From 526682e9fabf22e82a02383e8f864a7330b73b25 Mon Sep 17 00:00:00 2001 From: Paulo Zanoni Date: Fri, 24 May 2013 11:59:18 -0300 Subject: [PATCH] drm/i915: add haswell_update_sprite_wm MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit On Haswell, whenever we change the sprites we need to completely recalculate all the watermarks, because the sprites are one of the parameters to the LP watermarks, so a change on the sprites may trigger a change on which LP levels are enabled. So on this commit we store all the parameters we need to store for proper recalculation of the Haswell WMs and then call haswell_update_wm. Notice that for now our haswell_update_wm function is not really using these parameters we're storing, but on the next commits we'll use these parameters. Signed-off-by: Paulo Zanoni Reviewed-by: Ville Syrjälä Signed-off-by: Daniel Vetter --- drivers/gpu/drm/i915/intel_drv.h | 12 ++++++++++++ drivers/gpu/drm/i915/intel_pm.c | 23 ++++++++++++++++++++++- 2 files changed, 34 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h index 3e6e5e7b089f..bb4c50b57085 100644 --- a/drivers/gpu/drm/i915/intel_drv.h +++ b/drivers/gpu/drm/i915/intel_drv.h @@ -326,6 +326,18 @@ struct intel_plane { unsigned int crtc_w, crtc_h; uint32_t src_x, src_y; uint32_t src_w, src_h; + + /* Since we need to change the watermarks before/after + * enabling/disabling the planes, we need to store the parameters here + * as the other pieces of the struct may not reflect the values we want + * for the watermark calculations. Currently only Haswell uses this. + */ + struct { + bool enable; + uint8_t bytes_per_pixel; + uint32_t horiz_pixels; + } wm; + void (*update_plane)(struct drm_plane *plane, struct drm_framebuffer *fb, struct drm_i915_gem_object *obj, diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c index 3515efd049dd..9328ed98ce2f 100644 --- a/drivers/gpu/drm/i915/intel_pm.c +++ b/drivers/gpu/drm/i915/intel_pm.c @@ -2118,6 +2118,26 @@ static void haswell_update_wm(struct drm_device *dev) sandybridge_update_wm(dev); } +static void haswell_update_sprite_wm(struct drm_device *dev, int pipe, + uint32_t sprite_width, int pixel_size, + bool enable) +{ + struct drm_plane *plane; + + list_for_each_entry(plane, &dev->mode_config.plane_list, head) { + struct intel_plane *intel_plane = to_intel_plane(plane); + + if (intel_plane->pipe == pipe) { + intel_plane->wm.enable = enable; + intel_plane->wm.horiz_pixels = sprite_width + 1; + intel_plane->wm.bytes_per_pixel = pixel_size; + break; + } + } + + haswell_update_wm(dev); +} + static bool sandybridge_compute_sprite_wm(struct drm_device *dev, int plane, uint32_t sprite_width, int pixel_size, @@ -4631,7 +4651,8 @@ void intel_init_pm(struct drm_device *dev) } else if (IS_HASWELL(dev)) { if (I915_READ64(MCH_SSKPD)) { dev_priv->display.update_wm = haswell_update_wm; - dev_priv->display.update_sprite_wm = sandybridge_update_sprite_wm; + dev_priv->display.update_sprite_wm = + haswell_update_sprite_wm; } else { DRM_DEBUG_KMS("Failed to read display plane latency. " "Disable CxSR\n"); -- 2.11.0