WSL2-Linux-Kernel/drivers/gpu/drm/i915
Damien Lespiau dc25381392 drm/i915/skl: Replace the HDMI DPLL divider computation algorithm
The HW validation team came back from further testing with a slightly
changed constraint on the deviation between the DCO frequency and the
central frequency. Instead of +-4%, it's now +1%/-6%.

Unfortunately, the previous algorithm didn't quite cope with these new
constraints, the reason being that it wasn't thorough enough looking at
the possible divider candidates.

The new algorithm looks at all dividers, which is definitely a hammer
approach (we could reduce further the set of dividers to good ones as a
follow up, at the cost of a bit more complicated code). But, at least,
we can now satisfy the +1%/+6% rule for all the "Well known" HDMI
frequencies of my test set (373 entries).

On that subject, the new code is quite extensively tested in
intel-gpu-tools (tools/skl_compute_wrpll).

v2: Fix cycling between central frequencies and dividers (Paulo)
    Properly choose the minimal deviation between postive and negative
    candidates (Paulo).

    On the 373 test frequencies, v2 computes better dividers than v1 (ie
    more even dividers and lower deviation on average):

    v1: average deviation: 206.52
    v2: average deviation: 194.47

Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2015-06-26 19:39:14 +02:00
..
Kconfig drm/i915: Remove KMS Kconfig option 2015-06-22 16:16:35 +02:00
Makefile drm/i915: move generic hotplug code into new intel_hotplug.c file 2015-06-22 15:03:42 +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: Add SCRATCH1 and ROW_CHICKEN3 to the register whitelist. 2015-06-15 16:00:48 +03:00
i915_debugfs.c drm/i915/gtt: Introduce struct i915_page_dma 2015-06-26 10:51:04 +02:00
i915_dma.c drm/i915: Report an error when i915.reset prevents a reset 2015-06-23 14:01:38 +02:00
i915_drv.c drm/i915: Report an error when i915.reset prevents a reset 2015-06-23 14:01:38 +02:00
i915_drv.h drm/i915: Nuke lvds downclock support 2015-06-24 10:27:26 +02:00
i915_gem.c drm/i915/gtt: Allow >= 4GB sizes for vm. 2015-06-26 10:41:13 +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: Update intel_ring_begin() to take a request structure 2015-06-23 14:02:29 +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 dma-buf: cleanup dma_buf_export() to make it easily extensible 2015-04-21 14:47:16 +05:30
i915_gem_evict.c drm/i915: kerneldoc for i915_gem_shrinker.c 2015-03-20 11:48:16 +01:00
i915_gem_execbuffer.c drm/i915: Move the request/file and request/pid association to creation time 2015-06-23 14:02:33 +02:00
i915_gem_gtt.c drm/i915/gtt: Switch gen8_free_page_tables params 2015-06-26 18:36:32 +02:00
i915_gem_gtt.h drm/i915/gtt: Move scratch_pd and scratch_pt into vm struct 2015-06-26 11:06:30 +02:00
i915_gem_render_state.c drm/i915: Update ring->dispatch_execbuffer() to take a request structure 2015-06-23 14:02:25 +02:00
i915_gem_render_state.h drm/i915: Update render_state_init() to take a request structure 2015-06-23 14:02:12 +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: use proper FBC base register on all new platforms 2015-04-09 15:57:46 +02:00
i915_gem_tiling.c drm/i915: Simplify i915_gem_obj_is_pinned() test for set-tiling 2015-04-16 11:20:29 +02:00
i915_gem_userptr.c drm/i915: Use uninterruptible mutex_lock for userptr bo creation 2015-05-20 11:26:03 +02:00
i915_gpu_error.c drm/i915: Implement inter-engine read-read optimisations 2015-05-21 15:11:42 +02:00
i915_ioc32.c
i915_irq.c drm/i915: reduce line width in {pch, i9xx}_get_hpd_pins() 2015-06-22 15:04:43 +02:00
i915_params.c drm/i915: Nuke lvds downclock support 2015-06-24 10:27:26 +02:00
i915_reg.h drm/i915/gen8: Add WaClearSlmSpaceAtContextSwitch workaround 2015-06-24 00:22:38 +02:00
