- 12 3月, 2011 8 次提交
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由 Thomas Gleixner 提交于
These cannot be threaded. Signed-off-by: NThomas Gleixner <tglx@linutronix.de>
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由 Thomas Gleixner 提交于
Signed-off-by: NThomas Gleixner <tglx@linutronix.de>
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由 Thomas Gleixner 提交于
The caller of ioapic_register_intr() has a pointer to the irq_cfg for the irq already. Hand it in to avoid a full lookup. In msi_compose_msg() the pointer to irq_cfg is already available. No need to look it up again. Signed-off-by: NThomas Gleixner <tglx@linutronix.de>
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由 Thomas Gleixner 提交于
Use the functions which take irq_data. We already have a pointer to irq_data. That avoids a sparse irq lookup in move_*_irq. Signed-off-by: NThomas Gleixner <tglx@linutronix.de>
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由 Thomas Gleixner 提交于
Signed-off-by: NThomas Gleixner <tglx@linutronix.de>
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由 Thomas Gleixner 提交于
Use the state information in irq_data. That avoids a radix-tree lookup from apic_ack_level() and simplifies setup_ioapic_dest(). Signed-off-by: NThomas Gleixner <tglx@linutronix.de>
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由 Thomas Gleixner 提交于
Use pointers instead of ugly multiline if/else constructs. Signed-off-by: NThomas Gleixner <tglx@linutronix.de>
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由 Thomas Gleixner 提交于
genirq is switching to a consistent name space for the irq related functions. Convert x86. Conversion was done with coccinelle. Signed-off-by: NThomas Gleixner <tglx@linutronix.de>
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- 24 2月, 2011 11 次提交
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由 Thomas Gleixner 提交于
Required for devicetree based io_apic configuration. Signed-off-by: NThomas Gleixner <tglx@linutronix.de>
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由 Thomas Gleixner 提交于
io_apic_set_pci_routing() and mp_save_irq() check the pin_programmed bit before calling io_apic_setup_irq_pin() and set the bit when the pin was setup. Move that duplicated code into a separate function and use it. Signed-off-by: NThomas Gleixner <tglx@linutronix.de>
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由 Thomas Gleixner 提交于
There is no point to have irq_trigger() and irq_polarity() as wrappers around the MPBIOS_* camel case functions. Get rid of both the inlines and the ugly camel case. Signed-off-by: NThomas Gleixner <tglx@linutronix.de>
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由 Thomas Gleixner 提交于
No users outside of io_apic.c. Mark bad_ioapic() __init while at it. Signed-off-by: NThomas Gleixner <tglx@linutronix.de>
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由 Thomas Gleixner 提交于
Another version of the same thing. Only set the pin programmed, when the setup function succeeds. Signed-off-by: NThomas Gleixner <tglx@linutronix.de>
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由 Thomas Gleixner 提交于
Replace the duplicated code. Signed-off-by: NThomas Gleixner <tglx@linutronix.de>
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由 Thomas Gleixner 提交于
The only difference here is that we did not call __add_pin_to_irq_node() for the legacy irqs, but that's not worth 30 lines of extra code. Signed-off-by: NThomas Gleixner <tglx@linutronix.de>
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由 Thomas Gleixner 提交于
Remove the duplicated code and call the function. It does not matter whether we allocated the cfg before calling setup_local_APIC() and we can set the irq chip and handler after that as well. Signed-off-by: NThomas Gleixner <tglx@linutronix.de>
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由 Thomas Gleixner 提交于
There are about four places in the ioapic code which do exactly the same setup sequence. Also the OF based ioapic setup needs that function to avoid putting the OF specific code into ioapic.c Signed-off-by: NThomas Gleixner <tglx@linutronix.de>
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由 Thomas Gleixner 提交于
Two consecutive for(...) for(...) lines to avoid an extra indentation are just horrible to read. I had to look more than once to figure out what the code is doing. Split out the inner loop into a separate function. Signed-off-by: NThomas Gleixner <tglx@linutronix.de>
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由 Thomas Gleixner 提交于
This is debug code and it does not matter at all whether we print each not connected pin in an extra line or try to be extra clever. Signed-off-by: NThomas Gleixner <tglx@linutronix.de>
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- 23 2月, 2011 5 次提交
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由 Henrik Kretzschmar 提交于
Since commit 7cd92366 lAPIC enabled accidently the IOAPIC, which now gets fixed. Signed-off-by: NHenrik Kretzschmar <henne@nachtwindheim.de> LKML-Reference: <1298385487-4708-5-git-send-email-henne@nachtwindheim.de> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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由 Henrik Kretzschmar 提交于
