summaryrefslogtreecommitdiff
path: root/arch
diff options
context:
space:
mode:
Diffstat (limited to 'arch')
-rw-r--r--arch/sparc/include/asm/page_32.h12
-rw-r--r--arch/sparc/include/asm/pgalloc_32.h11
-rw-r--r--arch/sparc/include/asm/pgtable_32.h40
-rw-r--r--arch/sparc/include/asm/pgtsrmmu.h36
-rw-r--r--arch/sparc/include/asm/viking.h5
-rw-r--r--arch/sparc/kernel/cpumap.c2
-rw-r--r--arch/sparc/kernel/ds.c8
-rw-r--r--arch/sparc/kernel/head_32.S8
-rw-r--r--arch/sparc/kernel/pci.c2
-rw-r--r--arch/sparc/kernel/ptrace_32.c233
-rw-r--r--arch/sparc/kernel/ptrace_64.c17
-rw-r--r--arch/sparc/kernel/sys_sparc32.c1
-rw-r--r--arch/sparc/kernel/vio.c2
-rw-r--r--arch/sparc/mm/hypersparc.S3
-rw-r--r--arch/sparc/mm/init_64.c10
-rw-r--r--arch/sparc/mm/srmmu.c106
-rw-r--r--arch/sparc/mm/viking.S5
17 files changed, 212 insertions, 289 deletions
diff --git a/arch/sparc/include/asm/page_32.h b/arch/sparc/include/asm/page_32.h
index 478260002836..fff8861df107 100644
--- a/arch/sparc/include/asm/page_32.h
+++ b/arch/sparc/include/asm/page_32.h
@@ -54,7 +54,7 @@ extern struct sparc_phys_banks sp_banks[SPARC_PHYS_BANKS+1];
*/
typedef struct { unsigned long pte; } pte_t;
typedef struct { unsigned long iopte; } iopte_t;
-typedef struct { unsigned long pmdv[16]; } pmd_t;
+typedef struct { unsigned long pmd; } pmd_t;
typedef struct { unsigned long pgd; } pgd_t;
typedef struct { unsigned long ctxd; } ctxd_t;
typedef struct { unsigned long pgprot; } pgprot_t;
@@ -62,7 +62,7 @@ typedef struct { unsigned long iopgprot; } iopgprot_t;
#define pte_val(x) ((x).pte)
#define iopte_val(x) ((x).iopte)
-#define pmd_val(x) ((x).pmdv[0])
+#define pmd_val(x) ((x).pmd)
#define pgd_val(x) ((x).pgd)
#define ctxd_val(x) ((x).ctxd)
#define pgprot_val(x) ((x).pgprot)
@@ -82,7 +82,7 @@ typedef struct { unsigned long iopgprot; } iopgprot_t;
*/
typedef unsigned long pte_t;
typedef unsigned long iopte_t;
-typedef struct { unsigned long pmdv[16]; } pmd_t;
+typedef unsigned long pmd_t;
typedef unsigned long pgd_t;
typedef unsigned long ctxd_t;
typedef unsigned long pgprot_t;
@@ -90,14 +90,14 @@ typedef unsigned long iopgprot_t;
#define pte_val(x) (x)
#define iopte_val(x) (x)
-#define pmd_val(x) ((x).pmdv[0])
+#define pmd_val(x) (x)
#define pgd_val(x) (x)
#define ctxd_val(x) (x)
#define pgprot_val(x) (x)
#define iopgprot_val(x) (x)
#define __pte(x) (x)
-#define __pmd(x) ((pmd_t) { { (x) }, })
+#define __pmd(x) (x)
#define __iopte(x) (x)
#define __pgd(x) (x)
#define __ctxd(x) (x)
@@ -106,7 +106,7 @@ typedef unsigned long iopgprot_t;
#endif
-typedef struct page *pgtable_t;
+typedef pte_t *pgtable_t;
#define TASK_UNMAPPED_BASE 0x50000000
diff --git a/arch/sparc/include/asm/pgalloc_32.h b/arch/sparc/include/asm/pgalloc_32.h
index eae0c92ec422..b772384871e9 100644
--- a/arch/sparc/include/asm/pgalloc_32.h
+++ b/arch/sparc/include/asm/pgalloc_32.h
@@ -50,23 +50,24 @@ static inline void free_pmd_fast(pmd_t * pmd)
#define pmd_free(mm, pmd) free_pmd_fast(pmd)
#define __pmd_free_tlb(tlb, pmd, addr) pmd_free((tlb)->mm, pmd)
-void pmd_populate(struct mm_struct *mm, pmd_t *pmdp, struct page *ptep);
-#define pmd_pgtable(pmd) pmd_page(pmd)
+#define pmd_populate(mm, pmd, pte) pmd_set(pmd, pte)
+#define pmd_pgtable(pmd) (pgtable_t)__pmd_page(pmd)
void pmd_set(pmd_t *pmdp, pte_t *ptep);
-#define pmd_populate_kernel(MM, PMD, PTE) pmd_set(PMD, PTE)
+#define pmd_populate_kernel pmd_populate
pgtable_t pte_alloc_one(struct mm_struct *mm);
static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm)
{
- return srmmu_get_nocache(PTE_SIZE, PTE_SIZE);
+ return srmmu_get_nocache(SRMMU_PTE_TABLE_SIZE,
+ SRMMU_PTE_TABLE_SIZE);
}
static inline void free_pte_fast(pte_t *pte)
{
- srmmu_free_nocache(pte, PTE_SIZE);
+ srmmu_free_nocache(pte, SRMMU_PTE_TABLE_SIZE);
}
