diff options
Diffstat (limited to 'arch')
106 files changed, 950 insertions, 716 deletions
diff --git a/arch/arm/boot/Makefile b/arch/arm/boot/Makefile index 176062ac7f07..5df26a9976a2 100644 --- a/arch/arm/boot/Makefile +++ b/arch/arm/boot/Makefile @@ -65,6 +65,8 @@ $(obj)/%.dtb: $(src)/dts/%.dts $(obj)/dtbs: $(addprefix $(obj)/, $(dtb-y)) +clean-files := *.dtb + quiet_cmd_uimage = UIMAGE $@ cmd_uimage = $(CONFIG_SHELL) $(MKIMAGE) -A arm -O linux -T kernel \ -C none -a $(LOADADDR) -e $(STARTADDR) \ diff --git a/arch/arm/include/asm/hardware/cache-l2x0.h b/arch/arm/include/asm/hardware/cache-l2x0.h index 1db1143a9483..7df239bcdf27 100644 --- a/arch/arm/include/asm/hardware/cache-l2x0.h +++ b/arch/arm/include/asm/hardware/cache-l2x0.h @@ -20,6 +20,8 @@ #ifndef __ASM_ARM_HARDWARE_L2X0_H #define __ASM_ARM_HARDWARE_L2X0_H +#include <linux/errno.h> + #define L2X0_CACHE_ID 0x000 #define L2X0_CACHE_TYPE 0x004 #define L2X0_CTRL 0x100 diff --git a/arch/arm/include/asm/mach/arch.h b/arch/arm/include/asm/mach/arch.h index 7d19425dd496..2b0efc3104ac 100644 --- a/arch/arm/include/asm/mach/arch.h +++ b/arch/arm/include/asm/mach/arch.h @@ -13,6 +13,7 @@ struct tag; struct meminfo; struct sys_timer; +struct pt_regs; struct machine_desc { unsigned int nr; /* architecture number */ diff --git a/arch/arm/include/asm/unistd.h b/arch/arm/include/asm/unistd.h index c60a2944f95b..4a1123783806 100644 --- a/arch/arm/include/asm/unistd.h +++ b/arch/arm/include/asm/unistd.h @@ -402,6 +402,8 @@ #define __NR_syncfs (__NR_SYSCALL_BASE+373) #define __NR_sendmmsg (__NR_SYSCALL_BASE+374) #define __NR_setns (__NR_SYSCALL_BASE+375) +#define __NR_process_vm_readv (__NR_SYSCALL_BASE+376) +#define __NR_process_vm_writev (__NR_SYSCALL_BASE+377) /* * The following SWIs are ARM private. diff --git a/arch/arm/kernel/calls.S b/arch/arm/kernel/calls.S index 9943e9e74a1b..463ff4a0ec8a 100644 --- a/arch/arm/kernel/calls.S +++ b/arch/arm/kernel/calls.S @@ -385,6 +385,8 @@ CALL(sys_syncfs) CALL(sys_sendmmsg) /* 375 */ CALL(sys_setns) + CALL(sys_process_vm_readv) + CALL(sys_process_vm_writev) #ifndef syscalls_counted .equ syscalls_padding, ((NR_syscalls + 3) & ~3) - NR_syscalls #define syscalls_counted diff --git a/arch/arm/kernel/head.S b/arch/arm/kernel/head.S index 566c54c2a1fe..08c82fd844a8 100644 --- a/arch/arm/kernel/head.S +++ b/arch/arm/kernel/head.S @@ -360,7 +360,7 @@ __secondary_data: * r13 = *virtual* address to jump to upon completion */ __enable_mmu: -#ifdef CONFIG_ALIGNMENT_TRAP +#if defined(CONFIG_ALIGNMENT_TRAP) && __LINUX_ARM_ARCH__ < 6 orr r0, r0, #CR_A #else bic r0, r0, #CR_A diff --git a/arch/arm/kernel/machine_kexec.c b/arch/arm/kernel/machine_kexec.c index c1b4463dcc83..e59bbd496c39 100644 --- a/arch/arm/kernel/machine_kexec.c +++ b/arch/arm/kernel/machine_kexec.c @@ -32,24 +32,6 @@ static atomic_t waiting_for_crash_ipi; int machine_kexec_prepare(struct kimage *image) { - unsigned long page_list; - void *reboot_code_buffer; - page_list = image->head & PAGE_MASK; - - reboot_code_buffer = page_address(image->control_code_page); - - /* Prepare parameters for reboot_code_buffer*/ - kexec_start_address = image->start; - kexec_indirection_page = page_list; - kexec_mach_type = machine_arch_type; - kexec_boot_atags = image->start - KEXEC_ARM_ZIMAGE_OFFSET + KEXEC_ARM_ATAGS_OFFSET; - - /* copy our kernel relocation code to the control code page */ - memcpy(reboot_code_buffer, - relocate_new_kernel, relocate_new_kernel_size); - - flush_icache_range((unsigned long) reboot_code_buffer, - (unsigned long) reboot_code_buffer + KEXEC_CONTROL_PAGE_SIZE); return 0; } @@ -100,14 +82,31 @@ void (*kexec_reinit)(void); void machine_kexec(struct kimage *image) { + unsigned long page_list; unsigned long reboot_code_buffer_phys; void *reboot_code_buffer; + + page_list = image->head & PAGE_MASK; + /* we need both effective and real address here */ reboot_code_buffer_phys = page_to_pfn(image->control_code_page) << PAGE_SHIFT; reboot_code_buffer = page_address(image->control_code_page); + /* Prepare parameters for reboot_code_buffer*/ + kexec_start_address = image->start; + kexec_indirection_page = page_list; + kexec_mach_type = machine_arch_type; + kexec_boot_atags = image->start - KEXEC_ARM_ZIMAGE_OFFSET + KEXEC_ARM_ATAGS_OFFSET; + + /* copy our kernel relocation code to the control code page */ + memcpy(reboot_code_buffer, + relocate_new_kernel, relocate_new_kernel_size); + + + flush_icache_range((unsigned long) reboot_code_buffer, + (unsigned long) reboot_code_buffer + KEXEC_CONTROL_PAGE_SIZE); printk(KERN_INFO "Bye!\n"); if (kexec_reinit) diff --git a/arch/arm/kernel/setup.c b/arch/arm/kernel/setup.c index 7e7977ab994f..3448a3f9cc8c 100644 --- a/arch/arm/kernel/setup.c +++ b/arch/arm/kernel/setup.c @@ -461,8 +461,10 @@ static void __init setup_processor(void) cpu_name, read_cpuid_id(), read_cpuid_id() & 15, proc_arch[cpu_architecture()], cr_alignment); - sprintf(init_utsname()->machine, "%s%c", list->arch_name, ENDIANNESS); - sprintf(elf_platform, "%s%c", list->elf_name, ENDIANNESS); + snprintf(init_utsname()->machine, __NEW_UTS_LEN + 1, "%s%c", + list->arch_name, ENDIANNESS); + snprintf(elf_platform, ELF_PLATFORM_SIZE, "%s%c", + list->elf_name, ENDIANNESS); elf_hwcap = list->elf_hwcap; #ifndef CONFIG_ARM_THUMB elf_hwcap &= ~HWCAP_THUMB; diff --git a/arch/arm/mach-bcmring/core.c b/arch/arm/mach-bcmring/core.c index 43eadbcc29ed..430da120a297 100644 --- a/arch/arm/mach-bcmring/core.c +++ b/arch/arm/mach-bcmring/core.c @@ -235,7 +235,7 @@ void __init bcmring_init_timer(void) */ bcmring_clocksource_init(); - sp804_clockevents_register(TIMER0_VA_BASE, IRQ_TIMER0, "timer0"); + sp804_clockevents_init(TIMER0_VA_BASE, IRQ_TIMER0, "timer0"); } struct sys_timer bcmring_timer = { diff --git a/arch/arm/mach-bcmring/dma.c b/arch/arm/mach-bcmring/dma.c index b52b8de91bde..f4d4d6d174d0 100644 --- a/arch/arm/mach-bcmring/dma.c +++ b/arch/arm/mach-bcmring/dma.c @@ -36,6 +36,7 @@ #include <linux/mm.h> #include <linux/pfn.h> #include <linux/atomic.h> +#include <linux/sched.h> #include <mach/dma.h> /* I don't quite understand why dc4 fails when this is set to 1 and DMA is enabled */ diff --git a/arch/arm/mach-shmobile/clock-sh7372.c b/arch/arm/mach-shmobile/clock-sh7372.c index 995a9c3aec8f..e349c22a0d71 100644 --- a/arch/arm/mach-shmobile/clock-sh7372.c +++ b/arch/arm/mach-shmobile/clock-sh7372.c @@ -411,11 +411,11 @@ static struct clk *fsibckcr_parent[] = { }; static struct clk div6_reparent_clks[DIV6_REPARENT_NR] = { - [DIV6_HDMI] = SH_CLK_DIV6_EXT(&pllc1_div2_clk, HDMICKCR, 0, + [DIV6_HDMI] = SH_CLK_DIV6_EXT(HDMICKCR, 0, hdmi_parent, ARRAY_SIZE(hdmi_parent), 6, 2), - [DIV6_FSIA] = SH_CLK_DIV6_EXT(&pllc1_div2_clk, FSIACKCR, 0, + [DIV6_FSIA] = SH_CLK_DIV6_EXT(FSIACKCR, 0, fsiackcr_parent, ARRAY_SIZE(fsiackcr_parent), 6, 2), - [DIV6_FSIB] = SH_CLK_DIV6_EXT(&pllc1_div2_clk, FSIBCKCR, 0, + [DIV6_FSIB] = SH_CLK_DIV6_EXT(FSIBCKCR, 0, fsibckcr_parent, ARRAY_SIZE(fsibckcr_parent), 6, 2), }; diff --git a/arch/arm/mach-shmobile/clock-sh73a0.c b/arch/arm/mach-shmobile/clock-sh73a0.c index 61a846bb30f2..8ea8c810144b 100644 --- a/arch/arm/mach-shmobile/clock-sh73a0.c +++ b/arch/arm/mach-shmobile/clock-sh73a0.c @@ -92,6 +92,24 @@ static struct clk_ops div2_clk_ops = { .recalc = div2_recalc, }; +static unsigned long div7_recalc(struct clk *clk) +{ + return clk->parent->rate / 7; +} + +static struct clk_ops div7_clk_ops = { + .recalc = div7_recalc, +}; + +static unsigned long div13_recalc(struct clk *clk) +{ + return clk->parent->rate / 13; +} + +static struct clk_ops div13_clk_ops = { + .recalc = div13_recalc, +}; + /* Divide extal1 by two */ static struct clk extal1_div2_clk = { .ops = &div2_clk_ops, @@ -113,6 +131,11 @@ static struct clk main_clk = { .ops = &main_clk_ops, }; +static struct clk main_div2_clk = { + .ops = &div2_clk_ops, + .parent = &main_clk, +}; + /* PLL0, PLL1, PLL2, PLL3 */ static unsigned long pll_recalc(struct clk *clk) { @@ -168,12 +191,29 @@ static struct clk pll3_clk = { .enable_bit = 3, }; -/* Divide PLL1 by two */ +/* Divide PLL */ static struct clk pll1_div2_clk = { .ops = &div2_clk_ops, .parent = &pll1_clk, }; +static struct clk pll1_div7_clk = { + .ops = &div7_clk_ops, + .parent = &pll1_clk, +}; + +static struct clk pll1_div13_clk = { + .ops = &div13_clk_ops, + .parent = &pll1_clk, +}; + +/* External input clock */ +struct clk sh73a0_extcki_clk = { +}; + +struct clk sh73a0_extalr_clk = { +}; + static struct clk *main_clks[] = { &r_clk, &sh73a0_extal1_clk, @@ -181,11 +221,16 @@ static struct clk *main_clks[] = { &extal1_div2_clk, &extal2_div2_clk, &main_clk, + &main_div2_clk, &pll0_clk, &pll1_clk, &pll2_clk, &pll3_clk, &pll1_div2_clk, + &pll1_div7_clk, + &pll1_div13_clk, + &sh73a0_extcki_clk, + &sh73a0_extalr_clk, }; static void div4_kick(struct clk *clk) @@ -239,27 +284,84 @@ enum { DIV6_VCK1, DIV6_VCK2, DIV6_VCK3, DIV6_ZB1, DIV6_DSIT, DIV6_DSI0P, DIV6_DSI1P, DIV6_NR }; +static struct clk *vck_parent[8] = { + [0] = &pll1_div2_clk, + [1] = &pll2_clk, + [2] = &sh73a0_extcki_clk, + [3] = &sh73a0_extal2_clk, + [4] = &main_div2_clk, + [5] = &sh73a0_extalr_clk, + [6] = &main_clk, +}; + +static struct clk *pll_parent[4] = { + [0] = &pll1_div2_clk, + [1] = &pll2_clk, + [2] = &pll1_div13_clk, +}; + +static struct clk *hsi_parent[4] = { + [0] = &pll1_div2_clk, + [1] = &pll2_clk, + [2] = &pll1_div7_clk, +}; + +static struct clk *pll_extal2_parent[] = { + [0] = &pll1_div2_clk, + [1] = &pll2_clk, + [2] = &sh73a0_extal2_clk, + [3] = &sh73a0_extal2_clk, +}; + +static struct clk *dsi_parent[8] = { + [0] = &pll1_div2_clk, + [1] = &pll2_clk, + [2] = &main_clk, + [3] = &sh73a0_extal2_clk, + [4] = &sh73a0_extcki_clk, +}; + static struct clk div6_clks[DIV6_NR] = { - [DIV6_VCK1] = SH_CLK_DIV6(&pll1_div2_clk, VCLKCR1, 0), - [DIV6_VCK2] = SH_CLK_DIV6(&pll1_div2_clk, VCLKCR2, 0), - [DIV6_VCK3] = SH_CLK_DIV6(&pll1_div2_clk, VCLKCR3, 0), - [DIV6_ZB1] = SH_CLK_DIV6(&pll1_div2_clk, ZBCKCR, 0), - [DIV6_FLCTL] = SH_CLK_DIV6(&pll1_div2_clk, FLCKCR, 0), - [DIV6_SDHI0] = SH_CLK_DIV6(&pll1_div2_clk, SD0CKCR, 0), - [DIV6_SDHI1] = SH_CLK_DIV6(&pll1_div2_clk, SD1CKCR, 0), - [DIV6_SDHI2] = SH_CLK_DIV6(&pll1_div2_clk, SD2CKCR, 0), - [DIV6_FSIA] = SH_CLK_DIV6(&pll1_div2_clk, FSIACKCR, 0), - [DIV6_FSIB] = SH_CLK_DIV6(&pll1_div2_clk, FSIBCKCR, 0), - [DIV6_SUB] = SH_CLK_DIV6(&sh73a0_extal2_clk, SUBCKCR, 0), - [DIV6_SPUA] = SH_CLK_DIV6(&pll1_div2_clk, SPUACKCR, 0), - [DIV6_SPUV] = SH_CLK_DIV6(&pll1_div2_clk, SPUVCKCR, 0), - [DIV6_MSU] = SH_CLK_DIV6(&pll1_div2_clk, MSUCKCR, 0), - [DIV6_HSI] = SH_CLK_DIV6(&pll1_div2_clk, HSICKCR, 0), - [DIV6_MFG1] = SH_CLK_DIV6(&pll1_div2_clk, MFCK1CR, 0), - [DIV6_MFG2] = SH_CLK_DIV6(&pll1_div2_clk, MFCK2CR, 0), - [DIV6_DSIT] = SH_CLK_DIV6(&pll1_div2_clk, DSITCKCR, 0), - [DIV6_DSI0P] = SH_CLK_DIV6(&pll1_div2_clk, DSI0PCKCR, 0), - [DIV6_DSI1P] = SH_CLK_DIV6(&pll1_div2_clk, DSI1PCKCR, 0), + [DIV6_VCK1] = SH_CLK_DIV6_EXT(VCLKCR1, 0, + vck_parent, ARRAY_SIZE(vck_parent), 12, 3), + [DIV6_VCK2] = SH_CLK_DIV6_EXT(VCLKCR2, 0, + vck_parent, ARRAY_SIZE(vck_parent), 12, 3), + [DIV6_VCK3] = SH_CLK_DIV6_EXT(VCLKCR3, 0, + vck_parent, ARRAY_SIZE(vck_parent), 12, 3), + [DIV6_ZB1] = SH_CLK_DIV6_EXT(ZBCKCR, 0, + pll_parent, ARRAY_SIZE(pll_parent), 7, 1), + [DIV6_FLCTL] = SH_CLK_DIV6_EXT(FLCKCR, 0, + pll_parent, ARRAY_SIZE(pll_parent), 7, 1), + [DIV6_SDHI0] = SH_CLK_DIV6_EXT(SD0CKCR, 0, + pll_parent, ARRAY_SIZE(pll_parent), 6, 2), + [DIV6_SDHI1] = SH_CLK_DIV6_EXT(SD1CKCR, 0, + pll_parent, ARRAY_SIZE(pll_parent), 6, 2), + [DIV6_SDHI2] = SH_CLK_DIV6_EXT(SD2CKCR, 0, + pll_parent, ARRAY_SIZE(pll_parent), 6, 2), + [DIV6_FSIA] = SH_CLK_DIV6_EXT(FSIACKCR, 0, + pll_parent, ARRAY_SIZE(pll_parent), 6, 1), + [DIV6_FSIB] = SH_CLK_DIV6_EXT(FSIBCKCR, 0, + pll_parent, ARRAY_SIZE(pll_parent), 6, 1), + [DIV6_SUB] = SH_CLK_DIV6_EXT(SUBCKCR, 0, + pll_extal2_parent, ARRAY_SIZE(pll_extal2_parent), 6, 2), + [DIV6_SPUA] = SH_CLK_DIV6_EXT(SPUACKCR, 0, + pll_extal2_parent, ARRAY_SIZE(pll_extal2_parent), 6, 2), + [DIV6_SPUV] = SH_CLK_DIV6_EXT(SPUVCKCR, 0, + pll_extal2_parent, ARRAY_SIZE(pll_extal2_parent), 6, 2), + [DIV6_MSU] = SH_CLK_DIV6_EXT(MSUCKCR, 0, + pll_parent, ARRAY_SIZE(pll_parent), 7, 1), + [DIV6_HSI] = SH_CLK_DIV6_EXT(HSICKCR, 0, + hsi_parent, ARRAY_SIZE(hsi_parent), 6, 2), + [DIV6_MFG1] = SH_CLK_DIV6_EXT(MFCK1CR, 0, + pll_parent, ARRAY_SIZE(pll_parent), 7, 1), + [DIV6_MFG2] = SH_CLK_DIV6_EXT(MFCK2CR, 0, + pll_parent, ARRAY_SIZE(pll_parent), 7, 1), + [DIV6_DSIT] = SH_CLK_DIV6_EXT(DSITCKCR, 0, + pll_parent, ARRAY_SIZE(pll_parent), 7, 1), + [DIV6_DSI0P] = SH_CLK_DIV6_EXT(DSI0PCKCR, 0, + dsi_parent, ARRAY_SIZE(dsi_parent), 12, 3), + [DIV6_DSI1P] = SH_CLK_DIV6_EXT(DSI1PCKCR, 0, + dsi_parent, ARRAY_SIZE(dsi_parent), 12, 3), }; enum { MSTP001, @@ -387,7 +489,7 @@ void __init sh73a0_clock_init(void) ret = sh_clk_div4_register(div4_clks, DIV4_NR, &div4_table); if (!ret) - ret = sh_clk_div6_register(div6_clks, DIV6_NR); + ret = sh_clk_div6_reparent_register(div6_clks, DIV6_NR); if (!ret) ret = sh_clk_mstp32_register(mstp_clks, MSTP_NR); diff --git a/arch/arm/mach-shmobile/include/mach/common.h b/arch/arm/mach-shmobile/include/mach/common.h index 834bd6cd508f..d055d054ef89 100644 --- a/arch/arm/mach-shmobile/include/mach/common.h +++ b/arch/arm/mach-shmobile/include/mach/common.h @@ -47,6 +47,8 @@ extern void sh73a0_clock_init(void); extern void sh73a0_pinmux_init(void); extern struct clk sh73a0_extal1_clk; extern struct clk sh73a0_extal2_clk; +extern struct clk sh73a0_extcki_clk; +extern struct clk sh73a0_extalr_clk; extern unsigned int sh73a0_get_core_count(void); extern void sh73a0_secondary_init(unsigned int cpu); diff --git a/arch/arm/mach-shmobile/pm-sh7372.c b/arch/arm/mach-shmobile/pm-sh7372.c index 0a5b22942fd3..34bbcbfb1706 100644 --- a/arch/arm/mach-shmobile/pm-sh7372.c +++ b/arch/arm/mach-shmobile/pm-sh7372.c @@ -20,6 +20,7 @@ #include <linux/delay.h> #include <linux/irq.h> #include <linux/bitrev.h> +#include <linux/console.h> #include <asm/system.h> #include <asm/io.h> #include <asm/tlbflush.h> @@ -106,9 +107,8 @@ static int pd_power_down(struct generic_pm_domain *genpd) return 0; } -static int pd_power_up(struct generic_pm_domain *genpd) +static int __pd_power_up(struct sh7372_pm_domain *sh7372_pd, bool do_resume) { - struct sh7372_pm_domain *sh7372_pd = to_sh7372_pd(genpd); unsigned int mask = 1 << sh7372_pd->bit_shift; unsigned int retry_count; int ret = 0; @@ -123,13 +123,13 @@ static int pd_power_up(struct generic_pm_domain *genpd) for (retry_count = 2 * PSTR_RETRIES; retry_count; retry_count--) { if (!