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5642530651
kernel-ark/arch/sparc64/kernel
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David S. Miller 5642530651 [SPARC64]: Add CONFIG_DEBUG_PAGEALLOC support. 
The trick is that we do the kernel linear mapping TLB miss starting
with an instruction sequence like this:

	ba,pt		%xcc, kvmap_load
	 xor		%g2, %g4, %g5

succeeded by an instruction sequence which performs a full page table
walk starting at swapper_pg_dir.

We first take over the trap table from the firmware.  Then, using this
constant PTE generation for the linear mapping area above, we build
the kernel page tables for the linear mapping.

After this is setup, we patch that branch above into a "nop", which
will cause TLB misses to fall through to the full page table walk.

With this, the page unmapping for CONFIG_DEBUG_PAGEALLOC is trivial.

Signed-off-by: David S. Miller <davem@davemloft.net>
2005-09-25 16:46:57 -07:00
..
asm-offsets.c kbuild: frv,m32r,sparc64 introduce fake asm-offsets.h file 2005-09-09 22:47:53 +02:00
auxio.c [SPARC64]: Get rid of fast IRQ feature. 2005-06-27 17:04:45 -07:00
binfmt_aout32.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
binfmt_elf32.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
central.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
chmc.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
cpu.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
devices.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
dtlb_backend.S [SPARC64]: Kill SZ_BITS define from dtlb_backend.S 2005-09-21 19:23:48 -07:00
dtlb_base.S [SPARC64]: Move kernel TLB miss handling into a seperate file. 2005-09-21 18:50:51 -07:00
dtlb_prot.S Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
ebus.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
entry.S [SPARC64]: Move kernel TLB miss handling into a seperate file. 2005-09-21 18:50:51 -07:00
etrap.S Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
head.S [SPARC64]: Add CONFIG_DEBUG_PAGEALLOC support. 2005-09-25 16:46:57 -07:00
idprom.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
init_task.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
ioctl32.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
iommu_common.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
iommu_common.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
irq.c [SPARC64]: Privatize sun5_timer. 2005-07-24 19:36:13 -07:00
isa.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
itlb_base.S Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
kprobes.c [PATCH] Kprobes: prevent possible race conditions sparc64 changes 2005-09-07 16:58:00 -07:00
ktlb.S [SPARC64]: Add CONFIG_DEBUG_PAGEALLOC support. 2005-09-25 16:46:57 -07:00
Makefile [SPARC64]: Move kernel unaligned trap handlers into assembler file. 2005-08-19 15:55:33 -07:00
module.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
pci_common.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
pci_impl.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
pci_iommu.c [SPARC64]: More fully work around Spitfire Errata 51. 2005-08-29 12:46:22 -07:00
pci_psycho.c [PATCH] Make sparc64 use setup-res.c 2005-09-08 14:57:25 -07:00
pci_sabre.c [PATCH] Make sparc64 use setup-res.c 2005-09-08 14:57:25 -07:00
pci_schizo.c [SPARC64]: Fix mask formation in tomatillo_wsync_handler() 2005-09-24 23:06:14 -07:00
pci.c [PATCH] Make sparc64 use setup-res.c 2005-09-08 14:57:25 -07:00
power.c [PATCH] Don't export machine_restart, machine_halt, or machine_power_off. 2005-07-26 14:35:42 -07:00
process.c [PATCH] spinlock consolidation 2005-09-10 10:06:21 -07:00
ptrace.c [SPARC64]: Move DCACHE_ALIASING_POSSIBLE define to asm/page.h 2005-09-19 20:11:57 -07:00
rtrap.S [SPARC64]: Eliminate irq_cpustat_t. 2005-08-29 22:46:43 -07:00
sbus.c [SPARC64]: More fully work around Spitfire Errata 51. 2005-08-29 12:46:22 -07:00
semaphore.c [SPARC64]: Avoid membar instructions in delay slots. 2005-06-27 15:42:04 -07:00
setup.c [SPARC64]: Kill unused variable in setup_arch() 2005-09-23 11:54:43 -07:00
signal32.c [SPARC64]: More fully work around Spitfire Errata 51. 2005-08-29 12:46:22 -07:00
signal.c [PATCH] convert signal handling of NODEFER to act like other Unix boxes. 2005-08-29 10:03:11 -07:00
smp.c [SPARC64]: More fully work around Spitfire Errata 51. 2005-08-29 12:46:22 -07:00
sparc64_ksyms.c [LIB]: Consolidate _atomic_dec_and_lock() 2005-09-14 21:47:01 -07:00
starfire.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
sunos_ioctl32.c [SPARC64]: Fix set/get MTU cases in sunos_ioctl() 2005-09-06 20:12:15 -07:00
sys32.S [SPARC]: Add ioprio system call support. 2005-07-10 15:11:45 -07:00
sys_sparc32.c [PATCH] remove duplicated sys_open32() code from 64bit archs 2005-09-07 16:57:43 -07:00
sys_sparc.c [PATCH] Avoiding mmap fragmentation 2005-06-21 18:46:16 -07:00
sys_sunos32.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
systbls.S [SPARC]: Add inotify syscall entries. 2005-07-27 14:14:39 -07:00
time.c [PATCH] NTP: ntp-helper functions 2005-09-07 16:57:34 -07:00
trampoline.S [SPARC64]: Rewrite bootup sequence. 2005-09-22 20:11:33 -07:00
traps.c [SPARC64]: Revamp Spitfire error trap handling. 2005-08-29 12:45:11 -07:00
ttable.S [SPARC64]: Revamp Spitfire error trap handling. 2005-08-29 12:45:11 -07:00
una_asm.S [SPARC64]: Handle little-endian unaligned loads/stores correctly. 2005-09-19 19:56:06 -07:00
unaligned.c [SPARC64]: Handle little-endian unaligned loads/stores correctly. 2005-09-19 19:56:06 -07:00
us2e_cpufreq.c [SPARC64]: Fix 2 bugs in cpufreq drivers. 2005-08-18 14:35:38 -07:00
us3_cpufreq.c [SPARC64]: Fix 2 bugs in cpufreq drivers. 2005-08-18 14:35:38 -07:00
vmlinux.lds.S [SPARC64]: Add CONFIG_DEBUG_PAGEALLOC support. 2005-09-25 16:46:57 -07:00
winfixup.S [SPARC64]: Revamp Spitfire error trap handling. 2005-08-29 12:45:11 -07:00