#define pte_free_kernel(mm, pte) free_pte_fast(pte)
diff --git a/arch/sparc/include/asm/pgtable_32.h b/arch/sparc/include/asm/pgtable_32.h
index 0de659ae0ba4..c5625b2aa331 100644
--- a/arch/sparc/include/asm/pgtable_32.h
+++ b/arch/sparc/include/asm/pgtable_32.h
@@ -11,6 +11,16 @@
#include <linux/const.h>
+#define PMD_SHIFT 18
+#define PMD_SIZE (1UL << PMD_SHIFT)
+#define PMD_MASK (~(PMD_SIZE-1))
+#define PMD_ALIGN(__addr) (((__addr) + ~PMD_MASK) & PMD_MASK)
+
+#define PGDIR_SHIFT 24
+#define PGDIR_SIZE (1UL << PGDIR_SHIFT)
+#define PGDIR_MASK (~(PGDIR_SIZE-1))
+#define PGDIR_ALIGN(__addr) (((__addr) + ~PGDIR_MASK) & PGDIR_MASK)
+
#ifndef __ASSEMBLY__
#include <asm-generic/pgtable-nopud.h>
@@ -34,17 +44,10 @@ unsigned long __init bootmem_init(unsigned long *pages_avail);
#define pmd_ERROR(e) __builtin_trap()
#define pgd_ERROR(e) __builtin_trap()
-#define PMD_SHIFT 22
-#define PMD_SIZE (1UL << PMD_SHIFT)
-#define PMD_MASK (~(PMD_SIZE-1))
-#define PMD_ALIGN(__addr) (((__addr) + ~PMD_MASK) & PMD_MASK)
-#define PGDIR_SHIFT SRMMU_PGDIR_SHIFT
-#define PGDIR_SIZE SRMMU_PGDIR_SIZE
-#define PGDIR_MASK SRMMU_PGDIR_MASK
-#define PTRS_PER_PTE 1024
-#define PTRS_PER_PMD SRMMU_PTRS_PER_PMD
-#define PTRS_PER_PGD SRMMU_PTRS_PER_PGD
-#define USER_PTRS_PER_PGD PAGE_OFFSET / SRMMU_PGDIR_SIZE
+#define PTRS_PER_PTE 64
+#define PTRS_PER_PMD 64
+#define PTRS_PER_PGD 256
+#define USER_PTRS_PER_PGD PAGE_OFFSET / PGDIR_SIZE
#define FIRST_USER_ADDRESS 0UL
#define PTE_SIZE (PTRS_PER_PTE*4)
@@ -132,6 +135,17 @@ static inline struct page *pmd_page(pmd_t pmd)
return pfn_to_page((pmd_val(pmd) & SRMMU_PTD_PMASK) >> (PAGE_SHIFT-4));
}
+static inline unsigned long __pmd_page(pmd_t pmd)
+{
+ unsigned long v;
+
+ if (srmmu_device_memory(pmd_val(pmd)))
+ BUG();
+
+ v = pmd_val(pmd) & SRMMU_PTD_PMASK;
+ return (unsigned long)__nocache_va(v << 4);
+}
+
static inline unsigned long pud_page_vaddr(pud_t pud)
{
if (srmmu_device_memory(pud_val(pud))) {
@@ -179,9 +193,7 @@ static inline int pmd_none(pmd_t pmd)
static inline void pmd_clear(pmd_t *pmdp)
{
- int i;
- for (i = 0; i < PTRS_PER_PTE/SRMMU_REAL_PTRS_PER_PTE; i++)
- set_pte((pte_t *)&pmdp->pmdv[i], __pte(0));
+ set_pte((pte_t *)&pmd_val(*pmdp), __pte(0));
}
static inline int pud_none(pud_t pud)
diff --git a/arch/sparc/include/asm/pgtsrmmu.h b/arch/sparc/include/asm/pgtsrmmu.h
index 32a508897501..7708d015712b 100644
--- a/arch/sparc/include/asm/pgtsrmmu.h
+++ b/arch/sparc/include/asm/pgtsrmmu.h
@@ -17,39 +17,9 @@
/* Number of contexts is implementation-dependent; 64k is the most we support */
#define SRMMU_MAX_CONTEXTS 65536
-/* PMD_SHIFT determines the size of the area a second-level page table entry can map */
-#define SRMMU_REAL_PMD_SHIFT 18
-#define SRMMU_REAL_PMD_SIZE (1UL << SRMMU_REAL_PMD_SHIFT)
-#define SRMMU_REAL_PMD_MASK (~(SRMMU_REAL_PMD_SIZE-1))
-#define SRMMU_REAL_PMD_ALIGN(__addr) (((__addr)+SRMMU_REAL_PMD_SIZE-1)&SRMMU_REAL_PMD_MASK)
-
-/* PGDIR_SHIFT determines what a third-level page table entry can map */
-#define SRMMU_PGDIR_SHIFT 24
-#define SRMMU_PGDIR_SIZE (1UL << SRMMU_PGDIR_SHIFT)
-#define SRMMU_PGDIR_MASK (~(SRMMU_PGDIR_SIZE-1))
-#define SRMMU_PGDIR_ALIGN(addr) (((addr)+SRMMU_PGDIR_SIZE-1)&SRMMU_PGDIR_MASK)
-
-#define SRMMU_REAL_PTRS_PER_PTE 64
-#define SRMMU_REAL_PTRS_PER_PMD 64
-#define SRMMU_PTRS_PER_PGD 256
-
-#define SRMMU_REAL_PTE_TABLE_SIZE (SRMMU_REAL_PTRS_PER_PTE*4)
-#define SRMMU_PMD_TABLE_SIZE (SRMMU_REAL_PTRS_PER_PMD*4)
-#define SRMMU_PGD_TABLE_SIZE (SRMMU_PTRS_PER_PGD*4)
-
-/*
- * To support pagetables in highmem, Linux introduces APIs which
- * return struct page* and generally manipulate page tables when
- * they are not mapped into kernel space. Our hardware page tables
- * are smaller than pages. We lump hardware tabes into big, page sized
- * software tables.
