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2015-11-27MIPS: atomic: Fix comment describing atomic64_add_unless's return value.Ralf Baechle1-1/+1
commit f25319d2cb439249a6859f53ad42ffa332b0acba upstream. Signed-off-by: Ralf Baechle <ralf@linux-mips.org> Fixes: f24219b4e90cf70ec4a211b17fbabc725a0ddf3c (cherry picked from commit f0a232cde7be18a207fd057dd79bbac8a0a45dec) Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
2015-10-13MIPS: Make set_pte() SMP safe.David Daney1-0/+31
commit 46011e6ea39235e4aca656673c500eac81a07a17 upstream. On MIPS the GLOBAL bit of the PTE must have the same value in any aligned pair of PTEs. These pairs of PTEs are referred to as "buddies". In a SMP system is is possible for two CPUs to be calling set_pte() on adjacent PTEs at the same time. There is a race between setting the PTE and a different CPU setting the GLOBAL bit in its buddy PTE. This race can be observed when multiple CPUs are executing vmap()/vfree() at the same time. Make setting the buddy PTE's GLOBAL bit an atomic operation to close the race condition. The case of CONFIG_64BIT_PHYS_ADDR && CONFIG_CPU_MIPS32 is *not* handled. Signed-off-by: David Daney <david.daney@cavium.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/10835/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
2015-08-07MIPS: Octeon: Delete override of cpu_has_mips_r2_exec_hazard.Ralf Baechle1-1/+0
commit f05ff43355e6997c18f82ddcee370a6e5f8643ce upstream. This is no longer needed with the fixed, new and improved definition of cpu_has_mips_r2_exec_hazard in <asm/cpu-features.h>. For a discussion, see http://patchwork.linux-mips.org/patch/9539/. Signed-off-by: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
2015-08-07MIPS: Fix cpu_has_mips_r2_exec_hazard.Ralf Baechle1-1/+25
commit 9cdf30bd3bac697fc533988f44a117434a858f69 upstream. Returns a non-zero value if the current processor implementation requires an IHB instruction to deal with an instruction hazard as per MIPS R2 architecture specification, zero otherwise. For a discussion, see http://patchwork.linux-mips.org/patch/9539/. Signed-off-by: Ralf Baechle <ralf@linux-mips.org> [bwh: Backported to 3.2: trim the CPU type list] Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
2015-08-07MIPS: Octeon: Remove udelay() causing huge IRQ latencyAlexander Sverdlin1-3/+0
commit 73bf3c2a500b2db8ac966469591196bf55afb409 upstream. udelay() in PCI/PCIe read/write callbacks cause 30ms IRQ latency on Octeon platforms because these operations are called from PCI_OP_READ() and PCI_OP_WRITE() under raw_spin_lock_irqsave(). Signed-off-by: Alexander Sverdlin <alexander.sverdlin@nokia.com> Cc: linux-mips@linux-mips.org Cc: David Daney <ddaney@cavium.com> Cc: Rob Herring <robh@kernel.org> Cc: Jiri Kosina <jkosina@suse.cz> Cc: Randy Dunlap <rdunlap@infradead.org> Cc: Masanari Iida <standby24x7@gmail.com> Cc: Bjorn Helgaas <bhelgaas@google.com> Cc: Mathias <mathias.rulf@nokia.com> Patchwork: https://patchwork.linux-mips.org/patch/9576/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org> [bwh: Backported to 3.2: adjust context] Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
2015-08-07MIPS: Fix race condition in lazy cache flushing.Lars Persson1-15/+23
commit 4d46a67a3eb827ccf1125959936fd51ba318dabc upstream. The lazy cache flushing implemented in the MIPS kernel suffers from a race condition that is exposed by do_set_pte() in mm/memory.c. A pre-condition is a file-system that writes to the page from the CPU in its readpage method and then calls flush_dcache_page(). One example is ubifs. Another pre-condition is that the dcache flush is postponed in __flush_dcache_page(). Upon a page fault for an executable mapping not existing in the page-cache, the following will happen: 1. Write to the page 2. flush_dcache_page 3. flush_icache_page 4. set_pte_at 5. update_mmu_cache (commits the flush of a dcache-dirty page) Between steps 4 and 5 another thread can hit the same page and it will encounter a valid pte. Because