| Commit message (Collapse) | Author | Age | Files | Lines |
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Add CRTC and source positions to the Armada overlay trace entry.
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
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Implement primary plane update without having to go through a modeset
to achieve that; the hardware does not require such complexity. This
means we treat the primary plane as any other, allowing the format,
size, position and scaling to be updated via the normal plane ioctls.
This also allows us to seemlessly disable and re-enable the primary
plane when (eg) displaying full-frame video without any graphic
clipping the overlaid video - which saves wasting memory bandwidth
needlessly verifying that the colorkey is indeed filling the entire
primary plane.
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
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Extract the register generation from armada_drm_primary_set(), so that
it can be re-used.
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
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We must wait for the previous plane work to complete before moving
the overlay window, as it could overwrite our positioning update.
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
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Move the overlay plane register update generation to a separate function
as this is independent of the legacy or atomic update.
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
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Re-organise overlay register generation so that we do not have to wait
for the previous update to complete while creating the new state. This
allows the update to be fully prepared before queueing it for the next
interrupt.
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
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Disable planes at the next blanking period rather than immediately.
In order to achieve this, we need to delay the clearing of dcrtc->plane
until after the next blanking period, so move that into a separate
work function. To avoid races, we also need to move its assignment in
the overlay code.
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
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Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
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Avoid printing an error message when armada_drm_plane_work_queue() is
unable to get the vblank (eg, because we're doing a modeset.) Continue
to report the failure to the caller, so the caller can handle this.
Move the error message into armada_ovl_plane_update().
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
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Use drm_plane_helper_check_state() to check the overlay plane state
rather than drm_plane_helper_check_update(), as:
(1) using drm_plane_helper_check_state() provides a better migration
path to atomic modeset
(2) it avoids needless copies of drm rectangle structures, and so is
more efficient.
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
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Only enable the HSMOOTH control bit if we are scaling horizontally,
otherwise it makes no sense to enable the horizontal scaler.
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
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Move writes of LCD_SPU_SRAM_PARA1 under the irq lock, so that we can
add this to the frame updates at interrupt time when disabling a
plane.
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
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Move the register update structure out of the overlay private structure
into armada_plane_work, as this is common to both the primary and
overlay planes.
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
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Move the sending of events into the armada_plane_work structure, and
combine the processing in armada_drm_plane_work_call().
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
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Both the primary and overlay planes retire framebuffers in a similar
manner; this can be consolidated by moving the retirement up to the
armada_plane_work layer.
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
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Move the overlay plane work out from under the spinlock so that both the
primary and overlay planes run their work in the same context. This is
necessary so that we can use frame works with the overlay plane.
However, we must update the CRTC registers under the spinlock, so fix up
the overlay code for that.
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
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Clear the plane enable bit in the software state within
armada_drm_plane_disable() when disabling either the primary or
overlay planes.
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
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Merge armada_drm_primary_disable() into armada_drm_crtc_plane_disable()
and rename to armada_drm_plane_disable(). Use this to simplify
armada_ovl_plane_disable().
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
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Add our own hook to allow the primary plane to be disabled.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Wait for a second, and if we time out, cancel any pending work when
disabling the primary plane. This ensures that any pending work is
completed or cleaned up prior to the disable taking effect.
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
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Add a work cancel callback, so that work items can add functionality to
clean themselves up when they are cancelled.
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
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Store the plane in the armada_plane_work structure rather than passing
it around; it doesn't get used very much in the work structures, so
passing it around is a needless expense.
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
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Add and use a common frame work allocator, initialising the frame work
to a sane state.
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
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armada_drm_plane_work_cancel()'s returned work structure is never used
or referenced, so it's pointless returning it. It's also pointless
because the caller doesn't have a clue what kind of work structure it
is.
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
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We weren't correctly calculating the YUV planar offsets for subsampled
chroma planes correctly - fix up the coordinates for planes 1 and 2.
