From d8fb91e8344ff11381fc47d43e0b234065be4bd0 Mon Sep 17 00:00:00 2001 From: Arnd Bergmann Date: Fri, 26 Jun 2009 08:14:36 +0200 Subject: CRIS: add pgprot_noncached On CRIS, the high address bit controls caching, which means that we can add a pgprot_noncached() macro that sets this bit in the address. Signed-off-by: Arnd Bergmann Acked-by: Jesper Nilsson --- arch/cris/include/arch-v10/arch/mmu.h | 9 +++++---- arch/cris/include/arch-v32/arch/mmu.h | 10 ++++++---- arch/cris/include/asm/pgtable.h | 2 ++ 3 files changed, 13 insertions(+), 8 deletions(-) (limited to 'arch') diff --git a/arch/cris/include/arch-v10/arch/mmu.h b/arch/cris/include/arch-v10/arch/mmu.h index df84f17..e829e5a 100644 --- a/arch/cris/include/arch-v10/arch/mmu.h +++ b/arch/cris/include/arch-v10/arch/mmu.h @@ -33,10 +33,10 @@ typedef struct /* CRIS PTE bits (see R_TLB_LO in the register description) * - * Bit: 31-13 12-------4 3 2 1 0 - * ________________________________________________ - * | pfn | reserved | global | valid | kernel | we | - * |_____|__________|________|_______|________|_____| + * Bit: 31 30-13 12-------4 3 2 1 0 + * _______________________________________________________ + * | cache |pfn | reserved | global | valid | kernel | we | + * |_______|____|__________|________|_______|________|_____| * * (pfn = physical frame number) */ @@ -53,6 +53,7 @@ typedef struct #define _PAGE_VALID (1<<2) /* page is valid */ #define _PAGE_SILENT_READ (1<<2) /* synonym */ #define _PAGE_GLOBAL (1<<3) /* global page - context is ignored */ +#define _PAGE_NO_CACHE (1<<31) /* part of the uncached memory map */ /* Bits the HW doesn't care about but the kernel uses them in SW */ diff --git a/arch/cris/include/arch-v32/arch/mmu.h b/arch/cris/include/arch-v32/arch/mmu.h index 6bcdc3f..c1a13e0 100644 --- a/arch/cris/include/arch-v32/arch/mmu.h +++ b/arch/cris/include/arch-v32/arch/mmu.h @@ -28,10 +28,10 @@ typedef struct /* * CRISv32 PTE bits: * - * Bit: 31-13 12-5 4 3 2 1 0 - * +-----+------+--------+-------+--------+-------+---------+ - * | pfn | zero | global | valid | kernel | write | execute | - * +-----+------+--------+-------+--------+-------+---------+ + * Bit: 31 30-13 12-5 4 3 2 1 0 + * +-------+-----+------+--------+-------+--------+-------+---------+ + * | cache | pfn | zero | global | valid | kernel | write | execute | + * +-------+-----+------+--------+-------+--------+-------+---------+ */ /* @@ -45,6 +45,8 @@ typedef struct #define _PAGE_VALID (1 << 3) /* Page is valid. */ #define _PAGE_SILENT_READ (1 << 3) /* Same as above. */ #define _PAGE_GLOBAL (1 << 4) /* Global page. */ +#define _PAGE_NO_CACHE (1 << 31) /* part of the uncached memory map */ + /* * The hardware doesn't care about these bits, but the kernel uses them in diff --git a/arch/cris/include/asm/pgtable.h b/arch/cris/include/asm/pgtable.h index 50aa974..1fcce00 100644 --- a/arch/cris/include/asm/pgtable.h +++ b/arch/cris/include/asm/pgtable.h @@ -197,6 +197,8 @@ static inline pte_t __mk_pte(void * page, pgprot_t pgprot) static inline pte_t pte_modify(pte_t pte, pgprot_t newprot) { pte_val(pte) = (pte_val(pte) & _PAGE_CHG_MASK) | pgprot_val(newprot); return pte; } +#define pgprot_noncached(prot) __pgprot((pgprot_val(prot) | _PAGE_NO_CACHE)) + /* pte_val