10 Aug, 2016
1 commit
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Recent versions of gcc say this:
include/drm/i915_drm.h:96:34: warning: result of ‘65535 << 20’
requires 37 bits to represent, but ‘int’ only has 32 bits
[-Wshift-overflow=]Reported-by: David Binderman
Signed-off-by: Dave Gordon
Cc: Dave Airlie
Reviewed-by: Chris Wilson
Signed-off-by: Daniel Vetter
Link: http://patchwork.freedesktop.org/patch/msgid/1470764110-23855-1-git-send-email-david.s.gordon@intel.com
25 Apr, 2016
1 commit
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Move the better constructs/comments from i915_gem_stolen.c to
early-quirks.c and increase readability in preparation of only
having one set of functions.- intel_stolen_base -> gen3_stolen_base
- use phys_addr_t instead of u32 for address for future proofingv2:
- Print the invalid register values (Chris)
(Omitting the register prefix as it's visible from backtrace.)Cc: Chris Wilson
Cc: Mika Kuoppala
Cc: Ville Syrjälä
Cc: Tvrtko Ursulin
Acked-by: Tvrtko Ursulin
Reviewed-by: Chris Wilson
Signed-off-by: Joonas Lahtinen
09 Feb, 2014
1 commit
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There isn't an explicit stolen memory base register on gen2.
Some old comment in the i915 code suggests we should get it via
max_low_pfn_mapped, but that's clearly a bad idea on my MGM.The e820 map in said machine looks like this:
BIOS-e820: [mem 0x0000000000000000-0x000000000009f7ff] usable
BIOS-e820: [mem 0x000000000009f800-0x000000000009ffff] reserved
BIOS-e820: [mem 0x00000000000ce000-0x00000000000cffff] reserved
BIOS-e820: [mem 0x00000000000dc000-0x00000000000fffff] reserved
BIOS-e820: [mem 0x0000000000100000-0x000000001f6effff] usable
BIOS-e820: [mem 0x000000001f6f0000-0x000000001f6f7fff] ACPI data
BIOS-e820: [mem 0x000000001f6f8000-0x000000001f6fffff] ACPI NVS
BIOS-e820: [mem 0x000000001f700000-0x000000001fffffff] reserved
BIOS-e820: [mem 0x00000000fec10000-0x00000000fec1ffff] reserved
BIOS-e820: [mem 0x00000000ffb00000-0x00000000ffbfffff] reserved
BIOS-e820: [mem 0x00000000fff00000-0x00000000ffffffff] reservedThat makes max_low_pfn_mapped = 1f6f0000, so assuming our stolen
memory would start there would place it on top of some ACPI
memory regions. So not a good idea as already stated.The 9MB region after the ACPI regions at 0x1f700000 however
looks promising given that the macine reports the stolen memory
size to be 8MB. Looking at the PGTBL_CTL register, the GTT
entries are at offset 0x1fee00000, and given that the GTT
entries occupy 128KB, it looks like the stolen memory could
start at 0x1f700000 and the GTT entries would occupy the last
128KB of the stolen memory.After some more digging through chipset documentation, I've
determined the BIOS first allocates space for something called
TSEG (something to do with SMM) from the top of memory, and then
it allocates the graphics stolen memory below that. Accordind to
the chipset documentation TSEG has a fixed size of 1MB on 855.
So that explains the top 1MB in the e820 region. And it also
confirms that the GTT entries are in fact at the end of the the
stolen memory region.Derive the stolen memory base address on gen2 the same as the
BIOS does (TOM-TSEG_SIZE-stolen_size). There are a few
differences between the registers on various gen2 chipsets, so a
few different codepaths are required.865G is again bit more special since it seems to support enough
memory to hit 4GB address space issues. This means the PCI
allocations will also affect the location of the stolen memory.
Fortunately there appears to be the TOUD register which may give
us the correct answer directly. But the chipset docs are a bit
unclear, so I'm not 100% sure that the graphics stolen memory is
always the last thing the BIOS steals. Someone would need to
verify it on a real system.I tested this on the my 830 and 855 machines, and so far
everything looks peachy.Signed-off-by: Ville Syrjälä
Cc: Bjorn Helgaas
Link: http://lkml.kernel.org/r/1391628540-23072-3-git-send-email-ville.syrjala@linux.intel.com
Signed-off-by: Ingo Molnar
09 Nov, 2013
1 commit
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All the BARs have the ability to grow.
v2: Pulled out the simulator workaround to a separate patch.