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
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Lookup the drm_format_info structure once when computing all the
framebuffer plane addresses by using drm_format_info(), rather than
repetitive lookups via drm_format_plane_cpp().
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
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The UV swap code was not always programming things correctly when
the source origin box has been offset. Fix this.
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
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Avoid powering down the overlay SRAM banks when disabling the primary
plane, thereby masking any overlay video. This feature is supposed to
allow us to cut the bandwidth required while displaying full-frame
overlay video.
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
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Fix the leak of the CRTC structure in the failure paths of
armada_drm_crtc_create().
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
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Pull ARM fixes from Russell King:
- LPAE fixes for kernel-readonly regions
- Fix for get_user_pages_fast on LPAE systems
- avoid tying decompressor to a particular platform if DEBUG_LL is
enabled
- BUG if we attempt to return to userspace but the to-be-restored PSR
value keeps us in privileged mode (defeating an issue that ftracetest
found)
* 'fixes' of git://git.armlinux.org.uk/~rmk/linux-arm:
ARM: BUG if jumping to usermode address in kernel mode
ARM: 8722/1: mm: make STRICT_KERNEL_RWX effective for LPAE
ARM: 8721/1: mm: dump: check hardware RO bit for LPAE
ARM: make decompressor debug output user selectable
ARM: fix get_user_pages_fast
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Detect if we are returning to usermode via the normal kernel exit paths
but the saved PSR value indicates that we are in kernel mode. This
could occur due to corrupted stack state, which has been observed with
"ftracetest".
This ensures that we catch the problem case before we get to user code.
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
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Currently, for ARM kernels with CONFIG_ARM_LPAE and
CONFIG_STRICT_KERNEL_RWX enabled, the 2MiB pages mapping the
kernel code and rodata are writable. They are marked read-only in
a software bit (L_PMD_SECT_RDONLY) but the hardware read-only bit
is not set (PMD_SECT_AP2).
For user mappings, the logic that propagates the software bit
to the hardware bit is in set_pmd_at(); but for the kernel,
section_update() writes the PMDs directly, skipping this logic.
The fix is to set PMD_SECT_AP2 for read-only sections in
section_update(), at the same time as L_PMD_SECT_RDONLY.
Fixes: 1e3479225acb ("ARM: 8275/1: mm: fix PMD_SECT_RDONLY undeclared compile error")
Signed-off-by: Philip Derrin <philip@cog.systems>
Reported-by: Neil Dick <neil@cog.systems>
Tested-by: Neil Dick <neil@cog.systems>
Tested-by: Laura Abbott <labbott@redhat.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Cc: stable@vger.kernel.org
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
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When CONFIG_ARM_LPAE is set, the PMD dump relies on the software
read-only bit to determine whether a page is writable. This
concealed a bug which left the kernel text section writable
(AP2=0) while marked read-only in the software bit.
In a kernel with the AP2 bug, the dump looks like this:
---[ Kernel Mapping ]---
0xc0000000-0xc0200000 2M RW NX SHD
0xc0200000-0xc0600000 4M ro x SHD
0xc0600000-0xc0800000 2M ro NX SHD
0xc0800000-0xc4800000 64M RW NX SHD
The fix is to check that the software and hardware bits are both
set before displaying "ro". The dump then shows the true perms:
---[ Kernel Mapping ]---
0xc0000000-0xc0200000 2M RW NX SHD
0xc0200000-0xc0600000 4M RW x SHD
0xc0600000-0xc0800000 2M RW NX SHD
0xc0800000-0xc4800000 64M RW NX SHD
Fixes: ded947798469 ("ARM: 8109/1: mm: Modify pte_write and pmd_write logic for LPAE")
Signed-off-by: Philip Derrin <philip@cog.systems>
Tested-by: Neil Dick <neil@cog.systems>
Reviewed-by: Kees Cook <keescook@chromium.org>
Cc: stable@vger.kernel.org
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
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Make the decompressor debug output user selectable, otherwise merely
enabling DEBUG_LL causes the decompressor to become board specific,
thereby preventing a multi-platform kernel from booting. Enabling
DEBUG_LL doesn't cause the kernel itself to become platform specific
unless EARLY_PRINTK is enabled, or one of the debugging routines is
added in a path that results in it being called.
