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b50a53715f
linux_dsm_epyc7002/drivers/gpu/drm/i915
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Ankitprasad Sharma b50a53715f drm/i915: Support for pread/pwrite from/to non shmem backed objects 
This patch adds support for extending the pread/pwrite functionality
for objects not backed by shmem. The access will be made through
gtt interface. This will cover objects backed by stolen memory as well
as other non-shmem backed objects.

v2: Drop locks around slow_user_access, prefault the pages before
access (Chris)

v3: Rebased to the latest drm-intel-nightly (Ankit)

v4: Moved page base & offset calculations outside the copy loop,
corrected data types for size and offset variables, corrected if-else
braces format (Tvrtko/kerneldocs)

v5: Enabled pread/pwrite for all non-shmem backed objects including
without tiling restrictions (Ankit)

v6: Using pwrite_fast for non-shmem backed objects as well (Chris)

v7: Updated commit message, Renamed i915_gem_gtt_read to i915_gem_gtt_copy,
added pwrite slow path for non-shmem backed objects (Chris/Tvrtko)

v8: Updated v7 commit message, mutex unlock around pwrite slow path for
non-shmem backed objects (Tvrtko)

v9: Corrected check during pread_ioctl, to avoid shmem_pread being
called for non-shmem backed objects (Tvrtko)

v10: Moved the write_domain check to needs_clflush and tiling mode check
to pwrite_fast (Chris)

v11: Use pwrite_fast fallback for all objects (shmem and non-shmem backed),
call fast_user_write regardless of pagefault in previous iteration

v12: Use page-by-page copy for slow user access too (Chris)

v13: Handled EFAULT, Avoid use of WARN_ON, put_fence only if whole obj
pinned (Chris)

v14: Corrected datatypes/initializations (Tvrtko)

