AuxXxilium/linux_dsm_epyc7002
1
0
Fork 0
mirror of https://github.com/AuxXxilium/linux_dsm_epyc7002.git synced 2024-11-26 02:30:53 +07:00
Code Issues Actions Packages Projects Releases Wiki Activity

ARM: no need for nommu to jump through the hoops that mmu does

Browse Source 
nommu can jump directly to __mmap_switched without the absolute
address branching which the mmuful kernel does.

Acked-by: Greg Ungerer <gerg@uclinux.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
Russell King 2010-10-01 15:42:02 +01:00
parent 2bfc96a127
commit f131a0800e
1 changed files with 1 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
arch/arm/kernel/head-nommu.S
View File

@ -48,8 +48,6 @@ ENTRY(stext)
movs r8, r5 @ invalid machine (r5=0)?
beq __error_a @ yes, error 'a'
ldr r13, __switch_data @ address to jump to after
@ the initialization is done
adr lr, BSYM(__after_proc_init) @ return (PIC) address
ARM( add pc, r10, #PROCINFO_INITFUNC )
THUMB( add r12, r10, #PROCINFO_INITFUNC )
@ -87,8 +85,7 @@ __after_proc_init:
mcr p15, 0, r0, c1, c0, 0 @ write control reg
#endif /* CONFIG_CPU_CP15 */
mov r3, r13
mov pc, r3 @ clear the BSS and jump
b __mmap_switched @ clear the BSS and jump
@ to start_kernel
ENDPROC(__after_proc_init)
.ltorg