- 11 2月, 2013 12 次提交
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由 Vineet Gupta 提交于
Signed-off-by: NVineet Gupta <vgupta@synopsys.com>
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由 Vineet Gupta 提交于
This contains: -bootup arch IRQ init: init_IRQ(), arc_init_IRQ() -generic IRQ subsystem glue: arch_do_IRQ() -basic IRQ chip setup for in-core intc Signed-off-by: NVineet Gupta <vgupta@synopsys.com> Cc: Thomas Gleixner <tglx@linutronix.de>
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由 Vineet Gupta 提交于
Signed-off-by: NVineet Gupta <vgupta@synopsys.com> Cc: Al Viro <viro@ZenIV.linux.org.uk>
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由 Vineet Gupta 提交于
Hand optimised asm code for ARC700 pipeline. Originally written/optimized by Joern Rennecke Signed-off-by: NVineet Gupta <vgupta@synopsys.com> Cc: Joern Rennecke <joern.rennecke@embecosm.com>
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由 Vineet Gupta 提交于
Signed-off-by: NVineet Gupta <vgupta@synopsys.com> Acked-by: NArnd Bergmann <arnd@arndb.de>
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由 Vineet Gupta 提交于
* L1_CACHE_SHIFT * PAGE_SIZE, PAGE_OFFSET * struct pt_regs, struct user_regs_struct * struct thread_struct, cpu_relax(), task_pt_regs(), start_thread(), ... * struct thread_info, THREAD_SIZE, INIT_THREAD_INFO(), TIF_*, ... * BUG() * ELF_* * Elf_* To disallow user-space visibility into some of the core kernel data-types such as struct pt_regs, #ifdef __KERNEL__ which also makes the UAPI header spit (further patch in the series) to NOT export it to asm/uapi/ptrace.h Signed-off-by: NVineet Gupta <vgupta@synopsys.com> Cc: Jonas Bonn <jonas.bonn@gmail.com> Cc: Al Viro <viro@ZenIV.linux.org.uk> Acked-by: NArnd Bergmann <arnd@arndb.de>
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由 Vineet Gupta 提交于
TBD: do_csum still needs to be written in asm Signed-off-by: NVineet Gupta <vgupta@synopsys.com> Acked-by: NArnd Bergmann <arnd@arndb.de>
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由 Vineet Gupta 提交于
Override asm-generic implementations. We basically gain on 2 fronts * checks for alignment no longer needed as we are only doing "unit" sized copies. (Careful observer could argue that While the kernel buffers are aligned, the user buffer in theory might not be - however in that case the user space is already broken when it tries to deref a hword/word straddling word boundary - so we are not making it any worse). * __copy_{to,from}_user( ) returns bytes that couldn't be copied, whereas get_user() returns 0 for success or -EFAULT (not size). Thus the code to do leftover bytes calculation can be avoided as well. The savings were significant: ~17k of code. bloat-o-meter vmlinux_uaccess_pre vmlinux_uaccess_post add/remove: 0/4 grow/shrink: 8/118 up/down: 1262/-18758 (-17496) ^^^^^^^^^ Signed-off-by: NVineet Gupta <vgupta@synopsys.com> Acked-by: NArnd Bergmann <arnd@arndb.de>
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由 Vineet Gupta 提交于
Signed-off-by: NVineet Gupta <vgupta@synopsys.com>
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由 Vineet Gupta 提交于
This covers the UP / SMP (with no hardware assist for atomic r-m-w) as well as ARC700 LLOCK/SCOND insns based. Signed-off-by: NVineet Gupta <vgupta@synopsys.com>
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由 Vineet Gupta 提交于
ARC700 has an in-core intc which provides 2 priorities (a.k.a.) "levels" of interrupts (per IRQ) hencforth referred to as L1/L2 interrupts. CPU flags register STATUS32 has Interrupt Enable bits per level (E1/E2) to globally enable (or disable) all IRQs at a level. Hence the implementation of arch_local_irq_{save,restore,enable,disable}( ) The STATUS32 reg can be r/w only using the AUX Interface of ARC, hence the use of LR/SR instructions. Further, E1/E2 bits in there can only be updated using the FLAG insn. The intc supports 32 interrupts - and per IRQ enabling is controlled by a bit in the AUX_IENABLE register, hence the implmentation of arch_{,un}mask_irq( ) routines. Signed-off-by: NVineet Gupta <vgupta@synopsys.com> Cc: Thomas Gleixner <tglx@linutronix.de>
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由 Vineet Gupta 提交于
Arnd in his review pointed out that arch Kconfig organisation has several deficiencies: * Build time entries for things which can be runtime extracted from DT (e.g. SDRAM size, core clk frequency..) * Not multi-platform-image-build friendly (choice .. endchoice constructs) * cpu variants support (750/770) is exclusive. The first 2 have been fixed in subsequent patches. Due to the nature of the 750 and 770, it is not possible to build for both together, w/o special runtime glue code which would hurt performance. Signed-off-by: NVineet Gupta <vgupta@synopsys.com> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Sam Ravnborg <sam@ravnborg.org> Acked-by: NSam Ravnborg <sam@ravnborg.org>