- *
- * PMD_SHIFT determines the size of the area a second-level page table entry
- * can map, and our pmd_t is 16 times larger than normal. The values which
- * were once defined here are now generic for 4c and srmmu, so they're
- * found in pgtable.h.
- */
-#define SRMMU_PTRS_PER_PMD 4
+#define SRMMU_PTE_TABLE_SIZE (PTRS_PER_PTE*4)
+#define SRMMU_PMD_TABLE_SIZE (PTRS_PER_PMD*4)
+#define SRMMU_PGD_TABLE_SIZE (PTRS_PER_PGD*4)
/* Definition of the values in the ET field of PTD's and PTE's */
#define SRMMU_ET_MASK 0x3
diff --git a/arch/sparc/include/asm/viking.h b/arch/sparc/include/asm/viking.h
index 0bbefd184221..08ffc605035f 100644
--- a/arch/sparc/include/asm/viking.h
+++ b/arch/sparc/include/asm/viking.h
@@ -10,6 +10,7 @@
#include <asm/asi.h>
#include <asm/mxcc.h>
+#include <asm/pgtable.h>
#include <asm/pgtsrmmu.h>
/* Bits in the SRMMU control register for GNU/Viking modules.
@@ -227,7 +228,7 @@ static inline unsigned long viking_hwprobe(unsigned long vaddr)
: "=r" (val)
: "r" (vaddr | 0x200), "i" (ASI_M_FLUSH_PROBE));
if ((val & SRMMU_ET_MASK) == SRMMU_ET_PTE) {
- vaddr &= ~SRMMU_PGDIR_MASK;
+ vaddr &= ~PGDIR_MASK;
vaddr >>= PAGE_SHIFT;
return val | (vaddr << 8);
}
@@ -237,7 +238,7 @@ static inline unsigned long viking_hwprobe(unsigned long vaddr)
: "=r" (val)
: "r" (vaddr | 0x100), "i" (ASI_M_FLUSH_PROBE));
if ((val & SRMMU_ET_MASK) == SRMMU_ET_PTE) {
- vaddr &= ~SRMMU_REAL_PMD_MASK;
+ vaddr &= ~PMD_MASK;
vaddr >>= PAGE_SHIFT;
return val | (vaddr << 8);
}
diff --git a/arch/sparc/kernel/cpumap.c b/arch/sparc/kernel/cpumap.c
index 1cb62bfeaa1f..f07ea88a83af 100644
--- a/arch/sparc/kernel/cpumap.c
+++ b/arch/sparc/kernel/cpumap.c
@@ -50,7 +50,7 @@ struct cpuinfo_tree {
/* Offsets into nodes[] for each level of the tree */
struct cpuinfo_level level[CPUINFO_LVL_MAX];
- struct cpuinfo_node nodes[0];
+ struct cpuinfo_node nodes[];
};
diff --git a/arch/sparc/kernel/ds.c b/arch/sparc/kernel/ds.c
index 75232cbd58bf..522e5b51050c 100644
--- a/arch/sparc/kernel/ds.c
+++ b/arch/sparc/kernel/ds.c
@@ -87,7 +87,7 @@ struct ds_reg_req {
__u64 handle;
__u16 major;
__u16 minor;
- char svc_id[0];
+ char svc_id[];
};
struct ds_reg_ack {
@@ -701,12 +701,12 @@ struct ds_var_hdr {
struct ds_var_set_msg {
struct ds_var_hdr hdr;
- char name_and_value[0];
+ char name_and_value[];
};
struct ds_var_delete_msg {
struct ds_var_hdr hdr;
- char name[0];
+ char name[];
};
struct ds_var_resp {
@@ -989,7 +989,7 @@ struct ds_queue_entry {
struct ds_info *dp;
int req_len;
int __pad;
- u64 req[0];
+ u64 req[];
};
static void process_ds_work(void)
diff --git a/arch/sparc/kernel/head_32.S b/arch/sparc/kernel/head_32.S
index e55f2c075165..be30c8d4cc73 100644
--- a/arch/sparc/kernel/head_32.S
+++ b/arch/sparc/kernel/head_32.S
@@ -24,7 +24,7 @@
#include <asm/winmacro.h>
#include <asm/thread_info.h> /* TI_UWINMASK */
#include <asm/errno.h>
-#include <asm/pgtsrmmu.h> /* SRMMU_PGDIR_SHIFT */
+#include <asm/pgtable.h> /* PGDIR_SHIFT */
#include <asm/export.h>
.data
@@ -273,7 +273,7 @@ not_a_sun4:
lda [%o1] ASI_M_BYPASS, %o2 ! This is the 0x0 16MB pgd
/* Calculate to KERNBASE entry. */
- add %o1, KERNBASE >> (SRMMU_PGDIR_SHIFT - 2), %o3
+ add %o1, KERNBASE >> (PGDIR_SHIFT - 2), %o3
/* Poke the entry into the calculated address. */
sta %o2, [%o3] ASI_M_BYPASS
@@ -317,7 +317,7 @@ srmmu_not_viking:
sll %g1, 0x8, %g1 ! make phys addr for l1 tbl
lda [%g1] ASI_M_BYPASS, %g2 ! get level1 entry for 0x0
- add %g1, KERNBASE >> (SRMMU_PGDIR_SHIFT - 2), %g3
+ add %g1, KERNBASE >> (PGDIR_SHIFT - 2), %g3
sta %g2, [%g3] ASI_M_BYPASS ! place at KERNBASE entry
b go_to_highmem
nop ! wheee....
