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2010-11-23intel-gtt: kill unneeded sandybridge memory typesDaniel Vetter1-6/+0
Used for the now dead agp type_to_mask stuff. Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
2010-11-23intel-gtt: drop dcache support for i830 and laterDaniel Vetter1-7/+1
i830_check_flags already disallows it, so no need to implement it in the write_entry function. Seems to be a remnant from i810 support. Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
2010-11-23agp/intel: Remove confusion of stolen entries not stolen memoryChris Wilson1-33/+7
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
2010-11-23agp/intel: Remove the artificial cap on stolen sizeChris Wilson1-13/+3
Now that the stolen memory does not also steal entries from the GTT, we can use all the memory the BIOS set aside for the GPU. Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
2010-11-22Merge branch 'drm-intel-fixes' into drm-intel-nextChris Wilson1-1/+0
Conflicts: drivers/gpu/drm/i915/i915_gem.c
2010-11-17BKL: remove extraneous #include <smp_lock.h>Arnd Bergmann1-1/+0
The big kernel lock has been removed from all these files at some point, leaving only the #include. Remove this too as a cleanup. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-11-15Merge branch 'drm-intel-fixes' into drm-intel-nextChris Wilson1-0/+5
Conflicts: drivers/gpu/drm/i915/i915_gem.c drivers/gpu/drm/i915/intel_ringbuffer.c
2010-11-09Merge branch 'drm-intel-fixes' of ↵Dave Airlie1-3/+3
git://git.kernel.org/pub/scm/linux/kernel/git/ickle/drm-intel * 'drm-intel-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/ickle/drm-intel: drm/i915: Fix LVDS fixed-mode regression from 219adae1 drm/i915/ringbuffer: Use the HEAD auto-reporting mechanism drm/i915: Avoid might_fault during pwrite whilst holding our mutex agp/intel: fix cache control for sandybridge agp/intel: restore cache behavior on sandybridge drm/i915; Don't apply Ironlake FDI clock workaround to Sandybridge drm/i915: Fix KMS regression on Sandybridge/CPT i915: reprogram power monitoring registers on resume drm/i915: SNB BLT workaround drm/i915: Fix the graphics frequency clamping at init and when IPS is active. drm/i915: Allow powersave modparam to be adjusted at runtime. drm/i915: Apply big hammer to serialise buffer access between rings drm/i915: opregion_setup: iounmap correct address drm/i915: Flush read-only buffers from the active list upon idle as well i915: signedness bug in check_overlay_src() drm/i915: Fix typo from "Enable DisplayPort Audio"
2010-11-04agp/intel: fix cache control for sandybridgeZhenyu Wang1-2/+2
This is broken from 97ef1bdd0bc75bce7b2058e9c432b6c277dcf4d3. Let's set the correct bit for LLC+MLC and LLC only. Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com> Cc: stable@kernel.org Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
2010-11-04agp/intel: restore cache behavior on sandybridgeZhenyu Wang1-1/+1
This restores cache behavior for default AGP_USER_MEMORY as uncached, and leave default AGP_USER_CACHED_MEMORY as LLC only. I've seen different cache behavior on one sandybridge desktop CPU vs. another mobile CPU. Until we figure out how to detect the real cache config, restore back to the original behavior now. Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com> Cc: stable@kernel.org Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
2010-11-02agp/intel: restore cache behavior on sandybridgeZhenyu Wang1-1/+1
This restores cache behavior for default AGP_USER_MEMORY as uncached, and leave default AGP_USER_CACHED_MEMORY as LLC only. I've seen different cache behavior on one sandybridge desktop CPU vs. another mobile CPU. Until we figure out how to detect the real cache config, restore back to the original behavior now. Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
2010-11-02agp/intel: fix cache control for sandybridgeZhenyu Wang1-2/+2
This is broken from 97ef1bdd0bc75bce7b2058e9c432b6c277dcf4d3. Let's set the correct bit for LLC+MLC and LLC only. Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
2010-10-31agp/intel: the GMCH is always enabled for integrated processor graphicsChris Wilson1-16/+27
