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alistair23-linux/drivers/gpu/drm/i915
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Chris Wilson 920cf41949 drm/i915: Introduce an internal allocator for disposable private objects 
Quite a few of our objects used for internal hardware programming do not
benefit from being swappable or from being zero initialised. As such
they do not benefit from using a shmemfs backing storage and since they
are internal and never directly exposed to the user, we do not need to
worry about providing a filp. For these we can use an
drm_i915_gem_object wrapper around a sg_table of plain struct page. They
are not swap backed and not automatically pinned. If they are reaped
by the shrinker, the pages are released and the contents discarded. For
the internal use case, this is fine as for example, ringbuffers are
pinned from being written by a request to be read by the hardware. Once
they are idle, they can be discarded entirely. As such they are a good
match for execlist ringbuffers and a small variety of other internal
objects.

In the first iteration, this is limited to the scratch batch buffers we
use (for command parsing and state initialisation).

v2: Allocate physically contiguous pages, where possible.
v3: Reduce maximum order on subsequent requests following an allocation
failure.
v4: Fix up mismatch between swiotlb segment size and page count (it
counts in 2k units, not 4k pages)

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20161028125858.23563-7-chris@chris-wilson.co.uk
2016-10-28 20:53:44 +01:00
..
gvt drm/i915: Rearrange i915_wait_request() accounting with callers 2016-10-28 20:53:43 +01:00
dvo.h
dvo_ch7xxx.c
dvo_ch7017.c
dvo_ivch.c
dvo_ns2501.c
dvo_sil164.c
dvo_tfp410.c
i915_cmd_parser.c drm/i915: Allocate intel_engine_cs structure only for the enabled engines 2016-10-14 09:58:43 +01:00
i915_debugfs.c drm/i915: Rename for_each_plane -> for_each_universal_plane 2016-10-28 11:26:36 -07:00
i915_drv.c drm/i915: Add a relay backed debugfs interface for capturing GuC logs 2016-10-25 09:34:23 +01:00
i915_drv.h drm/i915: Introduce an internal allocator for disposable private objects 2016-10-28 20:53:44 +01:00
i915_gem.c drm/i915: Defer active reference until required 2016-10-28 20:53:43 +01:00
i915_gem.h
i915_gem_batch_pool.c drm/i915: Introduce an internal allocator for disposable private objects 2016-10-28 20:53:44 +01:00
i915_gem_batch_pool.h drm/i915: Double check the active status on the batch pool 2016-08-04 20:19:50 +01:00
i915_gem_context.c drm/i915: Defer active reference until required 2016-10-28 20:53:43 +01:00
i915_gem_dmabuf.c drm/prime: Take a ref on the drm_dev when exporting a dma_buf 2016-10-05 15:30:32 +02:00
i915_gem_dmabuf.h
i915_gem_evict.c drm/i915: Move user fault tracking to a separate list 2016-10-24 13:45:35 +01:00
i915_gem_execbuffer.c drm/i915: Defer active reference until required 2016-10-28 20:53:43 +01:00
i915_gem_fence.c drm/i915: Move fence cancellation to runtime suspend 2016-10-24 13:45:38 +01:00
i915_gem_gtt.c drm/i915: Defer active reference until required 2016-10-28 20:53:43 +01:00
i915_gem_gtt.h drm/i915: Remove unused "valid" parameter from pte_encode 2016-10-14 12:40:32 +01:00
i915_gem_internal.c drm/i915: Introduce an internal allocator for disposable private objects 2016-10-28 20:53:44 +01:00
i915_gem_render_state.c drm/i915: Introduce an internal allocator for disposable private objects 2016-10-28 20:53:44 +01:00
i915_gem_render_state.h drm/i915: Use VMA for render state page tracking 2016-08-15 11:01:11 +01:00
i915_gem_request.c drm/i915: Rearrange i915_wait_request() accounting with callers 2016-10-28 20:53:43 +01:00
i915_gem_request.h drm/i915: Remove unused i915_gem_active_wait() in favour of _unlocked() 2016-10-28 20:53:43 +01:00
i915_gem_shrinker.c drm/i915: Treat a framebuffer reference as an active reference whilst shrinking 2016-10-12 17:17:20 +01:00
i915_gem_stolen.c drm/i915: Make IS_GEN macros only take dev_priv 2016-10-14 12:23:22 +01:00
