- 17 Sep, 2012 11 commits
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Marc Zyngier authored
This patch adds the support for IRQ handling. The actual interrupt controller will be part of a separate patch (going into drivers/irqchip/). Signed-off-by: Marc Zyngier <marc.zyngier@arm.com> Signed-off-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> Acked-by: Tony Lindgren <tony@atomide.com> Acked-by: Nicolas Pitre <nico@linaro.org> Acked-by: Olof Johansson <olof@lixom.net> Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
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Catalin Marinas authored
This patch adds the TLB maintenance functions. There is no distinction made between the I and D TLBs. TLB maintenance operations are automatically broadcast between CPUs in hardware. The inner-shareable operations are always present, even on UP systems. NOTE: Large part of this patch to be dropped once Peter Z's generic mmu_gather patches are merged. Signed-off-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> Acked-by: Tony Lindgren <tony@atomide.com> Acked-by: Nicolas Pitre <nico@linaro.org> Acked-by: Olof Johansson <olof@lixom.net> Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Acked-by: Arnd Bergmann <arnd@arndb.de>
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Catalin Marinas authored
The patch adds functionality required for cache maintenance. The AArch64 architecture mandates non-aliasing VIPT or PIPT D-cache and VIPT (may have aliases) or ASID-tagged VIVT I-cache. Cache maintenance operations are automatically broadcast in hardware between CPUs. Signed-off-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> Acked-by: Tony Lindgren <tony@atomide.com> Acked-by: Nicolas Pitre <nico@linaro.org> Acked-by: Olof Johansson <olof@lixom.net> Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Acked-by: Arnd Bergmann <arnd@arndb.de>
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Catalin Marinas authored
This patch adds AArch64 CPU specific functionality. It assumes that the implementation is generic to AArch64 and does not require specific identification. Different CPU implementations may require the setting of various ACTLR_EL1 bits but such information is not currently available and it should ideally be pushed to firmware. Signed-off-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> Acked-by: Tony Lindgren <tony@atomide.com> Acked-by: Nicolas Pitre <nico@linaro.org> Acked-by: Olof Johansson <olof@lixom.net> Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
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Catalin Marinas authored
The patch adds support for thread creation and context switching. The context switching CPU specific code is introduced with the CPU support patch (part of the arch/arm64/mm/proc.S file). AArch64 supports ASID-tagged TLBs and the ASID can be either 8 or 16-bit wide (detectable via the ID_AA64AFR0_EL1 register). Signed-off-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> Acked-by: Tony Lindgren <tony@atomide.com> Acked-by: Nicolas Pitre <nico@linaro.org> Acked-by: Olof Johansson <olof@lixom.net> Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Acked-by: Arnd Bergmann <arnd@arndb.de>
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Catalin Marinas authored
This patch adds support for the handling of the MMU faults (exception entry code introduced by a previous patch) and page table management. The user translation table is pointed to by TTBR0 and the kernel one (swapper_pg_dir) by TTBR1. There is no translation information shared or address space overlapping between user and kernel page tables. Signed-off-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> Acked-by: Tony Lindgren <tony@atomide.com> Acked-by: Nicolas Pitre <nico@linaro.org> Acked-by: Olof Johansson <olof@lixom.net> Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Acked-by: Arnd Bergmann <arnd@arndb.de>
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Catalin Marinas authored
This patch contains the initialisation of the memory blocks, MMU attributes and the memory map. Only five memory types are defined: Device nGnRnE (equivalent to Strongly Ordered), Device nGnRE (classic Device memory), Device GRE, Normal Non-cacheable and Normal Cacheable. Cache policies are supported via the memory attributes register (MAIR_EL1) and only affect the Normal Cacheable mappings. This patch also adds the SPARSEMEM_VMEMMAP initialisation. Signed-off-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> Acked-by: Tony Lindgren <tony@atomide.com> Acked-by: Nicolas Pitre <nico@linaro.org> Acked-by: Olof Johansson <olof@lixom.net> Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Acked-by: Arnd Bergmann <arnd@arndb.de>
