- 30 10月, 2009 4 次提交
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由 Magnus Damm 提交于
Rework the SuperH Mobile sleep code from including board specific code to allowing each board to provide pre/post code snippets. These snippets should contain sdram management code to enter and leave self-refresh. Signed-off-by: NMagnus Damm <damm@opensource.se> Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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由 Magnus Damm 提交于
Add code to allow boards registering self-contained functions for going to/from self-refresh. At this point the board code is unused. When all supported boards have been converted then the new sleep code will make use of these functions. Signed-off-by: NMagnus Damm <damm@opensource.se> Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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由 Magnus Damm 提交于
Make use of the recently added notifier chains for sh7724 r-standby register save/restore handling. At this point only the BSC and INTC are handled. Signed-off-by: NMagnus Damm <damm@opensource.se> Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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由 Magnus Damm 提交于
This patch adds atomic notifier chains for pre/post sleep events. Useful for cpu code and boards that need to save and restore register state before and after entering a sleep mode. Signed-off-by: NMagnus Damm <damm@opensource.se> Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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- 28 10月, 2009 2 次提交
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由 Paul Mundt 提交于
num_events should be compared > MAX_HWEVENTS and not >=. The latter was used as a debugging test which accidentally slipped in. Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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由 Paul Mundt 提交于
This adds in preliminary support for the SH-4A performance counters. Presently only the first 2 counters are supported, as these are the ones of the most interest to the perf tool and end users. Counter chaining is not presently handled, so these are simply implemented as 32-bit counters. This also establishes a perf event support framework for other hardware counters, which the existing SH-4 oprofile code will migrate over to as the SH-4A support evolves. Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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- 27 10月, 2009 4 次提交
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由 Paul Mundt 提交于
Many of these symbols went away completely, or we just never cared about them in the first place. Trim the exports down to the essential set. Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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由 Paul Mundt 提交于
These were previously hidden in sh_ksyms_32, despite also being needed for sh64 now that the cache.c code is shared. Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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由 Paul Mundt 提交于
Leaving this configurable caused more trouble than it was ever worth, so just make it explicit. Boards that are verified one way or the other can fix up their selects accordingly. We presently default to non-coherent for most platforms. Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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由 Matt Fleming 提交于
Now that SH's irqflags functions are out of line it becomes necessary to mark them as "notrace" so that we don't try to trace them. [ Do the same for irq_64.c -- PFM. ] Signed-off-by: NMatt Fleming <matt@console-pimps.org> Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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- 26 10月, 2009 5 次提交
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由 Magnus Damm 提交于
This unbreaks kexec support. Without this fix all cases of kexec fails since __pa() does not behave like PHYSADDR(). The downside is that we also kill the code blocking users running old kexec-tools. Signed-off-by: NMagnus Damm <damm@opensource.se> Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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由 Matt Fleming 提交于
When CONFIG_FUNCTION_GRAPH_TRACER is enabled the function graph tracer may patch return addresses on the stack with the address of return_to_handler(). This really confuses the DWARF unwinder because it will try find the caller of return_to_handler(), not the caller of the real return address. So teach the DWARF unwinder how to find the real return address whenever it encounters return_to_handler(). This patch does not cope very well when multiple return addresses on the stack have been patched. To make it work properly it would require state to track how many return_to_handler()'s have been seen so that we'd know where to look in current->curr_ret_stack[]. So for now, instead of trying to handle this, just moan if more than one return address on the stack has been patched. Signed-off-by: NMatt Fleming <matt@console-pimps.org> Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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由 Lubomir Rintel 提交于
ERROR: "__movmemSI12" [net/unix/unix.ko] undefined! ERROR: "__movmemSI52" [net/ipv6/sit.ko] undefined! ERROR: "__movmemSI24" [net/ipv6/ipv6.ko] undefined! ERROR: "__movmemSI60" [net/ipv6/ipv6.ko] undefined! ERROR: "__movmemSI16" [net/ipv6/ipv6.ko] undefined! ERROR: "__movmemSI20" [net/ipv6/ipv6.ko] undefined! ERROR: "__movmemSI32" [net/ipv6/ipv6.ko] undefined! Signed-off-by: NLubomir Rintel <lkundrak@v3.sk> Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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由 Paul Mundt 提交于
This adds an __irq_entry annotation for do_IRQ() so that the IRQ annotation in the function graph tracer works as advertized. We already have the IRQENTRY section wired up, so this is just a trivial addition to actually make use of it. Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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由 Paul Mundt 提交于
This moves the current dma_alloc/free_coherent() calls to a generic variant and plugs them in for the nommu default. Other variants can override the defaults in the dma mapping ops directly. Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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- 20 10月, 2009 1 次提交
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由 Paul Mundt 提交于
This converts the old DMA mapping support to the new generic dma-mapping-common.h abstraction. Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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- 19 10月, 2009 2 次提交
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由 Paul Mundt 提交于
Fixes up flush_dcache_page() references by modules with run-time cache disabling. Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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由 Paul Mundt 提交于
Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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- 18 10月, 2009 1 次提交
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由 Paul Mundt 提交于
SCIF2 and the FPU exceptions happen to share vector numbers, one in EXPEVT and the other in INTEVT. This is a violation of the interface and should have never made it in to silicon. On top of that, the demux hack that was added for special dispatch is rather error prone, and introduces more problems than it solves. Kill all of it off, and just refuse to deal with SCIF2 outright. Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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- 17 10月, 2009 1 次提交
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由 Paul Mundt 提交于
This simplifies the irqflags support by switching over to the asm-generic version. The necessary support functions are brought out-of-line for both SHcompact and SHmedia instruction sets. Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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- 16 10月, 2009 6 次提交