(__raw_readl(SWUCR) & mask)) - goto out; + break; if (retry_count > PSTR_RETRIES) udelay(PSTR_DELAY_US); else cpu_relax(); } - if (__raw_readl(SWUCR) & mask) + if (!retry_count) ret = -EIO; if (!sh7372_pd->no_debug) @@ -137,12 +137,17 @@ static int pd_power_up(struct generic_pm_domain *genpd) mask, __raw_readl(PSTR)); out: - if (ret == 0 && sh7372_pd->resume) + if (ret == 0 && sh7372_pd->resume && do_resume) sh7372_pd->resume(); return ret; } +static int pd_power_up(struct generic_pm_domain *genpd) +{ + return __pd_power_up(to_sh7372_pd(genpd), true); +} + static void sh7372_a4r_suspend(void) { sh7372_intcs_suspend(); @@ -174,7 +179,7 @@ void sh7372_init_pm_domain(struct sh7372_pm_domain *sh7372_pd) genpd->active_wakeup = pd_active_wakeup; genpd->power_off = pd_power_down; genpd->power_on = pd_power_up; - genpd->power_on(&sh7372_pd->genpd); + __pd_power_up(sh7372_pd, false); } void sh7372_add_device_to_domain(struct sh7372_pm_domain *sh7372_pd, @@ -227,11 +232,23 @@ struct sh7372_pm_domain sh7372_a3sp = { .no_debug = true, }; +static void sh7372_a3sp_init(void) +{ + /* serial consoles make use of SCIF hardware located in A3SP, + * keep such power domain on if "no_console_suspend" is set. + */ + sh7372_a3sp.stay_on = !console_suspend_enabled; +} + struct sh7372_pm_domain sh7372_a3sg = { .bit_shift = 13, }; -#endif /* CONFIG_PM */ +#else /* !CONFIG_PM */ + +static inline void sh7372_a3sp_init(void) {} + +#endif /* !CONFIG_PM */ #if defined(CONFIG_SUSPEND) || defined(CONFIG_CPU_IDLE) static int sh7372_do_idle_core_standby(unsigned long unused) @@ -465,6 +482,8 @@ void __init sh7372_pm_init(void) /* do not convert A3SM, A3SP, A3SG, A4R power down into A4S */ __raw_writel(0, PDNSEL); + sh7372_a3sp_init(); + sh7372_suspend_init(); sh7372_cpuidle_init(); } diff --git a/arch/arm/mach-w90x900/dev.c b/arch/arm/mach-w90x900/dev.c index 7a1fa6adb7c3..5b0c38abacc1 100644 --- a/arch/arm/mach-w90x900/dev.c +++ b/arch/arm/mach-w90x900/dev.c @@ -422,7 +422,7 @@ struct platform_device nuc900_device_kpi = { /* LCD controller*/ -static struct nuc900fb_display __initdata nuc900_lcd_info[] = { +static struct nuc900fb_display nuc900_lcd_info[] = { /* Giantplus Technology GPM1040A0 320x240 Color TFT LCD */ [0] = { .type = LCM_DCCS_VA_SRC_RGB565, @@ -445,7 +445,7 @@ static struct nuc900fb_display __initdata nuc900_lcd_info[] = { }, }; -static struct nuc900fb_mach_info nuc900_fb_info __initdata = { +static struct nuc900fb_mach_info nuc900_fb_info = { #if defined(CONFIG_GPM1040A0_320X240) .displays = &nuc900_lcd_info[0], #else diff --git a/arch/arm/mach-w90x900/include/mach/mfp.h b/arch/arm/mach-w90x900/include/mach/mfp.h index 94c0e71617c6..23ef1f573abd 100644 --- a/arch/arm/mach-w90x900/include/mach/mfp.h +++ b/arch/arm/mach-w90x900/include/mach/mfp.h @@ -19,6 +19,7 @@ extern void mfp_set_groupf(struct device *dev); extern void mfp_set_groupc(struct device *dev); extern void mfp_set_groupi(struct device *dev); -extern void mfp_set_groupg(struct device *dev); +extern void mfp_set_groupg(struct device *dev, const char *subname); +extern void mfp_set_groupd(struct device *dev, const char *subname); #endif /* __ASM_ARCH_MFP_H */ diff --git a/arch/arm/mach-w90x900/include/mach/nuc900_spi.h b/arch/arm/mach-w90x900/include/mach/nuc900_spi.h index bd94819e314f..2c4e0c128501 100644 --- a/arch/arm/mach-w90x900/include/mach/nuc900_spi.h +++ b/arch/arm/mach-w90x900/include/mach/nuc900_spi.h @@ -14,7 +14,7 @@ #ifndef __ASM_ARCH_SPI_H #define __ASM_ARCH_SPI_H -extern void mfp_set_groupg(struct device *dev); +extern void mfp_set_groupg(struct device *dev, const char *subname); struct nuc900_spi_info { unsigned int num_cs; diff --git a/arch/arm/mach-w90x900/mfp.c b/arch/arm/mach-w90x900/mfp.c index fb7fb627b1a5..9dd74612bb87 100644 --- a/arch/arm/mach-w90x900/mfp.c +++ b/arch/arm/mach-w90x900/mfp.c @@ -26,10 +26,8 @@ #define REG_MFSEL (W90X900_VA_GCR + 0xC) #define GPSELF (0x01 << 1) - #define GPSELC (0x03 << 2) -#define ENKPI (0x02 << 2) -#define ENNAND (0x01 << 2) +#define GPSELD (0x0f << 4) #define GPSELEI0 (0x01 << 26) #define GPSELEI1 (0x01 << 27) @@ -37,11 +35,16 @@ #define GPIOG0TO1 (0x03 << 14) #define GPIOG2TO3 (0x03 << 16) #define GPIOG22TO23 (0x03 << 22) +#define GPIOG18TO20 (0x07 << 18) #define ENSPI (0x0a << 14) #define ENI2C0 (0x01 << 14) #define ENI2C1 (0x01 << 16) #define ENAC97 (0x02 << 22) +#define ENSD1 (0x02 << 18) +#define ENSD0 (0x0a << 4) +#define ENKPI (0x02 << 2) +#define ENNAND (0x01 << 2) static DEFINE_MUTEX(mfp_mutex); @@ -127,16 +130,19 @@ void mfp_set_groupi(struct device *dev) } EXPORT_SYMBOL(mfp_set_groupi); -void mfp_set_groupg(struct device *dev) +void mfp_set_groupg(struct device *dev, const char *subname) { unsigned long mfpen; const char *dev_id; - BUG_ON(!dev); + BUG_ON((!dev) && (!subname)); mutex_lock(&mfp_mutex); - dev_id = dev_name(dev); + if (subname != NULL) + dev_id = subname; + else + dev_id = dev_name(dev); mfpen = __raw_readl(REG_MFSEL); @@ -152,6 +158,9 @@ void mfp_set_groupg(struct device *dev) } else if (strcmp(dev_id, "nuc900-audio") == 0) { mfpen &= ~(GPIOG22TO23); mfpen |= ENAC97;/*enable AC97*/ + } else if (strcmp(dev_id, "nuc900-mmc-port1") == 0) { + mfpen &= ~(GPIOG18TO20); + mfpen |= (ENSD1 | 0x01);/*enable sd1*/ } else { mfpen &= ~(GPIOG0TO1 | GPIOG2TO3);/*GPIOG[3:0]*/ } @@ -162,3 +171,30 @@ void mfp_set_groupg(struct device *dev) } EXPORT_SYMBOL(mfp_set_groupg); +void mfp_set_groupd(struct device *dev, const char *subname) +{ + unsigned long mfpen; + const char *dev_id; + + BUG_ON((!dev) && (!subname)); + + mutex_lock(&mfp_mutex); + + if (subname != NULL) + dev_id = subname; + else + dev_id = dev_name(dev); + + mfpen = __raw_readl(REG_MFSEL); + + if (strcmp(dev_id, "nuc900-mmc-port0") == 0) { + mfpen &= ~GPSELD;/*enable sd0*/ + mfpen |= ENSD0; + } else + mfpen &= (~GPSELD); + + __raw_writel(mfpen, REG_MFSEL); + + mutex_unlock(&mfp_mutex); +} +EXPORT_SYMBOL(mfp_set_groupd); diff --git a/arch/cris/arch-v10/drivers/Kconfig b/arch/cris/arch-v10/drivers/Kconfig index 32d90867a984..5f2cdb3e428c 100644 --- a/arch/cris/arch-v10/drivers/Kconfig +++ b/arch/cris/arch-v10/drivers/Kconfig @@ -3,7 +3,7 @@ if ETRAX_ARCH_V10 config ETRAX_ETHERNET bool "Ethernet support" depends on ETRAX_ARCH_V10 - select NET_ETHERNET + select ETHERNET select NET_CORE select MII help diff --git a/arch/cris/arch-v32/drivers/Kconfig b/arch/cris/arch-v32/drivers/Kconfig index e47e9c3401b0..de43aadcdbc4 100644 --- a/arch/cris/arch-v32/drivers/Kconfig +++ b/arch/cris/arch-v32/drivers/Kconfig @@ -3,7 +3,7 @@ if ETRAX_ARCH_V32 config ETRAX_ETHERNET bool "Ethernet support" depends on ETRAX_ARCH_V32 - select NET_ETHERNET + select ETHERNET select NET_CORE select MII help diff --git a/arch/microblaze/include/asm/namei.h b/arch/microblaze/include/asm/namei.h deleted file mode 100644 index 61d60b8a07d5..000000000000 --- a/arch/microblaze/include/asm/namei.h +++ /dev/null @@ -1,22 +0,0 @@ -/* - * Copyright (C) 2006 Atmark Techno, Inc. - * - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file "COPYING" in the main directory of this archive - * for more details. - */ - -#ifndef _ASM_MICROBLAZE_NAMEI_H -#define _ASM_MICROBLAZE_NAMEI_H - -#ifdef __KERNEL__ - -/* This dummy routine maybe changed to something useful - * for /usr/gnemul/ emulation stuff. - * Look at asm-sparc/namei.h for details. - */ -#define __emul_prefix() NULL - -#endif /* __KERNEL__ */ - -#endif /* _ASM_MICROBLAZE_NAMEI_H */ diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig index b177caa56d95..951e18f5335b 100644 --- a/arch/powerpc/Kconfig +++ b/arch/powerpc/Kconfig @@ -345,7 +345,7 @@ config ARCH_ENABLE_MEMORY_HOTREMOVE config KEXEC bool "kexec system call (EXPERIMENTAL)" - depends on (PPC_BOOK3S || FSL_BOOKE || (44x && !SMP && !47x)) && EXPERIMENTAL + depends on (PPC_BOOK3S || FSL_BOOKE || (44x && !SMP && !PPC_47x)) && EXPERIMENTAL help kexec is a system call that implements the ability to shutdown your current kernel, and to start another kernel. It is like a reboot diff --git a/arch/powerpc/Makefile b/arch/powerpc/Makefile index 57af16edc192..70ba0c0a1223 100644 --- a/arch/powerpc/Makefile +++ b/arch/powerpc/Makefile @@ -255,12 +255,6 @@ checkbin: echo 'disable kernel modules' ; \ false ; \ fi - @if ! /bin/echo dssall | $(AS) -many -o $(TOUT) >/dev/null 2>&1 ; then \ - echo -n '*** ${VERSION}.${PATCHLEVEL} kernels no longer build ' ; \ - echo 'correctly with old versions of binutils.' ; \ - echo '*** Please upgrade your binutils to 2.12.1 or newer' ; \ - false ; \ - fi CLEAN_FILES += $(TOUT) diff --git a/arch/powerpc/boot/dts/p1023rds.dts b/arch/powerpc/boot/dts/p1023rds.dts index d9b776740a67..d3b478242ea9 100644 --- a/arch/powerpc/boot/dts/p1023rds.dts +++ b/arch/powerpc/boot/dts/p1023rds.dts @@ -449,6 +449,7 @@ interrupt-parent = <&mpic>; interrupts = <16 2>; interrupt-map-mask = <0xf800 0 0 7>; + /* IRQ[0:3] are pulled up on board, set to active-low */ interrupt-map = < /* IDSEL 0x0 */ 0000 0 0 1 &mpic 0 1 @@ -488,11 +489,15 @@ interrupt-parent = <&mpic>; interrupts = <16 2>; interrupt-map-mask = <0xf800 0 0 7>; + /* + * IRQ[4:6] only for PCIe, set to active-high, + * IRQ[7] is pulled up on board, set to active-low + */ interrupt-map = < /* IDSEL 0x0 */ - 0000 0 0 1 &mpic 4 1 - 0000 0 0 2 &mpic 5 1 - 0000 0 0 3 &mpic 6 1 + 0000 0 0 1 &mpic 4 2 + 0000 0 0 2 &mpic 5 2 + 0000 0 0 3 &mpic 6 2 0000 0 0 4 &mpic 7 1 >; ranges = <0x2000000 0x0 0xa0000000 @@ -527,12 +532,16 @@ interrupt-parent = <&mpic>; interrupts = <16 2>; interrupt-map-mask = <0xf800 0 0 7>; + /* + * IRQ[8:10] are pulled up on board, set to active-low + * IRQ[11] only for PCIe, set to active-high, + */ interrupt-map = < /* IDSEL 0x0 */ 0000 0 0 1 &mpic 8 1 0000 0 0 2 &mpic 9 1 0000 0 0 3 &mpic 10 1 - 0000 0 0 4 &mpic 11 1 + 0000 0 0 4 &mpic 11 2 >; ranges = <0x2000000 0x0 0x80000000 0x2000000 0x0 0x80000000 diff --git a/arch/powerpc/configs/ppc44x_defconfig b/arch/powerpc/configs/ppc44x_defconfig index 6cdf1c0d2c8a..3b98d7354341 100644 --- a/arch/powerpc/configs/ppc44x_defconfig +++ b/arch/powerpc/configs/ppc44x_defconfig @@ -52,6 +52,8 @@ CONFIG_MTD_CFI=y CONFIG_MTD_JEDECPROBE=y CONFIG_MTD_CFI_AMDSTD=y CONFIG_MTD_PHYSMAP_OF=y +CONFIG_MTD_NAND=m +CONFIG_MTD_NAND_NDFC=m CONFIG_MTD_UBI=m CONFIG_MTD_UBI_GLUEBI=m CONFIG_PROC_DEVICETREE=y diff --git a/arch/powerpc/include/asm/atomic.h b/arch/powerpc/include/asm/atomic.h index e2a4c26ad377..02e41b53488d 100644 --- a/arch/powerpc/include/asm/atomic.h +++ b/arch/powerpc/include/asm/atomic.h @@ -49,13 +49,13 @@ static __inline__ int atomic_add_return(int a, atomic_t *v) int t; __asm__ __volatile__( - PPC_RELEASE_BARRIER + PPC_ATOMIC_ENTRY_BARRIER "1: lwarx %0,0,%2 # atomic_add_return\n\ add %0,%1,%0\n" PPC405_ERR77(0,%2) " stwcx. %0,0,%2 \n\ bne- 1b" - PPC_ACQUIRE_BARRIER + PPC_ATOMIC_EXIT_BARRIER : "=&r" (t) : "r" (a), "r" (&v->counter) : "cc", "memory"); @@ -85,13 +85,13 @@ static __inline__ int atomic_sub_return(int a, atomic_t *v) int t; __asm__ __volatile__( - PPC_RELEASE_BARRIER + PPC_ATOMIC_ENTRY_BARRIER "1: lwarx %0,0,%2 # atomic_sub_return\n\ subf %0,%1,%0\n" PPC405_ERR77(0,%2) " stwcx. %0,0,%2 \n\ bne- 1b" - PPC_ACQUIRE_BARRIER + PPC_ATOMIC_EXIT_BARRIER : "=&r" (t) : "r" (a), "r" (&v->counter) : "cc", "memory"); @@ -119,13 +119,13 @@ static __inline__ int atomic_inc_return(atomic_t *v) int t; __asm__ __volatile__( - PPC_RELEASE_BARRIER + PPC_ATOMIC_ENTRY_BARRIER "1: lwarx %0,0,%1 # atomic_inc_return\n\ addic %0,%0,1\n" PPC405_ERR77(0,%1) " stwcx. %0,0,%1 \n\ bne- 1b" - PPC_ACQUIRE_BARRIER + PPC_ATOMIC_EXIT_BARRIER : "=&r" (t) : "r" (&v->counter) : "cc", "xer", "memory"); @@ -163,13 +163,13 @@ static __inline__ int atomic_dec_return(atomic_t *v) int t; __asm__ __volatile__( - PPC_RELEASE_BARRIER + PPC_ATOMIC_ENTRY_BARRIER "1: lwarx %0,0,%1 # atomic_dec_return\n\ addic %0,%0,-1\n" PPC405_ERR77(0,%1) " stwcx. %0,0,%1\n\ bne- 1b" - PPC_ACQUIRE_BARRIER + PPC_ATOMIC_EXIT_BARRIER : "=&r" (t) : "r" (&v->counter) : "cc", "xer", "memory"); @@ -194,7 +194,7 @@ static __inline__ int __atomic_add_unless(atomic_t *v, int a, int u) int t; __asm__ __volatile__ ( - PPC_RELEASE_BARRIER + PPC_ATOMIC_ENTRY_BARRIER "1: lwarx %0,0,%1 # __atomic_add_unless\n\ cmpw 0,%0,%3 \n\ beq- 2f \n\ @@ -202,7 +202,7 @@ static __inline__ int __atomic_add_unless(atomic_t *v, int a, int u) PPC405_ERR77(0,%2) " stwcx. %0,0,%1 \n\ bne- 1b \n" - PPC_ACQUIRE_BARRIER + PPC_ATOMIC_EXIT_BARRIER " subf %0,%2,%0 \n\ 2:" : "=&r" (t) @@ -226,7 +226,7 @@ static __inline__ int atomic_dec_if_positive(atomic_t *v) int t; __asm__ __volatile__( - PPC_RELEASE_BARRIER + PPC_ATOMIC_ENTRY_BARRIER "1: lwarx %0,0,%1 # atomic_dec_if_positive\n\ cmpwi %0,1\n\ addi %0,%0,-1\n\ @@ -234,7 +234,7 @@ static __inline__ int atomic_dec_if_positive(atomic_t *v) PPC405_ERR77(0,%1) " stwcx. %0,0,%1\n\ bne- 1b" - PPC_ACQUIRE_BARRIER + PPC_ATOMIC_EXIT_BARRIER "\n\ 2:" : "=&b" (t) : "r" (&v->counter) @@ -285,12 +285,12 @@ static __inline__ long atomic64_add_return(long a, atomic64_t *v) long t; __asm__ __volatile__( - PPC_RELEASE_BARRIER + PPC_ATOMIC_ENTRY_BARRIER "1: ldarx %0,0,%2 # atomic64_add_return\n\ add %0,%1,%0\n\ stdcx. %0,0,%2 \n\ bne- 1b" - PPC_ACQUIRE_BARRIER + PPC_ATOMIC_EXIT_BARRIER : "=&r" (t) : "r" (a), "r" (&v->counter) : "cc", "memory"); @@ -319,12 +319,12 @@ static __inline__ long atomic64_sub_return(long a, atomic64_t *v) long t; __asm__ __volatile__( - PPC_RELEASE_BARRIER + PPC_ATOMIC_ENTRY_BARRIER "1: ldarx %0,0,%2 # atomic64_sub_return\n\ subf %0,%1,%0\n\ stdcx. %0,0,%2 \n\ bne- 1b" - PPC_ACQUIRE_BARRIER + PPC_ATOMIC_EXIT_BARRIER : "=&r" (t) : "r" (a), "r" (&v->counter) : "cc", "memory"); @@ -351,12 +351,12 @@ static __inline__ long atomic64_inc_return(atomic64_t *v) long t; __asm__ __volatile__( - PPC_RELEASE_BARRIER + PPC_ATOMIC_ENTRY_BARRIER "1: ldarx %0,0,%1 # atomic64_inc_return\n\ addic %0,%0,1\n\ stdcx. %0,0,%1 \n\ bne- 1b" - PPC_ACQUIRE_BARRIER + PPC_ATOMIC_EXIT_BARRIER : "=&r" (t) : "r" (&v->counter) : "cc", "xer", "memory"); @@ -393,12 +393,12 @@ static __inline__ long atomic64_dec_return(atomic64_t *v) long t; __asm__ __volatile__( - PPC_RELEASE_BARRIER + PPC_ATOMIC_ENTRY_BARRIER "1: ldarx %0,0,%1 # atomic64_dec_return\n\ addic %0,%0,-1\n\ stdcx. %0,0,%1\n\ bne- 1b" - PPC_ACQUIRE_BARRIER + PPC_ATOMIC_EXIT_BARRIER : "=&r" (t) : "r" (&v->counter) : "cc", "xer", "memory"); @@ -418,13 +418,13 @@ static __inline__ long atomic64_dec_if_positive(atomic64_t *v) long t; __asm__ __volatile__( - PPC_RELEASE_BARRIER + PPC_ATOMIC_ENTRY_BARRIER "1: ldarx %0,0,%1 # atomic64_dec_if_positive\n\ addic. %0,%0,-1\n\ blt- 2f\n\ stdcx. %0,0,%1\n\ bne- 1b" - PPC_ACQUIRE_BARRIER + PPC_ATOMIC_EXIT_BARRIER "\n\ 2:" : "=&r" (t) : "r" (&v->counter) @@ -450,14 +450,14 @@ static __inline__ int atomic64_add_unless(atomic64_t *v, long a, long u) long t; __asm__ __volatile__ ( - PPC_RELEASE_BARRIER + PPC_ATOMIC_ENTRY_BARRIER "1: ldarx %0,0,%1 # __atomic_add_unless\n\ cmpd 0,%0,%3 \n\ beq- 2f \n\ add %0,%2,%0 \n" " stdcx. %0,0,%1 \n\ bne- 1b \n" - PPC_ACQUIRE_BARRIER + PPC_ATOMIC_EXIT_BARRIER " subf %0,%2,%0 \n\ 2:" : "=&r" (t) diff --git a/arch/powerpc/include/asm/bitops.h b/arch/powerpc/include/asm/bitops.h index e137afcc10fa..efdc92618b38 100644 --- a/arch/powerpc/include/asm/bitops.h +++ b/arch/powerpc/include/asm/bitops.h @@ -124,14 +124,14 @@ static __inline__ unsigned long fn( \ return (old & mask); \ } -DEFINE_TESTOP(test_and_set_bits, or, PPC_RELEASE_BARRIER, - PPC_ACQUIRE_BARRIER, 0) +DEFINE_TESTOP(test_and_set_bits, or, PPC_ATOMIC_ENTRY_BARRIER, + PPC_ATOMIC_EXIT_BARRIER, 0) DEFINE_TESTOP(test_and_set_bits_lock, or, "", PPC_ACQUIRE_BARRIER, 1) -DEFINE_TESTOP(test_and_clear_bits, andc, PPC_RELEASE_BARRIER, - PPC_ACQUIRE_BARRIER, 0) -DEFINE_TESTOP(test_and_change_bits, xor, PPC_RELEASE_BARRIER, - PPC_ACQUIRE_BARRIER, 0) +DEFINE_TESTOP(test_and_clear_bits, andc, PPC_ATOMIC_ENTRY_BARRIER, + PPC_ATOMIC_EXIT_BARRIER, 0) +DEFINE_TESTOP(test_and_change_bits, xor, PPC_ATOMIC_ENTRY_BARRIER, + PPC_ATOMIC_EXIT_BARRIER, 0) static __inline__ int test_and_set_bit(unsigned long nr, volatile unsigned long *addr) diff --git a/arch/powerpc/include/asm/futex.h b/arch/powerpc/include/asm/futex.h index c94e4a3fe2ef..2a9cf845473b 100644 --- a/arch/powerpc/include/asm/futex.h +++ b/arch/powerpc/include/asm/futex.h @@ -11,12 +11,13 @@ #define __futex_atomic_op(insn, ret, oldval, uaddr, oparg) \ __asm__ __volatile ( \ - PPC_RELEASE_BARRIER \ + PPC_ATOMIC_ENTRY_BARRIER \ "1: lwarx %0,0,%2\n" \ insn \ PPC405_ERR77(0, %2) \ "2: stwcx. %1,0,%2\n" \ "bne- 1b\n" \ + PPC_ATOMIC_EXIT_BARRIER \ "li %1,0\n" \ "3: .section .fixup,\"ax\"\n" \ "4: li %1,%3\n" \ @@ -92,14 +93,14 @@ futex_atomic_cmpxchg_inatomic(u32 *uval, u32 __user *uaddr, return -EFAULT; __asm__ __volatile__ ( - PPC_RELEASE_BARRIER + PPC_ATOMIC_ENTRY_BARRIER "1: lwarx %1,0,%3 # futex_atomic_cmpxchg_inatomic\n\ cmpw 0,%1,%4\n\ bne- 3f\n" PPC405_ERR77(0,%3) "2: stwcx. %5,0,%3\n\ bne- 1b\n" - PPC_ACQUIRE_BARRIER + PPC_ATOMIC_EXIT_BARRIER "3: .section .fixup,\"ax\"\n\ 4: li %0,%6\n\ b 3b\n\ diff --git a/arch/powerpc/include/asm/kvm.h b/arch/powerpc/include/asm/kvm.h index 08fe69edcd10..0ad432bc81d6 100644 --- a/arch/powerpc/include/asm/kvm.h +++ b/arch/powerpc/include/asm/kvm.h @@ -149,12 +149,6 @@ struct kvm_regs { #define KVM_SREGS_E_UPDATE_DBSR (1 << 3) /* - * Book3S special bits to indicate contents in the struct by maintaining - * backwards compatibility with older structs. If adding a new field, - * please make sure to add a flag for that new field */ -#define KVM_SREGS_S_HIOR (1 << 0) - -/* * In KVM_SET_SREGS, reserved/pad fields must be left untouched from a * previous KVM_GET_REGS. * @@ -179,8 +173,6 @@ struct kvm_sregs { __u64 ibat[8]; __u64 dbat[8]; } ppc32; - __u64 flags; /* KVM_SREGS_S_ */ - __u64 hior; } s; struct { union { diff --git a/arch/powerpc/include/asm/kvm_book3s.h b/arch/powerpc/include/asm/kvm_book3s.h index a384ffdf33de..d4df013ad779 100644 --- a/arch/powerpc/include/asm/kvm_book3s.h +++ b/arch/powerpc/include/asm/kvm_book3s.h @@ -90,8 +90,6 @@ struct kvmppc_vcpu_book3s { #endif int context_id[SID_CONTEXTS]; - bool hior_sregs; /* HIOR is set by SREGS, not PVR */ - struct hlist_head hpte_hash_pte[HPTEG_HASH_NUM_PTE]; struct hlist_head hpte_hash_pte_long[HPTEG_HASH_NUM_PTE_LONG]; struct hlist_head hpte_hash_vpte[HPTEG_HASH_NUM_VPTE]; diff --git a/arch/powerpc/include/asm/reg_booke.h b/arch/powerpc/include/asm/reg_booke.h index 28cdbd9f399c..03c48e819c8e 100644 --- a/arch/powerpc/include/asm/reg_booke.h +++ b/arch/powerpc/include/asm/reg_booke.h @@ -31,7 +31,7 @@ #define MSR_ MSR_ME | MSR_CE #define MSR_KERNEL MSR_ | MSR_64BIT -#define MSR_USER32 MSR_ | MSR_PR | MSR_EE | MSR_DE +#define MSR_USER32 MSR_ | MSR_PR | MSR_EE #define MSR_USER64 MSR_USER32 | MSR_64BIT #elif defined (CONFIG_40x) #define MSR_KERNEL (MSR_ME|MSR_RI|MSR_IR|MSR_DR|MSR_CE) diff --git a/arch/powerpc/include/asm/sections.h b/arch/powerpc/include/asm/sections.h index 6fbce725c710..a0f358d4a00c 100644 --- a/arch/powerpc/include/asm/sections.h +++ b/arch/powerpc/include/asm/sections.h @@ -8,7 +8,7 @@ #ifdef __powerpc64__ -extern char _end[]; +extern char __end_interrupts[]; static inline int in_kernel_text(unsigned long addr) { diff --git a/arch/powerpc/include/asm/synch.h b/arch/powerpc/include/asm/synch.h index d7cab44643c5..e682a7143edb 100644 --- a/arch/powerpc/include/asm/synch.h +++ b/arch/powerpc/include/asm/synch.h @@ -13,6 +13,7 @@ extern unsigned int __start___lwsync_fixup, __stop___lwsync_fixup; extern void do_lwsync_fixups(unsigned long value, void *fixup_start, void *fixup_end); +extern void do_final_fixups(void); static inline void eieio(void) { @@ -41,11 +42,15 @@ static inline void isync(void) START_LWSYNC_SECTION(97); \ isync; \ MAKE_LWSYNC_SECTION_ENTRY(97, __lwsync_fixup); -#define PPC_ACQUIRE_BARRIER "\n" stringify_in_c(__PPC_ACQUIRE_BARRIER) -#define PPC_RELEASE_BARRIER stringify_in_c(LWSYNC) "\n" +#define PPC_ACQUIRE_BARRIER "\n" stringify_in_c(__PPC_ACQUIRE_BARRIER) +#define PPC_RELEASE_BARRIER stringify_in_c(LWSYNC) "\n" +#define PPC_ATOMIC_ENTRY_BARRIER "\n" stringify_in_c(LWSYNC) "\n" +#define PPC_ATOMIC_EXIT_BARRIER "\n" stringify_in_c(sync) "\n" #else #define PPC_ACQUIRE_BARRIER #define PPC_RELEASE_BARRIER +#define PPC_ATOMIC_ENTRY_BARRIER +#define PPC_ATOMIC_EXIT_BARRIER #endif #endif /* __KERNEL__ */ diff --git a/arch/powerpc/kernel/entry_32.S b/arch/powerpc/kernel/entry_32.S index 56212bc0ab08..4f80cf1ce77b 100644 --- a/arch/powerpc/kernel/entry_32.S +++ b/arch/powerpc/kernel/entry_32.S @@ -215,7 +215,22 @@ reenable_mmu: /* re-enable mmu so we can */ stw r9,8(r1) stw r11,12(r1) stw r3,ORIG_GPR3(r1) + /* + * The trace_hardirqs_off will use CALLER_ADDR0 and CALLER_ADDR1. + * If from user mode there is only one stack frame on the stack, and + * accessing CALLER_ADDR1 will cause oops. So we need create a dummy + * stack frame to make trace_hardirqs_off happy. + */ + andi. r12,r12,MSR_PR + beq 11f + stwu r1,-16(r1) + bl trace_hardirqs_off + addi r1,r1,16 + b 12f + +11: bl trace_hardirqs_off +12: lwz r0,GPR0(r1) lwz r3,ORIG_GPR3(r1) lwz r4,GPR4(r1) diff --git a/arch/powerpc/kernel/jump_label.c b/arch/powerpc/kernel/jump_label.c index 368d158d665d..a1ed8a8c7cb4 100644 --- a/arch/powerpc/kernel/jump_label.c +++ b/arch/powerpc/kernel/jump_label.c @@ -11,6 +11,7 @@ #include <linux/jump_label.h> #include <asm/code-patching.h> +#ifdef HAVE_JUMP_LABEL void arch_jump_label_transform(struct jump_entry *entry, enum jump_label_type type) { @@ -21,3 +22,4 @@ void arch_jump_label_transform(struct jump_entry *entry, else patch_instruction(addr, PPC_INST_NOP); } +#endif diff --git a/arch/powerpc/kernel/kvm.c b/arch/powerpc/kernel/kvm.c index 35f27646c4ff..2985338d0e10 100644 --- a/arch/powerpc/kernel/kvm.c +++ b/arch/powerpc/kernel/kvm.c @@ -132,7 +132,6 @@ static void kvm_patch_ins_b(u32 *inst, int addr) /* On relocatable kernels interrupts handlers and our code can be in different regions, so we don't patch them */ - extern u32 __end_interrupts; if ((ulong)inst < (ulong)&__end_interrupts) return; #endif diff --git a/arch/powerpc/kernel/misc_32.S b/arch/powerpc/kernel/misc_32.S index f7d760ab5ca1..7cd07b42ca1a 100644 --- a/arch/powerpc/kernel/misc_32.S +++ b/arch/powerpc/kernel/misc_32.S @@ -738,7 +738,7 @@ relocate_new_kernel: mr r5, r31 li r0, 0 -#elif defined(CONFIG_44x) && !defined(CONFIG_47x) +#elif defined(CONFIG_44x) && !defined(CONFIG_PPC_47x) /* * Code for setting up 1:1 mapping for PPC440x for KEXEC diff --git a/arch/powerpc/kernel/process.c b/arch/powerpc/kernel/process.c index 9054ca9ab4f9..6457574c0b2f 100644 --- a/arch/powerpc/kernel/process.c +++ b/arch/powerpc/kernel/process.c @@ -486,28 +486,6 @@ struct task_struct *__switch_to(struct task_struct *prev, new_thread = &new->thread; old_thread = ¤t->thread; -#if defined(CONFIG_PPC_BOOK3E_64) - /* XXX Current Book3E code doesn't deal with kernel side DBCR0, - * we always hold the user values, so we set it now. - * - * However, we ensure the kernel MSR:DE is appropriately cleared too - * to avoid spurrious single step exceptions in the kernel. - * - * This will have to change to merge with the ppc32 code at some point, - * but I don't like much what ppc32 is doing today so there's some - * thinking needed there - */ - if ((new_thread->dbcr0 | old_thread->dbcr0) & DBCR0_IDM) { - u32 dbcr0; - - mtmsr(mfmsr() & ~MSR_DE); - isync(); - dbcr0 = mfspr(SPRN_DBCR0); - dbcr0 = (dbcr0 & DBCR0_EDM) | new_thread->dbcr0; - mtspr(SPRN_DBCR0, dbcr0); - } -#endif /* CONFIG_PPC64_BOOK3E */ - #ifdef CONFIG_PPC64 /* * Collect processor utilization data per process @@ -657,7 +635,7 @@ void show_regs(struct pt_regs * regs) if ((regs->trap != 0xc00) && cpu_has_feature(CPU_FTR_CFAR)) printk("CFAR: "REG"\n", regs->orig_gpr3); if (trap == 0x300 || trap == 0x600) -#ifdef CONFIG_PPC_ADV_DEBUG_REGS +#if defined(CONFIG_4xx) || defined(CONFIG_BOOKE) printk("DEAR: "REG", ESR: "REG"\n", regs->dar, regs->dsisr); #else printk("DAR: "REG", DSISR: %08lx\n", regs->dar, regs->dsisr); diff --git a/arch/powerpc/kernel/prom_init.c b/arch/powerpc/kernel/prom_init.c index b4fa66127495..cc584865b3df 100644 --- a/arch/powerpc/kernel/prom_init.c +++ b/arch/powerpc/kernel/prom_init.c @@ -1579,10 +1579,8 @@ static void __init prom_instantiate_rtas(void) return; base = alloc_down(size, PAGE_SIZE, 0); - if (base == 0) { - prom_printf("RTAS allocation failed !\n"); - return; - } + if (base == 0) + prom_panic("Could not allocate memory for RTAS\n"); rtas_inst = call_prom("open", 1, 1, ADDR("/rtas")); if (!IHANDLE_VALID(rtas_inst)) { diff --git a/arch/powerpc/kernel/setup_32.c b/arch/powerpc/kernel/setup_32.c index c1ce86357ecb..ac7610815113 100644 --- a/arch/powerpc/kernel/setup_32.c +++ b/arch/powerpc/kernel/setup_32.c @@ -107,6 +107,8 @@ notrace unsigned long __init early_init(unsigned long dt_ptr) PTRRELOC(&__start___lwsync_fixup), PTRRELOC(&__stop___lwsync_fixup)); + do_final_fixups(); + return KERNELBASE + offset; } diff --git a/arch/powerpc/kernel/setup_64.c b/arch/powerpc/kernel/setup_64.c index 1a9dea80a69b..fb9bb46e7e88 100644 --- a/arch/powerpc/kernel/setup_64.c +++ b/arch/powerpc/kernel/setup_64.c @@ -359,6 +359,7 @@ void __init setup_system(void) &__start___fw_ftr_fixup, &__stop___fw_ftr_fixup); do_lwsync_fixups(cur_cpu_spec->cpu_features, &__start___lwsync_fixup, &__stop___lwsync_fixup); + do_final_fixups(); /* * Unflatten the device-tree passed by prom_init or kexec diff --git a/arch/powerpc/kernel/signal_32.c b/arch/powerpc/kernel/signal_32.c index 78b76dc54dfb..836a5a19eb2c 100644 --- a/arch/powerpc/kernel/signal_32.c +++ b/arch/powerpc/kernel/signal_32.c @@ -97,7 +97,7 @@ static inline int put_sigset_t(compat_sigset_t __user *uset, sigset_t *set) compat_sigset_t cset; switch (_NSIG_WORDS) { - case 4: cset.sig[5] = set->sig[3] & 0xffffffffull; + case 4: cset.sig[6] = set->sig[3] & 0xffffffffull; cset.sig[7] = set->sig[3] >> 32; case 3: cset.sig[4] = set->sig[2] & 0xffffffffull; cset.sig[5] = set->sig[2] >> 32; diff --git a/arch/powerpc/kernel/traps.c b/arch/powerpc/kernel/traps.c index 4e5908264d1a..5459d148a0f6 100644 --- a/arch/powerpc/kernel/traps.c +++ b/arch/powerpc/kernel/traps.c @@ -1298,14 +1298,12 @@ void __kprobes DebugException(struct pt_regs *regs, unsigned long debug_status) if (user_mode(regs)) { current->thread.dbcr0 &= ~DBCR0_IC; -#ifdef CONFIG_PPC_ADV_DEBUG_REGS if (DBCR_ACTIVE_EVENTS(current->thread.dbcr0, current->thread.dbcr1)) regs->msr |= MSR_DE; else /* Make sure the IDM bit is off */ current->thread.dbcr0 &= ~DBCR0_IDM; -#endif } _exception(SIGTRAP, regs, TRAP_TRACE, regs->nip); diff --git a/arch/powerpc/kvm/book3s_hv.c b/arch/powerpc/kvm/book3s_hv.c index 0cdbc07cec14..0cb137a9b038 100644 --- a/arch/powerpc/kvm/book3s_hv.c +++ b/arch/powerpc/kvm/book3s_hv.c @@ -44,6 +44,7 @@ #include <asm/processor.h> #include <asm/cputhreads.h> #include <asm/page.h> +#include <asm/hvcall.h> #include <linux/gfp.h> #include <linux/sched.h> #include <linux/vmalloc.h> diff --git a/arch/powerpc/kvm/book3s_pr.c b/arch/powerpc/kvm/book3s_pr.c index bc4d50dec78b..3c791e1eb675 100644 --- a/arch/powerpc/kvm/book3s_pr.c +++ b/arch/powerpc/kvm/book3s_pr.c @@ -151,16 +151,14 @@ void kvmppc_set_pvr(struct kvm_vcpu *vcpu, u32 pvr) #ifdef CONFIG_PPC_BOOK3S_64 if ((pvr >= 0x330000) && (pvr < 0x70330000)) { kvmppc_mmu_book3s_64_init(vcpu); - if (!to_book3s(vcpu)->hior_sregs) - to_book3s(vcpu)->hior = 0xfff00000; + to_book3s(vcpu)->hior = 0xfff00000; to_book3s(vcpu)->msr_mask = 0xffffffffffffffffULL; vcpu->arch.cpu_type = KVM_CPU_3S_64; } else #endif { kvmppc_mmu_book3s_32_init(vcpu); - if (!to_book3s(vcpu)->hior_sregs) - to_book3s(vcpu)->hior = 0; + to_book3s(vcpu)->hior = 0; to_book3s(vcpu)->msr_mask = 0xffffffffULL; vcpu->arch.cpu_type = KVM_CPU_3S_32; } @@ -797,9 +795,6 @@ int kvm_arch_vcpu_ioctl_get_sregs(struct kvm_vcpu *vcpu, } } - if (sregs->u.s.flags & KVM_SREGS_S_HIOR) - sregs->u.s.hior = to_book3s(vcpu)->hior; - return 0; } @@ -836,11 +831,6 @@ int kvm_arch_vcpu_ioctl_set_sregs(struct kvm_vcpu *vcpu, /* Flush the MMU after messing with the segments */ kvmppc_mmu_pte_flush(vcpu, 0, 0); - if (sregs->u.s.flags & KVM_SREGS_S_HIOR) { - to_book3s(vcpu)->hior_sregs = true; - to_book3s(vcpu)->hior = sregs->u.s.hior; - } - return 0; } diff --git a/arch/powerpc/kvm/powerpc.c b/arch/powerpc/kvm/powerpc.c index efbf9ad87203..607fbdf24b84 100644 --- a/arch/powerpc/kvm/powerpc.c +++ b/arch/powerpc/kvm/powerpc.c @@ -208,7 +208,6 @@ int kvm_dev_ioctl_check_extension(long ext) case KVM_CAP_PPC_BOOKE_SREGS: #else case KVM_CAP_PPC_SEGSTATE: - case KVM_CAP_PPC_HIOR: case KVM_CAP_PPC_PAPR: #endif case KVM_CAP_PPC_UNSET_IRQ: diff --git