diff options
author | Olof Johansson <olof@lixom.net> | 2015-04-03 13:20:42 -0700 |
---|---|---|
committer | Olof Johansson <olof@lixom.net> | 2015-04-03 13:20:42 -0700 |
commit | 5602d12a861340e9ed2c17cdefc500fa12b52446 (patch) | |
tree | 2d2776ce7d159a3381b54034e51d36eb7007e50e /arch | |
parent | 0a47acfa16a5043f5fad562abb8e3e4b53367a43 (diff) | |
parent | 27842bb18b004a2802f4b3221c79ce638c4bf6ee (diff) |
Merge tag 'qcom-cleanup-for-4.1' of git://git.kernel.org/pub/scm/linux/kernel/git/galak/linux-qcom into next/cleanup
Merge "qcom cleanup changes for 4.1" from Kumar Gala:
General cleanups for MSM/QCOM for 4.1
* Removal of mach-msm and associated drivers cleanups that have been
ack'd by associated maintainers
* tag 'qcom-cleanup-for-4.1' of git://git.kernel.org/pub/scm/linux/kernel/git/galak/linux-qcom:
mmc: Remove msm_sdcc driver
gpio: Remove gpio-msm-v1 driver
ARM: Remove mach-msm and associated ARM architecture code
+ Linux 4.0-rc3
Signed-off-by: Olof Johansson <olof@lixom.net>
Diffstat (limited to 'arch')
90 files changed, 218 insertions, 8805 deletions
diff --git a/arch/arc/include/asm/processor.h b/arch/arc/include/asm/processor.h index 4e547296831d..52312cb5dbe2 100644 --- a/arch/arc/include/asm/processor.h +++ b/arch/arc/include/asm/processor.h @@ -47,9 +47,6 @@ struct thread_struct { /* Forward declaration, a strange C thing */ struct task_struct; -/* Return saved PC of a blocked thread */ -unsigned long thread_saved_pc(struct task_struct *t); - #define task_pt_regs(p) \ ((struct pt_regs *)(THREAD_SIZE + (void *)task_stack_page(p)) - 1) @@ -72,18 +69,21 @@ unsigned long thread_saved_pc(struct task_struct *t); #define release_segments(mm) do { } while (0) #define KSTK_EIP(tsk) (task_pt_regs(tsk)->ret) +#define KSTK_ESP(tsk) (task_pt_regs(tsk)->sp) /* * Where abouts of Task's sp, fp, blink when it was last seen in kernel mode. * Look in process.c for details of kernel stack layout */ -#define KSTK_ESP(tsk) (tsk->thread.ksp) +#define TSK_K_ESP(tsk) (tsk->thread.ksp) -#define KSTK_REG(tsk, off) (*((unsigned int *)(KSTK_ESP(tsk) + \ +#define TSK_K_REG(tsk, off) (*((unsigned int *)(TSK_K_ESP(tsk) + \ sizeof(struct callee_regs) + off))) -#define KSTK_BLINK(tsk) KSTK_REG(tsk, 4) -#define KSTK_FP(tsk) KSTK_REG(tsk, 0) +#define TSK_K_BLINK(tsk) TSK_K_REG(tsk, 4) +#define TSK_K_FP(tsk) TSK_K_REG(tsk, 0) + +#define thread_saved_pc(tsk) TSK_K_BLINK(tsk) extern void start_thread(struct pt_regs * regs, unsigned long pc, unsigned long usp); diff --git a/arch/arc/include/asm/stacktrace.h b/arch/arc/include/asm/stacktrace.h new file mode 100644 index 000000000000..b29b6064ea14 --- /dev/null +++ b/arch/arc/include/asm/stacktrace.h @@ -0,0 +1,37 @@ +/* + * Copyright (C) 2014-15 Synopsys, Inc. (www.synopsys.com) + * Copyright (C) 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_STACKTRACE_H +#define __ASM_STACKTRACE_H + +#include <linux/sched.h> + +/** + * arc_unwind_core - Unwind the kernel mode stack for an execution context + * @tsk: NULL for current task, specific task otherwise + * @regs: pt_regs used to seed the unwinder {SP, FP, BLINK, PC} + * If