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linux/drivers/gpu/drm/i915
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Zhiyuan Lv 331f38e77d drm/i915: preallocate pdps for 32 bit vgpu 
This is based on Mika Kuoppala's patch below:
http://article.gmane.org/gmane.comp.freedesktop.xorg.drivers.intel/61104/match=workaround+hw+preload

The patch will preallocate the page directories for 32-bit PPGTT when
i915 runs inside a virtual machine with Intel GVT-g. With this change,
the root pointers in EXECLIST context will always keep the same.

The change is needed for vGPU because Intel GVT-g will do page table
shadowing, and needs to track all the page table changes from guest
i915 driver. However, if guest PPGTT is modified through GPU commands
like LRI, it is not possible to trap the operations in the right time,
so it will be hard to make shadow PPGTT to work correctly.

Shadow PPGTT could be much simpler with this change. Meanwhile
hypervisor could simply prohibit any attempt of PPGTT modification
through GPU command for security.

The function gen8_preallocate_top_level_pdps() in the patch is from
Mika, with only one change to set "used_pdpes" to avoid duplicated
allocation later.

Cc: Mika Kuoppala <mika.kuoppala@intel.com>
Cc: Dave Gordon <david.s.gordon@intel.com>
Cc: Michel Thierry <michel.thierry@intel.com>
Signed-off-by: Zhiyuan Lv <zhiyuan.lv@intel.com>
Signed-off-by: Zhi Wang <zhi.a.wang@intel.com>
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2015-09-02 11:42:53 +02:00
..
dvo.h
dvo_ch7xxx.c
dvo_ch7017.c
dvo_ivch.c Fix resume from suspend on IBM X30 2015-06-15 12:21:01 +02:00
dvo_ns2501.c drm/i915: Enable dithering on NatSemi DVO2501 for Fujitsu S6010 2015-04-23 21:31:58 +02:00
dvo_sil164.c
dvo_tfp410.c
i915_cmd_parser.c drm/i915: Bump command parser version number. 2015-09-01 11:40:15 +02:00
i915_debugfs.c drm/i915: add yesno utility function 2015-09-02 11:16:44 +02:00
i915_dma.c drm/i915: Fix module initialisation, v2. 2015-09-02 09:52:25 +02:00
i915_drv.c drm/i915: Fix module initialisation, v2. 2015-09-02 09:52:25 +02:00
i915_drv.h drm/i915: add yesno utility function 2015-09-02 11:16:44 +02:00
i915_gem.c drm/i915/bxt: don't allow cached GEM mappings on A stepping 2015-08-26 09:39:14 +02:00
i915_gem_batch_pool.c drm/i915: Split batch pool into size buckets 2015-04-10 08:56:05 +02:00
i915_gem_batch_pool.h drm/i915: Split batch pool into size buckets 2015-04-10 08:56:05 +02:00
i915_gem_context.c drm/i915: Remove the failed context from the fpriv->context_idr 2015-08-14 17:50:41 +02:00
i915_gem_debug.c drm/i915: Implement inter-engine read-read optimisations 2015-05-21 15:11:42 +02:00
i915_gem_dmabuf.c drm/i915: remove unused has_dma_mapping flag 2015-07-13 22:42:41 +02:00
i915_gem_evict.c drm/i915: kerneldoc for i915_gem_shrinker.c 2015-03-20 11:48:16 +01:00
i915_gem_execbuffer.c Merge tag 'drm-intel-fixes-2015-07-15' into drm-intel-next-queued 2015-07-15 16:36:50 +02:00
i915_gem_fence.c drm/i915/gtt: Allow >= 4GB offsets in X86_32 2015-08-14 18:16:30 +02:00
i915_gem_gtt.c drm/i915: preallocate pdps for 32 bit vgpu 2015-09-02 11:42:53 +02:00
i915_gem_gtt.h drm/i915/gtt: Allow >= 4GB offsets in X86_32 2015-08-14 18:16:30 +02:00
