- 04 3月, 2011 4 次提交
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由 Nishanth Aravamudan 提交于
If firmware allows us to map all of a partition's memory for DMA on a particular bridge, create a 1:1 mapping of that memory. Add hooks for dealing with hotplug events. Dynamic DMA windows can use larger than the default page size, and we use the largest one possible. Signed-off-by: NNishanth Aravamudan <nacc@us.ibm.com> Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
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由 Tseng-Hui (Frank) Lin 提交于
Move SPRN_PID declearations in various locations into one place. Signed-off-by: NTseng-Hui (Frank) Lin <thlin@linux.vnet.ibm.com> Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
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由 Jim Keniston 提交于
Create the lnx,oops-log NVRAM partition, and capture the end of the printk buffer in it when there's an oops or panic. If we can't create the lnx,oops-log partition, capture the oops/panic report in ibm,rtas-log. Signed-off-by: NJim Keniston <jkenisto@us.ibm.com> Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
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由 Jim Keniston 提交于
Adapt the functions used to create and write to the RTAS-log partition to work with any OS-type partition. Signed-off-by: NJim Keniston <jkenisto@us.ibm.com> Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
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- 02 3月, 2011 8 次提交
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由 Scott Wood 提交于
memblock_enforce_memory_limit() takes the desired maximum quantity of memory to end up with, not an address above which memory will not be used. Signed-off-by: NScott Wood <scottwood@freescale.com> Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
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由 Paul E. McKenney 提交于
The rtas_event_scan() function uses smp_processor_id() to select a starting point in cpu_online_mask, and does so under the protection of get_online_cpus(). This might not select the current processor in any case, so switch to raw_smp_processor_id(). Signed-off-by: NPaul E. McKenney <paulmck@linux.vnet.ibm.com> Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
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由 Justin Mattock 提交于
The patch below removes an extra "l" in the word. Signed-off-by: NJustin P. Mattock <justinmattock@gmail.com> Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
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由 Anton Blanchard 提交于
A number of drivers are using pgprot_writecombine() to enable write combining on userspace mappings. Implement it on powerpc. Signed-off-by: NAnton Blanchard <anton@samba.org> Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
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由 Thomas Gleixner 提交于
Use the new functions and free the descriptor when the virq is destroyed. Signed-off-by: NThomas Gleixner <tglx@linutronix.de> Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
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由 Thomas Gleixner 提交于
Define the ARCH_IRQ_INIT_FLAGS instead of fixing it up in a loop. Signed-off-by: NThomas Gleixner <tglx@linutronix.de> Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
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由 Prarit Bhargava 提交于
Minor cleanup of notifier_from_errno() in powerpc. notifier_from_errno() now contains the if(ret)/else conditional. There is no need to do it in the powerpc code. Signed-off-by: NPrarit Bhargava <prarit@redhat.com> Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
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由 Nicolas Kaiser 提交于
Untested, but looks like an obvious typo to me. [BenH: No feedback, but it's obviously wrong] Signed-off-by: NNicolas Kaiser <nikai@nikai.net> Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
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- 28 2月, 2011 1 次提交
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由 Don Zickus 提交于
A customer of ours, complained that when setting the reset vector back to 0, it trashed other data and hung their box. They noticed when only 4 bytes were set to 0 instead of 8, everything worked correctly. Mathew pointed out: | | We're supposed to be resetting trampoline_phys_low and | trampoline_phys_high here, which are two 16-bit values. | Writing 64 bits is definitely going to overwrite space | that we're not supposed to be touching. | So limit the area modified to u32. Signed-off-by: NDon Zickus <dzickus@redhat.com> Acked-by: NMatthew Garrett <mjg@redhat.com> Cc: <stable@kernel.org> LKML-Reference: <1297139100-424-1-git-send-email-dzickus@redhat.com> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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- 26 2月, 2011 1 次提交
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由 Santosh Shilimkar 提交于
CPU0 and CPU1 clockdomain is at the offset of 0x18 from the LPRM base. The header file has set it wrongly to 0x0. Offset 0x0 is for CPUx power domain control register Fix the same. The autogen scripts is fixed thanks to Benoit Cousson With the old value, the clockdomain code would access the *_PWRSTCTRL.POWERSTATE field when it thought it was accessing the *_CLKSTCTRL.CLKTRCTRL field. In the worst case, this could cause system power management to behave incorrectly. Signed-off-by: NSantosh Shilimkar <santosh.shilimkar@ti.com> Cc: Paul Walmsley <paul@pwsan.com> Cc: Rajendra Nayak <rnayak@ti.com> Cc: Benoit Cousson <b-cousson@ti.com> [paul@pwsan.com: added second paragraph to commit message] Signed-off-by: NPaul Walmsley <paul@pwsan.com>
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- 25 2月, 2011 2 次提交
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由 Paul Walmsley 提交于