the data still is in the L1 dcache the CPU will fetch stale data from L2 into the icache and execute garbage. This fix moves the commit of the cache flush to step 3 to close the race window. It also reduces the amount of flushes on non-executable mappings because we never enter __flush_dcache_page() for non-aliasing CPUs. Regressions can occur in drivers that mistakenly relies on the flush_dcache_page() in get_user_pages() for DMA operations. [ralf@linux-mips.org: Folded in patch 9346 to fix highmem issue.] Signed-off-by: Lars Persson <larper@axis.com> Cc: linux-mips@linux-mips.org Cc: paul.burton@imgtec.com Cc: linux-kernel@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/9346/ Patchwork: https://patchwork.linux-mips.org/patch/9738/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
2014-12-14MIPS: ftrace: Fix a microMIPS build problemMarkos Chandras1-2/+2
commit aedd153f5bb5b1f1d6d9142014f521ae2ec294cc upstream. Code before the .fixup section needs to have the .insn directive. This has no side effects on MIPS32/64 but it affects the way microMIPS loads the address for the return label. Fixes the following build problem: mips-linux-gnu-ld: arch/mips/built-in.o: .fixup+0x4a0: Unsupported jump between ISA modes; consider recompiling with interlinking enabled. mips-linux-gnu-ld: final link failed: Bad value Makefile:819: recipe for target 'vmlinux' failed The fix is similar to 1658f914ff91c3bf ("MIPS: microMIPS: Disable LL/SC and fix linker bug.") Signed-off-by: Markos Chandras <markos.chandras@imgtec.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/8117/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org> [bwh: Backported to 3.2: adjust context] Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
2014-07-11MIPS: asm: thread_info: Add _TIF_SECCOMP flagMarkos Chandras1-1/+1
commit 137f7df8cead00688524c82360930845396b8a21 upstream. Add _TIF_SECCOMP flag to _TIF_WORK_SYSCALL_ENTRY to indicate that the system call needs to be checked against a seccomp filter. Signed-off-by: Markos Chandras <markos.chandras@imgtec.com> Reviewed-by: Paul Burton <paul.burton@imgtec.com> Reviewed-by: James Hogan <james.hogan@imgtec.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/6405/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org> [bwh: Backported to 3.2: various other flags are not included in _TIF_WORK_SYSCALL_ENTRY] Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
2014-07-11MIPS: Cleanup flags in syscall flags handlers.Ralf Baechle1-0/+2
commit e7f3b48af7be9f8007a224663a5b91340626fed5 upstream. This will simplify further modifications. Signed-off-by: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
2013-11-28compiler/gcc4: Add quirk for 'asm goto' miscompilation bugIngo Molnar1-1/+1
commit 3f0116c3238a96bc18ad4b4acefe4e7be32fa861 upstream. Fengguang Wu, Oleg Nesterov and Peter Zijlstra tracked down a kernel crash to a GCC bug: GCC miscompiles certain 'asm goto' constructs, as outlined here: http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58670 Implement a workaround suggested by Jakub Jelinek. Reported-and-tested-by: Fengguang Wu <fengguang.wu@intel.com> Reported-by: Oleg Nesterov <oleg@redhat.com> Reported-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Suggested-by: Jakub Jelinek <jakub@redhat.com> Reviewed-by: Richard Henderson <rth@twiddle.net> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Ingo Molnar <mingo@kernel.org> [bwh: Backported to 3.2: - Drop inapplicable changes - Adjust context] Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
2012-07-25MIPS: Properly align the .data..init_task section.David Daney1-2/+2
commit 7b1c0d26a8e272787f0f9fcc5f3e8531df3b3409 upstream. Improper alignment can lead to unbootable systems and/or random crashes. [ralf@linux-mips.org: This is a lond standing bug since 6eb10bc9e2deab06630261cd05c4cb1e9a60e980 (kernel.org) rsp. c422a10917f75fd19fa7fe070aaaa23e384dae6f (lmo) [MIPS: Clean up linker script using new linker script macros.] so dates back to 2.6.32.] Signed-off-by: David Daney <david.daney@cavium.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/3881/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