a/arch/powerpc/lib/feature-fixups.c b/arch/powerpc/lib/feature-fixups.c index 0d08d0171392..7a8a7487cee8 100644 --- a/arch/powerpc/lib/feature-fixups.c +++ b/arch/powerpc/lib/feature-fixups.c @@ -18,6 +18,8 @@ #include <linux/init.h> #include <asm/cputable.h> #include <asm/code-patching.h> +#include <asm/page.h> +#include <asm/sections.h> struct fixup_entry { @@ -128,6 +130,27 @@ void do_lwsync_fixups(unsigned long value, void *fixup_start, void *fixup_end) } } +void do_final_fixups(void) +{ +#if defined(CONFIG_PPC64) && defined(CONFIG_RELOCATABLE) + int *src, *dest; + unsigned long length; + + if (PHYSICAL_START == 0) + return; + + src = (int *)(KERNELBASE + PHYSICAL_START); + dest = (int *)KERNELBASE; + length = (__end_interrupts - _stext) / sizeof(int); + + while (length--) { + patch_instruction(dest, *src); + src++; + dest++; + } +#endif +} + #ifdef CONFIG_FTR_FIXUP_SELFTEST #define check(x) \ diff --git a/arch/powerpc/mm/hugetlbpage.c b/arch/powerpc/mm/hugetlbpage.c index 5964371303ac..8558b572e55d 100644 --- a/arch/powerpc/mm/hugetlbpage.c +++ b/arch/powerpc/mm/hugetlbpage.c @@ -15,6 +15,7 @@ #include <linux/of_fdt.h> #include <linux/memblock.h> #include <linux/bootmem.h> +#include <linux/moduleparam.h> #include <asm/pgtable.h> #include <asm/pgalloc.h> #include <asm/tlb.h> diff --git a/arch/powerpc/platforms/85xx/Kconfig b/arch/powerpc/platforms/85xx/Kconfig index 45023e26aea3..d7946be298b6 100644 --- a/arch/powerpc/platforms/85xx/Kconfig +++ b/arch/powerpc/platforms/85xx/Kconfig @@ -203,7 +203,7 @@ config P3060_QDS select PPC_E500MC select PHYS_64BIT select SWIOTLB - select MPC8xxx_GPIO + select GPIO_MPC8XXX select HAS_RAPIDIO select PPC_EPAPR_HV_PIC help diff --git a/arch/powerpc/platforms/85xx/p3060_qds.c b/arch/powerpc/platforms/85xx/p3060_qds.c index 01dcf44871e9..081cf4ac1881 100644 --- a/arch/powerpc/platforms/85xx/p3060_qds.c +++ b/arch/powerpc/platforms/85xx/p3060_qds.c @@ -70,7 +70,7 @@ define_machine(p3060_qds) { .power_save = e500_idle, }; -machine_device_initcall(p3060_qds, declare_of_platform_devices); +machine_device_initcall(p3060_qds, corenet_ds_publish_devices); #ifdef CONFIG_SWIOTLB machine_arch_initcall(p3060_qds, swiotlb_setup_bus_notifier); diff --git a/arch/powerpc/platforms/Kconfig b/arch/powerpc/platforms/Kconfig index e4588721ef34..3fe6d927ad70 100644 --- a/arch/powerpc/platforms/Kconfig +++ b/arch/powerpc/platforms/Kconfig @@ -347,7 +347,7 @@ config SIMPLE_GPIO config MCU_MPC8349EMITX bool "MPC8349E-mITX MCU driver" - depends on I2C && PPC_83xx + depends on I2C=y && PPC_83xx select GENERIC_GPIO select ARCH_REQUIRE_GPIOLIB help diff --git a/arch/powerpc/platforms/ps3/interrupt.c b/arch/powerpc/platforms/ps3/interrupt.c index 404bc52b7806..1d6f4f478fe2 100644 --- a/arch/powerpc/platforms/ps3/interrupt.c +++ b/arch/powerpc/platforms/ps3/interrupt.c @@ -88,6 +88,7 @@ struct ps3_private { struct ps3_bmp bmp __attribute__ ((aligned (PS3_BMP_MINALIGN))); u64 ppe_id; u64 thread_id; + unsigned long ipi_mask; }; static DEFINE_PER_CPU(struct ps3_private, ps3_private); @@ -144,7 +145,11 @@ static void ps3_chip_unmask(struct irq_data *d) static void ps3_chip_eoi(struct irq_data *d) { const struct ps3_private *pd = irq_data_get_irq_chip_data(d); - lv1_end_of_interrupt_ext(pd->ppe_id, pd->thread_id, d->irq); + + /* non-IPIs are EOIed here. */ + + if (!test_bit(63 - d->irq, &pd->ipi_mask)) + lv1_end_of_interrupt_ext(pd->ppe_id, pd->thread_id, d->irq); } /** @@ -691,6 +696,16 @@ void __init ps3_register_ipi_debug_brk(unsigned int cpu, unsigned int virq) cpu, virq, pd->bmp.ipi_debug_brk_mask); } +void __init ps3_register_ipi_irq(unsigned int cpu, unsigned int virq) +{ + struct ps3_private *pd = &per_cpu(ps3_private, cpu); + + set_bit(63 - virq, &pd->ipi_mask); + + DBG("%s:%d: cpu %u, virq %u, ipi_mask %lxh\n", __func__, __LINE__, + cpu, virq, pd->ipi_mask); +} + static unsigned int ps3_get_irq(void) { struct ps3_private *pd = &__get_cpu_var(ps3_private); @@ -720,6 +735,12 @@ static unsigned int ps3_get_irq(void) BUG(); } #endif + + /* IPIs are EOIed here. */ + + if (test_bit(63 - plug, &pd->ipi_mask)) + lv1_end_of_interrupt_ext(pd->ppe_id, pd->thread_id, plug); + return plug; } diff --git a/arch/powerpc/platforms/ps3/platform.h b/arch/powerpc/platforms/ps3/platform.h index 9a196a88eda7..1a633ed0fe98 100644 --- a/arch/powerpc/platforms/ps3/platform.h +++ b/arch/powerpc/platforms/ps3/platform.h @@ -43,6 +43,7 @@ void ps3_mm_shutdown(void); void ps3_init_IRQ(void); void ps3_shutdown_IRQ(int cpu); void __init ps3_register_ipi_debug_brk(unsigned int cpu, unsigned int virq); +void __init ps3_register_ipi_irq(unsigned int cpu, unsigned int virq); /* smp */ diff --git a/arch/powerpc/platforms/ps3/smp.c b/arch/powerpc/platforms/ps3/smp.c index 4c44794faac0..efc1cd8c034a 100644 --- a/arch/powerpc/platforms/ps3/smp.c +++ b/arch/powerpc/platforms/ps3/smp.c @@ -59,46 +59,49 @@ static void ps3_smp_message_pass(int cpu, int msg) static int ps3_smp_probe(void) { - return 2; -} + int cpu; -static void __init ps3_smp_setup_cpu(int cpu) -{ - int result; - unsigned int *virqs = per_cpu(ps3_ipi_virqs, cpu); - int i; + for (cpu = 0; cpu < 2; cpu++) { + int result; + unsigned int *virqs = per_cpu(ps3_ipi_virqs, cpu); + int i; - DBG(" -> %s:%d: (%d)\n", __func__, __LINE__, cpu); + DBG(" -> %s:%d: (%d)\n", __func__, __LINE__, cpu); - /* - * Check assumptions on ps3_ipi_virqs[] indexing. If this - * check fails, then a different mapping of PPC_MSG_ - * to index needs to be setup. - */ + /* + * Check assumptions on ps3_ipi_virqs[] indexing. If this + * check fails, then a different mapping of PPC_MSG_ + * to index needs to be setup. + */ - BUILD_BUG_ON(PPC_MSG_CALL_FUNCTION != 0); - BUILD_BUG_ON(PPC_MSG_RESCHEDULE != 1); - BUILD_BUG_ON(PPC_MSG_CALL_FUNC_SINGLE != 2); - BUILD_BUG_ON(PPC_MSG_DEBUGGER_BREAK != 3); + BUILD_BUG_ON(PPC_MSG_CALL_FUNCTION != 0); + BUILD_BUG_ON(PPC_MSG_RESCHEDULE != 1); + BUILD_BUG_ON(PPC_MSG_CALL_FUNC_SINGLE != 2); + BUILD_BUG_ON(PPC_MSG_DEBUGGER_BREAK != 3); - for (i = 0; i < MSG_COUNT; i++) { - result = ps3_event_receive_port_setup(cpu, &virqs[i]); + for (i = 0; i < MSG_COUNT; i++) { + result = ps3_event_receive_port_setup(cpu, &virqs[i]); - if (result) - continue; + if (result) + continue; - DBG("%s:%d: (%d, %d) => virq %u\n", - __func__, __LINE__, cpu, i, virqs[i]); + DBG("%s:%d: (%d, %d) => virq %u\n", + __func__, __LINE__, cpu, i, virqs[i]); - result = smp_request_message_ipi(virqs[i], i); + result = smp_request_message_ipi(virqs[i], i); - if (result) - virqs[i] = NO_IRQ; - } + if (result) + virqs[i] = NO_IRQ; + else + ps3_register_ipi_irq(cpu, virqs[i]); + } - ps3_register_ipi_debug_brk(cpu, virqs[PPC_MSG_DEBUGGER_BREAK]); + ps3_register_ipi_debug_brk(cpu, virqs[PPC_MSG_DEBUGGER_BREAK]); - DBG(" <- %s:%d: (%d)\n", __func__, __LINE__, cpu); + DBG(" <- %s:%d: (%d)\n", __func__, __LINE__, cpu); + } + + return 2; } void ps3_smp_cleanup_cpu(int cpu) @@ -121,7 +124,6 @@ static struct smp_ops_t ps3_smp_ops = { .probe = ps3_smp_probe, .message_pass = ps3_smp_message_pass, .kick_cpu = smp_generic_kick_cpu, - .setup_cpu = ps3_smp_setup_cpu, }; void smp_init_ps3(void) diff --git a/arch/powerpc/sysdev/ehv_pic.c b/arch/powerpc/sysdev/ehv_pic.c index af1a5df46b3e..b6731e4a6646 100644 --- a/arch/powerpc/sysdev/ehv_pic.c +++ b/arch/powerpc/sysdev/ehv_pic.c @@ -280,6 +280,7 @@ void __init ehv_pic_init(void) if (!ehv_pic->irqhost) { of_node_put(np); + kfree(ehv_pic); return; } diff --git a/arch/powerpc/sysdev/fsl_lbc.c b/arch/powerpc/sysdev/fsl_lbc.c index c4d96fa32ba5..d5c3c90ee698 100644 --- a/arch/powerpc/sysdev/fsl_lbc.c +++ b/arch/powerpc/sysdev/fsl_lbc.c @@ -328,6 +328,7 @@ static int __devinit fsl_lbc_ctrl_probe(struct platform_device *dev) err: iounmap(fsl_lbc_ctrl_dev->regs); kfree(fsl_lbc_ctrl_dev); + fsl_lbc_ctrl_dev = NULL; return ret; } diff --git a/arch/powerpc/sysdev/qe_lib/qe.c b/arch/powerpc/sysdev/qe_lib/qe.c index 3363fbc964f8..ceb09cbd2329 100644 --- a/arch/powerpc/sysdev/qe_lib/qe.c +++ b/arch/powerpc/sysdev/qe_lib/qe.c @@ -216,7 +216,7 @@ int qe_setbrg(enum qe_clock brg, unsigned int rate, unsigned int multiplier) /* Errata QE_General4, which affects some MPC832x and MPC836x SOCs, says that the BRG divisor must be even if you're not using divide-by-16 mode. */ - if (!div16 && (divisor & 1)) + if (!div16 && (divisor & 1) && (divisor > 3)) divisor++; tempval = ((divisor - 1) << QE_BRGC_DIVISOR_SHIFT) | diff --git a/arch/s390/include/asm/kvm_host.h b/arch/s390/include/asm/kvm_host.h index 24e18473d926..b0c235cb6ad5 100644 --- a/arch/s390/include/asm/kvm_host.h +++ b/arch/s390/include/asm/kvm_host.h @@ -47,7 +47,7 @@ struct sca_block { #define KVM_HPAGE_MASK(x) (~(KVM_HPAGE_SIZE(x) - 1)) #define KVM_PAGES_PER_HPAGE(x) (KVM_HPAGE_SIZE(x) / PAGE_SIZE) -#define CPUSTAT_HOST 0x80000000 +#define CPUSTAT_STOPPED 0x80000000 #define CPUSTAT_WAIT 0x10000000 #define CPUSTAT_ECALL_PEND 0x08000000 #define CPUSTAT_STOP_INT 0x04000000 @@ -139,6 +139,7 @@ struct kvm_vcpu_stat { u32 instruction_stfl; u32 instruction_tprot; u32 instruction_sigp_sense; + u32 instruction_sigp_sense_running; u32 instruction_sigp_external_call; u32 instruction_sigp_emergency; u32 instruction_sigp_stop; diff --git a/arch/s390/kvm/diag.c b/arch/s390/kvm/diag.c index 87cedd61be04..8943e82cd4d9 100644 --- a/arch/s390/kvm/diag.c +++ b/arch/s390/kvm/diag.c @@ -70,7 +70,7 @@ static int __diag_ipl_functions(struct kvm_vcpu *vcpu) return -EOPNOTSUPP; } - atomic_clear_mask(CPUSTAT_RUNNING, &vcpu->arch.sie_block->cpuflags); + atomic_set_mask(CPUSTAT_STOPPED, &vcpu->arch.sie_block->cpuflags); vcpu->run->s390_reset_flags |= KVM_S390_RESET_SUBSYSTEM; vcpu->run->s390_reset_flags |= KVM_S390_RESET_IPL; vcpu->run->s390_reset_flags |= KVM_S390_RESET_CPU_INIT; diff --git a/arch/s390/kvm/intercept.c b/arch/s390/kvm/intercept.c index c7c51898984e..02434543eabb 100644 --- a/arch/s390/kvm/intercept.c +++ b/arch/s390/kvm/intercept.c @@ -132,7 +132,6 @@ static int handle_stop(struct kvm_vcpu *vcpu) int rc = 0; vcpu->stat.exit_stop_request++; - atomic_clear_mask(CPUSTAT_RUNNING, &vcpu->arch.sie_block->cpuflags); spin_lock_bh(&vcpu->arch.local_int.lock); if (vcpu->arch.local_int.action_bits & ACTION_STORE_ON_STOP) { vcpu->arch.local_int.action_bits &= ~ACTION_STORE_ON_STOP; @@ -149,6 +148,8 @@ static int handle_stop(struct kvm_vcpu *vcpu) } if (vcpu->arch.local_int.action_bits & ACTION_STOP_ON_STOP) { + atomic_set_mask(CPUSTAT_STOPPED, + &vcpu->arch.sie_block->cpuflags); vcpu->arch.local_int.action_bits &= ~ACTION_STOP_ON_STOP; VCPU_EVENT(vcpu, 3, "%s", "cpu stopped"); rc = -EOPNOTSUPP; diff --git a/arch/s390/kvm/interrupt.c b/arch/s390/kvm/interrupt.c index 87c16705b381..278ee009ce65 100644 --- a/arch/s390/kvm/interrupt.c +++ b/arch/s390/kvm/interrupt.c @@ -252,6 +252,7 @@ static void __do_deliver_interrupt(struct kvm_vcpu *vcpu, offsetof(struct _lowcore, restart_psw), sizeof(psw_t)); if (rc == -EFAULT) exception = 1; + atomic_clear_mask(CPUSTAT_STOPPED, &vcpu->arch.sie_block->cpuflags); break; case KVM_S390_PROGRAM_INT: diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c index 0bd3bea1e4cd..d1c445732451 100644 --- a/arch/s390/kvm/kvm-s390.c +++ b/arch/s390/kvm/kvm-s390.c @@ -65,6 +65,7 @@ struct kvm_stats_debugfs_item debugfs_entries[] = { { "instruction_stfl", VCPU_STAT(instruction_stfl) }, { "instruction_tprot", VCPU_STAT(instruction_tprot) }, { "instruction_sigp_sense", VCPU_STAT(instruction_sigp_sense) }, + { "instruction_sigp_sense_running", VCPU_STAT(instruction_sigp_sense_running) }, { "instruction_sigp_external_call", VCPU_STAT(instruction_sigp_external_call) }, { "instruction_sigp_emergency", VCPU_STAT(instruction_sigp_emergency) }, { "instruction_sigp_stop", VCPU_STAT(instruction_sigp_stop) }, @@ -127,6 +128,7 @@ int kvm_dev_ioctl_check_extension(long ext) switch (ext) { case KVM_CAP_S390_PSW: case KVM_CAP_S390_GMAP: + case KVM_CAP_SYNC_MMU: r = 1; break; default: @@ -270,10 +272,12 @@ void kvm_arch_vcpu_load(struct kvm_vcpu *vcpu, int cpu) restore_fp_regs(&vcpu->arch.guest_fpregs); restore_access_regs(vcpu->arch.guest_acrs); gmap_enable(vcpu->arch.gmap); + atomic_set_mask(CPUSTAT_RUNNING, &vcpu->arch.sie_block->cpuflags); } void kvm_arch_vcpu_put(struct kvm_vcpu *vcpu) { + atomic_clear_mask(CPUSTAT_RUNNING, &vcpu->arch.sie_block->cpuflags); gmap_disable(vcpu->arch.gmap); save_fp_regs(&vcpu->arch.guest_fpregs); save_access_regs(vcpu->arch.guest_acrs); @@ -301,7 +305,9 @@ static void kvm_s390_vcpu_initial_reset(struct kvm_vcpu *vcpu) int kvm_arch_vcpu_setup(struct kvm_vcpu *vcpu) { - atomic_set(&vcpu->arch.sie_block->cpuflags, CPUSTAT_ZARCH | CPUSTAT_SM); + atomic_set(&vcpu->arch.sie_block->cpuflags, CPUSTAT_ZARCH | + CPUSTAT_SM | + CPUSTAT_STOPPED); vcpu->arch.sie_block->ecb = 6; vcpu->arch.sie_block->eca = 0xC1002001U; vcpu->arch.sie_block->fac = (int) (long) facilities; @@ -428,7 +434,7 @@ static int kvm_arch_vcpu_ioctl_set_initial_psw(struct kvm_vcpu *vcpu, psw_t psw) { int rc = 0; - if (atomic_read(&vcpu->arch.sie_block->cpuflags) & CPUSTAT_RUNNING) + if (!(atomic_read(&vcpu->arch.sie_block->cpuflags) & CPUSTAT_STOPPED)) rc = -EBUSY; else { vcpu->run->psw_mask = psw.mask; @@ -501,7 +507,7 @@ rerun_vcpu: if (vcpu->sigset_active) sigprocmask(SIG_SETMASK, &vcpu->sigset, &sigsaved); - atomic_set_mask(CPUSTAT_RUNNING, &vcpu->arch.sie_block->cpuflags); + atomic_clear_mask(CPUSTAT_STOPPED, &vcpu->arch.sie_block->cpuflags); BUG_ON(vcpu->kvm->arch.float_int.local_int[vcpu->vcpu_id] == NULL); diff --git a/arch/s390/kvm/priv.c b/arch/s390/kvm/priv.c index 391626361084..d02638959922 100644 --- a/arch/s390/kvm/priv.c +++ b/arch/s390/kvm/priv.c @@ -336,6 +336,7 @@ static int handle_tprot(struct kvm_vcpu *vcpu) u64 address1 = disp1 + base1 ? vcpu->arch.guest_gprs[base1] : 0; u64 address2 = disp2 + base2 ? vcpu->arch.guest_gprs[base2] : 0; struct vm_area_struct *vma; + unsigned long user_address; vcpu->stat.instruction_tprot++; @@ -349,9 +350,14 @@ static int handle_tprot(struct kvm_vcpu *vcpu) return -EOPNOTSUPP; + /* we must resolve the address without holding the mmap semaphore. + * This is ok since the userspace hypervisor is not supposed to change + * the mapping while the guest queries the memory. Otherwise the guest + * might crash or get wrong info anyway. */ + user_address = (unsigned long) __guestaddr_to_user(vcpu, address1); + down_read(¤t->mm->mmap_sem); - vma = find_vma(current->mm, - (unsigned long) __guestaddr_to_user(vcpu, address1)); + vma = find_vma(current->mm, user_address); if (!vma) { up_read(¤t->mm->mmap_sem); return kvm_s390_inject_program_int(vcpu, PGM_ADDRESSING); diff --git a/arch/s390/kvm/sigp.c b/arch/s390/kvm/sigp.c index f815118835f3..0a7941d74bc6 100644 --- a/arch/s390/kvm/sigp.c +++ b/arch/s390/kvm/sigp.c @@ -31,9 +31,11 @@ #define SIGP_SET_PREFIX 0x0d #define SIGP_STORE_STATUS_ADDR 0x0e #define SIGP_SET_ARCH 0x12 +#define SIGP_SENSE_RUNNING 0x15 /* cpu status bits */ #define SIGP_STAT_EQUIPMENT_CHECK 0x80000000UL +#define SIGP_STAT_NOT_RUNNING 0x00000400UL #define SIGP_STAT_INCORRECT_STATE 0x00000200UL #define SIGP_STAT_INVALID_PARAMETER 0x00000100UL #define SIGP_STAT_EXT_CALL_PENDING 0x00000080UL @@ -57,8 +59,8 @@ static int __sigp_sense(struct kvm_vcpu *vcpu, u16 cpu_addr, spin_lock(&fi->lock); if (fi->local_int[cpu_addr] == NULL) rc = 3; /* not operational */ - else if (atomic_read(fi->local_int[cpu_addr]->cpuflags) - & CPUSTAT_RUNNING) { + else if (!