From 6484ec24fdc5c9713c127fae89c04fe07f21f152 Mon Sep 17 00:00:00 2001 From: Chris Wilson Date: Tue, 8 Jan 2013 11:02:57 +0000 Subject: [PATCH] drm/i915: Only run idle processing from i915_gem_retire_requests_worker commit 725a5b54028916cd2511a251c5b5b13d1715addc upstream. When adding the fb idle detection to mark-inactive, it was forgotten that userspace can drive the processing of retire-requests. We assumed that it would be principally driven by the retire requests worker, running once every second whilst active and so we would get the deferred timer for free. Instead we spend too many CPU cycles reclocking the LVDS preventing real work from being done. Signed-off-by: Chris Wilson Reported-and-tested-by: Alexander Lam Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=58843 Reviewed-by: Rodrigo Vivi Signed-off-by: Daniel Vetter Signed-off-by: Greg Kroah-Hartman --- drivers/gpu/drm/i915/i915_gem.c | 3 --- drivers/gpu/drm/i915/intel_display.c | 12 +++--------- drivers/gpu/drm/i915/intel_drv.h | 3 +-- 3 files changed, 4 insertions(+), 14 deletions(-) diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c index 8febea6daa08..3a4199f4177a 100644 --- a/drivers/gpu/drm/i915/i915_gem.c +++ b/drivers/gpu/drm/i915/i915_gem.c @@ -1918,9 +1918,6 @@ i915_gem_object_move_to_inactive(struct drm_i915_gem_object *obj) BUG_ON(obj->base.write_domain & ~I915_GEM_GPU_DOMAINS); BUG_ON(!obj->active); - if (obj->pin_count) /* are we a framebuffer? */ - intel_mark_fb_idle(obj); - list_move_tail(&obj->mm_list, &dev_priv->mm.inactive_list); list_del_init(&obj->ring_list); diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index da1ad9c80bb5..6dad9575eb28 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -6993,11 +6993,6 @@ void intel_mark_busy(struct drm_device *dev) void intel_mark_idle(struct drm_device *dev) { -} - -void intel_mark_fb_busy(struct drm_i915_gem_object *obj) -{ - struct drm_device *dev = obj->base.dev; struct drm_crtc *crtc; if (!i915_powersave) @@ -7007,12 +7002,11 @@ void intel_mark_fb_busy(struct drm_i915_gem_object *obj) if (!crtc->fb) continue; - if (to_intel_framebuffer(crtc->fb)->obj == obj) - intel_increase_pllclock(crtc); + intel_decrease_pllclock(crtc); } } -void intel_mark_fb_idle(struct drm_i915_gem_object *obj) +void intel_mark_fb_busy(struct drm_i915_gem_object *obj) { struct drm_device *dev = obj->base.dev; struct drm_crtc *crtc; @@ -7025,7 +7019,7 @@ void intel_mark_fb_idle(struct drm_i915_gem_object *obj) continue; if (to_intel_framebuffer(crtc->fb)->obj == obj) - intel_decrease_pllclock(crtc); + intel_increase_pllclock(crtc); } } diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h index afa45a98ef6b..42dd62e22fbb 100644 --- a/drivers/gpu/drm/i915/intel_drv.h +++ b/drivers/gpu/drm/i915/intel_drv.h @@ -440,9 +440,8 @@ extern bool intel_sdvo_init(struct drm_device *dev, uint32_t sdvo_reg, extern void intel_dvo_init(struct drm_device *dev); extern void intel_tv_init(struct drm_device *dev); extern void intel_mark_busy(struct drm_device *dev); -extern void intel_mark_idle(struct drm_device *dev); extern void intel_mark_fb_busy(struct drm_i915_gem_object *obj); -extern void intel_mark_fb_idle(struct drm_i915_gem_object *obj); +extern void intel_mark_idle(struct drm_device *dev); extern bool intel_lvds_init(struct drm_device *dev); extern void intel_dp_init(struct drm_device *dev, int output_reg, enum port port); -- 2.39.5