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2009-05-01perf_counter: fix nmi-watchdog interactionPeter Zijlstra
When we don't have any perf-counters active, don't act like we know what the NMI is for. [ Impact: fix hard hang with nmi_watchdog=2 ] Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Paul Mackerras <paulus@samba.org> Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com> LKML-Reference: <20090501102533.109867793@chello.nl> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-04-30Merge branch 'core/signal' into perfcounters/coreThomas Gleixner
This is necessary to avoid the conflict of syscall numbers. Conflicts: arch/x86/ia32/ia32entry.S arch/x86/include/asm/unistd_32.h arch/x86/include/asm/unistd_64.h Fixes up the borked syscall numbers of perfcounters versus preadv/pwritev as well. Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2009-04-30x86: hookup sys_rt_tgsigqueueinfoThomas Gleixner
Make the new sys_rt_tgsigqueueinfo available for x86. Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2009-04-29perf_counter, x86: rename bitmasks to ->used_mask and ->active_maskRobert Richter
Standardize on explicitly mentioning '_mask' in fields that are not plain flags but masks. This avoids typos like: if (cpuc->used) (which could easily slip through review unnoticed), while if a typo looks like this: if (cpuc->used_mask) it might get noticed during review. [ Impact: cleanup ] Signed-off-by: Robert Richter <robert.richter@amd.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Paul Mackerras <paulus@samba.org> LKML-Reference: <1241016956-24648-1-git-send-email-robert.richter@amd.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-04-29perf_counter: powerpc: allow use of limited-function countersPaul Mackerras
POWER5+ and POWER6 have two hardware counters with limited functionality: PMC5 counts instructions completed in run state and PMC6 counts cycles in run state. (Run state is the state when a hardware RUN bit is 1; the idle task clears RUN while waiting for work to do and sets it when there is work to do.) These counters can't be written to by the kernel, can't generate interrupts, and don't obey the freeze conditions. That means we can only use them for per-task counters (where we know we'll always be in run state; we can't put a per-task counter on an idle task), and only if we don't want interrupts and we do want to count in all processor modes. Obviously some counters can't go on a limited hardware counter, but there are also situations where we can only put a counter on a limited hardware counter - if there are already counters on that exclude some processor modes and we want to put on a per-task cycle or instruction counter that doesn't exclude any processor mode, it could go on if it can use a limited hardware counter. To keep track of these constraints, this adds a flags argument to the processor-specific get_alternatives() functions, with three bits defined: one to say that we can accept alternative event codes that go on limited counters, one to say we only want alternatives on limited counters, and one to say that this is a per-task counter and therefore events that are gated by run state are equivalent to those that aren't (e.g. a "cycles" event is equivalent to a "cycles in run state" event). These flags are computed for each counter and stored in the counter->hw.counter_base field (slightly wonky name for what it does, but it was an existing unused field). Since the limited counters don't freeze when we freeze the other counters, we need some special handling to avoid getting skew between things counted on the limited counters and those counted on normal counters. To minimize this skew, if we are using any limited counters, we read PMC5 and PMC6 immediately after setting and clearing the freeze bit. This is done in a single asm in the new write_mmcr0() function. The code here is specific to PMC5 and PMC6 being the limited hardware counters. Being more general (e.g. having a bitmap of limited hardware counter numbers) would have meant more complex code to read the limited counters when freezing and unfreezing the normal counters, with conditional branches, which would have increased the skew. Since it isn't necessary for the code to be more general at this stage, it isn't. This also extends the back-ends for POWER5+ and POWER6 to be able to handle up to 6 counters rather than the 4 they previously handled. Signed-off-by: Paul Mackerras <paulus@samba.org> Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Robert Richter <robert.richter@amd.com> LKML-Reference: <18936.19035.163066.892208@cargo.ozlabs.ibm.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-04-29perf_counter: add/update copyrightsIngo Molnar
Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-04-29perf_counter, x86: remove unused function argument in intel_pmu_get_status()Robert Richter
The mask argument is unused and thus can be removed. [ Impact: cleanup ] Signed-off-by: Robert Richter <robert.richter@amd.com> Cc: Paul Mackerras <paulus@samba.org> Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl> LKML-Reference: <1241002046-8832-29-git-send-email-robert.richter@amd.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-04-29perf_counter, x86: remove vendor check in fixed_mode_idx()Robert Richter
The function fixed_mode_idx() is used generically. Now it checks the num_counters_fixed value instead of the vendor to decide if fixed counters are present. [ Impact: generalize code ] Signed-off-by: Robert Richter <robert.richter@amd.com> Cc: Paul Mackerras <paulus@samba.org> Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl> LKML-Reference: <1241002046-8832-28-git-send-email-robert.richter@amd.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-04-29perf_counter, x86: introduce max_period variableRobert Richter
In x86 pmus the allowed counter period to programm differs. This introduces a max_period value and allows the generic implementation for all models to check the max period. [ Impact: generalize code ] Signed-off-by: Robert Richter <robert.richter@amd.com> Cc: Paul Mackerras <paulus@samba.org> Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl> LKML-Reference: <1241002046-8832-27-git-send-email-robert.richter@amd.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-04-29perf_counter, x86: return raw count with x86_perf_counter_update()Robert Richter
To check on AMD cpus if a counter overflows, the upper bit of the raw counter value must be checked. This value is already internally available in x86_perf_counter_update(). Now, the value is returned so that it can be used directly to check for overflows. [ Impact: micro-optimization ] Signed-off-by: Robert Richter <robert.richter@amd.com> Cc: Paul Mackerras <paulus@samba.org> Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl> LKML-Reference: <1241002046-8832-26-git-send-email-robert.richter@amd.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-04-29perf_counter, x86: implement the interrupt handler for AMD cpusRobert Richter
This patch implements the interrupt handler for AMD performance counters. In difference to the Intel pmu, there is no single status register and also there are no fixed counters. This makes the handler very different and it is useful to make the handler vendor specific. To check if a counter is overflowed the upper bit of the counter is checked. Only counters where the active bit is set are checked. With this patch throttling is enabled for AMD performance counters. This patch also reenables Linux performance counters on AMD cpus. [ Impact: re-enable perfcounters on AMD CPUs ] Signed-off-by: Robert Richter <robert.richter@amd.com> Cc: Paul Mackerras <paulus@samba.org> Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl> LKML-Reference: <1241002046-8832-25-git-send-email-robert.richter@amd.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-04-29perf_counter, x86: change and remove pmu initialization checksRobert Richter
Some functions are only called if the pmu was proper initialized. That initalization checks can be removed. The way to check initialization changed too. Now, the pointer to the interrupt handler is checked. If it exists the pmu is initialized. This also removes a static variable and uses struct x86_pmu as only data source for the check. [ Impact: simplify code ] Signed-off-by: Robert Richter <robert.richter@amd.com> Cc: Paul Mackerras <paulus@samba.org> Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl> LKML-Reference: <1241002046-8832-24-git-send-email-robert.richter@amd.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-04-29perf_counter, x86: rework counter disable functionsRobert Richter
As for the enable function, this patch reworks the disable functions and introduces x86_pmu_disable_counter(). The internal function i/f in struct x86_pmu changed too. [ Impact: refactor and generalize code ] Signed-off-by: Robert Richter <robert.richter@amd.com> Cc: Paul Mackerras <paulus@samba.org> Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl> LKML-Reference: <1241002046-8832-23-git-send-email-robert.richter@amd.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-04-29perf_counter, x86: rework counter enable functionsRobert Richter
