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Merge branch 'next/generic' into mips-for-linux-next

This commit is contained in:
Ralf Baechle 2012-01-11 15:41:47 +01:00
parent 5b0ec2efb7 d7a887a73d
commit 39b741431a
52 changed files with 992 additions and 176 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
arch/mips/alchemy/common/dbdma.c
View File

@ -1019,8 +1019,7 @@ static int __init dbdma_setup(unsigned int irq, dbdev_tab_t *idtable)
dbdma_gptr->ddma_inten = 0xffff;
au_sync();
ret = request_irq(irq, dbdma_interrupt, IRQF_DISABLED, "dbdma",
(void *)dbdma_gptr);
ret = request_irq(irq, dbdma_interrupt, 0, "dbdma", (void *)dbdma_gptr);
if (ret)
printk(KERN_ERR "Cannot grab DBDMA interrupt!\n");
else {

2
arch/mips/alchemy/common/time.c
View File

@ -92,7 +92,7 @@ static struct clock_event_device au1x_rtcmatch2_clockdev = {
static struct irqaction au1x_rtcmatch2_irqaction = {
.handler = au1x_rtcmatch2_irq,
.flags = IRQF_DISABLED | IRQF_TIMER,
.flags = IRQF_TIMER,
.name = "timer",
.dev_id = &au1x_rtcmatch2_clockdev,
};

4
arch/mips/alchemy/devboards/db1200/platform.c
View File

@ -276,12 +276,12 @@ static int db1200_mmc_cd_setup(void *mmc_host, int en)
if (en) {
ret = request_irq(DB1200_SD0_INSERT_INT, db1200_mmc_cd,
IRQF_DISABLED, "sd_insert", mmc_host);
0, "sd_insert", mmc_host);
if (ret)
goto out;
ret = request_irq(DB1200_SD0_EJECT_INT, db1200_mmc_cd,
IRQF_DISABLED, "sd_eject", mmc_host);
0, "sd_eject", mmc_host);
if (ret) {
free_irq(DB1200_SD0_INSERT_INT, mmc_host);
goto out;

8
arch/mips/cavium-octeon/setup.c
View File

@ -642,14 +642,6 @@ void __init plat_mem_setup(void)
total = 0;
/* First add the init memory we will be returning. */
memory = __pa_symbol(&__init_begin) & PAGE_MASK;
mem_alloc_size = (__pa_symbol(&__init_end) & PAGE_MASK) - memory;
if (mem_alloc_size > 0) {
add_memory_region(memory, mem_alloc_size, BOOT_MEM_RAM);
total += mem_alloc_size;
}
/*
* The Mips memory init uses the first memory location for
* some memory vectors. When SPARSEMEM is in use, it doesn't

1
arch/mips/dec/setup.c
View File

@ -110,7 +110,6 @@ static struct irqaction fpuirq = {
};
static struct irqaction busirq = {
.flags = IRQF_DISABLED,
.name = "bus error",
.flags = IRQF_NO_THREAD,
};

1
arch/mips/include/asm/bootinfo.h
View File

@ -86,6 +86,7 @@ extern unsigned long mips_machtype;
#define BOOT_MEM_RAM 1
#define BOOT_MEM_ROM_DATA 2
#define BOOT_MEM_RESERVED 3
#define BOOT_MEM_INIT_RAM 4
/*
* A memory map that's built upon what was determined

56
arch/mips/include/asm/gio_device.h Normal file
View File

@ -0,0 +1,56 @@
#include <linux/device.h>
#include <linux/mod_devicetable.h>
struct gio_device_id {
__u8 id;
};
struct gio_device {
struct device dev;
struct resource resource;
unsigned int irq;
unsigned int slotno;
const char *name;
struct gio_device_id id;
unsigned id32:1;
unsigned gio64:1;
};
#define to_gio_device(d) container_of(d, struct gio_device, dev)
struct gio_driver {
const char *name;
struct module *owner;
const struct gio_device_id *id_table;
int (*probe)(struct gio_device *, const struct gio_device_id *);
void (*remove)(struct gio_device *);
int (*suspend)(struct gio_device *, pm_message_t);
int (*resume)(struct gio_device *);
void (*shutdown)(struct gio_device *);
struct device_driver driver;
};
#define to_gio_driver(drv) container_of(drv, struct gio_driver, driver)
extern const struct gio_device_id *gio_match_device(const struct gio_device_id *,
const struct gio_device *);
extern struct gio_device *gio_dev_get(struct gio_device *);
extern void gio_dev_put(struct gio_device *);
extern int gio_device_register(struct gio_device *);
extern void gio_device_unregister(struct gio_device *);
extern void gio_release_dev(struct device *);
static inline void gio_device_free(struct gio_device *dev)
{
gio_release_dev(&dev->dev);
}
extern int gio_register_driver(struct gio_driver *);
extern void gio_unregister_driver(struct gio_driver *);
#define gio_get_drvdata(_dev) drv_get_drvdata(&(_dev)->dev)
#define gio_set_drvdata(_dev, data) drv_set_drvdata(&(_dev)->dev, (data))
extern void gio_set_master(struct gio_device *);

2
arch/mips/include/asm/hugetlb.h
View File

@ -70,7 +70,7 @@ static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
unsigned long addr, pte_t *ptep)
{
flush_tlb_mm(vma->vm_mm);
flush_tlb_page(vma, addr & huge_page_mask(hstate_vma(vma)));
}
static inline int huge_pte_none(pte_t pte)

2
arch/mips/include/asm/mach-generic/floppy.h
View File

@ -98,7 +98,7 @@ static inline void fd_disable_irq(void)
static inline int fd_request_irq(void)
{
return request_irq(FLOPPY_IRQ, floppy_interrupt,
IRQF_DISABLED, "floppy", NULL);
0, "floppy", NULL);
}
static inline void fd_free_irq(void)

2
arch/mips/include/asm/mach-jazz/floppy.h
View File

@ -90,7 +90,7 @@ static inline void fd_disable_irq(void)
static inline int fd_request_irq(void)
{
return request_irq(FLOPPY_IRQ, floppy_interrupt,
IRQF_DISABLED, "floppy", NULL);
0, "floppy", NULL);
}
static inline void fd_free_irq(void)

8
arch/mips/include/asm/page.h
View File

@ -38,6 +38,14 @@
#define HPAGE_SIZE (_AC(1,UL) << HPAGE_SHIFT)
#define HPAGE_MASK (~(HPAGE_SIZE - 1))
#define HUGETLB_PAGE_ORDER (HPAGE_SHIFT - PAGE_SHIFT)
#else /* !CONFIG_HUGETLB_PAGE */
# ifndef BUILD_BUG
# define BUILD_BUG() do { extern void __build_bug(void); __build_bug(); } while (0)
# endif
#define HPAGE_SHIFT ({BUILD_BUG(); 0; })
#define HPAGE_SIZE ({BUILD_BUG(); 0; })
#define HPAGE_MASK ({BUILD_BUG(); 0; })
#define HUGETLB_PAGE_ORDER ({BUILD_BUG(); 0; })
#endif /* CONFIG_HUGETLB_PAGE */
#ifndef __ASSEMBLY__