Rebased.v3: Rebase onto latest vlv patches from Jesse.
v4: Rebased on top of the early stolen quirk patch from Jesse.
v5: Use the new macro names.
s/INTEL_BDW_PCI_IDS_D/INTEL_BDW_D_IDS
s/INTEL_BDW_PCI_IDS_M/INTEL_BDW_M_IDS
It's Jesse's fault for not following the convention I originally set.Cc: Ingo Molnar
Cc: H. Peter Anvin
Cc: Jesse Barnes
Signed-off-by: Ben Widawsky
Signed-off-by: Daniel Vetter
04 Sep, 2013
2 commits
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Systems with Intel graphics controllers set aside memory exclusively for
gfx driver use. This memory is not always marked in the E820 as
reserved or as RAM, and so is subject to overlap from E820 manipulation
later in the boot process. On some systems, MMIO space is allocated on
top, despite the efforts of the "RAM buffer" approach, which simply
rounds memory boundaries up to 64M to try to catch space that may decode
as RAM and so is not suitable for MMIO.v2: use read_pci_config for 32 bit reads instead of adding a new one
(Chris)
add gen6 stolen size function (Chris)
v3: use a function pointer (Chris)
drop gen2 bits (Daniel)
v4: call e820_sanitize_map after adding the region
v5: fixup comments (Peter)
simplify loop (Chris)Acked-by: Ingo Molnar
Signed-off-by: Jesse Barnes
Acked-by: H. Peter Anvin
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=66726
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=66844
Signed-off-by: Daniel Vetter -
For use by userspace (at some point in the future) and other kernel code.
v2: move PCI IDs to uabi (Chris)
move PCI IDs to drm/ (Dave)
v3: fixup Quanta detection - needs to come first (Daniel)
v4: fix up PCI match structure init for easier use by userspace (Chris)Signed-off-by: Jesse Barnes
Signed-off-by: Daniel Vetter
05 Oct, 2012
1 commit
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Signed-off-by: David Howells
Acked-by: Arnd Bergmann
Acked-by: Thomas Gleixner
Acked-by: Michael Kerrisk
Acked-by: Paul E. McKenney
Acked-by: Dave Jones
04 Oct, 2012
1 commit
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Pull drm merge (part 1) from Dave Airlie:
"So first of all my tree and uapi stuff has a conflict mess, its my
fault as the nouveau stuff didn't hit -next as were trying to rebase
regressions out of it before we merged.Highlights:
- SH mobile modesetting driver and associated helpers
- some DRM core documentation
- i915 modesetting rework, haswell hdmi, haswell and vlv fixes, write
combined pte writing, ilk rc6 support,
- nouveau: major driver rework into a hw core driver, makes features
like SLI a lot saner to implement,
- psb: add eDP/DP support for Cedarview
- radeon: 2 layer page tables, async VM pte updates, better PLL
selection for > 2 screens, better ACPI interactionsThe rest is general grab bag of fixes.
So why part 1? well I have the exynos pull req which came in a bit
late but was waiting for me to do something they shouldn't have and it
looks fairly safe, and David Howells has some more header cleanups
he'd like me to pull, that seem like a good idea, but I'd like to get
this merge out of the way so -next dosen't get blocked."Tons of conflicts mostly due to silly include line changes, but mostly
mindless. A few other small semantic conflicts too, noted from Dave's
pre-merged branch.* 'drm-next' of git://people.freedesktop.org/~airlied/linux: (447 commits)
drm/nv98/crypt: fix fuc build with latest envyas
drm/nouveau/devinit: fixup various issues with subdev ctor/init ordering
drm/nv41/vm: fix and enable use of "real" pciegart
drm/nv44/vm: fix and enable use of "real" pciegart
drm/nv04/dmaobj: fixup vm target handling in preparation for nv4x pcie
drm/nouveau: store supported dma mask in vmmgr
drm/nvc0/ibus: initial implementation of subdev
drm/nouveau/therm: add support for fan-control modes
drm/nouveau/hwmon: rename pwm0* to pmw1* to follow hwmon's rules
drm/nouveau/therm: calculate the pwm divisor on nv50+
drm/nouveau/fan: rewrite the fan tachometer driver to get more precision, faster
drm/nouveau/therm: move thermal-related functions to the therm subdev
drm/nouveau/bios: parse the pwm divisor from the perf table
drm/nouveau/therm: use the EXTDEV table to detect i2c monitoring devices
drm/nouveau/therm: rework thermal table parsing
drm/nouveau/gpio: expose the PWM/TOGGLE parameter found in the gpio vbios table
drm/nouveau: fix pm initialization order
drm/nouveau/bios: check that fixed tvdac gpio data is valid before using it
drm/nouveau: log channel debug/error messages from client object rather than drm client
drm/nouveau: have drm debugging macros build on top of core macros
...