@@ -341,7 +341,7 @@ leon_remap:
sll %g1, 0x8, %g1 ! make phys addr for l1 tbl
lda [%g1] ASI_M_BYPASS, %g2 ! get level1 entry for 0x0
- add %g1, KERNBASE >> (SRMMU_PGDIR_SHIFT - 2), %g3
+ add %g1, KERNBASE >> (PGDIR_SHIFT - 2), %g3
sta %g2, [%g3] ASI_M_BYPASS ! place at KERNBASE entry
b go_to_highmem
nop ! wheee....
diff --git a/arch/sparc/kernel/pci.c b/arch/sparc/kernel/pci.c
index 5ed43828e078..a41ad562ed4e 100644
--- a/arch/sparc/kernel/pci.c
+++ b/arch/sparc/kernel/pci.c
@@ -593,7 +593,7 @@ show_pciobppath_attr(struct device * dev, struct device_attribute * attr, char *
pdev = to_pci_dev(dev);
dp = pdev->dev.of_node;
- return snprintf (buf, PAGE_SIZE, "%pOF\n", dp);
+ return scnprintf(buf, PAGE_SIZE, "%pOF\n", dp);
}
static DEVICE_ATTR(obppath, S_IRUSR | S_IRGRP | S_IROTH, show_pciobppath_attr, NULL);
diff --git a/arch/sparc/kernel/ptrace_32.c b/arch/sparc/kernel/ptrace_32.c
index 16b50afe7b52..646dd58169ec 100644
--- a/arch/sparc/kernel/ptrace_32.c
+++ b/arch/sparc/kernel/ptrace_32.c
@@ -46,82 +46,79 @@ enum sparc_regset {
REGSET_FP,
};
+static int regwindow32_get(struct task_struct *target,
+ const struct pt_regs *regs,
+ u32 *uregs)
+{
+ unsigned long reg_window = regs->u_regs[UREG_I6];
+ int size = 16 * sizeof(u32);
+
+ if (target == current) {
+ if (copy_from_user(uregs, (void __user *)reg_window, size))
+ return -EFAULT;
+ } else {
+ if (access_process_vm(target, reg_window, uregs, size,
+ FOLL_FORCE) != size)
+ return -EFAULT;
+ }
+ return 0;
+}
+
+static int regwindow32_set(struct task_struct *target,
+ const struct pt_regs *regs,
+ u32 *uregs)
+{
+ unsigned long reg_window = regs->u_regs[UREG_I6];
+ int size = 16 * sizeof(u32);
+
+ if (target == current) {
+ if (copy_to_user((void __user *)reg_window, uregs, size))
+ return -EFAULT;
+ } else {
+ if (access_process_vm(target, reg_window, uregs, size,
+ FOLL_FORCE | FOLL_WRITE) != size)
+ return -EFAULT;
+ }
+ return 0;
+}
+
static int genregs32_get(struct task_struct *target,
const struct user_regset *regset,
unsigned int pos, unsigned int count,
void *kbuf, void __user *ubuf)
{
const struct pt_regs *regs = target->thread.kregs;
- unsigned long __user *reg_window;
- unsigned long *k = kbuf;
- unsigned long __user *u = ubuf;
- unsigned long reg;
+ u32 uregs[16];
+ int ret;
if (target == current)
flush_user_windows();
- pos /= sizeof(reg);
- count /= sizeof(reg);
-
- if (kbuf) {
- for (; count > 0 && pos < 16; count--)
- *k++ = regs->u_regs[pos++];
-
- reg_window = (unsigned long __user *) regs->u_regs[UREG_I6];
- reg_window -= 16;
- for (; count > 0 && pos < 32; count--) {
- if (get_user(*k++, &reg_window[pos++]))
- return -EFAULT;
- }
- } else {
- for (; count > 0 && pos < 16; count--) {
- if (put_user(regs->u_regs[pos++], u++))
- return -EFAULT;
- }
-
- reg_window = (unsigned long __user *) regs->u_regs[UREG_I6];
- reg_window -= 16;
- for (; count > 0 && pos < 32; count--) {
- if (get_user(reg, &reg_window[pos++]) ||
- put_user(reg, u++))
- return -EFAULT;
- }
- }
- while (count > 0) {
- switch (pos) {
- case 32: /* PSR */
- reg = regs->psr;
- break;
- case 33: /* PC */
- reg = regs->pc;
- break;
- case 34: /* NPC */
- reg = regs->npc;
- break;
- case 35: /* Y */
- reg = regs->y;
- break;
- case 36: /* WIM */
- case 37: /* TBR */
- reg = 0;
- break;
- default:
- goto finish;
- }
+ ret = user_regset_copyout(&pos, &count, &kbuf, &ubuf,
+ regs->u_regs,
+ 0, 16 * sizeof(u32));
+ if (ret || !count)
+ return ret;
- if (kbuf)
- *k++ = reg;
- else if (put_user(reg, u++))
+ if (pos < 32 * sizeof(u32)) {
