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8325a09dd0
Currently, we only bump the inactive LRU of an object when we bind into the GTT for a page-fault. As the object may be used many times before its mapping is zapped, we do not mark it as active as frequently as we should. Userspace should be calling set-to-GTT-domain before each pointer deference (for synchronous access) and so is a good place to mark the buffer as active. Marking the buffer as recently used places it at the end of the inactive eviction queue, though still before anything with outstanding rendering. This reduces the likelihood of evicting a buffer that is going to be used again by the CPU in the near future. This way we can hopefully avoid to kick out upload buffers right before we use them on the gpu. Note that we need to check that the object is not active or pinned, for otherwise we create havoc on the active/pinned lists, which also use obj->mm_list. The active lists are sorted by and evicted in last GPU rendering order, access by the CPU to a still active buffer therefore does not affect its eviction ordering. Pinned objects are currently excluded from eviction, therefore the only list that we need to bump for GTT access by the CPU is the inactive list. Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> [danvet: Added further explanations to the commit message as discussed on irc.] Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> |
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| .. | ||
| dvo_ch7xxx.c | ||
| dvo_ch7017.c | ||
| dvo_ivch.c | ||
| dvo_sil164.c | ||
| dvo_tfp410.c | ||
| dvo.h | ||
| i915_debugfs.c | ||
| i915_dma.c | ||
| i915_drv.c | ||
| i915_drv.h | ||
| i915_gem_debug.c | ||
| i915_gem_evict.c | ||
| i915_gem_execbuffer.c | ||
| i915_gem_gtt.c | ||
| i915_gem_tiling.c | ||
| i915_gem.c | ||
| i915_ioc32.c | ||
| i915_irq.c | ||
| i915_reg.h | ||
| i915_suspend.c | ||
| i915_sysfs.c | ||
| i915_trace_points.c | ||
| i915_trace.h | ||
| intel_acpi.c | ||
| intel_bios.c | ||
| intel_bios.h | ||
| intel_crt.c | ||
| intel_display.c | ||
| intel_dp.c | ||
| intel_drv.h | ||
| intel_dvo.c | ||
| intel_fb.c | ||
| intel_hdmi.c | ||
| intel_i2c.c | ||
| intel_lvds.c | ||
| intel_modes.c | ||
| intel_opregion.c | ||
| intel_overlay.c | ||
| intel_panel.c | ||
| intel_pm.c | ||
| intel_ringbuffer.c | ||
| intel_ringbuffer.h | ||
| intel_sdvo_regs.h | ||
| intel_sdvo.c | ||
| intel_sprite.c | ||
| intel_tv.c | ||
| Makefile | ||