i915_gem_render_state.c drm/i915: Add provision to extend Golden context batch 2015-07-21 09:30:57 +02:00
i915_gem_render_state.h drm/i915: Add provision to extend Golden context batch 2015-07-21 09:30:57 +02:00
i915_gem_shrinker.c drm/i915: Simplify object is-pinned checking for shrinker 2015-04-10 10:58:34 +02:00
i915_gem_stolen.c drm/i915: fix stolen bios_reserved checks 2015-08-14 17:50:38 +02:00
i915_gem_tiling.c Merge tag 'drm-intel-fixes-2015-08-14' into drm-intel-next-fixes 2015-08-14 18:11:30 +02:00
i915_gem_userptr.c drm/i915/userptr: Kill user_size limit check 2015-08-14 18:16:27 +02:00
i915_gpu_error.c drm/i915: add yesno utility function 2015-09-02 11:16:44 +02:00
i915_guc_reg.h drm/i915: GuC-specific firmware loader 2015-08-14 18:16:39 +02:00
i915_guc_submission.c drm/i915: Notify GuC rc6 state 2015-09-02 10:39:01 +02:00
i915_ioc32.c Merge tag 'drm-intel-fixes-2015-07-15' into drm-intel-next-queued 2015-07-15 16:36:50 +02:00
i915_irq.c drm/i915/bxt: Add HPD support for DDIA 2015-08-14 18:16:32 +02:00
i915_params.c Partially revert "drm/i915: Use full atomic modeset." 2015-08-26 15:14:52 +02:00
i915_reg.h drm/i915: Add CHV PHY LDO power sanity checks 2015-09-01 11:44:57 +02:00
i915_suspend.c drm/i915: use dev_priv for the FBC functions 2015-07-08 11:39:45 +02:00
i915_sysfs.c drm/i915/vlv: fix RC6 residency time calculation 2015-06-15 11:56:37 +02:00
i915_trace.h drm/i915/gen8: implement alloc/free for 4lvl 2015-08-14 18:16:21 +02:00
i915_trace_points.c
i915_vgpu.c drm/i915: Adds graphic address space ballooning logic 2015-02-13 23:28:23 +01:00
i915_vgpu.h drm/i915: Add ULL postfix to VGT_MAGIC constant 2015-03-17 22:30:18 +01:00
intel_acpi.c
intel_atomic.c drm/i915: remove excessive scaler debugging messages 2015-08-14 18:16:45 +02:00
intel_atomic_plane.c drm/i915: Remove transitional references from intel_plane_atomic_check. 2015-06-22 14:28:29 +02:00
intel_audio.c Merge tag 'drm-intel-fixes-2015-07-15' into drm-intel-next-queued 2015-07-15 16:36:50 +02:00
intel_bios.c drm/i915: Per-DDI I_boost override 2015-08-14 18:13:09 +02:00
intel_bios.h drm/i915: Per-DDI I_boost override 2015-08-14 18:13:09 +02:00
intel_crt.c drm/i915: Get rid of dpms handling. 2015-08-14 17:50:33 +02:00
intel_csr.c drm/i915/gen9: Removed byte swapping for csr firmware 2015-08-05 11:00:04 +02:00
intel_ddi.c drm/i915: Put back lane_count into intel_dp and add link_rate too 2015-08-26 09:58:19 +02:00
intel_display.c drm/i915: move intel_hrawclk() to intel_display.c 2015-09-02 11:00:04 +02:00
intel_dp.c drm/i915: move intel_hrawclk() to intel_display.c 2015-09-02 11:00:04 +02:00
intel_dp_mst.c drm/i915: Put back lane_count into intel_dp and add link_rate too 2015-08-26 09:58:19 +02:00
intel_drv.h drm/i915: move intel_hrawclk() to intel_display.c 2015-09-02 11:00:04 +02:00
intel_dsi.c drm/i915: DSI pixel clock check 2015-08-26 10:29:12 +02:00
intel_dsi.h drm/i915: Use the CRC gpio for panel enable/disable 2015-07-21 09:22:43 +02:00
intel_dsi_panel_vbt.c drm/i915: s/dpio_lock/sb_lock/ 2015-05-28 11:13:51 +02:00
intel_dsi_pll.c drm/i915: Changes required to enable DSI Video Mode on CHT 2015-07-03 07:39:02 +02:00
intel_dvo.c drm/i915: DVO pixel clock check 2015-08-26 10:29:20 +02:00
