diff options
| author | Linus Torvalds <torvalds@woody.osdl.org> | 2006-12-01 16:44:02 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.osdl.org> | 2006-12-01 16:44:02 -0800 |
| commit | c3e59d1e891f6140a346de2b8547e25133c716b0 (patch) | |
| tree | b2a669f625009a3a33f20f648bd654637323d296 /arch | |
| parent | b07e3c3a1db0ce399d2a1d04860e1b901927c05e (diff) | |
| parent | aa414dff4f7bef29457592414551becdca72dd6b (diff) | |
Merge branch 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus
* 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus: (31 commits)
[MIPS] Remove duplicate ISA DMA code for 0 DMA channel case.
[MIPS] Remove unused definition of cpu_to_lelongp()
[MIPS] Remove userspace proofing from <asm/bitops.h>.
[MIPS] Remove old junk left from old atomic_lock.
[MIPS] Use conditional traps for BUG_ON on MIPS II and better.
[MIPS] mips HPT cleanup: make clocksource_mips public
[MIPS] do_IRQ cleanup
[MIPS] Avoid dupliate D-cache flush on R400C / R4400 SC and MC variants.
[MIPS] Remove redundant r4k_blast_icache() calls
[MIPS] Work around bogus gcc warnings.
[MIPS] Fix double inclusions
[MIPS] use generic_handle_irq, handle_level_irq, handle_percpu_irq
[MIPS] IRQ cleanups
[MIPS] mips hpt cleanup: get rid of mips_hpt_init
[MIPS] PB1200: Remove duplicate definitions
[MIPS] Fix alignment hole in struct cache_desc; shrink struct.
[MIPS] Oprofile: kernel support for the R10000.
[MIPS] Remove unused R10000 performance counter definitions.
[MIPS] Add support for kexec
[MIPS] Don't print presence of WAIT instruction on bootup.
...
Diffstat (limited to 'arch')
79 files changed, 909 insertions, 1945 deletions
diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig index 22bb540b5c0..27f83e64296 100644 --- a/arch/mips/Kconfig +++ b/arch/mips/Kconfig @@ -266,8 +266,8 @@ config MIPS_MALTA select BOOT_ELF32 select HAVE_STD_PC_SERIAL_PORT select DMA_NONCOHERENT - select IRQ_CPU select GENERIC_ISA_DMA + select IRQ_CPU select HW_HAS_PCI select I8259 select MIPS_BOARDS_GEN @@ -534,7 +534,7 @@ config SGI_IP22 select HW_HAS_EISA select IP22_CPU_SCACHE select IRQ_CPU - select NO_ISA if ISA + select GENERIC_ISA_DMA_SUPPORT_BROKEN select SWAP_IO_SPACE select SYS_HAS_CPU_R4X00 select SYS_HAS_CPU_R5000 @@ -766,6 +766,23 @@ config TOSHIBA_RBTX4938 endchoice +config KEXEC + bool "Kexec system call (EXPERIMENTAL)" + depends on 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 + but it is indepedent of the system firmware. And like a reboot + you can start any kernel with it, not just Linux. + + The name comes from the similiarity to the exec system call. + + It is an ongoing process to be certain the hardware in a machine + is properly shutdown, so do not be surprised if this code does not + initially work for you. It may help to enable device hotplugging + support. As of this writing the exact hardware interface is + strongly in