... and trying to set the bit is ineffectual. Fixes the regression from e380f60 which detected that we were trying to do undefined operations on the I830_GMCH_CTRL. Reported-by: Alexey Fisher <bug-track@fisher-privat.net> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
2010-10-29agp/intel: Sandybridge doesn't require GMCH enablingChris Wilson1-7/+30
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
2010-10-29parisc-agp: fix missing slab.h includeKyle McMartin1-0/+1
Commit 338e4fab added a missing kfree if the alloc_pci_dev failed but forgot to include <linux/slab.h> for the definition of kfree. Signed-off-by: Kyle McMartin <kyle@redhat.com>
2010-10-28Merge branch 'next' of ↵Linus Torvalds1-0/+4
git://git.kernel.org/pub/scm/linux/kernel/git/kyle/parisc-2.6 * 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/kyle/parisc-2.6: parisc: add tty driver to PDC console drivers/parisc/iosapic.c: Remove unnecessary kzalloc cast parisc: remove homegrown L1_CACHE_ALIGN macro arch/parisc: Removing undead ifdef CONFIG_PA20 parisc: unwind - optimise linked-list searches for modules parisc: change to new flag variable drivers/char/agp/parisc-agp.c: eliminate memory leak parisc: kill __do_IRQ parisc: convert eisa interrupts to flow handlers parisc: convert gsc and dino pci interrupts to flow handlers parisc: convert suckyio interrupts to flow handlers parisc: convert iosapic interrupts to proper flow handlers parisc: convert cpu interrupts to proper flow handlers parisc: lay groundwork for killing __do_IRQ parisc: add prlimit64 syscall parisc: squelch warning when using dev_get_stats
2010-10-28intel-gtt: maximize ggtt size on platforms that support thisDaniel Vetter2-29/+81
On VT-d supporting platforms the GGTT is allocated in a stolen mem section separate from graphcis stolen mem. The GMCH register contains a bitfield specifying the size of that region. Docs suggest that this region can only be used for GGTT and PPGTT. Hence ensure that the PPGTT is disabled and use the complete area for the GGTT. Unfortunately the graphics core on G33/Pineview can't cope with really large GTTs and the BIOS usually enables the maximum of 512MB. So don't bother with maximizing the GTT on these platforms. Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
2010-10-28intel-gtt: save PGETBL_CTL later in the setup processDaniel Vetter1-7/+7
... and switch to a more classical store-reg-on-suspend, restore-on-resume way of doing things. Obviously this is just preparation for the future, the code is not there at all, yet. This is needed because the next patch adjusts this register and everything in it (not just the pagetable address) needs to be restored on resume. Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
2010-10-27Merge branch 'drm-core-next' of ↵Linus Torvalds8-1094/+804
git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6 * 'drm-core-next' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6: (476 commits) vmwgfx: Implement a proper GMR eviction mechanism drm/radeon/kms: fix r6xx/7xx 1D tiling CS checker v2 drm/radeon/kms: properly compute group_size on 6xx/7xx drm/radeon/kms: fix 2D tile height alignment in the r600 CS checker drm/radeon/kms/evergreen: set the clear state to the blit state drm/radeon/kms: don't poll dac load detect. gpu: Add Intel GMA500(Poulsbo) Stub Driver drm/radeon/kms: MC vram map needs to be >= pci aperture size drm/radeon/kms: implement display watermark support for evergreen drm/radeon/kms/evergreen: add some additional safe regs v2 drm/radeon/r600: fix tiling issues in CS checker. drm/i915: Move gpu_write_list to per-ring drm/i915: Invalidate the to-ring, flush the old-ring when updating domains drm/i915/ringbuffer: Write the value passed in to the tail register agp/intel: Restore valid PTE bit for Sandybridge after bdd3072 drm/i915: Fix flushing regression from 9af90d19f drm/i915/sdvo: Remove unused encoding member i915: enable AVI infoframe for intel_hdmi.c [v4] drm/i915: Fix current fb blocking for page flip drm/i915: IS_IRONLAKE is synonymous with gen == 5 ... Fix up conflicts in - drivers/gpu/drm/i915/{i915_gem.c, i915/intel_overlay.c}: due to the new simplified stack-based kmap_atomic() interface - drivers/gpu/drm/vmwgfx/vmwgfx_drv.c: added .llseek entry due to BKL removal cleanups.
