Merge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc
* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc:
powerpc: Update defconfigs for embedded 6xx/7xxx, 8xx, 8{3,5,6}xxx
powerpc/86xx: Update GE Fanuc sbc310 default configuration
powerpc/86xx: Update defconfig for GE Fanuc's PPC9A
cpm_uart: Don't use alloc_bootmem in cpm_uart_cpm2.c
powerpc/83xx: Fix PCI IO base address on MPC837xE-RDB boards
powerpc/85xx: Don't scan for TBI PHY addresses on MPC8569E-MDS boards
powerpc/85xx: Fix ethernet link detection on MPC8569E-MDS boards
powerpc/mm: Fix SMP issue with MMU context handling code
* git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-for-linus:
lguest and virtio: cleanup struct definitions to Linux style.
lguest: update commentry
lguest: fix comment style
virtio: refactor find_vqs
virtio: delete vq from list
virtio: fix memory leak on device removal
lguest: fix descriptor corruption in example launcher
lguest: dereferencing freed mem in add_eventfd()
kprobes: Use kernel_text_address() for checking probe address
Use kernel_text_address() for checking probe address instead of
__kernel_text_address(), because __kernel_text_address() returns true
for init functions even after relaseing those functions.
Rusty Russell [Thu, 30 Jul 2009 22:03:45 +0000 (16:03 -0600)]
lguest: update commentry
Every so often, after code shuffles, I need to go through and unbitrot
the Lguest Journey (see drivers/lguest/README). Since we now use RCU in
a simple form in one place I took the opportunity to expand that explanation.
Rusty Russell [Thu, 30 Jul 2009 22:03:45 +0000 (16:03 -0600)]
lguest: fix comment style
I don't really notice it (except to begrudge the extra vertical
space), but Ingo does. And he pointed out that one excuse of lguest
is as a teaching tool, it should set a good example.
This refactors find_vqs, making it more readable and robust, and fixing
two regressions from 2.6.30:
- double free_irq causing BUG_ON on device removal
- probe failure when vq can't be assigned to msi-x vector
(reported on old host kernels)
This makes delete vq the reverse of find vq.
This is required to make it possible to retry find_vqs
after a failure, otherwise the list gets corrupted.
Rusty Russell [Thu, 30 Jul 2009 22:03:43 +0000 (16:03 -0600)]
lguest: fix descriptor corruption in example launcher
1d589bb16b825b3a7b4edd34d997f1f1f953033d "Add serial number support
for virtio_blk, V4a" extended 'struct virtio_blk_config' to 536 bytes.
Lguest and S/390 both use an 8 bit value for the feature length, and
this change broke them (if the code is naive).
powerpc/86xx: Update defconfig for GE Fanuc's PPC9A
General update of defconfig including the following notable changes:
- Enable GPIO access via sysfs on GE Fanuc's PPC9A.
- Enable Highmem support.
- Support for PCMCIA based daughter card.
Anton Vorontsov [Wed, 1 Jul 2009 17:39:25 +0000 (21:39 +0400)]
powerpc/85xx: Don't scan for TBI PHY addresses on MPC8569E-MDS boards
Sometimes (e.g. when there are no UEMs attached to a board)
fsl_pq_mdio_find_free() fails to find a spare address for a TBI PHY,
this is because get_phy_id() returns bogus 0x0000ffff values
(0xffffffff is expected), and therefore mdio bus probing fails with
the following message:
fsl-pq_mdio: probe of e0082120.mdio failed with error -16
And obviously ethernet doesn't work after this.
This patch solves the problem by adding tbi-phy node into mdio node,
so that we won't scan for spare addresses, we'll just use a fixed one.
Anton Vorontsov [Wed, 24 Jun 2009 16:30:28 +0000 (20:30 +0400)]
powerpc/85xx: Fix ethernet link detection on MPC8569E-MDS boards
Linux isn't able to detect link changes on ethernet ports that were
used by U-Boot. This is because U-Boot wrongly clears interrupt
polarity bit (INTPOL, 0x400) in the extended status register (EXT_SR,
0x1b) of Marvell PHYs.
There is no easy way for PHY drivers to know IRQ line polarity (we
could extract it from the device tree and pass it to phydevs, but
that'll be quite a lot of work), so for now just reset the PHYs to
their default states.