+ if (regwindow32_get(target, regs, uregs))
return -EFAULT;
- pos++;
- count--;
+ ret = user_regset_copyout(&pos, &count, &kbuf, &ubuf,
+ uregs,
+ 16 * sizeof(u32), 32 * sizeof(u32));
+ if (ret || !count)
+ return ret;
}
-finish:
- pos *= sizeof(reg);
- count *= sizeof(reg);
- return user_regset_copyout_zero(&pos, &count, &kbuf, &ubuf,
- 38 * sizeof(reg), -1);
+ uregs[0] = regs->psr;
+ uregs[1] = regs->pc;
+ uregs[2] = regs->npc;
+ uregs[3] = regs->y;
+ uregs[4] = 0; /* WIM */
+ uregs[5] = 0; /* TBR */
+ return user_regset_copyout(&pos, &count, &kbuf, &ubuf,
+ uregs,
+ 32 * sizeof(u32), 38 * sizeof(u32));
}
static int genregs32_set(struct task_struct *target,
@@ -130,82 +127,58 @@ static int genregs32_set(struct task_struct *target,
const void *kbuf, const void __user *ubuf)
{
struct pt_regs *regs = target->thread.kregs;
- unsigned long __user *reg_window;
- const unsigned long *k = kbuf;
- const unsigned long __user *u = ubuf;
- unsigned long reg;
+ u32 uregs[16];
+ u32 psr;
+ int ret;
if (target == current)
flush_user_windows();
- pos /= sizeof(reg);
- count /= sizeof(reg);
-
- if (kbuf) {
- for (; count > 0 && pos < 16; count--)
- regs->u_regs[pos++] = *k++;
-
- reg_window = (unsigned long __user *) regs->u_regs[UREG_I6];
- reg_window -= 16;
- for (; count > 0 && pos < 32; count--) {
- if (put_user(*k++, &reg_window[pos++]))
- return -EFAULT;
- }
- } else {
- for (; count > 0 && pos < 16; count--) {
- if (get_user(reg, u++))
- return -EFAULT;
- regs->u_regs[pos++] = reg;
- }
-
- reg_window = (unsigned long __user *) regs->u_regs[UREG_I6];
- reg_window -= 16;
- for (; count > 0 && pos < 32; count--) {
- if (get_user(reg, u++) ||
- put_user(reg, &reg_window[pos++]))
- return -EFAULT;
- }
- }
- while (count > 0) {
- unsigned long psr;
+ ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf,
+ regs->u_regs,
+ 0, 16 * sizeof(u32));
+ if (ret || !count)
+ return ret;
- if (kbuf)
- reg = *k++;
- else if (get_user(reg, u++))
+ if (pos < 32 * sizeof(u32)) {
+ if (regwindow32_get(target, regs, uregs))
return -EFAULT;
-
- switch (pos) {
- case 32: /* PSR */
- psr = regs->psr;
- psr &= ~(PSR_ICC | PSR_SYSCALL);
- psr |= (reg & (PSR_ICC | PSR_SYSCALL));
- regs->psr = psr;
- break;
- case 33: /* PC */
- regs->pc = reg;
- break;
- case 34: /* NPC */
- regs->npc = reg;
- break;
- case 35: /* Y */
- regs->y = reg;
- break;
- case 36: /* WIM */
- case 37: /* TBR */
- break;
- default:
- goto finish;
- }
-
- pos++;
- count--;
+ ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf,
+ uregs,
+ 16 * sizeof(u32), 32 * sizeof(u32));
+ if (ret)
+ return ret;
+ if (regwindow32_set(target, regs, uregs))
+ return -EFAULT;
+ if (!count)
+ return 0;
}
-finish:
- pos *= sizeof(reg);
- count *= sizeof(reg);
-
+ ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf,
+ &psr,
+ 32 * sizeof(u32), 33 * sizeof(u32));
+ if (ret)
+ return ret;
+ regs->psr = (regs->psr & ~(PSR_ICC | PSR_SYSCALL)) |
+ (psr & (PSR_ICC | PSR_SYSCALL));
+ if (!count)
+ return 0;
+ ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf,
+ &regs->pc,
+ 33 * sizeof(u32), 34 * sizeof(u32));
+ if (ret || !count)
+ return ret;
+ ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf,
+ &regs->npc,
+ 34 * sizeof(u32), 35 * sizeof(u32));
+ if (ret || !count)
+ return ret;
+ ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf,
+ &regs->y,
+ 35 * sizeof(u32), 36 * sizeof(u32));
+ if (ret || !count)
+ return ret;
return user_regset_copyin_ignore(&pos, &count, &kbuf, &ubuf,
- 38 * sizeof(reg), -1);
+ 36 * sizeof(u32), 38 * sizeof(u32));
}