2010-10-25Merge branch 'for-next' of ↵Linus Torvalds2-2/+2
git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial * 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (39 commits) Update broken web addresses in arch directory. Update broken web addresses in the kernel. Revert "drivers/usb: Remove unnecessary return's from void functions" for musb gadget Revert "Fix typo: configuation => configuration" partially ida: document IDA_BITMAP_LONGS calculation ext2: fix a typo on comment in ext2/inode.c drivers/scsi: Remove unnecessary casts of private_data drivers/s390: Remove unnecessary casts of private_data net/sunrpc/rpc_pipe.c: Remove unnecessary casts of private_data drivers/infiniband: Remove unnecessary casts of private_data drivers/gpu/drm: Remove unnecessary casts of private_data kernel/pm_qos_params.c: Remove unnecessary casts of private_data fs/ecryptfs: Remove unnecessary casts of private_data fs/seq_file.c: Remove unnecessary casts of private_data arm: uengine.c: remove C99 comments arm: scoop.c: remove C99 comments Fix typo configue => configure in comments Fix typo: configuation => configuration Fix typo interrest[ing|ed] => interest[ing|ed] Fix various typos of valid in comments ... Fix up trivial conflicts in: drivers/char/ipmi/ipmi_si_intf.c drivers/usb/gadget/rndis.c net/irda/irnet/irnet_ppp.c
2010-10-22agp/intel: Restore valid PTE bit for Sandybridge after bdd3072Chris Wilson1-3/+3
In cleaning up the mask functions in bdd3072, the setting of the PTE valid bit was dropped for Sandybridge. Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
2010-10-22drivers/char/agp/parisc-agp.c: eliminate memory leakJulia Lawall1-0/+4
alloc_pci_dev allocates some memory, so that memory should be freed before leaving the function in an error case. A simplified version of the semantic match that finds this problem is: (http://coccinelle.lip6.fr/) // <smpl> @r exists@ local idexpression x; expression E; identifier f1; iterator I; @@ x = alloc_pci_dev(...); <... when != x when != true (x == NULL || ...) when != if (...) { <+...x...+> } when != I (...) { <+...x...+> } ( x == NULL | x == E | x->f1 ) ...> * return ...; // </smpl> Signed-off-by: Julia Lawall <julia@diku.dk> Dan Carpenter <error27@gmail.com> Dave Airlie <airlied@linux.ie> Cc: Helge Deller <deller@gmx.de> Cc: "James E.J. Bottomley" <jejb@parisc-linux.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Kyle McMartin <kyle@redhat.com>
2010-10-22Merge branch 'x86-amd-nb-for-linus' of ↵Linus Torvalds2-12/+25
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'x86-amd-nb-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: x86, amd_nb: Enable GART support for AMD family 0x15 CPUs x86, amd: Use compute unit information to determine thread siblings x86, amd: Extract compute unit information for AMD CPUs x86, amd: Add support for CPUID topology extension of AMD CPUs x86, nmi: Support NMI watchdog on newer AMD CPU families x86, mtrr: Assume SYS_CFG[Tom2ForceMemTypeWB] exists on all future AMD CPUs x86, k8: Rename k8.[ch] to amd_nb.[ch] and CONFIG_K8_NB to CONFIG_AMD_NB x86, k8-gart: Decouple handling of garts and northbridges x86, cacheinfo: Fix dependency of AMD L3 CID x86, kvm: add new AMD SVM feature bits x86, cpu: Fix allowed CPUID bits for KVM guests x86, cpu: Update AMD CPUID feature bits x86, cpu: Fix renamed, not-yet-shipping AMD CPUID feature bit x86, AMD: Remove needless CPU family check (for L3 cache info) x86, tsc: Remove CPU frequency calibration on AMD
2010-10-19agp/intel: Also add B43.1 to list of supported devicesChris Wilson1-0/+1
This was a missing piece from 41a5142 that dropped recognition of the AGP module for the second B43 variant. Reported-by: Stefan Bader <stefan.bader@canonical.com> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: stable@kernel.org
2010-10-19agp/amd-k7: Allow binding user memory to the AGP GART.Francisco Jerez1-2/+4
TTM-based DRM drivers need to be able to bind user memory to the AGP aperture. This patch fixes the "[TTM] AGP Bind memory failed." errors and the subsequent fallout seen with the nouveau driver. Signed-off-by: Francisco Jerez <currojerez@riseup.net> Tested-by: Grzesiek Sójka <pld@pfu.pl> Signed-off-by: Dave Airlie <airlied@redhat.com>