Kumar Gala [Thu, 30 Jul 2009 04:04:25 +0000 (23:04 -0500)]
powerpc/mm: Fix SMP issue with MMU context handling code
In switch_mmu_context() if we call steal_context_smp() to get a context
to use we shouldn't fall through and than call steal_context_up(). Doing
so can be problematic in that the 'mm' that steal_context_up() ends up
using will not get marked dirty in the stale_map[] for other CPUs that
might have used that mm. Thus we could end up with stale TLB entries in
the other CPUs that can cause all kinda of havoc.
Merge branch 'i2c-fixes-rc4' of git://aeryn.fluff.org.uk/bjdooks/linux
* 'i2c-fixes-rc4' of git://aeryn.fluff.org.uk/bjdooks/linux:
i2c-omap: OMAP3430 Silicon Errata 1.153
i2c-omap: In case of a NACK|ARDY|AL return from the ISR
i2c-omap: Bug in reading the RXSTAT/TXSTAT values from the I2C_BUFFSTAT register
i2c-sh_mobile: change module_init() to subsys_initcall()
i2c: strncpy does not null terminate string
i2c-s3c2410: s3c24xx_i2c_init: don't clobber IICLC value
Joe Perches [Wed, 29 Jul 2009 22:04:28 +0000 (15:04 -0700)]
scripts/get_maintainer.pl: Add -f directory use
Don't require a specific file in a directory to be tested.
Also Arnd Bergmann pointed out that the MAINTAINERS pattern requirement
that directory patterns have a trailing slash was unnecessary and was
likely to be error prone. Removed that requirement.
.../linux/uio.h:37: error: expected `=', `,', `;', `asm' or `__attribute__' before `iov_length'
.../linux/uio.h:47: error: expected declaration specifiers or `...' before `size_t'
drivers/serial/atmel_serial.c: fix compile when CONFIG_SERIAL_ATMEL=Y and CONFIG_SERIAL_ATMEL_CONSOLE=N
When SERIAL_ATMEL_CONSOLE is disabled, ATMEL_CONSOLE_DEVICE is set to
NULL, and trying to access ATMEL_CONSOLE_DEVICE->flags in
atmel_serial_probe makes the compile fail. This fixes the issue by only
accessing it if CONFIG_SERIAL_ATMEL_CONSOLE is defined
Dave Hansen [Wed, 29 Jul 2009 22:04:18 +0000 (15:04 -0700)]
lib: flexible array implementation
Once a structure goes over PAGE_SIZE*2, we see occasional allocation
failures. Some people have chosen to switch over to things like vmalloc()
that will let them keep array-like access to such a large structures.
But, vmalloc() has plenty of downsides.
Here's an alternative. I think it's what Andrew was suggesting here:
http://lkml.org/lkml/2009/7/2/518
I call it a flexible array. It does all of its work in PAGE_SIZE bits, so
never does an order>0 allocation. The base level has
PAGE_SIZE-2*sizeof(int) bytes of storage for pointers to the second level.
So, with a 32-bit arch, you get about 4MB (4183112 bytes) of total
storage when the objects pack nicely into a page. It is half that on
64-bit because the pointers are twice the size. There's a table detailing
this in the code.
There are kerneldocs for the functions, but here's an
overview:
flex_array_alloc() - dynamically allocate a base structure
flex_array_free() - free the array and all of the
second-level pages
flex_array_free_parts() - free the second-level pages, but
not the base (for static bases)
flex_array_put() - copy into the array at the given index
flex_array_get() - copy out of the array at the given index
flex_array_prealloc() - preallocate the second-level pages
between the given indexes to
guarantee no allocs will occur at
put() time.
We could also potentially just pass the "element_size" into each of the
API functions instead of storing it internally. That would get us one
more base pointer on 32-bit.
I've been testing this by running it in userspace. The header and patch
that I've been using are here, as well as the little script I'm using to
generate the size table which goes in the kerneldocs.
Anton Vorontsov [Wed, 29 Jul 2009 22:04:16 +0000 (15:04 -0700)]
sdhci: get rid of "frequency too high" flood when using eSDHC
Since commit 8dfd0374be84793360db7fff2e635d2cd3bbcb21 ("MMC core: limit
minimum initialization frequency to 400kHz") MMC core checks for minimum
frequency, and that causes following messages flood when using eSDHC
controllers:
...
mmc0: Minimum clock frequency too high for identification mode
mmc0: Minimum clock frequency too high for identification mode
...
The warnings are legitimate, since if we'd use 133 MHz clocks for standard
SDHCI controllers, we'd not able to scale frequency down to 400 kHz.
