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2007-02-06[MIPS] Alchemy: Fix bunch of warningsRalf Baechle2-13/+18
CC arch/mips/au1000/common/pci.o arch/mips/au1000/common/pci.c:42: warning: large integer implicitly truncated to unsigned type arch/mips/au1000/common/pci.c:43: warning: large integer implicitly truncated to unsigned type arch/mips/au1000/common/pci.c:49: warning: large integer implicitly truncated to unsigned type arch/mips/au1000/common/pci.c:50: warning: large integer implicitly truncated to unsigned type arch/mips/au1000/common/pci.c: In function ‘au1x_pci_setup’: arch/mips/au1000/common/pci.c:82: warning: ISO C90 forbids mixed declarations and code Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-02-06[MIPS] Whitespace cleanups.Ralf Baechle12-56/+56
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-02-06[MIPS] Alchemy: Fix bunch more warnings.Ralf Baechle1-8/+11
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-02-06[MIPS] Use ARRAY_SIZE macro when appropriateAhmed S. Darwish5-7/+10
Signed-off-by: Ahmed S. Darwish <darwish.07@gmail.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-02-06[MIPS] Fix some whitespace damageJan Altenberg1-4/+4
Signed-off-by: Jan Altenberg <jan@linutronix.de> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-02-06[MIPS] Add missing ifdef arch/mips/pmc-sierra/yosemite/setup.cMathieu Desnoyers1-0/+2
early_serial_setup is only defined when CONFIG_SERIAL_8250 is set. Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-02-06[MIPS] Fix pb1200/irqmap.c and apply some missed patchesAtsushi Nemoto1-22/+10
pb1200/irqmap.c had been broken a while due to non-named initializer and had missed some recent IRQ related changes. Apply these commits to this file. [MIPS] IRQ cleanups commit 1603b5aca4f15b34848fb5594d0c7b6333b99144 [MIPS] use generic_handle_irq, handle_level_irq, handle_percpu_irq commit 1417836e81c0ab8f5a0bfeafa90d3eaa41b2a067 [MIPS] Compile __do_IRQ() when really needed commit e77c232cfc6e1250b2916a7c69225d6634d05a49 Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-02-06[MIPS] Do not allow oprofile to be enabled on SMTC.Ralf Baechle1-1/+1
Oprofile cannot work on SMTC due to the limited number of counters. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-02-06[MIPS] Remove superfluous "ifdef CONFIG_KGDB".Robert P. J. Day3-12/+0
Given that the Makefiles involved already have conditional compilation of the form: obj-$(CONFIG_KGDB) += dbg_io.o there seems to be little value for the dbg_io.c source files to check that config variable yet again. Signed-off-by: Robert P. J. Day <rpjday@mindspring.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-02-06[MIPS] vpe_elfload and vpe_run are only used locally, make them static.Ralf Baechle1-2/+2
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-02-06[MIPS] SMTC: remove unused atomic_postclearRalf Baechle1-22/+0
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-02-06[MIPS] Move some kernel globals from asm file to C file.Atsushi Nemoto4-29/+18
This get rid of some undesirable hole in BSS section due to random order of placement. Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-02-06[MIPS] Remove _fdata from asm-mips/sections.hAtsushi Nemoto1-2/+0
There is no _fdata symbol in kernel. Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-02-06[MIPS] Kconfig: Provide sane NR_CPUS defaults for more configurationsRalf Baechle1-3/+32
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-02-06[MIPS] vr41xx: Use symbolic names for IRQ numersYoichi Yuasa1-8/+8
Signed-off-by: Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-02-06[MIPS] use name instead of typename for each irq_chipAtsushi Nemoto32-56/+56
The "typename" field was obsoleted by the "name" field. Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-02-06[MIPS] Kconfig: Move some entries to appropriate menuAtsushi Nemoto1-34/+34
Currently KEXEC is in "Machine selection", SECCOMP, PM, APM are in "Executable file formats" menu. Move KEXEC and SECCOMP to "Kernel type" and PM, APM to new "Power management options" menu. Also replace "config PM" with kernel/power/Kconfig. Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-02-06[MIPS] vr41xx: add MACINT controlsYoichi Yuasa1-1/+26
This patch has added MACINT controls. They are necessary for VR4133 ethernet driver. Signed-off-by: Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-02-06[MIPS] FLATMEM: introduce PHYS_OFFSET.Franck Bui-Huu3-10/+31