12
arch/mips/include/asm/pgtable-32.h
View File

@ -19,17 +19,7 @@
#include <asm-generic/pgtable-nopmd.h>
/*
* - add_temporary_entry() add a temporary TLB entry. We use TLB entries
* starting at the top and working down. This is for populating the
* TLB before trap_init() puts the TLB miss handler in place. It
* should be used only for entries matching the actual page tables,
* to prevent inconsistencies.
*/
extern int add_temporary_entry(unsigned long entrylo0, unsigned long entrylo1,
unsigned long entryhi, unsigned long pagemask);
/* Basically we have the same two-level (which is the logical three level
* Basically we have the same two-level (which is the logical three level
* Linux page table layout folded) page tables as the i386. Some day
* when we have proper page coloring support we can have a 1% quicker
* tlb refill handling mechanism, but for now it is a bit slower but

2
arch/mips/jazz/irq.c
View File

@ -134,7 +134,7 @@ static irqreturn_t r4030_timer_interrupt(int irq, void *dev_id)
static struct irqaction r4030_timer_irqaction = {
.handler = r4030_timer_interrupt,
.flags = IRQF_DISABLED | IRQF_TIMER,
.flags = IRQF_TIMER,
.name = "R4030 timer",
};

2
arch/mips/kernel/cevt-bcm1480.c
View File

@ -145,7 +145,7 @@ void __cpuinit sb1480_clockevent_init(void)
bcm1480_unmask_irq(cpu, irq);
action->handler = sibyte_counter_handler;
action->flags = IRQF_DISABLED | IRQF_PERCPU | IRQF_TIMER;
action->flags = IRQF_PERCPU | IRQF_TIMER;
action->name = name;
action->dev_id = cd;

2
arch/mips/kernel/cevt-ds1287.c
View File

@ -108,7 +108,7 @@ static irqreturn_t ds1287_interrupt(int irq, void *dev_id)
static struct irqaction ds1287_irqaction = {
.handler = ds1287_interrupt,
.flags = IRQF_DISABLED | IRQF_PERCPU | IRQF_TIMER,
.flags = IRQF_PERCPU | IRQF_TIMER,
.name = "ds1287",
};

2
arch/mips/kernel/cevt-gt641xx.c
View File

@ -114,7 +114,7 @@ static irqreturn_t gt641xx_timer0_interrupt(int irq, void *dev_id)
static struct irqaction gt641xx_timer0_irqaction = {
.handler = gt641xx_timer0_interrupt,
.flags = IRQF_DISABLED | IRQF_PERCPU | IRQF_TIMER,
.flags = IRQF_PERCPU | IRQF_TIMER,
.name = "gt641xx_timer0",
};

2
arch/mips/kernel/cevt-r4k.c
View File

@ -84,7 +84,7 @@ out:
struct irqaction c0_compare_irqaction = {
.handler = c0_compare_interrupt,
.flags = IRQF_DISABLED | IRQF_PERCPU | IRQF_TIMER,
.flags = IRQF_PERCPU | IRQF_TIMER,
.name = "timer",
};

2
arch/mips/kernel/cevt-sb1250.c
View File

@ -144,7 +144,7 @@ void __cpuinit sb1250_clockevent_init(void)
sb1250_unmask_irq(cpu, irq);
action->handler = sibyte_counter_handler;
action->flags = IRQF_DISABLED | IRQF_PERCPU | IRQF_TIMER;
action->flags = IRQF_PERCPU | IRQF_TIMER;
action->name = name;
action->dev_id = cd;

2
arch/mips/kernel/cevt-txx9.c
View File

@ -146,7 +146,7 @@ static irqreturn_t txx9tmr_interrupt(int irq, void *dev_id)
static struct irqaction txx9tmr_irq = {
.handler = txx9tmr_interrupt,
.flags = IRQF_DISABLED | IRQF_PERCPU | IRQF_TIMER,
.flags = IRQF_PERCPU | IRQF_TIMER,
.name = "txx9tmr",
.dev_id = &txx9_clock_event_device,
};

2
arch/mips/kernel/i8253.c
View File

@ -19,7 +19,7 @@ static irqreturn_t timer_interrupt(int irq, void *dev_id)
static struct irqaction irq0 = {
.handler = timer_interrupt,
.flags = IRQF_DISABLED | IRQF_NOBALANCING | IRQF_TIMER,
.flags = IRQF_NOBALANCING | IRQF_TIMER,
.name = "timer"
};

1
arch/mips/kernel/rtlx.c
View File

@ -473,7 +473,6 @@ static const struct file_operations rtlx_fops = {
static struct irqaction rtlx_irq = {
.handler = rtlx_interrupt,
.flags = IRQF_DISABLED,
.name = "RTLX",
};

47
arch/mips/kernel/setup.c
View File

@ -121,6 +121,9 @@ static void __init print_memory_map(void)
case BOOT_MEM_RAM:
printk(KERN_CONT "(usable)\n");
break;
case BOOT_MEM_INIT_RAM:
printk(KERN_CONT "(usable after init)\n");
break;
case BOOT_MEM_ROM_DATA:
printk(KERN_CONT "(ROM data)\n");
break;
@ -361,15 +364,24 @@ static void __init bootmem_init(void)
for (i = 0; i < boot_mem_map.nr_map; i++) {
unsigned long start, end, size;
/*
* Reserve usable memory.
*/
if (boot_mem_map.map[i].type != BOOT_MEM_RAM)
continue;
start = PFN_UP(boot_mem_map.map[i].addr);
end = PFN_DOWN(boot_mem_map.map[i].addr
+ boot_mem_map.map[i].size);
/*
* Reserve usable memory.
*/
switch (boot_mem_map.map[i].type) {
case BOOT_MEM_RAM:
break;
case BOOT_MEM_INIT_RAM:
memory_present(0, start, end);
continue;
default:
/* Not usable memory */
continue;
}
/*
* We are rounding up the start address of usable memory
* and at the end of the usable range downwards.
@ -455,11 +467,33 @@ early_param("mem", early_parse_mem);
static void __init arch_mem_init(char **cmdline_p)
{
phys_t init_mem, init_end, init_size;
extern void plat_mem_setup(void);
/* call board setup routine */
plat_mem_setup();
init_mem = PFN_UP(__pa_symbol(&__init_begin)) << PAGE_SHIFT;
init_end = PFN_DOWN(__pa_symbol(&__init_end)) << PAGE_SHIFT;
init_size = init_end - init_mem;
if (init_size) {
/* Make sure it is in the boot_mem_map */
int i, found;
found = 0;
for (i = 0; i < boot_mem_map.nr_map; i++) {
if (init_mem >= boot_mem_map.map[i].addr &&
init_mem < (boot_mem_map.map[i].addr +
boot_mem_map.map[i].size)) {
found = 1;
break;
}
}
if (!found)
add_memory_region(init_mem, init_size,
BOOT_MEM_INIT_RAM);
}
pr_info("Determined physical RAM map:\n");
print_memory_map();
@ -523,6 +557,7 @@ static void __init resource_init(void)
res = alloc_bootmem(sizeof(struct resource));
switch (boot_mem_map.map[i].type) {
case BOOT_MEM_RAM:
case BOOT_MEM_INIT_RAM:
case BOOT_MEM_ROM_DATA:
res->name = "System RAM";
break;

2
arch/mips/kernel/smtc.c
View File

@ -1130,7 +1130,7 @@ static void ipi_irq_dispatch(void)
static struct irqaction irq_ipi = {
.handler = ipi_interrupt,
.flags = IRQF_DISABLED | IRQF_PERCPU,
.flags = IRQF_PERCPU,
.name = "SMTC_IPI"
};