NULL, use pt_regs of @tsk (if !NULL) otherwise + * use the current values of {SP, FP, BLINK, PC} + * @consumer_fn: Callback invoked for each frame unwound + * Returns 0 to continue unwinding, -1 to stop + * @arg: Arg to callback + * + * Returns the address of first function in stack + * + * Semantics: + * - synchronous unwinding (e.g. dump_stack): @tsk NULL, @regs NULL + * - Asynchronous unwinding of sleeping task: @tsk !NULL, @regs NULL + * - Asynchronous unwinding of intr/excp etc: @tsk !NULL, @regs !NULL + */ +notrace noinline unsigned int arc_unwind_core( + struct task_struct *tsk, struct pt_regs *regs, + int (*consumer_fn) (unsigned int, void *), + void *arg); + +#endif /* __ASM_STACKTRACE_H */ diff --git a/arch/arc/kernel/process.c b/arch/arc/kernel/process.c index fdd89715d2d3..98c00a2d4dd9 100644 --- a/arch/arc/kernel/process.c +++ b/arch/arc/kernel/process.c @@ -192,29 +192,6 @@ int dump_fpu(struct pt_regs *regs, elf_fpregset_t *fpu) return 0; } -/* - * API: expected by schedular Code: If thread is sleeping where is that. - * What is this good for? it will be always the scheduler or ret_from_fork. - * So we hard code that anyways. - */ -unsigned long thread_saved_pc(struct task_struct *t) -{ - struct pt_regs *regs = task_pt_regs(t); - unsigned long blink = 0; - - /* - * If the thread being queried for in not itself calling this, then it - * implies it is not executing, which in turn implies it is sleeping, - * which in turn implies it got switched OUT by the schedular. - * In that case, it's kernel mode blink can reliably retrieved as per - * the picture above (right above pt_regs). - */ - if (t != current && t->state != TASK_RUNNING) - blink = *((unsigned int *)regs - 1); - - return blink; -} - int elf_check_arch(const struct elf32_hdr *x) { unsigned int eflags; diff --git a/arch/arc/kernel/stacktrace.c b/arch/arc/kernel/stacktrace.c index 9ce47cfe2303..92320d6f737c 100644 --- a/arch/arc/kernel/stacktrace.c +++ b/arch/arc/kernel/stacktrace.c @@ -43,6 +43,10 @@ static void seed_unwind_frame_info(struct task_struct *tsk, struct pt_regs *regs, struct unwind_frame_info *frame_info) { + /* + * synchronous unwinding (e.g. dump_stack) + * - uses current values of SP and friends + */ if (tsk == NULL && regs == NULL) { unsigned long fp, sp, blink, ret; frame_info->task = current; @@ -61,12 +65,17 @@ static void seed_unwind_frame_info(struct task_struct *tsk, frame_info->regs.r63 = ret; frame_info->call_frame = 0; } else if (regs == NULL) { + /* + * Asynchronous unwinding of sleeping task + * - Gets SP etc from task's pt_regs (saved bottom of kernel + * mode stack of task) + */ frame_info->task = tsk; - frame_info->regs.r27 = KSTK_FP(tsk); - frame_info->regs.r28 = KSTK_ESP(tsk); - frame_info->regs.r31 = KSTK_BLINK(tsk); + frame_info->regs.r27 = TSK_K_FP(tsk); + frame_info->regs.r28 = TSK_K_ESP(tsk); + frame_info->regs.r31 = TSK_K_BLINK(tsk); frame_info->regs.r63 = (unsigned int)__switch_to; /* In the prologue of __switch_to, first FP is saved on stack @@ -83,6 +92,10 @@ static void seed_unwind_frame_info(struct task_struct *tsk, frame_info->call_frame = 0; } else { + /* + * Asynchronous unwinding of intr/exception + * - Just uses the pt_regs passed + */ frame_info->task = tsk; frame_info->regs.r27 = regs->fp; @@ -95,7 +108,7 @@ static void seed_unwind_frame_info(struct task_struct *tsk, #endif -static noinline unsigned int +notrace noinline unsigned int arc_unwind_core(struct task_struct *tsk, struct pt_regs *regs, int (*consumer_fn) (unsigned int, void *), void *arg) { diff --git a/arch/arc/kernel/unaligned.c b/arch/arc/kernel/unaligned.c index 7ff5b5c183bb..74db59b6f392 100644 --- a/arch/arc/kernel/unaligned.c +++ b/arch/arc/kernel/unaligned.c @@ -12,6 +12,7 @@ */ #include <linux/types.h> +#include <linux/perf_event.h> #include <linux/ptrace.h> #include <linux/uaccess.h> #include <asm/disasm.h> @@ -253,6 +254,7 @@ int misaligned_fixup(unsigned long address, struct pt_regs *regs, } } + perf_sw_event(PERF_COUNT_SW_ALIGNMENT_FAULTS, 1, regs, address); return 0; fault: diff --git a/arch/arc/mm/fault.c b/arch/arc/mm/fault.c index 563cb27e37f5..6a2e006cbcce 100644 --- a/arch/arc/mm/fault.c +++ b/arch/arc/mm/fault.c @@ -14,6 +14,7 @@ #include <linux/ptrace.h> #include <linux/uaccess.h> #include <linux/kdebug.h> +#include <linux/perf_event.h> #include <asm/pgalloc.h> #include <asm/mmu.h> @@ -139,13 +140,20 @@ good_area: return; } + perf_sw_event(PERF_COUNT_SW_PAGE_FAULTS, 1, regs, address); + if (likely(!(fault & VM_FAULT_ERROR))) { if (flags & FAULT_FLAG_ALLOW_RETRY) { /* To avoid updating stats twice for retry case */ - if (fault & VM_FAULT_MAJOR) + if (fault & VM_FAULT_MAJOR) { tsk->maj_flt++; - else + perf_sw_event(PERF_COUNT_SW_PAGE_FAULTS_MAJ, 1, + regs, address); + } else { tsk->min_flt++; + perf_sw_event(PERF_COUNT_SW_PAGE_FAULTS_MIN, 1, + regs, address); + } if (fault & VM_FAULT_RETRY) { flags &= ~FAULT_FLAG_ALLOW_RETRY; diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index f6c5b05e8de8..3b11aacef2c3 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -625,18 +625,6 @@ config ARCH_PXA help Support for Intel/Marvell's PXA2xx/PXA3xx processor line. -config ARCH_MSM - bool "Qualcomm MSM (non-multiplatform)" - select ARCH_REQUIRE_GPIOLIB - select COMMON_CLK - select GENERIC_CLOCKEVENTS - help - Support for Qualcomm MSM/QSD based systems. This runs on the - apps processor of the MSM/QSD and depends on a shared memory - interface to the modem processor which runs the baseband - stack and controls some vital subsystems - (clock and power control, etc). - config ARCH_SHMOBILE_LEGACY bool "Renesas ARM SoCs (non-multiplatform)" select ARCH_SHMOBILE @@ -890,8 +878,6 @@ source "arch/arm/mach-ks8695/Kconfig" source "arch/arm/mach-meson/Kconfig" -source "arch/arm/mach-msm/Kconfig" - source "arch/arm/mach-moxart/Kconfig" source "arch/arm/mach-mv78xx0/Kconfig" diff --git a/arch/arm/Kconfig.debug b/arch/arm/Kconfig.debug index f2aa6c7af196..750ccde6a8ed 100644 --- a/arch/arm/Kconfig.debug +++ b/arch/arm/Kconfig.debug @@ -448,25 +448,6 @@ choice Say Y here if you want kernel low-level debugging support on MMP UART3. - config DEBUG_MSM_UART - bool "Kernel low-level debugging messages via MSM UART" - depends