flux, so no good recommendation can be made. + source "arch/mips/ddb5xxx/Kconfig" source "arch/mips/gt64120/ev64120/Kconfig" source "arch/mips/jazz/Kconfig" @@ -864,6 +881,9 @@ config MIPS_NILE4 config MIPS_DISABLE_OBSOLETE_IDE bool +config GENERIC_ISA_DMA_SUPPORT_BROKEN + bool + # # Endianess selection. Sufficiently obscure so many users don't know what to # answer,so we try hard to limit the available choices. Also the use of a @@ -1835,13 +1855,11 @@ source "drivers/pci/Kconfig" config ISA bool -config NO_ISA - bool - config EISA bool "EISA support" depends on HW_HAS_EISA select ISA + select GENERIC_ISA_DMA ---help--- The Extended Industry Standard Architecture (EISA) bus was developed as an open alternative to the IBM MicroChannel bus. diff --git a/arch/mips/Makefile b/arch/mips/Makefile index d580d46f967..641aa30b363 100644 --- a/arch/mips/Makefile +++ b/arch/mips/Makefile @@ -63,9 +63,7 @@ cflags-y += -mabi=64 ifdef CONFIG_BUILD_ELF64 cflags-y += $(call cc-option,-mno-explicit-relocs) else -# -msym32 can not be used for modules since they are loaded into XKSEG -CFLAGS_MODULE += $(call cc-option,-mno-explicit-relocs) -CFLAGS_KERNEL += $(call cc-option,-msym32) +cflags-y += $(call cc-option,-msym32) endif endif diff --git a/arch/mips/au1000/common/irq.c b/arch/mips/au1000/common/irq.c index 2abe132bb07..9cf7b671583 100644 --- a/arch/mips/au1000/common/irq.c +++ b/arch/mips/au1000/common/irq.c @@ -70,7 +70,6 @@ extern irq_cpustat_t irq_stat [NR_CPUS]; extern void mips_timer_interrupt(void); static void setup_local_irq(unsigned int irq, int type, int int_req); -static unsigned int startup_irq(unsigned int irq); static void end_irq(unsigned int irq_nr); static inline void mask_and_ack_level_irq(unsigned int irq_nr); static inline void mask_and_ack_rise_edge_irq(unsigned int irq_nr); @@ -84,20 +83,6 @@ void (*board_init_irq)(void); static DEFINE_SPINLOCK(irq_lock); -static unsigned int startup_irq(unsigned int irq_nr) -{ - local_enable_irq(irq_nr); - return 0; -} - - -static void shutdown_irq(unsigned int irq_nr) -{ - local_disable_irq(irq_nr); - return; -} - - inline void local_enable_irq(unsigned int irq_nr) { if (irq_nr > AU1000_LAST_INTC0_INT) { @@ -249,41 +234,37 @@ void restore_local_and_enable(int controller, unsigned long mask) static struct irq_chip rise_edge_irq_type = { .typename = "Au1000 Rise Edge", - .startup = startup_irq, - .shutdown = shutdown_irq, - .enable = local_enable_irq, - .disable = local_disable_irq, .ack = mask_and_ack_rise_edge_irq, + .mask = local_disable_irq, + .mask_ack = mask_and_ack_rise_edge_irq, + .unmask = local_enable_irq, .end = end_irq, }; static struct irq_chip fall_edge_irq_type = { .typename = "Au1000 Fall Edge", - .startup = startup_irq, - .shutdown = shutdown_irq, - .enable = local_enable_irq, - .disable = local_disable_irq, .ack = mask_and_ack_fall_edge_irq, + .mask = local_disable_irq, + .mask_ack = mask_and_ack_fall_edge_irq, + .unmask = local_enable_irq, .end = end_irq, }; static struct irq_chip either_edge_irq_type = { .typename = "Au1000 Rise or Fall Edge", - .startup = startup_irq, - .shutdown = shutdown_irq, - .enable = local_enable_irq, - .disable = local_disable_irq, .ack = mask_and_ack_either_edge_irq, + .mask = local_disable_irq, + .mask_ack = mask_and_ack_either_edge_irq, + .unmask = local_enable_irq, .end = end_irq, }; static struct irq_chip level_irq_type = { .typename = "Au1000 Level", - .startup = startup_irq, - .shutdown = shutdown_irq, - .enable = local_enable_irq, - .disable = local_disable_irq, .ack = mask_and_ack_level_irq, + .mask = local_disable_irq, + .mask_ack = mask_and_ack_level_irq, + .unmask = local_enable_irq, .end = end_irq, }; @@ -328,31 +309,31 @@ static void setup_local_irq(unsigned int irq_nr, int type, int int_req) au_writel(1<<(irq_nr-32), IC1_CFG2CLR); au_writel(1<<(irq_nr-32), IC1_CFG1CLR); au_writel(1<<(irq_nr-32), IC1_CFG0SET); - irq_desc[irq_nr].chip = &rise_edge_irq_type; + set_irq_chip(irq_nr, &rise_edge_irq_type); break; case INTC_INT_FALL_EDGE: /* 0:1:0 */ au_writel(1<<(irq_nr-32), IC1_CFG2CLR); au_writel(1<<(irq_nr-32), IC1_CFG1SET); au_writel(1<<(irq_nr-32), IC1_CFG0CLR); - irq_desc[irq_nr].chip = &fall_edge_irq_type; + set_irq_chip(irq_nr, &fall_edge_irq_type); break; case INTC_INT_RISE_AND_FALL_EDGE: /* 0:1:1 */ au_writel(1<<(irq_nr-32), IC1_CFG2CLR); au_writel(1<<(irq_nr-32), IC1_CFG1SET); au_writel(1<<(irq_nr-32), IC1_CFG0SET); - irq_desc[irq_nr].chip = &either_edge_irq_type; + set_irq_chip(irq_nr, &either_edge_irq_type); break; case INTC_INT_HIGH_LEVEL: /* 1:0:1 */ au_writel(1<<(irq_nr-32), IC1_CFG2SET); au_writel(1<<(irq_nr-32), IC1_CFG1CLR); au_writel(1<<(irq_nr-32), IC1_CFG0SET); - irq_desc[irq_nr].chip = &level_irq_type; + set_irq_chip(irq_nr, &level_irq_type); break; case INTC_INT_LOW_LEVEL: /* 1:1:0 */ au_writel(1<<(irq_nr-32), IC1_CFG2SET); au_writel(1<<(irq_nr-32), IC1_CFG1SET); au_writel(1<<(irq_nr-32), IC1_CFG0CLR); - irq_desc[irq_nr].chip = &level_irq_type; + set_irq_chip(irq_nr, &level_irq_type); break; case INTC_INT_DISABLED: /* 0:0:0 */ au_writel(1<<(irq_nr-32), IC1_CFG0CLR); @@ -380,31 +361,31 @@ static void setup_local_irq(unsigned int irq_nr, int type, int int_req) au_writel(1<<irq_nr, IC0_CFG2CLR); au_writel(1<<irq_nr, IC0_CFG1CLR); au_writel(1<<irq_nr, IC0_CFG0SET); - irq_desc[irq_nr].chip = &rise_edge_irq_type; + set_irq_chip(irq_nr, &rise_edge_irq_type); break; case INTC_INT_FALL_EDGE: /* 0:1:0 */ au_writel(1<<irq_nr, IC0_CFG2CLR); au_writel(1<<irq_nr, IC0_CFG1SET); au_writel(1<<irq_nr, IC0_CFG0CLR); - irq_desc[irq_nr].chip = &fall_edge_irq_type; + set_irq_chip(irq_nr, &fall_edge_irq_type); break; case INTC_INT_RISE_AND_FALL_EDGE: /* 0:1:1 */ au_writel(1<<irq_nr, IC0_CFG2CLR); au_writel(1<<irq_nr, IC0_CFG1SET); au_writel(1<<irq_nr, IC0_CFG0SET); - irq_desc[irq_nr].chip = &either_edge_irq_type; + set_irq_chip(irq_nr, &either_edge_irq_type); break; case INTC_INT_HIGH_LEVEL: /* 1:0:1 */ au_writel(1<<irq_nr, IC0_CFG2SET); au_writel(1<<irq_nr, IC0_CFG1CLR); au_writel(1<<irq_nr, IC0_CFG0SET); - irq_desc[irq_nr].chip = &level_irq_type; + set_irq_chip(irq_nr, &level_irq_type); break; case INTC_INT_LOW_LEVEL: /* 1:1:0 */ au_writel(1<<irq_nr, IC0_CFG2SET); au_writel(1<<irq_nr, IC0_CFG1SET); au_writel(1<<irq_nr, IC0_CFG0CLR); - irq_desc[irq_nr].chip = &level_irq_type; + set_irq_chip(irq_nr, &level_irq_type); break; case INTC_INT_DISABLED: /* 0:0:0 */ au_writel(1<<irq_nr, IC0_CFG0CLR); diff --git a/arch/mips/au1000/pb1200/board_setup.c b/arch/mips/au1000/pb1200/board_setup.c index 8b953b9fc25..043302b7fe5 100644 --- a/arch/mips/au1000/pb1200/board_setup.c +++ b/arch/mips/au1000/pb1200/board_setup.c @@ -55,7 +55,7 @@ #endif extern void _board_init_irq(void); -extern void (*board_init_irq)(void); +extern void (*board_init_irq)(void); void board_reset (void) { @@ -151,11 +151,7 @@ void __init board_setup(void) #endif /* Setup Pb1200 External Interrupt Controller */ - { - extern void (*board_init_irq)(void); - extern void _board_init_irq(void); - board_init_irq = _board_init_irq; - } + board_init_irq = _board_init_irq; } int diff --git a/arch/mips/cobalt/irq.c b/arch/mips/cobalt/irq.c index 82e569d5b02..4c46f0e7378 100644 --- a/arch/mips/cobalt/irq.c +++ b/arch/mips/cobalt/irq.c @@ -45,25 +45,22 @@ static inline void galileo_irq(void) { unsigned int mask, pending, devfn; - mask = GALILEO_INL(GT_INTRMASK_OFS); - pending = GALILEO_INL(GT_INTRCAUSE_OFS) & mask; + mask = GT_READ(GT_INTRMASK_OFS); + pending = GT_READ(GT_INTRCAUSE_OFS) & mask; - if (pending & GALILEO_INTR_T0EXP) { - - GALILEO_OUTL(~GALILEO_INTR_T0EXP, GT_INTRCAUSE_OFS); + if (pending & GT_INTR_T0EXP_MSK) { + GT_WRITE(GT_INTRCAUSE_OFS, ~GT_INTR_T0EXP_MSK); do_IRQ(COBALT_GALILEO_IRQ); - - } else if (pending & GALILEO_INTR_RETRY_CTR) { - - devfn = GALILEO_INL(GT_PCI0_CFGADDR_OFS) >> 8; - GALILEO_OUTL(~GALILEO_INTR_RETRY_CTR, GT_INTRCAUSE_OFS); - printk(KERN_WARNING "Galileo: PCI retry count exceeded (%02x.%u)\n", - PCI_SLOT(devfn), PCI_FUNC(devfn)); - + } else if (pending & GT_INTR_RETRYCTR0_MSK) { + devfn = GT_READ(GT_PCI0_CFGADDR_OFS) >> 8; + GT_WRITE(GT_INTRCAUSE_OFS, ~GT_INTR_RETRYCTR0_MSK); + printk(KERN_WARNING + "Galileo: PCI retry count exceeded (%02x.%u)\n", + PCI_SLOT(devfn), PCI_FUNC(devfn)); } else { - - GALILEO_OUTL(mask & ~pending, GT_INTRMASK_OFS); - printk(KERN_WARNING "Galileo: masking unexpected interrupt %08x\n", pending); + GT_WRITE(GT_INTRMASK_OFS, mask & ~pending); + printk(KERN_WARNING + "Galileo: masking unexpected interrupt %08x\n", pending); } } @@ -104,7 +101,7 @@ void __init arch_init_irq(void) * Mask all Galileo interrupts. The Galileo * handler is set in cobalt_timer_setup() */ - GALILEO_OUTL(0, GT_INTRMASK_OFS); + GT_WRITE(GT_INTRMASK_OFS, 0); init_i8259_irqs(); /* 0 ... 