There is vendor specific code in generic x86 code, and there is vendor specific code that could be generic. This patch introduces x86_pmu_enable_counter() for x86 generic code. Fixed counter code for Intel is moved to Intel only functions. In the end, checks and calls via function pointers were reduced to the necessary. Also, the internal function i/f changed. [ Impact: refactor and generalize code ] Signed-off-by: Robert Richter <robert.richter@amd.com> Cc: Paul Mackerras <paulus@samba.org> Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl> LKML-Reference: <1241002046-8832-22-git-send-email-robert.richter@amd.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-04-29perf_counter, x86: consistent use of type int for counter indexRobert Richter
The type of counter index is sometimes implemented as unsigned int. This patch changes this to have a consistent usage of int. [ Impact: cleanup ] Signed-off-by: Robert Richter <robert.richter@amd.com> Cc: Paul Mackerras <paulus@samba.org> Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl> LKML-Reference: <1241002046-8832-21-git-send-email-robert.richter@amd.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-04-29perf_counter, x86: generic use of cpuc->activeRobert Richter
cpuc->active will now be used to indicate an enabled counter which implies also valid pointers of cpuc->counters[]. In contrast, cpuc->used only locks the counter, but it can be still uninitialized. [ Impact: refactor and generalize code ] Signed-off-by: Robert Richter <robert.richter@amd.com> Cc: Paul Mackerras <paulus@samba.org> Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl> LKML-Reference: <1241002046-8832-20-git-send-email-robert.richter@amd.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-04-29perf_counter, x86: rename cpuc->active_maskRobert Richter
This is to have a consistent naming scheme with cpuc->used. [ Impact: cleanup ] Signed-off-by: Robert Richter <robert.richter@amd.com> Cc: Paul Mackerras <paulus@samba.org> Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl> LKML-Reference: <1241002046-8832-19-git-send-email-robert.richter@amd.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-04-29perf_counter, x86: make x86_pmu_read() static inlineRobert Richter
[ Impact: micro-optimization ] Signed-off-by: Robert Richter <robert.richter@amd.com> Cc: Paul Mackerras <paulus@samba.org> Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl> LKML-Reference: <1241002046-8832-18-git-send-email-robert.richter@amd.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-04-29perf_counter, x86: make pmu version genericRobert Richter
This makes the use of the version variable generic. Also, some debug messages have been generalized. [ Impact: refactor and generalize code ] Signed-off-by: Robert Richter <robert.richter@amd.com> Cc: Paul Mackerras <paulus@samba.org> Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl> LKML-Reference: <1241002046-8832-17-git-send-email-robert.richter@amd.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-04-29perf_counter, x86: move counter parameters to struct x86_pmuRobert Richter
[ Impact: refactor and generalize code ] Signed-off-by: Robert Richter <robert.richter@amd.com> Cc: Paul Mackerras <paulus@samba.org> Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl> LKML-Reference: <1241002046-8832-16-git-send-email-robert.richter@amd.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-04-29perf_counter, x86: make x86_pmu data a static structRobert Richter
Instead of using a pointer to reference to the x86 pmu we now have one single data structure that is initialized at the beginning. This saves the pointer access when using this memory. [ Impact: micro-optimization ] Signed-off-by: Robert Richter <robert.richter@amd.com> Cc: Paul Mackerras <paulus@samba.org> Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl> LKML-Reference: <1241002046-8832-15-git-send-email-robert.richter@amd.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-04-29perf_counter, x86: modify initialization of struct x86_pmuRobert Richter
This patch adds an error handler and changes initialization of struct x86_pmu. No functional changes. Needed for follow-on patches. [ Impact: cleanup ] Signed-off-by: Robert Richter <robert.richter@amd.com> Cc: Paul Mackerras <paulus@samba.org> Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl> LKML-Reference: <1241002046-8832-14-git-send-email-robert.richter@amd.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-04-29perf_counter, x86: rename intel only functionsRobert Richter