1
arch/mips/lantiq/irq.c
View File

@ -240,7 +240,6 @@ out:
static struct irqaction cascade = {
.handler = no_action,
.flags = IRQF_DISABLED,
.name = "cascade",
};

2
arch/mips/loongson/common/cs5536/cs5536_mfgpt.c
View File

@ -111,7 +111,7 @@ static irqreturn_t timer_interrupt(int irq, void *dev_id)
static struct irqaction irq5 = {
.handler = timer_interrupt,
.flags = IRQF_DISABLED | IRQF_NOBALANCING | IRQF_TIMER,
.flags = IRQF_NOBALANCING | IRQF_TIMER,
.name = "timer"
};

4
arch/mips/mm/Makefile
View File

@ -3,8 +3,8 @@
#
obj-y += cache.o dma-default.o extable.o fault.o \
init.o mmap.o tlbex.o tlbex-fault.o uasm.o \
page.o
gup.o init.o mmap.o page.o tlbex.o \
tlbex-fault.o uasm.o
obj-$(CONFIG_32BIT) += ioremap.o pgtable-32.o
obj-$(CONFIG_64BIT) += pgtable-64.o

315
arch/mips/mm/gup.c Normal file
View File

@ -0,0 +1,315 @@
/*
* Lockless get_user_pages_fast for MIPS
*
* Copyright (C) 2008 Nick Piggin
* Copyright (C) 2008 Novell Inc.
* Copyright (C) 2011 Ralf Baechle
*/
#include <linux/sched.h>
#include <linux/mm.h>
#include <linux/vmstat.h>
#include <linux/highmem.h>
#include <linux/swap.h>
#include <linux/hugetlb.h>
#include <asm/pgtable.h>
static inline pte_t gup_get_pte(pte_t *ptep)
{
#if defined(CONFIG_64BIT_PHYS_ADDR) && defined(CONFIG_CPU_MIPS32)
pte_t pte;
retry:
pte.pte_low = ptep->pte_low;
smp_rmb();
pte.pte_high = ptep->pte_high;
smp_rmb();
if (unlikely(pte.pte_low != ptep->pte_low))
goto retry;
return pte;
#else
return ACCESS_ONCE(*ptep);
#endif
}
static int gup_pte_range(pmd_t pmd, unsigned long addr, unsigned long end,
int write, struct page **pages, int *nr)
{
pte_t *ptep = pte_offset_map(&pmd, addr);
do {
pte_t pte = gup_get_pte(ptep);
struct page *page;
if (!pte_present(pte) ||
pte_special(pte) || (write && !pte_write(pte))) {
pte_unmap(ptep);
return 0;
}
VM_BUG_ON(!pfn_valid(pte_pfn(pte)));
page = pte_page(pte);
get_page(page);
SetPageReferenced(page);
pages[*nr] = page;
(*nr)++;
} while (ptep++, addr += PAGE_SIZE, addr != end);
pte_unmap(ptep - 1);
return 1;
}
static inline void get_head_page_multiple(struct page *page, int nr)
{
VM_BUG_ON(page != compound_head(page));
VM_BUG_ON(page_count(page) == 0);
atomic_add(nr, &page->_count);
SetPageReferenced(page);
}
static int gup_huge_pmd(pmd_t pmd, unsigned long addr, unsigned long end,
int write, struct page **pages, int *nr)
{
pte_t pte = *(pte_t *)&pmd;
struct page *head, *page;
int refs;
if (write && !pte_write(pte))
return 0;
/* hugepages are never "special" */
VM_BUG_ON(pte_special(pte));
VM_BUG_ON(!pfn_valid(pte_pfn(pte)));
refs = 0;
head = pte_page(pte);
page = head + ((addr & ~PMD_MASK) >> PAGE_SHIFT);
do {
VM_BUG_ON(compound_head(page) != head);
pages[*nr] = page;
if (PageTail(page))
get_huge_page_tail(page);
(*nr)++;
page++;
refs++;
} while (addr += PAGE_SIZE, addr != end);
get_head_page_multiple(head, refs);
return 1;
}
static int gup_pmd_range(pud_t pud, unsigned long addr, unsigned long end,
int write, struct page **pages, int *nr)
{
unsigned long next;
pmd_t *pmdp;
pmdp = pmd_offset(&pud, addr);
do {
pmd_t pmd = *pmdp;
next = pmd_addr_end(addr, end);
/*
* The pmd_trans_splitting() check below explains why
* pmdp_splitting_flush has to flush the tlb, to stop
* this gup-fast code from running while we set the
* splitting bit in the pmd. Returning zero will take
* the slow path that will call wait_split_huge_page()
* if the pmd is still in splitting state. gup-fast
* can't because it has irq disabled and
* wait_split_huge_page() would never return as the
* tlb flush IPI wouldn't run.
*/
if (pmd_none(pmd) || pmd_trans_splitting(pmd))
return 0;
if (unlikely(pmd_huge(pmd))) {
if (!gup_huge_pmd(pmd, addr, next, write, pages,nr))
return 0;
} else {
if (!gup_pte_range(pmd, addr, next, write, pages,nr))
return 0;
}
} while (pmdp++, addr = next, addr != end);
return 1;
}
static int gup_huge_pud(pud_t pud, unsigned long addr, unsigned long end,
int write, struct page **pages, int *nr)
{
pte_t pte = *(pte_t *)&pud;
struct page *head, *page;
int refs;
if (write && !pte_write(pte))
return 0;
/* hugepages are never "special" */
VM_BUG_ON(pte_special(pte));
VM_BUG_ON(!pfn_valid(pte_pfn(pte)));
refs = 0;
head = pte_page(pte);
page = head + ((addr & ~PUD_MASK) >> PAGE_SHIFT);
do {
VM_BUG_ON(compound_head(page) != head);
pages[*nr] = page;
(*nr)++;
page++;
refs++;
} while (addr += PAGE_SIZE, addr != end);
get_head_page_multiple(head, refs);
return 1;
}
static int gup_pud_range(pgd_t pgd, unsigned long addr, unsigned long end,
int write, struct page **pages, int *nr)
{
unsigned long next;
pud_t *pudp;
pudp = pud_offset(&pgd, addr);
do {
pud_t pud = *pudp;
next = pud_addr_end(addr, end);
if (pud_none(pud))
return 0;
if (unlikely(pud_huge(pud))) {
if (!gup_huge_pud(pud, addr, next, write, pages,nr))
return 0;
} else {
if (!gup_pmd_range(pud, addr, next, write, pages,nr))
return 0;
}
} while (pudp++, addr = next, addr != end);
return 1;
}
/*
* Like get_user_pages_fast() except its IRQ-safe in that it won't fall
* back to the regular GUP.
*/
int __get_user_pages_fast(unsigned long start, int nr_pages, int write,
struct page **pages)
{
struct mm_struct *mm = current->mm;
unsigned long addr, len, end;
unsigned long next;
unsigned long flags;
pgd_t *pgdp;
int nr = 0;
start &= PAGE_MASK;
addr = start;
len = (unsigned long) nr_pages << PAGE_SHIFT;
end = start + len;
if (unlikely(!access_ok(write ? VERIFY_WRITE : VERIFY_READ,
(void __user *)start, len)))
return 0;
/*
* XXX: batch / limit 'nr', to avoid large irq off latency
* needs some instrumenting to determine the common sizes used by
* important workloads (eg. DB2), and whether limiting the batch
* size will decrease performance.
*
* It seems like we're in the clear for the moment. Direct-IO is
* the main guy that batches up lots of get_user_pages, and even
* they are limited to 64-at-a-time which is not so many.
*/
/*
* This doesn't prevent pagetable teardown, but does prevent
* the pagetables and pages from being freed.
*
* So long as we atomically load page table pointers versus teardown,
* we can follow the address down to the page and take a ref on it.
*/
local_irq_save(flags);
pgdp = pgd_offset(mm, addr);
do {
pgd_t pgd = *pgdp;
next = pgd_addr_end(addr, end);
if (pgd_none(pgd))
break;
if (!gup_pud_range(pgd, addr, next, write, pages, &nr))
break;
} while (pgdp++, addr = next, addr != end);
local_irq_restore(flags);
return nr;
}
/**
* get_user_pages_fast() - pin user pages in memory
* @start: starting user address
* @nr_pages: number of pages from start to pin
* @write: whether pages will be written to
* @pages: array that receives pointers to the pages pinned.
* Should be at least nr_pages long.
*
* Attempt to pin user pages in memory without taking mm->mmap_sem.
* If not successful, it will fall back to taking the lock and
* calling get_user_pages().
*
* Returns number of pages pinned. This may be fewer than the number
* requested. If nr_pages is 0 or negative, returns 0. If no pages
* were pinned, returns -errno.
*/
int get_user_pages_fast(unsigned long start, int nr_pages, int write,
struct page **pages)
{
struct mm_struct *mm = current->mm;
unsigned long addr, len, end;
unsigned long next;
pgd_t *pgdp;
int ret, nr = 0;
start &= PAGE_MASK;
addr = start;
len = (unsigned long) nr_pages << PAGE_SHIFT;
end = start + len;
if (end < start)
goto slow_irqon;
/* XXX: batch / limit 'nr' */
local_irq_disable();
pgdp = pgd_offset(mm, addr);
do {
pgd_t pgd = *pgdp;
next = pgd_addr_end(addr, end);
if (pgd_none(pgd))
goto slow;
if (!gup_pud_range(pgd, addr, next, write, pages, &nr))
goto slow;
} while (pgdp++, addr = next, addr != end);
local_irq_enable();
VM_BUG_ON(nr != (end - start) >> PAGE_SHIFT);
return nr;
slow:
local_irq_enable();
slow_irqon:
/* Try to get the remaining pages with get_user_pages */
start += nr << PAGE_SHIFT;
pages += nr;
down_read(&mm->mmap_sem);
ret = get_user_pages(current, mm, start,
(end - start) >> PAGE_SHIFT,
write, 0, pages, NULL);
up_read(&mm->mmap_sem);
/* Have to be a bit careful with return values */
if (nr > 0) {
if (ret < 0)
ret = nr;
else
ret += nr;
}
return ret;
}

