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-rw-r--r--arch/score/Kconfig13
-rw-r--r--arch/score/Makefile4
-rw-r--r--arch/score/include/asm/Kbuild7
-rw-r--r--arch/score/include/asm/barrier.h16
-rw-r--r--arch/score/include/asm/bitops.h7
-rw-r--r--arch/score/include/asm/checksum.h93
-rw-r--r--arch/score/include/asm/cputime.h6
-rw-r--r--arch/score/include/asm/dma-mapping.h6
-rw-r--r--arch/score/include/asm/elf.h5
-rw-r--r--arch/score/include/asm/io.h1
-rw-r--r--arch/score/include/asm/pgalloc.h11
-rw-r--r--arch/score/include/asm/pgtable.h3
-rw-r--r--arch/score/include/asm/syscalls.h1
-rw-r--r--arch/score/include/asm/thread_info.h2
-rw-r--r--arch/score/kernel/entry.S9
-rw-r--r--arch/score/kernel/process.c22
-rw-r--r--arch/score/kernel/signal.c21
-rw-r--r--arch/score/kernel/traps.c12
-rw-r--r--arch/score/kernel/vmlinux.lds.S1
-rw-r--r--arch/score/lib/checksum.S2
-rw-r--r--arch/score/mm/fault.c21
-rw-r--r--arch/score/mm/init.c66
-rw-r--r--arch/score/mm/tlb-score.c2
23 files changed, 105 insertions, 226 deletions
diff --git a/arch/score/Kconfig b/arch/score/Kconfig
index 3b1482e7afa..4ac8cae5727 100644
--- a/arch/score/Kconfig
+++ b/arch/score/Kconfig
@@ -2,7 +2,6 @@ menu "Machine selection"
config SCORE
def_bool y
- select HAVE_GENERIC_HARDIRQS
select GENERIC_IRQ_SHOW
select GENERIC_IOMAP
select GENERIC_ATOMIC64
@@ -12,6 +11,7 @@ config SCORE
select GENERIC_CPU_DEVICES
select GENERIC_CLOCKEVENTS
select HAVE_MOD_ARCH_SPECIFIC
+ select VIRT_TO_BUS
select MODULES_USE_ELF_REL
select CLONE_BACKWARDS
@@ -22,27 +22,21 @@ choice
config ARCH_SCORE7
bool "SCORE7 processor"
select SYS_SUPPORTS_32BIT_KERNEL
- select CPU_SCORE7
select GENERIC_HAS_IOMAP
config MACH_SPCT6600
bool "SPCT6600 series based machines"
select SYS_SUPPORTS_32BIT_KERNEL
- select CPU_SCORE7
select GENERIC_HAS_IOMAP
config SCORE_SIM
bool "Score simulator"
select SYS_SUPPORTS_32BIT_KERNEL
- select CPU_SCORE7
select GENERIC_HAS_IOMAP
endchoice
endmenu
-config CPU_SCORE7
- bool
-
config NO_DMA
bool
default y
@@ -86,6 +80,8 @@ config STACKTRACE_SUPPORT
source "init/Kconfig"
+source "kernel/Kconfig.freezer"
+
config MMU
def_bool y
@@ -108,3 +104,6 @@ source "security/Kconfig"
source "crypto/Kconfig"
source "lib/Kconfig"
+
+config NO_IOMEM
+ def_bool y
diff --git a/arch/score/Makefile b/arch/score/Makefile
index 974aefe8612..9e3e060290e 100644
--- a/arch/score/Makefile
+++ b/arch/score/Makefile
@@ -20,8 +20,8 @@ cflags-y += -G0 -pipe -mel -mnhwloop -D__SCOREEL__ \
#
KBUILD_AFLAGS += $(cflags-y)
KBUILD_CFLAGS += $(cflags-y)
-KBUILD_AFLAGS_MODULE += -mlong-calls
-KBUILD_CFLAGS_MODULE += -mlong-calls
+KBUILD_AFLAGS_MODULE +=