[ Impact: cleanup ] Signed-off-by: Robert Richter <robert.richter@amd.com> Cc: Paul Mackerras <paulus@samba.org> Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl> LKML-Reference: <1241002046-8832-13-git-send-email-robert.richter@amd.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-04-29perf_counter, x86: rename __hw_perf_counter_set_period into ↵Robert Richter
x86_perf_counter_set_period [ Impact: cleanup ] Signed-off-by: Robert Richter <robert.richter@amd.com> Cc: Paul Mackerras <paulus@samba.org> Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl> LKML-Reference: <1241002046-8832-12-git-send-email-robert.richter@amd.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-04-29perf_counter, x86: remove ack_status() from struct x86_pmuRobert Richter
This function is Intel only and not necessary for AMD cpus. [ Impact: simplify code ] Signed-off-by: Robert Richter <robert.richter@amd.com> Cc: Paul Mackerras <paulus@samba.org> Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl> LKML-Reference: <1241002046-8832-11-git-send-email-robert.richter@amd.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-04-29perf_counter, x86: remove get_status() from struct x86_pmuRobert Richter
This function is Intel only and not necessary for AMD cpus. [ Impact: simplify code ] Signed-off-by: Robert Richter <robert.richter@amd.com> Cc: Paul Mackerras <paulus@samba.org> Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl> LKML-Reference: <1241002046-8832-10-git-send-email-robert.richter@amd.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-04-29perf_counter, x86: make interrupt handler model specificRobert Richter
This separates the perfcounter interrupt handler for AMD and Intel cpus. The AMD interrupt handler implementation is a follow-on patch. [ Impact: refactor and clean up code ] Signed-off-by: Robert Richter <robert.richter@amd.com> Cc: Paul Mackerras <paulus@samba.org> Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl> LKML-Reference: <1241002046-8832-9-git-send-email-robert.richter@amd.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-04-29perf_counter, x86: rename struct pmc_x86_ops into struct x86_pmuRobert Richter
This patch renames struct pmc_x86_ops into struct x86_pmu. It introduces a structure to describe an x86 model specific pmu (performance monitoring unit). It may contain ops and data. The new name of the structure fits better, is shorter, and thus better to handle. Where it was appropriate, names of function and variable have been changed too. [ Impact: cleanup ] Signed-off-by: Robert Richter <robert.richter@amd.com> Cc: Paul Mackerras <paulus@samba.org> Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl> LKML-Reference: <1241002046-8832-8-git-send-email-robert.richter@amd.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-04-29perfcounters: rename struct hw_perf_counter_ops into struct pmuRobert Richter
This patch renames struct hw_perf_counter_ops into struct pmu. It introduces a structure to describe a cpu specific pmu (performance monitoring unit). It may contain ops and data. The new name of the structure fits better, is shorter, and thus better to handle. Where it was appropriate, names of function and variable have been changed too. [ Impact: cleanup ] Signed-off-by: Robert Richter <robert.richter@amd.com> Cc: Paul Mackerras <paulus@samba.org> Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl> LKML-Reference: <1241002046-8832-7-git-send-email-robert.richter@amd.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-04-29perf_counter, x86: protect per-cpu variables with compile barriers onlyRobert Richter
Per-cpu variables needn't to be protected with cpu barriers (smp_wmb()). Protection is only needed for preemption on the same cpu (rescheduling or the nmi handler). This can be done using a compiler barrier only. [ Impact: micro-optimization ] Signed-off-by: Robert Richter <robert.richter@amd.com> Cc: Paul Mackerras <paulus@samba.org> Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl> LKML-Reference: <1241002046-8832-6-git-send-email-robert.richter@amd.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-04-29perf_counter, x86: rework pmc_amd_save_disable_all() and pmc_amd_restore_all()Robert Richter
