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85ee17ebee
linux_dsm_epyc7002/drivers/gpu/drm/i915
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Praveen Paneri 85ee17ebee drm/i915/bxt: Broxton decoupled MMIO 
Decoupled MMIO is an alternative way to access forcewake domain
registers, which requires less cycles for a single read/write and
avoids frequent software forcewake.
This certainly gives advantage over the forcewake as this new
mechanism “decouples” CPU cycles and allow them to complete even
when GT is in a CPD (frequency change) or C6 state.

This can co-exist with forcewake and we will continue to use forcewake
as appropriate. E.g. 64-bit register writes to avoid writing 2 dwords
separately and land into funny situations.

v2:
- Moved platform check out of the function and got rid of duplicate
 functions to find out decoupled power domain (Chris)
- Added a check for forcewake already held and skipped decoupled
 access (Chris)
- Skipped writing 64 bit registers through decoupled MMIO (Chris)

v3:
- Improved commit message with more info on decoupled mmio (Tvrtko)
- Changed decoupled operation to enum and used u32 instead of
 uint_32 data type for register offset (Tvrtko)
- Moved HAS_DECOUPLED_MMIO to device info (Tvrtko)
- Added lookup table for converting fw_engine to pd_engine (Tvrtko)
- Improved __gen9_decoupled_read and __gen9_decoupled_write
 routines (Tvrtko)

v4:
- Fixed alignment and variable names (Chris)
- Write GEN9_DECOUPLED_REG0_DW1 register in just one go (Zhe Wang)

v5:
- Changed HAS_DECOUPLED_MMIO() argument name to dev_priv (Tvrtko)
- Sanitize info->had_decoupled_mmio at init (Chris)