+KBUILD_CFLAGS_MODULE +=
LDFLAGS += --oformat elf32-littlescore
LDFLAGS_vmlinux += -G0 -static -nostdlib
diff --git a/arch/score/include/asm/Kbuild b/arch/score/include/asm/Kbuild
index cebaff8069a..2f947aba4bd 100644
--- a/arch/score/include/asm/Kbuild
+++ b/arch/score/include/asm/Kbuild
@@ -1,5 +1,12 @@
header-y +=
+
+generic-y += barrier.h
generic-y += clkdev.h
+generic-y += cputime.h
+generic-y += hash.h
+generic-y += mcs_spinlock.h
+generic-y += preempt.h
generic-y += trace_clock.h
+generic-y += xor.h
diff --git a/arch/score/include/asm/barrier.h b/arch/score/include/asm/barrier.h
deleted file mode 100644
index 0eacb6471e6..00000000000
--- a/arch/score/include/asm/barrier.h
+++ /dev/null
@@ -1,16 +0,0 @@
-#ifndef _ASM_SCORE_BARRIER_H
-#define _ASM_SCORE_BARRIER_H
-
-#define mb() barrier()
-#define rmb() barrier()
-#define wmb() barrier()
-#define smp_mb() barrier()
-#define smp_rmb() barrier()
-#define smp_wmb() barrier()
-
-#define read_barrier_depends() do {} while (0)
-#define smp_read_barrier_depends() do {} while (0)
-
-#define set_mb(var, value) do {var = value; wmb(); } while (0)
-
-#endif /* _ASM_SCORE_BARRIER_H */
diff --git a/arch/score/include/asm/bitops.h b/arch/score/include/asm/bitops.h
index a304096b189..c1bf8d6d0fb 100644
--- a/arch/score/include/asm/bitops.h
+++ b/arch/score/include/asm/bitops.h
@@ -2,12 +2,7 @@
#define _ASM_SCORE_BITOPS_H
#include <asm/byteorder.h> /* swab32 */
-
-/*
- * clear_bit() doesn't provide any barrier for the compiler.
- */
-#define smp_mb__before_clear_bit() barrier()
-#define smp_mb__after_clear_bit() barrier()
+#include <asm/barrier.h>
#include <asm-generic/bitops.h>
#include <asm-generic/bitops/__fls.h>
diff --git a/arch/score/include/asm/checksum.h b/arch/score/include/asm/checksum.h
index f909ac3144a..961bd64015a 100644
--- a/arch/score/include/asm/checksum.h
+++ b/arch/score/include/asm/checksum.h
@@ -184,48 +184,57 @@ static inline __sum16 csum_ipv6_magic(const struct in6_addr *saddr,
__wsum sum)
{
__asm__ __volatile__(
- ".set\tnoreorder\t\t\t# csum_ipv6_magic\n\t"
- ".set\tnoat\n\t"
- "addu\t%0, %5\t\t\t# proto (long in network byte order)\n\t"
- "sltu\t$1, %0, %5\n\t"
- "addu\t%0, $1\n\t"
- "addu\t%0, %6\t\t\t# csum\n\t"
- "sltu\t$1, %0, %6\n\t"
- "lw\t%1, 0(%2)\t\t\t# four words source address\n\t"
- "addu\t%0, $1\n\t"
- "addu\t%0, %1\n\t"
- "sltu\t$1, %0, %1\n\t"
- "lw\t%1, 4(%2)\n\t"
- "addu\t%0, $1\n\t"
- "addu\t%0, %1\n\t"
- "sltu\t$1, %0, %1\n\t"
- "lw\t%1, 8(%2)\n\t"
- "addu\t%0, $1\n\t"
- "addu\t%0, %1\n\t"
- "sltu\t$1, %0, %1\n\t"
- "lw\t%1, 12(%2)\n\t"
- "addu\t%0, $1\n\t"
- "addu\t%0, %1\n\t"
- "sltu\t$1, %0, %1\n\t"
- "lw\t%1, 0(%3)\n\t"
