| Commit message (Collapse) | Author | Age | Files | Lines |
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preserve_crunch_context() calls __copy_to_user() which expects the
destination address to be in __user space. setup_sigframe() properly
passes the destination address.
restore_crunch_context() calls __copy_from_user() which expects the
source address to be in __user space. restore_sigframe() properly
passes the source address.
This fixes {preserve/restore}_crunch_context() to accept the
address as __user space and resolves the following sparse warnings:
arch/arm/kernel/signal.c:146:31:
warning: incorrect type in argument 1 (different address spaces)
expected void [noderef] <asn:1>*to
got struct crunch_sigframe *frame
arch/arm/kernel/signal.c:156:38:
warning: incorrect type in argument 2 (different address spaces)
expected void const [noderef] <asn:1>*from
got struct crunch_sigframe *frame
arch/arm/kernel/signal.c:250:48:
warning: incorrect type in argument 1 (different address spaces)
expected struct crunch_sigframe *frame
got struct crunch_sigframe [noderef] <asn:1>*<noident>
arch/arm/kernel/signal.c:365:49:
warning: incorrect type in argument 1 (different address spaces)
expected struct crunch_sigframe *frame
got struct crunch_sigframe [noderef] <asn:1>*<noident>
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Stop referencing CLOCK_TICK_RATE in the KS8695 drivers, rather refer
to a KS8695_CLOCK_RATE.
Issue pointed out by Russell King on arm-linux-kernel mailing list.
Signed-off-by: Andrew Victor <linux@maxim.org.za>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Rename the structure to avoid the following warning:
WARNING: vmlinux.o(.data+0x11ef4): Section mismatch in reference from the variable
s3c6400_serial_drv to the function .devexit.text:s3c24xx_serial_remove()
The variable s3c6400_serial_drv references
the function __devexit s3c24xx_serial_remove()
If the reference is valid then annotate the
variable with __exit* (see linux/init.h) or name the variable:
*driver, *_template, *_timer, *_sht, *_ops, *_probe, *_probe_one, *_console,
Signed-off-by: Ramax Lo <ramaxlo@gmail.com>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
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During kernel build process, the following warning was found:
WARNING: drivers/serial/built-in.o(.data+0x304): Section mismatch in reference from
the variable s3c2440_serial_drv to the function .devexit.text:s3c24xx_serial_remove()
The variable s3c2440_serial_drv references the function __devexit s3c24xx_serial_remove()
If the reference is valid then annotate the variable with
__exit* (see linux/init.h) or name the variable:
*driver, *_template, *_timer, *_sht, *_ops, *_probe, *_probe_one, *_console,
The same warning happened for s3c241x platform. We rename variables to avoid
these warnings. These changes also apply to s3c2400 & s3c24a0 for consistency.
Signed-off-by: Ramax Lo <ramaxlo@gmail.com>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
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The pwm hardware only checks the compare register after a decrement,
so the pin never toggles if tcmp = tcnt.
This happens when a very low duty cycle is requested. Fix it by always
ensuring that tcmp < tcnt.
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
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Make software reset to avoid freeze if PCI bus was messed up
Signed-off-by: Yegor Yefremov <yegorslists@googlemail.com>
Acked-by: Andrew Victor <linux@maxim.org.za>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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The value of armclk_mask needs to be inverted for use as a mask on
the register value when updating ARM_RATIO.
This is critical for cpufreq support, without it attempts to scale
the frequency of the core trash pretty much the entire clock tree.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
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If the requested clock is faster than the parent clock then the
parent clock is the closest we can get to the request so we need
to return that instead of the requested clock.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
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In the s3c_gpiolib_getchip implementation for s3c24xx the check whether a pin is
in the gpio banks range is reversed. Thus the function returns NULL for valid
pins and the gpio chip if its not valid.
As a result gpio states are not saved/restored properly during suspend/resume.
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
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Objects passed to kmemleak_seq_next() have an incremented reference
count (hence not freed) but they may point via object_list.next to
other freed objects. To avoid this, the whole start/next/stop sequence
must be protected by rcu_read_lock().