static int fpregs32_get(struct task_struct *target,
diff --git a/arch/sparc/kernel/ptrace_64.c b/arch/sparc/kernel/ptrace_64.c
index c9d41a96468f..3f5930bfab06 100644
--- a/arch/sparc/kernel/ptrace_64.c
+++ b/arch/sparc/kernel/ptrace_64.c
@@ -572,19 +572,13 @@ static int genregs32_get(struct task_struct *target,
for (; count > 0 && pos < 32; count--) {
if (access_process_vm(target,
(unsigned long)
- &reg_window[pos],
+ &reg_window[pos++],
&reg, sizeof(reg),
FOLL_FORCE)
!= sizeof(reg))
return -EFAULT;
- if (access_process_vm(target,
- (unsigned long) u,
- &reg, sizeof(reg),
- FOLL_FORCE | FOLL_WRITE)
- != sizeof(reg))
+ if (put_user(reg, u++))
return -EFAULT;
- pos++;
- u++;
}
}
}
@@ -684,12 +678,7 @@ static int genregs32_set(struct task_struct *target,
}
} else {
for (; count > 0 && pos < 32; count--) {
- if (access_process_vm(target,
- (unsigned long)
- u,
- &reg, sizeof(reg),
- FOLL_FORCE)
- != sizeof(reg))
+ if (get_user(reg, u++))
return -EFAULT;
if (access_process_vm(target,
(unsigned long)
diff --git a/arch/sparc/kernel/sys_sparc32.c b/arch/sparc/kernel/sys_sparc32.c
index b5da3bfdc225..f84a02ab6bf9 100644
--- a/arch/sparc/kernel/sys_sparc32.c
+++ b/arch/sparc/kernel/sys_sparc32.c
@@ -22,7 +22,6 @@
#include <linux/msg.h>
#include <linux/shm.h>
#include <linux/uio.h>
-#include <linux/nfs_fs.h>
#include <linux/quota.h>
#include <linux/poll.h>
#include <linux/personality.h>
diff --git a/arch/sparc/kernel/vio.c b/arch/sparc/kernel/vio.c
index c7cad9b7bba7..4f57056ed463 100644
--- a/arch/sparc/kernel/vio.c
+++ b/arch/sparc/kernel/vio.c
@@ -193,7 +193,7 @@ show_pciobppath_attr(struct device *dev, struct device_attribute *attr,
vdev = to_vio_dev(dev);
dp = vdev->dp;
- return snprintf (buf, PAGE_SIZE, "%pOF\n", dp);
+ return scnprintf(buf, PAGE_SIZE, "%pOF\n", dp);
}
static DEVICE_ATTR(obppath, S_IRUSR | S_IRGRP | S_IROTH,
diff --git a/arch/sparc/mm/hypersparc.S b/arch/sparc/mm/hypersparc.S
index 66885a8dc50a..6c2521e85a42 100644
--- a/arch/sparc/mm/hypersparc.S
+++ b/arch/sparc/mm/hypersparc.S
@@ -10,6 +10,7 @@
#include <asm/asm-offsets.h>
#include <asm/asi.h>
#include <asm/page.h>
+#include <asm/pgtable.h>
#include <asm/pgtsrmmu.h>
#include <linux/init.h>
@@ -293,7 +294,7 @@ hypersparc_flush_tlb_range:
cmp %o3, -1
be hypersparc_flush_tlb_range_out
#endif
- sethi %hi(~((1 << SRMMU_PGDIR_SHIFT) - 1)), %o4
+ sethi %hi(~((1 << PGDIR_SHIFT) - 1)), %o4
sta %o3, [%g1] ASI_M_MMUREGS
and %o1, %o4, %o1
add %o1, 0x200, %o1
diff --git a/arch/sparc/mm/init_64.c b/arch/sparc/mm/init_64.c
index 5774529ceb43..2ef6826a6ca6 100644
--- a/arch/sparc/mm/init_64.c
+++ b/arch/sparc/mm/init_64.c
@@ -1649,29 +1649,29 @@ bool kern_addr_valid(unsigned long addr)
pgd = pgd_offset_k(addr);
if (pgd_none(*pgd))
- return 0;
+ return false;
p4d = p4d_offset(pgd, addr);
if (p4d_none(*p4d))
- return 0;
+ return false;
pud = pud_offset(p4d, addr);
if (pud_none(*pud))
- return 0;
+ return false;
if (pud_large(*pud))
return pfn_valid(pud_pfn(*pud));
pmd = pmd_offset(pud, addr);
if (pmd_none(*pmd))
- return 0;
+ return false;
if (pmd_large(*pmd))
return pfn_valid(pmd_pfn(*pmd));
pte = pte_offset_kernel(pmd, addr);
if (pte_none(*pte))
- return 0;
+ return false;
return pfn_valid(pte_pfn(*pte));
}
diff --git a/arch/sparc/mm/srmmu.c b/arch/sparc/mm/srmmu.c
index 7c2278dd308d..989da22ba8e9 100644
--- a/arch/sparc/mm/srmmu.c
+++ b/arch/sparc/mm/srmmu.c
@@ -136,26 +136,8 @@ static void msi_set_sync(void)
void pmd_set(pmd_t *pmdp, pte_t *ptep)
{
- unsigned long ptp; /* Physical address, shifted right by 4 */
- int i;
-