The old code was assuming that min_low_pfn was always 0. This means that platforms having a big hole at their memory start paid the price of wasting some memory for the allocation of unused entries in mem_map[]. This patch prevents this waste. It introduces PHYS_OFFSET define which is the start of the physical memory and uses it wherever needed. Specially when converting physical/virtual addresses into virtual/physical ones. Currently all platforms defines PHYS_OFFSET to 0. Signed-off-by: Franck Bui-Huu <fbuihuu@gmail.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-02-06[MIPS] Setup min_low_pfn/max_low_pfn correctlyFranck Bui-Huu3-21/+39
This patch makes a better usage of these two globals. 'min_low_pfn' is now correctly setup for all configs, which allow us to rely on it in boot memory code init. Signed-off-by: Franck Bui-Huu <fbuihuu@gmail.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-02-06[MIPS] Unify memset.SAtsushi Nemoto5-152/+31
The 32-bit version and 64-bit version are almost equal. Unify them. This makes further improvements (for example, supporting CDEX, etc.) easier. Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-02-06[MIPS] prom_free_prom_memory cleanupAtsushi Nemoto31-114/+44
Current prom_free_prom_memory() implementations are almost same as free_init_pages(), or no-op. Make free_init_pages() extern (again) and make prom_free_prom_memory() use it. Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-02-06[MIPS] Make I8259A_IRQ_BASE customizableAtsushi Nemoto10-97/+49
Move I8259A_IRQ_BASE from asm/i8259.h to asm/mach-generic/irq.h and make it really customizable. And remove I8259_IRQ_BASE declared on some platforms. Currently only NEC_CMBVR4133 is using custom I8259A_IRQ_BASE value. Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-02-06[MIPS] Define MIPS_CPU_IRQ_BASE in generic headerAtsushi Nemoto40-98/+128
The irq_base for {mips,rm7k,rm9k}_cpu_irq_init() are constant on all platforms and are same value on most platforms (0 or 16, depends on CONFIG_I8259). Define them in asm-mips/mach-generic/irq.h and make them customizable. This will save a few cycle on each CPU interrupt. A good side effect is removing some dependencies to MALTA in generic SMTC code. Although MIPS_CPU_IRQ_BASE is customizable, this patch changes irq mappings on DDB5477, EMMA2RH and MIPS_SIM, since really customizing them might cause some header dependency problem and there seems no good reason to customize it. So currently only VR41XX is using custom MIPS_CPU_IRQ_BASE value, which is 0 regardless of CONFIG_I8259. Testing this patch on those platforms is greatly appreciated. Thank you. Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-02-06[MIPS] Remove unused rm9k_cpu_irq_disable()Atsushi Nemoto1-9/+0
rm9k_cpu_irq_disable() is unused since commit 1603b5aca4f15b34848fb5594d0c7b6333b99144. Remove it. Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-02-06[GFS2] nfsd readdirplus assertion failureWendy Cheng1-5/+11
Glock assertion failure found in '07 NFS connectathon. One of the NFSDs is doing a "readdirplus" procedure call. It passes the logic into gfs2_readdir() where it obtains its directory inode glock. This is then followed by filehandle construction that invokes lookup code. It hits the assertion failure while trying to obtain the inode glock again inside gfs2_drevalidate(). This patch bypasses the recursive glock call if caller already holds the lock. Signed-off-by: S. Wendy Cheng <wcheng@redhat.com> Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
2007-02-05[IA64] swiotlb abstraction (e.g. for Xen)Jan Beulich3-35/+159
Add abstraction so that the file can be used by environments other than IA64 and EM64T, namely for Xen. Signed-off-by: Jan Beulich <jbeulich@novell.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Tony Luck <tony.luck@intel.com>
2007-02-05[IA64] swiotlb cleanupJan Beulich2-25/+33
- add proper __init decoration to swiotlb's init code (and the code calling it, where not already the case) - replace uses of 'unsigned long' with dma_addr_t where appropriate - do miscellaneous simplicfication and cleanup Signed-off-by: Jan Beulich <jbeulich@novell.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Tony Luck <tony.luck@intel.com>
2007-02-05[IA64] make swiotlb use bus_to_virt/virt_to_busJan Beulich1-16/+17
Convert all phys_to_virt/virt_to_phys uses to bus_to_virt/virt_to_bus, as is what is meant and what is needed in (at least) some virtualized environments like Xen. Signed-off-by: Jan Beulich <jbeulich@novell.com> Acked-by: Muli Ben-Yehuda <muli@il.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Tony Luck <tony.luck@intel.com>
2007-02-05[IA64] swiotlb bug fixesJan Beulich4-28/+33
This patch fixes - marking I-cache clean of pages DMAed to now only done for IA64 - broken multiple inclusion in include/asm-x86_64/swiotlb.h - missing call to mark_clean in swiotlb_sync_sg() - a (perhaps only theoretical) issue in swiotlb_dma_supported() when io_tlb_end is exactly at the end of memory Signed-off-by: Jan Beulich <jbeulich@novell.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Tony Luck <tony.luck@intel.com>