But eSDHC controllers have a non-standard SD clock management, so we can
divide clock by 256 * 16, not just 256.
This patch introduces get_min_clock() callback for sdhci core and
implements it for sdhci-of driver, and thus fixes the issue.
commit d6580a9f15238b87e618310c862231ae3f352d2d ("kexec: sysrq: simplify
sysrq-c handler") changed the behavior of sysrq-c to unconditional
dereference of NULL pointer. So in cases with CONFIG_KEXEC, where
crash_kexec() was directly called from sysrq-c before, now it can be said
that a step of "real oops" was inserted before starting kdump.
However, in contrast to oops via SysRq-c from keyboard which results in
panic due to in_interrupt(), oops via "echo c > /proc/sysrq-trigger" will
not become panic unless panic_on_oops=1. It means that even if dump is
properly configured to be taken on panic, the sysrq-c from proc interface
might not start crashdump while the sysrq-c from keyboard can start
crashdump. This confuses traditional users of kdump, i.e. people who
expect sysrq-c to do common behavior in both of the keyboard and proc
interface.
This patch brings the keyboard and proc interface behavior of sysrq-c in
line, by forcing panic_on_oops=1 before oops in sysrq-c handler.
And some updates in documentation are included, to clarify that there is
no longer dependency with CONFIG_KEXEC, and that now the system can just
crash by sysrq-c if no dump mechanism is configured.
This file makes use of various macros defined in files like asm/current.h
or asm-generic/resource.h. All these files can be included via sched.h.
The building of the !MMU ARM kernel (with additional patches) fails
without this change.
net-dccp: suppress warning about large allocations from DCCP
The DCCP protocol tries to allocate some large hash tables during
initialisation using the largest size possible. This can be larger than
what the page allocator can provide so it prints a warning. However, the
caller is able to handle the situation so this patch suppresses the
warning.
profile: suppress warning about large allocations when profile=1 is specified
When profile= is used, a large buffer is allocated early at boot. This
can be larger than what the page allocator can provide so it prints a
warning. However, the caller is able to handle the situation so this
patch suppresses the warning.
page-allocator: allow too high-order warning messages to be suppressed with __GFP_NOWARN
The page allocator warns once when an order >= MAX_ORDER is specified.
This is to catch callers of the allocator that are always falling back to
their worst-case when it was not expected. However, there are cases where
the caller is behaving correctly but cannot suppress the warning. This
patch allows the warning to be suppressed by the callers by specifying
__GFP_NOWARN.
After commit ec64f51545fffbc4cb968f0cea56341a4b07e85a ("cgroup: fix
frequent -EBUSY at rmdir"), cgroup's rmdir (especially against memcg)
doesn't return -EBUSY by temporary ref counts. That commit expects all
refs after pre_destroy() is temporary but...it wasn't. Then, rmdir can
wait permanently. This patch tries to fix that and change followings.
- set CGRP_WAIT_ON_RMDIR flag before pre_destroy().
- clear CGRP_WAIT_ON_RMDIR flag when the subsys finds racy case.
if there are sleeping ones, wakes them up.
- rmdir() sleeps only when CGRP_WAIT_ON_RMDIR flag is set.
eeprom/at25: bugfix "not ready" timeout after write
Under certain circumstances msleep(1) within the loop, which waits for the
EEPROM to be finished, might take longer than the timeout. On the next
loop the status register might now return to be ready and therefore the
loop finishes. The following check now tests if a timeout occurred and if
so returns an error although the device reported it was ready.
This fix replaces testing the occurrence of the timeout by testing the
"not ready" bit in the status register.
We cache a pid array for all threads that are opening the same "tasks"
file, but the pids in the array are always from the namespace of the
last process that opened the file, so all other threads will read pids
from that namespace instead of their own namespaces.
To fix it, we maintain a list of pid arrays, which is keyed by pid_ns.
The list will be of length 1 at most time.
Roland Dreier [Wed, 29 Jul 2009 22:04:02 +0000 (15:04 -0700)]
lib: export generic atomic64_t functions
The generic atomic64_t implementation in lib/ did not export the functions
it defined, which means that modules that use atomic64_t would not link on
platforms (such as 32-bit powerpc). For example, trying to build a kernel
with CONFIG_NET_RDS on such a platform would fail with:
Fix this by exporting the atomic64_t functions to modules. (I export the
entire API even if it's not all currently used by in-tree modules to avoid
having to continue fixing this in dribs and drabs)
This is because hugetlb_unreserve_pages() is unconditionally removing
blocks_per_huge_page(h) on each call rather than using the freed amount.