- ptp = __nocache_pa(ptep) >> 4;
- for (i = 0; i < PTRS_PER_PTE/SRMMU_REAL_PTRS_PER_PTE; i++) {
- set_pte((pte_t *)&pmdp->pmdv[i], __pte(SRMMU_ET_PTD | ptp));
- ptp += (SRMMU_REAL_PTRS_PER_PTE * sizeof(pte_t) >> 4);
- }
-}
-
-void pmd_populate(struct mm_struct *mm, pmd_t *pmdp, struct page *ptep)
-{
- unsigned long ptp; /* Physical address, shifted right by 4 */
- int i;
-
- ptp = page_to_pfn(ptep) << (PAGE_SHIFT-4); /* watch for overflow */
- for (i = 0; i < PTRS_PER_PTE/SRMMU_REAL_PTRS_PER_PTE; i++) {
- set_pte((pte_t *)&pmdp->pmdv[i], __pte(SRMMU_ET_PTD | ptp));
- ptp += (SRMMU_REAL_PTRS_PER_PTE * sizeof(pte_t) >> 4);
- }
+ unsigned long ptp = __nocache_pa(ptep) >> 4;
+ set_pte((pte_t *)&pmd_val(*pmdp), __pte(SRMMU_ET_PTD | ptp));
}
/* Find an entry in the third-level page table.. */
@@ -163,7 +145,7 @@ pte_t *pte_offset_kernel(pmd_t *dir, unsigned long address)
{
void *pte;
- pte = __nocache_va((dir->pmdv[0] & SRMMU_PTD_PMASK) << 4);
+ pte = __nocache_va((pmd_val(*dir) & SRMMU_PTD_PMASK) << 4);
return (pte_t *) pte +
((address >> PAGE_SHIFT) & (PTRS_PER_PTE - 1));
}
@@ -175,18 +157,18 @@ pte_t *pte_offset_kernel(pmd_t *dir, unsigned long address)
*/
static void *__srmmu_get_nocache(int size, int align)
{
- int offset;
+ int offset, minsz = 1 << SRMMU_NOCACHE_BITMAP_SHIFT;
unsigned long addr;
- if (size < SRMMU_NOCACHE_BITMAP_SHIFT) {
+ if (size < minsz) {
printk(KERN_ERR "Size 0x%x too small for nocache request\n",
size);
- size = SRMMU_NOCACHE_BITMAP_SHIFT;
+ size = minsz;
}
- if (size & (SRMMU_NOCACHE_BITMAP_SHIFT - 1)) {
- printk(KERN_ERR "Size 0x%x unaligned int nocache request\n",
+ if (size & (minsz - 1)) {
+ printk(KERN_ERR "Size 0x%x unaligned in nocache request\n",
size);
- size += SRMMU_NOCACHE_BITMAP_SHIFT - 1;
+ size += minsz - 1;
}
BUG_ON(align > SRMMU_NOCACHE_ALIGN_MAX);
@@ -376,31 +358,33 @@ pgd_t *get_pgd_fast(void)
*/
pgtable_t pte_alloc_one(struct mm_struct *mm)
{
- unsigned long pte;
+ pte_t *ptep;
struct page *page;
- if ((pte = (unsigned long)pte_alloc_one_kernel(mm)) == 0)
- return NULL;
- page = pfn_to_page(__nocache_pa(pte) >> PAGE_SHIFT);
- if (!pgtable_pte_page_ctor(page)) {
- __free_page(page);
+ if ((ptep = pte_alloc_one_kernel(mm)) == 0)
return NULL;
+ page = pfn_to_page(__nocache_pa((unsigned long)ptep) >> PAGE_SHIFT);
+ spin_lock(&mm->page_table_lock);
+ if (page_ref_inc_return(page) == 2 && !pgtable_pte_page_ctor(page)) {
+ page_ref_dec(page);
+ ptep = NULL;
}
- return page;
+ spin_unlock(&mm->page_table_lock);
+
+ return ptep;
}
-void pte_free(struct mm_struct *mm, pgtable_t pte)
+void pte_free(struct mm_struct *mm, pgtable_t ptep)
{
- unsigned long p;
+ struct page *page;
- pgtable_pte_page_dtor(pte);
- p = (unsigned long)page_address(pte); /* Cached address (for test) */
- if (p == 0)
- BUG();
- p = page_to_pfn(pte) << PAGE_SHIFT; /* Physical address */
+ page = pfn_to_page(__nocache_pa((unsigned long)ptep) >> PAGE_SHIFT);
+ spin_lock(&mm->page_table_lock);
+ if (page_ref_dec_return(page) == 1)
+ pgtable_pte_page_dtor(page);
+ spin_unlock(&mm->page_table_lock);
- /* free non cached virtual address*/
- srmmu_free_nocache(__nocache_va(p), PTE_SIZE);
+ srmmu_free_nocache(ptep, SRMMU_PTE_TABLE_SIZE);
}
/* context handling - a dynamically sized pool is used */
@@ -822,13 +806,13 @@ static void __init srmmu_inherit_prom_mappings(unsigned long start,
what = 0;
addr = start - PAGE_SIZE;
- if (!(start & ~(SRMMU_REAL_PMD_MASK))) {
- if (srmmu_probe(addr + SRMMU_REAL_PMD_SIZE) == probed)
+ if (!(start & ~(PMD_MASK))) {
+ if (srmmu_probe(addr + PMD_SIZE) == probed)