- "addu\t%0, $1\n\t"
- "addu\t%0, %1\n\t"
- "sltu\t$1, %0, %1\n\t"
- "lw\t%1, 4(%3)\n\t"
- "addu\t%0, $1\n\t"
- "addu\t%0, %1\n\t"
- "sltu\t$1, %0, %1\n\t"
- "lw\t%1, 8(%3)\n\t"
- "addu\t%0, $1\n\t"
- "addu\t%0, %1\n\t"
- "sltu\t$1, %0, %1\n\t"
- "lw\t%1, 12(%3)\n\t"
- "addu\t%0, $1\n\t"
- "addu\t%0, %1\n\t"
- "sltu\t$1, %0, %1\n\t"
- "addu\t%0, $1\t\t\t# Add final carry\n\t"
- ".set\tnoat\n\t"
- ".set\tnoreorder"
+ ".set\tvolatile\t\t\t# csum_ipv6_magic\n\t"
+ "add\t%0, %0, %5\t\t\t# proto (long in network byte order)\n\t"
+ "cmp.c\t%5, %0\n\t"
+ "bleu 1f\n\t"
+ "addi\t%0, 0x1\n\t"
+ "1:add\t%0, %0, %6\t\t\t# csum\n\t"
+ "cmp.c\t%6, %0\n\t"
+ "lw\t%1, [%2, 0]\t\t\t# four words source address\n\t"
+ "bleu 1f\n\t"
+ "addi\t%0, 0x1\n\t"
+ "1:add\t%0, %0, %1\n\t"
+ "cmp.c\t%1, %0\n\t"
+ "1:lw\t%1, [%2, 4]\n\t"
+ "bleu 1f\n\t"
+ "addi\t%0, 0x1\n\t"
+ "1:add\t%0, %0, %1\n\t"
+ "cmp.c\t%1, %0\n\t"
+ "lw\t%1, [%2,8]\n\t"
+ "bleu 1f\n\t"
+ "addi\t%0, 0x1\n\t"
+ "1:add\t%0, %0, %1\n\t"
+ "cmp.c\t%1, %0\n\t"
+ "lw\t%1, [%2, 12]\n\t"
+ "bleu 1f\n\t"
+ "addi\t%0, 0x1\n\t"
+ "1:add\t%0, %0,%1\n\t"
+ "cmp.c\t%1, %0\n\t"
+ "lw\t%1, [%3, 0]\n\t"
+ "bleu 1f\n\t"
+ "addi\t%0, 0x1\n\t"
+ "1:add\t%0, %0, %1\n\t"
+ "cmp.c\t%1, %0\n\t"
+ "lw\t%1, [%3, 4]\n\t"
+ "bleu 1f\n\t"
+ "addi\t%0, 0x1\n\t"
+ "1:add\t%0, %0, %1\n\t"
+ "cmp.c\t%1, %0\n\t"
+ "lw\t%1, [%3, 8]\n\t"
+ "bleu 1f\n\t"
+ "addi\t%0, 0x1\n\t"
+ "1:add\t%0, %0, %1\n\t"
+ "cmp.c\t%1, %0\n\t"
+ "lw\t%1, [%3, 12]\n\t"
+ "bleu 1f\n\t"
+ "addi\t%0, 0x1\n\t"
+ "1:add\t%0, %0, %1\n\t"
+ "cmp.c\t%1, %0\n\t"
+ "bleu 1f\n\t"
+ "addi\t%0, 0x1\n\t"
+ "1:\n\t"
+ ".set\toptimize"
: "=r" (sum), "=r" (proto)
: "r" (saddr), "r" (daddr),
"0" (htonl(len)), "1" (htonl(proto)), "r" (sum));
diff --git a/arch/score/include/asm/cputime.h b/arch/score/include/asm/cputime.h
deleted file mode 100644
index 1fced99f0d6..00000000000
--- a/arch/score/include/asm/cputime.h
+++ /dev/null
@@ -1,6 +0,0 @@
-#ifndef _ASM_SCORE_CPUTIME_H
-#define _ASM_SCORE_CPUTIME_H
-
-#include <asm-generic/cputime.h>
-
-#endif /* _ASM_SCORE_CPUTIME_H */
diff --git a/arch/score/include/asm/dma-mapping.h b/arch/score/include/asm/dma-mapping.h
deleted file mode 100644
index f9c0193c7a5..00000000000
--- a/arch/score/include/asm/dma-mapping.h
+++ /dev/null
@@ -1,6 +0,0 @@
-#ifndef _ASM_SCORE_DMA_MAPPING_H
-#define _ASM_SCORE_DMA_MAPPING_H
-
-#include <asm-generic/dma-mapping-broken.h>
-
-#endif /* _ASM_SCORE_DMA_MAPPING_H */
diff --git a/arch/score/include/asm/elf.h b/arch/score/include/asm/elf.h
index 5d566c7a0af..6a9421c693c 100644
--- a/arch/score/include/asm/elf.h
+++ b/arch/score/include/asm/elf.h