9
arch/mips/mm/init.c
View File

@ -304,9 +304,14 @@ int page_is_ram(unsigned long pagenr)
for (i = 0; i < boot_mem_map.nr_map; i++) {
unsigned long addr, end;
if (boot_mem_map.map[i].type != BOOT_MEM_RAM)
switch (boot_mem_map.map[i].type) {
case BOOT_MEM_RAM:
case BOOT_MEM_INIT_RAM:
break;
default:
/* not usable memory */
continue;
}
addr = PFN_UP(boot_mem_map.map[i].addr);
end = PFN_DOWN(boot_mem_map.map[i].addr +
@ -379,7 +384,7 @@ void __init mem_init(void)
reservedpages = ram = 0;
for (tmp = 0; tmp < max_low_pfn; tmp++)
if (page_is_ram(tmp)) {
if (page_is_ram(tmp) && pfn_valid(tmp)) {
ram++;
if (PageReserved(pfn_to_page(tmp)))
reservedpages++;

67
arch/mips/mm/tlb-r4k.c
View File

@ -121,22 +121,30 @@ void local_flush_tlb_range(struct vm_area_struct *vma, unsigned long start,
if (cpu_context(cpu, mm) != 0) {
unsigned long size, flags;
int huge = is_vm_hugetlb_page(vma);
ENTER_CRITICAL(flags);
size = (end - start + (PAGE_SIZE - 1)) >> PAGE_SHIFT;
size = (size + 1) >> 1;
if (huge) {
start = round_down(start, HPAGE_SIZE);
end = round_up(end, HPAGE_SIZE);
size = (end - start) >> HPAGE_SHIFT;
} else {
start = round_down(start, PAGE_SIZE << 1);
end = round_up(end, PAGE_SIZE << 1);
size = (end - start) >> (PAGE_SHIFT + 1);
}
if (size <= current_cpu_data.tlbsize/2) {
int oldpid = read_c0_entryhi();
int newpid = cpu_asid(cpu, mm);
start &= (PAGE_MASK << 1);
end += ((PAGE_SIZE << 1) - 1);
end &= (PAGE_MASK << 1);
while (start < end) {
int idx;
write_c0_entryhi(start | newpid);
start += (PAGE_SIZE << 1);
if (huge)
start += HPAGE_SIZE;
else
start += (PAGE_SIZE << 1);
mtc0_tlbw_hazard();
tlb_probe();
tlb_probe_hazard();
@ -369,51 +377,6 @@ void add_wired_entry(unsigned long entrylo0, unsigned long entrylo1,
EXIT_CRITICAL(flags);
}
/*
* Used for loading TLB entries before trap_init() has started, when we
* don't actually want to add a wired entry which remains throughout the
* lifetime of the system
*/
static int temp_tlb_entry __cpuinitdata;
__init int add_temporary_entry(unsigned long entrylo0, unsigned long entrylo1,
unsigned long entryhi, unsigned long pagemask)
{
int ret = 0;
unsigned long flags;
unsigned long wired;
unsigned long old_pagemask;
unsigned long old_ctx;
ENTER_CRITICAL(flags);
/* Save old context and create impossible VPN2 value */
old_ctx = read_c0_entryhi();
old_pagemask = read_c0_pagemask();
wired = read_c0_wired();
if (--temp_tlb_entry < wired) {
printk(KERN_WARNING
"No TLB space left for add_temporary_entry\n");
ret = -ENOSPC;
goto out;
}
write_c0_index(temp_tlb_entry);
write_c0_pagemask(pagemask);
write_c0_entryhi(entryhi);
write_c0_entrylo0(entrylo0);
write_c0_entrylo1(entrylo1);
mtc0_tlbw_hazard();
tlb_write_indexed();
tlbw_use_hazard();
write_c0_entryhi(old_ctx);
write_c0_pagemask(old_pagemask);
out:
EXIT_CRITICAL(flags);
return ret;
}
static int __cpuinitdata ntlb;
static int __init set_ntlb(char *str)
{
@ -451,8 +414,6 @@ void __cpuinit tlb_init(void)
write_c0_pagegrain(pg);
}
temp_tlb_entry = current_cpu_data.tlbsize - 1;
/* From this point on the ARC firmware is dead. */
local_flush_tlb_all();