2010-10-18Update broken web addresses in the kernel.Justin P. Mattock2-2/+2
The patch below updates broken web addresses in the kernel Signed-off-by: Justin P. Mattock <justinmattock@gmail.com> Cc: Maciej W. Rozycki <macro@linux-mips.org> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Finn Thain <fthain@telegraphics.com.au> Cc: Randy Dunlap <rdunlap@xenotime.net> Cc: Matt Turner <mattst88@gmail.com> Cc: Dimitry Torokhov <dmitry.torokhov@gmail.com> Cc: Mike Frysinger <vapier.adi@gmail.com> Acked-by: Ben Pfaff <blp@cs.stanford.edu> Acked-by: Hans J. Koch <hjk@linutronix.de> Reviewed-by: Finn Thain <fthain@telegraphics.com.au> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2010-10-13Merge branch 'amd-iommu/2.6.37' of ↵Ingo Molnar3-27/+81
git://git.kernel.org/pub/scm/linux/kernel/git/joro/linux-2.6-iommu into core/iommu
2010-09-24some clean up to intel-gtt.cJan Beulich1-2/+1
In commit e517a5e97080bbe52857bd0d7df9b66602d53c4d the call to map_page_into_agp() got removed from intel_i830_setup_flush(), but the counterpart call from intel_i830_fini_flush() to unmap_page_from_agp() was left in place. Additionally, the page allocated here never gets its physical address used for sending to hardware, so there's no need to allocate it with GFP_DMA32. Nor is __GFP_ZERO really necessary, as the page is used only to store data to force flushing of some internal processor state. Signed-off-by: Jan Beulich <jbeulich@novell.com> Cc: Eric Anholt <eric@anholt.net> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
2010-09-21intel-gtt add a cleanup function for chipset specific stuffDaniel Vetter1-8/+31
The old code didn't clean up the i830 chipset flush page. And it looks nicer. Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
2010-09-21intel-gtt: store the dma mask size in intel_gtt_driverDaniel Vetter1-7/+11
Storing this explicitly makes for clearer code and hopefully less further confusion. Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
2010-09-21intel-gtt: clean up gtt size reportingDaniel Vetter1-1/+5
Consolidate everything in intel-gtt.c and also kill the export of intel_max_stolen. Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
2010-09-21agp: kill agp_(unmap|map)_memoryDaniel Vetter2-11/+0
DMA remapping was only used by the intel-gtt driver. With that code now folded into the driver, kill the agp generic support for it. Cc: Dave Airlie <airlied@linux.ie> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
2010-09-21intel-gtt: consolidate fake_agp driver structsDaniel Vetter1-131/+39
They're now all the same. Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
2010-09-21intel-gtt: move chipset flush to the gtt driver structDaniel Vetter1-7/+21
This is the last differentiator between the different fake agp drivers. Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
2010-09-21intel-gtt: kill mask_memory functionsDaniel Vetter1-92/+13
That indirection mess can now go. Add a dummy i81x gtt_driver to avoid a NULL pointer check. Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
2010-09-21intel-gtt: generic (insert|remove)_entries for sandybridgeDaniel Vetter1-136/+8
Like before, but now with the added bonus of being able to kill quite a bit of no-longer userful code (the old dmar support stuff). Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
2010-09-21intel-gtt: generic (insert|remove)_entries for g33/i965Daniel Vetter1-12/+9
Like for the i915. Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
2010-09-21intel-gtt: generic (insert|remove)_entries for i915Daniel Vetter1-11/+49
Beef up the generic version to support dmar. Otherwise like for the i830. v2: Don't try to DMA remap on resume for already remapped pages. Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
2010-09-21intel-gtt: generic (insert|remove)_entries for i830Daniel Vetter1-25/+28