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Catalin Marinas authored
The virtual memory layout is described in Documentation/arm64/memory.txt. This patch adds the MMU definitions for the 4KB and 64KB translation table configurations. The SECTION_SIZE is 2MB with 4KB page and 512MB with 64KB page configuration. PHYS_OFFSET is calculated at run-time and stored in a variable (no run-time code patching at this stage). On the current implementation, both user and kernel address spaces are 512G (39-bit) each with a maximum of 256G for the RAM linear mapping. Linux uses 3 levels of translation tables with the 4K page configuration and 2 levels with the 64K configuration. Extending the memory space beyond 39-bit with the 4K pages or 42-bit with 64K pages requires an additional level of translation tables. The SPARSEMEM configuration is global to all AArch64 platforms and allows for 1GB sections with SPARSEMEM_VMEMMAP enabled by default. Signed-off-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> Acked-by: Tony Lindgren <tony@atomide.com> Acked-by: Nicolas Pitre <nico@linaro.org> Acked-by: Olof Johansson <olof@lixom.net> Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Acked-by: Arnd Bergmann <arnd@arndb.de>
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Catalin Marinas authored
The patch contains the exception entry code (kernel/entry.S), pt_regs structure and related accessors, undefined instruction trapping and stack tracing. AArch64 Linux kernel (including kernel threads) runs in EL1 mode using the SP1 stack. The vectors don't have a fixed address, only alignment (2^11) requirements. Signed-off-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> Acked-by: Tony Lindgren <tony@atomide.com> Acked-by: Nicolas Pitre <nico@linaro.org> Acked-by: Olof Johansson <olof@lixom.net> Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Acked-by: Arnd Bergmann <arnd@arndb.de>
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Catalin Marinas authored
The patch adds the kernel booting and the initial setup code. Documentation/arm64/booting.txt describes the booting protocol on the AArch64 Linux kernel. This is subject to change following the work on boot standardisation, ACPI. Signed-off-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> Acked-by: Nicolas Pitre <nico@linaro.org> Acked-by: Tony Lindgren <tony@atomide.com> Acked-by: Olof Johansson <olof@lixom.net> Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Acked-by: Arnd Bergmann <arnd@arndb.de>
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Catalin Marinas authored
This patch introduces several assembly macros and definitions used in the .S files across arch/arm64/ like IRQ disabling/enabling, together with asm-offsets.c. Signed-off-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> Acked-by: Tony Lindgren <tony@atomide.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Nicolas Pitre <nico@linaro.org> Acked-by: Olof Johansson <olof@lixom.net> Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
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- 14 Sep, 2012 2 commits
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Catalin Marinas authored
This patch implements ffs, __ffs, fls, __fls using __builtin_* gcc functions. These header files can be used by other architectures that rely on the gcc builtins. Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> Acked-by: Arnd Bergmann <arnd@arndb.de>
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Catalin Marinas authored
On AArch64 Linux, we want the sys_stat64() and related functions for compat support but do not need the generic struct stat64, enabled automatically if __ARCH_WANT_STAT64. Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> Acked-by: Arnd Bergmann <arnd@arndb.de>
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- 01 Sep, 2012 5 commits
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Linus Torvalds authored
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John Stultz authored