03 Oct, 2012
1 commit
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Convert #include "..." to #include in kernel system headers.
Signed-off-by: David Howells
Acked-by: Arnd Bergmann
Acked-by: Thomas Gleixner
Acked-by: Paul E. McKenney
Acked-by: Dave Jones
26 Sep, 2012
1 commit
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Signed-off-by: Ben Widawsky
Signed-off-by: Daniel Vetter
20 Sep, 2012
1 commit
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There are internal patches for a feature which require a parameter to
query whether support exists . These patches cannot be made external
yet. In order to keep existing tests and userspace happy and free from
conflicts, reserve a number for it.Signed-off-by: Ben Widawsky
Signed-off-by: Daniel Vetter
17 Aug, 2012
1 commit
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In order for udl vmap to work properly, we need to push the object
into the CPU domain before we start copying the data to the USB device.This along with the udl change avoids userspace explicit mapping to
be used.v2: add a flag for userspace to query to know if Intel kernel driver can
deal with the vmap flushing properly. In theory udl would need a flag also,
but I intend to push the patches very close to each other and other drivers
should do the right thing from the start.I've added a test to my intel-gpu-tools prime branch, however testing
this is a bit messy since the only way to get udl to vmap is to rendering
something. I've tested this with real code as well to make sure it works.Signed-off-by: Dave Airlie
[danvet: resolved conflict, which required reallocating the PARAM
number to 21.]
Signed-off-by: Daniel Vetter
08 Aug, 2012
1 commit
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Userspace tries to estimate the cost of ring switching based on whether
the GPU and GEM supports semaphores. (If we have multiple rings and no
semaphores, userspace assumes that the cost of switching rings between
batches is exorbitant and will endeavour to keep the next batch on the
active ring - as a coarse approximation to tracking both destination and
source surfaces.) Currently userspace has to guess whether semaphores
exist based on the chipset generation and the module parameter,
i915.semaphores. This is a crude and inaccurate guess as the defaults
internally depend upon other chipset features being enabled or disabled,
nor does it extend well into the future. By exporting a HAS_SEMAPHORES
parameter, we can easily query the driver and obtain an accurate answer.Signed-off-by: Chris Wilson
Signed-off-by: Daniel Vetter
26 Jul, 2012
4 commits
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By selecting the cache level (essentially whether or not the CPU snoops
any updates to the bo, and on more recent machines whether it resides
inside the CPU's last-level-cache) a userspace driver is able to then
manage all of its memory within buffer objects, if it so desires. This
enables the userspace driver to accelerate uploads and more importantly
downloads from the GPU and to able to mix CPU and GPU rendering/activity
efficiently.Signed-off-by: Chris Wilson
[danvet: Added code comment about where we plan to stuff platform
specific cacheing control bits in the ioctl struct.]
Signed-off-by: Daniel Vetter -
The intention is to help select which engine to use for copies with
interoperating clients - such as a GL client making a request to the X
server to perform a SwapBuffers, which may require copying from the
active GL back buffer to the X front buffer.We choose to report a mask of the active rings to future proof the
interface against any changes which may allow for the object to reside
upon multiple rings.Signed-off-by: Chris Wilson
[danvet: bikeshed away the write ring mask and add the explanation
Chris sent in a follow-up mail why we decided to use masks.]