@@ -52,11 +52,6 @@ typedef elf_fpreg_t elf_fpregset_t;
#define ELF_DATA ELFDATA2LSB
#define ELF_ARCH EM_SCORE7
-#define SET_PERSONALITY(ex) \
-do { \
- set_personality(PER_LINUX | (current->personality & (~PER_MASK))); \
-} while (0)
-
struct task_struct;
struct pt_regs;
diff --git a/arch/score/include/asm/io.h b/arch/score/include/asm/io.h
index fbbfd7132e3..574c8827abe 100644
--- a/arch/score/include/asm/io.h
+++ b/arch/score/include/asm/io.h
@@ -5,5 +5,4 @@
#define virt_to_bus virt_to_phys
#define bus_to_virt phys_to_virt
-
#endif /* _ASM_SCORE_IO_H */
diff --git a/arch/score/include/asm/pgalloc.h b/arch/score/include/asm/pgalloc.h
index 059a61b7071..2e067657db9 100644
--- a/arch/score/include/asm/pgalloc.h
+++ b/arch/score/include/asm/pgalloc.h
@@ -2,7 +2,7 @@
#define _ASM_SCORE_PGALLOC_H
#include <linux/mm.h>
-
+#include <linux/highmem.h>
static inline void pmd_populate_kernel(struct mm_struct *mm, pmd_t *pmd,
pte_t *pte)
{
@@ -54,9 +54,12 @@ static inline struct page *pte_alloc_one(struct mm_struct *mm,
struct page *pte;
pte = alloc_pages(GFP_KERNEL | __GFP_REPEAT, PTE_ORDER);
- if (pte) {
- clear_highpage(pte);
- pgtable_page_ctor(pte);
+ if (!pte)
+ return NULL;
+ clear_highpage(pte);
+ if (!pgtable_page_ctor(pte)) {
+ __free_page(pte);
+ return NULL;
}
return pte;
}
diff --git a/arch/score/include/asm/pgtable.h b/arch/score/include/asm/pgtable.h
index 2fd46980768..db96ad9afc0 100644
--- a/arch/score/include/asm/pgtable.h
+++ b/arch/score/include/asm/pgtable.h
@@ -113,9 +113,6 @@ static inline pte_t pte_mkspecial(pte_t pte) { return pte; }
#define pte_clear(mm, addr, xp) \
do { set_pte_at(mm, addr, xp, __pte(0)); } while (0)
-#define io_remap_pfn_range(vma, vaddr, pfn, size, prot) \
- remap_pfn_range(vma, vaddr, pfn, size, prot)
-
/*
* The "pgd_xxx()" functions here are trivial for a folded two-level
* setup: the pgd is never bad, and a pmd always exists (as it's folded
diff --git a/arch/score/include/asm/syscalls.h b/arch/score/include/asm/syscalls.h
index acaeed68095..98d1df92fbd 100644
--- a/arch/score/include/asm/syscalls.h
+++ b/arch/score/include/asm/syscalls.h
@@ -1,7 +1,6 @@
#ifndef _ASM_SCORE_SYSCALLS_H
#define _ASM_SCORE_SYSCALLS_H
-asmlinkage long score_sigaltstack(struct pt_regs *regs);
asmlinkage long score_rt_sigreturn(struct pt_regs *regs);
#include <asm-generic/syscalls.h>
diff --git a/arch/score/include/asm/thread_info.h b/arch/score/include/asm/thread_info.h
index 1425cc03487..656b7ada932 100644
--- a/arch/score/include/asm/thread_info.h
+++ b/arch/score/include/asm/thread_info.h
@@ -72,8 +72,6 @@ register struct thread_info *__current_thread_info __asm__("r28");