2012-06-10MIPS: BCM63XX: Add missing include for bcm63xx_gpio.hJonas Gorski1-0/+1
commit 442209f31dafef9fde852858e1ce566b675b720d upstream. bcm63xx_gpio.h uses macros defined in bcm63xx_cpu.h without including it, leading to the following build failure: CC [M] drivers/mmc/core/cd-gpio.o In file included from arch/mips/include/asm/mach-bcm63xx/gpio.h:4:0, from arch/mips/include/asm/gpio.h:4, from include/linux/gpio.h:30, from drivers/mmc/core/cd-gpio.c:12: arch/mips/include/asm/mach-bcm63xx/bcm63xx_gpio.h: In function 'bcm63xx_gpio_count': arch/mips/include/asm/mach-bcm63xx/bcm63xx_gpio.h:10:2: error: implicit declaration of function 'bcm63xx_get_cpu_id' arch/mips/include/asm/mach-bcm63xx/bcm63xx_gpio.h:11:7: error: 'BCM6358_CPU_ID' undeclared (first use in this function) arch/mips/include/asm/mach-bcm63xx/bcm63xx_gpio.h:11:7: note: each undeclared identifier is reported only once for each function it appears in arch/mips/include/asm/mach-bcm63xx/bcm63xx_gpio.h:13:7: error: 'BCM6338_CPU_ID' undeclared (first use in this function) arch/mips/include/asm/mach-bcm63xx/bcm63xx_gpio.h:15:7: error: 'BCM6345_CPU_ID' undeclared (first use in this function) arch/mips/include/asm/mach-bcm63xx/bcm63xx_gpio.h:17:7: error: 'BCM6368_CPU_ID' undeclared (first use in this function) arch/mips/include/asm/mach-bcm63xx/bcm63xx_gpio.h:19:7: error: 'BCM6348_CPU_ID' undeclared (first use in this function) make[7]: *** [drivers/mmc/core/cd-gpio.o] Error 1 Signed-off-by: Jonas Gorski <jonas.gorski@gmail.com> Cc: linux-mips@linux-mips.org Cc: Maxime Bizon <mbizon@freebox.fr> Cc: Florian Fainelli <florian@openwrt.org> Signed-off-by: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
2011-11-09MIPS: Hook up process_vm_readv and process_vm_writev system calls.David Daney1-6/+12
Signed-off-by: David Daney <david.daney@cavium.com> To: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/2918/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2011-11-08MIPS: BCM47xx: fix build with GENERIC_GPIO configurationFlorian Fainelli1-3/+15
Since eb9ae7f2 (gpio: fix build error in include/asm-generic/gpio.h) the generic version of gpio.h calls __gpio_{set,get}_value which we do not define. Get rid of asm-generic/gpio.h and define the missing stubs directly for BCM47xx to build. Reported-by: Ralf Baechle <ralf@linux-mips.org> To: linux-mips@linux-mips.org CC: Hauke Mehrtens <hauke@hauke-m.de> Signed-off-by: Florian Fainelli <florian@openwrt.org> Patchwork: https://patchwork.linux-mips.org/patch/2885/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2011-11-04Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linusLinus Torvalds18-554/+418
* 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus: (37 commits) MIPS: O32: Provide definition of registers ta0 .. ta3. MIPS: perf: Add Octeon support for hardware perf. MIPS: perf: Add support for 64-bit perf counters. MIPS: perf: Reorganize contents of perf support files. MIPS: perf: Cleanup formatting in arch/mips/kernel/perf_event.c MIPS: Add accessor macros for 64-bit performance counter registers. MIPS: Add probes for more Octeon II CPUs. MIPS: Add more CPU identifiers for Octeon II CPUs. MIPS: XLR, XLS: Add comment for smp setup MIPS: JZ4740: GPIO: Check correct IRQ in demux handler MIPS: JZ4740: GPIO: Simplify IRQ demuxer MIPS: JZ4740: Use generic irq chip MIPS: Alchemy: remove all CONFIG_SOC_AU1??? defines MIPS: Alchemy: kill au1xxx.h header MIPS: Alchemy: clean DMA code of CONFIG_SOC_AU1??? defines MIPS, IDE: Alchem, au1xxx-ide: Remove pb1200/db1200 header dep MIPS: Alchemy: Redo PCI as platform driver MIPS: Alchemy: more base address cleanup MIPS: Alchemy: rewrite USB platform setup. MIPS: Alchemy: abstract USB block control register access ... Fix up trivial conflicts in: arch/mips/alchemy/devboards/db1x00/platform.c drivers/ide/Kconfig drivers/mmc/host/au1xmmc.c drivers/video/Kconfig sound/mips/Kconfig