OMAP2+ kernels built without CONFIG_OMAP_32K_TIMER crash on boot after the 2.6.38 sched_clock changes: [ 0.000000] OMAP clockevent source: GPTIMER1 at 13000000 Hz [ 0.000000] Unable to handle kernel NULL pointer dereference at virtual address 00000000 [ 0.000000] pgd = c0004000 [ 0.000000] [00000000] *pgd=00000000 [ 0.000000] Internal error: Oops: 80000005 [#1] SMP [ 0.000000] last sysfs file: [ 0.000000] Modules linked in: [ 0.000000] CPU: 0 Not tainted (2.6.38-rc5-00057-g04aa67de #152) [ 0.000000] PC is at 0x0 [ 0.000000] LR is at sched_clock_poll+0x2c/0x3c Without CONFIG_OMAP_32K_TIMER, the kernel has an clockevent and clocksource resolution about three orders of magnitude higher than with CONFIG_OMAP_32K_TIMER set. The tradeoff is that the lowest power consumption states are not available. Fix by calling init_sched_clock() from the GPTIMER clocksource init code. Signed-off-by: NPaul Walmsley <paul@pwsan.com> Signed-off-by: NTony Lindgren <tony@atomide.com>
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由 Andreas Herrmann 提交于
On some SB800 systems polarity for IOAPIC pin2 is wrongly specified as low active by BIOS. This caused system hangs after resume from S3 when HPET was used in one-shot mode on such systems because a timer interrupt was missed (HPET signal is high active). For more details see: http://marc.info/?l=linux-kernel&m=129623757413868Tested-by: NManoj Iyer <manoj.iyer@canonical.com> Tested-by: NAndre Przywara <andre.przywara@amd.com> Signed-off-by: NAndreas Herrmann <andreas.herrmann3@amd.com> Cc: Borislav Petkov <borislav.petkov@amd.com> Cc: stable@kernel.org # 37.x, 32.x LKML-Reference: <20110224145346.GD3658@alberich.amd.com> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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- 24 2月, 2011 2 次提交
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由 Jacob Pan 提交于
Need to adjust the clockevent device rating for the structure that will be registered with clockevent system instead of the temporary structure. Without this fix, APB timer rating will be higher than LAPIC timer such that it can not be released later to be used as the broadcast timer. Signed-off-by: NJacob Pan <jacob.jun.pan@linux.intel.com> Cc: Arjan van de Ven <arjan@linux.intel.com> Cc: Alan Cox <alan@linux.intel.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: John Stultz <john.stultz@linaro.org> LKML-Reference: <1298506046-439-1-git-send-email-jacob.jun.pan@linux.intel.com> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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由 Jesper Nilsson 提交于
The __param section is already brought in by RODATA above. Signed-off-by: NJesper Nilsson <jesper.nilsson@axis.com> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 23 2月, 2011 1 次提交
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由 John Ogness 提交于
In OMAP35X TRM Rev 2010-05 Figure 7-18 "DPLL With EMI Reduction Feature", it is shown that the internal frequency is calculated by CLK_IN/(N+1). However, the value passed to _dpll_test_fint() is already "N+1" since Linux is using the values to divide by. In the technical reference manual, "N" is referring to the divider's register value (0-127). During power management testing, it was observed that programming the wrong jitter correction value can cause the system to become unstable and eventually crash. Signed-off-by: NJohn Ogness <john.ogness@linutronix.de> [paul@pwsan.com: added second paragraph to commit message] Signed-off-by: NPaul Walmsley <paul@pwsan.com>
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- 22 2月, 2011 11 次提交
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由 Joerg Roedel 提交于
In the dr_intercept function a new cpu-feature called decode-assists is implemented and used when available. This code-path does not advance the guest-rip causing the guest to dead-loop over mov-dr instructions. This is fixed by this patch. Signed-off-by: NJoerg Roedel <joerg.roedel@amd.com> Signed-off-by: NAvi Kivity <avi@redhat.com>
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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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- 21 2月, 2011 1 次提交
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由 Kushal Koolwal 提交于
VersaLogic Menlow based boards hang on reboot unless reboot=bios is used. Add quirk to reboot through the BIOS. Tested on at least four boards. Signed-off-by: NKushal Koolwal <kushalkoolwal@gmail.com> LKML-Reference: <1298152563-21594-1-git-send-email-kushalkoolwal@gmail.com> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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- 19 2月, 2011 6 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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由 Rakesh Iyer 提交于
Add Fn keymap support to allow for internal processing of Fn keys. Signed-off-by: NRakesh Iyer <riyer@nvidia.com> Signed-off-by: NDmitry Torokhov <dtor@mail.ru>
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- 18 2月, 2011 3 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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由 Marek Szyprowski 提交于
Max8998 PMIC driver's platform data has been changed once again in commit 735a3d9e. This patch fixes build break caused by that commit. 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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由 Axel Lin 提交于
s3c24xx_ts_set_platdata is annotated __init and not used by any module, thus don't export it. This patch fixes below warning: WARNING: arch/arm/plat-samsung/built-in.o(__ksymtab+0x90): Section mismatch in reference from the variable __ksymtab_s3c24xx_ts_set_platdata to the function .init.text:s3c24xx_ts_set_platdata() The symbol s3c24xx_ts_set_platdata is exported and annotated __init Fix this by removing the __init annotation of s3c24xx_ts_set_platdata or drop the export. Signed-off-by: NAxel Lin <axel.lin@gmail.com> Signed-off-by: NKukjin Kim <kgene.kim@samsung.com>
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