15 */ mips_cpu_irq_init(COBALT_CPU_IRQ); /* 16 ... 23 */ diff --git a/arch/mips/cobalt/setup.c b/arch/mips/cobalt/setup.c index bf9dc72b972..e8f0f20b852 100644 --- a/arch/mips/cobalt/setup.c +++ b/arch/mips/cobalt/setup.c @@ -51,23 +51,23 @@ const char *get_system_type(void) void __init plat_timer_setup(struct irqaction *irq) { /* Load timer value for HZ (TCLK is 50MHz) */ - GALILEO_OUTL(50*1000*1000 / HZ, GT_TC0_OFS); + GT_WRITE(GT_TC0_OFS, 50*1000*1000 / HZ); /* Enable timer */ - GALILEO_OUTL(GALILEO_ENTC0 | GALILEO_SELTC0, GT_TC_CONTROL_OFS); + GT_WRITE(GT_TC_CONTROL_OFS, GT_TC_CONTROL_ENTC0_MSK | GT_TC_CONTROL_SELTC0_MSK); /* Register interrupt */ setup_irq(COBALT_GALILEO_IRQ, irq); /* Enable interrupt */ - GALILEO_OUTL(GALILEO_INTR_T0EXP | GALILEO_INL(GT_INTRMASK_OFS), GT_INTRMASK_OFS); + GT_WRITE(GT_INTRMASK_OFS, GT_INTR_T0EXP_MSK | GT_READ(GT_INTRMASK_OFS)); } extern struct pci_ops gt64111_pci_ops; static struct resource cobalt_mem_resource = { - .start = GT64111_MEM_BASE, - .end = GT64111_MEM_END, + .start = GT_DEF_PCI0_MEM0_BASE, + .end = GT_DEF_PCI0_MEM0_BASE + GT_DEF_PCI0_MEM0_SIZE - 1, .name = "PCI memory", .flags = IORESOURCE_MEM }; @@ -115,7 +115,7 @@ static struct pci_controller cobalt_pci_controller = { .mem_resource = &cobalt_mem_resource, .mem_offset = 0, .io_resource = &cobalt_io_resource, - .io_offset = 0 - GT64111_IO_BASE + .io_offset = 0 - GT_DEF_PCI0_IO_BASE, }; void __init plat_mem_setup(void) @@ -128,7 +128,7 @@ void __init plat_mem_setup(void) _machine_halt = cobalt_machine_halt; pm_power_off = cobalt_machine_power_off; - set_io_port_base(CKSEG1ADDR(GT64111_IO_BASE)); + set_io_port_base(CKSEG1ADDR(GT_DEF_PCI0_IO_BASE)); /* I/O port resource must include UART and LCD/buttons */ ioport_resource.end = 0x0fffffff; @@ -139,7 +139,7 @@ void __init plat_mem_setup(void) /* Read the cobalt id register out of the PCI config space */ PCI_CFG_SET(devfn, (VIA_COBALT_BRD_ID_REG & ~0x3)); - cobalt_board_id = GALILEO_INL(GT_PCI0_CFGDATA_OFS); + cobalt_board_id = GT_READ(GT_PCI0_CFGDATA_OFS); cobalt_board_id >>= ((VIA_COBALT_BRD_ID_REG & 3) * 8); cobalt_board_id = VIA_COBALT_BRD_REG_to_ID(cobalt_board_id); diff --git a/arch/mips/ddb5xxx/ddb5477/irq_5477.c b/arch/mips/ddb5xxx/ddb5477/irq_5477.c index ba52705a273..96249aa5df5 100644 --- a/arch/mips/ddb5xxx/ddb5477/irq_5477.c +++ b/arch/mips/ddb5xxx/ddb5477/irq_5477.c @@ -53,14 +53,6 @@ vrc5477_irq_disable(unsigned int irq) ll_vrc5477_irq_disable(irq - vrc5477_irq_base); } -static unsigned int vrc5477_irq_startup(unsigned int irq) -{ - vrc5477_irq_enable(irq); - return 0; -} - -#define vrc5477_irq_shutdown vrc5477_irq_disable - static void vrc5477_irq_ack(unsigned int irq) { @@ -91,11 +83,10 @@ vrc5477_irq_end(unsigned int irq) struct irq_chip vrc5477_irq_controller = { .typ |