intel_fbc.c drm/i915: fix FBC frontbuffer tracking flushing code 2015-08-05 09:59:44 +02:00
intel_fbdev.c drm/i915/gtt: Allow >= 4GB offsets in X86_32 2015-08-14 18:16:30 +02:00
intel_fifo_underrun.c drm/i915: Check for driver readyness before handling an underrun interrupt 2015-03-04 10:04:19 +02:00
intel_frontbuffer.c drm/i915: fix FBC frontbuffer tracking flushing code 2015-08-05 09:59:44 +02:00
intel_guc.h drm/i915: Integrate GuC-based command submission 2015-08-14 18:16:44 +02:00
intel_guc_fwif.h drm/i915/guc: Support GuC version 4.3 2015-09-02 09:54:56 +02:00
intel_guc_loader.c drm/i915/guc: Support GuC version 4.3 2015-09-02 09:54:56 +02:00
intel_hdmi.c drm/i915: Clean up CHV lane soft reset programming 2015-09-01 11:43:37 +02:00
intel_hotplug.c drm/i915: don't use HPD_PORT_A as an alias for HPD_NONE 2015-07-22 10:44:51 +02:00
intel_i2c.c Merge branch 'drm-next' of git://people.freedesktop.org/~airlied/linux 2015-06-26 13:18:51 -07:00
intel_lrc.c drm/i915: preallocate pdps for 32 bit vgpu 2015-09-02 11:42:53 +02:00
intel_lrc.h drm/i915: Integrate GuC-based command submission 2015-08-14 18:16:44 +02:00
intel_lvds.c drm/i915: LVDS pixel clock check 2015-08-26 10:29:05 +02:00
intel_mocs.c drm/i915: Added Programming of the MOCS 2015-07-14 17:13:14 +02:00
intel_mocs.h drm/i915: Added Programming of the MOCS 2015-07-14 17:13:14 +02:00
intel_modes.c
intel_opregion.c Merge tag 'drm-intel-fixes-2015-07-15' into drm-intel-next-queued 2015-07-15 16:36:50 +02:00
intel_overlay.c drm/i915: Update intel_ring_begin() to take a request structure 2015-06-23 14:02:29 +02:00
intel_panel.c drm/i915: Backlight control using CRC PMIC based PWM driver 2015-07-21 09:22:48 +02:00
intel_pm.c Merge tag 'topic/drm-misc-2015-07-28' into drm-intel-next-queued 2015-08-06 14:27:09 +02:00
intel_psr.c drm/i915: VLV/CHV PSR: Increase wait delay time before active PSR. 2015-08-05 10:07:44 +02:00
intel_renderstate.h
intel_renderstate_gen6.c drm/i915: Add headers to the various render state 2014-12-10 17:47:23 +01:00
intel_renderstate_gen7.c drm/i915: Add headers to the various render state 2014-12-10 17:47:23 +01:00
intel_renderstate_gen8.c drm/i915: Add headers to the various render state 2014-12-10 17:47:23 +01:00
intel_renderstate_gen9.c drm/i915: Add headers to the various render state 2014-12-10 17:47:23 +01:00
intel_ringbuffer.c drm/i915: Contain the WA_REG macro 2015-08-14 17:50:42 +02:00
intel_ringbuffer.h drm/i915/bxt: work around HW coherency issue when accessing GPU seqno 2015-08-26 09:39:13 +02:00
intel_runtime_pm.c drm/i915: Add CHV PHY LDO power sanity checks 2015-09-01 11:44:57 +02:00
intel_sdvo.c drm/i915: Make some string arrays const 2015-08-26 11:19:36 +02:00
intel_sdvo_regs.h
intel_sideband.c drm/i915: s/dpio_lock/sb_lock/ 2015-05-28 11:13:51 +02:00
intel_sprite.c drm/i915: always disable irqs in intel_pipe_update_start 2015-07-15 15:06:02 +02:00
intel_tv.c drm/i915: Use ARRAY_SIZE() instead of hand rolling it 2015-08-26 11:19:30 +02:00
intel_uncore.c drm/i915: gen 9 can check for unclaimed registers too 2015-08-26 15:14:02 +02:00
Kconfig drm/i915: Remove KMS Kconfig option 2015-06-22 16:16:35 +02:00
Makefile drm/i915: Prepare for GuC-based command submission 2015-08-14 18:16:41 +02:00