i915_suspend.c drm/i915: Remove regfile code&data for UMS suspend/resume 2015-02-27 18:10:39 +01:00
i915_sysfs.c drm/i915/vlv: fix RC6 residency time calculation 2015-06-15 11:56:37 +02:00
i915_trace.h drm/i915: Update ring->sync_to() to take a request structure 2015-06-23 14:02:27 +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: Make cdclk part of the atomic state. 2015-06-22 14:28:37 +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 drm/i915/audio: do not mess with audio registers if port is invalid 2015-05-08 13:03:36 +02:00
intel_bios.c drm/i915: Nuke lvds downclock support 2015-06-24 10:27:26 +02:00
intel_bios.h drm/i915: Fix the VBT child device parsing for BSW 2015-04-10 08:56:14 +02:00
intel_crt.c drm/i915: Disable CRT port after pipe on PCH platforms 2015-05-21 23:23:16 +02:00
intel_csr.c Merge remote-tracking branch 'airlied/drm-next' into HEAD 2015-06-23 14:01:53 +02:00
intel_ddi.c drm/i915/skl: Replace the HDMI DPLL divider computation algorithm 2015-06-26 19:39:14 +02:00
intel_display.c drm/i915: Add debug messages for pipe enable/disable 2015-06-25 14:12:14 +02:00
intel_dp.c drm/i915/drrs: Restrict buffer tracking to the DRRS pipe 2015-06-24 00:22:36 +02:00
intel_dp_mst.c drm/i915: Use for_each_connector_in_state helper macro 2015-05-08 13:03:58 +02:00
intel_drv.h drm/i915: Store frontbuffer_bits in the plane 2015-06-25 14:11:44 +02:00
intel_dsi.c drm/i915/dsi: remove non-op hot plug callback 2015-05-29 10:15:21 +02:00
intel_dsi.h drm/i915/dsi: add drm mipi dsi host support 2015-01-29 16:51:39 +01:00
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: s/dpio_lock/sb_lock/ 2015-05-28 11:13:51 +02:00
intel_dvo.c drm/i915: Silence compiler warning in dvo 2015-04-29 14:37:48 +03:00
intel_fbc.c drm/i915: don't set the FBC plane select bits on HSW+ 2015-06-15 18:36:42 +02:00
intel_fbdev.c drm/i915: Update i915_gem_object_sync() to take a request structure 2015-06-23 14:02:13 +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: Nuke lvds downclock support 2015-06-24 10:27:26 +02:00
intel_hdmi.c drm/i915: Double the port clock when using double clocked modes with 12bpc 2015-06-15 11:36:40 +02:00
intel_hotplug.c drm/i915: move generic hotplug code into new intel_hotplug.c file 2015-06-22 15:03:42 +02:00
intel_i2c.c drm/i915: don't register invalid gmbus pins for skl 2015-05-20 11:25:50 +02:00
intel_lrc.c drm/i915/lrc: Update PDPx registers with lri commands 2015-06-26 18:33:51 +02:00
intel_lrc.h drm/i915: Add *_ring_begin() to request allocation 2015-06-23 14:02:30 +02:00
intel_lvds.c drm/i915: Nuke lvds downclock support 2015-06-24 10:27:26 +02:00
intel_modes.c
intel_opregion.c drm/i915: Remove DRIVER_MODESET checks from modeset code 2015-02-27 18:10:53 +01:00
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/bxt: BLC implementation 2015-05-08 13:03:38 +02:00
intel_pm.c drm/i915: Remove more ilk rc6 remnants 2015-06-15 23:25:25 +02:00
intel_psr.c drm/i915/psr: Restrict single-shot updates to the PSR pipe 2015-06-24 00:22:37 +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: Remove the now obsolete 'outstanding_lazy_request' 2015-06-23 14:02:32 +02:00
intel_ringbuffer.h drm/i915: Remove the now obsolete 'outstanding_lazy_request' 2015-06-23 14:02:32 +02:00
intel_runtime_pm.c drm/i915: Throw out WIP CHV power well definitions 2015-05-28 11:13:50 +02:00
intel_sdvo.c drm/i915: Disable SDVO port after the pipe on PCH platforms 2015-05-21 23:22:01 +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: Store frontbuffer_bits in the plane 2015-06-25 14:11:44 +02:00
intel_tv.c drm/i915: Allocate connector state together with the connectors 2015-04-13 15:21:21 +03:00
intel_uncore.c drm/i915: Report an error when i915.reset prevents a reset 2015-06-23 14:01:38 +02:00