Signed-off-by: Daniel Vetter -
The interface's immediate purpose is to do synchronous timestamp queries
as required by GL_TIMESTAMP. The GPU has a register for reading the
timestamp but because that would normally require root access through
libpciaccess, the IOCTL can provide this service instead.Currently the implementation whitelists only the render ring timestamp
register, because that is the only thing we need to expose at this time.v2: make size implicit based on the register offset
Add a generation checkReviewed-by: Eric Anholt
Cc: Jacek Lawrynowicz
Signed-off-by: Ben Widawsky
[danvet: fixup the ioctl numerb:]
Signed-off-by: Daniel Vetter -
I'm planing to merge this next week for 3.7, but I'd like to avoid
stupid conflicts with the exsting userspace when merging the new
reg_read ioctl (which doesn't have userspace yet, but this caching
interface has).Header extracted from Chris Wilson's patch, but fix up the copy&pasted
comment in the interface struct.Signed-off-by: Chris Wilson
Signed-off-by: Daniel Vetter
14 Jun, 2012
2 commits
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Use the rsvd1 field in execbuf2 to specify the context ID associated
with the workload. This will allow the driver to do the proper context
switch when/if needed.v2: Add checks for context switches on rings not supporting contexts.
Before the code would silently ignore such requests.Signed-off-by: Ben Widawsky
-
Add the interfaces to allow user space to create and destroy contexts.
Contexts are destroyed automatically if the file descriptor for the dri
device is closed.Following convention as usual here causes checkpatch warnings.
v2: with is_initialized, no longer need to init at create
drop the context switch on create (daniel)v3: Use interruptible lock (Chris)
return -ENODEV in !GEM case (Chris)Signed-off-by: Ben Widawsky
06 Jun, 2012
2 commits
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Signed-off-by: Ben Widawsky
Reviewed-by: Chris Wilson
Signed-off-by: Daniel Vetter -
Change the ns_timeout parameter of the wait ioctl to a signed value.
Doing this allows the kernel to provide an infinite wait when a timeout
of less than 0 is provided. This mimics select/poll.Initially the parameter was meant to match up with the GL spec 1:1, but
after being made aware of how much 2^64 - 1 nanoseconds actually is, I
do not think anyone will ever notice the loss of 1 bit.The infinite timeout on waiting is similar to the existing i915
userspace interface with the exception that struct_mutex is dropped
while doing the wait in this ioctl.Cc: Chris Wilson
Signed-off-by: Ben Widawsky
Reviewed-by: Chris Wilson
Signed-off-by: Daniel Vetter
25 May, 2012
1 commit
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This helps implement GL_ARB_sync but stops short of allowing full blown
sync objects. Finally we can use the new timed seqno waiting function
to allow userspace to wait on a buffer object with a timeout. This
implements that interface.The IOCTL will take as input a buffer object handle, and a timeout in
nanoseconds (flags is currently optional but will likely be used for
permutations of flush operations). Users may specify 0 nanoseconds to
instantly check.The wait ioctl with a timeout of 0 reimplements the busy ioctl. With any
non-zero timeout parameter the wait ioctl will wait for the given number
of nanoseconds on an object becoming unbusy. Since the wait itself does
so holding struct_mutex the object may become re-busied before this
completes. A similar but shorter race condition exists in the busy
ioctl.v2: ETIME/ERESTARTSYS instead of changing to EBUSY, and EGAIN (Chris)
Flush the object from the gpu write domain (Chris + Daniel)
Fix leaked refcount in good case (Chris)
Naturally align ioctl struct (Chris)v3: Drop lock after getting seqno to avoid ugly dance (Chris)
v4: check for 0 timeout after olr check to allow polling (Chris)
v5: Updated the comment. (Chris)
v6: Return -ETIME instead of -EBUSY when timeout_ns is 0 (Daniel)
Fix the commit message comment to be less ugly (Ben)
Add a warning to check the return timespec (Ben)v7: Use DRM_AUTH for the ioctl. (Eugeni)
Signed-off-by: Ben Widawsky
Signed-off-by: Daniel Vetter
21 Mar, 2012
1 commit
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On Sanybridge a few MI read/write commands only work when ppgtt is
enabled. Userspace therefore needs to be able to check whether ppgtt
is enabled. For added hilarity, you need to reset the "use global GTT"