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- 28 1月, 2013 1 次提交
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由 Vineet Gupta 提交于
Signed-off-by: NVineet Gupta <vgupta@synopsys.com>
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- 24 1月, 2013 2 次提交
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由 Pawel Moll 提交于
As the kernel is able to cope with multiple clusters, uncomment the A7 cores in the Device Tree for V2P-CA15_A7 tile, making all 5 cores available to the user. Signed-off-by: NPawel Moll <pawel.moll@arm.com>
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由 Lorenzo Pieralisi 提交于
In ARM multi-cluster systems the MPIDR affinity level 0 cannot be used as a single cpu identifier, affinity levels 1 and 2 must be taken into account as well. This patch extends the MPIDR usage to affinity levels 1 and 2 in versatile secondary cores start up code in order to compare the passed pen_release value with the full-blown affinity mask. Signed-off-by: NLorenzo Pieralisi <lorenzo.pieralisi@arm.com> Signed-off-by: NLiviu Dudau <liviu.dudau@arm.com> Acked-by: NNicolas Pitre <nico@linaro.org> Signed-off-by: NPawel Moll <pawel.moll@arm.com>
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- 23 1月, 2013 11 次提交
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由 Douglas Gilbert 提交于
Concerning pinctrl_macb0_rmii_mii, values were okay, but not comments. Signed-off-by: NDouglas Gilbert <dgilbert@interlog.com> Signed-off-by: NNicolas Ferre <nicolas.ferre@atmel.com>
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由 Nicolas Ferre 提交于
Reported-by: NJosh Wu <josh.wu@atmel.com> Signed-off-by: NNicolas Ferre <nicolas.ferre@atmel.com>
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由 Nicolas Ferre 提交于
No need for this cmdline option as we are using DT. Moreover this defconfig is targeted to multiple SoC/boards: this option was nonsense. Reported-by: NJosh Wu <josh.wu@atmel.com> Signed-off-by: NNicolas Ferre <nicolas.ferre@atmel.com>
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由 Boris BREZILLON 提交于
This patch overrides default macb pinctrl config defined in at91sam9260.dtsi (pinctrl_macb_rmii) with kizbox board config (pinctrl_macb_rmii + pinctrl_macb_rmii_mii_alt). Signed-off-by: NBoris BREZILLON <linux-arm@overkiz.com> Acked-by: NJean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Signed-off-by: NNicolas Ferre <nicolas.ferre@atmel.com>
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Make BGA as the default version as we are supposed to just have to specify when we use the PQFP version. Issue was existing since commit: 3e90772f (ARM: at91: fix at91rm9200 soc subtype handling). Signed-off-by: NJean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Cc: stable <stable@vger.kernel.org> [v3.3] Signed-off-by: NNicolas Ferre <nicolas.ferre@atmel.com>
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由 Joachim Eastwood 提交于
Signed-off-by: NJoachim Eastwood <manabian@gmail.com> Acked-by: NJean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Signed-off-by: NNicolas Ferre <nicolas.ferre@atmel.com>
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由 Richard Genoud 提交于
The SCK pins where missing in usarts pinctrl. Signed-off-by: NRichard Genoud <richard.genoud@gmail.com> Acked-by: NJean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Signed-off-by: NNicolas Ferre <nicolas.ferre@atmel.com>
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由 Richard Genoud 提交于
The PIN_BANK 3 is for PDxx pins, not PCxx pins. And PIN_BANK 1 is for PBxx, not PIN_BANK 0. Signed-off-by: NRichard Genoud <richard.genoud@gmail.com> Acked-by: NJean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Signed-off-by: NNicolas Ferre <nicolas.ferre@atmel.com>
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由 Sebastian Hesselbarth 提交于
The gpio controller on kirkwood can provide interrupts but is missing the #interrupt-cells property. This patch just adds it to both gpio controllers. Signed-off-by: NSebastian Hesselbarth <sebastian.hesselbarth@gmail.com> Signed-off-by: NJason Cooper <jason@lakedaemon.net>
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由 Oleg Nesterov 提交于
