David Daney c8f3cc0b65 MIPS: Don't vmap things at address zero. ... In the 64-bit kernel we use swapper_pg_dir for three different things. 1) xuseg mappings for kernel threads. 2) vmap mappings for all kernel-space accesses in xkseg. 3) vmap mappings for kernel modules in ksseg (kseg2). Due to how the TLB refill handlers work, any mapping established in xkseg or ksseg will also establish a xuseg mapping that should never be used by the kernel. In order to be able to use exceptions to trap NULL pointer dereferences, we need to ensure that nothing is mapped at address zero. Since vmap mappings in xkseg are reflected in xuseg, this means we need to ensure that there are no vmap mappings established at the start of xkseg. So we move back VMALLOC_START to avoid establishing vmap mappings at the start of xkseg. Signed-off-by: David Daney <ddaney@caviumnetworks.com> To: linux-mips@linux-mips.org Patchwork: http://patchwork.linux-mips.org/patch/1129/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>		2010-04-30 20:52:41 +01:00
..
alchemy	MIPS: Alchemy: DB1200: Remove custom wait implementation	2010-04-12 17:26:22 +01:00
ar7	MIPS: AR7: Fix phat finger of cpmac fixed_phy_add	2010-04-12 17:26:13 +01:00
bcm47xx	MIPS: Nuke trailing blank lines	2010-02-27 12:53:14 +01:00
bcm63xx	MIPS: BCM63xx: Fix build failure in board_bcm963xx.c	2010-04-12 17:26:20 +01:00
boot	MIPS: Make the debugging of compressed kernel configurable	2010-02-27 12:53:24 +01:00
cavium-octeon	MIPS: Octeon: Remove redundant declaration of octeon_reserve32_memory	2010-04-12 17:26:10 +01:00
cobalt	MIPS: Cobalt: Fix theoretical port aliasing issue	2010-02-27 12:53:43 +01:00
configs	MIPS: Big Sur: Make defconfig more useful.	2010-04-12 17:26:22 +01:00
dec	MIPS: DEC: Convert KN01 lock to raw spinlock.	2010-02-27 12:53:36 +01:00
emma	MIPS: Remove useless zero initializations.	2009-09-17 20:07:51 +02:00
fw	MIPS: IP22: Remove an unused function	2009-12-17 01:56:56 +00:00
gt64120/wrppmc	Update Yoichi Yuasa's e-mail address	2009-07-03 15:45:29 +01:00
include/asm	MIPS: Don't vmap things at address zero.	2010-04-30 20:52:41 +01:00
jazz	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	2010-03-30 22:02:32 +09:00
kernel	MIPS: Calculate proper ebase value for 64-bit kernels	2010-04-12 17:26:22 +01:00
lasat	MIPS: Nuke trailing blank lines	2010-02-27 12:53:14 +01:00
lib	MIPS: libgcc.h: Checkpatch cleanup	2010-04-12 17:26:15 +01:00
loongson	MIPS: Lemote 2F: Move printks out of port_access_lock.	2010-02-27 12:53:41 +01:00
math-emu	MIPS: Nuke trailing blank lines	2010-02-27 12:53:14 +01:00
mipssim	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	2010-03-30 22:02:32 +09:00
mm	MIPS: Fix __vmalloc() etc. on MIPS for non-GPL modules	2010-04-12 17:26:21 +01:00
mti-malta	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	2010-03-30 22:02:32 +09:00
nxp	MIPS: PNX8550: Fix build error, broken by:	2010-04-30 20:52:39 +01:00
oprofile	MIPS: Loongson: Remove pointless sample_lock from oprofile code.	2010-02-27 12:53:39 +01:00
pci	MIPS: Lemote 2F: Ensure atomic execution of _rdmsr and _wrmsr	2010-04-12 17:26:12 +01:00
pmc-sierra	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	2010-03-30 22:02:32 +09:00
power	MIPS: Loongson: Change the Email address of Wu Zhangjin	2010-02-27 12:53:12 +01:00
powertv	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	2010-03-30 22:02:32 +09:00
rb532	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	2010-03-30 22:02:32 +09:00
sgi-ip22	MIPS: Move several variables from .bss to .init.data	2009-12-17 01:57:27 +00:00
sgi-ip27	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	2010-03-30 22:02:32 +09:00
sgi-ip32	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	2010-03-30 22:02:32 +09:00
sibyte	MIPS: Sibyte: Apply M3 workaround only on affected chip types and versions.	2010-04-12 17:26:19 +01:00
sni	MIPS: SNI: Convert sni_rm200_i8259A_lock to raw spinlock.	2010-02-27 12:53:39 +01:00
txx9	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	2010-03-30 22:02:32 +09:00
vr41xx	MIPS: VR41xx: Use strlcat() for the command line arguments	2010-01-12 18:19:30 +01:00
Kconfig	pci-dma: mips: use include/linux/pci-dma.h	2010-03-12 15:52:41 -08:00
Kconfig.debug	MIPS: Crazy spinlock speed test.	2010-02-27 12:53:42 +01:00
Makefile	MIPS: Loongson: arch/mips/Makefile: Add missing whitespace	2010-02-27 12:53:11 +01:00