If there were 0 blocks, it goes negative, resulting in the above.
rtc: mark if rtc-cmos drivers were successfully registered
rtc-cmos has two drivers, one PNP and one platform. When PNP has not
succeeded probing, platform is registered. However, it tries to
unregister both drivers unconditionally, instead of only unregistering
those that were successfully registered. This causes runtime warnings to
be emitted from the driver core code.
Fix this with a boolean variable for each driver indicating whether
registering was successful.
Eero Nurkkala [Wed, 29 Jul 2009 22:02:12 +0000 (15:02 -0700)]
spi: omap2_mcspi rxdma bugfix
When data is read through DMA, the last element must be read separately
through the RX register. It cannot be transferred by the DMA. For
further details see e.g. OMAP35x TRM (table 19-16).
Without the fix the driver causes extra clocks to be clocked to the bus
after DMA RX operations. This can cause interesting behaviour with some
devices.
Fixed off-by-one bug in loop indexes - some elements beyond windows' array
were accessed, which might result in memory access violations when
removing/suspending the device.
kexec: fix omitting offset in extended crashkernel syntax
Setting
"crashkernel=512M-2G:64M,2G-:128M"
does not work but it turns to work if it has a trailing-whitespace,
like
"crashkernel=512M-2G:64M,2G-:128M ".
It was because of a bug in the parser, running over the cmdline.
David Rientjes [Wed, 29 Jul 2009 22:02:06 +0000 (15:02 -0700)]
mm: avoid endless looping for oom killed tasks
If a task is oom killed and still cannot find memory when trying with
no watermarks, it's better to fail the allocation attempt than to loop
endlessly. Direct reclaim has already failed and the oom killer will
be a no-op since current has yet to die, so there is no other
alternative for allocations that are not __GFP_NOFAIL.
Narayanan reports "The regression is around 15%. There is no disk controller
as our setup is based on Samsung OneNAND used as a memory mapped device on a
OMAP2430 based board."
The page allocator tries to preserve contiguous PFN ordering when returning
pages such that repeated callers to the allocator have a strong chance of
getting physically contiguous pages, particularly when external fragmentation
is low. However, of the bulk of the allocations have __GFP_COLD set as they
are due to aio_read() for example, then the PFNs are in reverse PFN order.
This can cause performance degration when used with IO controllers that could
have merged the requests.
This patch attempts to preserve the contiguous ordering of PFNs for users of
__GFP_COLD.
When an XRDY/XDR is hit, wait for XUDF before writing data to DATA_REG.
Otherwise some data bytes can be lost while transferring them from the
memory to the I2C interface.
Do a Busy-wait for XUDF, before writing data to DATA_REG. While waiting
if there is NACK | AL, set the appropriate error flags, ack the pending
interrupts and return from the ISR.
Magnus Damm [Wed, 22 Jul 2009 14:58:39 +0000 (23:58 +0900)]
i2c-sh_mobile: change module_init() to subsys_initcall()
Convert the i2c-sh_mobile i2c bus driver to use
subsys_initcall() instead of module_init().
This change makes the driver register a bit earlier which
together with earlier platform data moves the time for probe().
The earlier probe() makes it possible to use i2c_get_adapter()
and i2c_transfer() from device_initcall().
The same strategy is used by other i2c bus drivers such as
i2c-pxa.c and i2c-s3c2410.c.
Peter Korsgaard [Fri, 17 Jul 2009 20:33:37 +0000 (22:33 +0200)]
i2c-s3c2410: s3c24xx_i2c_init: don't clobber IICLC value
s3c24xx_i2c_init() was overwriting the IICLC value set just above in
s3c24xx_i2c_clockrate() with zero, effectively disabling the platform
line control setting.
kmemleak: Protect the seq start/next/stop sequence by rcu_read_lock()
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().
Merge branch 'drm-radeon-kms' of 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.
...