putreg() assumes that the tracee is not running and pt_regs_access() can safely play with its stack. However a killed tracee can return from ptrace_stop() to the low-level asm code and do RESTORE_REST, this means that debugger can actually read/modify the kernel stack until the tracee does SAVE_REST again. set_task_blockstep() can race with SIGKILL too and in some sense this race is even worse, the very fact the tracee can be woken up breaks the logic. As Linus suggested we can clear TASK_WAKEKILL around the arch_ptrace() call, this ensures that nobody can ever wakeup the tracee while the debugger looks at it. Not only this fixes the mentioned problems, we can do some cleanups/simplifications in arch_ptrace() paths. Probably ptrace_unfreeze_traced() needs more callers, for example it makes sense to make the tracee killable for oom-killer before access_process_vm(). While at it, add the comment into may_ptrace_stop() to explain why ptrace_stop() still can't rely on SIGKILL and signal_pending_state(). Reported-by: NSalman Qazi <sqazi@google.com> Reported-by: NSuleiman Souhlal <suleiman@google.com> Suggested-by: NLinus Torvalds <torvalds@linux-foundation.org> Signed-off-by: NOleg Nesterov <oleg@redhat.com> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Will Deacon 提交于
The kernel's internal definition of ELF_NGREG uses struct pt_regs, which means that we disagree with userspace on the size of coredumps since glibc correctly uses the user-visible struct user_pt_regs. This patch fixes our ELF_NGREG definition to use struct user_pt_regs and introduces our own ELF_CORE_COPY_REGS to convert between the user and kernel structure definitions. Cc: <stable@vger.kernel.org> Signed-off-by: NWill Deacon <will.deacon@arm.com> Signed-off-by: NCatalin Marinas <catalin.marinas@arm.com>
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- 22 1月, 2013 4 次提交
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由 Luciano Coelho 提交于
Add the UART2 muxing data to the board file (this used to be, erroneously, done in the bootloader). Cc: stable <stable@vger.kernel.org> [3.7] Signed-off-by: NLuciano Coelho <coelho@ti.com> Signed-off-by: NTony Lindgren <tony@atomide.com>
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由 Pantelis Antoniou 提交于
The iterator correctly handles of_node_put() calls. Remove it before continue'ing the loop. Without this patch you get the following with CONFIG_OF_DYNAMIC set: ERROR: Bad of_node_put() on /ocp/timer@44e31000! [<c001329c>] (unwind_backtrace+0x0/0xe0) from [<c03dd8f0>] (of_node_release+0x2c/0xa0)! [<c03dd8f0>] (of_node_release+0x2c/0xa0) from [<c03ddea0>] (of_find_matching_node_and_match+0x78/0x90)! [<c03ddea0>] (of_find_matching_node_and_match+0x78/0x90) from [<c06d349c>] (omap_get_timer_dt+0x78/0x90)! [<c06d349c>] (omap_get_timer_dt+0x78/0x90) from [<c06d3664>] (omap_dm_timer_init_one.clone.2+0x34/0x2bc)! [<c06d3664>] (omap_dm_timer_init_one.clone.2+0x34/0x2bc) from [<c06d3a2c>] (omap2_gptimer_clocksource_init.clone.4+0x24/0xa8)! [<c06d3a2c>] (omap2_gptimer_clocksource_init.clone.4+0x24/0xa8) from [<c06cca58>] (time_init+0x20/0x30)! [<c06cca58>] (time_init+0x20/0x30) from [<c06c9690>] (start_kernel+0x1a8/0x2fc)! Signed-off-by: NPantelis Antoniou <panto@antoniou-consulting.com> Acked-by: NJon Hunter <jon-hunter@ti.com> [tony@atomide.com: updated description per Jon] Signed-off-by: NTony Lindgren <tony@atomide.com>
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由 Tony Lindgren 提交于
Otherwise we will get: WARNING: vmlinux.o(.text+0x1d4f0): Section mismatch in reference from the function omap_init_ocp2scp() to the function .init.text:omap_device_build() The function omap_init_ocp2scp() references the function __init omap_device_build(). This is often because omap_init_ocp2scp lacks a __init annotation or the annotation of omap_device_build is wrong. Signed-off-by: NTony Lindgren <tony@atomide.com>
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由 Rob Clark 提交于
Fixes compile break with 3.8-rc4. Signed-off-by: NRob Clark <robdclark@gmail.com> Signed-off-by: NTony Lindgren <tony@atomide.com>
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- 21 1月, 2013 1 次提交
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由 Oleg Nesterov 提交于
The ia64 function "thread_matches()" has no users since commit e868a55c ("[IA64] remove find_thread_for_addr()"). Remove it. This allows us to make ptrace_check_attach() static to kernel/ptrace.c, which is good since we'll need to change the semantics of it and fix up all the callers. Signed-off-by: NOleg Nesterov <oleg@redhat.com> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 19 1月, 2013 5 次提交
