From 2ff8fde1ea0992dfd735dce94f8cae2aacff8e5c Mon Sep 17 00:00:00 2001 From: Matt Roper Date: Tue, 8 Jul 2014 07:50:07 -0700 Subject: [PATCH] drm/i915: Make use of intel_fb_obj() (v2) This should hopefully simplify the display code slightly and also solves at least one mistake in intel_pipe_set_base() where to_intel_framebuffer(fb)->obj is referenced during local variable initialization, before 'if (!fb)' gets checked. Potential uses of this macro were identified via the following Coccinelle patch: @@ expression E; @@ * to_intel_framebuffer(E)->obj @@ expression E; identifier I; @@ I = to_intel_framebuffer(E); ... * I->obj v2: Rewrite some NULL tests in terms of the obj rather than the fb. Also add a WARN() if trying to pageflip with a disabled primary plane. [Suggested by Chris Wilson] Signed-off-by: Matt Roper Reviewed-by: Chris Wilson Signed-off-by: Daniel Vetter --- drivers/gpu/drm/i915/intel_display.c | 84 +++++++++++++--------------- drivers/gpu/drm/i915/intel_dp.c | 3 +- drivers/gpu/drm/i915/intel_pm.c | 24 +++----- 3 files changed, 48 insertions(+), 63 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index 8e738d4315a8..71430a05ba89 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -2356,7 +2356,7 @@ static void intel_find_plane_obj(struct intel_crtc *intel_crtc, struct drm_device *dev = intel_crtc->base.dev; struct drm_crtc *c; struct intel_crtc *i; - struct intel_framebuffer *fb; + struct drm_i915_gem_object *obj; if (!intel_crtc->base.primary->fb) return; @@ -2377,14 +2377,17 @@ static void intel_find_plane_obj(struct intel_crtc *intel_crtc, if (c == &intel_crtc->base) continue; - if (!i->active || !c->primary->fb) + if (!i->active) + continue; + + obj = intel_fb_obj(c->primary->fb); + if (obj == NULL) continue; - fb = to_intel_framebuffer(c->primary->fb); - if (i915_gem_obj_ggtt_offset(fb->obj) == plane_config->base) { + if (i915_gem_obj_ggtt_offset(obj) == plane_config->base) { drm_framebuffer_reference(c->primary->fb); intel_crtc->base.primary->fb = c->primary->fb; - fb->obj->frontbuffer_bits |= INTEL_FRONTBUFFER_PRIMARY(intel_crtc->pipe); + obj->frontbuffer_bits |= INTEL_FRONTBUFFER_PRIMARY(intel_crtc->pipe); break; } } @@ -2397,16 +2400,12 @@ static void i9xx_update_primary_plane(struct drm_crtc *crtc, struct drm_device *dev = crtc->dev; struct drm_i915_private *dev_priv = dev->dev_private; struct intel_crtc *intel_crtc = to_intel_crtc(crtc); - struct intel_framebuffer *intel_fb; - struct drm_i915_gem_object *obj; + struct drm_i915_gem_object *obj = intel_fb_obj(fb); int plane = intel_crtc->plane; unsigned long linear_offset; u32 dspcntr; u32 reg; - intel_fb = to_intel_framebuffer(fb); - obj = intel_fb->obj; - reg = DSPCNTR(plane); dspcntr = I915_READ(reg); /* Mask out pixel format bits in case we change it */ @@ -2487,16 +2486,12 @@ static void ironlake_update_primary_plane(struct drm_crtc *crtc, struct drm_device *dev = crtc->dev; struct drm_i915_private *dev_priv = dev->dev_private; struct intel_crtc *intel_crtc = to_intel_crtc(crtc); - struct intel_framebuffer *intel_fb; - struct drm_i915_gem_object *obj; + struct drm_i915_gem_object *obj = intel_fb_obj(fb); int plane = intel_crtc->plane; unsigned long linear_offset; u32 dspcntr; u32 reg; - intel_fb = to_intel_framebuffer(fb); - obj = intel_fb->obj; - reg = DSPCNTR(plane); dspcntr = I915_READ(reg); /* Mask out pixel format bits in case we change it */ @@ -2627,7 +2622,7 @@ void intel_display_handle_reset(struct drm_device *dev) static int intel_finish_fb(struct drm_framebuffer *old_fb) { - struct drm_i915_gem_object *obj = to_intel_framebuffer(old_fb)->obj; + struct