Signed-off-by: Zhe Wang <zhe1.wang@intel.com>
Signed-off-by: Praveen Paneri <praveen.paneri@intel.com>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@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/1479230360-22395-1-git-send-email-praveen.paneri@intel.com
2016-11-16 09:33:10 +00:00
..
gvt drm/i915/gvt: add KVMGT support 2016-11-10 15:45:39 +08:00
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: Refactor object page API 2016-10-28 20:53:46 +01:00
i915_debugfs.c drm/i915/scheduler: Execute requests in order of priorities 2016-11-14 21:01:21 +00:00
i915_drv.c drm/i915/scheduler: Signal the arrival of a new request 2016-11-14 21:00:26 +00:00
i915_drv.h drm/i915/bxt: Broxton decoupled MMIO 2016-11-16 09:33:10 +00:00
i915_gem_batch_pool.c drm/i915: Move GEM activity tracking into a common struct reservation_object 2016-10-28 20:53:50 +01:00
i915_gem_batch_pool.h
i915_gem_context.c drm/i915: Store the execution priority on the context 2016-11-14 21:01:22 +00:00
i915_gem_dmabuf.c drm/i915: Move GEM activity tracking into a common struct reservation_object 2016-10-28 20:53:50 +01:00
i915_gem_evict.c drm/i915: Enable multiple timelines 2016-10-28 20:53:57 +01:00
i915_gem_execbuffer.c drm/i915: Further assorted dev_priv cleanups 2016-11-11 14:58:26 +00:00
i915_gem_fence_reg.c drm/i915: Split out i915_vma.c 2016-11-11 14:34:54 +02:00
i915_gem_fence_reg.h drm/i915: Split out i915_vma.c 2016-11-11 14:34:54 +02:00
i915_gem_gtt.c drm/i915: Pass dev_priv to INTEL_INFO everywhere apart from the gen use 2016-11-11 14:58:26 +00:00
i915_gem_gtt.h drm/i915: Split out i915_vma.c 2016-11-11 14:34:54 +02:00
i915_gem_internal.c drm/i915: Allow shrinking of userptr objects once again 2016-11-01 16:35:26 +00:00
i915_gem_object.h drm/i915: Split out i915_vma.c 2016-11-11 14:34:54 +02:00
i915_gem_render_state.c drm/i915: Introduce HAS_64BIT_RELOC 2016-11-03 12:45:57 +02:00
i915_gem_render_state.h drm/i915: Reuse the active golden render state batch 2016-10-28 20:53:44 +01:00
i915_gem_request.c drm/i915: Store the execution priority on the context 2016-11-14 21:01:22 +00:00
i915_gem_request.h drm/i915/scheduler: Execute requests in order of priorities 2016-11-14 21:01:21 +00:00
i915_gem_shrinker.c drm/i915: Unify global_list into global_link 2016-11-02 15:17:13 +02:00
i915_gem_stolen.c drm/i915: Assorted dev_priv cleanups 2016-11-11 14:58:26 +00:00
i915_gem_tiling.c drm/i915: Fix pages pin counting around swizzle quirk 2016-11-04 11:55:39 +00:00
i915_gem_timeline.c drm/i915: Create distinct lockclasses for execution vs user timelines 2016-11-14 21:00:21 +00:00
i915_gem_timeline.h drm/i915: Create distinct lockclasses for execution vs user timelines 2016-11-14 21:00:21 +00:00
i915_gem_userptr.c drm/i915: Assorted dev_priv cleanups 2016-11-11 14:58:26 +00:00
i915_gem.c drm/i915/scheduler: Boost priorities for flips 2016-11-14 21:01:22 +00:00
i915_gem.h drm/i915: avoid harmless empty-body warning 2016-11-08 17:33:47 +01:00
i915_gpu_error.c drm/i915: More assorted dev_priv cleanups 2016-11-11 14:58:26 +00:00
i915_guc_reg.h
i915_guc_submission.c drm/i915/scheduler: Execute requests in order of priorities 2016-11-14 21:01:21 +00:00
i915_ioc32.c
i915_irq.c drm/i915: Further assorted dev_priv cleanups 2016-11-11 14:58:26 +00:00
i915_memcpy.c
i915_mm.c
i915_params.c drm/i915: rename preliminary_hw_support to alpha_support 2016-11-14 15:33:27 +02:00
i915_params.h drm/i915: rename preliminary_hw_support to alpha_support 2016-11-14 15:33:27 +02:00
i915_pci.c drm/i915/bxt: Broxton decoupled MMIO 2016-11-16 09:33:10 +00:00
i915_pvinfo.h
i915_reg.h drm/i915/bxt: Broxton decoupled MMIO 2016-11-16 09:33:10 +00:00
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: Give each sw_fence its own lockclass 2016-11-14 21:00:20 +00:00
i915_sw_fence.h drm/i915: Give each sw_fence its own lockclass 2016-11-14 21:00:20 +00:00
i915_sysfs.c drm/i915: Allow disabling error capture 2016-10-12 12:00:32 +01:00
i915_trace_points.c
i915_trace.h drm/i915: Introduce a global_seqno for each request 2016-10-28 20:53:53 +01:00
i915_vgpu.c
i915_vgpu.h
i915_vma.c drm/i915: Split out i915_vma.c 2016-11-11 14:34:54 +02:00
i915_vma.h drm/i915: Fix test on inputs for vma_compare() 2016-11-14 15:59:21 +00:00
intel_acpi.c
intel_atomic_plane.c drm/i915: Add horizontal mirroring support for CHV pipe B planes 2016-11-14 19:58:48 +02:00
intel_atomic.c
intel_audio.c drm/i915: Pass atomic state to intel_audio_codec_enable, v2. 2016-11-09 13:55:05 +01:00