#endif /* !__ASSEMBLY__ */
-#define PREEMPT_ACTIVE 0x10000000
-
/*
* thread information flags
* - these are process state flags that various assembly files may need to
diff --git a/arch/score/kernel/entry.S b/arch/score/kernel/entry.S
index 1557ca1a295..befb87d30a8 100644
--- a/arch/score/kernel/entry.S
+++ b/arch/score/kernel/entry.S
@@ -264,7 +264,7 @@ resume_kernel:
disable_irq
lw r8, [r28, TI_PRE_COUNT]
cmpz.c r8
- bne r8, restore_all
+ bne restore_all
need_resched:
lw r8, [r28, TI_FLAGS]
andri.c r9, r8, _TIF_NEED_RESCHED
@@ -415,7 +415,7 @@ ENTRY(handle_sys)
sw r9, [r0, PT_EPC]
cmpi.c r27, __NR_syscalls # check syscall number
- bgeu illegal_syscall
+ bcs illegal_syscall
slli r8, r27, 2 # get syscall routine
la r11, sys_call_table
@@ -491,8 +491,3 @@ ENTRY(sys_rt_sigreturn)
mv r4, r0
la r8, score_rt_sigreturn
br r8
-
-ENTRY(sys_sigaltstack)
- mv r4, r0
- la r8, score_sigaltstack
- br r8
diff --git a/arch/score/kernel/process.c b/arch/score/kernel/process.c
index 79568466b57..a1519ad3d49 100644
--- a/arch/score/kernel/process.c
+++ b/arch/score/kernel/process.c
@@ -41,24 +41,6 @@ void machine_halt(void) {}
/* If or when software machine-power-off is implemented, add code here. */
void machine_power_off(void) {}
-/*
- * The idle thread. There's no useful work to be
- * done, so just try to conserve power and have a
- * low exit latency (ie sit in a loop waiting for
- * somebody to say that they'd like to reschedule)
- */
-void __noreturn cpu_idle(void)
-{
- /* endless idle loop with no priority at all */
- while (1) {
- rcu_idle_enter();
- while (!need_resched())
- barrier();
- rcu_idle_exit();
- schedule_preempt_disabled();
- }
-}
-
void ret_from_fork(void);
void ret_from_kernel_thread(void);
@@ -96,8 +78,8 @@ int copy_thread(unsigned long clone_flags, unsigned long usp,
p->thread.reg0 = (unsigned long) childregs;
if (unlikely(p->flags & PF_KTHREAD)) {
memset(childregs, 0, sizeof(struct pt_regs));
- p->thread->reg12 = usp;
- p->thread->reg13 = arg;
+ p->thread.reg12 = usp;
+ p->thread.reg13 = arg;
p->thread.reg3 = (unsigned long) ret_from_kernel_thread;
} else {
*childregs = *current_pt_regs();
diff --git a/arch/score/kernel/signal.c b/arch/score/kernel/signal.c
index 02353bde92d..a00fba32b0e 100644
--- a/arch/score/kernel/signal.c
+++ b/arch/score/kernel/signal.c
@@ -134,16 +134,6 @@ static void __user *get_sigframe(struct k_sigaction *ka,
}
asmlinkage long
-score_sigaltstack(struct pt_regs *regs)
-{
- const stack_t __user *uss = (const stack_t __user *) regs->regs[4];
- stack_t __user *uoss = (stack_t __user *) regs->regs[5];
- unsigned long usp = regs->regs[0];
-