(atomic_read(fi->local_int[cpu_addr]->cpuflags) + & CPUSTAT_STOPPED)) { *reg &= 0xffffffff00000000UL; rc = 1; /* status stored */ } else { @@ -251,7 +253,7 @@ static int __sigp_set_prefix(struct kvm_vcpu *vcpu, u16 cpu_addr, u32 address, spin_lock_bh(&li->lock); /* cpu must be in stopped state */ - if (atomic_read(li->cpuflags) & CPUSTAT_RUNNING) { + if (!(atomic_read(li->cpuflags) & CPUSTAT_STOPPED)) { rc = 1; /* incorrect state */ *reg &= SIGP_STAT_INCORRECT_STATE; kfree(inti); @@ -275,6 +277,38 @@ out_fi: return rc; } +static int __sigp_sense_running(struct kvm_vcpu *vcpu, u16 cpu_addr, + unsigned long *reg) +{ + int rc; + struct kvm_s390_float_interrupt *fi = &vcpu->kvm->arch.float_int; + + if (cpu_addr >= KVM_MAX_VCPUS) + return 3; /* not operational */ + + spin_lock(&fi->lock); + if (fi->local_int[cpu_addr] == NULL) + rc = 3; /* not operational */ + else { + if (atomic_read(fi->local_int[cpu_addr]->cpuflags) + & CPUSTAT_RUNNING) { + /* running */ + rc = 1; + } else { + /* not running */ + *reg &= 0xffffffff00000000UL; + *reg |= SIGP_STAT_NOT_RUNNING; + rc = 0; + } + } + spin_unlock(&fi->lock); + + VCPU_EVENT(vcpu, 4, "sensed running status of cpu %x rc %x", cpu_addr, + rc); + + return rc; +} + int kvm_s390_handle_sigp(struct kvm_vcpu *vcpu) { int r1 = (vcpu->arch.sie_block->ipa & 0x00f0) >> 4; @@ -331,6 +365,11 @@ int kvm_s390_handle_sigp(struct kvm_vcpu *vcpu) rc = __sigp_set_prefix(vcpu, cpu_addr, parameter, &vcpu->arch.guest_gprs[r1]); break; + case SIGP_SENSE_RUNNING: + vcpu->stat.instruction_sigp_sense_running++; + rc = __sigp_sense_running(vcpu, cpu_addr, + &vcpu->arch.guest_gprs[r1]); + break; case SIGP_RESTART: vcpu->stat.instruction_sigp_restart++; /* user space must know about restart */ diff --git a/arch/sh/boards/board-sh7757lcr.c b/arch/sh/boards/board-sh7757lcr.c index ec8c84c14b17..895e337c79b6 100644 --- a/arch/sh/boards/board-sh7757lcr.c +++ b/arch/sh/boards/board-sh7757lcr.c @@ -50,9 +50,9 @@ static struct platform_device heartbeat_device = { #define GBECONT 0xffc10100 #define GBECONT_RMII1 BIT(17) #define GBECONT_RMII0 BIT(16) -static void sh7757_eth_set_mdio_gate(unsigned long addr) +static void sh7757_eth_set_mdio_gate(void *addr) { - if ((addr & 0x00000fff) < 0x0800) + if (((unsigned long)addr & 0x00000fff) < 0x0800) writel(readl(GBECONT) | GBECONT_RMII0, GBECONT); else writel(readl(GBECONT) | GBECONT_RMII1, GBECONT); @@ -116,9 +116,9 @@ static struct platform_device sh7757_eth1_device = { }, }; -static void sh7757_eth_giga_set_mdio_gate(unsigned long addr) +static void sh7757_eth_giga_set_mdio_gate(void *addr) { - if ((addr & 0x00000fff) < 0x0800) { + if (((unsigned long)addr & 0x00000fff) < 0x0800) { gpio_set_value(GPIO_PTT4, 1); writel(readl(GBECONT) & ~GBECONT_RMII0, GBECONT); } else { @@ -210,8 +210,12 @@ static struct resource sh_mmcif_resources[] = { }; static struct sh_mmcif_dma sh7757lcr_mmcif_dma = { - .chan_priv_tx = SHDMA_SLAVE_MMCIF_TX, - .chan_priv_rx = SHDMA_SLAVE_MMCIF_RX, + .chan_priv_tx = { + .slave_id = SHDMA_SLAVE_MMCIF_TX, + }, + .chan_priv_rx = { + .slave_id = SHDMA_SLAVE_MMCIF_RX, + } }; static struct sh_mmcif_plat_data sh_mmcif_plat = { diff --git a/arch/sh/include/cpu-sh4/cpu/sh7724.h b/arch/sh/include/cpu-sh4/cpu/sh7724.h index cbc47e6bcab5..36ce466cbf07 100644 --- a/arch/sh/include/cpu-sh4/cpu/sh7724.h +++ b/arch/sh/include/cpu-sh4/cpu/sh7724.h @@ -314,5 +314,6 @@ enum { extern struct clk sh7724_fsimcka_clk; extern struct clk sh7724_fsimckb_clk; +extern struct clk sh7724_dv_clki; #endif /* __ASM_SH7724_H__ */ diff --git a/arch/sh/kernel/cpu/sh4a/clock-sh7723.c b/arch/sh/kernel/cpu/sh4a/clock-sh7723.c index 3cc3827380e3..f254166e1f3b 100644 --- a/arch/sh/kernel/cpu/sh4a/clock-sh7723.c +++ b/arch/sh/kernel/cpu/sh4a/clock-sh7723.c @@ -233,73 +233,10 @@ static struct clk_lookup lookups[] = { CLKDEV_CON_ID("sh0", &mstp_clks[HWBLK_SHYWAY]), CLKDEV_CON_ID("hudi0", &mstp_clks[HWBLK_HUDI]), CLKDEV_CON_ID("ubc0", &mstp_clks[HWBLK_UBC]), - { - /* TMU0 */ - .dev_id = "sh_tmu.0", - .con_id = "tmu_fck", - .clk = &mstp_clks[HWBLK_TMU0], - }, { - /* TMU1 */ - .dev_id = "sh_tmu.1", - .con_id = "tmu_fck", - .clk = &mstp_clks[HWBLK_TMU0], - }, { - /* TMU2 */ - .dev_id = "sh_tmu.2", - .con_id = "tmu_fck", - .clk = &mstp_clks[HWBLK_TMU0], - }, CLKDEV_CON_ID("cmt_fck", &mstp_clks[HWBLK_CMT]), CLKDEV_CON_ID("rwdt0", &mstp_clks[HWBLK_RWDT]), CLKDEV_CON_ID("dmac1", &mstp_clks[HWBLK_DMAC1]), - { - /* TMU3 */ - .dev_id = "sh_tmu.3", - .con_id = "tmu_fck", - .clk = &mstp_clks[HWBLK_TMU1], - }, { - /* TMU4 */ - .dev_id = "sh_tmu.4", - .con_id = "tmu_fck", - .clk = &mstp_clks[HWBLK_TMU1], - }, { - /* TMU5 */ - .dev_id = "sh_tmu.5", - .con_id = "tmu_fck", - .clk = &mstp_clks[HWBLK_TMU1], - }, CLKDEV_CON_ID("flctl0", &mstp_clks[HWBLK_FLCTL]), - { - /* SCIF0 */ - .dev_id = "sh-sci.0", - .con_id = "sci_fck", - .clk = &mstp_clks[HWBLK_SCIF0], - }, { - /* SCIF1 */ - .dev_id = "sh-sci.1", - .con_id = "sci_fck", - .clk = &mstp_clks[HWBLK_SCIF1], - }, { - /* SCIF2 */ - .dev_id = "sh-sci.2", - .con_id = "sci_fck", - .clk = &mstp_clks[HWBLK_SCIF2], - }, { - /* SCIF3 */ - .dev_id = "sh-sci.3", - .con_id = "sci_fck", - .clk = &mstp_clks[HWBLK_SCIF3], - }, { - /* SCIF4 */ - .dev_id = "sh-sci.4", - .con_id = "sci_fck", - .clk = &mstp_clks[HWBLK_SCIF4], - }, { - /* SCIF5 */ - .dev_id = "sh-sci.5", - .con_id = "sci_fck", - .clk = &mstp_clks[HWBLK_SCIF5], - }, CLKDEV_CON_ID("msiof0", &mstp_clks[HWBLK_MSIOF0]), CLKDEV_CON_ID("msiof1", &mstp_clks[HWBLK_MSIOF1]), CLKDEV_CON_ID("meram0", &mstp_clks[HWBLK_MERAM]), @@ -324,6 +261,19 @@ static struct clk_lookup lookups[] = { CLKDEV_CON_ID("veu0", &mstp_clks[HWBLK_VEU2H0]), CLKDEV_CON_ID("vpu0", &mstp_clks[HWBLK_VPU]), CLKDEV_CON_ID("lcdc0", &mstp_clks[HWBLK_LCDC]), + + CLKDEV_ICK_ID("tmu_fck", "sh_tmu.0", &mstp_clks[HWBLK_TMU0]), + CLKDEV_ICK_ID("tmu_fck", "sh_tmu.1", &mstp_clks[HWBLK_TMU0]), + CLKDEV_ICK_ID("tmu_fck", "sh_tmu.2", &mstp_clks[HWBLK_TMU0]), + CLKDEV_ICK_ID("tmu_fck", "sh_tmu.3", &mstp_clks[HWBLK_TMU1]), + CLKDEV_ICK_ID("tmu_fck", "sh_tmu.4", &mstp_clks[HWBLK_TMU1]), + CLKDEV_ICK_ID("tmu_fck", "sh_tmu.5", &mstp_clks[HWBLK_TMU1]), + CLKDEV_ICK_ID("sci_fck", "sh-sci.0", &mstp_clks[HWBLK_SCIF0]), + CLKDEV_ICK_ID("sci_fck", "sh-sci.1", &mstp_clks[HWBLK_SCIF1]), + CLKDEV_ICK_ID("sci_fck", "sh-sci.2", &mstp_clks[HWBLK_SCIF2]), + CLKDEV_ICK_ID("sci_fck", "sh-sci.3", &mstp_clks[HWBLK_SCIF3]), + CLKDEV_ICK_ID("sci_fck", "sh-sci.4", &mstp_clks[HWBLK_SCIF4]), + CLKDEV_ICK_ID("sci_fck", "sh-sci.5", &mstp_clks[HWBLK_SCIF5]), }; int __init arch_clk_init(void) diff --git a/arch/sh/kernel/cpu/sh4a/clock-sh7724.c b/arch/sh/kernel/cpu/sh4a/clock-sh7724.c index 8668f557e0ac..9ee4b3667ddf 100644 --- a/arch/sh/kernel/cpu/sh4a/clock-sh7724.c +++ b/arch/sh/kernel/cpu/sh4a/clock-sh7724.c @@ -111,13 +111,16 @@ static struct clk div3_clk = { .parent = &pll_clk, }; -/* External input clock (pin name: FSIMCKA/FSIMCKB ) */ +/* External input clock (pin name: FSIMCKA/FSIMCKB/DV_CLKI ) */ struct clk sh7724_fsimcka_clk = { }; struct clk sh7724_fsimckb_clk = { }; +struct clk sh7724_dv_clki = { +}; + static struct clk *main_clks[] = { &r_clk, &extal_clk, @@ -126,6 +129,7 @@ static struct clk *main_clks[] = { &div3_clk, &sh7724_fsimcka_clk, &sh7724_fsimckb_clk, + &sh7724_dv_clki, }; static void div4_kick(struct clk *clk) @@ -163,17 +167,20 @@ struct clk div4_clks[DIV4_NR] = { [DIV4_M1] = DIV4(FRQCRB, 4, 0x2f7c, CLK_ENABLE_ON_INIT), }; -enum { DIV6_V, DIV6_I, DIV6_S, DIV6_NR }; +enum { DIV6_V, DIV6_I, DIV6_S, DIV6_FA, DIV6_FB, DIV6_NR }; -static struct clk div6_clks[DIV6_NR] = { - [DIV6_V] = SH_CLK_DIV6(&div3_clk, VCLKCR, 0), - [DIV6_I] = SH_CLK_DIV6(&div3_clk, IRDACLKCR, 0), - [DIV6_S] = SH_CLK_DIV6(&div3_clk, SPUCLKCR, CLK_ENABLE_ON_INIT), +/* Indices are important - they are the actual src selecting values */ +static struct clk *common_parent[] = { + [0] = &div3_clk, + [1] = NULL, }; -enum { DIV6_FA, DIV6_FB, DIV6_REPARENT_NR }; +static struct clk *vclkcr_parent[8] = { + [0] = &div3_clk, + [2] = &sh7724_dv_clki, + [4] = &extal_clk, +}; -/* Indices are important - they are the actual src selecting values */ static struct clk *fclkacr_parent[] = { [0] = &div3_clk, [1] = NULL, @@ -188,10 +195,16 @@ static struct clk *fclkbcr_parent[] = { [3] = NULL, }; -static struct clk div6_reparent_clks[DIV6_REPARENT_NR] = { - [DIV6_FA] = SH_CLK_DIV6_EXT(&div3_clk, FCLKACR, 0, +static struct clk div6_clks[DIV6_NR] = { + [DIV6_V] = SH_CLK_DIV6_EXT(VCLKCR, 0, + vclkcr_parent, ARRAY_SIZE(vclkcr_parent), 12, 3), + [DIV6_I] = SH_CLK_DIV6_EXT(IRDACLKCR, 0, + common_parent, ARRAY_SIZE(common_parent), 6, 1), + [DIV6_S] = SH_CLK_DIV6_EXT(SPUCLKCR, CLK_ENABLE_ON_INIT, + common_parent, ARRAY_SIZE(common_parent), 6, 1), + [DIV6_FA] = SH_CLK_DIV6_EXT(FCLKACR, 0, fclkacr_parent, ARRAY_SIZE(fclkacr_parent), 6, 2), - [DIV6_FB] = SH_CLK_DIV6_EXT(&div3_clk, FCLKBCR, 0, + [DIV6_FB] = SH_CLK_DIV6_EXT(FCLKBCR, 0, fclkbcr_parent, ARRAY_SIZE(fclkbcr_parent), 6, 2), }; @@ -269,8 +282,8 @@ static struct clk_lookup lookups[] = { /* DIV6 clocks */ CLKDEV_CON_ID("video_clk", &div6_clks[DIV6_V]), - CLKDEV_CON_ID("fsia_clk", &div6_reparent_clks[DIV6_FA]), - CLKDEV_CON_ID("fsib_clk", &div6_reparent_clks[DIV6_FB]), + CLKDEV_CON_ID("fsia_clk", &div6_clks[DIV6_FA]), + CLKDEV_CON_ID("fsib_clk", &div6_clks[DIV6_FB]), CLKDEV_CON_ID("irda_clk", &div6_clks[DIV6_I]), CLKDEV_CON_ID("spu_clk", &div6_clks[DIV6_S]), @@ -356,10 +369,7 @@ int __init arch_clk_init(void) ret = sh_clk_div4_register(div4_clks, DIV4_NR, &div4_table); if (!ret) - ret = sh_clk_div6_register(div6_clks, DIV6_NR); - - if (!ret) - ret = sh_clk_div6_reparent_register(div6_reparent_clks, DIV6_REPARENT_NR); + ret = sh_clk_div6_reparent_register(div6_clks, DIV6_NR); if (!ret) ret = sh_hwblk_clk_register(mstp_clks, HWBLK_NR); diff --git a/arch/sparc/include/asm/pgtable_32.h b/arch/sparc/include/asm/pgtable_32.h index 5b31a8e89823..a790cc657476 100644 --- a/arch/sparc/include/asm/pgtable_32.h +++ b/arch/sparc/include/asm/pgtable_32.h @@ -431,10 +431,6 @@ extern unsigned long *sparc_valid_addr_bitmap; #define kern_addr_valid(addr) \ (test_bit(__pa((unsigned long)(addr))>>20, sparc_valid_addr_bitmap)) -extern int io_remap_pfn_range(struct vm_area_struct *vma, - unsigned long from, unsigned long pfn, - unsigned long size, pgprot_t prot); - /* * For sparc32&64, the pfn in io_remap_pfn_range() carries <iospace> in * its high 4 bits. These macros/functions put it there or get it from there. @@ -443,6 +439,22 @@ extern int io_remap_pfn_range(struct vm_area_struct *vma, #define GET_IOSPACE(pfn) (pfn >> (BITS_PER_LONG - 4)) #define GET_PFN(pfn) (pfn & 0x0fffffffUL) +extern int remap_pfn_range(struct vm_area_struct *, unsigned long, unsigned long, + unsigned long, pgprot_t); + +static inline int io_remap_pfn_range(struct vm_area_struct *vma, + unsigned long from, unsigned long pfn, + unsigned long size, pgprot_t prot) +{ + unsigned long long offset, space, phys_base; + + offset = ((unsigned long long) GET_PFN(pfn)) << PAGE_SHIFT; + space = GET_IOSPACE(pfn); + phys_base = offset | (space << 32ULL); + + return remap_pfn_range(vma, from, phys_base >> PAGE_SHIFT, size, prot); +} + #define __HAVE_ARCH_PTEP_SET_ACCESS_FLAGS #define ptep_set_access_flags(__vma, __address, __ptep, __entry, __dirty) \ ({ \ diff --git a/arch/sparc/include/asm/pgtable_64.h b/arch/sparc/include/asm/pgtable_64.h index adf89329af59..38ebb2c60137 100644 --- a/arch/sparc/include/asm/pgtable_64.h +++ b/arch/sparc/include/asm/pgtable_64.h @@ -757,10 +757,6 @@ static inline bool kern_addr_valid(unsigned long addr) extern int page_in_phys_avail(unsigned long paddr); -extern int io_remap_pfn_range(struct vm_area_struct *vma, unsigned long from, - unsigned long pfn, - unsigned long size, pgprot_t prot); - /* * For sparc32&64, the pfn in io_remap_pfn_range() carries <iospace> in * its high 4 bits. These macros/functions put it there or get it from there. @@ -769,6 +765,22 @@ extern int io_remap_pfn_range(struct vm_area_struct *vma, unsigned long from, #define GET_IOSPACE(pfn) (pfn >> (BITS_PER_LONG - 4)) #define GET_PFN(pfn) (pfn & 0x0fffffffffffffffUL) +extern int remap_pfn_range(struct vm_area_struct *, unsigned long, unsigned long, + unsigned long, pgprot_t); + +static inline int io_remap_pfn_range(struct vm_area_struct *vma, + unsigned long from, unsigned long pfn, + unsigned long size, pgprot_t prot) +{ + unsigned long offset = GET_PFN(pfn) << PAGE_SHIFT; + int space = GET_IOSPACE(pfn); + unsigned long phys_base; + + phys_base = offset | (((unsigned long) space) << 32UL); + + return remap_pfn_range(vma, from, phys_base >> PAGE_SHIFT, size, prot); +} + #include <asm-generic/pgtable.h> /* We provide our own get_unmapped_area to cope with VA holes and diff --git a/arch/sparc/kernel/entry.h b/arch/sparc/kernel/entry.h index e27f8ea8656e..0c218e4c0881 100644 --- a/arch/sparc/kernel/entry.h +++ b/arch/sparc/kernel/entry.h @@ -42,6 +42,9 @@ extern void fpsave(unsigned long *fpregs, unsigned long *fsr, extern void fpload(unsigned long *fpregs, unsigned long *fsr); #else /* CONFIG_SPARC32 */ + +#include <asm/trap_block.h> + struct popc_3insn_patch_entry { unsigned int addr; unsigned int insns[3]; @@ -57,6 +60,10 @@ extern struct popc_6insn_patch_entry __popc_6insn_patch, __popc_6insn_patch_end; extern void __init per_cpu_patch(void); +extern void sun4v_patch_1insn_range(struct sun4v_1insn_patch_entry *, + struct