Well, not all too generic because it does not yet support dmar. Add a new function check_flags to ensure that non-gem code does not try to screw us over. v2: Beautify i830_check_flags with an idea from Chris Wilson. Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
2010-09-21agp: kill agp_(map|unmap)_pageDaniel Vetter2-23/+1
Only used to remap the scratch page. Now that intel-gtt does this itself, kill the support code. Cc: Dave Airlie <airlied@linux.ie> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
2010-09-21intel-gtt: drop agp scratch page support stuffDaniel Vetter1-28/+0
intel-gtt.c now handles the scratch page itself, so drop all that was just there to support it. Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
2010-09-21intel-gtt: introduce pte write function for gen6Daniel Vetter1-22/+26
Like for i830. intel_i9xx_configure is now unused, so kill it. Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
2010-09-21intel-gtt: introduce pte write function for g33/i965/gm45Daniel Vetter1-2/+15
Like for the i830. Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
2010-09-21intel-gtt: introduce pte write function for i8xx/i915/i945Daniel Vetter1-9/+32
And put it to use in the gtt configuration code that writes the scratch page addr in all gtt ptes. This makes intel_i830_configure generic, hence rename it to intel_fake_agp_configure. Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
2010-09-21intel-gtt: initialize our own scratch pageDaniel Vetter1-17/+64
The intel gtt fake agp driver is the only agp driver to use dma address remapping. So it makes sense to fold this code back into the only user (and thus reduce the reliance on the agp code). This patch does the first step by initializing (and remapping) the scratch page in a new function intel_gtt_setup_scratch_page. Unfortunately intel_gtt_cleanup had to move to avoid a forward declaration. The new scratch page is not yet used, though. v2: Refactor out scratch page teardown. Suggested by Chris Wilson on irc. This makes it clear what's going on and results in a nice symmetry between setup and teardown. Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
2010-09-21Merge branch 'drm-intel-fixes' into HEADChris Wilson2-0/+4
Conflicts: drivers/char/agp/intel-agp.c drivers/gpu/drm/i915/intel_crt.c
2010-09-21x86, k8: Rename k8.[ch] to amd_nb.[ch] and CONFIG_K8_NB to CONFIG_AMD_NBAndreas Herrmann2-2/+2
The file names are somehow misleading as the code is not specific to AMD K8 CPUs anymore. The files accomodate code for other AMD CPU northbridges as well. Same is true for the config option which is valid for AMD CPU northbridges in general and not specific to K8. Signed-off-by: Andreas Herrmann <andreas.herrmann3@amd.com> LKML-Reference: <20100917160343.GD4958@loge.amd.com> Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
2010-09-18x86, k8-gart: Decouple handling of garts and northbridgesAndreas Herrmann1-10/+23
So far we only provide num_k8_northbridges. This is required in different areas (e.g. L3 cache index disable, GART). But not all AMD CPUs provide a GART. Thus it is useful to split off the GART handling from the generic caching of AMD northbridge misc devices. Signed-off-by: Andreas Herrmann <andreas.herrmann3@amd.com> LKML-Reference: <20100917160254.GC4958@loge.amd.com> Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
2010-09-17drm/i915,agp/intel: Add second set of PCI-IDs for B43Chris Wilson2-0/+4
There is a second revision of B43 (a desktop gen4 part) floating around, functionally equivalent to the original B43, so simply add the new PCI-IDs. Bugzilla: https://bugs.freedesktop.org/show_bugs.cgi?id=30221 Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: stable@kernel.org
2010-09-15agp/intel: Fix resume regression from 2d2430cfChris Wilson1-4/+10
On i915 [EeePCs] something scribles over the registers during suspend and resume so we must save a copy of the PGETBL_CTL register programmed by the BIOS and restore that upon resume. Reported-by: Sitsofe Wheeler <sitsofe@yahoo.com> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
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