- return do_sigaltstack(uss, uoss, usp);
-}
-
-asmlinkage long
score_rt_sigreturn(struct pt_regs *regs)
{
struct rt_sigframe __user *frame;
@@ -167,9 +157,7 @@ score_rt_sigreturn(struct pt_regs *regs)
else if (sig)
force_sig(sig, current);
- /* It is more difficult to avoid calling this function than to
- call it and ignore errors. */
- if (do_sigaltstack(&frame->rs_uc.uc_stack, NULL, regs->regs[0]) == -EFAULT)
+ if (restore_altstack(&frame->rs_uc.uc_stack))
goto badframe;
regs->is_syscall = 0;
@@ -209,12 +197,7 @@ static int setup_rt_frame(struct k_sigaction *ka, struct pt_regs *regs,
err |= copy_siginfo_to_user(&frame->rs_info, info);
err |= __put_user(0, &frame->rs_uc.uc_flags);
err |= __put_user(NULL, &frame->rs_uc.uc_link);
- err |= __put_user((void __user *)current->sas_ss_sp,
- &frame->rs_uc.uc_stack.ss_sp);
- err |= __put_user(sas_ss_flags(regs->regs[0]),
- &frame->rs_uc.uc_stack.ss_flags);
- err |= __put_user(current->sas_ss_size,
- &frame->rs_uc.uc_stack.ss_size);
+ err |= __save_altstack(&frame->rs_uc.uc_stack, regs->regs[0]);
err |= setup_sigcontext(regs, &frame->rs_uc.uc_mcontext);
err |= __copy_to_user(&frame->rs_uc.uc_sigmask, set, sizeof(*set));
diff --git a/arch/score/kernel/traps.c b/arch/score/kernel/traps.c
index 0e46fb19a84..1517a7dcd6d 100644
--- a/arch/score/kernel/traps.c
+++ b/arch/score/kernel/traps.c
@@ -117,6 +117,8 @@ static void show_code(unsigned int *pc)
*/
void show_regs(struct pt_regs *regs)
{
+ show_regs_print_info(KERN_DEFAULT);
+
printk("r0 : %08lx %08lx %08lx %08lx %08lx %08lx %08lx %08lx\n",
regs->regs[0], regs->regs[1], regs->regs[2], regs->regs[3],
regs->regs[4], regs->regs[5], regs->regs[6], regs->regs[7]);
@@ -149,16 +151,6 @@ static void show_registers(struct pt_regs *regs)
printk(KERN_NOTICE "\n");
}
-/*
- * The architecture-independent dump_stack generator
- */
-void dump_stack(void)
-{
- show_stack(current_thread_info()->task,
- (long *) get_irq_regs()->regs[0]);
-}
-EXPORT_SYMBOL(dump_stack);
-
void __die(const char *str, struct pt_regs *regs, const char *file,
const char *func, unsigned long line)
{
diff --git a/arch/score/kernel/vmlinux.lds.S b/arch/score/kernel/vmlinux.lds.S
index eebcbaa4e97..7274b5c4287 100644
--- a/arch/score/kernel/vmlinux.lds.S
+++ b/arch/score/kernel/vmlinux.lds.S
@@ -49,6 +49,7 @@ SECTIONS
}
. = ALIGN(16);
+ _sdata = .; /* Start of data section */
RODATA
EXCEPTION_TABLE(16)
diff --git a/arch/score/lib/checksum.S b/arch/score/lib/checksum.S
index 706157edc7d..1141f2b4a50 100644
--- a/arch/score/lib/checksum.S
+++ b/arch/score/lib/checksum.S
@@ -137,7 +137,7 @@ ENTRY(csum_partial)
ldi r25, 0
mv r10, r5
cmpi.c r5, 0x8