sun4v_1insn_patch_entry *); +extern void sun4v_patch_2insn_range(struct sun4v_2insn_patch_entry *, + struct sun4v_2insn_patch_entry *); extern void __init sun4v_patch(void); extern void __init boot_cpu_id_too_large(int cpu); extern unsigned int dcache_parity_tl1_occurred; diff --git a/arch/sparc/kernel/module.c b/arch/sparc/kernel/module.c index da0c6c70ccb2..e5519870c3d9 100644 --- a/arch/sparc/kernel/module.c +++ b/arch/sparc/kernel/module.c @@ -17,6 +17,8 @@ #include <asm/processor.h> #include <asm/spitfire.h> +#include "entry.h" + #ifdef CONFIG_SPARC64 #include <linux/jump_label.h> @@ -203,6 +205,29 @@ int apply_relocate_add(Elf_Shdr *sechdrs, } #ifdef CONFIG_SPARC64 +static void do_patch_sections(const Elf_Ehdr *hdr, + const Elf_Shdr *sechdrs) +{ + const Elf_Shdr *s, *sun4v_1insn = NULL, *sun4v_2insn = NULL; + char *secstrings = (void *)hdr + sechdrs[hdr->e_shstrndx].sh_offset; + + for (s = sechdrs; s < sechdrs + hdr->e_shnum; s++) { + if (!strcmp(".sun4v_1insn_patch", secstrings + s->sh_name)) + sun4v_1insn = s; + if (!strcmp(".sun4v_2insn_patch", secstrings + s->sh_name)) + sun4v_2insn = s; + } + + if (sun4v_1insn && tlb_type == hypervisor) { + void *p = (void *) sun4v_1insn->sh_addr; + sun4v_patch_1insn_range(p, p + sun4v_1insn->sh_size); + } + if (sun4v_2insn && tlb_type == hypervisor) { + void *p = (void *) sun4v_2insn->sh_addr; + sun4v_patch_2insn_range(p, p + sun4v_2insn->sh_size); + } +} + int module_finalize(const Elf_Ehdr *hdr, const Elf_Shdr *sechdrs, struct module *me) @@ -210,6 +235,8 @@ int module_finalize(const Elf_Ehdr *hdr, /* make jump label nops */ jump_label_apply_nops(me); + do_patch_sections(hdr, sechdrs); + /* Cheetah's I-cache is fully coherent. */ if (tlb_type == spitfire) { unsigned long va; diff --git a/arch/sparc/kernel/setup_64.c b/arch/sparc/kernel/setup_64.c index c965595aa7e9..a854a1c240ff 100644 --- a/arch/sparc/kernel/setup_64.c +++ b/arch/sparc/kernel/setup_64.c @@ -234,40 +234,50 @@ void __init per_cpu_patch(void) } } -void __init sun4v_patch(void) +void sun4v_patch_1insn_range(struct sun4v_1insn_patch_entry *start, + struct sun4v_1insn_patch_entry *end) { - extern void sun4v_hvapi_init(void); - struct sun4v_1insn_patch_entry *p1; - struct sun4v_2insn_patch_entry *p2; - - if (tlb_type != hypervisor) - return; + while (start < end) { + unsigned long addr = start->addr; - p1 = &__sun4v_1insn_patch; - while (p1 < &__sun4v_1insn_patch_end) { - unsigned long addr = p1->addr; - - *(unsigned int *) (addr + 0) = p1->insn; + *(unsigned int *) (addr + 0) = start->insn; wmb(); __asm__ __volatile__("flush %0" : : "r" (addr + 0)); - p1++; + start++; } +} - p2 = &__sun4v_2insn_patch; - while (p2 < &__sun4v_2insn_patch_end) { - unsigned long addr = p2->addr; +void sun4v_patch_2insn_range(struct sun4v_2insn_patch_entry *start, + struct sun4v_2insn_patch_entry *end) +{ + while (start < end) { + unsigned long addr = start->addr; - *(unsigned int *) (addr + 0) = p2->insns[0]; + *(unsigned int *) (addr + 0) = start->insns[0]; wmb(); __asm__ __volatile__("flush %0" : : "r" (addr + 0)); - *(unsigned int *) (addr + 4) = p2->insns[1]; + *(unsigned int *) (addr + 4) = start->insns[1]; wmb(); __asm__ __volatile__("flush %0" : : "r" (addr + 4)); - p2++; + start++; } +} + +void __init sun4v_patch(void) +{ + extern void sun4v_hvapi_init(void); + + if (tlb_type != hypervisor) + return; + + sun4v_patch_1insn_range(&__sun4v_1insn_patch, + &__sun4v_1insn_patch_end); + + sun4v_patch_2insn_range(&__sun4v_2insn_patch, + &__sun4v_2insn_patch_end); sun4v_hvapi_init(); } diff --git a/arch/sparc/kernel/signal32.c b/arch/sparc/kernel/signal32.c index 2caa556db86d..023b8860dc97 100644 --- a/arch/sparc/kernel/signal32.c +++ b/arch/sparc/kernel/signal32.c @@ -822,21 +822,23 @@ static inline void syscall_restart32(unsigned long orig_i0, struct pt_regs *regs * want to handle. Thus you cannot kill init even with a SIGKILL even by * mistake. */ -void do_signal32(sigset_t *oldset, struct pt_regs * regs, - int restart_syscall, unsigned long orig_i0) +void do_signal32(sigset_t *oldset, struct pt_regs * regs) { struct k_sigaction ka; + unsigned long orig_i0; + int restart_syscall; siginfo_t info; int signr; signr = get_signal_to_deliver(&info, &ka, regs, NULL); - /* If the debugger messes with the program counter, it clears - * the "in syscall" bit, directing us to not perform a syscall - * restart. - */ - if (restart_syscall && !pt_regs_is_syscall(regs)) - restart_syscall = 0; + restart_syscall = 0; + orig_i0 = 0; + if (pt_regs_is_syscall(regs) && + (regs->tstate & (TSTATE_XCARRY | TSTATE_ICARRY))) { + restart_syscall = 1; + orig_i0 = regs->u_regs[UREG_G6]; + } if (signr > 0) { if (restart_syscall) diff --git a/arch/sparc/kernel/signal_32.c b/arch/sparc/kernel/signal_32.c index 8ce247ac04cc..d54c6e53aba0 100644 --- a/arch/sparc/kernel/signal_32.c +++ b/arch/sparc/kernel/signal_32.c @@ -519,10 +519,26 @@ static void do_signal(struct pt_regs *regs, unsigned long orig_i0) siginfo_t info; int signr; + /* It's a lot of work and synchronization to add a new ptrace + * register for GDB to save and restore in order to get + * orig_i0 correct for syscall restarts when debugging. + * + * Although it should be the case that most of the global + * registers are volatile across a system call, glibc already + * depends upon that fact that we preserve them. So we can't + * just use any global register to save away the orig_i0 value. + * + * In particular %g2, %g3, %g4, and %g5 are all assumed to be + * preserved across a system call trap by various pieces of + * code in glibc. + * + * %g7 is used as the "thread register". %g6 is not used in + * any fixed manner. %g6 is used as a scratch register and + * a compiler temporary, but it's value is never used across + * a system call. Therefore %g6 is usable for orig_i0 storage. + */ if (pt_regs_is_syscall(regs) && (regs->psr & PSR_C)) - restart_syscall = 1; - else - restart_syscall = 0; + regs->u_regs[UREG_G6] = orig_i0; if (test_thread_flag(TIF_RESTORE_SIGMASK)) oldset = ¤t->saved_sigmask; @@ -535,8 +551,12 @@ static void do_signal(struct pt_regs *regs, unsigned long orig_i0) * the software "in syscall" bit, directing us to not perform * a syscall restart. */ - if (restart_syscall && !pt_regs_is_syscall(regs)) - restart_syscall = 0; + restart_syscall = 0; + if (pt_regs_is_syscall(regs) && (regs->psr & PSR_C)) { + restart_syscall = 1; + orig_i0 = regs->u_regs[UREG_G6]; + } + if (signr > 0) { if (restart_syscall) diff --git a/arch/sparc/kernel/signal_64.c b/arch/sparc/kernel/signal_64.c index a2b81598d905..f0836cd0e2f2 100644 --- a/arch/sparc/kernel/signal_64.c +++ b/arch/sparc/kernel/signal_64.c @@ -529,11 +529,27 @@ static void do_signal(struct pt_regs *regs, unsigned long orig_i0) siginfo_t info; int signr; + /* It's a lot of work and synchronization to add a new ptrace + * register for GDB to save and restore in order to get + * orig_i0 correct for syscall restarts when debugging. + * + * Although it should be the case that most of the global + * registers are volatile across a system call, glibc already + * depends upon that fact that we preserve them. So we can't + * just use any global register to save away the orig_i0 value. + * + * In particular %g2, %g3, %g4, and %g5 are all assumed to be + * preserved across a system call trap by various pieces of + * code in glibc. + * + * %g7 is used as the "thread register". %g6 is not used in + * any fixed manner. %g6 is used as a scratch register and + * a compiler temporary, but it's value is never used across + * a system call. Therefore %g6 is usable for orig_i0 storage. + */ if (pt_regs_is_syscall(regs) && - (regs->tstate & (TSTATE_XCARRY | TSTATE_ICARRY))) { - restart_syscall = 1; - } else - restart_syscall = 0; + (regs->tstate & (TSTATE_XCARRY | TSTATE_ICARRY))) + regs->u_regs[UREG_G6] = orig_i0; if (current_thread_info()->status & TS_RESTORE_SIGMASK) oldset = ¤t->saved_sigmask; @@ -542,22 +558,20 @@ static void do_signal(struct pt_regs *regs, unsigned long orig_i0) #ifdef CONFIG_COMPAT if (test_thread_flag(TIF_32BIT)) { - extern void do_signal32(sigset_t *, struct pt_regs *, - int restart_syscall, - unsigned long orig_i0); - do_signal32(oldset, regs, restart_syscall, orig_i0); + extern void do_signal32(sigset_t *, struct pt_regs *); + do_signal32(oldset, regs); return; } #endif signr = get_signal_to_deliver(&info, &ka, regs, NULL); - /* If the debugger messes with the program counter, it clears - * the software "in syscall" bit, directing us to not perform - * a syscall restart. - */ - if (restart_syscall && !pt_regs_is_syscall(regs)) - restart_syscall = 0; + restart_syscall = 0; + if (pt_regs_is_syscall(regs) && + (regs->tstate & (TSTATE_XCARRY | TSTATE_ICARRY))) { + restart_syscall = 1; + orig_i0 = regs->u_regs[UREG_G6]; + } if (signr > 0) { if (restart_syscall) diff --git a/arch/sparc/kernel/sigutil_64.c b/arch/sparc/kernel/sigutil_64.c index e7dc508c38eb..b19570d41a39 100644 --- a/arch/sparc/kernel/sigutil_64.c +++ b/arch/sparc/kernel/sigutil_64.c @@ -2,6 +2,7 @@ #include <linux/types.h> #include <linux/thread_info.h> #include <linux/uaccess.h> +#include <linux/errno.h> #include <asm/sigcontext.h> #include <asm/fpumacro.h> diff --git a/arch/sparc/mm/Makefile b/arch/sparc/mm/Makefile index e3cda21b5ee9..301421c11291 100644 --- a/arch/sparc/mm/Makefile +++ b/arch/sparc/mm/Makefile @@ -8,7 +8,6 @@ obj-$(CONFIG_SPARC64) += ultra.o tlb.o tsb.o gup.o obj-y += fault_$(BITS).o obj-y += init_$(BITS).o obj-$(CONFIG_SPARC32) += loadmmu.o -obj-y += generic_$(BITS).o obj-$(CONFIG_SPARC32) += extable.o btfixup.o srmmu.o iommu.o io-unit.o obj-$(CONFIG_SPARC32) += hypersparc.o viking.o tsunami.o swift.o obj-$(CONFIG_SPARC_LEON)+= leon_mm.o diff --git a/arch/sparc/mm/generic_32.c b/arch/sparc/mm/generic_32.c deleted file mode 100644 index 6ca39a60a196..000000000000 --- a/arch/sparc/mm/generic_32.c +++ /dev/null @@ -1,99 +0,0 @@ -/* - * generic.c: Generic Sparc mm routines that are not dependent upon - * MMU type but are Sparc specific. - * - * Copyright (C) 1996 David S. Miller (davem@caip.rutgers.edu) - */ - -#include <linux/kernel.h> -#include <linux/mm.h> -#include <linux/swap.h> -#include <linux/pagemap.h> -#include <linux/export.h> - -#include <asm/pgalloc.h> -#include <asm/pgtable.h> -#include <asm/page.h> -#include <asm/cacheflush.h> -#include <asm/tlbflush.h> - -/* Remap IO memory, the same way as remap_pfn_range(), but use - * the obio memory space. - * - * They use a pgprot that sets PAGE_IO and does not check the - * mem_map table as this is independent of normal memory. - */ -static inline void io_remap_pte_range(struct mm_struct *mm, pte_t * pte, unsigned long address, unsigned long size, - unsigned long offset, pgprot_t prot, int space) -{ - unsigned long end; - - address &= ~PMD_MASK; - end = address + size; - if (end > PMD_SIZE) - end = PMD_SIZE; - do { - set_pte_at(mm, address, pte, mk_pte_io(offset, prot, space)); - address += PAGE_SIZE; - offset += PAGE_SIZE; - pte++; - } while (address < end); -} - -static inline int io_remap_pmd_range(struct mm_struct *mm, pmd_t * pmd, unsigned long address, unsigned long size, - unsigned long offset, pgprot_t prot, int space) -{ - unsigned long end; - - address &= ~PGDIR_MASK; - end = address + size; - if (end > PGDIR_SIZE) - end = PGDIR_SIZE; - offset -= address; - do { - pte_t *pte = pte_alloc_map(mm, NULL, pmd, address); - if (!pte) - return -ENOMEM; - io_remap_pte_range(mm, pte, address, end - address, address + offset, prot, space); - address = (address + PMD_SIZE) & PMD_MASK; - pmd++; - } while (address < end); - return 0; -} - -int io_remap_pfn_range(struct vm_area_struct *vma, unsigned long from, - unsigned long pfn, unsigned long size, pgprot_t prot) -{ - int error = 0; - pgd_t * dir; - unsigned long beg = from; - unsigned long end = from + size; - struct mm_struct *mm = vma->vm_mm; - int space = GET_IOSPACE(pfn); - unsigned long offset = GET_PFN(pfn) << PAGE_SHIFT; - - /* See comment in mm/memory.c remap_pfn_range */ - vma->vm_flags |= VM_IO | VM_RESERVED | VM_PFNMAP; - vma->vm_pgoff = (offset >> PAGE_SHIFT) | - ((unsigned long)space << 28UL); - - offset -= from; - dir = pgd_offset(mm, from); - flush_cache_range(vma, beg, end); - - while (from < end) { - pmd_t *pmd = pmd_alloc(mm, dir, from); - error = -ENOMEM; - if (!pmd) - break; - error = io_remap_pmd_range(mm, pmd, from, end - from, offset + from, prot, space); - if (error) - break; - from = (from + PGDIR_SIZE) & PGDIR_MASK; - dir++; - } - - flush_tlb_range(vma, beg, end); - return error; -} -EXPORT_SYMBOL(io_remap_pfn_range); diff --git a/arch/sparc/mm/generic_64.c b/arch/sparc/mm/generic_64.c deleted file mode 100644 index 9b357ddae39d..000000000000 --- a/arch/sparc/mm/generic_64.c +++ /dev/null @@ -1,165 +0,0 @@ -/* - * generic.c: Generic Sparc mm routines that are not dependent upon - * MMU type but are Sparc specific. - * - * Copyright (C) 1996 David S. Miller (davem@caip.rutgers.edu) - */ - -#include <linux/kernel.h> -#include <linux/mm.h> -#include <linux/swap.h> -#include <linux/export.h> -#include <linux/pagemap.h> - -#include <asm/pgalloc.h> -#include <asm/pgtable.h> -#include <asm/page.h> -#include <asm/tlbflush.h> - -/* Remap IO memory, the same way as remap_pfn_range(), but use - * the obio memory space. - * - * They use a pgprot that sets PAGE_IO and does not check the - * mem_map table as this is independent of normal memory. - */ -static inline void io_remap_pte_range(struct mm_struct *mm, pte_t * pte, - unsigned long address, - unsigned long size, - unsigned long offset, pgprot_t prot, - int space) -{ - unsigned long end; - - /* clear hack bit that was used as a write_combine side-effect flag */ - offset &= ~0x1UL; - address &= ~PMD_MASK; - end = address + size; - if (end > PMD_SIZE) - end = PMD_SIZE; - do { - pte_t entry; - unsigned long curend = address + PAGE_SIZE; - - entry = mk_pte_io(offset, prot, space, PAGE_SIZE); - if (!(address & 0xffff)) { - if (PAGE_SIZE < (4 * 1024 * 1024) && - !(address & 0x3fffff) && - !(offset & 0x3ffffe) && - end >= address + 0x400000) { - entry = mk_pte_io(offset, prot, space, - 4 * 1024 * 1024); - curend = address + 0x400000; - offset += 0x400000; - } else if (PAGE_SIZE < (512 * 1024) && - !(address & 0x7ffff) && - !(offset & 0x7fffe) && - end >= address + 0x80000) { - entry = mk_pte_io(offset, prot, space, - 512 * 1024 * 1024); - curend = address + 0x80000; - offset += 0x80000; - } else if (PAGE_SIZE < (64 * 1024) && - !