This patch adds IOAPIC dummy functions for compilation with local APIC, but without IOAPIC. The local variable ioapic_entries in enable_IR_x2apic() does not need initialization anymore, since the dummy returns NULL. Signed-off-by: NHenrik Kretzschmar <henne@nachtwindheim.de> LKML-Reference: <1298385487-4708-4-git-send-email-henne@nachtwindheim.de> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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由 Henrik Kretzschmar 提交于
Currently arch_disable_smp_support() on x86 disables only the support for the IOAPIC and is also compiled in if SMP-support is not. Therefore this function is renamed to disable_ioapic_support(), which meets its purpose and is only compiled in the kernel when IOAPIC support is also. A new arch_disable_smp_support() is created in smpboot.c, which calls disable_ioapic_support() and gets only compiled in the kernel when SMP support is also. Signed-off-by: NHenrik Kretzschmar <henne@nachtwindheim.de> LKML-Reference: <1298385487-4708-3-git-send-email-henne@nachtwindheim.de> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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由 Henrik Kretzschmar 提交于
This is a dummy function, used when no IOAPIC is compiled in. Signed-off-by: NHenrik Kretzschmar <henne@nachtwindheim.de> LKML-Reference: <1298385487-4708-2-git-send-email-henne@nachtwindheim.de> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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由 Henrik Kretzschmar 提交于
This enum is used by non IOAPIC code, so apicdef.h is the best place for it. Signed-off-by: NHenrik Kretzschmar <henne@nachtwindheim.de> LKML-Reference: <1298385487-4708-1-git-send-email-henne@nachtwindheim.de> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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- 22 2月, 2011 10 次提交
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由 Nicolas Pitre 提交于
Marcin Slusarz says: > In arch/arm/kernel/kprobes-decode.c there's a function > arm_kprobe_decode_insn which does: > > } else if ((insn & 0x0e000000) == 0x0c400000) { > ... > > This is always false, so code below is dead. > I found this bug by coccinelle (http://coccinelle.lip6.fr/). Reported-by: NMarcin Slusarz <marcin.slusarz@gmail.com> Signed-off-by: NNicolas Pitre <nicolas.pitre@linaro.org> Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
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由 Russell King 提交于
There's no need to noMMU to put tlb_flush() in asm/tlbflush.h - it's part of the tlb shootdown interface. Move it to asm/tlb.h instead, as per x86. Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
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由 Russell King 提交于
We need to delay freeing any mapped page on SMP and ARMv7 systems to ensure that the data is not accessed by other CPUs, or is used for speculative prefetch with ARMv7. This includes not only mapped pages but also pages used for the page tables themselves. This avoids races with the MMU/other CPUs accessing pages after they've been freed but before we've invalidated the TLB. Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
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由 Russell King 提交于
When SMP_ON_UP is used and the spinlocks are inlined, we end up with inline spinlocks in the exit code, with references from the SMP alternatives section to the exit sections. This causes link time errors. Avoid this by placing the exit sections in the init-discarded region. Cc: <stable@kernel.org> Tested-by: NDave Martin <dave.martin@linaro.org> Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
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由 Russell King 提交于
Ensure a predictable endian state when entering signal handlers. This avoids programs which use SETEND to momentarily switch their endian state from having their signal handlers entered with an unpredictable endian state. Cc: <stable@kernel.org> Acked-by: NDave Martin <dave.martin@linaro.org> Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
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由 Pawel Moll 提交于
Commit 18991197 added --build-id linker option when toolchain supports it. ARM one does, but for some reason places the section at 0 when linker script doesn't mention it explicitly. The 1e621a8e worked around the problem removing this section from binary image with explicit objcopy options, but it still exists in vmlinux, confusing tools like debuggers and perf. This problem was discussed here: http://lists.infradead.org/pipermail/linux-arm-kernel/2010-May/015994.html http://lists.infradead.org/pipermail/linux-arm-kernel/2010-May/015994.html but the proposed changes to the linker script were substantial. This patch simply places NOTES (36 bytes long, at least when compiled with CodeSourcery toolchain) between data and bss, which seem to be the right place (and suggested by the sample linker script in include/asm-generic/vmlinux.lds.h). It is enough to place it correctly in vmlinux (so debuggers are happy): Section Headers: [11] .data PROGBITS c07ce000 7ce000 020fc0 00 WA 0 0 32 [12] .notes NOTE c07eefc0 7eefc0 000024 00 AX 0 0 4 [13] .bss NOBITS c07ef000 7eefe4 01e628 00 WA 0 0 32 Program Headers: LOAD 0x008000 0xc0008000 0xc0008000 0x7e6fe4 0x805628 RWE 0x8000 NOTE 0x7eefc0 0xc07eefc0 0xc07eefc0 0x00024 0x00024 R E 0x4 Section to Segment mapping: Segment Sections... 00 <...> .data .notes .bss 01 .notes and to get it exposed as /sys/kernel/notes used by perf tools. Signed-off-by: NPawel Moll <pawel.moll@arm.com> Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