- blt small_csumcpy /* < 8(singed) bytes to copy */
+ blt small_csumcpy /* < 8(signed) bytes to copy */
cmpi.c r5, 0x0
beq out
andri.c r25, src, 0x1 /* odd buffer? */
diff --git a/arch/score/mm/fault.c b/arch/score/mm/fault.c
index 47b600e4b2c..52238983527 100644
--- a/arch/score/mm/fault.c
+++ b/arch/score/mm/fault.c
@@ -47,6 +47,7 @@ asmlinkage void do_page_fault(struct pt_regs *regs, unsigned long write,
struct task_struct *tsk = current;
struct mm_struct *mm = tsk->mm;
const int field = sizeof(unsigned long) * 2;
+ unsigned long flags = 0;
siginfo_t info;
int fault;
@@ -75,6 +76,9 @@ asmlinkage void do_page_fault(struct pt_regs *regs, unsigned long write,
if (in_atomic() || !mm)
goto bad_area_nosemaphore;
+ if (user_mode(regs))
+ flags |= FAULT_FLAG_USER;
+
down_read(&mm->mmap_sem);
vma = find_vma(mm, address);
if (!vma)
@@ -95,18 +99,18 @@ good_area:
if (write) {
if (!(vma->vm_flags & VM_WRITE))
goto bad_area;
+ flags |= FAULT_FLAG_WRITE;
} else {
if (!(vma->vm_flags & (VM_READ | VM_WRITE | VM_EXEC)))
goto bad_area;
}
-survive:
/*
* If for any reason at all we couldn't handle the fault,
* make sure we exit gracefully rather than endlessly redo
* the fault.
*/
- fault = handle_mm_fault(mm, vma, address, write);
+ fault = handle_mm_fault(mm, vma, address, flags);
if (unlikely(fault & VM_FAULT_ERROR)) {
if (fault & VM_FAULT_OOM)
goto out_of_memory;
@@ -167,15 +171,10 @@ no_context:
*/
out_of_memory:
up_read(&mm->mmap_sem);
- if (is_global_init(tsk)) {
- yield();
- down_read(&mm->mmap_sem);
- goto survive;
- }
- printk("VM: killing process %s\n", tsk->comm);
- if (user_mode(regs))
- do_group_exit(SIGKILL);
- goto no_context;
+ if (!user_mode(regs))
+ goto no_context;
+ pagefault_out_of_memory();
+ return;
do_sigbus:
up_read(&mm->mmap_sem);
diff --git a/arch/score/mm/init.c b/arch/score/mm/init.c
index cee6bce1e30..9fbce49ad3b 100644
--- a/arch/score/mm/init.c
+++ b/arch/score/mm/init.c
@@ -31,7 +31,7 @@
#include <linux/mm.h>
#include <linux/mman.h>
#include <linux/pagemap.h>
-#include <linux/proc_fs.h>
+#include <linux/kcore.h>
#include <linux/sched.h>
#include <linux/initrd.h>
@@ -41,9 +41,7 @@
unsigned long empty_zero_page;
EXPORT_SYMBOL_GPL(empty_zero_page);
-static struct kcore_list kcore_mem, kcore_vmalloc;
-
-static unsigned long setup_zero_page(void)
+static void setup_zero_page(void)
{
struct page *page;
@@ -52,9 +50,7 @@ static unsigned long setup_zero_page(void)
panic("Oh boy, that early out of memory?");
page = virt_to_page((void *) empty_zero_page);
- SetPageReserved(page);
-
- return 1UL;
+ mark_page_reserved(page);
}
#ifndef CONFIG_NEED_MULTIPLE_NODES
@@ -79,67 +75,25 @@ void __init paging_init(void)