bit on snb when ppgtt is enabled, otherwise it won't work. Despite
what bspec says about automatically using ppgtt ...Luckily PIPE_CONTROL (the only write cmd current userspace uses) is
not affected by all this, as tested by tests/gem_pipe_control_store_loop.Reviewed-and-tested-by: Chris Wilson
Signed-Off-by: Daniel Vetter
18 Jan, 2012
1 commit
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LLC is not SNB/IVB-specific, so we should check for it in a more generic
way.Reviewed-by: Chris Wilson
Reviewed-by: Eric Anholt
Reviewed-by: Kenneth Graunke
Signed-off-by: Eugeni Dodonov
Signed-off-by: Daniel Vetter
04 Jan, 2012
2 commits
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These registers are automatically incremented by the hardware during
transform feedback to track where the next streamed vertex output
should go. Unlike the previous generation, which had a packet for
setting the corresponding registers to a defined value, gen7 only has
MI_LOAD_REGISTER_IMM to do so. That's a secure packet (since it loads
an arbitrary register), so we need to do it from the kernel, and it
needs to be settable atomically with the batchbuffer execution so that
two clients doing transform feedback don't stomp on each others'
state.Instead of building a more complicated interface involcing setting the
registers to a specific value, just set them to 0 when asked and
userland can tweak its pointers accordingly.Signed-off-by: Eric Anholt
Reviewed-by: Eugeni Dodonov
Reviewed-by: Kenneth Graunke
Signed-off-by: Keith Packard -
Add new ioctls for getting and setting the current destination color
key. This allows for simple overlay display control by matching a color
key value in the primary plane before blending the overlay on top.v2: remove unnecessary mutex acquire/release around reg accesses
v3: add support for full color key management
v4: fix copy & paste bug in snb_get_colorkey
don't bother checking min/max values against docs as the docs are likely
wrong (how could we handle 10bpc surface formats?)Reviewed-by: Daniel Vetter
Signed-off-by: Jesse Barnes
23 Jul, 2011
1 commit
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Because of a typo, calling ioctl with DRM_IOCTL_I915_OVERLAY_PUT_IMAGE
is broken if the macro is used directly. When using libdrm the bug is
not hit, since libdrm handles the ioctl encoding internally.The typo also leads to the .cmd and .cmd_drv fields of the drm_ioctl
structure for DRM_I915_OVERLAY_PUT_IMAGE having inconsistent content.Signed-off-by: Ole Henrik Jahren
Acked-by: Daniel Vetter
Cc: stable@kernel.org
Signed-off-by: Keith Packard
02 Mar, 2011
1 commit
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Userspace has a legitimate requirement to use a delta that points to
outside of the target bo, and so we need to enable this. (As this is an
abi break, albeit a relaxation of the current restrictions, mark the change
with a new flag.)Signed-off-by: Chris Wilson
20 Dec, 2010
1 commit
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The relative-to-general state default is useless as it means having to
rewrite the streaming kernels for each batch. Relative-to-surface is
more useful, as that stream usually needs to be rewritten for each
batch. And absolute addressing mode, vital if you start streaming
state, is also only available by adjusting the register...Signed-off-by: Chris Wilson
05 Dec, 2010
1 commit
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Otherwise we can't really fix the abi-braindeadness of forcing
libva to manually wait for rendering when switching rings. Which
in turn makes implementing hw semaphores a pointless exercise
(at least for ironlake).[Also added the relaxed fencing param to explain the jump in
numbering - relaxed fencing is in -next.]Signed-off-by: Daniel Vetter
Signed-off-by: Chris Wilson
22 Oct, 2010
1 commit
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Based on an original patch by Zhenyu Wang, this initializes the BLT ring for
SandyBridge and enables support for user execbuffers.Cc: Zhenyu Wang
Signed-off-by: Chris Wilson
24 Aug, 2010
1 commit
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* 'drm-core-next' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6: (33 commits)
drm/radeon/kms: fix typo in radeon_compute_pll_gain
drm/radeon/kms: try to detect tv vs monitor for underscan
drm/radeon/kms: fix sideport detection on newer rs880 boards
drm/radeon: fix passing wrong type to gem object create.