i915_gem_tiling.c drm/i915: Use RPM as the barrier for controlling user mmap access 2016-10-24 13:45:35 +01:00
i915_gem_userptr.c drm/i915: Rearrange i915_wait_request() accounting with callers 2016-10-28 20:53:43 +01:00
i915_gpu_error.c drm/i915: Include the kernel uptime in the error state 2016-10-25 13:22:43 +01:00
i915_guc_reg.h drm/i915/guc: general tidying up (loader) 2016-09-15 10:56:02 +01:00
i915_guc_submission.c drm/i915/guc: WA to address the Ringbuffer coherency issue 2016-10-25 21:00:29 +01:00
i915_ioc32.c
i915_irq.c drm/i915: Correct pipe fault reporting string 2016-10-27 15:08:43 +01:00
i915_memcpy.c drm/i915: Mark the static key for movntqda as static 2016-08-17 12:36:07 +01:00
i915_mm.c drm/i915: Use remap_io_mapping() to prefault all PTE in a single pass 2016-08-19 17:13:36 +01:00
i915_params.c drm/i915: Allow disabling error capture 2016-10-12 12:00:32 +01:00
i915_params.h drm/i915: Allow disabling error capture 2016-10-12 12:00:32 +01:00
i915_pci.c drm/i915: keep declarations in i915_drv.h 2016-09-22 14:53:29 +03:00
i915_pvinfo.h
i915_reg.h drm/i915: Address broxton phy registers based on phy and channel number 2016-10-28 12:25:24 +03:00
i915_suspend.c drm/i915: Make IS_GEN macros only take dev_priv 2016-10-14 12:23:22 +01:00
i915_sw_fence.c drm/i915: Allow i915_sw_fence_await_sw_fence() to allocate 2016-10-28 20:53:42 +01:00
i915_sw_fence.h drm/i915: Allow i915_sw_fence_await_sw_fence() to allocate 2016-10-28 20:53:42 +01:00
i915_sysfs.c drm/i915: Allow disabling error capture 2016-10-12 12:00:32 +01:00
i915_trace.h dma-buf: Rename struct fence to dma_fence 2016-10-25 14:40:39 +02:00
i915_trace_points.c
i915_vgpu.c Merge tag 'drm-intel-next-2016-09-19' of git://anongit.freedesktop.org/drm-intel into drm-next 2016-09-20 06:23:22 +10:00
i915_vgpu.h
intel_acpi.c
intel_atomic.c
intel_atomic_plane.c drm: Add drm_rotation_90_or_270() 2016-10-21 18:21:33 +02:00
intel_audio.c drm/i915/audio: set proper N/M in modeset 2016-10-26 12:36:30 +03:00
intel_bios.c drm/i915: Clean up DDI DDC/AUX CH sanitation 2016-10-21 15:43:40 +03:00
intel_bios.h
intel_breadcrumbs.c dma-buf: Rename struct fence to dma_fence 2016-10-25 14:40:39 +02:00
intel_color.c drm/i915: Make IS_CHERRYVIEW only take dev_priv 2016-10-14 12:23:19 +01:00
intel_crt.c drm/i915: Make IS_GEN macros only take dev_priv 2016-10-14 12:23:22 +01:00
intel_csr.c drm/i915/DMC/KBL: Load DMC on KBL using the no_stepping_info array 2016-10-26 14:20:53 -07:00
intel_ddi.c drm/i915: Move broxton vswing sequence to intel_dpio_phy.c 2016-10-28 12:24:45 +03:00
intel_device_info.c drm/i915: Reduce trickery in DEV_INFO_FOR_EACH_FLAG 2016-10-05 15:24:54 +03:00
intel_display.c drm/i915: Rearrange i915_wait_request() accounting with callers 2016-10-28 20:53:43 +01:00
intel_dp.c drm/i915: Change the placement of some static functions in intel_dp.c 2016-10-28 15:06:31 +03:00
intel_dp_aux_backlight.c
intel_dp_link_training.c drm/i915/skl: drop workarounds for A0 and B0 revisions 2016-09-26 12:08:22 +03:00
intel_dp_mst.c Revert "drm/i915: start adding dp mst audio" 2016-09-29 11:02:41 +03:00
intel_dpio_phy.c drm/i915: Address broxton phy registers based on phy and channel number 2016-10-28 12:25:24 +03:00
intel_dpll_mgr.c drm/i915: Address broxton phy registers based on phy and channel number 2016-10-28 12:25:24 +03:00
intel_dpll_mgr.h drm/i915/dp: Add a standalone function to obtain shared dpll for HSW/BDW/SKL/BXT 2016-09-09 14:53:18 -07:00
intel_drv.h drm/i915: Use macro in place of open-coded for_each_universal_plane loop 2016-10-28 11:27:19 -07:00
intel_dsi.c drm/i915: Make IS_CHERRYVIEW only take dev_priv 2016-10-14 12:23:19 +01:00
intel_dsi.h
intel_dsi_dcs_backlight.c drm/i915: Mass convert dev->dev_private to to_i915(dev) 2016-07-04 12:54:07 +01:00
intel_dsi_panel_vbt.c drm/i915/dsi: double check element parsing against size if present 2016-09-19 18:38:11 +03:00
intel_dsi_pll.c drm/i915: Make IS_BROXTON only take dev_priv 2016-10-14 12:23:19 +01:00
