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2011-03-17unicore32 io: redefine __REG(x) and re-use readl/writel funcsGuanXuetao
-- by advice of Arnd Bergmann Signed-off-by: Guan Xuetao <gxt@mprc.pku.edu.cn> Reviewed-by: Arnd Bergmann <arnd@arndb.de>
2011-03-17unicore32 upgrade to v2.6.38-rc5: add one more paramter for pte_alloc_map callGuanXuetao
Signed-off-by: Guan Xuetao <gxt@mprc.pku.edu.cn>
2011-03-17unicore32: rename PKUNITY_IOSPACE_BASE to PKUNITY_MMIO_BASEGuanXuetao
for the term IOSPACE normally refers to the PCI PIO space -- by advice with Arnd Bergmann Signed-off-by: Guan Xuetao <gxt@mprc.pku.edu.cn>
2011-03-17unicore32: modify function names and parameters for irq_chipsGuanXuetao
-- by advice with Thomas Gleixner Signed-off-by: Guan Xuetao <gxt@mprc.pku.edu.cn>
2011-03-17unicore32: remove unused lines in arch/unicore32/include/asm/irq.hGuanXuetao
Signed-off-by: Guan Xuetao <gxt@mprc.pku.edu.cn>
2011-03-16sparc32: Fix might-be-used-uninitialized warning in do_sparc_fault().David S. Miller
When we try to handle vmalloc faults, we can take a code path which uses "code" before we actually set it. Amusingly gcc-3.3 notices this yet gcc-4.x does not. Reported-by: Bob Breuer <breuerr@mc.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-03-17unicore32 time.c: change calculate method for clock_event_deviceGuanXuetao
apply clockevents_calc_mult_shift() to get rid of shift assignment and mult calculation for osmr0 -- by advice with Thomas Gleixner Signed-off-by: Guan Xuetao <gxt@mprc.pku.edu.cn>
2011-03-16sparc: Fix .size directive for do_int_loadBen Hutchings
gas used to accept (and ignore?) .size directives which referred to undefined symbols, as this does. In binutils 2.21 these are treated as errors. Signed-off-by: Ben Hutchings <ben@decadent.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-03-16sparc64: Fix build errors with gcc-4.6.0David S. Miller
Most of the warnings emitted (we fail arch/sparc file builds with -Werror) were legitimate but harmless, however one case (n2_pcr_write) was a genuine bug. Based almost entirely upon a patch by Sam Ravnborg. Reported-by: Dennis Gilmore <dennis@ausil.us> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-03-17unicore32 machine related files: pci bus handlingGuanXuetao
This patch implements arch-specific pci bus driver. Signed-off-by: Guan Xuetao <gxt@mprc.pku.edu.cn>
2011-03-16sparc32,sun4m: percpu and global register definitions moved to irq.hSam Ravnborg
entry.S access percpu + global data defined in sun4m_irq.c - so move the types to irq.h. This makes sparse happy and allow us to utilize asm-offsets later. Also updated a few comments in the sun4m_irq.c file. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-03-17unicore32 machine related files: hardware registersGuanXuetao
This patch adds all hardware registers definitions. Signed-off-by: Guan Xuetao <gxt@mprc.pku.edu.cn>
2011-03-16sparc32: introduce build_device_irqSam Ravnborg
build_device_irq() is used to encapsulate the plaform specific details when we build an irq. For now the default is a simple 1:1 but sun4d differs. This patch refactors functionality - but does not change the existing functionality. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-03-17unicore32 machine related files: core filesGuanXuetao
This patch adds machine related core files, also including build infrastructure. Signed-off-by: Guan Xuetao <gxt@mprc.pku.edu.cn> Reviewed-by: Arnd Bergmann <arnd@arndb.de>
2011-03-17unicore32 additional architecture files: boot processGuanXuetao
This patch implements booting process, including uncompression process. Signed-off-by: Guan Xuetao <gxt@mprc.pku.edu.cn> Reviewed-by: Arnd Bergmann <arnd@arndb.de>
2011-03-16sparc32: introduce sparc_irq_configSam Ravnborg
sparc_irq_config is used to hold the platform specific irq setup. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-03-17unicore32 additional architecture files: low-level lib: miscGuanXuetao
This patch implements the rest low-level libraries. Signed-off-by: Guan Xuetao <gxt@mprc.pku.edu.cn> Acked-by: Arnd Bergmann <arnd@arndb.de>
2011-03-16sparc32: fix build with leon or floppy enabledSam Ravnborg
Add a few includes back required to build with floppy enabled Fix declaration of trapbase_cpu* so it is now consistent Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-03-17unicore32 additional architecture files: low-level lib: uaccessGuanXuetao
This patch implements low-level uaccess libraries. Signed-off-by: Guan Xuetao <gxt@mprc.pku.edu.cn> Acked-by: Arnd Bergmann <arnd@arndb.de>
2011-03-16sparc: convert to clocksource_register_hz/khzJohn Stultz
This converts the sparc clocksources to use clocksource_register_hz/khz Signed-off-by: John Stultz <johnstul@us.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-03-17unicore32 additional architecture files: low-level lib: ocd debugGuanXuetao
