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82622284dd
linux/arch/mips
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David Daney 82622284dd MIPS: Put PGD in C0_CONTEXT for 64-bit R2 processors. 
Processors that support the mips64r2 ISA can in four instructions
convert a shifted PGD pointer stored in the upper bits of c0_context
into a usable pointer.  By doing this we save a memory load and
associated potential cache miss in the TLB exception handlers.

Since the upper bits of c0_context were holding the CPU number, we
move this to the upper bits of c0_xcontext which doesn't have enough
bits to hold the PGD pointer, but has plenty for the CPU number.

Signed-off-by: David Daney <ddaney@caviumnetworks.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-12-17 01:57:01 +00:00
..
alchemy MIPS: Alchemy: Fix hang with high-frequency edge interrupts 2009-11-02 12:00:08 +01:00
ar7 MIPS: AR7: register watchdog device only if enabled in hw configuration 2009-11-02 12:00:03 +01:00
basler/excite MIPS: Excite: Get rid of BKL. 2009-09-30 21:47:01 +02:00
bcm47xx MIPS: Replace all usages of CL_SIZE by COMMAND_LINE_SIZE 2009-12-17 01:56:56 +00:00
bcm63xx MIPS: bcm63xx: Set the correct BCM3302 CPU name 2009-11-02 12:00:07 +01:00
boot MIPS: Add support for GZIP / BZIP2 / LZMA compressed kernel images 2009-12-17 01:56:56 +00:00
cavium-octeon MIPS: Octeon: Add platform devices MGMT Ethernet ports. 2009-12-17 01:56:59 +00:00
cobalt Update Yoichi Yuasa's e-mail address 2009-07-03 15:45:29 +01:00
configs MIPS: TXx9: Update rbtx49xx_defconfig 2009-11-13 18:10:37 +01:00
dec Merge branch 'timers-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2009-09-18 09:15:24 -07:00
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: Put PGD in C0_CONTEXT for 64-bit R2 processors. 2009-12-17 01:57:01 +00:00
jazz MIPS: Add IRQF_TIMER flag for timer interrupts 2009-11-02 12:00:02 +01:00
kernel MIPS: Replace all usages of CL_SIZE by COMMAND_LINE_SIZE 2009-12-17 01:56:56 +00:00
lasat MIPS: Replace all usages of CL_SIZE by COMMAND_LINE_SIZE 2009-12-17 01:56:56 +00:00
lib MIPS: Fix __ndelay build error and add 'ull' suffix for 32-bit kernel 2009-06-17 11:06:24 +01:00
loongson vfs: Implement proper O_SYNC semantics 2009-12-10 15:02:50 +01:00
math-emu Merge branch 'for-next' into for-linus 2009-12-07 18:36:35 +01:00
mipssim cpumask: arch_send_call_function_ipi_mask: mips 2009-09-24 09:34:45 +09:30
mm MIPS: Put PGD in C0_CONTEXT for 64-bit R2 processors. 2009-12-17 01:57:01 +00:00
mti-malta MIPS: Replace all usages of CL_SIZE by COMMAND_LINE_SIZE 2009-12-17 01:56:56 +00:00
nxp MIPS: Add IRQF_TIMER flag for timer interrupts 2009-11-02 12:00:02 +01:00
oprofile MIPS: Oprofile: Rename cpu_type from godson2 to loongson2 2009-11-02 12:00:08 +01:00
pci MIPS: MSP71xx: request_irq() failure ignored in msp_pcibios_config_access() 2009-09-30 21:47:01 +02:00
pmc-sierra cpumask: arch_send_call_function_ipi_mask: mips 2009-09-24 09:34:45 +09:30
power MIPS: Use PAGE_SIZE in assembly instead of _PAGE_SIZE. 2009-09-17 20:07:48 +02:00
rb532 MIPS: Replace all usages of CL_SIZE by COMMAND_LINE_SIZE 2009-12-17 01:56:56 +00:00
sgi-ip22 MIPS: IP22, IP28: Build with -Werror 2009-09-17 20:07:44 +02:00
sgi-ip27 MIPS: Add IRQF_TIMER flag for timer interrupts 2009-11-02 12:00:02 +01:00
sgi-ip32 MIPS: IP32: Remove unnecessary if not even harmful volatile keywords. 2009-05-22 13:52:06 +01:00
sibyte MIPS: Replace all usages of CL_SIZE by COMMAND_LINE_SIZE 2009-12-17 01:56:56 +00:00
sni MIPS: Add IRQF_TIMER flag for timer interrupts 2009-11-02 12:00:02 +01:00
txx9 MIPS: Replace all usages of CL_SIZE by COMMAND_LINE_SIZE 2009-12-17 01:56:56 +00:00
vr41xx genirq: Convert irq_desc.lock to raw_spinlock 2009-12-14 23:55:33 +01:00
Kconfig MIPS: Put PGD in C0_CONTEXT for 64-bit R2 processors. 2009-12-17 01:57:01 +00:00
Kconfig.debug MIPS: Kconfig: Fix the arch-specific header path 2008-12-12 18:12:23 +00:00
Makefile MIPS: Add support for GZIP / BZIP2 / LZMA compressed kernel images 2009-12-17 01:56:56 +00:00