diff options
Diffstat (limited to 'arch/frv')
| -rw-r--r-- | arch/frv/Kconfig | 8 | ||||
| -rw-r--r-- | arch/frv/kernel/Makefile | 2 | ||||
| -rw-r--r-- | arch/frv/kernel/kernel_execve.S | 33 |
3 files changed, 42 insertions, 1 deletions
diff --git a/arch/frv/Kconfig b/arch/frv/Kconfig index f7b171b92ea..cf1c446e003 100644 --- a/arch/frv/Kconfig +++ b/arch/frv/Kconfig @@ -86,6 +86,14 @@ config HIGHPTE with a lot of RAM, this can be wasteful of precious low memory. Setting this option will put user-space page tables in high memory. +config LARGE_ALLOCS + bool "Allow allocating large blocks (> 1MB) of memory" + help + Allow the slab memory allocator to keep chains for very large memory + sizes - up to 32MB. You may need this if your system has a lot of + RAM, and you need to able to allocate very large contiguous chunks. + If unsure, say N. + source "mm/Kconfig" choice diff --git a/arch/frv/kernel/Makefile b/arch/frv/kernel/Makefile index 32db3499c46..e8f73ed28b5 100644 --- a/arch/frv/kernel/Makefile +++ b/arch/frv/kernel/Makefile @@ -8,7 +8,7 @@ heads-$(CONFIG_MMU) := head-mmu-fr451.o extra-y:= head.o init_task.o vmlinux.lds obj-y := $(heads-y) entry.o entry-table.o break.o switch_to.o kernel_thread.o \ - process.o traps.o ptrace.o signal.o dma.o \ + kernel_execve.o process.o traps.o ptrace.o signal.o dma.o \ sys_frv.o time.o semaphore.o setup.o frv_ksyms.o \ debug-stub.o irq.o sleep.o uaccess.o diff --git a/arch/frv/kernel/kernel_execve.S b/arch/frv/kernel/kernel_execve.S new file mode 100644 index 00000000000..9b074a16a05 --- /dev/null +++ b/arch/frv/kernel/kernel_execve.S @@ -0,0 +1,33 @@ +/* in-kernel program execution + * + * Copyright (C) 2006 Red Hat, Inc. All Rights Reserved. + * Written by David Howells (dhowells@redhat.com) + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version + * 2 of the License, or (at your option) any later version. + */ + +#include <linux/linkage.h> +#include <asm/unistd.h> + +############################################################################### +# +# Do a system call from kernel instead of calling sys_execve so we end up with +# proper pt_regs. +# +# int kernel_execve(const char *filename, char *const argv[], char *const envp[]) +# +# On entry: GR8/GR9/GR10: arguments to function +# On return: GR8: syscall return. +# +############################################################################### + .globl kernel_execve + .type kernel_execve,@function +kernel_execve: + setlos __NR_execve,gr7 + tira gr0,#0 + bralr + + .size kernel_execve,.-kernel_execve |