2011-10-29i2c-au1550: remove usage of volatile keywordManuel Lauss1-13/+0
Replace the usage of "volatile"s with register accessor functions. Signed-off-by: Manuel Lauss <manuel.lauss@googlemail.com> Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2011-10-28Merge branch 'for-next' of ↵Linus Torvalds1-1/+2
git://git.kernel.org/pub/scm/linux/kernel/git/hch/vfs-queue * 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/hch/vfs-queue: (21 commits) leases: fix write-open/read-lease race nfs: drop unnecessary locking in llseek ext4: replace cut'n'pasted llseek code with generic_file_llseek_size vfs: add generic_file_llseek_size vfs: do (nearly) lockless generic_file_llseek direct-io: merge direct_io_walker into __blockdev_direct_IO direct-io: inline the complete submission path direct-io: separate map_bh from dio direct-io: use a slab cache for struct dio direct-io: rearrange fields in dio/dio_submit to avoid holes direct-io: fix a wrong comment direct-io: separate fields only used in the submission path from struct dio vfs: fix spinning prevention in prune_icache_sb vfs: add a comment to inode_permission() vfs: pass all mask flags check_acl and posix_acl_permission vfs: add hex format for MAY_* flag values vfs: indicate that the permission functions take all the MAY_* flags compat: sync compat_stats with statfs. vfs: add "device" tag to /proc/self/mountstats cleanup: vfs: small comment fix for block_invalidatepage ... Fix up trivial conflict in fs/gfs2/file.c (llseek changes)
2011-10-28compat: sync compat_stats with statfs.Eric W. Biederman1-1/+2
This was found by inspection while tracking a similar bug in compat_statfs64, that has been fixed in mainline since decemeber. - This fixes a bug where not all of the f_spare fields were cleared on mips and s390. - Add the f_flags field to struct compat_statfs - Copy f_flags to userspace in case someone cares. - Use __clear_user to copy the f_spare field to userspace to ensure that all of the elements of f_spare are cleared. On some architectures f_spare is has 5 ints and on some architectures f_spare only has 4 ints. Which makes the previous technique of clearing each int individually broken. I don't expect anyone actually uses the old statfs system call anymore but if they do let them benefit from having the compat and the native version working the same. Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by: Christoph Hellwig <hch@lst.de>
2011-10-25Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-nextLinus Torvalds2-17/+117
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1745 commits) dp83640: free packet queues on remove dp83640: use proper function to free transmit time stamping packets ipv6: Do not use routes from locally generated RAs |PATCH net-next] tg3: add tx_dropped counter be2net: don't create multiple RX/TX rings in multi channel mode be2net: don't create multiple TXQs in BE2 be2net: refactor VF setup/teardown code into be_vf_setup/clear() be2net: add vlan/rx-mode/flow-control config to be_setup() net_sched: cls_flow: use skb_header_pointer() ipv4: avoid useless call of the function check_peer_pmtu TCP: remove TCP_DEBUG net: Fix driver name for mdio-gpio.c ipv4: tcp: fix TOS value in ACK messages sent from TIME_WAIT rtnetlink: Add missing manual netlink notification in dev_change_net_namespaces ipv4: fix ipsec forward performance regression jme: fix irq storm after suspend/resume route: fix ICMP redirect validation net: hold sock reference while processing tx timestamps tcp: md5: add more const attributes Add ethtool -g support to virtio_net ... Fix up conflicts in: - drivers/net/Kconfig: The split-up generated a trivial conflict with removal of a stale reference to Documentation/networking/net-modules.txt. Remove it from the new location instead. - fs/sysfs/dir.c: Fairly nasty conflicts with the sysfs rb-tree usage, conflicting with Eric Biederman's changes for tagged directories.