Andreas Bombe reported that the added ktime_t overflow checking added to timespec_valid in commit 4e8b1452 ("time: Improve sanity checking of timekeeping inputs") was causing problems with X.org because it caused timeouts larger then KTIME_T to be invalid. Previously, these large timeouts would be clamped to KTIME_MAX and would never expire, which is valid. This patch splits the ktime_t overflow checking into a new timespec_valid_strict function, and converts the timekeeping codes internal checking to use this more strict function. Reported-and-tested-by: Andreas Bombe <aeb@debian.org> Cc: Zhouping Liu <zliu@redhat.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Prarit Bhargava <prarit@redhat.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: stable@vger.kernel.org Signed-off-by: John Stultz <john.stultz@linaro.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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git://git.kernel.org/pub/scm/virt/kvm/kvmLinus Torvalds authored
Pull KVM bugfixes from Marcelo Tosatti. * git://git.kernel.org/pub/scm/virt/kvm/kvm: KVM: x86: fix KVM_GET_MSR for PV EOI kvm: Fix nonsense handling of compat ioctl
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git://git.kernel.org/pub/scm/linux/kernel/git/jejb/parisc-2.6Linus Torvalds authored
Pull PARISC fixes from James Bottomley: "This is a set of two bug fixes. One is the ATOMIC problem which is now causing a compile failure in certain situations. The other is mishandling of PER_LINUX32 which may also cause user visible effects. Signed-off-by: James Bottomley <JBottomley@Parallels.com>" * tag 'parisc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/parisc-2.6: [PARISC] fix personality flag check in copy_thread() [PARISC] Redefine ATOMIC_INIT and ATOMIC64_INIT to drop the casts
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git://git.kernel.org/pub/scm/linux/kernel/git/s390/linuxLinus Torvalds authored
Pull s390 fixes from Martin Schwidefsky: "A couple of s390 bug fixes for 3.5-rc4" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: s390/32: Don't clobber personality flags on exec s390/smp: add missing smp_store_status() for !SMP s390/dasd: fix ioctl return value s390: Always use "long" for ssize_t to match size_t
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- 30 Aug, 2012 5 commits
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git://people.freedesktop.org/~airlied/linuxLinus Torvalds authored
Pull drm fixes from Dave Airlie: "A bunch of scattered fixes ati/intel/nouveau, couple of core ones, nothing too shocking or different." * 'drm-fixes' of git://people.freedesktop.org/~airlied/linux: drm: Add EDID_QUIRK_FORCE_REDUCED_BLANKING for ASUS VW222S gma500: Consider CRTC initially active. drm/radeon: fix dig encoder selection on DCE61 drm/radeon: fix double free in radeon_gpu_reset drm/radeon: force dma32 to fix regression rs4xx,rs6xx,rs740 drm/radeon: rework panel mode setup drm/radeon/atom: powergating fixes for DCE6 drm/radeon/atom: rework DIG modesetting on DCE3+ drm/radeon: don't disable plls that are in use by other crtcs drm/radeon: add proper checking of RESOLVE_BOX command for r600-r700 drm/radeon: initialize tracked CS state drm/radeon: fix reading CB_COLORn_MASK from the CS drm/nvc0/copy: check PUNITS to determine which copy engines are disabled i915: Quirk no_lvds on Gigabyte GA-D525TUD ITX motherboard drm/i915: Use the correct size of the GTT for placing the per-process entries drm: Check for invalid cursor flags drm: Initialize object type when using DRM_MODE() macro drm/i915: fix color order for BGR formats on IVB drm/i915: fix wrong order of parameters in port checking functions
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Heiko Carstens authored
In native 32 bit mode the personality flags were not correctly inherited. This is the s390 version of 59e4c3a2 "powerpc/32: Don't clobber personality flags on exec". Reported-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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Paul Menzel authored
