- 29 May, 2014 18 commits
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Russell King authored
Rather than putting quirk handling in __l2c_init(), move it out to a separate function which individual implementations can specify. This helps to localise the quirks to those implementations which require them. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Russell King authored
Rather than having this hacked into the OF initialiation function, we can handle this via the enable function instead. While here, clean up that code and comments a little. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Russell King authored
Avoid unnecessary writes to the auxiliary control register if the register already contains the required value. This allows us to avoid invoking the platforms secure monitor code unnecessarily. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Russell King authored
We should write the auxillary control register before unlocking: the write may be necessary to enable non-secure access to the lock registers. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Russell King authored
Providing an enable method gives L2 cache controllers a chance to do special handling at enable time. This allows us to remove a hack in l2x0_unlock() for Marvell Aurora L2 caches. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Russell King authored
Back in the mists of time, someone decided that it would be a good idea to group like functions together - so all the save functions in one place, all the resume functions in another, all the OF parsing functions some place else. This makes it difficult to get an overview on what a particular implementation is doing - grouping an implementations specific functions together makes more sense, because you can see what it's doing without the clutter of other implementations. Organise it according to implementation. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Russell King authored
There's no reason this functionality should be specific to DT, so move it into the common initialisation function. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Russell King authored
Pass the iomem address into this function so we don't have to keep accessing it from a global. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Russell King authored
Rather than having a boolean and other tricks to disable some bits of l2x0_init(), split this function into two parts: a common part shared between OF and non-OF, and the non-OF part. The common part can take a block of function pointers, and the cache ID (to cope with Aurora's DT specified ID.) Eliminate the redundant setting of l2x0_base in the OF case, moving it to the non-OF init function. This allows us to localise the OF-specific initialisation handling from the non-OF handling. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Russell King authored
The revision namespace is specific to the L2 cache part, so don't name these with generic identifiers, use a part specific identifier. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Russell King authored
cache_wait_way() is actually used to wait for a particular mask to report clear; it's not really got much to do with cache ways at all. Indeed, it gets used to wait for the C bit to clear on older caches. Rename this with a more generic function name which better reflects its purpose: l2c_wait_mask(). Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Russell King authored
Provide a generic helper function for way based operations. These are always background operations, and thus have to be waited for before a new operation is commenced. This helper extracts that requirement from several locations in the code. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Russell King authored
Split the cache unlock code out of l2x0_unlock(). We want to be able to re-use this functionality later. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Russell King authored
Provide a generic function which always calls the set_debug method. This will be used later in the series as some work-arounds require that the debug register be written. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Russell King authored
Rename a few things to help distinguish their function(s): l2x0_of_data -> l2c_init_data setup -> of_parse add of_ prefix to OF specific data Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Russell King authored
Remove NULL initialisers, make these all __initconst structures, and order their members in the same order as the structure declaration. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Russell King authored
Make it easier to declare L2 cache controller DT IDs by using a macro. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Russell King authored
Add WARN_ON() conditions to outer_disable() to ensure that its requirements aren't violated. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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- 22 May, 2014 6 commits
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Russell King authored
Add some documentation to cover the outer cache functions so that their requirements can be better understood. Of particular note are the flush_all() and disable() methods which must not be called except in very specific circumstances. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Russell King authored
They're u32, they're not unsigned long. The UL suffix is not required here. Acked-by: Shawn Guo <shawn.guo@linaro.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Russell King authored
Santosh says: > But we should kill all of that since we long back decided to remove > ES1.0 related code. The mach-omap code alreasy has removed the ES1.0 > compatibility so feel free to remove any specific ES1.0 > related stuff. That silicon is long dead. Acked-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Russell King authored