4
arch/mips/mti-malta/malta-int.c
View File

@ -322,13 +322,13 @@ static irqreturn_t ipi_call_interrupt(int irq, void *dev_id)
static struct irqaction irq_resched = {
.handler = ipi_resched_interrupt,
.flags = IRQF_DISABLED|IRQF_PERCPU,
.flags = IRQF_PERCPU,
.name = "IPI_resched"
};
static struct irqaction irq_call = {
.handler = ipi_call_interrupt,
.flags = IRQF_DISABLED|IRQF_PERCPU,
.flags = IRQF_PERCPU,
.name = "IPI_call"
};
#endif /* CONFIG_MIPS_MT_SMP */

2
arch/mips/pci/ops-pmcmsp.c
View File

@ -405,7 +405,7 @@ int msp_pcibios_config_access(unsigned char access_type,
if (pciirqflag == 0) {
ret = request_irq(MSP_INT_PCI,/* Hardcoded internal MSP7120 wiring */
bpci_interrupt,
IRQF_SHARED | IRQF_DISABLED,
IRQF_SHARED,
"PMC MSP PCI Host",
preg);
if (ret != 0)

2
arch/mips/pci/ops-tx3927.c
View File

@ -225,7 +225,7 @@ void __init tx3927_setup_pcierr_irq(void)
{
if (request_irq(TXX9_IRQ_BASE + TX3927_IR_PCI,
tx3927_pcierr_interrupt,
IRQF_DISABLED, "PCI error",
0, "PCI error",
(void *)TX3927_PCIC_REG))
printk(KERN_WARNING "Failed to request irq for PCIERR\n");
}

2
arch/mips/pci/pci-tx4927.c
View File

@ -85,7 +85,7 @@ void __init tx4927_setup_pcierr_irq(void)
{
if (request_irq(TXX9_IRQ_BASE + TX4927_IR_PCIERR,
tx4927_pcierr_interrupt,
IRQF_DISABLED, "PCI error",
0, "PCI error",
(void *)TX4927_PCIC_REG))
printk(KERN_WARNING "Failed to request irq for PCIERR\n");
}

2
arch/mips/pci/pci-tx4938.c
View File

@ -136,7 +136,7 @@ void __init tx4938_setup_pcierr_irq(void)
{
if (request_irq(TXX9_IRQ_BASE + TX4938_IR_PCIERR,
tx4927_pcierr_interrupt,
IRQF_DISABLED, "PCI error",
0, "PCI error",
(void *)TX4927_PCIC_REG))
printk(KERN_WARNING "Failed to request irq for PCIERR\n");
}

2
arch/mips/pci/pci-tx4939.c
View File

@ -101,7 +101,7 @@ void __init tx4939_setup_pcierr_irq(void)
{
if (request_irq(TXX9_IRQ_BASE + TX4939_IR_PCIERR,
tx4927_pcierr_interrupt,
IRQF_DISABLED, "PCI error",
0, "PCI error",
(void *)TX4939_PCIC_REG))
pr_warning("Failed to request irq for PCIERR\n");
}

29
arch/mips/pci/pci.c
View File

@ -4,8 +4,11 @@
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version.
*
* Copyright (C) 2003, 04 Ralf Baechle (ralf@linux-mips.org)
* Copyright (C) 2003, 04, 11 Ralf Baechle (ralf@linux-mips.org)
* Copyright (C) 2011 Wind River Systems,
* written by Ralf Baechle (ralf@linux-mips.org)
*/
#include <linux/bug.h>
#include <linux/kernel.h>
#include <linux/mm.h>
#include <linux/bootmem.h>
@ -14,6 +17,8 @@
#include <linux/types.h>
#include <linux/pci.h>
#include <asm/cpu-info.h>
/*
* Indicate whether we respect the PCI setup left by the firmware.
*
@ -150,10 +155,32 @@ out:
"Skipping PCI bus scan due to resource conflict\n");
}
static void __init pcibios_set_cache_line_size(void)
{
struct cpuinfo_mips *c = &current_cpu_data;
unsigned int lsize;
/*
* Set PCI cacheline size to that of the highest level in the
* cache hierarchy.
*/
lsize = c->dcache.linesz;
lsize = c->scache.linesz ? : lsize;
lsize = c->tcache.linesz ? : lsize;
BUG_ON(!lsize);
pci_dfl_cache_line_size = lsize >> 2;
pr_debug("PCI: pci_cache_line_size set to %d bytes\n", lsize);
}
static int __init pcibios_init(void)
{
struct pci_controller *hose;
pcibios_set_cache_line_size();
/* Scan all of the recorded PCI controllers. */
for (hose = hose_head; hose; hose = hose->next)
pcibios_scanbus(hose);

2
arch/mips/pmc-sierra/msp71xx/msp_hwbutton.c
View File

@ -149,7 +149,7 @@ static int msp_hwbutton_register(struct hwbutton_interrupt *hirq)
CIC_EXT_SET_ACTIVE_HI(cic_ext, hirq->eirq);
*CIC_EXT_CFG_REG = cic_ext;
return request_irq(hirq->irq, hwbutton_handler, IRQF_DISABLED,
return request_irq(hirq->irq, hwbutton_handler, 0,
hirq->name, hirq);
}

4
arch/mips/pmc-sierra/msp71xx/msp_smp.c
View File

@ -51,13 +51,13 @@ static irqreturn_t ipi_call_interrupt(int irq, void *dev_id)
static struct irqaction irq_resched = {
.handler = ipi_resched_interrupt,
.flags = IRQF_DISABLED | IRQF_PERCPU,
.flags = IRQF_PERCPU,
.name = "IPI_resched"
};
static struct irqaction irq_call = {
.handler = ipi_call_interrupt,
.flags = IRQF_DISABLED | IRQF_PERCPU,
.flags = IRQF_PERCPU,
.name = "IPI_call"
};

4
arch/mips/pnx8550/common/int.c
View File

@ -167,13 +167,13 @@ static struct irq_chip level_irq_type = {
static struct irqaction gic_action = {
.handler = no_action,
.flags = IRQF_DISABLED | IRQF_NO_THREAD,
.flags = IRQF_NO_THREAD,
.name = "GIC",
};
static struct irqaction timer_action = {
.handler = no_action,
.flags = IRQF_DISABLED | IRQF_TIMER,
.flags = IRQF_TIMER,
.name = "Timer",
};

4
arch/mips/pnx8550/common/time.c
View File

@ -59,7 +59,7 @@ static irqreturn_t pnx8xxx_timer_interrupt(int irq, void *dev_id)
static struct irqaction pnx8xxx_timer_irq = {
.handler = pnx8xxx_timer_interrupt,
.flags = IRQF_DISABLED | IRQF_PERCPU | IRQF_TIMER,
.flags = IRQF_PERCPU | IRQF_TIMER,
.name = "pnx8xxx_timer",
};
@ -72,7 +72,7 @@ static irqreturn_t monotonic_interrupt(int irq, void *dev_id)
static struct irqaction monotonic_irqaction = {
.handler = monotonic_interrupt,
.flags = IRQF_DISABLED | IRQF_TIMER,
.flags = IRQF_TIMER,
.name = "Monotonic timer",
};

2
arch/mips/sgi-ip22/Makefile
View File

@ -4,7 +4,7 @@
#
obj-y += ip22-mc.o ip22-hpc.o ip22-int.o ip22-time.o ip22-nvram.o \
ip22-platform.o ip22-reset.o ip22-setup.o
ip22-platform.o ip22-reset.o ip22-setup.o ip22-gio.o
obj-$(CONFIG_SGI_IP22) += ip22-berr.o
obj-$(CONFIG_SGI_IP28) += ip28-berr.o