2011-10-25Merge branch 'for-linus' of ↵Linus Torvalds1-4/+2
git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (59 commits) MAINTAINERS: linux-m32r is moderated for non-subscribers linux@lists.openrisc.net is moderated for non-subscribers Drop default from "DM365 codec select" choice parisc: Kconfig: cleanup Kernel page size default Kconfig: remove redundant CONFIG_ prefix on two symbols cris: remove arch/cris/arch-v32/lib/nand_init.S microblaze: add missing CONFIG_ prefixes h8300: drop puzzling Kconfig dependencies MAINTAINERS: microblaze-uclinux@itee.uq.edu.au is moderated for non-subscribers tty: drop superfluous dependency in Kconfig ARM: mxc: fix Kconfig typo 'i.MX51' Fix file references in Kconfig files aic7xxx: fix Kconfig references to READMEs Fix file references in drivers/ide/ thinkpad_acpi: Fix printk typo 'bluestooth' bcmring: drop commented out line in Kconfig btmrvl_sdio: fix typo 'btmrvl_sdio_sd6888' doc: raw1394: Trivial typo fix CIFS: Don't free volume_info->UNC until we are entirely done with it. treewide: Correct spelling of successfully in comments ...
2011-10-25MIPS: O32: Provide definition of registers ta0 .. ta3.Ralf Baechle1-0/+6
Later IRIX versions provide them in <sys/regdef.h> and gas also accepts $ta0 .. $ta3 since binutils 2.18 so Linux should do the same for source compatibility.
2011-10-25MIPS: Add accessor macros for 64-bit performance counter registers.David Daney1-0/+8
Signed-off-by: David Daney <david.daney@cavium.com> To: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/2789/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2011-10-25MIPS: Add more CPU identifiers for Octeon II CPUs.David Daney1-0/+3
The CPU identifiers for cn68XX, cn66XX and cn61XX are known, so add them. Signed-off-by: David Daney <david.daney@cavium.com> To: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/2776/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2011-10-25MIPS: Alchemy: remove all CONFIG_SOC_AU1??? definesManuel Lauss1-114/+89
Now that no driver any longer depends on the CONFIG_SOC_AU1??? symbols, it's time to get rid of them: Move some of the platform devices to the boards which can use them, Rename a few (unused) constants in the header, Replace them with MIPS_ALCHEMY in the various Kconfig files. Finally delete them altogether from the Alchemy Kconfig file. Signed-off-by: Manuel Lauss <manuel.lauss@googlemail.com> To: Linux-MIPS <linux-mips@linux-mips.org> Patchwork: https://patchwork.linux-mips.org/patch/2707/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2011-10-25MIPS: Alchemy: kill au1xxx.h headerManuel Lauss1-43/+0
No longer required Signed-off-by: Manuel Lauss <manuel.lauss@googlemail.com> To: Linux-MIPS <linux-mips@linux-mips.org> Patchwork: https://patchwork.linux-mips.org/patch/2705/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org> delete mode 100644 arch/mips/include/asm/mach-au1x00/au1xxx.h
2011-10-25MIPS: Alchemy: clean DMA code of CONFIG_SOC_AU1??? definesManuel Lauss4-72/+68
This patch gets rid of all CONFIG_SOC_AU1XXX defines in DMA/DBDMA-related code. Signed-off-by: Manuel Lauss <manuel.lauss@googlemail.com> To: Linux-MIPS <linux-mips@linux-mips.org> Patchwork: https://patchwork.linux-mips.org/patch/2704/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2011-10-25MIPS, IDE: Alchem, au1xxx-ide: Remove pb1200/db1200 header depManuel Lauss3-4/+1