refers to a page in the 0x4xxxxxxx physical DRAM interval * __pte_page(pte_val) refers to the "virtual" DRAM interval -- cgit v1.1 From 0395ac6447c05e9393d4f8187ea6588b9d1daeb7 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Tue, 4 Aug 2009 16:49:52 +0200 Subject: CRIS: convert to asm-generic/hardirq.h Convert CRIS to use asm-generic/hardirq.h Also remove unneeded (incorrect) prototypes for setup_irq(). Signed-off-by: Christoph Hellwig Signed-off-by: Jesper Nilsson --- arch/cris/arch-v10/kernel/time.c | 1 - arch/cris/arch-v32/kernel/smp.c | 2 -- arch/cris/arch-v32/kernel/time.c | 1 - arch/cris/include/asm/hardirq.h | 12 ++---------- arch/cris/kernel/irq.c | 5 ----- 5 files changed, 2 insertions(+), 19 deletions(-) (limited to 'arch') diff --git a/arch/cris/arch-v10/kernel/time.c b/arch/cris/arch-v10/kernel/time.c index 2b73c7a..31ca141 100644 --- a/arch/cris/arch-v10/kernel/time.c +++ b/arch/cris/arch-v10/kernel/time.c @@ -28,7 +28,6 @@ extern void update_xtime_from_cmos(void); extern int set_rtc_mmss(unsigned long nowtime); -extern int setup_irq(int, struct irqaction *); extern int have_rtc; unsigned long get_ns_in_jiffie(void) diff --git a/arch/cris/arch-v32/kernel/smp.c b/arch/cris/arch-v32/kernel/smp.c index d2a3ff8..058addd 100644 --- a/arch/cris/arch-v32/kernel/smp.c +++ b/arch/cris/arch-v32/kernel/smp.c @@ -52,8 +52,6 @@ static struct mm_struct* flush_mm; static struct vm_area_struct* flush_vma; static unsigned long flush_addr; -extern int setup_irq(int, struct irqaction *); - /* Mode registers */ static unsigned long irq_regs[NR_CPUS] = { regi_irq, diff --git a/arch/cris/arch-v32/kernel/time.c b/arch/cris/arch-v32/kernel/time.c index 65633d0..b1920d8 100644 --- a/arch/cris/arch-v32/kernel/time.c +++ b/arch/cris/arch-v32/kernel/time.c @@ -46,7 +46,6 @@ unsigned long timer_regs[NR_CPUS] = extern void update_xtime_from_cmos(void); extern int set_rtc_mmss(unsigned long nowtime); -extern int setup_irq(int, struct irqaction *); extern int have_rtc; #ifdef CONFIG_CPU_FREQ diff --git a/arch/cris/include/asm/hardirq.h b/arch/cris/include/asm/hardirq.h index 74178ad..17bb12d 100644 --- a/arch/cris/include/asm/hardirq.h +++ b/arch/cris/include/asm/hardirq.h @@ -2,16 +2,6 @@ #define __ASM_HARDIRQ_H #include -#include -#include - -typedef struct { - unsigned int __softirq_pending; -} ____cacheline_aligned irq_cpustat_t; - -#include /* Standard mappings for irq_cpustat_t above */ - -void ack_bad_irq(unsigned int irq); #define HARDIRQ_BITS 8 @@ -24,4 +14,6 @@ void ack_bad_irq(unsigned int irq); # error HARDIRQ_BITS is too low! #endif +#include + #endif /* __ASM_HARDIRQ_H */ diff --git a/arch/cris/kernel/irq.c b/arch/cris/kernel/irq.c index 7f642fc..0ca7d98 100644 --- a/arch/cris/kernel/irq.c +++ b/arch/cris/kernel/irq.c @@ -38,11 +38,6 @@ #include -void ack_bad_irq(unsigned int irq) -{ - printk("unexpected IRQ trap at vector %02x\n", irq); -} - int show_interrupts(struct seq_file *p, void *v) { int i = *(loff_t *) v, j; -- cgit v1.1 From 62f589c5e391dc2081db42e801382304c652e43a Mon Sep 17 00:00:00 2001 From: Stoyan Gaydarov Date: Wed, 22 Jul 2009 05:02:33 +0200 Subject: ARRAY_SIZE changes These changes were a direct result of using a semantic patch More information can be found at