Connecting an ASUS VW222S [1] over VGA a garbled screen is shown with vertical stripes in the top half. In commit bc42aabc [2] commit bc42aabc Author: Adam Jackson <ajax@redhat.com> Date: Wed May 23 16:26:54 2012 -0400 drm/edid/quirks: ViewSonic VA2026w Adam Jackson added the quirk `EDID_QUIRK_FORCE_REDUCED_BLANKING` which is also needed for this ASUS monitor. All log files and output from `xrandr` is included in the referenced Bugzilla report #17629. Please note that this monitor only has a VGA (D-Sub) connector [1]. [1] http://www.asus.com/Display/LCD_Monitors/VW222S/ [2] http://git.kernel.org/?p=linux/kernel/git/torvalds/linux.git;a=commit;h=bc42aabc6a01b92b0f961d65671564e0e1cd7592 Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=17629Signed-off-by: Paul Menzel <paulepanter@users.sourceforge.net> Cc: <dri-devel@lists.freedesktop.org> Cc: Adam Jackson <ajax@redhat.com> Cc: Ian Pilcher <arequipeno@gmail.com> Cc: <stable@vger.kernel.org> Signed-off-by: Dave Airlie <airlied@redhat.com>
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git://people.freedesktop.org/~agd5f/linuxDave Airlie authored
Alex writes: Highlights: - fix a gart regression on older IGP chips - more MSAA fixes - fix a double free in gpu reset code - modesetting fixes - trinity dig encoder fix. * 'drm-fixes-3.6' of git://people.freedesktop.org/~agd5f/linux: drm/radeon: fix dig encoder selection on DCE61 drm/radeon: fix double free in radeon_gpu_reset drm/radeon: force dma32 to fix regression rs4xx,rs6xx,rs740 drm/radeon: rework panel mode setup drm/radeon/atom: powergating fixes for DCE6 drm/radeon/atom: rework DIG modesetting on DCE3+ drm/radeon: don't disable plls that are in use by other crtcs drm/radeon: add proper checking of RESOLVE_BOX command for r600-r700 drm/radeon: initialize tracked CS state drm/radeon: fix reading CB_COLORn_MASK from the CS
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Forest Bond authored
[this one ideally should make 3.6 - it fixes the very annoying mode setting bug] This causes the pipe to be forced off prior to initial mode set, which roughly mirrors the behavior of the i915 driver. It fixes initial mode setting on my Intel DN2800MT (Cedarview) board. Without it, mode setting triggers an out-of-range error from the monitor for most modes, but only on initial configuration (i.e. they can be configured successfully from userspace after that). Signed-off-by: Forest Bond <forest.bond@rapidrollout.com> Signed-off-by: Alan Cox <alan@linux.intel.com> Cc: stable <stable@vger.kernel.org> Signed-off-by: Dave Airlie <airlied@redhat.com>
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- 29 Aug, 2012 17 commits
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Alex Deucher authored
Was using the DCE41 code which was wrong. Fixes blank displays on a number of Trinity systems. Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Cc: stable@vger.kernel.org
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git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfsLinus Torvalds authored
Pull btrfs fixes from Chris Mason: "I've split out the big send/receive update from my last pull request and now have just the fixes in my for-linus branch. The send/recv branch will wander over to linux-next shortly though. The largest patches in this pull are Josef's patches to fix DIO locking problems and his patch to fix a crash during balance. They are both well tested. The rest are smaller fixes that we've had queued. The last rc came out while I was hacking new and exciting ways to recover from a misplaced rm -rf on my dev box, so these missed rc3." * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs: (25 commits) Btrfs: fix that repair code is spuriously executed for transid failures Btrfs: fix ordered extent leak when failing to start a transaction Btrfs: fix a dio write regression Btrfs: fix deadlock with freeze and sync V2 Btrfs: revert checksum error statistic which can cause a BUG() Btrfs: remove superblock writing after fatal error Btrfs: allow delayed refs to be merged Btrfs: fix enospc problems when deleting a subvol Btrfs: fix wrong mtime and ctime when creating snapshots Btrfs: fix race in run_clustered_refs Btrfs: don't run __tree_mod_log_free_eb on leaves Btrfs: increase the size of the free space cache Btrfs: barrier before waitqueue_active Btrfs: fix deadlock in wait_for_more_refs btrfs: fix second lock in btrfs_delete_delayed_items() Btrfs: don't allocate a seperate csums array for direct reads Btrfs: do not strdup non existent strings Btrfs: do not use missing devices when showing devname Btrfs: fix that error value is changed by mistake Btrfs: lock extents as we map them in DIO ...