This patch implements low-level debug libraries with On-Chip-Debugger hardware support. Signed-off-by: Guan Xuetao <gxt@mprc.pku.edu.cn> Acked-by: Arnd Bergmann <arnd@arndb.de>
2011-03-16sparc64: Sharpen address space randomization calculations.David S. Miller
A recent patch to the x86 randomization code caused me to take a quick look at what we do on sparc64, and in doing so I noticed that we sometimes calculate a non-page-aligned randomization value and stick it into mmap_base. I also noticed that since I copied the logic over from PowerPC, the powerpc code has tweaked the randomization ranges in ways that would benefit us as well. For one thing, we should allow up to at least 8MB of randomization otherwise huge-page regions when HPAGE_SIZE is 4MB never randomize at all. And on the 64-bit side we were using up to 4GB. Tone it down to 1GB as 4GB can result in a lot of address space wastage. Finally, make sure all computations are unsigned. Signed-off-by: David S. Miller <davem@davemloft.net>
2011-03-17unicore32 additional architecture files: ptrace handlingGuanXuetao
This patch adds ptrace support. Changed from previous version: 1. disable arch_has_single_step and remove single-step instruction handler 2. add 'Ross Biro 1/23/92' contributor information 3. clean unused codes Signed-off-by: Guan Xuetao <gxt@mprc.pku.edu.cn> Acked-by: Arnd Bergmann <arnd@arndb.de>
2011-03-16sparc32: irq_32.c cleanupSam Ravnborg
- drop filename in file header - drop unused includes - add KERN_* to printk - fix spaces => tabs - add spaces after reserved words - drop all externs, they are now in header files Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-03-17unicore32 additional architecture files: float point handlingGuanXuetao
This patch implements support for float point unit, which using UniCore-F64 FPU hardware in UniCore32 ISA. Signed-off-by: Guan Xuetao <gxt@mprc.pku.edu.cn> Acked-by: Arnd Bergmann <arnd@arndb.de>
2011-03-16sparc32, sun4d: add comment in empty statement in sun4d_request_irq()Sam Ravnborg
This looked like a bug to me. Add a comment so next reader is hopefully less confused. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-03-17unicore32 additional architecture files: pm related filesGuanXuetao
This patch adds pm related files, including hibernate and sleep supports. Signed-off-by: Guan Xuetao <gxt@mprc.pku.edu.cn> Acked-by: Arnd Bergmann <arnd@arndb.de>
2011-03-16sparc32,sun4d: drop unused code in sun4d_distribute_irqs()Sam Ravnborg
The preprocessor symbol was not defined and the code was therefore not in use. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-03-17unicore32 core architecture: signals handlingGuanXuetao
This patch implements signals. Signed-off-by: Guan Xuetao <gxt@mprc.pku.edu.cn>
2011-03-16sparc32,sun4d: irq, smp files cleanupSam Ravnborg
- drop filename in file header - drop unused includes - add description of sun4d interrupts (from davem) - add KERN_* to printk - fix spaces => tabs - add spaces after reserved words - fix indent of a whole code block in smp4d_boot_one_cpu() Note: two printk() was updated from debug to KERN_INFO in this code block - drop all externs, they are now in header files This is partly based on a patch from: David Miller <davem@davemloft.net> Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-03-17unicore32 core architecture: interrupts ang gpio handlingGuanXuetao
This patch implements interrupts and gpio handling. UniCore32 has 9 gpio interrupt sources. And gpio device operations are also here. Signed-off-by: Guan Xuetao <gxt@mprc.pku.edu.cn>
2011-03-17unicore32 core architecture: timer and time handlingGuanXuetao
This patch implements timer and time. RTC and PWM device drivers are also here. Signed-off-by: Guan Xuetao <gxt@mprc.pku.edu.cn>
2011-03-16sparc32,sun4m: irq, smp files cleanupSam Ravnborg
- drop filename in file header - drop unused includes - add description of sun4m interrupts (from davem) - add KERN_* to printk - fix spaces => tabs - add spaces after reserved words - drop all externs, they are now in header files This is partly based on a patch from: David Miller <davem@davemloft.net> Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-03-17unicore32 core architecture: mm related: consistent device DMA handlingGuanXuetao
This patch implements consistent device DMA handling of memory management. DMA device operations are also here. Signed-off-by: Guan Xuetao <gxt@mprc.pku.edu.cn> Reviewed-by: Arnd Bergmann <arnd@arndb.de>
2011-03-16sparc32,sun4c: irq file cleanupSam Ravnborg