void __init mem_init(void)
{
- unsigned long codesize, reservedpages, datasize, initsize;
- unsigned long tmp, ram = 0;
-
high_memory = (void *) __va(max_low_pfn << PAGE_SHIFT);
- totalram_pages += free_all_bootmem();
- totalram_pages -= setup_zero_page(); /* Setup zeroed pages. */
- reservedpages = 0;
-
- for (tmp = 0; tmp < max_low_pfn; tmp++)
- if (page_is_ram(tmp)) {
- ram++;
- if (PageReserved(pfn_to_page(tmp)))
- reservedpages++;
- }
-
- num_physpages = ram;
- codesize = (unsigned long) &_etext - (unsigned long) &_text;
- datasize = (unsigned long) &_edata - (unsigned long) &_etext;
- initsize = (unsigned long) &__init_end - (unsigned long) &__init_begin;
-
- printk(KERN_INFO "Memory: %luk/%luk available (%ldk kernel code, "
- "%ldk reserved, %ldk data, %ldk init, %ldk highmem)\n",
- (unsigned long) nr_free_pages() << (PAGE_SHIFT-10),
- ram << (PAGE_SHIFT-10), codesize >> 10,
- reservedpages << (PAGE_SHIFT-10), datasize >> 10,
- initsize >> 10,
- totalhigh_pages << (PAGE_SHIFT-10));
-}
-#endif /* !CONFIG_NEED_MULTIPLE_NODES */
+ free_all_bootmem();
+ setup_zero_page(); /* Setup zeroed pages. */
-static void free_init_pages(const char *what, unsigned long begin, unsigned long end)
-{
- unsigned long pfn;
-
- for (pfn = PFN_UP(begin); pfn < PFN_DOWN(end); pfn++) {
- struct page *page = pfn_to_page(pfn);
- void *addr = phys_to_virt(PFN_PHYS(pfn));
-
- ClearPageReserved(page);
- init_page_count(page);
- memset(addr, POISON_FREE_INITMEM, PAGE_SIZE);
- __free_page(page);
- totalram_pages++;
- }
- printk(KERN_INFO "Freeing %s: %ldk freed\n", what, (end - begin) >> 10);
+ mem_init_print_info(NULL);
}
+#endif /* !CONFIG_NEED_MULTIPLE_NODES */
#ifdef CONFIG_BLK_DEV_INITRD
void free_initrd_mem(unsigned long start, unsigned long end)
{
- free_init_pages("initrd memory",
- virt_to_phys((void *) start),
- virt_to_phys((void *) end));
+ free_reserved_area((void *)start, (void *)end, POISON_FREE_INITMEM,
+ "initrd");
}
#endif
void __init_refok free_initmem(void)
{
- free_init_pages("unused kernel memory",
- __pa(&__init_begin),
- __pa(&__init_end));
+ free_initmem_default(POISON_FREE_INITMEM);
}
unsigned long pgd_current;
diff --git a/arch/score/mm/tlb-score.c b/arch/score/mm/tlb-score.c
index 6fdb100244c..004073717de 100644
--- a/arch/score/mm/tlb-score.c
+++ b/arch/score/mm/tlb-score.c
@@ -240,7 +240,7 @@ void __update_tlb(struct vm_area_struct *vma, unsigned long address, pte_t pte)
local_irq_restore(flags);
}
-void __cpuinit tlb_init(void)
+void tlb_init(void)
{
tlblock_set(0);
local_flush_tlb_all();
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-11-09 15:35:47 +0000