428
arch/mips/sgi-ip22/ip22-gio.c Normal file
View File

@ -0,0 +1,428 @@
#include <linux/export.h>
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/slab.h>
#include <asm/addrspace.h>
#include <asm/paccess.h>
#include <asm/gio_device.h>
#include <asm/sgi/gio.h>
#include <asm/sgi/hpc3.h>
#include <asm/sgi/mc.h>
#include <asm/sgi/ip22.h>
static struct bus_type gio_bus_type;
static struct {
const char *name;
__u8 id;
} gio_name_table[] = {
{ .name = "SGI Impact", .id = 0x10 },
{ .name = "Phobos G160", .id = 0x35 },
/* fake IDs */
{ .name = "SGI Newport", .id = 0x7e },
{ .name = "SGI GR2/GR3", .id = 0x7f },
};
static struct device gio_bus = {
.init_name = "gio",
};
/**
* gio_match_device - Tell if an of_device structure has a matching
* gio_match structure
* @ids: array of of device match structures to search in
* @dev: the of device structure to match against
*
* Used by a driver to check whether an of_device present in the
* system is in its list of supported devices.
*/
const struct gio_device_id *gio_match_device(const struct gio_device_id *match,
const struct gio_device *dev)
{
const struct gio_device_id *ids;
for (ids = match; ids->id != 0xff; ids++)
if (ids->id == dev->id.id)
return ids;
return NULL;
}
EXPORT_SYMBOL_GPL(gio_match_device);
struct gio_device *gio_dev_get(struct gio_device *dev)
{
struct device *tmp;
if (!dev)
return NULL;
tmp = get_device(&dev->dev);
if (tmp)
return to_gio_device(tmp);
else
return NULL;
}
EXPORT_SYMBOL_GPL(gio_dev_get);
void gio_dev_put(struct gio_device *dev)
{
if (dev)
put_device(&dev->dev);
}
EXPORT_SYMBOL_GPL(gio_dev_put);
/**
* gio_release_dev - free an gio device structure when all users of it are finished.
* @dev: device that's been disconnected
*
* Will be called only by the device core when all users of this gio device are
* done.
*/
void gio_release_dev(struct device *dev)
{
struct gio_device *giodev;
giodev = to_gio_device(dev);
kfree(giodev);
}
EXPORT_SYMBOL_GPL(gio_release_dev);
int gio_device_register(struct gio_device *giodev)
{
giodev->dev.bus = &gio_bus_type;
giodev->dev.parent = &gio_bus;
return device_register(&giodev->dev);
}
EXPORT_SYMBOL_GPL(gio_device_register);
void gio_device_unregister(struct gio_device *giodev)
{
device_unregister(&giodev->dev);
}
EXPORT_SYMBOL_GPL(gio_device_unregister);
static int gio_bus_match(struct device *dev, struct device_driver *drv)
{
struct gio_device *gio_dev = to_gio_device(dev);
struct gio_driver *gio_drv = to_gio_driver(drv);
return gio_match_device(gio_drv->id_table, gio_dev) != NULL;
}
static int gio_device_probe(struct device *dev)
{
int error = -ENODEV;
struct gio_driver *drv;
struct gio_device *gio_dev;
const struct gio_device_id *match;
drv = to_gio_driver(dev->driver);
gio_dev = to_gio_device(dev);
if (!drv->probe)
return error;
gio_dev_get(gio_dev);
match = gio_match_device(drv->id_table, gio_dev);
if (match)
error = drv->probe(gio_dev, match);
if (error)
gio_dev_put(gio_dev);
return error;
}
static int gio_device_remove(struct device *dev)
{
struct gio_device *gio_dev = to_gio_device(dev);
struct gio_driver *drv = to_gio_driver(dev->driver);
if (dev->driver && drv->remove)
drv->remove(gio_dev);
return 0;
}
static int gio_device_suspend(struct device *dev, pm_message_t state)
{
struct gio_device *gio_dev = to_gio_device(dev);
struct gio_driver *drv = to_gio_driver(dev->driver);
int error = 0;
if (dev->driver && drv->suspend)
error = drv->suspend(gio_dev, state);
return error;
}
static int gio_device_resume(struct device *dev)
{
struct gio_device *gio_dev = to_gio_device(dev);
struct gio_driver *drv = to_gio_driver(dev->driver);
int error = 0;
if (dev->driver && drv->resume)
error = drv->resume(gio_dev);
return error;
}
static void gio_device_shutdown(struct device *dev)
{
struct gio_device *gio_dev = to_gio_device(dev);
struct gio_driver *drv = to_gio_driver(dev->driver);
if (dev->driver && drv->shutdown)
drv->shutdown(gio_dev);
}
static ssize_t modalias_show(struct device *dev, struct device_attribute *a,
char *buf)
{
struct gio_device *gio_dev = to_gio_device(dev);
int len = snprintf(buf, PAGE_SIZE, "gio:%x\n", gio_dev->id.id);
return (len >= PAGE_SIZE) ? (PAGE_SIZE - 1) : len;
}
static ssize_t name_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct gio_device *giodev;
giodev = to_gio_device(dev);
return sprintf(buf, "%s", giodev->name);
}
static ssize_t id_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct gio_device *giodev;
giodev = to_gio_device(dev);
return sprintf(buf, "%x", giodev->id.id);
}
static struct device_attribute gio_dev_attrs[] = {
__ATTR_RO(modalias),
__ATTR_RO(name),
__ATTR_RO(id),
__ATTR_NULL,
};
static int gio_device_uevent(struct device *dev, struct kobj_uevent_env *env)
{
struct gio_device *gio_dev = to_gio_device(dev);
add_uevent_var(env, "MODALIAS=gio:%x", gio_dev->id.id);
return 0;
}
int gio_register_driver(struct gio_driver *drv)
{
/* initialize common driver fields */
if (!drv->driver.name)
drv->driver.name = drv->name;
if (!drv->driver.owner)
drv->driver.owner = drv->owner;
drv->driver.bus = &gio_bus_type;
/* register with core */
return driver_register(&drv->driver);
}
EXPORT_SYMBOL_GPL(gio_register_driver);
void gio_unregister_driver(struct gio_driver *drv)
{
driver_unregister(&drv->driver);
}
EXPORT_SYMBOL_GPL(gio_unregister_driver);
void gio_set_master(struct gio_device *dev)
{
u32 tmp = sgimc->giopar;
switch (dev->slotno) {
case 0:
tmp |= SGIMC_GIOPAR_MASTERGFX;
break;
case 1:
tmp |= SGIMC_GIOPAR_MASTEREXP0;
break;
case 2:
tmp |= SGIMC_GIOPAR_MASTEREXP1;
break;
}
sgimc->giopar = tmp;
}
EXPORT_SYMBOL_GPL(gio_set_master);
void ip22_gio_set_64bit(int slotno)
{
u32 tmp = sgimc->giopar;
switch (slotno) {
case 0:
tmp |= SGIMC_GIOPAR_GFX64;
break;
case 1:
tmp |= SGIMC_GIOPAR_EXP064;
break;
case 2:
tmp |= SGIMC_GIOPAR_EXP164;
break;
}
sgimc->giopar = tmp;
}
static int ip22_gio_id(unsigned long addr, u32 *res)
{
u8 tmp8;
u8 tmp16;
u32 tmp32;
u8 *ptr8;
u16 *ptr16;
u32 *ptr32;
ptr32 = (void *)CKSEG1ADDR(addr);
if (!get_dbe(tmp32, ptr32)) {
/*
* We got no DBE, but this doesn't mean anything.
* If GIO is pipelined (which can't be disabled
* for GFX slot) we don't get a DBE, but we see
* the transfer size as data. So we do an 8bit
* and a 16bit access and check whether the common
* data matches
*/
ptr8 = (void *)CKSEG1ADDR(addr + 3);
get_dbe(tmp8, ptr8);
ptr16 = (void *)CKSEG1ADDR(addr + 2);
get_dbe(tmp16, ptr16);
if (tmp8 == (tmp16 & 0xff) &&
tmp8 == (tmp32 & 0xff) &&
tmp16 == (tmp32 & 0xffff)) {
*res = tmp32;
return 1;
}
}
return 0; /* nothing here */
}
#define HQ2_MYSTERY_OFFS 0x6A07C
#define NEWPORT_USTATUS_OFFS 0xF133C
static int ip22_is_gr2(unsigned long addr)
{
u32 tmp;
u32 *ptr;
/* HQ2 only allows 32bit accesses */
ptr = (void *)CKSEG1ADDR(addr + HQ2_MYSTERY_OFFS);
if (!get_dbe(tmp, ptr)) {
if (tmp == 0xdeadbeef)
return 1;
}
return 0;
}
static void ip22_check_gio(int slotno, unsigned long addr)
{
const char *name = "Unknown";
struct gio_device *gio_dev;
u32 tmp;
__u8 id;
int i;
/* first look for GR2/GR3 by checking mystery register */
if (ip22_is_gr2(addr))
tmp = 0x7f;
else {
if (!ip22_gio_id(addr, &tmp)) {
/*
* no GIO signature at start address of slot, but
* Newport doesn't have one, so let's check usea
* status register
*/
if (ip22_gio_id(addr + NEWPORT_USTATUS_OFFS, &tmp))
tmp = 0x7e;
else
tmp = 0;
}
}
if (tmp) {
id = GIO_ID(tmp);
if (tmp & GIO_32BIT_ID) {
if (tmp & GIO_64BIT_IFACE)
ip22_gio_set_64bit(slotno);
}
for (i = 0; i < ARRAY_SIZE(gio_name_table); i++) {
if (id == gio_name_table[i].id) {
name = gio_name_table[i].name;
break;
}
}
printk(KERN_INFO "GIO: slot %d : %s (id %x)\n",
slotno, name, id);
gio_dev = kzalloc(sizeof *gio_dev, GFP_KERNEL);
gio_dev->name = name;
gio_dev->slotno = slotno;
gio_dev->id.id = id;
gio_dev->resource.start = addr;
gio_dev->resource.end = addr + 0x3fffff;
gio_dev->resource.flags = IORESOURCE_MEM;
dev_set_name(&gio_dev->dev, "%d", slotno);
gio_device_register(gio_dev);
} else
printk(KERN_INFO "GIO: slot %d : Empty\n", slotno);
}
static struct bus_type gio_bus_type = {
.name = "gio",
.dev_attrs = gio_dev_attrs,
.match = gio_bus_match,
.probe = gio_device_probe,
.remove = gio_device_remove,
.suspend = gio_device_suspend,
.resume = gio_device_resume,
.shutdown = gio_device_shutdown,
.uevent = gio_device_uevent,
};
static struct resource gio_bus_resource = {
.start = GIO_SLOT_GFX_BASE,
.end = GIO_SLOT_GFX_BASE + 0x9fffff,
.name = "GIO Bus",
.flags = IORESOURCE_MEM,
};
int __init ip22_gio_init(void)
{
unsigned int pbdma __maybe_unused;
int ret;
ret = device_register(&gio_bus);
if (ret)
return ret;
ret = bus_register(&gio_bus_type);
if (!ret) {
request_resource(&iomem_resource, &gio_bus_resource);
printk(KERN_INFO "GIO: Probing bus...\n");
if (ip22_is_fullhouse() ||
!get_dbe(pbdma, (unsigned int *)&hpc3c1->pbdma[1])) {
/* Indigo2 and ChallengeS */
ip22_check_gio(0, GIO_SLOT_GFX_BASE);
ip22_check_gio(1, GIO_SLOT_EXP0_BASE);
} else {
/* Indy */
ip22_check_gio(0, GIO_SLOT_GFX_BASE);
ip22_check_gio(1, GIO_SLOT_EXP0_BASE);
ip22_check_gio(2, GIO_SLOT_EXP1_BASE);
}
} else
device_unregister(&gio_bus);
return ret;
}
subsys_initcall(ip22_gio_init);