Spear calls outer_flush_all() from it's SMP bringup function. This is potentially dangerous as the L2C set/way operations which implement this don't take kindly to concurrent operations. Besides, there's better solutions to this, as implemented on other platforms. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Russell King authored
outer_disable() is defined to safely turn the L2 cache off without data loss: this means that outer_flush_all() should never be called unless you need to implement some special L2 cache disabling, and even then only from your replacement L2 cache disable function. Acked-by: Barry Song <Baohua.Song@csr.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Russell King authored
No one ever calls this function anywhere in the kernel, so let's completely remove it from the outer cache API and turn it into an internal-only thing. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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- 21 May, 2014 16 commits
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Linus Torvalds authored
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git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpcLinus Torvalds authored
Pull two powerpc fixes from Ben Herrenschmidt: "Here are a couple of fixes for 3.15. One from Anton fixes a nasty regression I introduced when trying to fix a loss of irq_work whose consequences is that we can completely lose timer interrupts on a CPU... not pretty. The other one is a change to our PCIe reset hook to use a firmware call instead of direct config space accesses to trigger a fundamental reset on the root port. This is necessary so that the FW gets a chance to disable the link down error monitoring, which would otherwise trip and cause subsequent fatal EEH error" * 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: powerpc: irq work racing with timer interrupt can result in timer interrupt hang powerpc/powernv: Reset root port in firmware
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git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfsLinus Torvalds authored
Pull two btrfs fixes from Chris Mason: "This has two fixes that we've been testing for 3.16, but since both are safe and fix real bugs, it makes sense to send for 3.15 instead" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs: Btrfs: send, fix incorrect ref access when using extrefs Btrfs: fix EIO on reading file after ioctl clone works on it
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git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-clientLinus Torvalds authored
Pull two ceph fixes from Sage Weil: "The first patch fixes a problem when we have a page count of 0 for sendpage which is triggered by zfs. The second fixes a bug in CRUSH that was resolved in the userland code a while back but fell through the cracks on the kernel side" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client: crush: decode and initialize chooseleaf_vary_r libceph: fix corruption when using page_count 0 page in rbd
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git://oss.sgi.com/xfs/xfsLinus Torvalds authored
Pull xfs fixes from Dave Chinner: "Code inspection of the XFS error number sign translations found a bunch of issues, including returning incorrectly signed errors for some data integrity operations. These leak to userspace and result in applications not getting the errors correctly reported. Hence they need fixing sooner rather than later. A couple of the bugs are in data integrity operations, a couple more are in the new COLLAPSE_RANGE code. One of these came in through a recent ext4 merge and so I had to update the base tree to 3.15-rc5 before fixing the issues" * tag 'xfs-for-linus-3.15-rc6' of git://oss.sgi.com/xfs/xfs: xfs: list_lru_init returns a negative error xfs: negate xfs_icsb_init_counters error value xfs: negate mount workqueue init error value xfs: fix wrong err sign on xfs_set_acl() xfs: fix wrong errno from xfs_initxattrs xfs: correct error sign on COLLAPSE_RANGE errors xfs: xfs_commit_metadata returns wrong errno xfs: fix incorrect error sign in xfs_file_aio_read xfs: xfs_dir_fsync() returns positive errno
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git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfsLinus Torvalds authored
Pull renameat2 arch support from Miklos Szeredi: "I've collected architecture patches for the renameat2 syscall that maintainers acked and/or asked me to queue. This adds architecture support for the renameat2 syscall to m68k, parisc, ia64 and through asm-generic to arc, arm64, c6x, hexagon, metag, openrisc, score, tile, unicore32" * 'renameat2' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs: scripts/checksyscalls.sh: Make renameat optional asm-generic: Add renameat2 syscall ia64: add renameat2 syscall parisc: add renameat2 syscall m68k: add renameat2 syscall
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git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommuLinus Torvalds authored
Pull iommu fixes from Joerg Roedel: "Three fixes for the AMD IOMMU driver: - fix a locking issue around get_user_pages() - fix two issues with device aliasing and exclusion range handling" * tag 'iommu-fixes-v3.15-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu: iommu/amd: fix enabling exclusion range for an exact device iommu/amd: Take mmap_sem when calling get_user_pages iommu/amd: Fix interrupt remapping for aliased devices
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Linus Torvalds authored
Merge tag 'stable/for-linus-3.15-rc5-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/ibft Pull iscsi_ibft fix from Konrad Rzeszutek Wilk: "Fix iBFT regression on Broadcom NICs introduced in 3.2" * tag 'stable/for-linus-3.15-rc5-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/ibft: iscsi_ibft: Fix finding Broadcom specific ibft sign
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Linus Torvalds authored