Testcase: igt/gem_stolen, igt/gem_pread, igt/gem_pwrite

Signed-off-by: Ankitprasad Sharma <ankitprasad.r.sharma@intel.com>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1465548783-19712-1-git-send-email-ankitprasad.r.sharma@intel.com
2016-06-13 10:04:38 +01:00
..
dvo_ch7xxx.c
dvo_ch7017.c
dvo_ivch.c
dvo_ns2501.c
dvo_sil164.c
dvo_tfp410.c
dvo.h
i915_cmd_parser.c drm/i915: Fix a buch of kerneldoc warnings 2016-06-06 13:04:26 +01:00
i915_debugfs.c drm/i915: Revert async unpin and nonblocking atomic commit 2016-06-01 09:46:46 +02:00
i915_dma.c Merge remote-tracking branch 'airlied/drm-next' into drm-intel-next-queued 2016-06-02 09:54:12 +02:00
i915_drv.c Merge remote-tracking branch 'airlied/drm-next' into drm-intel-next-queued 2016-06-02 09:54:12 +02:00
i915_drv.h drm/i915: Introduce i915_gem_object_get_dma_address() 2016-06-13 10:03:55 +01:00
i915_gem_batch_pool.c drm/i915: Propagate error from drm_gem_object_init() 2016-04-28 12:28:58 +03:00
i915_gem_batch_pool.h
i915_gem_context.c drm/i915: Merge legacy+execlists context structs 2016-05-24 15:30:31 +01:00
i915_gem_debug.c
i915_gem_dmabuf.c Linux 4.6-rc3 2016-04-11 19:25:13 +02:00
i915_gem_evict.c drm/i915: Store a i915 backpointer from engine, and use it 2016-05-09 13:41:24 +01:00
i915_gem_execbuffer.c Merge remote-tracking branch 'airlied/drm-next' into drm-intel-next-queued 2016-06-02 09:54:12 +02:00
i915_gem_fence.c drm/i915: Introduce & use new lightweight SGL iterators 2016-05-20 13:43:00 +01:00
i915_gem_gtt.c drm/i915: Add support for mapping an object page by page 2016-06-13 10:03:54 +01:00
i915_gem_gtt.h drm/i915: Add support for mapping an object page by page 2016-06-13 10:03:54 +01:00
i915_gem_render_state.c drm/i915: Store a i915 backpointer from engine, and use it 2016-05-09 13:41:24 +01:00
i915_gem_render_state.h
i915_gem_shrinker.c drm/i915: Store a i915 backpointer from engine, and use it 2016-05-09 13:41:24 +01:00
i915_gem_stolen.c drm/i915/kbl: Add WaSkipStolenMemoryFirstPage for A0 2016-06-08 16:20:23 +03:00
i915_gem_tiling.c Merge branch 'drm-intel-next' of git://anongit.freedesktop.org/drm-intel into drm-next 2016-06-02 07:58:36 +10:00
i915_gem_userptr.c drm/i915: Introduce & use new lightweight SGL iterators 2016-05-20 13:43:00 +01:00
i915_gem.c drm/i915: Support for pread/pwrite from/to non shmem backed objects 2016-06-13 10:04:38 +01:00
i915_gem.h drm/i915: Add GEM debugging Kconfig option 2016-04-14 10:45:40 +01:00
i915_gpu_error.c drm/i915: Replace "INTEL_INFO->gen == x" checks with IS_GENx 2016-05-11 12:27:27 +01:00
i915_guc_reg.h drm/i915/bxt: reserve space for RC6 in the the GuC WOPCM 2016-05-18 12:49:19 +01:00
i915_guc_submission.c drm/i915/guc: disable GuC submission earlier during GuC (re)load 2016-06-07 14:21:58 +01:00
i915_ioc32.c
i915_irq.c drm/i915: Fix a buch of kerneldoc warnings 2016-06-06 13:04:26 +01:00
i915_params.c drm/i915/guc: enable GuC loading & submission by default 2016-06-07 14:21:58 +01:00
i915_params.h drm/i915: Revert async unpin and nonblocking atomic commit 2016-06-01 09:46:46 +02:00
i915_reg.h drm/i915/gen9: Add WaFbcHighMemBwCorruptionAvoidance 2016-06-08 16:27:07 +03:00
i915_suspend.c
i915_sysfs.c drm/i915: Rename struct intel_context 2016-05-24 15:27:14 +01:00
i915_trace_points.c
i915_trace.h drm/i915: Rename struct intel_context 2016-05-24 15:27:14 +01:00
i915_vgpu.c drm/i915: Fix a buch of kerneldoc warnings 2016-06-06 13:04:26 +01:00
i915_vgpu.h drm/i915: Use drm_i915_private as the native pointer for intel_uncore.c 2016-05-10 17:20:20 +01:00
intel_acpi.c
intel_atomic_plane.c drm/i915: Revert async unpin and nonblocking atomic commit 2016-06-01 09:46:46 +02:00
intel_atomic.c drm/i915: Revert async unpin and nonblocking atomic commit 2016-06-01 09:46:46 +02:00
intel_audio.c Merge branch 'drm-next' of git://people.freedesktop.org/~airlied/linux 2016-05-23 11:48:48 -07:00
intel_bios.c drm/i915: Check VBT for port presence in addition to the strap on VLV/CHV 2016-06-07 18:45:43 +03:00
intel_bios.h drm/i915: Parse LFP brightness control field in VBT 2016-05-02 16:17:38 +03:00
intel_color.c
intel_crt.c drm/i915: Give encoders useful names 2016-05-30 17:02:26 +03:00
intel_csr.c drm/i915/kbl: Introduce the first official DMC for Kabylake. 2016-05-05 16:49:01 -07:00
intel_ddi.c drm/i915: Give encoders useful names 2016-05-30 17:02:26 +03:00