- drop filename in header - drop unused includes - add description of sun4c interrupts (from davem) - add spaces after reserved words This is partly based on a patch from: David Miller <davem@davemloft.net> Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-03-17unicore32 core architecture: mm related: fault handlingGuanXuetao
This patch implements fault handling of memory management. Signed-off-by: Guan Xuetao <gxt@mprc.pku.edu.cn> Reviewed-by: Arnd Bergmann <arnd@arndb.de>
2011-03-16sparc32: add irq + smp declarations to headersSam Ravnborg
In preparation for cleaning up a number of files add declarations for irq and smp related data/functions to the relevant headers. This showed that the extern declaration of cputypval differed in the two files where it was used. As cputypval is defined like this: cputypval: .asciz "sun4c" the correct representation is a char array. Fix users to use the new declaration. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-03-17unicore32 core architecture: mm related: generic codesGuanXuetao
This patch includes generic codes for memory management. Signed-off-by: Guan Xuetao <gxt@mprc.pku.edu.cn> Reviewed-by: Arnd Bergmann <arnd@arndb.de>
2011-03-16sparc32: remove tick14.cSam Ravnborg
The two methods included in tick14.c was nop because the static variable linux_lvl14 was always NULL. So remove the file and callers. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-03-17unicore32 core architecture: process/thread related codesGuanXuetao
This patch implements process/thread related codes. Backtrace and stacktrace are here. Signed-off-by: Guan Xuetao <gxt@mprc.pku.edu.cn> Reviewed-by: Arnd Bergmann <arnd@arndb.de>
2011-03-17unicore32 core architecture: low level entry and setup codesGuanXuetao
This patch implements low level entry and setup codes. Signed-off-by: Guan Xuetao <gxt@mprc.pku.edu.cn> Reviewed-by: Arnd Bergmann <arnd@arndb.de>
2011-03-17unicore32 core architecture: processor and system headersGuanXuetao
This patch includes processor and system headers. System call interface is here. We used the syscall interface the same as asm-generic version. Signed-off-by: Guan Xuetao <gxt@mprc.pku.edu.cn> Reviewed-by: Arnd Bergmann <arnd@arndb.de>
2011-03-16sparc32/leon: FPU-FSR only available when FPU presentDaniel Hellstrom
Signed-off-by: Daniel Hellstrom <daniel@gaisler.com> Acked-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-03-17unicore32 core architecture: generic elf and ksyms stuffGuanXuetao
This patch includes some generic stuff including elf and ksyms. Because all one-line asm-generic headers are auto-generated by ASM_GENERIC_HEADERS in arch/unicore32/Makefile, so the rest seems very little. ELF handling functions and module handling functions are also here. Signed-off-by: Guan Xuetao <gxt@mprc.pku.edu.cn> Reviewed-by: Arnd Bergmann <arnd@arndb.de>
2011-03-17unicore32 core architecture: build infrastructureGuanXuetao
This patch implements build infrastructure. Signed-off-by: Guan Xuetao <gxt@mprc.pku.edu.cn> Reviewed-by: Arnd Bergmann <arnd@arndb.de>
2011-03-16SPARC/LEON: power down instruction different of different LEONsDaniel Hellstrom
The way a LEON is powered down is implemented differently depending on CHIP type. The AMBA Plug&Play system ID tells revision of GRLIB and CHIP. This is for example needed by the GR-LEON4-ITX board and the UT699. Previously the power down support for LEON was limited to SMP, now both SMP and UP systems use the instruction. Signed-off-by: Daniel Hellstrom <daniel@gaisler.com> Acked-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-03-16sparc32: added U-Boot build target: uImageDaniel Hellstrom
This is only for LEON as u-boot for SPARC only supports LEON. Signed-off-by: Daniel Hellstrom <daniel@gaisler.com> Acked-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-03-16sparc64: rename virt_irq => irq - IISam Ravnborg
The generic irq support uses the term 'irq' for the allocated irq number. Fix it so sparc64 use the same term for an irq as the generic irq support does. For a naive reader this is less confusing. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-03-16sparc64: rename virt_irq => irq - ISam Ravnborg
The generic irq support uses the term 'irq' for the allocated irq number. Fix it so sparc64 use the same term for an irq as the generic irq support does. For a naive reader this is less confusing. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-03-16sparc64: use up-to-data genirq functionsSam Ravnborg
Drop all uses of deprecated genirq features. The irq_set_affinity() call got a third paramter 'force' which is unused. For now genirq does not use this paramter and it is ignored by sparc. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Josip Rodin <joy@entuzijast.net> Signed-off-by: David S. Miller <davem@davemloft.net>
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