on ARCH_MSM - help - Say Y here if you want the debug print routines to direct - their output to the serial port on MSM devices. - - ARCH DEBUG_UART_PHYS DEBUG_UART_VIRT # - MSM7X00A, QSD8X50 0xa9a00000 0xe1000000 UART1 - MSM7X00A, QSD8X50 0xa9b00000 0xe1000000 UART2 - MSM7X00A, QSD8X50 0xa9c00000 0xe1000000 UART3 - - MSM7X30 0xaca00000 0xe1000000 UART1 - MSM7X30 0xacb00000 0xe1000000 UART2 - MSM7X30 0xacc00000 0xe1000000 UART3 - - Please adjust DEBUG_UART_PHYS and DEBUG_UART_BASE configuration - options based on your needs. - config DEBUG_QCOM_UARTDM bool "Kernel low-level debugging messages via QCOM UARTDM" depends on ARCH_QCOM @@ -1295,7 +1276,7 @@ config DEBUG_LL_INCLUDE DEBUG_IMX6SL_UART || \ DEBUG_IMX6SX_UART default "debug/ks8695.S" if DEBUG_KS8695_UART - default "debug/msm.S" if DEBUG_MSM_UART || DEBUG_QCOM_UARTDM + default "debug/msm.S" if DEBUG_QCOM_UARTDM default "debug/netx.S" if DEBUG_NETX_UART default "debug/omap2plus.S" if DEBUG_OMAP2PLUS_UART default "debug/renesas-scif.S" if DEBUG_R7S72100_SCIF2 @@ -1388,7 +1369,6 @@ config DEBUG_UART_PHYS default 0x80230000 if DEBUG_PICOXCELL_UART default 0x808c0000 if ARCH_EP93XX default 0x90020000 if DEBUG_NSPIRE_CLASSIC_UART || DEBUG_NSPIRE_CX_UART - default 0xa9a00000 if DEBUG_MSM_UART default 0xb0060000 if DEBUG_SIRFPRIMA2_UART1 default 0xb0090000 if DEBUG_VEXPRESS_UART0_CRX default 0xc0013000 if DEBUG_U300_UART @@ -1433,7 +1413,7 @@ config DEBUG_UART_PHYS DEBUG_LL_UART_8250 || DEBUG_LL_UART_PL01X || \ DEBUG_LL_UART_EFM32 || \ DEBUG_UART_8250 || DEBUG_UART_PL01X || DEBUG_MESON_UARTAO || \ - DEBUG_MSM_UART || DEBUG_NETX_UART || \ + DEBUG_NETX_UART || \ DEBUG_QCOM_UARTDM || DEBUG_R7S72100_SCIF2 || \ DEBUG_RCAR_GEN1_SCIF0 || DEBUG_RCAR_GEN1_SCIF2 || \ DEBUG_RCAR_GEN2_SCIF0 || DEBUG_RCAR_GEN2_SCIF2 || \ @@ -1446,7 +1426,6 @@ config DEBUG_UART_VIRT hex "Virtual base address of debug UART" default 0xe0000a00 if DEBUG_NETX_UART default 0xe0010fe0 if ARCH_RPC - default 0xe1000000 if DEBUG_MSM_UART default 0xf0000be0 if ARCH_EBSA110 default 0xf0010000 if DEBUG_ASM9260_UART default 0xf01fb000 if DEBUG_NOMADIK_UART @@ -1526,7 +1505,7 @@ config DEBUG_UART_VIRT default DEBUG_UART_PHYS if !MMU depends on DEBUG_LL_UART_8250 || DEBUG_LL_UART_PL01X || \ DEBUG_UART_8250 || DEBUG_UART_PL01X || DEBUG_MESON_UARTAO || \ - DEBUG_MSM_UART || DEBUG_NETX_UART || \ + DEBUG_NETX_UART || \ DEBUG_QCOM_UARTDM || DEBUG_S3C24XX_UART || \ DEBUG_UART_BCM63XX || DEBUG_ASM9260_UART || \ DEBUG_SIRFSOC_UART || DEBUG_DIGICOLOR_UA0 @@ -1556,7 +1535,7 @@ config DEBUG_UART_8250_FLOW_CONTROL config DEBUG_UNCOMPRESS bool - depends on ARCH_MULTIPLATFORM || ARCH_MSM || PLAT_SAMSUNG + depends on ARCH_MULTIPLATFORM || PLAT_SAMSUNG default y if DEBUG_LL && !DEBUG_OMAP2PLUS_UART && \ (!DEBUG_TEGRA_UART || !ZBOOT_ROM) help diff --git a/arch/arm/Makefile b/arch/arm/Makefile index 7f99cd652203..fa03c13ddfec 100644 --- a/arch/arm/Makefile +++ b/arch/arm/Makefile @@ -136,7 +136,6 @@ textofs-$(CONFIG_PM_H1940) := 0x00108000 ifeq ($(CONFIG_ARCH_SA1100),y) textofs-$(CONFIG_SA1111) := 0x00208000 endif -textofs-$(CONFIG_ARCH_MSM7X30) := 0x00208000 |