Merge tag 'renesas-sh-drivers-for-v3.15' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas Pull SH driver fix from Simon Horman: "Compile drivers/sh/pm_runtime.c if ARCH_SHMOBILE_MULTI This resolves a regression introduced in v3.14 by commit bf98c1ea ("ARM: Rename ARCH_SHMOBILE to ARCH_SHMOBILE_LEGACY")" * tag 'renesas-sh-drivers-for-v3.15' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas: drivers: sh: compile drivers/sh/pm_runtime.c if ARCH_SHMOBILE_MULTI
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git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-mediaLinus Torvalds authored
Pull media fixes from Mauro Carvalho Chehab: "Most of the changes are drivers fixes (rtl28xuu, fc2580, ov7670, davinci, gspca, s5p-fimc and s5c73m3). There is also a compat32 fix and one infoleak fixup at the media controller" * 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: [media] V4L2: fix VIDIOC_CREATE_BUFS in 64- / 32-bit compatibility mode [media] V4L2: ov7670: fix a wrong index, potentially Oopsing the kernel from user-space [media] media-device: fix infoleak in ioctl media_enum_entities() [media] fc2580: fix tuning failure on 32-bit arch [media] Prefer gspca_sonixb over sn9c102 for all devices [media] media: davinci: vpfe: make sure all the buffers unmapped and released [media] staging: media: davinci: vpfe: make sure all the buffers are released [media] media: davinci: vpbe_display: fix releasing of active buffers [media] media: davinci: vpif_display: fix releasing of active buffers [media] media: davinci: vpif_capture: fix releasing of active buffers [media] s5p-fimc: Fix YUV422P depth [media] s5c73m3: Add missing rename of v4l2_of_get_next_endpoint() function [media] rtl28xxu: silence error log about disabled rtl2832_sdr module [media] rtl28xxu: do not hard depend on staging SDR module
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/stagingLinus Torvalds authored
Pull staging driver fixes from Greg KH: "Here are five staging driver fixes for 3.15-rc6 that resolve some reported issues. They are for the imx and rtl8723au drivers" * tag 'staging-3.15-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: staging: rtl8723au: Do not reset wdev->iftype in netdev_close() staging: rtl8723au: Use correct pipe type for USB interrupts imx-drm: imx-tve: correct DDC property name to 'ddc-i2c-bus' imx-drm: imx-drm-core: skip components whose parent device is disabled imx-drm: imx-drm-core: fix imx_drm_encoder_get_mux_id
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Linus Torvalds authored
Merge tag 'driver-core-3.15-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core Pull driver core fixes from Greg KH: "Here are two driver core (well, sysfs) fixes for 3.15-rc6 that resolve some reported issues and a regression from 3.13" * tag 'driver-core-3.15-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: sysfs: make sure read buffer is zeroed kernfs, sysfs, cgroup: restrict extra perm check on open to sysfs
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git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pciLinus Torvalds authored
Pull PCI fixes from Bjorn Helgaas: "These are fixes for an SHPCHP hotplug regression, a "wait for pending transaction" problem (used in device reset paths), and an email address update. PCI device hotplug: - Fix SHPCHP bus speed mismatch issue (Marcel Apfelbaum) Miscellaneous: - Fix pci_wait_for_pending_transaction() (Gavin Shan) - Update email address (Ben Hutchings)" * tag 'pci-v3.15-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: PCI: Wrong register used to check pending traffic PCI: shpchp: Check bridge's secondary (not primary) bus speed PCI: Update my email address
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git://git.kernel.org/pub/scm/linux/kernel/git/tytso/randomLinus Torvalds authored
Pull /dev/random fix from Ted Ts'o: "This fixes a BUG_ON-causing regression that was introduced during the last merge window" * tag 'random_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/random: random: fix BUG_ON caused by accounting simplification
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git://git.linaro.org/people/mike.turquette/linuxLinus Torvalds authored
Pull clock framework fixes from Mike Turquette: "Clock framework and driver fixes, all of which fix user-visible regressions. As usual most fixes are for platform-specific clock drivers, but there are also two fixes to the clk core after recent changes to the way that clock unregistration is handled" * tag 'clk-fixes-for-linus' of git://git.linaro.org/people/mike.turquette/linux: clk: tegra: Fix wrong value written to PLLE_AUX clk: shmobile: clk-mstp: change to using clock-indices clk: Fix slab corruption in clk_unregister() clk: Fix double free due to devm_clk_register() clk: socfpga: fix clock driver for 3.15 clk: divider: Fix best div calculation for power-of-two and table dividers clk: bcm281xx: don't use unnamed structs or unions
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git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spiLinus Torvalds authored
Pull spi fixes from Mark Brown: "A few core fixes around outlying cases here, nothing that should affect most users but useful fixes. The diffstat is rather larger than one might hope due some simple code motion in the fix for !CONFIG_DMA, the actual meaningful change is much smaller. - Fix handling of unsupported dual and quad mode support on slave registration so that drivers that can degrade gracefully do so, preventing regressions for drivers this is added. - Fix build in !CONFIG_DMA cases following addition of generic DMA mapping support. - Fix error handling for queue creation which due to wider kernel changes can be triggered more easily. - A couple of driver specific fixes" * tag 'spi-v3.15-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi: spi/pxa2xx: Prevent DMA from transferring too many bytes spi: core: Don't destroy master queue if we fail to create it spi: qup: Fix return value checking for pm_runtime_get_sync() spi: core: Protect DMA code by #ifdef CONFIG_HAS_DMA spi: core: Ignore unsupported Dual/Quad Transfer Mode bits
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