MSR reads and writes are expensive. This patch adds checks to avoid its usage where possible. [ Impact: micro-optimization on AMD CPUs ] Signed-off-by: Robert Richter <robert.richter@amd.com> Cc: Paul Mackerras <paulus@samba.org> Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl> LKML-Reference: <1241002046-8832-5-git-send-email-robert.richter@amd.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-04-29perf_counter, x86: add default path to cpu detectionRobert Richter
This quits hw counter initialization immediately if no cpu is detected. [ Impact: cleanup ] Signed-off-by: Robert Richter <robert.richter@amd.com> Cc: Paul Mackerras <paulus@samba.org> Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl> LKML-Reference: <1241002046-8832-4-git-send-email-robert.richter@amd.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-04-29perf_counter, x86: remove X86_FEATURE_ARCH_PERFMON flag for AMD cpusRobert Richter
X86_FEATURE_ARCH_PERFMON is an Intel hardware feature that does not work on AMD CPUs. The flag is now only used in Intel specific code (especially initialization). [ Impact: refactor code ] Signed-off-by: Robert Richter <robert.richter@amd.com> Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Paul Mackerras <paulus@samba.org> LKML-Reference: <1241002046-8832-2-git-send-email-robert.richter@amd.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-04-29Merge branch 'linus' into perfcounters/coreIngo Molnar
Merge reason: This brach was on -rc1, refresh it to almost-rc4 to pick up the latest upstream fixes. Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-04-28m68k: arch/m68k/kernel/sun3-head.S needs <linux/init.h>Geert Uytterhoeven
Fix this: arch/m68k/kernel/sun3-head.S: Assembler messages: arch/m68k/kernel/sun3-head.S:32: Error: Unknown operator -- statement `__head' ignored Introduced by commit 6f335cab0431d5df4995bcd4fd952d4c746d5a86 ("m68k: convert to use __HEAD and HEAD_TEXT macros."), which started using __HEAD without adding the appropriate include. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-04-28Merge branch 'merge' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc * 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc: powerpc/ps3: Fix build error on UP powerpc/cell: Select PCI for IBM_CELL_BLADE AND CELLEB powerpc: ppc32 needs elf_read_implies_exec() powerpc/86xx: Add device_type entry to soc for ppc9a powerpc/44x: Correct memory size calculation for denali-based boards maintainers: Fix PowerPC 4xx git tree powerpc: fix for long standing bug noticed by gcc 4.4.0 Revert "powerpc: Add support for early tlbilx opcode"
2009-04-28powerpc: Revert switch to TEXT_TEXT in linker scriptTim Abbott
Commit edada399 broke the build on 64-bit powerpc because it moved the __ftr_alt_* sections of a file away from the .text section, causing link failures due to relative conditional branch targets being too far away from the branch instructions. This happens on pretty much all 64-bit powerpc configs. This change reverts commit edada399 while preserving the update from the *.refok sections to .ref.text that has happened since. Signed-off-by: Tim Abbott <tabbott@mit.edu> Requested-by: Paul Mackerras <paulus@samba.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-04-28powerpc/ps3: Fix build error on UPGeoff Levand
A non-SMP version of smp_send_stop() is now included in smp.h. Remove the unneeded definition in the PS3 smp.c. Fixes build errors like these when CONFIG_SMP=n: arch/powerpc/platforms/ps3/setup.c:49: error: redefinition of 'smp_send_stop' include/linux/smp.h:125: error: previous definition of 'smp_send_stop' was here Reported-by: Subrata Modak <subrata@linux.vnet.ibm.com> Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
2009-04-28powerpc/cell: Select PCI for IBM_CELL_BLADE AND CELLEBMichael Ellerman
Currently PPC_CELL_NATIVE selects PPC_OF_PLATFORM_PCI, but does not select PCI. This can lead to a config with the former and the latter disabled, which does not build. To fix this PPC_CELL_NATIVE should select PCI. However, that would force PCI on for QPACE, which also selects PPC_CELL_NATIVE. So instead move the select of PPC_OF_PLATFORM_PCI and PCI under both IBM_CELL_BLADE and CELLEB. Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Paul Mackerras <paulus@samba.org>
2009-04-28powerpc: ppc32 needs elf_read_implies_exec()Kumar Gala