http://www.emn.fr/x-info/coccinelle/ Signed-off-by: Stoyan Gaydarov Signed-off-by: Jesper Nilsson --- arch/cris/arch-v32/mach-a3/io.c | 2 +- arch/cris/arch-v32/mach-fs/io.c | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) (limited to 'arch') diff --git a/arch/cris/arch-v32/mach-a3/io.c b/arch/cris/arch-v32/mach-a3/io.c index c22f67e..090ceb9 100644 --- a/arch/cris/arch-v32/mach-a3/io.c +++ b/arch/cris/arch-v32/mach-a3/io.c @@ -36,7 +36,7 @@ struct crisv32_ioport crisv32_ioports[] = { }, }; -#define NBR_OF_PORTS sizeof(crisv32_ioports)/sizeof(struct crisv32_ioport) +#define NBR_OF_PORTS ARRAY_SIZE(crisv32_ioports) struct crisv32_iopin crisv32_led_net0_green; struct crisv32_iopin crisv32_led_net0_red; diff --git a/arch/cris/arch-v32/mach-fs/io.c b/arch/cris/arch-v32/mach-fs/io.c index cb6327b..a695866 100644 --- a/arch/cris/arch-v32/mach-fs/io.c +++ b/arch/cris/arch-v32/mach-fs/io.c @@ -52,7 +52,7 @@ struct crisv32_ioport crisv32_ioports[] = { } }; -#define NBR_OF_PORTS sizeof(crisv32_ioports)/sizeof(struct crisv32_ioport) +#define NBR_OF_PORTS ARRAY_SIZE(crisv32_ioports) struct crisv32_iopin crisv32_led_net0_green; struct crisv32_iopin crisv32_led_net0_red; -- cgit v1.1 From 24924ece4482d5466ffcd0affedce63816c88e53 Mon Sep 17 00:00:00 2001 From: Jesper Nilsson Date: Wed, 23 Sep 2009 13:21:57 +0200 Subject: CRIS: Cleanup linker script using new linker script macros. Signed-off-by: Tim Abbott Signed-off-by: Jesper Nilsson --- arch/cris/kernel/vmlinux.lds.S | 37 ++++++++----------------------------- 1 file changed, 8 insertions(+), 29 deletions(-) (limited to 'arch') diff --git a/arch/cris/kernel/vmlinux.lds.S b/arch/cris/kernel/vmlinux.lds.S index 0d2adfc..971c2fa 100644 --- a/arch/cris/kernel/vmlinux.lds.S +++ b/arch/cris/kernel/vmlinux.lds.S @@ -51,10 +51,7 @@ SECTIONS _etext = . ; /* End of text section. */ __etext = .; - . = ALIGN(4); /* Exception table. */ - __start___ex_table = .; - __ex_table : { *(__ex_table) } - __stop___ex_table = .; + EXCEPTION_TABLE(4) RODATA @@ -67,36 +64,24 @@ SECTIONS __edata = . ; /* End of data section. */ _edata = . ; - . = ALIGN(PAGE_SIZE); /* init_task and stack, must be aligned. */ - .data.init_task : { *(.data.init_task) } + INIT_TASK_DATA_SECTION(PAGE_SIZE) . = ALIGN(PAGE_SIZE); /* Init code and data. */ __init_begin = .; - .init.text : { - _sinittext = .; - INIT_TEXT - _einittext = .; - } + INIT_TEXT_SECTION(PAGE_SIZE) .init.data : { INIT_DATA } - . = ALIGN(16); - __setup_start = .; - .init.setup : { *(.init.setup) } - __setup_end = .; + .init.setup : { INIT_SETUP(16) } #ifdef CONFIG_ETRAX_ARCH_V32 __start___param = .; __param : { *(__param) } __stop___param = .; #endif .initcall.init : { - __initcall_start = .; - INITCALLS - __initcall_end = .; + INIT_CALLS } .con_initcall.init : { - __con_initcall_start = .; - *(.con_initcall.init) - __con_initcall_end = .; + CON_INITCALL } SECURITY_INIT @@ -114,9 +99,7 @@ SECTIONS PERCPU(PAGE_SIZE) .init.ramfs : { - __initramfs_start = .; - *(.init.ramfs) - __initramfs_end = .; + INIT_RAM_FS } #endif @@ -130,11 +113,7 @@ SECTIONS __init_end = .; __data_end = . ; /* Move to _edata ? */ - __bss_start = .; /* BSS. */ - .bss : { - *(COMMON) - *(.bss) - } + BSS_SECTION(0, 0, 0) . = ALIGN (0x20); _end = .; -- cgit v1.1