_LINK_BASE); +#ifdef CONFIG_BLK_DEV_INITRD + /*------------- reserve initrd image -----------------------*/ + if (initrd_start) + memblock_reserve(__pa(initrd_start), initrd_end - initrd_start); +#endif + memblock_dump_all(); /*-------------- node setup --------------------------------*/ diff --git a/arch/arc/mm/tlbex.S b/arch/arc/mm/tlbex.S index 3fcfdb38d242..79bfc81358c9 100644 --- a/arch/arc/mm/tlbex.S +++ b/arch/arc/mm/tlbex.S @@ -260,7 +260,7 @@ ARCFP_CODE ;Fast Path Code, candidate for ICCM ; I-TLB Miss Exception Handler ;----------------------------------------------------------------------------- -ARC_ENTRY EV_TLBMissI +ENTRY(EV_TLBMissI) TLBMISS_FREEUP_REGS @@ -293,13 +293,13 @@ ARC_ENTRY EV_TLBMissI TLBMISS_RESTORE_REGS rtie -ARC_EXIT EV_TLBMissI +END(EV_TLBMissI) ;----------------------------------------------------------------------------- ; D-TLB Miss Exception Handler ;----------------------------------------------------------------------------- -ARC_ENTRY EV_TLBMissD +ENTRY(EV_TLBMissD) TLBMISS_FREEUP_REGS @@ -381,6 +381,4 @@ do_slow_path_pf: bl do_page_fault b ret_from_exception -ARC_EXIT EV_TLBMissD - -ARC_ENTRY EV_TLBMissB ; Bogus entry to measure sz of DTLBMiss hdlr +END(EV_TLBMissD) diff --git a/arch/arc/plat-arcfpga/Kconfig b/arch/arc/plat-arcfpga/Kconfig index 295cefeb25d3..33058aa40e77 100644 --- a/arch/arc/plat-arcfpga/Kconfig +++ b/arch/arc/plat-arcfpga/Kconfig @@ -33,7 +33,6 @@ config ISS_SMP_EXTN bool "ARC SMP Extensions (ISS Models only)" default n depends on SMP - select ARC_HAS_COH_RTSC help SMP Extensions to ARC700, in a "simulation only" Model, supported in ARC ISS (Instruction Set Simulator). diff --git a/arch/arc/plat-arcfpga/platform.c b/arch/arc/plat-arcfpga/platform.c index d71f3c3bcf24..19b76b61f44b 100644 --- a/arch/arc/plat-arcfpga/platform.c +++ b/arch/arc/plat-arcfpga/platform.c @@ -201,7 +201,7 @@ static void __init plat_fpga_populate_dev(void) * callback set, by matching the DT compatible name. */ -static const char *aa4_compat[] __initdata = { +static const char *aa4_compat[] __initconst = { "snps,arc-angel4", NULL, }; @@ -216,7 +216,7 @@ MACHINE_START(ANGEL4, "angel4") #endif MACHINE_END -static const char *ml509_compat[] __initdata = { +static const char *ml509_compat[] __initconst = { "snps,arc-ml509", NULL, }; @@ -231,7 +231,7 @@ MACHINE_START(ML509, "ml509") #endif MACHINE_END -static const char *nsimosci_compat[] __initdata = { +static const char *nsimosci_compat[] __initconst = { "snps,nsimosci", NULL, }; |