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linux-hardened/drivers/gpu/drm/i915
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Vidya Srinivas 1e69cd74af drm/i915: Program PFI credits for VLV 
PFI credit programming is required when CD clock (related to data flow from
display pipeline to end display) is greater than CZ clock (related to data
flow from memory to display plane). This programming should be done when all
planes are OFF to avoid intermittent hangs while accessing memory even from
different Gfx units (not just display).

If cdclk/czclk >=1, PFI credits could be set as any number. To get better
performance, larger PFI credit can be assigned to PND. Otherwise if
cdclk/czclk<1, the default PFI credit of 8 should be set.

v2:
    - Change log to lower log level instead of DRM_ERROR
    - Change function name to valleyview_program_pfi_credits
    - Move program PFI credits to modeset_init instead of intel_set_mode
    - Change magic numbers to logical constants

[vsyrjala v3:
 - only program in response to cdclk update
 - program the credits also when cdclk<czclk
 - add CHV bits
 v4:
 - Change CHV cdclk<czclk credits to 12 (Vijay)]

Signed-off-by: Vidya Srinivas <vidya.srinivas@intel.com>
Signed-off-by: Gajanan Bhat <gajanan.bhat@intel.com>
Signed-off-by: Vandana Kannan <vandana.kannan@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Vijay Purushothaman <vijay.a.purushothaman@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2015-03-17 22:30:15 +01:00
..
dvo.h
dvo_ch7xxx.c
dvo_ch7017.c
dvo_ivch.c
dvo_ns2501.c drm/i915: Check pixel clock in ns2501 mode_valid hook 2014-09-03 11:05:21 +02:00
dvo_sil164.c
dvo_tfp410.c
i915_cmd_parser.c drm/i915: Trim the command parser allocations 2015-02-23 17:07:40 +01:00
i915_debugfs.c drm/i915: Exit early from psr_status if PSR is not supported by the device 2015-03-17 22:30:10 +01:00
i915_dma.c drm/i915/chv: Determine CHV slice/subslice/EU info 2015-03-17 22:30:05 +01:00
i915_drv.c drm/i915: Remove irq-related FIXME in reset code 2015-03-17 22:29:49 +01:00
i915_drv.h drm/i915: Rewrite VLV/CHV watermark code 2015-03-17 22:30:14 +01:00
i915_gem.c drm/i915: also do frontbuffer tracking on pwrites 2015-03-17 22:29:52 +01:00
i915_gem_batch_pool.c drm/i915: Mark shadow batch buffers as purgeable 2014-12-16 10:39:09 +01:00
i915_gem_context.c drm/i915: Reset logical ring contexts' head and tail during GPU reset 2015-02-24 00:19:37 +01:00
i915_gem_debug.c
i915_gem_dmabuf.c dma-buf: use reservation objects 2014-07-08 13:03:20 -07:00
i915_gem_evict.c drm/i915: Add some extra guards in evict_vm 2015-01-06 09:07:59 +01:00
i915_gem_execbuffer.c drm/i915: pass which operation triggered the frontbuffer tracking 2015-03-17 22:29:51 +01:00
i915_gem_gtt.c drm/i915: Setup all page directories for gen8 2015-03-17 22:29:58 +01:00
i915_gem_gtt.h drm/i915: Create page table allocators 2015-02-25 16:53:43 +01:00
i915_gem_render_state.c drm/i915: Remove obsolete seqno parameter from 'i915_add_request' 2014-12-03 09:35:19 +01:00
i915_gem_render_state.h drm/i915/bdw: Render state init for Execlists 2014-09-03 11:04:52 +02:00
i915_gem_stolen.c Linux 4.0-rc3 2015-03-09 19:58:30 +10:00
i915_gem_tiling.c drm/i915: Check obj->vma_list under the struct_mutex 2015-02-24 15:30:42 +02:00
i915_gem_userptr.c drm/i915: Prevent use-after-free in invalidate_range_start callback 2015-02-05 16:31:30 +02:00
i915_gpu_error.c drm/i915: Add process identifier to requests 2015-02-13 23:28:37 +01:00
i915_ioc32.c drm/i915: remove redundant #ifdef CONFIG_COMPAT 2014-10-24 16:34:07 +02:00
i915_irq.c drm/i915/skl: Restore pipe interrupt registers after power well enabling 2015-03-17 22:30:07 +01:00
i915_params.c drm/i915: Disable the mmio.debug WARN after it fires 2015-03-17 22:30:00 +01:00
i915_reg.h drm/i915: Program PFI credits for VLV 2015-03-17 22:30:15 +01:00
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: Add media rc6 residency file to sysfs 2015-02-26 17:48:00 +01:00
