linux_dsm_epyc7002/drivers/gpu/drm/i915
Chris Wilson 2fedbff948 drm/i915: Add I915_GEM_PARAM_HAS_SEMAPHORES
Userspace tries to estimate the cost of ring switching based on whether
the GPU and GEM supports semaphores. (If we have multiple rings and no
semaphores, userspace assumes that the cost of switching rings between
batches is exorbitant and will endeavour to keep the next batch on the
active ring - as a coarse approximation to tracking both destination and
source surfaces.) Currently userspace has to guess whether semaphores
exist based on the chipset generation and the module parameter,
i915.semaphores. This is a crude and inaccurate guess as the defaults
internally depend upon other chipset features being enabled or disabled,
nor does it extend well into the future. By exporting a HAS_SEMAPHORES
parameter, we can easily query the driver and obtain an accurate answer.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2012-08-08 14:29:12 +02:00
..
dvo_ch7xxx.c Drivers: i915: Fix all space related issues. 2011-09-19 18:01:47 -07:00
dvo_ch7017.c Drivers: i915: Fix all space related issues. 2011-09-19 18:01:47 -07:00
dvo_ivch.c Drivers: i915: Fix all space related issues. 2011-09-19 18:01:47 -07:00
dvo_ns2501.c drm/i915: Support for ns2501-DVO 2012-07-25 18:23:48 +02:00
dvo_sil164.c Drivers: i915: Fix all space related issues. 2011-09-19 18:01:47 -07:00
dvo_tfp410.c Drivers: i915: Fix all space related issues. 2011-09-19 18:01:47 -07:00
dvo.h drm/i915: Support for ns2501-DVO 2012-07-25 18:23:48 +02:00
i915_debugfs.c drm/i915: Remove the defunct flushing list 2012-07-25 18:23:52 +02:00
i915_dma.c drm/i915: Add I915_GEM_PARAM_HAS_SEMAPHORES 2012-08-08 14:29:12 +02:00
i915_drv.c drm/i915: create VLV_DSIPLAY_BASE #define 2012-07-25 18:23:50 +02:00
i915_drv.h drm/i915: rip out sanitize_pm again 2012-07-26 13:37:13 +02:00
i915_gem_context.c drm/i915: Add contexts for HSW 2012-07-25 18:23:56 +02:00
i915_gem_debug.c drm/i915: stop using dev->agp->base 2012-06-12 22:18:06 +02:00
i915_gem_dmabuf.c i915: add dma-buf vmap support for exporting vmapped buffer 2012-05-31 14:13:57 +01:00
i915_gem_evict.c drm/i915: Segregate memory domains in the GTT using coloring 2012-07-26 12:56:25 +02:00
i915_gem_execbuffer.c drm/i915: Avoid concurrent access when marking the device as idle/busy 2012-07-25 18:23:56 +02:00
i915_gem_gtt.c drm/i915: Segregate memory domains in the GTT using coloring 2012-07-26 12:56:25 +02:00
i915_gem_stolen.c drm/i915: Split the stolen handling for GEM out of i915_dma.c 2012-05-03 11:18:11 +02:00
i915_gem_tiling.c drm/i915: Only the zap the VMA after updating the tiling parameters 2012-05-03 11:18:07 +02:00
i915_gem.c drm/i915: Export ability of changing cache levels to userspace 2012-07-26 12:56:25 +02:00
i915_ioc32.c drm/i915: [sparse] trivial sparse fixes 2012-04-18 10:34:49 +02:00
i915_irq.c drm/i915: Macro to determine DPF support 2012-07-25 18:23:56 +02:00
i915_reg.h drm/i915: Add contexts for HSW 2012-07-25 18:23:56 +02:00
i915_suspend.c drm/i915: wrap up gt powersave enabling functions 2012-06-25 21:07:03 +02:00
i915_sysfs.c drm/i915: Macro to determine DPF support 2012-07-25 18:23:56 +02:00
i915_trace_points.c drm/i915: [sparse] trivial sparse fixes 2012-04-18 10:34:49 +02:00
i915_trace.h drm/i915: improve i915_wait_request_begin trace 2012-05-25 09:55:15 +02:00
intel_acpi.c drm/i915: [sparse] trivial sparse fixes 2012-04-18 10:34:49 +02:00
intel_bios.c drm/i915/bios: cleanup return type of intel_parse_bios() 2012-06-27 10:17:51 +01:00
intel_bios.h drm/i915/bios: cleanup return type of intel_parse_bios() 2012-06-27 10:17:51 +01:00
intel_crt.c drm/i915: add inte_crt->adpa_reg 2012-07-25 18:23:50 +02:00
intel_ddi.c drm/i915: add port parameter to intel_hdmi_init 2012-07-25 18:23:47 +02:00
intel_display.c drm/i915: prevent possible pin leak on error path 2012-07-26 22:32:29 +02:00
intel_dp.c drm/i915: add port field to struct intel_dp and use it 2012-07-25 18:23:48 +02:00
intel_drv.h drm/i915: rip out sanitize_pm again 2012-07-26 13:37:13 +02:00
intel_dvo.c drm/i915: Support for ns2501-DVO 2012-07-25 18:23:48 +02:00
intel_fb.c drm/i915: Zero initialize mode_cmd 2012-07-05 13:27:58 +02:00
intel_hdmi.c drm/i915: add port parameter to intel_hdmi_init 2012-07-25 18:23:47 +02:00
intel_i2c.c drm/i915: be more careful when returning -ENXIO in gmbus transfer 2012-05-21 21:04:21 +02:00
intel_lvds.c drm/i915: simplify possible_clones computation 2012-07-25 18:23:46 +02:00
intel_modes.c drm/i915: kill intel_ddc_probe 2012-07-20 12:21:39 +02:00
intel_opregion.c drm/i915: [sparse] __iomem fixes for opregion 2012-05-03 11:18:00 +02:00
intel_overlay.c drm/i915: s/i915_wait_request/i915_wait_seqno/g 2012-05-25 14:18:42 +02:00
intel_panel.c drm/i915: don't forget the PCH backlight registers 2012-07-20 12:21:41 +02:00
intel_pm.c drm/i915: rip out sanitize_pm again 2012-07-26 13:37:13 +02:00
intel_ringbuffer.c drm/i915: Only apply the SNB pipe control w/a to gen6 2012-08-08 09:34:32 +02:00
intel_ringbuffer.h drm/i915: Split i915_gem_flush_ring() into seperate invalidate/flush funcs 2012-07-25 18:23:55 +02:00
intel_sdvo_regs.h drm/i915: properly handle interlaced bit for sdvo dtd conversion 2012-05-24 17:53:52 +02:00
intel_sdvo.c drm/i915: simplify possible_clones computation 2012-07-25 18:23:46 +02:00
intel_sprite.c drm/i915: mask tiled bit when updating ILK sprites 2012-07-20 12:21:40 +02:00
intel_tv.c drm/i915: simplify possible_clones computation 2012-07-25 18:23:46 +02:00
Makefile drm/i915: Support for ns2501-DVO 2012-07-25 18:23:48 +02:00