2007-02-05[IA64] Hook up getcpu system call for IA64Fenghua Yu2-1/+5
getcpu system call returns cpu# and node# on which this system call and its caller are running. This patch hooks up its implementation on IA64. Signed-off-by: Fenghua Yu <fenghua.yu@intel.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
2007-02-05[IA64] clean up sparsemem memory_present callBob Picco1-33/+3
Eliminate arch specific memory_present call ia64 NUMA by utilizing sparse_memory_present_with_active_regions. Acked-by: Mel Gorman <mel@csn.ul.ie> Signed-off-by: Bob Picco <bob.picco@hp.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Tony Luck <tony.luck@intel.com>
2007-02-05[IA64] show_mem() for IA64 sparsemem NUMAGeorge Beshers1-26/+48
On the ia64 architecture only this patch upgrades show_mem() for sparse memory to be the same as it was for discontig memory. It has been shown to work on NUMA and flatmem architectures. Signed-off-by: George Beshers <gbeshers@sgi.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Tony Luck <tony.luck@intel.com>
2007-02-05[IA64] missing exports hwsw_sync_...Jan Beulich1-0/+4
Add missing exports to allow several drivers to be built as module with CONFIG_IA64_HP_ZX1_SWIOTLB. Signed-off-by: Jan Beulich <jbeulich@novell.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Tony Luck <tony.luck@intel.com>
2007-02-05[IA64] virt_to_page() can be called with NULL argKirill Korotaev1-1/+2
It does not return NULL when arg is NULL. Signed-off-by: Alexey Kuznetsov <kuznet@ms2.inr.ac.ru> Signed-off-by: Kirill Korotaev <dev@openvz.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Tony Luck <tony.luck@intel.com>
2007-02-05[IA64] alignment bug in ldscriptKirill Korotaev1-0/+1
Occasionally the FSYS_RETURN patch list can have an odd length, causing other data structures to get out of alignment. In OpenVZ it is odd and we get misaligned kernel image, which does not boot. Signed-off-by: Alexey Kuznetsov <kuznet@ms2.inr.ac.ru> Signed-off-by: Kirill Korotaev <dev@openvz.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Tony Luck <tony.luck@intel.com>
2007-02-05[IA64] register memory ranges in a consistent mannerBob Picco3-4/+22
While pursuing and unrelated issue with 64Mb granules I noticed a problem related to inconsistent use of add_active_range. There doesn't appear any reason to me why FLATMEM versus DISCONTIG_MEM should register memory to add_active_range with different code. So I've changed the code into a common implementation. The other subtle issue fixed by this patch was calling add_active_range in count_node_pages before granule aligning is performed. We were lucky with 16MB granules but not so with 64MB granules. count_node_pages has reserved regions filtered out and as a consequence linked kernel text and data aren't covered by calls to count_node_pages. So linked kernel regions wasn't reported to add_active_regions. This resulted in free_initmem causing numerous bad_page reports. This won't occur with this patch because now all known memory regions are reported by register_active_ranges. Acked-by: Mel Gorman <mel@csn.ul.ie> Signed-off-by: Bob Picco <bob.picco@hp.com> Acked-by: Simon Horman <horms@verge.net.au> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Tony Luck <tony.luck@intel.com>
2007-02-05[IA64] Enable SWIOTLB only when neededJan Beulich1-1/+4
Don't force CONFIG_SWIOTLB on when not actually needed (i.e. HP_ZX1 and SGI_SN2). Signed-off-by: Jan Beulich <jbeulich@novell.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
2007-02-05[IA64-SGI] Check for TIO errors on shub2 AltixRuss Anderson1-4/+12
The shub2 error interrupt handler must check for TIO errors. Signed-off-by: Russ Anderson (rja@sgi.com) Signed-off-by: Tony Luck <tony.luck@intel.com>
2007-02-05[IA64] remove bogus prototype ia64_esi_init()Alex Williamson1-1/+0
This function doesn't exist. Signed-off-by: Alex Williamson <alex.williamson@hp.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
2007-02-05[IA64] Clear IRQ affinity when unregisteredAlex Williamson1-0/+5
When we offline a CPU, migrate_irqs() tries to determine whether the affinity bits of the IRQ descriptor match any of the remaining online CPUs. If not, it fixes up the interrupt to point somewhere else. Unfortunately, if an IRQ is unregistered the IRQ descriptor may still have affinity to the CPU being offlined, but the no_irq_chip handler doesn't provide a set_affinity function. This causes us to hit the WARN_ON in migrate_irqs(). The easiest solution seems to be setting all the bits in the affinity mask when the last interrupt is removed from the vector. I hit this on an older kernel with Xen/ia64 using driver domains (so it probably needs more testing on upstream). Xen essentially uses the bind/unbind interface in sysfs to unregister a device from a driver and thus unregister the interrupt. Signed-off-by: Alex Williamson <alex.williamson@hp.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