intel_bios.c drm/i915: Assume non-DP++ port if dvo_port is HDMI and there's no AUX ch specified in the VBT 2016-11-14 16:29:46 +02:00
intel_bios.h
intel_breadcrumbs.c drm/i915: Spin until breadcrumb threads are complete 2016-11-09 15:01:52 +00:00
intel_color.c drm/i915: Pass dev_priv to INTEL_INFO everywhere apart from the gen use 2016-11-11 14:58:26 +00:00
intel_crt.c drm/i915: More assorted dev_priv cleanups 2016-11-11 14:58:26 +00:00
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: Pass atomic state to intel_audio_codec_enable, v2. 2016-11-09 13:55:05 +01:00
intel_device_info.c drm/i915: Don't try to initialize sprite planes on pre-ilk 2016-10-31 16:56:32 +02:00
intel_display.c drm/i915/gen9+: Kill off hw_ddb from intel_crtc. 2016-11-15 13:13:47 +01:00
intel_dp_aux_backlight.c
intel_dp_link_training.c
intel_dp_mst.c drm/i915: Kill dp_encoder_is_mst 2016-11-14 20:27:54 +02:00
intel_dp.c drm/i915: Simplify DP port limited color range bit platform checks 2016-11-14 20:27:54 +02:00
intel_dpio_phy.c drm/i915/bxt: Don't set OCL2_LDOFUSE_PWR_DIS bit in phy init sequence 2016-11-02 09:35:47 +02:00
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
intel_drv.h drm/i915/gen9+: Kill off hw_ddb from intel_crtc. 2016-11-15 13:13:47 +01:00
intel_dsi_dcs_backlight.c
intel_dsi_panel_vbt.c
intel_dsi_pll.c drm/i915: Make IS_BROXTON only take dev_priv 2016-10-14 12:23:19 +01:00
intel_dsi.c drm/i915: Make IS_CHERRYVIEW only take dev_priv 2016-10-14 12:23:19 +01:00
intel_dsi.h
intel_dvo.c drm/i915: Pass dev_priv to intel_get_crtc_for_pipe() 2016-11-01 16:40:38 +02:00
intel_engine_cs.c drm/i915/scheduler: Execute requests in order of priorities 2016-11-14 21:01:21 +00:00
intel_fbc.c drm/i915/fbc: convert intel_fbc.c to use INTEL_GEN() 2016-11-14 14:00:29 -02:00
intel_fbdev.c drm/i915: Pass dev_priv to INTEL_INFO everywhere apart from the gen use 2016-11-11 14:58:26 +00:00
intel_fifo_underrun.c drm/i915: Always use intel_get_crtc_for_pipe() 2016-11-01 16:40:38 +02:00
intel_frontbuffer.c
intel_frontbuffer.h
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: Further assorted dev_priv cleanups 2016-11-11 14:58:26 +00:00
intel_guc.h drm/i915/guc: Cache the client mapping 2016-11-03 19:57:43 +00:00
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_hangcheck.c drm/i915: Move hangcheck code out from i915_irq.c 2016-11-02 11:59:10 +02:00
intel_hdmi.c drm/i915: Pass atomic state to intel_audio_codec_enable, v2. 2016-11-09 13:55:05 +01:00
intel_hotplug.c drm/i915: More assorted dev_priv cleanups 2016-11-11 14:58:26 +00:00
intel_i2c.c drm/i915: GMBUS don't need no forcewake 2016-10-17 14:26:42 +03:00
intel_lrc.c drm/i915/scheduler: Execute requests in order of priorities 2016-11-14 21:01:21 +00:00
intel_lrc.h drm/i915: Make sure engines are idle during GPU idling in LR mode 2016-11-07 14:48:05 +02:00
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: Pass dev_priv to intel_get_crtc_for_pipe() 2016-11-01 16:40:38 +02:00
intel_mocs.c
intel_mocs.h
intel_modes.c
intel_opregion.c
intel_overlay.c drm/i915: Use lockless object free 2016-10-28 20:53:50 +01:00
intel_panel.c
intel_pm.c drm/i915/gen9+: Kill off hw_ddb from intel_crtc. 2016-11-15 13:13:47 +01:00
intel_psr.c drm/i915: More assorted dev_priv cleanups 2016-11-11 14:58:26 +00:00
intel_renderstate_gen6.c
intel_renderstate_gen7.c
intel_renderstate_gen8.c
intel_renderstate_gen9.c
intel_renderstate.h
intel_ringbuffer.c drm/i915: Defer transfer onto execution timeline to actual hw submission 2016-11-14 21:00:23 +00:00
intel_ringbuffer.h drm/i915/scheduler: Execute requests in order of priorities 2016-11-14 21:01:21 +00:00
intel_runtime_pm.c drm/i915: Pass dev_priv to .get_display_clock_speed() 2016-11-01 16:40:38 +02:00
intel_sdvo_regs.h
intel_sdvo.c drm/i915: Pass dev_priv to IS_MOBILE() 2016-11-01 16:40:38 +02:00
intel_sideband.c
intel_sprite.c drm/i915/gen9+: Program watermarks as a separate step during evasion, v3. 2016-11-15 11:23:11 +01:00
intel_tv.c drm/i915: Pass dev_priv to intel_wait_for_vblank() 2016-11-01 16:40:38 +02:00
intel_uncore.c drm/i915/bxt: Broxton decoupled MMIO 2016-11-16 09:33:10 +00:00
intel_vbt_defs.h drm/i915: Assume non-DP++ port if dvo_port is HDMI and there's no AUX ch specified in the VBT 2016-11-14 16:29:46 +02:00
Kconfig drm/i915: rename preliminary_hw_support to alpha_support 2016-11-14 15:33:27 +02:00
Kconfig.debug
Makefile drm/i915: Split out i915_vma.c 2016-11-11 14:34:54 +02:00