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6
* 'drm-radeon-kms' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6: (35 commits)
drm/radeon: set fb aperture sizes for framebuffer handoff.
drm/ttm: fix highuser vs dma32 confusion.
drm/radeon: Fix size used for benchmarking BO copies.
drm/radeon: Add radeon.test parameter for running BO GPU copy tests.
drm/radeon/kms: allow interruptible waits for objects.
drm/ttm: powerpc: Fix Highmem cache flushing.
x86: Export kmap_atomic_prot() needed for TTM.
drm/ttm: Fix ttm in-kernel copying of pages with non-standard caching attributes.
drm/ttm: Fix an oops and sync object leak.
drm/radeon/kms: vram sizing on certain r100 chips needs workaround.
drm/radeon: Pay more attention to object placement requested by userspace.
drm/radeon: Fall back to evicting BOs with memcpy if necessary.
drm/radeon: Don't unreserve twice on failure to validate.
drm/radeon/kms: fix bandwidth computation on avivo hardware
drm/radeon/kms: add initial colortiling support.
drm/radeon/kms: fix hotspot handling on pre-avivo chips
drm/radeon/kms: enable frac fb divs on rs600/rs690/rs740
drm/radeon/kms: add PLL flag to prefer frequencies <= the target freq
drm/radeon/kms: block RN50 from using 3D engine.
drm/radeon/kms: fix VRAM sizing like DDX does it.
...
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This will allow efi/vesa to handoff to radeon.
Signed-off-by: Dave Airlie <airlied@redhat.com>
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DMA32 and highmem are sort of exclusive.
Noticed by AndrewR on #radeon.
Signed-off-by: Dave Airlie <airlied@redhat.com>
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The incorrect size caused benchmark results to be inflated by a factor of 4.
Signed-off-by: Michel Dänzer <daenzer@vmware.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
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If enabled, during initialization BO GTT->VRAM and VRAM->GTT GPU copies are
tested across the whole GTT aperture.
This has helped uncover the benchmark copy size bug and verify the maximum
aperture size supported by the AGP bridge in my PowerBook.
Signed-off-by: Michel Dänzer <daenzer@vmware.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
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Blocking here isn't something the X server mouse appreciates,
avoid the block and let userspace retry the waits.
libdrm_radeon userspace library is also expecting EBUSY not ERESTART
Signed-off-by: Dave Airlie <airlied@redhat.com>
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Temporarily maps highmem pages while flushing to get a valid virtual
address to flush.
Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
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This functionality is needed to kmap_atomic() highmem pages that may
potentially have or are about to set up other mappings with
non-standard caching attributes.
Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
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attributes.
For x86 this affected highmem pages only, since they were always kmapped
cache-coherent, and this is fixed using kmap_atomic_prot().
For other architectures that may not modify the linear kernel map we
resort to vmap() for now, since kmap_atomic_prot() generally uses the
linear kernel map for lowmem pages. This of course comes with a
performance impact and should be optimized when possible.
Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
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The code was potentially dereferencig a NULL sync object pointer.
At the same time a sync object reference was potentially leaked.
Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
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If an rn50/r100/m6/m7 GPU has < 64MB RAM, i.e. 8/16/32, the
aperture used to calculate the MC_FB_LOCATION needs to be worked
out from the CONFIG_APER_SIZE register, and not the actual vram size.
TTM VRAM size was also being initialised wrong, use actual vram size
to initialise it.
Signed-off-by: Dave Airlie <airlied@redhat.com>
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Previously we were basically always setting the GTT and VRAM flags regardless of
what userspace requested.
Signed-off-by: Michel Dänzer <daenzer@vmware.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
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Otherwise if there's no GTT space we would fail the eviction, leading to
cascaded failure.
Signed-off-by: Michel Dänzer <daenzer@vmware.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
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This is done later in radeon_object_list_unvalidate(). Doing it twice triggers
a BUG in TTM, rendering X on KMS unusable until reboot.
Signed-off-by: Michel Dänzer <daenzer@vmware.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
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Fix bandwidth computation and crtc priority in memory controller
so that crtc memory request are fullfill in time to avoid display
artifact.
Signed-off-by: Jerome Glisse <jglisse@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
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This adds new set/get tiling interfaces where the pitch
and macro/micro tiling enables can be set. Along with
a flag to decide if this object should have a surface when mapped.
The only thing we need to allocate with a mapped surface should be
the frontbuffer. Note rotate scanout shouldn't require one, and
back/depth shouldn't either, though mesa needs some fixes.
It fixes the TTM interfaces along Thomas's suggestions, and I've tested
the surface stealing code with two X servers and not seen any lockdep issues.
I've stopped tiling the fbcon frontbuffer, as I don't see there being
any advantage other than testing, I've left the testing commands in there,
just flip the fb_tiled to true in radeon_fb.c
Open: Can we integrate endian swapping in with this?
Future features:
texture tiling - need to relocate texture registers TXOFFSET* with tiling info.