intel_display.c Revert "drm/i915/ilk: Don't disable SSC source if it's in use" 2016-06-09 18:48:08 +02:00
intel_dp_aux_backlight.c drm/i915: Add Backlight Control using DPCD for eDP connectors (v9) 2016-04-26 15:17:54 +03:00
intel_dp_link_training.c
intel_dp_mst.c drm/i915: Give encoders useful names 2016-05-30 17:02:26 +03:00
intel_dp.c drm/i915: Extract physical display dimensions from VBT 2016-06-02 14:33:09 +03:00
intel_dpio_phy.c drm/i915: Move VLV HDMI lane reset work around logic to intel_dpio_phy.c 2016-04-29 09:59:00 +03:00
intel_dpll_mgr.c drm/i915: Use crtc->name in debug messages 2016-05-30 17:01:16 +03:00
intel_dpll_mgr.h
intel_drv.h drm/i915: Only ignore eDP ports that are connected 2016-06-01 09:46:48 +01:00
intel_dsi_dcs_backlight.c drm/i915/dsi: CABC support for Panel PWM backlight control 2016-05-17 16:12:39 +03:00
intel_dsi_panel_vbt.c drm/i915/dsi: add support for gpio elements on CHV 2016-04-27 09:48:17 +03:00
intel_dsi_pll.c drm/i915: Eliminate {vlv,bxt}_configure_dsi_pll() 2016-04-15 16:25:27 +03:00
intel_dsi.c drm/i915/dsi: fix bxt split screen and color issue 2016-06-06 09:44:40 +03:00
intel_dsi.h drm/i915/dsi: CABC support for Panel PWM backlight control 2016-05-17 16:12:39 +03:00
intel_dvo.c drm/i915: Give encoders useful names 2016-05-30 17:02:26 +03:00
intel_fbc.c drm/i915: Revert async unpin and nonblocking atomic commit 2016-06-01 09:46:46 +02:00
intel_fbdev.c Merge remote-tracking branch 'airlied/drm-next' into drm-intel-next-queued 2016-06-02 09:54:12 +02:00
intel_fifo_underrun.c drm/i915: Do not use {HAS_*, IS_*, INTEL_INFO}(dev_priv->dev) 2016-04-07 14:50:26 +03:00
intel_frontbuffer.c
intel_guc_fwif.h drm/i915/guc: rework guc_add_workqueue_item() 2016-05-23 14:21:53 +01:00
intel_guc_loader.c drm/i915/guc: suppress GuC-related message on non-GuC platforms 2016-06-13 10:02:51 +01:00
intel_guc.h drm/i915: Rename struct intel_context 2016-05-24 15:27:14 +01:00
intel_hdmi.c drm/i915: Check VBT for port presence in addition to the strap on VLV/CHV 2016-06-07 18:45:43 +03:00
intel_hotplug.c drm/i915: Small display interrupt handlers tidy 2016-05-09 13:38:16 +01:00
intel_i2c.c drm/i915: Make GMBUS timeout message DRM_DEBUG_KMS 2016-04-12 13:23:17 +03:00
intel_lrc.c drm/i915/kbl: Add WaClearSlmSpaceAtContextSwitch 2016-06-08 16:26:23 +03:00
intel_lrc.h drm/i915: Merge legacy+execlists context structs 2016-05-24 15:30:31 +01:00
intel_lvds.c drm/i915: Extract physical display dimensions from VBT 2016-06-02 14:33:09 +03:00
intel_mocs.c drm/i915/gen9: Add WaDisableSkipCaching 2016-06-08 16:25:03 +03:00
intel_mocs.h drm/i915/mocs: Program MOCS for all engines on init 2016-04-14 10:45:40 +01:00
intel_modes.c
intel_opregion.c drm/i915/opregion: Rename init/fini functions to register/unregister 2016-05-23 16:35:50 +01:00
intel_overlay.c Merge branch 'drm-intel-next' of git://anongit.freedesktop.org/drm-intel into drm-next 2016-06-02 07:58:36 +10:00
intel_panel.c Merge branch 'drm-intel-next' of git://anongit.freedesktop.org/drm-intel into drm-next 2016-06-02 07:58:36 +10:00
intel_pm.c drm/i915/gen9: Add WaFbcHighMemBwCorruptionAvoidance 2016-06-08 16:27:07 +03:00
intel_psr.c drm/i915/psr: Try to program link training times correctly 2016-05-23 15:10:25 +03:00
intel_renderstate_gen6.c
intel_renderstate_gen7.c
intel_renderstate_gen8.c
intel_renderstate_gen9.c
intel_renderstate.h
intel_ringbuffer.c drm/i915/skl: Extend WaDisableChickenBitTSGBarrierAckForFFSliceCS 2016-06-08 16:26:05 +03:00
intel_ringbuffer.h drm/i915: Rename struct intel_context 2016-05-24 15:27:14 +01:00
intel_runtime_pm.c drm/i915: Fix a buch of kerneldoc warnings 2016-06-06 13:04:26 +01:00
intel_sdvo_regs.h
intel_sdvo.c drm/i915: Give encoders useful names 2016-05-30 17:02:26 +03:00
intel_sideband.c
intel_sprite.c drm/i915: Give meaningful names to all the planes 2016-05-30 17:02:10 +03:00
intel_tv.c drm/i915: Give encoders useful names 2016-05-30 17:02:26 +03:00
intel_uncore.c drm/i915/guc: distinguish HAS_GUC() from HAS_GUC_UCODE/HAS_GUC_SCHED 2016-05-23 14:21:52 +01:00
intel_vbt_defs.h drm/i915: Extract physical display dimensions from VBT 2016-06-02 14:33:09 +03:00
Kconfig
Kconfig.debug drm/i915: Add GEM debugging Kconfig option 2016-04-14 10:45:40 +01:00
Makefile drm/i915/dsi: Add DCS control for Panel PWM 2016-05-17 16:12:38 +03:00