2007-02-05[IA64] fix ACPI Kconfig issuesLen Brown1-2/+2
All IA64 systems except IA64_HP_SIM include ACPI and PCI. So prevent IA64 Kconfigs that try to do irritating things like building PCI without building ACPI. Signed-off-by: Len Brown <len.brown@intel.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
2007-02-05[IA64] Fix NULL-pointer dereference in ia64_machine_kexec()Bernhard Walle2-0/+7
This patch fixes a NULL-pointer dereference in ia64_machine_kexec(). The variable ia64_kimage is set in machine_kexec_prepare() which is called from sys_kexec_load(). If kdump wasn't configured before, ia64_kimage is NULL. machine_kdump_on_init() passes ia64_kimage() to machine_kexec() which assumes a valid value. The patch also adds a few sanity checks for the image to simplify debugging of similar problems in future. Signed-off-by: Bernhard Walle <bwalle@suse.de> Signed-off-by: Tony Luck <tony.luck@intel.com>
2007-02-05[IA64] find thread for user rbs addressbibo,mao1-1/+1
I encountered one problem when running ptrace test case the situation is this: traced process's syscall parameter needs to be accessed, but for sys_clone system call with clone_flag (CLONE_VFORK | CLONE_VM | SIGCHLD) parameter. This syscall's parameter accessing result is wrong. The reason is that vforked child process mm point is the same, but tgid is different. Without this patch find_thread_for_addr will return vforked process if vforked process is also stopped, but not the thread which calls vfork syscall. Signed-off-by: Tony Luck <tony.luck@intel.com>
2007-02-05[IA64] use snprintf() on features field of /proc/cpuinfoAron Griffis1-17/+14
Some patches have turned up on xen-devel recently to convert strcpy() to safer alternatives and so forth. While reviewing those patches I noticed that the features string building could be cleaned up. This patch uses snprintf() instead of strcpy() and direct character pointer manipulation. It makes the features string building safe and gets rid of the special case for features output in show_cpuinfo() Additionally I removed the (int) cast of ARRAY_SIZE, which seems to serve no purpose. Signed-off-by: Aron Griffis <aron@hp.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
2007-02-05[IA64] enable singlestep on system callbibo,mao2-7/+9
As is pointed out in http://www.gelato.org/community/view_linear.php?id=1_1036&from=authors&value=Ian%20Wienand#1_1039, if single step on break instruction, the break fault has higher priority than the single-step trap. When the break fault handler is entered, it advances the IP by 1 instruction so break instruction single-stepping is skipped, actually it is next instruction which is single stepped. This patch modifies this, it adds TIF_SINGLESTEP bit for thread flags, and generate a fake sigtrap when single stepping break instruction. Test case in attachment can verify this. Any comments is welcome. Signed-off-by: bibo, mao <bibo.mao@intel.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
2007-02-05[IA64] kexec: Move machine_shutdown from machine_kexec.c to process.cHorms2-13/+16
This moves the ia64 implementation of machine_shutdown() from machine_kexec.c to process.c, which is in keeping with the implelmentation on other architectures, and seems like a much more appropriate home for it. Signed-off-by: Simon Horman <horms@verge.net.au> Signed-off-by: Tony Luck <tony.luck@intel.com>
2007-02-05[S390] Avoid excessive inlining.Heiko Carstens46-354/+278
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2007-02-05[S390] Mark kernel text section read-only.Heiko Carstens5-11/+31
Set read-only flag in the page table entries for the kernel image text section. This will catch all instruction caused corruptions withing the text section. Instruction replacement via kprobes still works, since it bypasses now dynamic address translation. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2007-02-05[S390] Convert memory detection into C code.Heiko Carstens21-609/+598
Hopefully this will make it more maintainable and less error prone. Code makes use of search_exception_tables(). Since it calls this function before the kernel exeception table is sorted, there is an early call to sort_main_extable(). This way it's easy to use the already present infrastructure of fixup sections. Also this would allows to easily convert the rest of head[31|64].S into C code. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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