Merge branch 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev
* 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev:
libata: accept late unlocking of HPA
libata: Updates and fixes for pata_at91 driver
ata_piix: Add new short cable ID
ata_piix: Add new laptop short cable IDs
ahci: add device IDs for Ibex Peak ahci controllers
libata: remove superfluous NULL pointer checks
libata: add missing NULL pointer check to ata_eh_reset()
pata_pcmcia: add CNF-CDROM-ID
* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core-2.6:
driver core: documentation: make it clear that sysfs is optional
driver core: sysdev: do not send KOBJ_ADD uevent if kobject_init_and_add fails
Dynamic debug: fix typo: -/->
driver core: firmware_class:fix memory leak of page pointers array
sysfs: fix hardlink count on device_move
* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging-2.6:
staging: udlfb: Add vmalloc.h include
staging: remove aten2011 driver
Staging: android: lowmemorykiller.c: fix it for "oom: move oom_adj value from task_struct to mm_struct"
Staging: serqt_usb2: fix memory leak in error case
Staging: serqt_usb2: add missing calls to tty_kref_put()
* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6: (34 commits)
USB: xhci: Stall handling bug fixes.
USB: xhci: Support for 64-byte contexts
USB: xhci: Always align output device contexts to 64 bytes.
USB: xhci: Scratchpad buffer allocation
USB: Fix parsing of SuperSpeed Endpoint Companion descriptor.
USB: xhci: Fail gracefully if there's no SS ep companion descriptor.
USB: xhci: Handle babble errors on transfers.
USB: xhci: Setup HW retries correctly.
USB: xhci: Check if the host controller died in IRQ handler.
USB: xhci: Don't oops if the host doesn't halt.
USB: xhci: Make debugging more verbose.
USB: xhci: Correct Event Handler Busy flag usage.
USB: xhci: Handle short control packets correctly.
USB: xhci: Represent 64-bit addresses with one u64.
USB: xhci: Use GFP_ATOMIC while holding spinlocks.
USB: xhci: Deal with stalled endpoints.
USB: xhci: Set TD size in transfer TRB.
USB: xhci: fix less- and greater than confusion
USB: usbtest: no need for USB_DEVICEFS
USB: musb: fix CONFIGDATA register read issue
...
We really don't want to mark the pty as a low-latency device, because as
Alan points out, the ->write method can be called from an IRQ (ppp?),
and that means we can't use ->low_latency=1 as we take mutexes in the
low_latency case.
So rather than using low_latency to force the written data to be pushed
to the ldisc handling at 'write()' time, just make the reader side (or
the poll function) do the flush when it checks whether there is data to
be had.
This also fixes the problem with lost data in an emacs compile buffer
(bugzilla 13815), and we can thus revert the low_latency pty hack
(commit 3a54297478e6578f96fd54bf4daa1751130aca86: "pty: quickfix for the
pty ENXIO timing problems").
Signed-off-by: OGAWA Hirofumi <[email protected]> Tested-by: Aneesh Kumar K.V <[email protected]>
[ Modified to do the tty_flush_to_ldisc() inside input_available_p() so
that it triggers for both read and poll() - Linus] Signed-off-by: Linus Torvalds <[email protected]>
Alan Jenkins [Wed, 29 Jul 2009 19:07:55 +0000 (21:07 +0200)]
PM / Hibernate: Replace bdget call with simple atomic_inc of i_count
Create bdgrab(). This function copies an existing reference to a
block_device. It is safe to call from any context.
Hibernation code wishes to copy a reference to the active swap device.
Right now it calls bdget() under a spinlock, but this is wrong because
bdget() can sleep. It doesn't need a full bdget() because we already
hold a reference to active swap devices (and the spinlock protects
against swapoff).
PM / ACPI: HP G7000 Notebook needs a SCI_EN resume quirk
This fixes regression (battery "vanishing" on resume) introduced by
commit d0c71fe7ebc180f1b7bc7da1d39a07fc19eec768 ("ACPI Suspend: Enable
ACPI during resume if SCI_EN is not set") and also the issue with
the "screaming" IRQ 9.
Thomas Hellstrom [Fri, 24 Jul 2009 07:57:33 +0000 (09:57 +0200)]
x86: Export kmap_atomic_prot() needed for TTM.
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.
Thomas Hellstrom [Fri, 24 Jul 2009 07:57:34 +0000 (09:57 +0200)]
drm/ttm: Fix ttm in-kernel copying of pages with non-standard caching 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.
Dave Airlie [Tue, 21 Jul 2009 10:39:30 +0000 (20:39 +1000)]
drm/radeon/kms: vram sizing on certain r100 chips needs workaround.
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.
Dave Airlie [Tue, 23 Jun 2009 23:48:08 +0000 (09:48 +1000)]
drm/radeon/kms: add initial colortiling support.
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 <[email protected]> Signed-off-by: Dave Airlie <[email protected]>
projects / linux.git / log