intel_dvo.c drm/i915: Store port enum in intel_encoder 2016-09-21 09:32:00 -07:00
intel_engine_cs.c drm/i915: Introduce an internal allocator for disposable private objects 2016-10-28 20:53:44 +01:00
intel_fbc.c Merge remote-tracking branch 'airlied/drm-next' into drm-intel-next-queued 2016-10-25 08:57:53 +02:00
intel_fbdev.c drm/i915: pdev cleanup 2016-08-22 12:19:52 +01:00
intel_fifo_underrun.c drm/i915: Make IS_GEN macros only take dev_priv 2016-10-14 12:23:22 +01:00
intel_frontbuffer.c drm/i915: Use dev_priv consistently through the intel_frontbuffer interface 2016-08-04 20:20:03 +01:00
intel_frontbuffer.h drm/i915: Use dev_priv consistently through the intel_frontbuffer interface 2016-08-04 20:20:03 +01:00
intel_guc.h drm/i915: Debugfs support for GuC logging control 2016-10-25 09:34:23 +01:00
intel_guc_fwif.h drm/i915: Increase GuC log buffer size to reduce flush interrupts 2016-10-25 09:34:23 +01:00
intel_guc_loader.c drm/i915: Support for GuC interrupts 2016-10-25 09:34:06 +01:00
intel_gvt.c Documentation/gpu: Add section for Intel GVT-g host support 2016-10-20 17:18:39 +08:00
intel_gvt.h drm/i915/gvt: clean up intel_gvt.h as interface for i915 core 2016-10-20 17:18:30 +08:00
intel_hdmi.c drm/i915: Respect alternate_ddc_pin for all DDI ports 2016-10-21 15:43:40 +03:00
intel_hotplug.c drm/i915: Mark i915_hpd_poll_init_work as static 2016-08-17 12:36:15 +01:00
intel_i2c.c drm/i915: GMBUS don't need no forcewake 2016-10-17 14:26:42 +03:00
intel_lrc.c drm/i915: Allocate intel_engine_cs structure only for the enabled engines 2016-10-14 09:58:43 +01:00
intel_lrc.h drm/i915: Update reset path to fix incomplete requests 2016-09-09 14:23:05 +01:00
intel_lspcon.c drm/i915/lspcon: Add workaround for resuming in PCON mode 2016-10-26 12:41:01 +03:00
intel_lvds.c drm/i915: Make IS_GEN macros only take dev_priv 2016-10-14 12:23:22 +01:00
intel_mocs.c drm/i915: Rename struct intel_ringbuffer to struct intel_ring 2016-08-02 22:58:16 +01:00
intel_mocs.h drm/i915: rename 'ring' where it refers to an engine or engine_id 2016-07-21 09:59:41 +01:00
intel_modes.c drm: Remove superflous linux/fb.h includes 2016-08-12 10:41:39 +02:00
intel_opregion.c drm/i915: Ignore OpRegion panel type except on select machines 2016-09-14 11:25:05 +03:00
intel_overlay.c drm/i915: Allocate intel_engine_cs structure only for the enabled engines 2016-10-14 09:58:43 +01:00
intel_panel.c drm/i915/backlight: setup backlight pwm alternate increment on backlight enable 2016-10-10 16:05:52 +03:00
intel_pm.c drm/i915: Use macro in place of open-coded for_each_universal_plane loop 2016-10-28 11:27:19 -07:00
intel_psr.c drm/i915: Make IS_CHERRYVIEW only take dev_priv 2016-10-14 12:23:19 +01:00
intel_renderstate.h drm/i915: Remove duplicate golden render state init from execlists 2016-08-02 22:58:30 +01:00
intel_renderstate_gen6.c
intel_renderstate_gen7.c
intel_renderstate_gen8.c
intel_renderstate_gen9.c
intel_ringbuffer.c drm/i915: Introduce an internal allocator for disposable private objects 2016-10-28 20:53:44 +01:00
intel_ringbuffer.h drm/i915: Remove unused i915_gem_active_wait() in favour of _unlocked() 2016-10-28 20:53:43 +01:00
intel_runtime_pm.c drm/i915: Add location of the Rcomp resistor to bxt_ddi_phy_info 2016-10-28 12:25:03 +03:00
intel_sdvo.c drm/i915: Make INTEL_DEVID only take dev_priv 2016-10-14 12:23:19 +01:00
intel_sdvo_regs.h
intel_sideband.c
intel_sprite.c Merge tag 'drm-intel-next-2016-10-24' of git://anongit.freedesktop.org/drm-intel into drm-next 2016-10-25 16:39:43 +10:00
intel_tv.c drm/i915: Make INTEL_DEVID only take dev_priv 2016-10-14 12:23:19 +01:00
intel_uncore.c drm/i915: Just clear the mmiodebug before a register access 2016-10-10 16:06:41 +03:00
intel_vbt_defs.h
Kconfig Merge tag 'gvt-next-2016-10-27' of https://github.com/01org/gvt-linux into drm-intel-next-queued 2016-10-27 10:33:17 +02:00
Kconfig.debug drm/i915: Select DRM_VGEM for igt 2016-07-10 13:22:39 +01:00
Makefile drm/i915: Introduce an internal allocator for disposable private objects 2016-10-28 20:53:44 +01:00