au1xxx-ide uses defines from the pb1200/db1200 headers: get DBDMA ID through platform resource information, hardcode register spacing. The only 2 users of this driver (and the only boards it can really work on realiably) use the same register layout. Signed-off-by: Manuel Lauss <manuel.lauss@googlemail.com> Cc: linux-ide@vger.kernel.org To: Linux-MIPS <linux-mips@linux-mips.org> Cc: linux-ide@vger.kernel.org Acked-by: David S. Miller <davem@davemloft.net> Patchwork: https://patchwork.linux-mips.org/patch/2716/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2011-10-25MIPS: Alchemy: Redo PCI as platform driverManuel Lauss1-49/+93
- Rewrite Alchemy PCI support as a platform driver. - Fixup boards which have PCI. Run-tested on DB1500 and DB1550. Signed-off-by: Manuel Lauss <manuel.lauss@googlemail.com> To: Linux-MIPS <linux-mips@linux-mips.org> Patchwork: https://patchwork.linux-mips.org/patch/2706/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org> delete mode 100644 arch/mips/alchemy/common/pci.c delete mode 100644 arch/mips/pci/fixup-au1000.c delete mode 100644 arch/mips/pci/ops-au1000.c create mode 100644 arch/mips/pci/pci-alchemy.c
2011-10-25MIPS: Alchemy: more base address cleanupManuel Lauss5-116/+37
remove all redundant peripheral base address defines, fix all affected boards and drivers. Signed-off-by: Manuel Lauss <manuel.lauss@googlemail.com> To: Linux-MIPS <linux-mips@linux-mips.org> Patchwork: https://patchwork.linux-mips.org/patch/2700/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2011-10-25MIPS: Alchemy: rewrite USB platform setup.Manuel Lauss1-55/+0
Use runtime CPU detection to setup all USB parts. Remove the Au1200 OTG and UDC platform devices since there are no drivers for them anyway. Clean up the USB address mess in the au1000 header. Signed-off-by: Manuel Lauss <manuel.lauss@googlemail.com> To: Linux-MIPS <linux-mips@linux-mips.org> Patchwork: https://patchwork.linux-mips.org/patch/2703/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2011-10-25MIPS: Alchemy: abstract USB block control register accessManuel Lauss1-67/+17
Alchemy chips have one or more registers which control access to the usb blocks as well as PHY configuration. I don't want the OHCI/EHCI glues to know about the different registers and bits; new code hides the gory details of USB configuration from them. Signed-off-by: Manuel Lauss <manuel.lauss@googlemail.com> To: Linux-MIPS <linux-mips@linux-mips.org> Cc: linux-usb@vger.kernel.org Acked-by: Greg Kroah-Hartman <gregkh@suse.de> Patchwork: https://patchwork.linux-mips.org/patch/2709/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org> create mode 100644 drivers/usb/host/alchemy-common.c
2011-10-25MIPS: Alchemy: support multiple GPIO styles in one kernelManuel Lauss2-32/+78
For GPIOLIB=y decide at runtime which gpiochips to register; in the GPIOLIB=n case, the gpio headers need to be reshuffled a bit to make multiple implementations coexist peacefully. Signed-off-by: Manuel Lauss <manuel.lauss@googlemail.com> To: Linux-MIPS <linux-mips@linux-mips.org> Patchwork: https://patchwork.linux-mips.org/patch/2679/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2011-10-25Merge branch 'master' of ra.kernel.org:/pub/scm/linux/kernel/git/davem/netDavid S. Miller3-4/+2
2011-10-20Revert "MIPS: LD/SD o32 macro GAS fix update"Ralf Baechle1-10/+2
This reverts commit 97475f8b42e83be2966aa2d70ab9c98477701c53 (lmo) / 82b89152f00f7ad17844d5614d5011e8d7944ac9 (kernel.org) [MIPS: LD/SD o32 macro GAS fix update]. Turns out this patch is producing many build errors with gcc 4.2. Based on further testing with a test case extracted from the build errors found further build errors and suboptimal generation even in violation of the "R" constraint. To make matters worse, the binutils changes also don't work quite as intended so revert this patch for now.