10
arch/mips/sgi-ip22/ip22-int.c
View File

@ -155,32 +155,32 @@ static void __irq_entry indy_buserror_irq(void)
static struct irqaction local0_cascade = {
.handler = no_action,
.flags = IRQF_DISABLED | IRQF_NO_THREAD,
.flags = IRQF_NO_THREAD,
.name = "local0 cascade",
};
static struct irqaction local1_cascade = {
.handler = no_action,
.flags = IRQF_DISABLED | IRQF_NO_THREAD,
.flags = IRQF_NO_THREAD,
.name = "local1 cascade",
};
static struct irqaction buserr = {
.handler = no_action,
.flags = IRQF_DISABLED | IRQF_NO_THREAD,
.flags = IRQF_NO_THREAD,
.name = "Bus Error",
};
static struct irqaction map0_cascade = {
.handler = no_action,
.flags = IRQF_DISABLED | IRQF_NO_THREAD,
.flags = IRQF_NO_THREAD,
.name = "mapable0 cascade",
};
#ifdef USE_LIO3_IRQ
static struct irqaction map1_cascade = {
.handler = no_action,
.flags = IRQF_DISABLED | IRQF_NO_THREAD,
.flags = IRQF_NO_THREAD,
.name = "mapable1 cascade",
};
#define SGI_INTERRUPTS SGINT_END

10
arch/mips/sgi-ip22/ip22-mc.c
View File

@ -139,11 +139,11 @@ void __init sgimc_init(void)
* zero.
*/
/* don't touch parity settings for IP28 */
#ifndef CONFIG_SGI_IP28
tmp = sgimc->cpuctrl0;
tmp |= (SGIMC_CCTRL0_EPERRGIO | SGIMC_CCTRL0_EPERRMEM |
SGIMC_CCTRL0_R4KNOCHKPARR);
#ifndef CONFIG_SGI_IP28
tmp |= SGIMC_CCTRL0_EPERRGIO | SGIMC_CCTRL0_EPERRMEM;
#endif
tmp |= SGIMC_CCTRL0_R4KNOCHKPARR;
sgimc->cpuctrl0 = tmp;
/* Step 3: Setup the MC write buffer depth, this is controlled
@ -178,7 +178,8 @@ void __init sgimc_init(void)
*/
/* First the basic invariants across all GIO64 implementations. */
tmp = SGIMC_GIOPAR_HPC64; /* All 1st HPC's interface at 64bits */
tmp = sgimc->giopar & SGIMC_GIOPAR_GFX64; /* keep gfx 64bit settings */
tmp |= SGIMC_GIOPAR_HPC64; /* All 1st HPC's interface at 64bits */
tmp |= SGIMC_GIOPAR_ONEBUS; /* Only one physical GIO bus exists */
if (ip22_is_fullhouse()) {
@ -193,7 +194,6 @@ void __init sgimc_init(void)
tmp |= SGIMC_GIOPAR_PLINEEXP0; /* exp[01] pipelined */
tmp |= SGIMC_GIOPAR_PLINEEXP1;
tmp |= SGIMC_GIOPAR_MASTEREISA; /* EISA masters */
tmp |= SGIMC_GIOPAR_GFX64; /* GFX at 64 bits */
}
} else {
/* Guiness specific settings. */

