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f6aca45c06
linux/drivers/gpu/drm/i915
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Ben Widawsky f6aca45c06 drm/i915: Clean up the ring scaling calculations 
This patch attempts to clean up the ring/IA scaling programming in the
following ways.
1. Fix the comment about the DDR frequency. The math is 266MHz, not
133MHz. Formula was right, docs are wrong.

2. Mask the DCLK register since I don't know how it is defined on future
platforms.

3. use mult_frac instead of magic math.

This helps for future platform enabling.

v2: Actually use the right patch. The v1 was a mix of things, none of
which was right. Note that due to rounding, we actually get different
values (slightly higher) for the effective ring frequency.

v3: Use 1.25 instead of 1.33 as the original code did. (Jesse)

CC: Jesse Barnes <jbarnes@virtuousgeek.org>
CC: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Ben Widawsky <ben@bwidawsk.net>
Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2013-10-03 20:01:29 +02:00
..
dvo_ch7xxx.c drm/i915: dvo_ch7xxx: fix vsync polarity setting 2013-07-25 16:10:22 +02:00
dvo_ch7017.c
dvo_ivch.c
dvo_ns2501.c
dvo_sil164.c
dvo_tfp410.c
dvo.h drm/i915: Remove unused mode_fixup() vfunc of struct intel_dvo_dev_ops 2013-09-05 21:39:59 +02:00
i915_debugfs.c drm/i915: Calculate PSR register offsets from base + gen 2013-10-01 07:45:12 +02:00
i915_dma.c drm/i915: Delay the release of the forcewake by a jiffie 2013-10-01 07:45:13 +02:00
i915_drv.c drm/i915: fix typo s/PatherPoint/PantherPoint/ 2013-10-01 14:36:18 +02:00
i915_drv.h drm/i915: Show WT caching in debugfs 2013-10-01 07:45:23 +02:00
i915_gem_context.c drm/i915: Convert active API to VMA 2013-10-01 07:45:21 +02:00
i915_gem_debug.c drm/i915: Fix #endif comment 2013-08-09 10:45:52 +02:00
i915_gem_dmabuf.c drm/i915: Pin pages whilst mapping the dma-buf 2013-09-03 19:17:58 +02:00
i915_gem_evict.c drm/i915: trace vm eviction instead of everything 2013-10-01 07:45:20 +02:00
i915_gem_execbuffer.c drm/i915: Convert active API to VMA 2013-10-01 07:45:21 +02:00
i915_gem_gtt.c drm/i915: Use kcalloc more 2013-10-01 07:45:01 +02:00
i915_gem_stolen.c Linux 3.12-rc2 2013-09-24 09:32:53 +02:00
i915_gem_tiling.c drm/i915: Use kcalloc more 2013-10-01 07:45:01 +02:00
i915_gem.c drm/i915: Add a tracepoint for using a semaphore 2013-10-01 07:45:24 +02:00
i915_gpu_error.c drm/i915: Show WT caching in debugfs 2013-10-01 07:45:23 +02:00
i915_ioc32.c
i915_irq.c drm/i915: Move the conditional seqno query into the tracepoint 2013-10-01 07:45:22 +02:00
i915_reg.h drm/i915/vlv: use correct units for rc6 residency v2 2013-10-01 07:45:44 +02:00
i915_suspend.c drm/i915: don't save/restore LBB on Gen5+ 2013-09-13 11:40:45 +02:00
i915_sysfs.c drm/i915/vlv: use correct units for rc6 residency v2 2013-10-01 07:45:44 +02:00
i915_trace_points.c
i915_trace.h drm/i915: Add a tracepoint for using a semaphore 2013-10-01 07:45:24 +02:00
i915_ums.c drm/i915: scrap register address storage 2013-06-10 19:54:14 +02:00
intel_acpi.c i915: fix ACPI _DSM warning 2013-08-05 19:04:05 +02:00
intel_bios.c drm/i915: Rip out SUPPORTS_EDP 2013-10-01 07:45:07 +02:00
intel_bios.h drm/i915: use the HDMI DDI buffer translations from VBT 2013-10-01 07:45:04 +02:00
intel_crt.c drm/i915: destroy connector sysfs files earlier 2013-10-01 07:45:48 +02:00
intel_ddi.c drm/i915: Add HSW CRT output readout support 2013-10-01 07:45:15 +02:00
intel_display.c drm/i915: Don't populate pipe_src_{w,h} multiple times 2013-10-03 20:01:28 +02:00
intel_dp.c drm/i915: destroy connector sysfs files earlier 2013-10-01 07:45:48 +02:00
intel_drv.h drm/i915: Make intel_resume_power_well() static 2013-10-01 07:45:48 +02:00
intel_dsi_cmd.c drm/i915/dsi: s/size_t/int/ 2013-09-04 17:34:51 +02:00
intel_dsi_cmd.h drm/i915/dsi: s/size_t/int/ 2013-09-04 17:34:51 +02:00
intel_dsi_pll.c drm/i915: Use adjusted_mode in DSI PLL calculations 2013-09-16 23:36:38 +02:00
intel_dsi.c drm/i915: destroy connector sysfs files earlier 2013-10-01 07:45:48 +02:00
intel_dsi.h drm/i915: add VLV DSI PLL Calculations 2013-09-04 17:34:48 +02:00
intel_dvo.c drm/i915: destroy connector sysfs files earlier 2013-10-01 07:45:48 +02:00
intel_fb.c drm/i915: make intel_crtc_fb_gamma_{set, get} static 2013-10-01 07:45:18 +02:00
intel_hdmi.c drm/i915: destroy connector sysfs files earlier 2013-10-01 07:45:48 +02:00
intel_i2c.c drm/i915: Program GMBUS Frequency based on the CDCLK for VLV. 2013-10-01 07:45:41 +02:00
intel_lvds.c drm/i915: destroy connector sysfs files earlier 2013-10-01 07:45:48 +02:00
intel_modes.c drm/i915: Add "Automatic" mode for the "Broadcast RGB" property 2013-01-20 13:09:44 +01:00
intel_opregion.c Linux 3.12-rc2 2013-09-24 09:32:53 +02:00
intel_overlay.c drm/i915: use pointer = k[cmz...]alloc(sizeof(*pointer), ...) pattern 2013-10-01 07:45:01 +02:00
intel_panel.c drm/i915/vlv: hack to init backlight regs if BIOS fails to do so v2 2013-10-01 07:45:41 +02:00
intel_pm.c drm/i915: Clean up the ring scaling calculations 2013-10-03 20:01:29 +02:00
intel_ringbuffer.c drm/i915: s/HAS_L3_GPU_CACHE/HAS_L3_DPF 2013-09-19 20:41:00 +02:00
intel_ringbuffer.h drm/i915: Write RING_TAIL once per-request 2013-09-10 15:35:58 +02:00
intel_sdvo_regs.h
intel_sdvo.c drm/i915: destroy connector sysfs files earlier 2013-10-01 07:45:48 +02:00
intel_sideband.c drm/i915: Add additional pipe parameter for vlv_dpio_read and vlv_dpio_write. v2 2013-09-05 15:04:36 +02:00
intel_sprite.c drm/i915: use pointer = k[cmz...]alloc(sizeof(*pointer), ...) pattern 2013-10-01 07:45:01 +02:00
intel_tv.c drm/i915: destroy connector sysfs files earlier 2013-10-01 07:45:48 +02:00
intel_uncore.c drm/i915: Delay the release of the forcewake by a jiffie 2013-10-01 07:45:13 +02:00
Makefile drm/i915: add VLV DSI PLL Calculations 2013-09-04 17:34:48 +02:00