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由 Santosh Shilimkar 提交于
Commit 8fb54284 {ARM: mm: Add strongly ordered descriptor support} added XN flag at section level but missed it at PTE level. Fix it by adding the L_PTE_XN to MT_MEMORY_SO PTE descriptor. Reported-by: NRichard Woodruff <r-woodruff2@ti.com> Signed-off-by: NSantosh Shilimkar <santosh.shilimkar@ti.com> Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
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由 Russell King 提交于
Subhash Jadavani reported this partial backtrace: Now consider this call stack from MMC block driver (this is on the ARMv7 based board): [<c001b50c>] (v7_dma_inv_range+0x30/0x48) from [<c0017b8c>] (dma_cache_maint_page+0x1c4/0x24c) [<c0017b8c>] (dma_cache_maint_page+0x1c4/0x24c) from [<c0017c28>] (___dma_page_cpu_to_dev+0x14/0x1c) [<c0017c28>] (___dma_page_cpu_to_dev+0x14/0x1c) from [<c0017ff8>] (dma_map_sg+0x3c/0x114) This is caused by incrementing the struct page pointer, and running off the end of the sparsemem page array. Fix this by incrementing by pfn instead, and convert the pfn to a struct page. Cc: <stable@vger.kernel.org> Suggested-by: NJames Bottomley <JBottomley@Parallels.com> Tested-by: NSubhash Jadavani <subhashj@codeaurora.org> Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
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由 Jon Hunter 提交于
During the migration to the common clock framework, calls to the functions omap2xxx_clkt_vps_late_init() were not preserved for OMAP2420 and OMAP2430. This causes the variables "sys_ck_rate" and "curr_prcm_set" to be uninitialised on boot. On reboot, this causes the following error message to be displayed because the appropriate MPU clock frequency (derived from sys_ck_rate) cannot be found. "Could not set MPU rate to 4294MHz" Fix this by adding back calls to omap2xxx_clkt_vps_late_init() in the OMAP2420 and OMAP2430 clock initialisation code. Signed-off-by: NJon Hunter <jon-hunter@ti.com> [paul@pwsan.com: dropped the duplicated call to omap2xxx_clkt_vps_check_bootloader_rates() after consultation with Jon; updated patch description] Signed-off-by: NPaul Walmsley <paul@pwsan.com>
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由 Peter Ujfalusi 提交于
McPDM need to be configured to NO_IDLE mode when it is in used otherwise vital clocks will be gated which results 'slow motion' audio playback. Signed-off-by: NPeter Ujfalusi <peter.ujfalusi@ti.com> [paul@pwsan.com: copy patch description into hwmod data comments] Signed-off-by: NPaul Walmsley <paul@pwsan.com>
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由 Peter Ujfalusi 提交于
To avoid issues with audio caused by non locked ABE DPLL we should make sure it is locked in all OMAP4 revisions. Signed-off-by: NPeter Ujfalusi <peter.ujfalusi@ti.com> Acked-by: NJon Hunter <jon-hunter@ti.com> [paul@pwsan.com: cleaned up patch description] Signed-off-by: NPaul Walmsley <paul@pwsan.com>
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- 18 1月, 2013 3 次提交
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由 Peter Chen 提交于
As we use platform_device_id for fsl-usb2-udc driver, it needs to change clk connection-id, or the related devm_clk_get will be failed. Signed-off-by: NPeter Chen <peter.chen@freescale.com> Acked-by: NShawn Guo <shawn.guo@linaro.org> Signed-off-by: NFelipe Balbi <balbi@ti.com>
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由 Peter Chen 提交于
As mach/hardware.h is deleted, we need to use platform_device_id to differentiate SoCs. Besides, one cpu_is_mx35 is useless as it has already used pdata to differentiate runtime Meanwhile we update the platform code accordingly. Signed-off-by: NPeter Chen <peter.chen@freescale.com> Signed-off-by: NFelipe Balbi <balbi@ti.com>
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由 Alexander Graf 提交于
Guests can trigger MMIO exits using dcbf. Since we don't emulate cache incoherent MMIO, just do nothing and move on. Reported-by: NBen Collins <ben.c@servergy.com> Signed-off-by: NAlexander Graf <agraf@suse.de> Tested-by: NBen Collins <ben.c@servergy.com> CC: stable@vger.kernel.org
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- 17 1月, 2013 1 次提交
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由 Dimitris Papastamos 提交于
We are using S3C_EINT(4) instead of S3C_EINT(5). Signed-off-by: NDimitris Papastamos <dp@opensource.wolfsonmicro.com> Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com> Cc: stable@vger.kernel.org Signed-off-by: NKukjin Kim <kgene.kim@samsung.com>
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