From: Ville Syrjälä Date: Thu, 10 Feb 2022 06:23:59 +0000 (+0200) Subject: drm/i915: Optimize icl+ universal plane programming X-Git-Tag: v6.1-rc5~176^2~17^2~476 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=f8a005eb89720c913e59707d061a1b7e9c8b3358;p=platform%2Fkernel%2Flinux-starfive.git drm/i915: Optimize icl+ universal plane programming On icl+ all plane registers are armed by PLANE_SURF, so we can move almost everything over into the update_noarm() hook. The PLANE_CTL write has to stay in the icl_update_arm() hook though as it still exhibits the somewhat annoying self-arming behaviour when the plane transitioning from disabled to enabled. We could either do a full split for skl+ vs. icl+, or we could try some other kind of split where we'd eg. keep most things in the skl+ functions and call them from the icl+ functions. I think a full split is probably the cleaner approach since we've anyway accumulated quite a bit of icl+ specific things, so that is what I opted to do. Some i915_update_info stats for tgl: before: after: Updates: 5043 Updates: 5043 | | 1us | 1us | |** |*** 4us |****** 4us |******** |********** |*********** 16us |*********** 16us |********** |**** |* 66us | 66us | | | 262us | 262us | | | 1ms | 1ms | | | 4ms | 4ms | | | 17ms | 17ms | | | Min update: 3494ns Min update: 2983ns Max update: 49491ns Max update: 39986ns Average update: 18031ns Average update: 13423ns Overruns > 100us: 0 Overruns > 100us: 0 Signed-off-by: Ville Syrjälä Link: https://patchwork.freedesktop.org/patch/msgid/20220210062403.18690-2-ville.syrjala@linux.intel.com Reviewed-by: Stanislav Lisovskiy --- diff --git a/drivers/gpu/drm/i915/display/skl_universal_plane.c b/drivers/gpu/drm/i915/display/skl_universal_plane.c index 5299dfe..e9418c4 100644 --- a/drivers/gpu/drm/i915/display/skl_universal_plane.c +++ b/drivers/gpu/drm/i915/display/skl_universal_plane.c @@ -619,6 +619,25 @@ skl_plane_disable_arm(struct intel_plane *plane, spin_lock_irqsave(&dev_priv->uncore.lock, irqflags); + skl_write_plane_wm(plane, crtc_state); + + intel_de_write_fw(dev_priv, PLANE_CTL(pipe, plane_id), 0); + intel_de_write_fw(dev_priv, PLANE_SURF(pipe, plane_id), 0); + + spin_unlock_irqrestore(&dev_priv->uncore.lock, irqflags); +} + +static void +icl_plane_disable_arm(struct intel_plane *plane, + const struct intel_crtc_state *crtc_state) +{ + struct drm_i915_private *dev_priv = to_i915(plane->base.dev); + enum plane_id plane_id = plane->id; + enum pipe pipe = plane->pipe; + unsigned long irqflags; + + spin_lock_irqsave(&dev_priv->uncore.lock, irqflags); + if (icl_is_hdr_plane(dev_priv, plane_id)) intel_de_write_fw(dev_priv, PLANE_CUS_CTL(pipe, plane_id), 0); @@ -1067,7 +1086,7 @@ static void icl_plane_csc_load_black(struct intel_plane *plane) intel_de_write_fw(i915, PLANE_CSC_POSTOFF(pipe, plane_id, 2), 0); } -static int skl_plane_color_plane(const struct intel_plane_state *plane_state) +static int icl_plane_color_plane(const struct intel_plane_state *plane_state) { /* Program the UV plane on planar master */ if (plane_state->planar_linked_plane && !plane_state->planar_slave) @@ -1084,9 +1103,7 @@ skl_plane_update_noarm(struct intel_plane *plane, struct drm_i915_private *dev_priv = to_i915(plane->base.dev); enum plane_id plane_id = plane->id; enum pipe pipe = plane->pipe; - int color_plane = skl_plane_color_plane(plane_state); - u32 stride = skl_plane_stride(plane_state, color_plane); - const struct drm_framebuffer *fb = plane_state->hw.fb; + u32 stride = skl_plane_stride(plane_state, 0); int crtc_x = plane_state->uapi.dst.x1; int crtc_y = plane_state->uapi.dst.y1; u32 src_w = drm_rect_width(&plane_state->uapi.src) >> 16; @@ -1101,12 +1118,109 @@ skl_plane_update_noarm(struct intel_plane *plane, spin_lock_irqsave(&dev_priv->uncore.lock, irqflags); + intel_de_write_fw(dev_priv, PLANE_STRIDE(pipe, plane_id), + PLANE_STRIDE_(stride)); + intel_de_write_fw(dev_priv, PLANE_POS(pipe, plane_id), + PLANE_POS_Y(crtc_y) | PLANE_POS_X(crtc_x)); + intel_de_write_fw(dev_priv, PLANE_SIZE(pipe, plane_id), + PLANE_HEIGHT(src_h - 1) | PLANE_WIDTH(src_w - 1)); + + skl_write_plane_wm(plane, crtc_state); + + spin_unlock_irqrestore(&dev_priv->uncore.lock, irqflags); +} + +static void +skl_plane_update_arm(struct intel_plane *plane, + const struct intel_crtc_state *crtc_state, + const struct intel_plane_state *plane_state) +{ + struct drm_i915_private *dev_priv = to_i915(plane->base.dev); + enum plane_id plane_id = plane->id; + enum pipe pipe = plane->pipe; + u32 x = plane_state->view.color_plane[0].x; + u32 y = plane_state->view.color_plane[0].y; + u32 plane_ctl, plane_color_ctl = 0; + unsigned long irqflags; + + plane_ctl = plane_state->ctl | + skl_plane_ctl_crtc(crtc_state); + + if (DISPLAY_VER(dev_priv) >= 10) + plane_color_ctl = plane_state->color_ctl | + glk_plane_color_ctl_crtc(crtc_state); + + spin_lock_irqsave(&dev_priv->uncore.lock, irqflags); + + intel_de_write_fw(dev_priv, PLANE_KEYVAL(pipe, plane_id), skl_plane_keyval(plane_state)); + intel_de_write_fw(dev_priv, PLANE_KEYMSK(pipe, plane_id), skl_plane_keymsk(plane_state)); + intel_de_write_fw(dev_priv, PLANE_KEYMAX(pipe, plane_id), skl_plane_keymax(plane_state)); + + intel_de_write_fw(dev_priv, PLANE_OFFSET(pipe, plane_id), + PLANE_OFFSET_Y(y) | PLANE_OFFSET_X(x)); + + intel_de_write_fw(dev_priv, PLANE_AUX_DIST(pipe, plane_id), + skl_plane_aux_dist(plane_state, 0)); + + intel_de_write_fw(dev_priv, PLANE_AUX_OFFSET(pipe, plane_id), + PLANE_OFFSET_Y(plane_state->view.color_plane[1].y) | + PLANE_OFFSET_X(plane_state->view.color_plane[1].x)); + + if (DISPLAY_VER(dev_priv) >= 10) + intel_de_write_fw(dev_priv, PLANE_COLOR_CTL(pipe, plane_id), plane_color_ctl); + /* - * FIXME: pxp session invalidation can hit any time even at time of commit - * or after the commit, display content will be garbage. + * Enable the scaler before the plane so that we don't + * get a catastrophic underrun even if the two operations + * end up happening in two different frames. + * + * TODO: split into noarm+arm pair */ - if (plane_state->force_black) - icl_plane_csc_load_black(plane); + if (plane_state->scaler_id >= 0) + skl_program_plane_scaler(plane, crtc_state, plane_state); + + /* + * The control register self-arms if the plane was previously + * disabled. Try to make the plane enable atomic by writing + * the control register just before the surface register. + */ + intel_de_write_fw(dev_priv, PLANE_CTL(pipe, plane_id), plane_ctl); + intel_de_write_fw(dev_priv, PLANE_SURF(pipe, plane_id), + skl_plane_surf(plane_state, 0)); + + spin_unlock_irqrestore(&dev_priv->uncore.lock, irqflags); +} + +static void +icl_plane_update_noarm(struct intel_plane *plane, + const struct intel_crtc_state *crtc_state, + const struct intel_plane_state *plane_state) +{ + struct drm_i915_private *dev_priv = to_i915(plane->base.dev); + enum plane_id plane_id = plane->id; + enum pipe pipe = plane->pipe; + int color_plane = icl_plane_color_plane(plane_state); + u32 stride = skl_plane_stride(plane_state, color_plane); + const struct drm_framebuffer *fb = plane_state->hw.fb; + int crtc_x = plane_state->uapi.dst.x1; + int crtc_y = plane_state->uapi.dst.y1; + int x = plane_state->view.color_plane[color_plane].x; + int y = plane_state->view.color_plane[color_plane].y; + int src_w = drm_rect_width(&plane_state->uapi.src) >> 16; + int src_h = drm_rect_height(&plane_state->uapi.src) >> 16; + u32 plane_color_ctl; + unsigned long irqflags; + + plane_color_ctl = plane_state->color_ctl | + glk_plane_color_ctl_crtc(crtc_state); + + /* The scaler will handle the output position */ + if (plane_state->scaler_id >= 0) { + crtc_x = 0; + crtc_y = 0; + } + + spin_lock_irqsave(&dev_priv->uncore.lock, irqflags); intel_de_write_fw(dev_priv, PLANE_STRIDE(pipe, plane_id), PLANE_STRIDE_(stride)); @@ -1115,6 +1229,13 @@ skl_plane_update_noarm(struct intel_plane *plane, intel_de_write_fw(dev_priv, PLANE_SIZE(pipe, plane_id), PLANE_HEIGHT(src_h - 1) | PLANE_WIDTH(src_w - 