(offset & 0xfffe) && - end >= address + 0x10000) { - entry = mk_pte_io(offset, prot, space, - 64 * 1024); - curend = address + 0x10000; - offset += 0x10000; - } else - offset += PAGE_SIZE; - } else - offset += PAGE_SIZE; - - if (pte_write(entry)) - entry = pte_mkdirty(entry); - do { - BUG_ON(!pte_none(*pte)); - set_pte_at(mm, address, pte, entry); - address += PAGE_SIZE; - pte_val(entry) += PAGE_SIZE; - pte++; - } while (address < curend); - } while (address < end); -} - -static inline int io_remap_pmd_range(struct mm_struct *mm, pmd_t * pmd, unsigned long address, unsigned long size, - unsigned long offset, pgprot_t prot, int space) -{ - unsigned long end; - - address &= ~PGDIR_MASK; - end = address + size; - if (end > PGDIR_SIZE) - end = PGDIR_SIZE; - offset -= address; - do { - pte_t *pte = pte_alloc_map(mm, NULL, pmd, address); - if (!pte) - return -ENOMEM; - io_remap_pte_range(mm, pte, address, end - address, address + offset, prot, space); - pte_unmap(pte); - address = (address + PMD_SIZE) & PMD_MASK; - pmd++; - } while (address < end); - return 0; -} - -static inline int io_remap_pud_range(struct mm_struct *mm, pud_t * pud, unsigned long address, unsigned long size, - unsigned long offset, pgprot_t prot, int space) -{ - unsigned long end; - - address &= ~PUD_MASK; - end = address + size; - if (end > PUD_SIZE) - end = PUD_SIZE; - offset -= address; - do { - pmd_t *pmd = pmd_alloc(mm, pud, address); - if (!pud) - return -ENOMEM; - io_remap_pmd_range(mm, pmd, address, end - address, address + offset, prot, space); - address = (address + PUD_SIZE) & PUD_MASK; - pud++; - } while (address < end); - return 0; -} - -int io_remap_pfn_range(struct vm_area_struct *vma, unsigned long from, - unsigned long pfn, unsigned long size, pgprot_t prot) -{ - int error = 0; - pgd_t * dir; - unsigned long beg = from; - unsigned long end = from + size; - struct mm_struct *mm = vma->vm_mm; - int space = GET_IOSPACE(pfn); - unsigned long offset = GET_PFN(pfn) << PAGE_SHIFT; - unsigned long phys_base; - - phys_base = offset | (((unsigned long) space) << 32UL); - - /* See comment in mm/memory.c remap_pfn_range */ - vma->vm_flags |= VM_IO | VM_RESERVED | VM_PFNMAP; - vma->vm_pgoff = phys_base >> PAGE_SHIFT; - - offset -= from; - dir = pgd_offset(mm, from); - flush_cache_range(vma, beg, end); - - while (from < end) { - pud_t *pud = pud_alloc(mm, dir, from); - error = -ENOMEM; - if (!pud) - break; - error = io_remap_pud_range(mm, pud, from, end - from, offset + from, prot, space); - if (error) - break; - from = (from + PGDIR_SIZE) & PGDIR_MASK; - dir++; - } - - flush_tlb_range(vma, beg, end); - return error; -} -EXPORT_SYMBOL(io_remap_pfn_range); diff --git a/arch/unicore32/Kconfig b/arch/unicore32/Kconfig index e57dcce9bfda..942ed6174f1d 100644 --- a/arch/unicore32/Kconfig +++ b/arch/unicore32/Kconfig @@ -237,13 +237,13 @@ menu "PKUnity NetBook-0916 Features" config I2C_BATTERY_BQ27200 tristate "I2C Battery BQ27200 Support" - select PUV3_I2C + select I2C_PUV3 select POWER_SUPPLY select BATTERY_BQ27x00 config I2C_EEPROM_AT24 tristate "I2C EEPROMs AT24 support" - select PUV3_I2C + select I2C_PUV3 select MISC_DEVICES select EEPROM_AT24 diff --git a/arch/unicore32/Kconfig.debug b/arch/unicore32/Kconfig.debug index ae2ec334c3c6..1a3626239843 100644 --- a/arch/unicore32/Kconfig.debug +++ b/arch/unicore32/Kconfig.debug @@ -44,18 +44,4 @@ config DEBUG_OCD Say Y here if you want the debug print routines to direct their output to the UniCore On-Chip-Debugger channel using CP #1. -config DEBUG_OCD_BREAKPOINT - bool "Breakpoint support via On-Chip-Debugger" - depends on DEBUG_OCD - -config DEBUG_UART - int "Kernel low-level debugging messages via serial port" - depends on DEBUG_LL - range 0 1 - default "0" - help - Choice for UART for kernel low-level using PKUnity UARTS, - should be between zero and one. The port must have been - initialised by the boot-loader before use. - endmenu diff --git a/arch/unicore32/boot/compressed/Makefile b/arch/unicore32/boot/compressed/Makefile index b0954a2d23cf..950a9afa38f8 100644 --- a/arch/unicore32/boot/compressed/Makefile +++ b/arch/unicore32/boot/compressed/Makefile @@ -10,8 +10,8 @@ # Copyright (C) 2001~2010 GUAN Xue-tao # -EXTRA_CFLAGS := -fpic -fno-builtin -EXTRA_AFLAGS := -Wa,-march=all +ccflags-y := -fpic -fno-builtin +asflags-y := -Wa,-march=all OBJS := misc.o diff --git a/arch/unicore32/include/asm/bitops.h b/arch/unicore32/include/asm/bitops.h index 1628a6328994..401f597bc38c 100644 --- a/arch/unicore32/include/asm/bitops.h +++ b/arch/unicore32/include/asm/bitops.h @@ -13,12 +13,6 @@ #ifndef __UNICORE_BITOPS_H__ #define __UNICORE_BITOPS_H__ -#define find_next_bit __uc32_find_next_bit -#define find_next_zero_bit __uc32_find_next_zero_bit - -#define find_first_bit __uc32_find_first_bit -#define find_first_zero_bit __uc32_find_first_zero_bit - #define _ASM_GENERIC_BITOPS_FLS_H_ #define _ASM_GENERIC_BITOPS___FLS_H_ #define _ASM_GENERIC_BITOPS_FFS_H_ @@ -44,4 +38,10 @@ static inline int fls(int x) #include <asm-generic/bitops.h> +/* following definitions: to avoid using codes in lib/find_*.c */ +#define find_next_bit find_next_bit +#define find_next_zero_bit find_next_zero_bit +#define find_first_bit find_first_bit +#define find_first_zero_bit find_first_zero_bit + #endif /* __UNICORE_BITOPS_H__ */ diff --git a/arch/unicore32/include/asm/processor.h b/arch/unicore32/include/asm/processor.h index e11cb0786578..f0d780a51f9b 100644 --- a/arch/unicore32/include/asm/processor.h +++ b/arch/unicore32/include/asm/processor.h @@ -53,7 +53,6 @@ struct thread_struct { #define start_thread(regs, pc, sp) \ ({ \ unsigned long *stack = (unsigned long *)sp; \ - set_fs(USER_DS); \ memset(regs->uregs, 0, sizeof(regs->uregs)); \ regs->UCreg_asr = USER_MODE; \ regs->UCreg_pc = pc & ~1; /* pc */ \ diff --git a/arch/unicore32/kernel/ksyms.c b/arch/unicore32/kernel/ksyms.c index a8970809428a..d98bd812cae1 100644 --- a/arch/unicore32/kernel/ksyms.c +++ b/arch/unicore32/kernel/ksyms.c @@ -24,8 +24,8 @@ #include "ksyms.h" -EXPORT_SYMBOL(__uc32_find_next_zero_bit); -EXPORT_SYMBOL(__uc32_find_next_bit); +EXPORT_SYMBOL(find_next_zero_bit); +EXPORT_SYMBOL(find_next_bit); EXPORT_SYMBOL(__backtrace); diff --git a/arch/unicore32/lib/findbit.S b/arch/unicore32/lib/findbit.S index c360ce905d8b..c77746247d36 100644 --- a/arch/unicore32/lib/findbit.S +++ b/arch/unicore32/lib/findbit.S @@ -17,7 +17,7 @@ * Purpose : Find a 'zero' bit * Prototype: int find_first_zero_bit(void *addr, unsigned int maxbit); */ -__uc32_find_first_zero_bit: +ENTRY(find_first_zero_bit) cxor.a r1, #0 beq 3f mov r2, #0 @@ -29,13 +29,14 @@ __uc32_find_first_zero_bit: bub 1b 3: mov r0, r1 @ no free bits mov pc, lr +ENDPROC(find_first_zero_bit) /* * Purpose : Find next 'zero' bit * Prototype: int find_next_zero_bit * (void *addr, unsigned int maxbit, int offset) */ -ENTRY(__uc32_find_next_zero_bit) +ENTRY(find_next_zero_bit) cxor.a r1, #0 beq 3b and.a ip, r2, #7 @@ -47,14 +48,14 @@ ENTRY(__uc32_find_next_zero_bit) or r2, r2, #7 @ if zero, then no bits here add r2, r2, #1 @ align bit pointer b 2b @ loop for next bit -ENDPROC(__uc32_find_next_zero_bit) +ENDPROC(find_next_zero_bit) /* * Purpose : Find a 'one' bit * Prototype: int find_first_bit * (const unsigned long *addr, unsigned int maxbit); */ -__uc32_find_first_bit: +ENTRY(find_first_bit) cxor.a r1, #0 beq 3f mov r2, #0 @@ -66,13 +67,14 @@ __uc32_find_first_bit: bub 1b 3: mov r0, r1 @ no free bits mov pc, lr +ENDPROC(find_first_bit) /* * Purpose : Find next 'one' bit * Prototype: int find_next_zero_bit * (void *addr, unsigned int maxbit, int offset) */ -ENTRY(__uc32_find_next_bit) +ENTRY(find_next_bit) cxor.a r1, #0 beq 3b and.a ip, r2, #7 @@ -83,7 +85,7 @@ ENTRY(__uc32_find_next_bit) or r2, r2, #7 @ if zero, then no bits here add r2, r2, #1 @ align bit pointer b 2b @ loop for next bit -ENDPROC(__uc32_find_next_bit) +ENDPROC(find_next_bit) /* * One or more bits in the LSB of r3 are assumed to be set. diff --git a/arch/x86/include/asm/apic.h b/arch/x86/include/asm/apic.h index 9b7273cb2193..1a6c09af048f 100644 --- a/arch/x86/include/asm/apic.h +++ b/arch/x86/include/asm/apic.h @@ -49,6 +49,7 @@ extern unsigned int apic_verbosity; extern int local_apic_timer_c2_ok; extern int disable_apic; +extern unsigned int lapic_timer_frequency; #ifdef CONFIG_SMP extern void __inquire_remote_apic(int apicid); diff --git a/arch/x86/include/asm/mach_traps.h b/arch/x86/include/asm/mach_traps.h index 72a8b52e7dfd..a01e7ec7d237 100644 --- a/arch/x86/include/asm/mach_traps.h +++ b/arch/x86/include/asm/mach_traps.h @@ -17,7 +17,7 @@ #define NMI_REASON_CLEAR_IOCHK 0x08 #define NMI_REASON_CLEAR_MASK 0x0f -static inline unsigned char get_nmi_reason(void) +static inline unsigned char default_get_nmi_reason(void) { return inb(NMI_REASON_PORT); } diff --git a/arch/x86/include/asm/mce.h b/arch/x86/include/asm/mce.h index c9321f34e55b..0e8ae57d3656 100644 --- a/arch/x86/include/asm/mce.h +++ b/arch/x86/include/asm/mce.h @@ -201,7 +201,10 @@ int mce_notify_irq(void); void mce_notify_process(void); DECLARE_PER_CPU(struct mce, injectm); -extern struct file_operations mce_chrdev_ops; + +extern void register_mce_write_callback(ssize_t (*)(struct file *filp, + const char __user *ubuf, + size_t usize, loff_t *off)); /* * Exception handler diff --git a/arch/x86/include/asm/mrst.h b/arch/x86/include/asm/mrst.h index 719f00b28ff5..e6283129c821 100644 --- a/arch/x86/include/asm/mrst.h +++ b/arch/x86/include/asm/mrst.h @@ -44,6 +44,13 @@ enum mrst_timer_options { extern enum mrst_timer_options mrst_timer_options; +/* + * Penwell uses spread spectrum clock, so the freq number is not exactly + * the same as reported by MSR based on SDM. + */ +#define PENWELL_FSB_FREQ_83SKU 83200 +#define PENWELL_FSB_FREQ_100SKU 99840 + #define SFI_MTMR_MAX_NUM 8 #define SFI_MRTC_MAX 8 diff --git a/arch/x86/include/asm/x86_init.h b/arch/x86/include/asm/x86_init.h index d3d859035af9..1971e652d24b 100644 --- a/arch/x86/include/asm/x86_init.h +++ b/arch/x86/include/asm/x86_init.h @@ -152,6 +152,7 @@ struct x86_cpuinit_ops { /** * struct x86_platform_ops - platform specific runtime functions * @calibrate_tsc: calibrate TSC + * @wallclock_init: init the wallclock device * @get_wallclock: get time from HW clock like RTC etc. * @set_wallclock: set time back to HW clock * @is_untracked_pat_range exclude from PAT logic @@ -160,11 +161,13 @@ struct x86_cpuinit_ops { */ struct x86_platform_ops { unsigned long (*calibrate_tsc)(void); + void (*wallclock_init)(void); unsigned long (*get_wallclock)(void); int (*set_wallclock)(unsigned long nowtime); void (*iommu_shutdown)(void); bool (*is_untracked_pat_range)(u64 start, u64 end); void (*nmi_init)(void); + unsigned char (*get_nmi_reason)(void); int (*i8042_detect)(void); }; diff --git a/arch/x86/kernel/alternative.c b/arch/x86/kernel/alternative.c index c63822816249..1f84794f0759 100644 --- a/arch/x86/kernel/alternative.c +++ b/arch/x86/kernel/alternative.c @@ -738,5 +738,5 @@ void __kprobes text_poke_smp_batch(struct text_poke_param *params, int n) atomic_set(&stop_machine_first, 1); wrote_text = 0; - __stop_machine(stop_machine_text_poke, (void *)&tpp, NULL); + __stop_machine(stop_machine_text_poke, (void *)&tpp, cpu_online_mask); } diff --git a/arch/x86/kernel/apic/apic.c b/arch/x86/kernel/apic/apic.c index a2fd72e0ab35..f98d84caf94c 100644 --- a/arch/x86/kernel/apic/apic.c +++ b/arch/x86/kernel/apic/apic.c @@ -186,7 +186,7 @@ static struct resource lapic_resource = { .flags = IORESOURCE_MEM | IORESOURCE_BUSY, }; -static unsigned int calibration_result; +unsigned int lapic_timer_frequency = 0; static void apic_pm_activate(void); @@ -454,7 +454,7 @@ static void lapic_timer_setup(enum clock_event_mode mode, switch (mode) { case CLOCK_EVT_MODE_PERIODIC: case CLOCK_EVT_MODE_ONESHOT: - __setup_APIC_LVTT(calibration_result, + __setup_APIC_LVTT(lapic_timer_frequency, mode != CLOCK_EVT_MODE_PERIODIC, 1); break; case CLOCK_EVT_MODE_UNUSED: @@ -638,6 +638,25 @@ static int __init calibrate_APIC_clock(void) long delta, deltatsc; int pm_referenced = 0; + /** + * check if lapic timer has already been calibrated by platform + * specific routine, such as tsc calibration code. if so, we just fill + * in the clockevent structure and return. + */ + + if (lapic_timer_frequency) { + apic_printk(APIC_VERBOSE, "lapic timer already calibrated %d\n", + lapic_timer_frequency); + lapic_clockevent.mult = div_sc(lapic_timer_frequency/APIC_DIVISOR, + TICK_NSEC, lapic_clockevent.shift); + lapic_clockevent.max_delta_ns = + clockevent_delta2ns(0x7FFFFF, &lapic_clockevent); + lapic_clockevent.min_delta_ns = + clockevent_delta2ns(0xF, &lapic_clockevent); + lapic_clockevent.features &= ~CLOCK_EVT_FEAT_DUMMY; + return 0; + } + local_irq_disable(); /* Replace the global interrupt handler */ @@ -679,12 +698,12 @@ static int __init calibrate_APIC_clock(void) lapic_clockevent.min_delta_ns = clockevent_delta2ns(0xF, &lapic_clockevent); - calibration_result = (delta * APIC_DIVISOR) / LAPIC_CAL_LOOPS; + lapic_timer_frequency = (delta * APIC_DIVISOR) / LAPIC_CAL_LOOPS; apic_printk(APIC_VERBOSE, "..... delta %ld\n", delta); apic_printk(APIC_VERBOSE, "..... mult: %u\n", lapic_clockevent.mult); apic_printk(APIC_VERBOSE, "..... calibration result: %u\n", - calibration_result); + lapic_timer_frequency); if (cpu_has_tsc) { apic_printk(APIC_VERBOSE, "..... CPU clock speed is " @@ -695,13 +714,13 @@ static int __init calibrate_APIC_clock(void) apic_printk(APIC_VERBOSE, "..... host bus clock speed is " "%u.%04u MHz.\n", - calibration_result / (1000000 / HZ), - calibration_result % (1000000 / HZ)); + lapic_timer_frequency / (1000000 / HZ), + lapic_timer_frequency % (1000000 / HZ)); /* * Do a sanity check on the APIC calibration result */ - if (calibration_result < (1000000 / HZ)) { + if (lapic_timer_frequency < (1000000 / HZ)) { local_irq_enable(); pr_warning("APIC frequency too slow, disabling apic timer\n"); return -1; diff --git a/arch/x86/kernel/apic/io_apic.c b/arch/x86/kernel/apic/io_apic.c index 3c31fa98af6d..6d939d7847e2 100644 --- a/arch/x86/kernel/apic/io_apic.c +++ b/arch/x86/kernel/apic/io_apic.c @@ -193,10 +193,8 @@ int __init arch_early_irq_init(void) struct irq_cfg *cfg; int count, node, i; - if (!legacy_pic->nr_legacy_irqs) { - nr_irqs_gsi = 0; + if (!legacy_pic->nr_legacy_irqs) io_apic_irqs = ~0UL; - } for (i = 0; i < nr_ioapics; i++) { ioapics[i].saved_registers = @@ -1696,6 +1694,7 @@ __apicdebuginit(void) print_IO_APICs(void) int ioapic_idx; struct irq_cfg *cfg; unsigned int irq; + struct irq_chip *chip; printk(KERN_DEBUG "number of MP IRQ sources: %d.