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由 viresh kumar 提交于
SPEAR320_SOC_CONFIG_BASE was wrong, causing the wrong registers to be accessed. Reviewed-by: NStanley Miao <stanley.miao@windriver.com> Signed-off-by: NViresh Kumar <viresh.kumar@st.com> Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
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由 Shiraz Hashim 提交于
In sysctl_soft_reset(), switch to slow mode before resetting the system via the system controller. This is required. Reviewed-by: NStanley Miao <stanley.miao@windriver.com> Signed-off-by: NShiraz Hashim <shiraz.hashim@st.com> Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
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由 viresh kumar 提交于
readl() and writel() calls the outer cache maintainance operations which are not available during Linux uncompression. This patch replaces readl() and writel() with readl_relaxed() and writel_relaxed() to avoid the link time errors. Reviewed-by: NStanley Miao <stanley.miao@windriver.com> Signed-off-by: NViresh Kumar <viresh.kumar@st.com> Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
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由 viresh kumar 提交于
This patch fixes following warning: arch/arm/mm/init.c:606: warning: format '%08lx' expects type 'long unsigned int', but argument 12 has type 'unsigned int' by appending UL to VMALLOC_END's Number. Reviewed-by: NStanley Miao <stanley.miao@windriver.com> Signed-off-by: NViresh Kumar <viresh.kumar@st.com> Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
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- 19 2月, 2011 5 次提交
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由 Catalin Marinas 提交于
If ID_MMFR0[3:0] >= 3, the architecture version is ARMv7. The code was currently only testing for ID_MMFR0[3:0] == 3. Signed-off-by: NCatalin Marinas <catalin.marinas@arm.com> Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
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由 Nicolas Pitre 提交于
Signed-off-by: NNicolas Pitre <nicolas.pitre@linaro.org> Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
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由 Will Deacon 提交于
On versions of the Cortex-A9 prior to r3p0, an interrupted ICIALLUIS operation may prevent the completion of a following broadcasted operation if the second operation is received by a CPU before the ICIALLUIS has completed, potentially leading to corrupted entries in the cache or TLB. This workaround sets a bit in the diagnostic register of the Cortex-A9, causing CP15 maintenance operations to be uninterruptible. Acked-by: NCatalin Marinas <catalin.marinas@arm.com> Signed-off-by: NWill Deacon <will.deacon@arm.com> Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
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由 Will Deacon 提交于
Now that we can execute a CONFIG_SMP kernel on a uniprocessor system, extra care has to be taken in the PMU IRQ affinity setting code to ensure that we don't always fail to initialise. This patch changes the CPU PMU initialisation code so that when we only have a single IRQ, whose affinity can not be changed at the controller, we report success (0) rather than -EINVAL. Reported-by: NAvik Sil <avik.sil@linaro.org> Acked-by: NJamie Iles <jamie@jamieiles.com> Signed-off-by: NWill Deacon <will.deacon@arm.com> Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
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由 Srinidhi Kasagar 提交于
The effect of cache sync operation is to drain the store buffer and wait for all internal buffers to be empty. In normal conditions, store buffer is able to merge the normal memory writes within its 32-byte data buffers. Due to this erratum present in r3p0, the effect of cache sync operation on the store buffer still remains when the operation completes. This means that the store buffer is always asked to drain and this prevents it from merging any further writes. This can severely affect performance on the write traffic esp. on Normal memory NC one. The proposed workaround is to replace the normal offset of cache sync operation(0x730) by another offset targeting an unmapped PL310 register 0x740. Signed-off-by: Nsrinidhi kasagar <srinidhi.kasagar@stericsson.com> Acked-by: NLinus Walleij <linus.walleij@stericsson.com> Acked-by: NCatalin Marinas <catalin.marinas@arm.com> Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
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- 18 2月, 2011 1 次提交
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由 Marek Szyprowski 提交于
Since commit 1130e5b3 regulators are exported to debugfs. The names of the regulators that contains slash ('/') causes an ops during kernel boot. This patch fixes this issue. Signed-off-by: NMarek Szyprowski <m.szyprowski@samsung.com> Signed-off-by: NKyungmin Park <kyungmin.park@samsung.com> Signed-off-by: NKukjin Kim <kgene.kim@samsung.com>
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