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
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Ensure that get_user_pages_fast() is not able to access memory which
has been mapped with PROT_NONE.
Reported-by: Al Viro <viro@ZenIV.linux.org.uk>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull irq fixes from Thomas Glexiner:
- unbreak the irq trigger type check for legacy platforms
- a handful fixes for ARM GIC v3/4 interrupt controllers
- a few trivial fixes all over the place
* 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
genirq/matrix: Make - vs ?: Precedence explicit
irqchip/imgpdc: Use resource_size function on resource object
irqchip/qcom: Fix u32 comparison with value less than zero
irqchip/exiu: Fix return value check in exiu_init()
irqchip/gic-v3-its: Remove artificial dependency on PCI
irqchip/gic-v4: Add forward definition of struct irq_domain_ops
irqchip/gic-v3: pr_err() strings should end with newlines
irqchip/s3c24xx: pr_err() strings should end with newlines
irqchip/gic-v3: Fix ppi-partitions lookup
irqchip/gic-v4: Clear IRQ_DISABLE_UNLAZY again if mapping fails
genirq: Track whether the trigger type has been set
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Noticed with a Clang build. This improves the readability of the ?:
expression, as it has lower precedence than the - expression. Show
explicitly that - is evaluated first.
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lkml.kernel.org/r/20171122205645.GA27125@beast
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drivers/irqchip/irq-imgpdc.c:327:20-23: WARNING: Suspicious code.
resource_size is maybe missing with res_regs
Generated by: scripts/coccinelle/api/resource_size.cocci
Signed-off-by: Vasyl Gomonovych <gomonovych@gmail.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: marc.zyngier@arm.com
Cc: jason@lakedaemon.net
Link: https://lkml.kernel.org/r/1511215361-8279-1-git-send-email-gomonovych@gmail.com
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The comparison of u32 nregs being less than zero is never true since
nregs is unsigned. Fix this by making nregs a signed integer.
Fixes: f20cc9b00c7b ("irqchip/qcom: Add IRQ combiner driver")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Marc Zyngier <marc.zyngier@arm.com>
Cc: kernel-janitors@vger.kernel.org
Cc: Jason Cooper <jason@lakedaemon.net>
Link: https://lkml.kernel.org/r/20171117183553.2739-1-colin.king@canonical.com
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In case of error, the function of_iomap() returns NULL pointer not
ERR_PTR().
Replace the IS_ERR() test of the return value with NULL test and return
a proper error code.
Fixes: 706cffc1b912 ("irqchip/exiu: Add support for Socionext Synquacer EXIU controller")
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Cc: Marc Zyngier <marc.zyngier@arm.com>
Cc: Jason Cooper <jason@lakedaemon.net>
Link: https://lkml.kernel.org/r/1510642648-123574-1-git-send-email-weiyongjun1@huawei.com
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git://git.kernel.org/pub/scm/linux/kernel/git/maz/arm-platforms into irq/urgent
Pull irqchip updates for 4.15, take #4 from Marc Zyngier
- A core irq fix for legacy cases where the irq trigger is not reported
by firmware
- A couple of GICv3/4 fixes (Kconfig, of-node refcount, error handling)
- Trivial pr_err fixes
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The GICv3 ITS doesn't really depend on PCI. Only the PCI/MSI
part of it does, and there is no reason not to blow away most
of the irqchip stack because PCI is not selected (though not
selecting PCI seem to be asking for punishment, but hey...).