what = 1;
}
- if (!(start & ~(SRMMU_PGDIR_MASK))) {
- if (srmmu_probe(addr + SRMMU_PGDIR_SIZE) == probed)
+ if (!(start & ~(PGDIR_MASK))) {
+ if (srmmu_probe(addr + PGDIR_SIZE) == probed)
what = 2;
}
@@ -837,7 +821,7 @@ static void __init srmmu_inherit_prom_mappings(unsigned long start,
pudp = pud_offset(p4dp, start);
if (what == 2) {
*(pgd_t *)__nocache_fix(pgdp) = __pgd(probed);
- start += SRMMU_PGDIR_SIZE;
+ start += PGDIR_SIZE;
continue;
}
if (pud_none(*(pud_t *)__nocache_fix(pudp))) {
@@ -849,6 +833,11 @@ static void __init srmmu_inherit_prom_mappings(unsigned long start,
pud_set(__nocache_fix(pudp), pmdp);
}
pmdp = pmd_offset(__nocache_fix(pgdp), start);
+ if (what == 1) {
+ *(pmd_t *)__nocache_fix(pmdp) = __pmd(probed);
+ start += PMD_SIZE;
+ continue;
+ }
if (srmmu_pmd_none(*(pmd_t *)__nocache_fix(pmdp))) {
ptep = __srmmu_get_nocache(PTE_SIZE, PTE_SIZE);
if (ptep == NULL)
@@ -856,19 +845,6 @@ static void __init srmmu_inherit_prom_mappings(unsigned long start,
memset(__nocache_fix(ptep), 0, PTE_SIZE);
pmd_set(__nocache_fix(pmdp), ptep);
}
- if (what == 1) {
- /* We bend the rule where all 16 PTPs in a pmd_t point
- * inside the same PTE page, and we leak a perfectly
- * good hardware PTE piece. Alternatives seem worse.
- */
- unsigned int x; /* Index of HW PMD in soft cluster */
- unsigned long *val;
- x = (start >> PMD_SHIFT) & 15;
- val = &pmdp->pmdv[x];
- *(unsigned long *)__nocache_fix(val) = probed;
- start += SRMMU_REAL_PMD_SIZE;
- continue;
- }
ptep = pte_offset_kernel(__nocache_fix(pmdp), start);
*(pte_t *)__nocache_fix(ptep) = __pte(probed);
start += PAGE_SIZE;
@@ -890,9 +866,9 @@ static void __init do_large_mapping(unsigned long vaddr, unsigned long phys_base
/* Map sp_bank entry SP_ENTRY, starting at virtual address VBASE. */
static unsigned long __init map_spbank(unsigned long vbase, int sp_entry)
{
- unsigned long pstart = (sp_banks[sp_entry].base_addr & SRMMU_PGDIR_MASK);
- unsigned long vstart = (vbase & SRMMU_PGDIR_MASK);
- unsigned long vend = SRMMU_PGDIR_ALIGN(vbase + sp_banks[sp_entry].num_bytes);
+ unsigned long pstart = (sp_banks[sp_entry].base_addr & PGDIR_MASK);
+ unsigned long vstart = (vbase & PGDIR_MASK);
+ unsigned long vend = PGDIR_ALIGN(vbase + sp_banks[sp_entry].num_bytes);
/* Map "low" memory only */
const unsigned long min_vaddr = PAGE_OFFSET;
const unsigned long max_vaddr = PAGE_OFFSET + SRMMU_MAXMEM;
@@ -905,7 +881,7 @@ static unsigned long __init map_spbank(unsigned long vbase, int sp_entry)
while (vstart < vend) {
do_large_mapping(vstart, pstart);
- vstart += SRMMU_PGDIR_SIZE; pstart += SRMMU_PGDIR_SIZE;
+ vstart += PGDIR_SIZE; pstart += PGDIR_SIZE;
}
return vstart;
}
diff --git a/arch/sparc/mm/viking.S b/arch/sparc/mm/viking.S
index adaef6e7b8cf..48f062de7a7f 100644
--- a/arch/sparc/mm/viking.S
+++ b/arch/sparc/mm/viking.S
@@ -13,6 +13,7 @@
#include <asm/asi.h>
#include <asm/mxcc.h>
#include <asm/page.h>
+#include <asm/pgtable.h>
#include <asm/pgtsrmmu.h>
#include <asm/viking.h>
@@ -157,7 +158,7 @@ viking_flush_tlb_range:
cmp %o3, -1
be 2f
#endif
- sethi %hi(~((1 << SRMMU_PGDIR_SHIFT) - 1)), %o4
+ sethi %hi(~((1 << PGDIR_SHIFT) - 1)), %o4
sta %o3, [%g1] ASI_M_MMUREGS
and %o1, %o4, %o1
add %o1, 0x200, %o1
@@ -243,7 +244,7 @@ sun4dsmp_flush_tlb_range:
ld [%o0 + VMA_VM_MM], %o0
ld [%o0 + AOFF_mm_context], %o3
lda [%g1] ASI_M_MMUREGS, %g5
- sethi %hi(~((1 << SRMMU_PGDIR_SHIFT) - 1)), %o4
+ sethi %hi(~((1 << PGDIR_SHIFT) - 1)), %o4
sta %o3, [%g1] ASI_M_MMUREGS
and %o1, %o4, %o1
add %o1, 0x200, %o1
View Lorry Controller Status