This also merges Michel's cleanup surfaces regs at init time patch
even though it makes sense on its own, this patch really relies on it.
Some PowerMac firmwares set up a tiling surface at the beginning of VRAM
which messes us up otherwise.
that patch is:
Signed-off-by: Michel Dänzer <daenzer@vmware.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
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Need to adjust CUR_OFFSET for yorigin
Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
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Allows us to hit dot clocks much closer, especially on
chips with non-27 Mhz reference clocks like most IGP chips.
This fixes most flickering and blanking problems with
non-exact dot clocks on these chips.
Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
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This is needed when using fractional feedback dividers on some IGP
chips.
Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
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RN50/ES1000 is a cut-down rv100 chip used in the server market.
The 3D engine on these is either not there or unverified so refuse
any attempt to configure registers on it.
Signed-off-by: Dave Airlie <airlied@redhat.com>
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Doing this like the DDX seems like the most sure fire way to avoid
having to reinvent it slowly and painfully. At the moment we keep
getting things wrong with aper vs vram, so we know the DDX does it right.
booted on PCI r100, PCIE rv370, IGP rs400.
Signed-off-by: Dave Airlie <airlied@redhat.com>
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This add support for using dma32 memory on gpus that really need it.
Currently IGPs are left without DMA32 but we might need to change
that unless we can fix rs690.
Signed-off-by: Dave Airlie <airlied@redhat.com>
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For now handle it via r/g/b offsets and disallow 16 bpp modes on big endian
machines.
Signed-off-by: Michel Dänzer <daenzer@vmware.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
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On powerpc, since we aren't using any hw swappers, this will
get flipped around by default in hw.
tested on a G5 + rv515.
Signed-off-by: Dave Airlie <airlied@redhat.com>
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If userspace sends a zero length IB, it really shouldn't have bothered
so EINVAL it.
Signed-off-by: Dave Airlie <airlied@redhat.com>
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Fix this to be correct like the DDX code, looks like a typo
on transfer to the kernel.
Signed-off-by: Dave Airlie <airlied@redhat.com>
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Noticed by Rafał Miłecki on dri-devel. On r6xx/r7xx hardware, laptop
panels can be driven by KLDSCP_LVTMA or UNIPHY.
Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
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The line mux for the connector in the bios tables
is used for enumerating drm connectors. Since
this laptop has a quirk where the same line much is
listed for both VGA and LVDS, the connectors get
combined. Setting the line mux on LVDS to an unused
value prevents both encoders from being combined into
the same connector. This should fix bko bug 13720.
Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
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A bug caused a new caching state to be selected on each buffer object
validation regardless of the current caching state.
Moreover, a caching state could be selected that wasn't supported by
the memory type.
Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
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Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
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Userspace sends us a special relocation type to sync video/exa
to vlines to avoid tearing, this deals with the relocation
in the kernel, it picks the correct crtc and avoids issues
where crtcs are disabled.
This version also parses the wait until to make sure it isn't
trying to do anything evil.
Signed-off-by: Dave Airlie <airlied@redhat.com>
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Normally we are free to place VRAM where we want in the GPUs
memory address space, however on IGP chips the VRAM is actual RAM,
and no special translation or aperture is used inside the GPU MC.
So when you move the VRAM aperture away from the TOM register,
you actually move it into main memory and can trash things quite badly.
This commit makes the code respect the TOM location for MC_FB_LOCATION.
Signed-off-by: Dave Airlie <airlied@redhat.com>
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The crtc and cursor offsets on the legacy chips are offset from
DISPLAY_BASE_ADDR. The code worked if display base addr was at 0,
but otherwise falls to pieces.
Signed-off-by: Dave Airlie <airlied@redhat.com>
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If there is a problem then this is hiding it, we shouldn't
ever need to flush the IB. Either the buffers are:
WB - caching just works.
WC - no need to do explicit flush, the MB + readback will do it
Signed-off-by: Dave Airlie <airlied@redhat.com>
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Unsigned long is incorrect for 64-bit resources on 32-bit hw.
Signed-off-by: Dave Airlie <airlied@redhat.com>
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1. rv370 can accept 40-bit addresses - also at 24-bit shift not 4 bits
2. rs480 table can be in 40-bit space. - 4 bit shift for top 8 bits
3. rs480 table entries can be in 40-bit space.
Signed-off-by: Dave Airlie <airlied@redhat.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/misc-2.6
* 'zero-length' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/misc-2.6:
Remove zero-length file drivers/char/vr41xx_giu.c
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Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
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