\n", mp_irq_entries); for (ioapic_idx = 0; ioapic_idx < nr_ioapics; ioapic_idx++) @@ -1716,6 +1715,10 @@ __apicdebuginit(void) print_IO_APICs(void) for_each_active_irq(irq) { struct irq_pin_list *entry; + chip = irq_get_chip(irq); + if (chip != &ioapic_chip) + continue; + cfg = irq_get_chip_data(irq); if (!cfg) continue; diff --git a/arch/x86/kernel/cpu/mcheck/mce-inject.c b/arch/x86/kernel/cpu/mcheck/mce-inject.c index 6199232161cf..319882ef848d 100644 --- a/arch/x86/kernel/cpu/mcheck/mce-inject.c +++ b/arch/x86/kernel/cpu/mcheck/mce-inject.c @@ -208,7 +208,7 @@ static int inject_init(void) if (!alloc_cpumask_var(&mce_inject_cpumask, GFP_KERNEL)) return -ENOMEM; printk(KERN_INFO "Machine check injector initialized\n"); - mce_chrdev_ops.write = mce_write; + register_mce_write_callback(mce_write); register_nmi_handler(NMI_LOCAL, mce_raise_notify, 0, "mce_notify"); return 0; diff --git a/arch/x86/kernel/cpu/mcheck/mce.c b/arch/x86/kernel/cpu/mcheck/mce.c index 362056aefeb4..2af127d4c3d1 100644 --- a/arch/x86/kernel/cpu/mcheck/mce.c +++ b/arch/x86/kernel/cpu/mcheck/mce.c @@ -1634,16 +1634,35 @@ static long mce_chrdev_ioctl(struct file *f, unsigned int cmd, } } -/* Modified in mce-inject.c, so not static or const */ -struct file_operations mce_chrdev_ops = { +static ssize_t (*mce_write)(struct file *filp, const char __user *ubuf, + size_t usize, loff_t *off); + +void register_mce_write_callback(ssize_t (*fn)(struct file *filp, + const char __user *ubuf, + size_t usize, loff_t *off)) +{ + mce_write = fn; +} +EXPORT_SYMBOL_GPL(register_mce_write_callback); + +ssize_t mce_chrdev_write(struct file *filp, const char __user *ubuf, + size_t usize, loff_t *off) +{ + if (mce_write) + return mce_write(filp, ubuf, usize, off); + else + return -EINVAL; +} + +static const struct file_operations mce_chrdev_ops = { .open = mce_chrdev_open, .release = mce_chrdev_release, .read = mce_chrdev_read, + .write = mce_chrdev_write, .poll = mce_chrdev_poll, .unlocked_ioctl = mce_chrdev_ioctl, .llseek = no_llseek, }; -EXPORT_SYMBOL_GPL(mce_chrdev_ops); static struct miscdevice mce_chrdev_device = { MISC_MCELOG_MINOR, diff --git a/arch/x86/kernel/kvmclock.c b/arch/x86/kernel/kvmclock.c index c1a0188e29ae..44842d756b29 100644 --- a/arch/x86/kernel/kvmclock.c +++ b/arch/x86/kernel/kvmclock.c @@ -74,9 +74,10 @@ static cycle_t kvm_clock_read(void) struct pvclock_vcpu_time_info *src; cycle_t ret; - src = &get_cpu_var(hv_clock); + preempt_disable_notrace(); + src = &__get_cpu_var(hv_clock); ret = pvclock_clocksource_read(src); - put_cpu_var(hv_clock); + preempt_enable_notrace(); return ret; } diff --git a/arch/x86/kernel/nmi.c b/arch/x86/kernel/nmi.c index b9c8628974af..e88f37b58ddd 100644 --- a/arch/x86/kernel/nmi.c +++ b/arch/x86/kernel/nmi.c @@ -29,6 +29,7 @@ #include <asm/traps.h> #include <asm/mach_traps.h> #include <asm/nmi.h> +#include <asm/x86_init.h> #define NMI_MAX_NAMELEN 16 struct nmiaction { @@ -348,7 +349,7 @@ static notrace __kprobes void default_do_nmi(struct pt_regs *regs) /* Non-CPU-specific NMI: NMI sources can be processed on any CPU */ raw_spin_lock(&nmi_reason_lock); - reason = get_nmi_reason(); + reason = x86_platform.get_nmi_reason(); if (reason & NMI_REASON_MASK) { if (reason & NMI_REASON_SERR) diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c index afaf38447ef5..cf0ef986cb6d 100644 --- a/arch/x86/kernel/setup.c +++ b/arch/x86/kernel/setup.c @@ -1045,6 +1045,8 @@ void __init setup_arch(char **cmdline_p) x86_init.timers.wallclock_init(); + x86_platform.wallclock_init(); + mcheck_init(); arch_init_ideal_nops(); diff --git a/arch/x86/kernel/x86_init.c b/arch/x86/kernel/x86_init.c index 6f164bd5e14d..c1d6cd549397 100644 --- a/arch/x86/kernel/x86_init.c +++ b/arch/x86/kernel/x86_init.c @@ -21,12 +21,14 @@ #include <asm/pat.h> #include <asm/tsc.h> #include <asm/iommu.h> +#include <asm/mach_traps.h> void __cpuinit x86_init_noop(void) { } void __init x86_init_uint_noop(unsigned int unused) { } void __init x86_init_pgd_noop(pgd_t *unused) { } int __init iommu_init_noop(void) { return 0; } void iommu_shutdown_noop(void) { } +void wallclock_init_noop(void) { } /* * The platform setup functions are preset with the default functions @@ -97,11 +99,13 @@ static int default_i8042_detect(void) { return 1; }; struct x86_platform_ops x86_platform = { .calibrate_tsc = native_calibrate_tsc, + .wallclock_init = wallclock_init_noop, .get_wallclock = mach_get_cmos_time, .set_wallclock = mach_set_rtc_mmss, .iommu_shutdown = iommu_shutdown_noop, .is_untracked_pat_range = is_ISA_range, .nmi_init = default_nmi_init, + .get_nmi_reason = default_get_nmi_reason, .i8042_detect = default_i8042_detect }; diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c index a0d6bd9ad442..579a0b51696a 100644 --- a/arch/x86/kvm/vmx.c +++ b/arch/x86/kvm/vmx.c @@ -39,6 +39,7 @@ #include <asm/mce.h> #include <asm/i387.h> #include <asm/xcr.h> +#include <asm/perf_event.h> #include "trace.h" @@ -118,7 +119,7 @@ module_param(ple_gap, int, S_IRUGO); static int ple_window = KVM_VMX_DEFAULT_PLE_WINDOW; module_param(ple_window, int, S_IRUGO); -#define NR_AUTOLOAD_MSRS 1 +#define NR_AUTOLOAD_MSRS 8 #define VMCS02_POOL_SIZE 1 struct vmcs { @@ -622,6 +623,7 @@ static unsigned long *vmx_msr_bitmap_legacy; static unsigned long *vmx_msr_bitmap_longmode; static bool cpu_has_load_ia32_efer; +static bool cpu_has_load_perf_global_ctrl; static DECLARE_BITMAP(vmx_vpid_bitmap, VMX_NR_VPIDS); static DEFINE_SPINLOCK(vmx_vpid_lock); @@ -1191,15 +1193,34 @@ static void update_exception_bitmap(struct kvm_vcpu *vcpu) vmcs_write32(EXCEPTION_BITMAP, eb); } +static void clear_atomic_switch_msr_special(unsigned long entry, + unsigned long exit) +{ + vmcs_clear_bits(VM_ENTRY_CONTROLS, entry); + vmcs_clear_bits(VM_EXIT_CONTROLS, exit); +} + static void clear_atomic_switch_msr(struct vcpu_vmx *vmx, unsigned msr) { unsigned i; struct msr_autoload *m = &vmx->msr_autoload; - if (msr == MSR_EFER && cpu_has_load_ia32_efer) { - vmcs_clear_bits(VM_ENTRY_CONTROLS, VM_ENTRY_LOAD_IA32_EFER); - vmcs_clear_bits(VM_EXIT_CONTROLS, VM_EXIT_LOAD_IA32_EFER); - return; + switch (msr) { + case MSR_EFER: + if (cpu_has_load_ia32_efer) { + clear_atomic_switch_msr_special(VM_ENTRY_LOAD_IA32_EFER, + VM_EXIT_LOAD_IA32_EFER); + return; + } + break; + case MSR_CORE_PERF_GLOBAL_CTRL: + if (cpu_has_load_perf_global_ctrl) { + clear_atomic_switch_msr_special( + VM_ENTRY_LOAD_IA32_PERF_GLOBAL_CTRL, + VM_EXIT_LOAD_IA32_PERF_GLOBAL_CTRL); + return; + } + break; } for (i = 0; i < m->nr; ++i) @@ -1215,25 +1236,55 @@ static void clear_atomic_switch_msr(struct vcpu_vmx *vmx, unsigned msr) vmcs_write32(VM_EXIT_MSR_LOAD_COUNT, m->nr); } +static void add_atomic_switch_msr_special(unsigned long entry, + unsigned long exit, unsigned long guest_val_vmcs, + unsigned long host_val_vmcs, u64 guest_val, u64 host_val) +{ + vmcs_write64(guest_val_vmcs, guest_val); + vmcs_write64(host_val_vmcs, host_val); + vmcs_set_bits(VM_ENTRY_CONTROLS, entry); + vmcs_set_bits(VM_EXIT_CONTROLS, exit); +} + static void add_atomic_switch_msr(struct vcpu_vmx *vmx, unsigned msr, u64 guest_val, u64 host_val) { unsigned i; struct msr_autoload *m = &vmx->msr_autoload; - if (msr == MSR_EFER && cpu_has_load_ia32_efer) { - vmcs_write64(GUEST_IA32_EFER, guest_val); - vmcs_write64(HOST_IA32_EFER, host_val); - vmcs_set_bits(VM_ENTRY_CONTROLS, VM_ENTRY_LOAD_IA32_EFER); - vmcs_set_bits(VM_EXIT_CONTROLS, VM_EXIT_LOAD_IA32_EFER); - return; + switch (msr) { + case MSR_EFER: + if (cpu_has_load_ia32_efer) { + add_atomic_switch_msr_special(VM_ENTRY_LOAD_IA32_EFER, + VM_EXIT_LOAD_IA32_EFER, + GUEST_IA32_EFER, + HOST_IA32_EFER, + guest_val, host_val); + return; + } + break; + case MSR_CORE_PERF_GLOBAL_CTRL: + if (cpu_has_load_perf_global_ctrl) { + add_atomic_switch_msr_special( + VM_ENTRY_LOAD_IA32_PERF_GLOBAL_CTRL, + VM_EXIT_LOAD_IA32_PERF_GLOBAL_CTRL, + GUEST_IA32_PERF_GLOBAL_CTRL, + HOST_IA32_PERF_GLOBAL_CTRL, + guest_val, host_val); + return; + } + break; } for (i = 0; i < m->nr; ++i) if (m->guest[i].index == msr) break; - if (i == m->nr) { + if (i == NR_AUTOLOAD_MSRS) { + printk_once(KERN_WARNING"Not enough mst switch entries. " + "Can't add msr %x\n", msr); + return; + } else if (i == m->nr) { ++m->nr; vmcs_write32(VM_ENTRY_MSR_LOAD_COUNT, m->nr); vmcs_write32(VM_EXIT_MSR_LOAD_COUNT, m->nr); @@ -2455,6 +2506,42 @@ static __init int setup_vmcs_config(struct vmcs_config *vmcs_conf) && allow_1_setting(MSR_IA32_VMX_EXIT_CTLS, VM_EXIT_LOAD_IA32_EFER); + cpu_has_load_perf_global_ctrl = + allow_1_setting(MSR_IA32_VMX_ENTRY_CTLS, + VM_ENTRY_LOAD_IA32_PERF_GLOBAL_CTRL) + && allow_1_setting(MSR_IA32_VMX_EXIT_CTLS, + VM_EXIT_LOAD_IA32_PERF_GLOBAL_CTRL); + + /* + * Some cpus support VM_ENTRY_(LOAD|SAVE)_IA32_PERF_GLOBAL_CTRL + * but due to arrata below it can't be used. Workaround is to use + * msr load mechanism to switch IA32_PERF_GLOBAL_CTRL. + * + * VM Exit May Incorrectly Clear IA32_PERF_GLOBAL_CTRL [34:32] + * + * AAK155 (model 26) + * AAP115 (model 30) + * AAT100 (model 37) + * BC86,AAY89,BD102 (model 44) + * BA97 (model 46) + * + */ + if (cpu_has_load_perf_global_ctrl && boot_cpu_data.x86 == 0x6) { + switch (boot_cpu_data.x86_model) { + case 26: + case 30: + case 37: + case 44: + case 46: + cpu_has_load_perf_global_ctrl = false; + printk_once(KERN_WARNING"kvm: VM_EXIT_LOAD_IA32_PERF_GLOBAL_CTRL " + "does not work properly. Using workaround\n"); + break; + default: + break; + } + } + return 0; } @@ -5968,6 +6055,24 @@ static void vmx_cancel_injection(struct kvm_vcpu *vcpu) vmcs_write32(VM_ENTRY_INTR_INFO_FIELD, 0); } +static void atomic_switch_perf_msrs(struct vcpu_vmx *vmx) +{ + int i, nr_msrs; + struct perf_guest_switch_msr *msrs; + + msrs = perf_guest_get_msrs(&nr_msrs); + + if (!msrs) + return; + + for (i = 0; i < nr_msrs; i++) + if (msrs[i].host == msrs[i].guest) + clear_atomic_switch_msr(vmx, msrs[i].msr); + else + add_atomic_switch_msr(vmx, msrs[i].msr, msrs[i].guest, + msrs[i].host); +} + #ifdef CONFIG_X86_64 #define R "r" #define Q "q" @@ -6017,6 +6122,8 @@ static void __noclone vmx_vcpu_run(struct kvm_vcpu *vcpu) if (vcpu->guest_debug & KVM_GUESTDBG_SINGLESTEP) vmx_set_interrupt_shadow(vcpu, 0); + atomic_switch_perf_msrs(vmx); + vmx->__launched = vmx->loaded_vmcs->launched; asm( /* Store host registers */ diff --git a/arch/x86/platform/mrst/mrst.c b/arch/x86/platform/mrst/mrst.c index 541020df0da6..b1489a06a49d 100644 --- a/arch/x86/platform/mrst/mrst.c +++ b/arch/x86/platform/mrst/mrst.c @@ -187,11 +187,34 @@ int __init sfi_parse_mrtc(struct sfi_table_header *table) static unsigned long __init mrst_calibrate_tsc(void) { unsigned long flags, fast_calibrate; - - local_irq_save(flags); - fast_calibrate = apbt_quick_calibrate(); - local_irq_restore(flags); - + if (__mrst_cpu_chip == MRST_CPU_CHIP_PENWELL) { + u32 lo, hi, ratio, fsb; + + rdmsr(MSR_IA32_PERF_STATUS, lo, hi); + pr_debug("IA32 perf status is 0x%x, 0x%0x\n", lo, hi); + ratio = (hi >> 8) & 0x1f; + pr_debug("ratio is %d\n", ratio); + if (!ratio) { + pr_err("read a zero ratio, should be incorrect!\n"); + pr_err("force tsc ratio to 16 ...\n"); + ratio = 16; + } + rdmsr(MSR_FSB_FREQ, lo, hi); + if ((lo & 0x7) == 0x7) + fsb = PENWELL_FSB_FREQ_83SKU; + else + fsb = PENWELL_FSB_FREQ_100SKU; + fast_calibrate = ratio * fsb; + pr_debug("read penwell tsc %lu khz\n", fast_calibrate); + lapic_timer_frequency = fsb * 1000 / HZ; + /* mark tsc clocksource as reliable */ + set_cpu_cap(&boot_cpu_data, X86_FEATURE_TSC_RELIABLE); + } else { + local_irq_save(flags); + fast_calibrate = apbt_quick_calibrate(); + local_irq_restore(flags); + } + if (fast_calibrate) return fast_calibrate; @@ -254,6 +277,17 @@ static void mrst_reboot(void) } /* + * Moorestown does not have external NMI source nor port 0x61 to report + * NMI status. The possible NMI sources are from pmu as a result of NMI + * watchdog or lock debug. Reading io port 0x61 results in 0xff which + * misled NMI handler. + */ +static unsigned char mrst_get_nmi_reason(void) +{ + return 0; +} + +/* * Moorestown specific x86_init function overrides and early setup * calls. */ @@ -274,6 +308,8 @@ void __init x86_mrst_early_setup(void) x86_platform.calibrate_tsc = mrst_calibrate_tsc; x86_platform.i8042_detect = mrst_i8042_detect; x86_init.timers.wallclock_init = mrst_rtc_init; + x86_platform.get_nmi_reason = mrst_get_nmi_reason; + x86_init.pci.init = pci_mrst_init; x86_init.pci.fixup_irqs = x86_init_noop; diff --git a/arch/x86/um/asm/processor.h b/arch/x86/um/asm/processor.h index 118c143a9cb4..2c32df6fe231 100644 --- a/arch/x86/um/asm/processor.h +++ b/arch/x86/um/asm/processor.h @@ -11,7 +11,7 @@ #endif #define KSTK_EIP(tsk) KSTK_REG(tsk, HOST_IP) -#define KSTK_ESP(tsk) KSTK_REG(tsk, HOST_IP) +#define KSTK_ESP(tsk) KSTK_REG(tsk, HOST_SP) #define KSTK_EBP(tsk) KSTK_REG(tsk, HOST_BP) #define ARCH_IS_STACKGROW(address) \ diff --git a/arch/x86/xen/enlighten.c b/arch/x86/xen/enlighten.c index da8afd576a6b..1f928659c338 100644 --- a/arch/x86/xen/enlighten.c +++ b/arch/x86/xen/enlighten.c @@ -1356,7 +1356,7 @@ static int __cpuinit xen_hvm_cpu_notify(struct notifier_block *self, int cpu = (long)hcpu; switch (action) { case CPU_UP_PREPARE: - per_cpu(xen_vcpu, cpu) = &HYPERVISOR_shared_info->vcpu_info[cpu]; + xen_vcpu_setup(cpu); if (xen_have_vector_callback) xen_init_lock_cpu(cpu); break; @@ -1386,7 +1386,6 @@ static void __init xen_hvm_guest_init(void) xen_hvm_smp_init(); register_cpu_notifier(&xen_hvm_cpu_notifier); xen_unplug_emulated_devices(); - have_vcpu_info_placement = 0; x86_init.irqs.intr_init = xen_init_IRQ; xen_hvm_init_time_ops(); xen_hvm_init_mmu_ops(); diff --git a/arch/x86/xen/grant-table.c b/arch/x86/xen/grant-table.c index 6bbfd7ac5e81..5a40d24ba331 100644 --- a/arch/x86/xen/grant-table.c +++ b/arch/x86/xen/grant-table.c @@ -71,7 +71,7 @@ int arch_gnttab_map_shared(unsigned long *frames, unsigned long nr_gframes, if (shared == NULL) { struct vm_struct *area = - alloc_vm_area(PAGE_SIZE * max_nr_gframes); + alloc_vm_area(PAGE_SIZE * max_nr_gframes, NULL); BUG_ON(area == NULL); shared = area->addr; *__shared = shared; |