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由 Paul Mundt 提交于
This code was added for some ancient SH-4 solution engines with peculiar boot ROMs that did silly things to the UBC MSTP bits. None of these have been in the wild for years, and these days the clock framework wraps up the MSTP bits, meaning that the UBC code is one of the few interfaces that is stomping MSTP bits underneath the clock framework. At this point the risks far outweigh any benefit this code provided, so just kill it off. Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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由 Paul Mundt 提交于
This enables SCHED_MC support for SH-X3 multi-cores. Presently this is just a simple wrapper around the possible map, but this allows for tying in support for some of the more exotic NUMA clusters where we can actually do something with the topology. Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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由 Paul Mundt 提交于
In the case where need_resched() is set in between the cpu_idle() and pm_idle() calls we were missing an else case for just re-enabling local IRQs and bailing out. This was noticed by the irqs_disabled() warning, even though IRQs were being re-enabled elsewhere. Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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由 Paul Mundt 提交于
This follows the x86 change and moves check_pgt_cache() up under the !need_resched() tight loop, rather than simply calling in to it when exiting idle. Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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由 Paul Mundt 提交于
This does a bit of chainsawing of the idle loop code to get light sleep working on SMP. Previously this was forcing secondary CPUs in to sleep mode with them not coming back if they didn't have their own local timers. Given that we use clockevents broadcasting by default, the CPU managing the clockevents can't have IRQs disabled before entering its sleep state. This unfortunately leaves us with the age-old need_resched() race in between local_irq_enable() and cpu_sleep(), but at present this is unavoidable. After some more experimentation it may be possible to layer on SR.BL bit manipulation over top of this scheme to inhibit the race condition, but given the current potential for missing wakeups, this is left as a future exercise. Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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由 Paul Mundt 提交于
All of the secondary CPUs are forced in to light sleep mode, but we were missing the same initialization for the boot CPU. This resulted in inconsistent sleep modes depending on which CPU we were on, confusing the idle loop when not polling. Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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- 14 10月, 2009 8 次提交
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由 Paul Mundt 提交于
This plugs in support for NMI counting per-CPU via irq_cpustat_t. Modelled after the x86 implementation. Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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由 Paul Mundt 提交于
Replace TIF_RESTORE_SIGMASK with TS_RESTORE_SIGMASK and define our own set_restore_sigmask() function. This saves the costly SMP-safe set_bit operation, which we do not need for the sigmask flag since TIF_SIGPENDING always has to be set too. Based on the x86 and powerpc change. Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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由 Paul Mundt 提交于
The resume_userspace path had TRACE_IRQS_OFF written incorrectly and so never handled the transition properly. This was fixed once before but seems to have made it back in the tree. Fix it for good. Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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由 Paul Mundt 提交于
This only needs to flush the return code via the legacy path, and just invalidates uselessly otherwise. This makes the behaviour consistent for all of the trampoline setup paths. Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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由 Paul Mundt 提交于
The secondary CPU info was seeing corrupted results due to not entering all of the setup paths taken by the boot CPU. So we just memcpy() the boot cpu data over directly, and then fix up the per-CPU bits. Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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由 Paul Mundt 提交于
Trivial change for cleaning up the cpuinfo pretty printing on SMP, adds a newline between CPUs. Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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由 Paul Mundt 提交于
We do not want to use smp_processor_id() from these paths, as they trip preempt BUGs. Switch the test over to the boot cpu directly. Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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由 Paul Mundt 提交于
Secondary CPUs already take care of the D-cache bits through the common cache initialization path, and the only thing that is necessary after twiddling around with stack_start is ensuring that the I-cache changes are visible (particularly since this tends to be the only part lacking coherency). Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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- 13 10月, 2009 6 次提交
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由 Paul Mundt 提交于
This cribs the x86 implementation of ftrace_nmi_enter() and friends to make ftrace_modify_code() NMI safe, particularly on SMP configurations. For additional notes on the problems involved, see the comment below ftrace_call_replace(). Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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由 Paul Mundt 提交于
This adds return_address.c to the -pg exclusion list, as this is the building block for CALLER_ADDRx we do not want to profile this. Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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由 Paul Mundt 提交于
This enables us to build the dwarf unwinder both with modules enabled and disabled in addition to reducing code size in the latter case. The helpers are also consolidated, and modified to resemble the BUG module helpers. Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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由 Paul Mundt 提交于
This splits out the unwinder implementation and adds a new return_address() abstraction modelled after the ARM code. The DWARF unwinder is tied in to this, returning NULL otherwise in the case of being unable to support arbitrary depths. This enables us to get correct behaviour with the unwinder enabled, as well as disabling the arbitrary depth support when frame pointers are enabled, as arbitrary depths with __builtin_return_address() are not supported regardless. With this abstraction it's also possible to layer on a simplified implementation with frame pointers in the event that the unwinder isn't enabled, although this is left as a future exercise. Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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由 Paul Mundt 提交于
Sync up with latest core changes in the syscalls tracing area: - tracing: Map syscall name to number (syscall_name_to_nr()) - tracing: Call arch_init_ftrace_syscalls at boot - tracing: add support tracepoint ids (set_syscall_{enter,exit}_id()) Taken from the s390 change. Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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由 Paul Mundt 提交于
This follows the ARM change, as SH had all of the same issues: Make die() better match x86: - add printing of the last accessed sysfs file - ensure console_verbose() is called under the lock - ensure we panic outside of oops_exit() Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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