drm/radeon/kms: set encoder type to DVI for HDMI on evergreen
drm/radeon/kms: add back missing break in info ioctl
drm/radeon/kms: don't enable MSIs on AGP boards
drm/radeon/kms: fix agp mode setup on cards that use pcie bridges
drm: move dereference below check
drm: fix end of loop test
drm/radeon/kms: rework radeon_dp_detect() logic
drm/radeon/kms: add missing asic callback assignment for evergreen
drm/radeon/kms/DCE3+: switch pads to ddc mode when going i2c
drm/radeon/kms/pm: bail early if nothing's changing
drm/radeon/kms/atom: clean up dig atom handling
drm/radeon/kms: DCE3/4 transmitter fixes
drm/radeon/kms: rework encoder handling
drm/radeon/kms: DCE3/4 AdjustPixelPll updates
drm/radeon: Fix stack data leak
drm/radeon/kms: fix GTT/VRAM overlapping test
...
17 Aug, 2010
1 commit
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With the current screwed but its ABI, ioctls for the drm, Linus pointed out that we could allow userspace to specify the allocation size, but we pass it to the driver which then uses it blindly to store a struct. Now if userspace specifies the allocation size as smaller than the driver needs, the driver can possibly overwrite memory.
This patch restructures the driver ioctls so we store the structure size we are expecting, and make sure we allocate at least that size. The copy from/to userspace are still restricted to the size the user specifies, this allows ioctl structs to grow on both sides of the equation.
Up until now we didn't really use the DRM_IOCTL defines in the kernel, so this cleans them up and adds them for nouveau.
v2:
fix nouveau pushbuf arg (thanks to Ben for pointing it out)Reported-by: Linus Torvalds
Signed-off-by: Dave Airlie
03 Aug, 2010
1 commit
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Intel Core i3/5 platforms with integrated graphics support both CPU and
GPU turbo mode. CPU turbo mode is opportunistic: the CPU will use any
available power to increase core frequencies if thermal headroom is
available. The GPU side is more manual however; the graphics driver
must monitor GPU power and temperature and coordinate with a core
thermal driver to take advantage of available thermal and power headroom
in the package.The intelligent power sharing (IPS) driver is intended to coordinate
this activity by monitoring MCP (multi-chip package) temperature and
power, allowing the CPU and/or GPU to increase their power consumption,
and thus performance, when possible. The goal is to maximize
performance within a given platform's TDP (thermal design point).Signed-off-by: Jesse Barnes
Signed-off-by: Matthew Garrett
02 Jun, 2010
1 commit
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This will let userland only try to use the new media decode
functionality when the appropriate kernel is present.Signed-off-by: Zou Nan hai
Signed-off-by: Eric Anholt
27 May, 2010
1 commit
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Introduces a more complete intel_ring_buffer structure with callbacks
for setup and management of a particular ringbuffer, and converts the
render ring buffer consumers to use it.Signed-off-by: Zou Nan hai
Signed-off-by: Xiang Hai hao
[anholt: Fixed up whitespace fail and rebased against prep patches]
Signed-off-by: Eric Anholt
07 Jan, 2010
1 commit
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This patch adds a new execbuf ioctl, execbuf2, for use by clients that
want to control fence register allocation more finely. The buffer
passed in to the new ioctl includes a new relocation type to indicate
whether a given object needs a fence register assigned for the command
buffer in question.Compatibility with the existing execbuf ioctl is implemented in terms
of the new code, preserving the assumption that fence registers are
required for pre-965 rendering commands.Signed-off-by: Jesse Barnes
[ickle: Remove pre-emptive clear_fence_reg()]
Signed-off-by: Chris Wilson
Signed-off-by: Kristian Høgsberg
[anholt: Removed dmesg spam]
Signed-off-by: Eric Anholt
08 Dec, 2009
1 commit
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This merges the upstream Intel tree and fixes up numerous conflicts
due to patches merged into Linus tree later in -rc cycle.Conflicts:
drivers/char/agp/intel-agp.c
drivers/gpu/drm/drm_dp_i2c_helper.c
drivers/gpu/drm/i915/i915_irq.c
drivers/gpu/drm/i915/i915_suspend.c
04 Dec, 2009
1 commit
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This let's use use the linux drm headers as the canonical source for
libdrm on all platforms.Signed-off-by: Kristian Høgsberg
Signed-off-by: Dave Airlie
02 Dec, 2009
1 commit
-
Signed-off-by: Kristian Høgsberg
Signed-off-by: Eric Anholt