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git://www.linux-watchdog.org/linux-watchdogLinus Torvalds authored
Pull watchdog fixes from Wim Van Sebroeck: "This will fix a warning for watchdog-test.c and it will remove a duplicate include of delay.h" * git://www.linux-watchdog.org/linux-watchdog: watchdog: da9052: Remove duplicate inclusion of delay.h watchdog: fix watchdog-test.c build warning
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David Rientjes authored
cache_grow() can reenable irqs so the cpu (and node) can change, so ensure that we take list_lock on the correct nodelist. This fixes an issue with commit 072bb0aa ("mm: sl[au]b: add knowledge of PFMEMALLOC reserve pages") where list_lock for the wrong node was taken after growing the cache. Reported-and-tested-by: Haggai Eran <haggaie@mellanox.com> Signed-off-by: David Rientjes <rientjes@google.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Christian König authored
radeon_ring_restore is freeing the memory for the saved ring data. We need to remember that, otherwise we try to restore the ring data again on the next try. Additional to that it shouldn't try the reset infinitely if we have saved ring data. Signed-off-by: Christian König <deathsimple@vodafone.de> Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
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Jerome Glisse authored
It seems some of those IGP dislike non dma32 page despite what documentation says. Fix regression since we allowed non dma32 pages. It seems it only affect some revision of those IGP chips as we don't know which one just force dma32 for all of them. https://bugzilla.redhat.com/show_bug.cgi?id=785375Signed-off-by: Jerome Glisse <jglisse@redhat.com> Cc: <stable@vger.kernel.org> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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Alex Deucher authored
Adjust the panel mode setup to match the behavior of the vbios. Rather than checking for specific bridge chip ids, just check the eDP configuration register. This saves extra aux transactions and works across DP bridge chips without requiring additional per chip id checking. Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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Alex Deucher authored
Power gating is per crtc pair, but the powergating registers should be called individually. The hw handles power up/down properly. The pair is powered up if either crtc in the pair is powered up and the pair is not powered down until both crtcs in the pair are powered down. This simplifies programming and should save additional power as the previous code never actually power gated the crtc pair. Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Cc: stable@vger.kernel.org
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Alex Deucher authored
The ordering is important and the current drm code wasn't cutting it for modern DIG encoders. We need to have information about crtc before setting up the encoders so I've shifted the ordering a bit. Probably we'll need a full rework akin to danvet's recent intel patchs. This patch fixes numerous issues with DP bridge chips and makes link training much more reliable. Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Cc: stable@vger.kernel.org
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Alex Deucher authored
Some plls are shared for DP. Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Cc: stable@vger.kernel.org Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
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Marek Olšák authored
Checking of the second colorbuffer was skipped on r700, because CB_TARGET_MASK was 0xf. With r600, CB_TARGET_MASK is changed to 0xff, so we must set the number of samples of the second colorbuffer to 1 in order to pass the CS checker. The DRM version is bumped, because RESOLVE_BOX is always rejected without this fix on r600. Signed-off-by: Marek Olšák <maraeo@gmail.com> Reviewed-by: Jerome Glisse <jglisse@redhat.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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Marek Olšák authored
This should help catch uninitialized registers and reject commands because of that. Signed-off-by: Marek Olšák <maraeo@gmail.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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Marek Olšák authored
Signed-off-by: Marek Olšák <maraeo@gmail.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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Sachin Kamat authored
delay.h header file was included twice. Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
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Randy Dunlap authored
Fix compiler warning by making the function static: Documentation/watchdog/src/watchdog-test.c:34:6: warning: no previous prototype for 'term' Signed-off-by: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
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git://people.freedesktop.org/~danvet/drm-intelDave Airlie authored
Daniel writes: "Just a few smaller things: - Fix up a pipe vs. plane confusion from a refactoring, fixes a regression from 3.1 (Anhua Xu). - Fix ivb sprite pixel formats (Vijay). - Fixup ppgtt pde placement for machines where the Bios artifically limits the availbale gtt space in the name of ... product differentiation (Chris). This fixes an oops. - Yet another no_lvds quirk entry." * 'drm-intel-fixes' of git://people.freedesktop.org/~danvet/drm-intel: i915: Quirk no_lvds on Gigabyte GA-D525TUD ITX motherboard drm/i915: Use the correct size of the GTT for placing the per-process entries drm/i915: fix color order for BGR formats on IVB drm/i915: fix wrong order of parameters in port checking functions
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Dave Airlie authored
Merge branch 'drm-nouveau-fixes' of git://anongit.freedesktop.org/git/nouveau/linux-2.6 into drm-fixes Ben says its just a single fix to avoid the wrong pcopy units being used. * 'drm-nouveau-fixes' of git://anongit.freedesktop.org/git/nouveau/linux-2.6: drm/nvc0/copy: check PUNITS to determine which copy engines are disabled
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