2011-10-20MIPS: SNI: Fix conflicting wrapper symbols for headers.Ralf Baechle2-6/+6
If Open Firmware / Device Tree support is enabled on a SNI RM kernel both <asm/mipsprom.h> and <asm/prom.h> will be included into some .c files. Since both headers use the same wrapper symbol only the inclusion of the first file will have an effect but the 2nd file will be ignored resulting in a build error. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2011-10-20MIPS: cache: Provide cache flush operations for XFSRalf Baechle1-0/+24
Until now flush_kernel_vmap_range() and invalidate_kernel_vmap_range() did not exist on MIPS resulting in heavy cache corruption on XFS filesystems. Left for the post-3.0 time: optimization and make this work with highmem, too. Since the combination of highmem + cache aliases atm doesn't work this isn't a regression. Signed-off-by: Ralf Baechle <ralf@linux-mips.org> Patchwork: https://patchwork.linux-mips.org/patch/2505/
2011-09-27doc: fix broken referencesPaul Bolle1-4/+2
There are numerous broken references to Documentation files (in other Documentation files, in comments, etc.). These broken references are caused by typo's in the references, and by renames or removals of the Documentation files. Some broken references are simply odd. Fix these broken references, sometimes by dropping the irrelevant text they were part of. Signed-off-by: Paul Bolle <pebolle@tiscali.nl> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2011-09-24MIPS: Octeon: Enable C0_UserLocal probing.David Daney1-1/+0
Octeon2 processor cores have a UserLocal register. Remove the hard coded negative probe and allow the standard probing to detect this feature. Signed-off-by: David Daney <david.daney@cavium.com> To: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/2578/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2011-09-21MIPS: Don't clobber CP0_STATUS value for CONFIG_MIPS_MT_SMTCDavid Daney1-2/+2
Reported-by: Edgar E. Iglesias <edgar.iglesias@gmail.com> Signed-off-by: David Daney <david.daney@cavium.com> Patchwork: https://patchwork.linux-mips.org/patch/2753/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2011-09-17MIPS: Remove unneeded version.h includes from arch/mips/Jesper Juhl1-1/+0
It was pointed out by 'make versioncheck' that some includes of linux/version.h are not needed in arch/mips/. This patch removes them. Signed-off-by: Jesper Juhl <jj@chaosbits.net> To: LKML <linux-kernel@vger.kernel.org> Cc: trivial@kernel.org Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/2540/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2011-08-08bcm47xx: add support for bcma busHauke Mehrtens2-0/+49
This patch add support for the bcma bus. Broadcom uses only Mips 74K CPUs on the new SoC and on the old ons using ssb bus there are no Mips 74K CPUs. Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de> Acked-by: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-08-08bcm47xx: make it possible to build bcm47xx without ssb.Hauke Mehrtens2-0/+16
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de> Acked-by: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-08-08bcm47xx: prepare to support different busesHauke Mehrtens2-17/+52
Prepare bcm47xx to support different System buses. Before adding support for bcma it should be possible to build bcm47xx without the need of ssb. With this patch bcm47xx does not directly contain a ssb_bus, but a union contain all the supported system buses. As a SoC just uses one system bus a union is a good choice. Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de> Acked-by: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-07-27atomic: cleanup asm-generic atomic*.h inclusionArun Sharma1-6/+0
After changing all consumers of atomics to include <linux/atomic.h>, we ran into some compile time errors due to this dependency chain: linux/atomic.h -> asm/atomic.h -> asm-generic/atomic-long.h where atomic-long.h could use funcs defined later in linux/atomic.h without a prototype. This patches moves the code that includes asm-generic/atomic*.h to linux/atomic.h. Archs that need <asm-generic/atomic64.h> need to select CONFIG_GENERIC_ATOMIC64 from now on (some of them used to include it unconditionally). Compile tested on i386 and x86_64 with allnoconfig. Signed-off-by: Arun Sharma <asharma@fb.com> Cc: Eric Dumazet <eric.dumazet@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: David Miller <davem@davemloft.net> Acked-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-07-27atomic: move atomic_add_unless to generic codeArun Sharma1-5/+5