1)); + intel_de_write_fw(dev_priv, PLANE_KEYVAL(pipe, plane_id), skl_plane_keyval(plane_state)); + intel_de_write_fw(dev_priv, PLANE_KEYMSK(pipe, plane_id), skl_plane_keymsk(plane_state)); + intel_de_write_fw(dev_priv, PLANE_KEYMAX(pipe, plane_id), skl_plane_keymax(plane_state)); + + intel_de_write_fw(dev_priv, PLANE_OFFSET(pipe, plane_id), + PLANE_OFFSET_Y(y) | PLANE_OFFSET_X(x)); + if (intel_fb_is_rc_ccs_cc_modifier(fb->modifier)) { intel_de_write_fw(dev_priv, PLANE_CC_VAL(pipe, plane_id, 0), lower_32_bits(plane_state->ccval)); @@ -1122,61 +1243,49 @@ skl_plane_update_noarm(struct intel_plane *plane, upper_32_bits(plane_state->ccval)); } + intel_de_write_fw(dev_priv, PLANE_AUX_DIST(pipe, plane_id), + skl_plane_aux_dist(plane_state, color_plane)); + if (icl_is_hdr_plane(dev_priv, plane_id)) intel_de_write_fw(dev_priv, PLANE_CUS_CTL(pipe, plane_id), plane_state->cus_ctl); + intel_de_write_fw(dev_priv, PLANE_COLOR_CTL(pipe, plane_id), plane_color_ctl); + if (fb->format->is_yuv && icl_is_hdr_plane(dev_priv, plane_id)) icl_program_input_csc(plane, crtc_state, plane_state); skl_write_plane_wm(plane, crtc_state); + /* + * FIXME: pxp session invalidation can hit any time even at time of commit + * or after the commit, display content will be garbage. + */ + if (plane_state->force_black) + icl_plane_csc_load_black(plane); + intel_psr2_program_plane_sel_fetch(plane, crtc_state, plane_state, color_plane); spin_unlock_irqrestore(&dev_priv->uncore.lock, irqflags); } static void -skl_plane_update_arm(struct intel_plane *plane, +icl_plane_update_arm(struct intel_plane *plane, const struct intel_crtc_state *crtc_state, const struct intel_plane_state *plane_state) { struct drm_i915_private *dev_priv = to_i915(plane->base.dev); enum plane_id plane_id = plane->id; enum pipe pipe = plane->pipe; - int color_plane = skl_plane_color_plane(plane_state); - u32 x = plane_state->view.color_plane[color_plane].x; - u32 y = plane_state->view.color_plane[color_plane].y; - u32 plane_color_ctl = 0; - u32 plane_ctl = plane_state->ctl; + int color_plane = icl_plane_color_plane(plane_state); + u32 plane_ctl; unsigned long irqflags; - plane_ctl |= skl_plane_ctl_crtc(crtc_state); - - if (DISPLAY_VER(dev_priv) >= 10) - plane_color_ctl = plane_state->color_ctl | - glk_plane_color_ctl_crtc(crtc_state); + plane_ctl = plane_state->ctl | + skl_plane_ctl_crtc(crtc_state); spin_lock_irqsave(&dev_priv->uncore.lock, irqflags); - intel_de_write_fw(dev_priv, PLANE_KEYVAL(pipe, plane_id), skl_plane_keyval(plane_state)); - intel_de_write_fw(dev_priv, PLANE_KEYMSK(pipe, plane_id), skl_plane_keymsk(plane_state)); - intel_de_write_fw(dev_priv, PLANE_KEYMAX(pipe, plane_id), skl_plane_keymax(plane_state)); - - intel_de_write_fw(dev_priv, PLANE_OFFSET(pipe, plane_id), - PLANE_OFFSET_Y(y) | PLANE_OFFSET_X(x)); - - intel_de_write_fw(dev_priv, PLANE_AUX_DIST(pipe, plane_id), - skl_plane_aux_dist(plane_state, color_plane)); - - if (DISPLAY_VER(dev_priv) < 11) - intel_de_write_fw(dev_priv, PLANE_AUX_OFFSET(pipe, plane_id), - PLANE_OFFSET_Y(plane_state->view.color_plane[1].y) | - PLANE_OFFSET_X(plane_state->view.color_plane[1].x)); - - if (DISPLAY_VER(dev_priv) >= 10) - intel_de_write_fw(dev_priv, PLANE_COLOR_CTL(pipe, plane_id), plane_color_ctl); - /* * Enable the scaler before the plane so that we don't * get a catastrophic underrun even if the two operations @@ -2164,9 +2273,15 @@ skl_universal_plane_create(struct drm_i915_private *dev_priv, } plane->max_stride = skl_plane_max_stride; - plane->update_noarm = skl_plane_update_noarm; - plane->update_arm = skl_plane_update_arm; - plane->disable_arm = skl_plane_disable_arm; + if (DISPLAY_VER(dev_priv) >= 11) { + plane->update_noarm = icl_plane_update_noarm; + plane->update_arm = icl_plane_update_arm; + plane->disable_arm = icl_plane_disable_arm; + } else { + plane->update_noarm = skl_plane_update_noarm; + plane->update_arm = skl_plane_update_arm; + plane->disable_arm = skl_plane_disable_arm; + } plane->get_hw_state = skl_plane_get_hw_state; plane->check_plane = skl_plane_check;