i915_trace.h drm/i915/trace: Fix offsets for 64b 2015-02-13 23:28:11 +01:00
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 the display switch logic for vGPU in i915 driver 2015-02-13 23:28:24 +01:00
intel_acpi.c
intel_atomic.c drm/i915: Set crtc backpointer when duplicating crtc state 2015-03-17 22:29:53 +01:00
intel_atomic_plane.c drm/i915: Rotation property is now handled in DRM core 2015-03-10 09:59:33 +01:00
intel_audio.c drm/i915: Make intel_crtc->config a pointer 2015-01-27 09:50:50 +01:00
intel_bios.c drm/i915/skl: Support for edp low_vswing param in vbt 2015-02-25 16:06:00 +01:00
intel_bios.h drm/i915/skl: Support for edp low_vswing param in vbt 2015-02-25 16:06:00 +01:00
intel_crt.c drm/i915: Add atomic_get_property entrypoint for connectors (v2) 2015-01-27 09:57:10 +01:00
intel_ddi.c drm/i915/skl: Add support for edp 1.4 intermediate frequencies 2015-03-17 22:29:57 +01:00
intel_display.c drm/i915: Program PFI credits for VLV 2015-03-17 22:30:15 +01:00
intel_dp.c drm/i915/skl: Program PLL for edp1.4 intermediate frequencies 2015-03-17 22:29:57 +01:00
intel_dp_mst.c drm/i915: Add a for_each_intel_connector macro 2015-03-17 22:29:53 +01:00
intel_drv.h drm/i915/skl: Make gen8_irq_power_well_post_enable() take a pipe mask 2015-03-17 22:30:06 +01:00
intel_dsi.c Merge tag 'drm-intel-next-2015-02-14' of git://anongit.freedesktop.org/drm-intel into drm-next 2015-03-05 09:41:09 +10:00
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/dsi: remove intel_dsi_cmd.c and the unused functions therein 2015-01-29 16:57:14 +01:00
intel_dsi_pll.c drm/i915: Use DSI Pll1 for enabling MIPI DSI on Port C 2014-12-10 17:47:21 +01:00
intel_dvo.c drm/i915: Add atomic_get_property entrypoint for connectors (v2) 2015-01-27 09:57:10 +01:00
intel_fbc.c drm/i915: add frontbuffer tracking to FBC 2015-03-17 22:29:56 +01:00
intel_fbdev.c drm/i915: Make sure we invalidate frontbuffer on fbcon. 2015-03-17 22:30:14 +01:00
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: add frontbuffer tracking to FBC 2015-03-17 22:29:56 +01:00
intel_hdmi.c drm/i915: Add atomic_get_property entrypoint for connectors (v2) 2015-01-27 09:57:10 +01:00
intel_i2c.c drm/i915: Kill duplicated cdclk readout code from i2c 2014-07-07 11:27:52 +02:00
intel_lrc.c Linux 4.0-rc3 2015-03-09 19:58:30 +10:00
intel_lrc.h drm/i915: Rename 'flags' to 'dispatch_flags' for better code reading 2015-02-25 22:43:29 +01:00
intel_lvds.c drm/i915: Use enabled value from crtc_state rather than crtc (v2) 2015-02-26 00:14:02 +01:00
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: Remove DRIVER_MODESET checks from modeset code 2015-02-27 18:10:53 +01:00
intel_panel.c Merge branch 'drm-next' of git://people.freedesktop.org/~airlied/linux 2015-02-16 15:48:00 -08:00
intel_pm.c drm/i915: Rewrite VLV/CHV watermark code 2015-03-17 22:30:14 +01:00
intel_psr.c drm/i915/skl: Enabling PSR on Skylake 2015-01-28 17:22:29 +01:00
intel_renderstate.h drm/i915 Add golden context support for Gen9 2014-11-04 14:04:55 +01:00
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: fix simple_return.cocci warnings 2015-03-17 22:30:00 +01:00
intel_ringbuffer.h drm/i915: add frontbuffer tracking to FBC 2015-03-17 22:29:56 +01:00
intel_runtime_pm.c drm/i915: Spelling s/auxilliary/auxiliary/ 2015-03-17 22:30:12 +01:00
intel_sdvo.c drm/i915: Fix trivial typos in comments and warning message 2015-03-17 22:29:48 +01:00
intel_sdvo_regs.h
intel_sideband.c drm/i915: Correct the IOSF Dev_FN field for IOSF transfers 2015-02-09 14:26:19 +02:00
intel_sprite.c drm/i915/skl: Update watermarks for Y tiling 2015-02-27 18:10:56 +01:00
intel_tv.c drm/i915: Add atomic_get_property entrypoint for connectors (v2) 2015-01-27 09:57:10 +01:00
intel_uncore.c drm/i915: Disable the mmio.debug WARN after it fires 2015-03-17 22:30:00 +01:00
Kconfig drm/i915/dsi: add drm mipi dsi host support 2015-01-29 16:51:39 +01:00
Makefile drm/i915: Remove regfile code&data for UMS suspend/resume 2015-02-27 18:10:39 +01:00