drm_i915_gem_object *obj = intel_fb_obj(old_fb); struct drm_i915_private *dev_priv = obj->base.dev->dev_private; bool was_interruptible = dev_priv->mm.interruptible; int ret; @@ -2674,9 +2669,9 @@ intel_pipe_set_base(struct drm_crtc *crtc, int x, int y, struct drm_i915_private *dev_priv = dev->dev_private; struct intel_crtc *intel_crtc = to_intel_crtc(crtc); enum pipe pipe = intel_crtc->pipe; - struct drm_framebuffer *old_fb; - struct drm_i915_gem_object *obj = to_intel_framebuffer(fb)->obj; - struct drm_i915_gem_object *old_obj; + struct drm_framebuffer *old_fb = crtc->primary->fb; + struct drm_i915_gem_object *obj = intel_fb_obj(fb); + struct drm_i915_gem_object *old_obj = intel_fb_obj(old_fb); int ret; if (intel_crtc_has_pending_flip(crtc)) { @@ -2697,9 +2692,6 @@ intel_pipe_set_base(struct drm_crtc *crtc, int x, int y, return -EINVAL; } - old_fb = crtc->primary->fb; - old_obj = old_fb ? to_intel_framebuffer(old_fb)->obj : NULL; - mutex_lock(&dev->struct_mutex); ret = intel_pin_and_fence_fb_obj(dev, obj, NULL); if (ret == 0) @@ -2755,7 +2747,7 @@ intel_pipe_set_base(struct drm_crtc *crtc, int x, int y, if (intel_crtc->active && old_fb != fb) intel_wait_for_vblank(dev, intel_crtc->pipe); mutex_lock(&dev->struct_mutex); - intel_unpin_fb_obj(to_intel_framebuffer(old_fb)->obj); + intel_unpin_fb_obj(old_obj); mutex_unlock(&dev->struct_mutex); } @@ -4929,7 +4921,7 @@ static void intel_crtc_disable(struct drm_crtc *crtc) struct drm_device *dev = crtc->dev; struct drm_connector *connector; struct drm_i915_private *dev_priv = dev->dev_private; - struct drm_i915_gem_object *old_obj; + struct drm_i915_gem_object *old_obj = intel_fb_obj(crtc->primary->fb); enum pipe pipe = to_intel_crtc(crtc)->pipe; /* crtc should still be enabled when we disable it. */ @@ -4944,7 +4936,6 @@ static void intel_crtc_disable(struct drm_crtc *crtc) assert_pipe_disabled(dev->dev_private, pipe); if (crtc->primary->fb) { - old_obj = to_intel_framebuffer(crtc->primary->fb)->obj; mutex_lock(&dev->struct_mutex); intel_unpin_fb_obj(old_obj); i915_gem_track_fb(old_obj, NULL, @@ -9586,7 +9577,7 @@ static int intel_crtc_page_flip(struct drm_crtc *crtc, struct drm_device *dev = crtc->dev; struct drm_i915_private *dev_priv = dev->dev_private; struct drm_framebuffer *old_fb = crtc->primary->fb; - struct drm_i915_gem_object *obj = to_intel_framebuffer(fb)->obj; + struct drm_i915_gem_object *obj = intel_fb_obj(fb); struct intel_crtc *intel_crtc = to_intel_crtc(crtc); enum pipe pipe = intel_crtc->pipe; struct intel_unpin_work *work; @@ -9594,6 +9585,14 @@ static int intel_crtc_page_flip(struct drm_crtc *crtc, unsigned long flags; int ret; + /* + * drm_mode_page_flip_ioctl() should already catch this, but double + * check to be safe. In the future we may enable pageflipping from + * a disabled primary plane. + */ + if (WARN_ON(intel_fb_obj(old_fb) == NULL)) + return -EBUSY; + /* Can't change pixel format via MI display flips. */ if (fb->pixel_format != crtc->primary->fb->pixel_format) return -EINVAL; @@ -9616,7 +9615,7 @@ static int intel_crtc_page_flip(struct drm_crtc *crtc, work->event = event; work->crtc = crtc; - work->old_fb_obj = to_intel_framebuffer(old_fb)->obj; + work->old_fb_obj = intel_fb_obj(old_fb); INIT_WORK(&work->work, intel_unpin_work_fn); ret = drm_crtc_vblank_get(crtc); @@ -10758,10 +10757,9 @@ static int __intel_set_mode(struct drm_crtc *crtc, * on the DPLL. */ for_each_intel_crtc_masked(dev, modeset_pipes, intel_crtc) { - struct drm_framebuffer *old_fb; - struct drm_i915_gem_object *old_obj = NULL; - struct drm_i915_gem_object *obj = - to_intel_framebuffer(fb)->obj; + struct