On ppc64 we implemented elf_read_implies_exec() for 32-bit binaries because old toolchains had bugs where they didn't mark program segments executable that needed to be. For some reason we didn't do this on ppc32 builds. This hadn't been an issue until commit 8d30c14c ("powerpc/mm: Rework I$/D$ coherency (v3)"), which had as a side effect that we are now enforcing execute permissions to some extent on 32-bit 4xx and Book E processors. This fixes it by defining elf_read_implies_exec on 32-bit to turn on the read-implies-exec behaviour on programs that are sufficiently old that they don't have a PT_GNU_STACK program header. Signed-off-by: Kumar Gala <galak@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
2009-04-27sparc: cleanup references to deprecated .text.init* sections.Tim Abbott
The section .text.init.refok is deprecated and __REF (.ref.text) should be used in assembly files instead. This patch cleans up a few uses of .text.init.refok in the sparc architecture. Also fix a reference to .text.init in a comment that wasn't updated to .init.text. Signed-off-by: Tim Abbott <tabbott@mit.edu> Cc: David S. Miller <davem@davemloft.net> Acked-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-04-27sh: Use __INIT macro instead of .text.init.Tim Abbott
The sh architecture has some code in the .text.init section, but it does not reference that section in its linker scripts. This change moves this code from the .text.init section to the .init.text section, which is presumably where it belongs. Signed-off-by: Tim Abbott <tabbott@mit.edu> Acked-by: Sam Ravnborg <sam@ravnborg.org> Acked-by: Paul Mundt <lethal@linux-sh.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-04-27powerpc: Use __REF macro instead of old .text.init.refok.Tim Abbott
The section .text.init.refok is deprecated and __REF (.ref.text) should be used in assembly files instead. This patch cleans up a few uses of .text.init.refok in the powerpc architecture. Signed-off-by: Tim Abbott <tabbott@mit.edu> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Acked-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-04-27powerpc: Use TEXT_TEXT macro in linker script.Tim Abbott
Rather than adding .ref.text to the powerpc linker script so that we can use __REF on the powerpc architecture, it seems simpler to switch to using the generic TEXT_TEXT macro. Signed-off-by: Tim Abbott <tabbott@mit.edu> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Acked-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-04-27arm: Use __INIT macro instead of .text.init.Tim Abbott
arm is placing some code in the .text.init section, but it does not reference that section in its linker scripts. This change moves this code from the .text.init section to the .init.text section, which is presumably where it belongs. Signed-off-by: Tim Abbott <tabbott@mit.edu> Acked-by: Russell King <rmk+kernel@arm.linux.org.uk> Acked-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-04-27FRV: Use __INIT macro instead of .text.init.Tim Abbott
FRV is placing some code in the .text.init section but does not reference that section in its linker scripts. This change moves this code from the .text.init section to the .init.text section, which is presumably where it belongs. Signed-off-by: Tim Abbott <tabbott@mit.edu> Signed-off-by: David Howells <dhowells@redhat.com> Acked-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-04-27FRV: Remove unused header asm/init.h.Tim Abbott
It seems nothing has included the frv asm/init.h header for some time, and its actual contents are out of date with include/linux/init.h. So just delete it. Signed-off-by: Tim Abbott <tabbott@mit.edu> Signed-off-by: David Howells <dhowells@redhat.com> Acked-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-04-28Merge branch 'merge' of ↵Paul Mackerras
git://git.kernel.org/pub/scm/linux/kernel/git/jwboyer/powerpc-4xx into merge
2009-04-27Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6 * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6: PCI: only save/restore existent registers in the PCIe capability x86/PCI: don't bother with root quirks if _CRS is used docbooks: add/fix PCI kernel-doc PCI: cleanup debug output resources x86/PCI: set_pci_bus_resources_arch_default cleanups x86/PCI: Move set_pci_bus_resources_arch_default into arch/x86 x86/PCI: don't call e820_all_mapped with -1 in the mmconfig case PCI quirk: disable MSI on VIA VT3364 chipsets
2009-04-27powerpc/86xx: Add device_type entry to soc for ppc9aMartyn Welch
The 'device_type = "soc";' line *is* needed in the DTS for get_immrbase() to return the correct address. Signed-off-by: Martyn Welch <martyn.welch@gefanuc.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
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