So let's split the PCI-specific part from the ITS in the Kconfig
file, and let's make that part depend on PCI. Architecture specific
hacks (arch/arm{,64}/Kconfig) will be addressed in a separate patch.
Reported-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
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In some randconfig scenarios, including arm-gic-v4.h results
in a spurious wawrning about the $SUBJECT structure not being
defined. Adding a forward definition keeps it quiet.
Reported-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
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pr_err() messages should end with a new-line to avoid other messages
being concatenated.
Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
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pr_err() messages should end with a new-line to avoid other messages
being concatenated.
Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
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Fix child-node lookup during initialisation, which ended up searching
the whole device tree depth-first starting at the parent rather than
just matching on its children.
To make things worse, the parent gic node was prematurely freed, while
the ppi-partitions node was leaked.
Fixes: e3825ba1af3a ("irqchip/gic-v3: Add support for partitioned PPIs")
Cc: stable <stable@vger.kernel.org> # 4.7
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
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Should the call to irq_set_vcpu_affinity() fail at map time,
we should restore the normal lazy-disable behaviour instead
of staying with the eager disable that GICv4 requires.
Reported-by: Eric Auger <eric.auger@redhat.com>
Acked-by: Christoffer Dall <christoffer.dall@linaro.org>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
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When requesting a shared interrupt, we assume that the firmware
support code (DT or ACPI) has called irqd_set_trigger_type
already, so that we can retrieve it and check that the requester
is being reasonnable.
Unfortunately, we still have non-DT, non-ACPI systems around,
and these guys won't call irqd_set_trigger_type before requesting
the interrupt. The consequence is that we fail the request that
would have worked before.
We can either chase all these use cases (boring), or address it
in core code (easier). Let's have a per-irq_desc flag that
indicates whether irqd_set_trigger_type has been called, and
let's just check it when checking for a shared interrupt.
If it hasn't been set, just take whatever the interrupt
requester asks.
Fixes: 382bd4de6182 ("genirq: Use irqd_get_trigger_type to compare the trigger type for shared IRQs")
Cc: stable@vger.kernel.org
Reported-and-tested-by: Petr Cvek <petrcvekcz@gmail.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull misc x86 fixes from Ingo Molnar:
- topology enumeration fixes
- KASAN fix
- two entry fixes (not yet the big series related to KASLR)
- remove obsolete code
- instruction decoder fix
- better /dev/mem sanity checks, hopefully working better this time
- pkeys fixes
- two ACPI fixes
- 5-level paging related fixes
- UMIP fixes that should make application visible faults more debuggable
- boot fix for weird virtualization environment
* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (24 commits)
x86/decoder: Add new TEST instruction pattern
x86/PCI: Remove unused HyperTransport interrupt support
x86/umip: Fix insn_get_code_seg_params()'s return value
x86/boot/KASLR: Remove unused variable
x86/entry/64: Add missing irqflags tracing to native_load_gs_index()
x86/mm/kasan: Don't use vmemmap_populate() to initialize shadow
x86/entry/64: Fix entry_SYSCALL_64_after_hwframe() IRQ tracing
x86/pkeys/selftests: Fix protection keys write() warning
x86/pkeys/selftests: Rename 'si_pkey' to 'siginfo_pkey'
x86/mpx/selftests: Fix up weird arrays
x86/pkeys: Update documentation about availability
x86/umip: Print a warning into the syslog if UMIP-protected instructions are used
x86/smpboot: Fix __max_logical_packages estimate
x86/topology: Avoid wasting 128k for package id array
perf/x86/intel/uncore: Cache logical pkg id in uncore driver
x86/acpi: Reduce code duplication in mp_override_legacy_irq()
x86/acpi: Handle SCI interrupts above legacy space gracefully
x86/boot: Fix boot failure when SMP MP-table is based at 0
x86/mm: Limit mmap() of /dev/mem to valid physical addresses
x86/selftests: Add test for mapping placement for 5-level paging
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