21
arch/mips/sgi-ip22/ip22-setup.c
View File

@ -26,9 +26,6 @@
#include <asm/sgi/hpc3.h>
#include <asm/sgi/ip22.h>
unsigned long sgi_gfxaddr;
EXPORT_SYMBOL_GPL(sgi_gfxaddr);
extern void ip22_be_init(void) __init;
void __init plat_mem_setup(void)
@ -78,22 +75,4 @@ void __init plat_mem_setup(void)
prom_flags |= PROM_FLAG_USE_AS_CONSOLE;
add_preferred_console("arc", 0, NULL);
}
#if defined(CONFIG_VT) && defined(CONFIG_SGI_NEWPORT_CONSOLE)
{
ULONG *gfxinfo;
ULONG * (*__vec)(void) = (void *) (long)
*((_PULONG *)(long)((PROMBLOCK)->pvector + 0x20));
gfxinfo = __vec();
sgi_gfxaddr = ((gfxinfo[1] >= 0xa0000000
&& gfxinfo[1] <= 0xc0000000)
? gfxinfo[1] - 0xa0000000 : 0);
/* newport addresses? */
if (sgi_gfxaddr == 0x1f0f0000 || sgi_gfxaddr == 0x1f4f0000) {
conswitchp = &newport_con;
}
}
#endif
}

2
arch/mips/sgi-ip27/ip27-irq.c
View File

@ -116,7 +116,7 @@ static int ms1bit(unsigned long x)
}
/*
* This code is unnecessarily complex, because we do IRQF_DISABLED
* This code is unnecessarily complex, because we do
* intr enabling. Basically, once we grab the set of intrs we need
* to service, we must mask _all_ these interrupts; firstly, to make
* sure the same intr does not intr again, causing recursion that

2
arch/mips/sgi-ip27/ip27-timer.c
View File

@ -91,7 +91,7 @@ static irqreturn_t hub_rt_counter_handler(int irq, void *dev_id)
struct irqaction hub_rt_irqaction = {
.handler = hub_rt_counter_handler,
.flags = IRQF_DISABLED | IRQF_PERCPU | IRQF_TIMER,
.flags = IRQF_PERCPU | IRQF_TIMER,
.name = "hub-rt",
};

2
arch/mips/sgi-ip32/ip32-irq.c
View File

@ -113,13 +113,11 @@ extern irqreturn_t crime_cpuerr_intr(int irq, void *dev_id);
static struct irqaction memerr_irq = {
.handler = crime_memerr_intr,
.flags = IRQF_DISABLED,
.name = "CRIME memory error",
};
static struct irqaction cpuerr_irq = {
.handler = crime_cpuerr_intr,
.flags = IRQF_DISABLED,
.name = "CRIME CPU error",
};

2
arch/mips/sni/irq.c
View File

@ -42,7 +42,7 @@ static irqreturn_t sni_isa_irq_handler(int dummy, void *p)
struct irqaction sni_isa_irq = {
.handler = sni_isa_irq_handler,
.name = "ISA",
.flags = IRQF_SHARED | IRQF_DISABLED
.flags = IRQF_SHARED
};
/*

2
arch/mips/sni/time.c
View File

@ -68,7 +68,7 @@ static irqreturn_t a20r_interrupt(int irq, void *dev_id)
static struct irqaction a20r_irqaction = {
.handler = a20r_interrupt,
.flags = IRQF_DISABLED | IRQF_PERCPU | IRQF_TIMER,
.flags = IRQF_PERCPU | IRQF_TIMER,
.name = "a20r-timer",
};

2
arch/mips/txx9/generic/pci.c
View File

@ -262,7 +262,7 @@ txx9_i8259_irq_setup(int irq)
int err;
init_i8259_irqs();
err = request_irq(irq, &i8259_interrupt, IRQF_DISABLED|IRQF_SHARED,
err = request_irq(irq, &i8259_interrupt, IRQF_SHARED,
"cascade(i8259)", (void *)(long)irq);
if (!err)
printk(KERN_INFO "PCI-ISA bridge PIC (irq %d)\n", irq);

63
drivers/video/console/newport_con.c
View File

@ -25,14 +25,13 @@
#include <asm/system.h>
#include <asm/page.h>
#include <asm/pgtable.h>
#include <asm/gio_device.h>
#include <video/newport.h>
#include <linux/linux_logo.h>
#include <linux/font.h>
extern unsigned long sgi_gfxaddr;
#define FONT_DATA ((unsigned char *)font_vga_8x16.data)
/* borrowed from fbcon.c */
@ -304,12 +303,6 @@ static const char *newport_startup(void)
{
int i;
if (!sgi_gfxaddr)
return NULL;
if (!npregs)
npregs = (struct newport_regs *)/* ioremap cannot fail */
ioremap(sgi_gfxaddr, sizeof(struct newport_regs));
npregs->cset.config = NPORT_CFG_GD0;
if (newport_wait(npregs))
@ -743,26 +736,58 @@ const struct consw newport_con = {
.con_save_screen = DUMMY
};
#ifdef MODULE
static int __init newport_console_init(void)
static int newport_probe(struct gio_device *dev,
const struct gio_device_id *id)
{
if (!sgi_gfxaddr)
return 0;
unsigned long newport_addr;
if (!npregs)
npregs = (struct newport_regs *)/* ioremap cannot fail */
ioremap(sgi_gfxaddr, sizeof(struct newport_regs));
if (!dev->resource.start)
return -EINVAL;
if (npregs)
return -EBUSY; /* we only support one Newport as console */
newport_addr = dev->resource.start + 0xF0000;
if (!request_mem_region(newport_addr, 0x10000, "Newport"))
return -ENODEV;
npregs = (struct newport_regs *)/* ioremap cannot fail */
ioremap(newport_addr, sizeof(struct newport_regs));
return take_over_console(&newport_con, 0, MAX_NR_CONSOLES - 1, 1);
}
module_init(newport_console_init);
static void __exit newport_console_exit(void)
static void newport_remove(struct gio_device *dev)
{
give_up_console(&newport_con);
iounmap((void *)npregs);
}
static struct gio_device_id newport_ids[] = {
{ .id = 0x7e },
{ .id = 0xff }
};
MODULE_ALIAS("gio:7e");
static struct gio_driver newport_driver = {
.name = "newport",
.id_table = newport_ids,
.probe = newport_probe,
.remove = newport_remove,
};
int __init newport_console_init(void)
{
return gio_register_driver(&newport_driver);
}
void __exit newport_console_exit(void)
{
gio_unregister_driver(&newport_driver);
}
module_init(newport_console_init);
module_exit(newport_console_exit);
#endif
MODULE_LICENSE("GPL");