drm_framebuffer *old_fb = crtc->primary->fb; + struct drm_i915_gem_object *old_obj = intel_fb_obj(old_fb); + struct drm_i915_gem_object *obj = intel_fb_obj(fb); mutex_lock(&dev->struct_mutex); ret = intel_pin_and_fence_fb_obj(dev, @@ -10772,11 +10770,8 @@ static int __intel_set_mode(struct drm_crtc *crtc, mutex_unlock(&dev->struct_mutex); goto done; } - old_fb = crtc->primary->fb; - if (old_fb) { - old_obj = to_intel_framebuffer(old_fb)->obj; + if (old_fb) intel_unpin_fb_obj(old_obj); - } i915_gem_track_fb(old_obj, obj, INTEL_FRONTBUFFER_PRIMARY(intel_crtc->pipe)); mutex_unlock(&dev->struct_mutex); @@ -11394,9 +11389,9 @@ intel_primary_plane_disable(struct drm_plane *plane) intel_disable_primary_hw_plane(dev_priv, intel_plane->plane, intel_plane->pipe); disable_unpin: - i915_gem_track_fb(to_intel_framebuffer(plane->fb)->obj, NULL, + i915_gem_track_fb(intel_fb_obj(plane->fb), NULL, INTEL_FRONTBUFFER_PRIMARY(intel_crtc->pipe)); - intel_unpin_fb_obj(to_intel_framebuffer(plane->fb)->obj); + intel_unpin_fb_obj(intel_fb_obj(plane->fb)); plane->fb = NULL; return 0; @@ -11413,7 +11408,8 @@ intel_primary_plane_setplane(struct drm_plane *plane, struct drm_crtc *crtc, struct drm_i915_private *dev_priv = dev->dev_private; struct intel_crtc *intel_crtc = to_intel_crtc(crtc); struct intel_plane *intel_plane = to_intel_plane(plane); - struct drm_i915_gem_object *obj, *old_obj = NULL; + struct drm_i915_gem_object *obj = intel_fb_obj(fb); + struct drm_i915_gem_object *old_obj = intel_fb_obj(plane->fb); struct drm_rect dest = { /* integer pixels */ .x1 = crtc_x, @@ -11445,10 +11441,6 @@ intel_primary_plane_setplane(struct drm_plane *plane, struct drm_crtc *crtc, if (ret) return ret; - if (plane->fb) - old_obj = to_intel_framebuffer(plane->fb)->obj; - obj = to_intel_framebuffer(fb)->obj; - /* * If the CRTC isn't enabled, we're just pinning the framebuffer, * updating the fb pointer, and returning without touching the @@ -12945,7 +12937,7 @@ void intel_modeset_setup_hw_state(struct drm_device *dev, void intel_modeset_gem_init(struct drm_device *dev) { struct drm_crtc *c; - struct intel_framebuffer *fb; + struct drm_i915_gem_object *obj; mutex_lock(&dev->struct_mutex); intel_init_gt_powersave(dev); @@ -12962,11 +12954,11 @@ void intel_modeset_gem_init(struct drm_device *dev) */ mutex_lock(&dev->struct_mutex); for_each_crtc(dev, c) { - if (!c->primary->fb) + obj = intel_fb_obj(c->primary->fb); + if (obj == NULL) continue; - fb = to_intel_framebuffer(c->primary->fb); - if (intel_pin_and_fence_fb_obj(dev, fb->obj, NULL)) { + if (intel_pin_and_fence_fb_obj(dev, obj, NULL)) { DRM_ERROR("failed to pin boot fb on pipe %d\n", to_intel_crtc(c)->pipe); drm_framebuffer_unreference(c->primary->fb); diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c index e0f1bd125d85..3ca6c7c77e05 100644 --- a/drivers/gpu/drm/i915/intel_dp.c +++ b/drivers/gpu/drm/i915/intel_dp.c @@ -1752,7 +1752,7 @@ static bool intel_edp_psr_match_conditions(struct intel_dp *intel_dp) struct drm_i915_private *dev_priv = dev->dev_private; struct drm_crtc *crtc = dig_port->base.base.crtc; struct intel_crtc *intel_crtc = to_intel_crtc(crtc); - struct drm_i915_gem_object *obj = to_intel_framebuffer(crtc->primary->fb)->obj; + struct drm_i915_gem_object *obj = intel_fb_obj(crtc->primary->fb); struct intel_encoder *intel_encoder = &dp_to_dig_port(intel_dp)->base; dev_priv->psr.source_ok = false; @@ -1785,7 +1785,6 @@ static bool intel_edp_psr_match_conditions(struct intel_dp *intel_dp) return false; } - obj = to_intel_framebuffer(crtc->primary->fb)->obj; if (obj->tiling_mode != I915_TILING_X || obj->fence_reg == I915_FENCE_REG_NONE) { DRM_DEBUG_KMS("PSR condition failed: fb not tiled or fenced\n"); diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c index d1af6419ec78..19c5c26badae 100644 --- a/drivers/gpu/drm/i915/intel_pm.c +++ b/drivers/gpu/drm/i915/intel_pm.c @@ -93,8 +93,7 @@ static void i8xx_enable_fbc(struct drm_crtc *crtc) struct drm_device *dev = crtc->dev; struct drm_i915_private *dev_priv = dev->dev_private; struct drm_framebuffer *fb = crtc->primary->fb; - struct intel_framebuffer *intel_fb = to_intel_framebuffer(fb); - struct drm_i915_gem_object *obj = intel_fb->obj; + struct drm_i915_gem_object *obj = intel_fb_obj(fb); struct intel_crtc *intel_crtc = to_intel_crtc(crtc); int cfb_pitch; int i; @@ -150,8 +149,7 @@ static void g4x_enable_fbc(struct drm_crtc *crtc) struct drm_device *dev = crtc->dev; struct drm_i915_private *dev_priv = dev->dev_private; struct drm_framebuffer *fb = crtc->primary->fb; - struct intel_framebuffer *intel_fb = to_intel_framebuffer(fb); - struct drm_i915_gem_object *obj = intel_fb->obj; + struct drm_i915_gem_object *obj = intel_fb_obj(fb); struct intel_crtc *intel_crtc = to_intel_crtc(crtc); u32 dpfc_ctl; @@ -222,8 +220,7 @@ static void ironlake_enable_fbc(struct drm_crtc *crtc) struct drm_device *dev = crtc->dev; struct drm_i915_private *dev_priv = dev->dev_private; struct drm_framebuffer *fb = crtc->primary->fb; - struct intel_framebuffer *intel_fb = to_intel_framebuffer(fb); - struct drm_i915_gem_object *obj = intel_fb->obj; + struct drm_i915_gem_object *obj = intel_fb_obj(fb); struct intel_crtc *intel_crtc = to_intel_crtc(crtc); u32 dpfc_ctl; @@ -289,8 +286,7 @@ static void gen7_enable_fbc(struct drm_crtc *crtc) struct drm_device *dev = crtc->dev; struct drm_i915_private *dev_priv = dev->dev_private; struct drm_framebuffer *fb = crtc->primary->fb; - struct intel_framebuffer *intel_fb = to_intel_framebuffer(fb); - struct drm_i915_gem_object *obj = intel_fb->obj; + struct drm_i915_gem_object *obj = intel_fb_obj(fb); struct intel_crtc *intel_crtc = to_intel_crtc(crtc); u32 dpfc_ctl; @@ -485,7 +481,6 @@ void intel_update_fbc(struct drm_device *dev) struct drm_crtc *crtc = NULL, *tmp_crtc; struct intel_crtc *intel_crtc; struct drm_framebuffer *fb; - struct intel_framebuffer *intel_fb; struct drm_i915_gem_object *obj; const struct drm_display_mode *adjusted_mode; unsigned int max_width, max_height; @@ -530,8 +525,7 @@ void intel_update_fbc(struct drm_device *dev) intel_crtc = to_intel_crtc(crtc); fb = crtc->primary->fb; - intel_fb = to_intel_framebuffer(fb); - obj = intel_fb->obj; + obj = intel_fb_obj(fb); adjusted_mode = &intel_crtc->config.adjusted_mode; if (i915.enable_fbc < 0) { @@ -589,7 +583,7 @@ void intel_update_fbc(struct drm_device *dev) if (in_dbg_master()) goto out_disable; - if (i915_gem_stolen_setup_compression(dev, intel_fb->obj->base.size, + if (i915_gem_stolen_setup_compression(dev, obj->base.size, drm_format_plane_cpp(fb->pixel_format, 0))) { if (set_no_fbc_reason(dev_priv, FBC_STOLEN_TOO_SMALL)) DRM_DEBUG_KMS("framebuffer too large, disabling compression\n"); @@ -1599,12 +1593,12 @@ static void i9xx_update_wm(struct drm_crtc *unused_crtc) DRM_DEBUG_KMS("FIFO watermarks - A: %d, B: %d\n", planea_wm, planeb_wm); if (IS_I915GM(dev) && enabled) { - struct intel_framebuffer *fb; + struct drm_i915_gem_object *obj; - fb = to_intel_framebuffer(enabled->primary->fb); + obj = intel_fb_obj(enabled->primary->fb); /* self-refresh seems busted with untiled */ - if (fb->obj->tiling_mode == I915_TILING_NONE) + if (obj->tiling_mode == I915_TILING_NONE) enabled = NULL; } -- 2.39.5