This is in preparation for more generic atomic primitives based on __atomic_add_unless. Signed-off-by: Arun Sharma <asharma@fb.com> Signed-off-by: Hans-Christian Egtvedt <hans-christian.egtvedt@atmel.com> Reviewed-by: Eric Dumazet <eric.dumazet@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: David Miller <davem@davemloft.net> Acked-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-07-27atomic: use <linux/atomic.h>Arun Sharma4-4/+3
This allows us to move duplicated code in <asm/atomic.h> (atomic_inc_not_zero() for now) to <linux/atomic.h> Signed-off-by: Arun Sharma <asharma@fb.com> Reviewed-by: Eric Dumazet <eric.dumazet@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: David Miller <davem@davemloft.net> Cc: Eric Dumazet <eric.dumazet@gmail.com> Acked-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-07-27Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/upstream-linusLinus Torvalds21-30/+175
* 'upstream' of git://git.linux-mips.org/pub/scm/upstream-linus: (31 commits) MIPS: Close races in TLB modify handlers. MIPS: Add uasm UASM_i_SRL_SAFE macro. MIPS: RB532: Use hex_to_bin() MIPS: Enable cpu_has_clo_clz for MIPS Technologies' platforms MIPS: PowerTV: Provide cpu-feature-overrides.h MIPS: Remove pointless return statement from empty void functions. MIPS: Limit fixrange_init() to the FIXMAP region MIPS: Install handlers for software IRQs MIPS: Move FIXADDR_TOP into spaces.h MIPS: Add SYNC after cacheflush MIPS: pfn_valid() is broken on low memory HIGHMEM systems MIPS: HIGHMEM DMA on noncoherent MIPS32 processors MIPS: topdown mmap support MIPS: Remove redundant addr_limit assignment on exec. MIPS: AR7: Replace __attribute__((__packed__)) with __packed MIPS: AR7: Remove 'space before tabs' in platform.c MIPS: Lantiq: Add missing clk_enable and clk_disable functions. MIPS: AR7: Fix trailing semicolon bug in clock.c MAINTAINERS: Update MIPS entry. MIPS: BCM63xx: Remove duplicate PERF_IRQSTAT_REG definition ...
2011-07-26MIPS: Add uasm UASM_i_SRL_SAFE macro.David Daney1-0/+2
This can be used from either 32-bit or 64-bit code to generate logical right shifts of any constant amount. Signed-off-by: David Daney <david.daney@cavium.com> To: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/2576/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2011-07-26Merge branch 'for-linus' of ↵Linus Torvalds2-4/+3
git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (43 commits) fs: Merge split strings treewide: fix potentially dangerous trailing ';' in #defined values/expressions uwb: Fix misspelling of neighbourhood in comment net, netfilter: Remove redundant goto in ebt_ulog_packet trivial: don't touch files that are removed in the staging tree lib/vsprintf: replace link to Draft by final RFC number doc: Kconfig: `to be' -> `be' doc: Kconfig: Typo: square -> squared doc: Konfig: Documentation/power/{pm => apm-acpi}.txt drivers/net: static should be at beginning of declaration drivers/media: static should be at beginning of declaration drivers/i2c: static should be at beginning of declaration XTENSA: static should be at beginning of declaration SH: static should be at beginning of declaration MIPS: static should be at beginning of declaration ARM: static should be at beginning of declaration rcu: treewide: Do not use rcu_read_lock_held when calling rcu_dereference_check Update my e-mail address PCIe ASPM: forcedly -> forcibly gma500: push through device driver tree ... Fix up trivial conflicts: - arch/arm/mach-ep93xx/dma-m2p.c (deleted) - drivers/gpio/gpio-ep93xx.c (renamed and context nearby) - drivers/net/r8169.c (just context changes)
2011-07-25MIPS: Enable cpu_has_clo_clz for MIPS Technologies' platformsShinya Kuribayashi2-0/+4
Enable cpu_has_clo_clz only when CONFIG_CPU_MIPS32 or CONFIG_CPU_MIPS64 is selected. This will optimize fls() and __fls() to use CLZ insn, and eventually ffs() and __ffs() as well. Malta and MIPSSim are development platforms, and need to take care of various processor configurations, release rivisions and so on, even across different MIPS ISAs. For such platforms we have to be careful, for instance, with turning on cpu_has_mips{32,64}r[12] features. As for CLZ, all MIPS32/64 processors support it, regardless of release revisions. Signed-off-by: Shinya Kuribayashi <skuribay@pobox.com> To: David VomLehn <dvomlehn@cisco.com> To: macro@linux-mips.org Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/1453/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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