From 83234d13f9fda65e6c1a5e5900aa247334b1a621 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Ville=20Syrj=C3=A4l=C3=A4?= Date: Wed, 14 Nov 2018 23:07:17 +0200 Subject: drm/i915: Reorganize plane register writes to make them more atomic MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Some observations about the plane registers: - the control register will self-arm if the plane is not already enabled, thus we want to write it as close to (or ideally after) the surface register - tileoff/linoff/offset/aux_offset are self-arming as well so we want them close to the surface register as well - color keying registers we maybe self arming before SKL. Not 100% sure but we can try to keep them near to the surface register as well - chv pipe b csc register are double buffered but self arming so moving them down a bit - the rest should be mostly armed by the surface register so we can safely write them first, and to just for some consistency let's try to follow keep them in order based on the register offset None of this will have any effect of course unless the vblank evasion fails (which it still does sometimes). Another potential future benefit might be pulling the non-self armings registers outside the vblank evasion since they won't latch until the arming register has been written. This would make the critical section a bit lighter and thus less likely to exceed the deadline. v2: Rebase due to input CSC v3: Swap LINOFF/TILEOFF and KEYMSK/KEYMAX to actually follow the last rule above (Matt) Add a bit more rationale to the commit message (Matt) Cc: Matt Roper Signed-off-by: Ville Syrjälä Link: https://patchwork.freedesktop.org/patch/msgid/20181114210729.16185-2-ville.syrjala@linux.intel.com Reviewed-by: Matt Roper Reviewed-by: Maarten Lankhorst --- drivers/gpu/drm/i915/intel_sprite.c | 108 +++++++++++++++++++++--------------- 1 file changed, 64 insertions(+), 44 deletions(-) (limited to 'drivers/gpu/drm/i915/intel_sprite.c') diff --git a/drivers/gpu/drm/i915/intel_sprite.c b/drivers/gpu/drm/i915/intel_sprite.c index abe193815ccc..6cefe5f7a374 100644 --- a/drivers/gpu/drm/i915/intel_sprite.c +++ b/drivers/gpu/drm/i915/intel_sprite.c @@ -508,28 +508,12 @@ skl_program_plane(struct intel_plane *plane, spin_lock_irqsave(&dev_priv->uncore.lock, irqflags); - if (INTEL_GEN(dev_priv) >= 10 || IS_GEMINILAKE(dev_priv)) - I915_WRITE_FW(PLANE_COLOR_CTL(pipe, plane_id), - plane_state->color_ctl); - - if (fb->format->is_yuv && icl_is_hdr_plane(plane)) - icl_program_input_csc_coeff(crtc_state, plane_state); - - I915_WRITE_FW(PLANE_KEYVAL(pipe, plane_id), key->min_value); - I915_WRITE_FW(PLANE_KEYMAX(pipe, plane_id), keymax); - I915_WRITE_FW(PLANE_KEYMSK(pipe, plane_id), keymsk); - - I915_WRITE_FW(PLANE_OFFSET(pipe, plane_id), (y << 16) | x); I915_WRITE_FW(PLANE_STRIDE(pipe, plane_id), stride); + I915_WRITE_FW(PLANE_POS(pipe, plane_id), (crtc_y << 16) | crtc_x); I915_WRITE_FW(PLANE_SIZE(pipe, plane_id), (src_h << 16) | src_w); I915_WRITE_FW(PLANE_AUX_DIST(pipe, plane_id), (plane_state->color_plane[1].offset - surf_addr) | aux_stride); - if (INTEL_GEN(dev_priv) < 11) - I915_WRITE_FW(PLANE_AUX_OFFSET(pipe, plane_id), - (plane_state->color_plane[1].y << 16) | - plane_state->color_plane[1].x); - if (icl_is_hdr_plane(plane)) { u32 cus_ctl = 0; @@ -551,15 +535,36 @@ skl_program_plane(struct intel_plane *plane, I915_WRITE_FW(PLANE_CUS_CTL(pipe, plane_id), cus_ctl); } - if (!slave && plane_state->scaler_id >= 0) - skl_program_scaler(plane, crtc_state, plane_state); + if (INTEL_GEN(dev_priv) >= 10 || IS_GEMINILAKE(dev_priv)) + I915_WRITE_FW(PLANE_COLOR_CTL(pipe, plane_id), + plane_state->color_ctl); - I915_WRITE_FW(PLANE_POS(pipe, plane_id), (crtc_y << 16) | crtc_x); + if (fb->format->is_yuv && icl_is_hdr_plane(plane)) + icl_program_input_csc_coeff(crtc_state, plane_state); + + I915_WRITE_FW(PLANE_KEYVAL(pipe, plane_id), key->min_value); + I915_WRITE_FW(PLANE_KEYMSK(pipe, plane_id), keymsk); + I915_WRITE_FW(PLANE_KEYMAX(pipe, plane_id), keymax); + + I915_WRITE_FW(PLANE_OFFSET(pipe, plane_id), (y << 16) | x); + + if (INTEL_GEN(dev_priv) < 11) + I915_WRITE_FW(PLANE_AUX_OFFSET(pipe, plane_id), + (plane_state->color_plane[1].y << 16) | + plane_state->color_plane[1].x); + /* + * 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. + */ I915_WRITE_FW(PLANE_CTL(pipe, plane_id), plane_ctl); I915_WRITE_FW(PLANE_SURF(pipe, plane_id), intel_plane_ggtt_offset(plane_state) + surf_addr); + if (!slave && plane_state->scaler_id >= 0) + skl_program_scaler(plane, crtc_state, plane_state); + spin_unlock_irqrestore(&dev_priv->uncore.lock, irqflags); } @@ -821,24 +826,29 @@ vlv_update_plane(struct intel_plane *plane, vlv_update_clrc(plane_state); + I915_WRITE_FW(SPSTRIDE(pipe, plane_id), + plane_state->color_plane[0].stride); + I915_WRITE_FW(SPPOS(pipe, plane_id), (crtc_y << 16) | crtc_x); + I915_WRITE_FW(SPSIZE(pipe, plane_id), (crtc_h << 16) | crtc_w); + I915_WRITE_FW(SPCONSTALPHA(pipe, plane_id), 0); + if (IS_CHERRYVIEW(dev_priv) && pipe == PIPE_B) chv_update_csc(plane_state); if (key->flags) { I915_WRITE_FW(SPKEYMINVAL(pipe, plane_id), key->min_value); - I915_WRITE_FW(SPKEYMAXVAL(pipe, plane_id), key->max_value); I915_WRITE_FW(SPKEYMSK(pipe, plane_id), key->channel_mask); + I915_WRITE_FW(SPKEYMAXVAL(pipe, plane_id), key->max_value); } - I915_WRITE_FW(SPSTRIDE(pipe, plane_id), - plane_state->color_plane[0].stride); - I915_WRITE_FW(SPPOS(pipe, plane_id), (crtc_y << 16) | crtc_x); - I915_WRITE_FW(SPTILEOFF(pipe, plane_id), (y << 16) | x); I915_WRITE_FW(SPLINOFF(pipe, plane_id), linear_offset); + I915_WRITE_FW(SPTILEOFF(pipe, plane_id), (y << 16) | x); - I915_WRITE_FW(SPCONSTALPHA(pipe, plane_id), 0); - - I915_WRITE_FW(SPSIZE(pipe, plane_id), (crtc_h << 16) | crtc_w); + /* + * 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. + */ I915_WRITE_FW(SPCNTR(pipe, plane_id), sprctl); I915_WRITE_FW(SPSURF(pipe, plane_id), intel_plane_ggtt_offset(plane_state) + sprsurf_offset); @@ -980,27 +990,32 @@ ivb_update_plane(struct intel_plane *plane, spin_lock_irqsave(&dev_priv->uncore.lock, irqflags); + I915_WRITE_FW(SPRSTRIDE(pipe), plane_state->color_plane[0].stride); + I915_WRITE_FW(SPRPOS(pipe), (crtc_y << 16) | crtc_x); + I915_WRITE_FW(SPRSIZE(pipe), (crtc_h << 16) | crtc_w); + if (IS_IVYBRIDGE(dev_priv)) + I915_WRITE_FW(SPRSCALE(pipe), sprscale); + if (key->flags) { I915_WRITE_FW(SPRKEYVAL(pipe), key->min_value); - I915_WRITE_FW(SPRKEYMAX(pipe), key->max_value); I915_WRITE_FW(SPRKEYMSK(pipe), key->channel_mask); + I915_WRITE_FW(SPRKEYMAX(pipe), key->max_value); } - I915_WRITE_FW(SPRSTRIDE(pipe), plane_state->color_plane[0].stride); - I915_WRITE_FW(SPRPOS(pipe), (crtc_y << 16) | crtc_x); - /* HSW consolidates SPRTILEOFF and SPRLINOFF into a single SPROFFSET * register */ if (IS_HASWELL(dev_priv) || IS_BROADWELL(dev_priv)) { I915_WRITE_FW(SPROFFSET(pipe), (y << 16) | x); } else { - I915_WRITE_FW(SPRTILEOFF(pipe), (y << 16) | x); I915_WRITE_FW(SPRLINOFF(pipe), linear_offset); + I915_WRITE_FW(SPRTILEOFF(pipe), (y << 16) | x); } - I915_WRITE_FW(SPRSIZE(pipe), (crtc_h << 16) | crtc_w); - if (IS_IVYBRIDGE(dev_priv)) - I915_WRITE_FW(SPRSCALE(pipe), sprscale); + /* + * 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. + */ I915_WRITE_FW(SPRCTL(pipe), sprctl); I915_WRITE_FW(SPRSURF(pipe), intel_plane_ggtt_offset(plane_state) + sprsurf_offset); @@ -1018,7 +1033,7 @@ ivb_disable_plane(struct intel_plane *plane, struct intel_crtc *crtc) spin_lock_irqsave(&dev_priv->uncore.lock, irqflags); I915_WRITE_FW(SPRCTL(pipe), 0); - /* Can't leave the scaler enabled... */ + /* Disable the scaler */ if (IS_IVYBRIDGE(dev_priv)) I915_WRITE_FW(SPRSCALE(pipe), 0); I915_WRITE_FW(SPRSURF(pipe), 0); @@ -1148,20 +1163,25 @@ g4x_update_plane(struct intel_plane *plane, spin_lock_irqsave(&dev_priv->uncore.lock, irqflags); + I915_WRITE_FW(DVSSTRIDE(pipe), plane_state->color_plane[0].stride); + I915_WRITE_FW(DVSPOS(pipe), (crtc_y << 16) | crtc_x); + I915_WRITE_FW(DVSSIZE(pipe), (crtc_h << 16) | crtc_w); + I915_WRITE_FW(DVSSCALE(pipe), dvsscale); + if (key->flags) { I915_WRITE_FW(DVSKEYVAL(pipe), key->min_value); - I915_WRITE_FW(DVSKEYMAX(pipe), key->max_value); I915_WRITE_FW(DVSKEYMSK(pipe), key->channel_mask); + I915_WRITE_FW(DVSKEYMAX(pipe), key->max_value); } - I915_WRITE_FW(DVSSTRIDE(pipe), plane_state->color_plane[0].stride); - I915_WRITE_FW(DVSPOS(pipe), (crtc_y << 16) | crtc_x); - - I915_WRITE_FW(DVSTILEOFF(pipe), (y << 16) | x); I915_WRITE_FW(DVSLINOFF(pipe), linear_offset); + I915_WRITE_FW(DVSTILEOFF(pipe), (y << 16) | x); - I915_WRITE_FW(DVSSIZE(pipe), (crtc_h << 16) | crtc_w); - I915_WRITE_FW(DVSSCALE(pipe), dvsscale); + /* + * 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. + */ I915_WRITE_FW(DVSCNTR(pipe), dvscntr); I915_WRITE_FW(DVSSURF(pipe), intel_plane_ggtt_offset(plane_state) + dvssurf_offset); -- cgit v1.2.3 From 019575a58c84b1cd534d1dd1cad36592995f8f6b Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Ville=20Syrj=C3=A4l=C3=A4?= Date: Wed, 14 Nov 2018 23:07:18 +0200 Subject: drm/i915: Move single buffered plane register writes to the end MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The plane color correction registers are single buffered. So ideally we would write them at the start of vblank just after the double buffered plane registers have been latched. Since we have no convenient way to do that for now let's at least move the single buffered register writes to happen after the double buffered registers have been written. Reviewed-by: Rodrigo Vivi Signed-off-by: Ville Syrjälä Link: https://patchwork.freedesktop.org/patch/msgid/20181114210729.16185-3-ville.syrjala@linux.intel.com Reviewed-by: Matt Roper Reviewed-by: Maarten Lankhorst --- drivers/gpu/drm/i915/intel_sprite.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'drivers/gpu/drm/i915/intel_sprite.c') diff --git a/drivers/gpu/drm/i915/intel_sprite.c b/drivers/gpu/drm/i915/intel_sprite.c index 6cefe5f7a374..0548b996693f 100644 --- a/drivers/gpu/drm/i915/intel_sprite.c +++ b/drivers/gpu/drm/i915/intel_sprite.c @@ -824,8 +824,6 @@ vlv_update_plane(struct intel_plane *plane, spin_lock_irqsave(&dev_priv->uncore.lock, irqflags); - vlv_update_clrc(plane_state); - I915_WRITE_FW(SPSTRIDE(pipe, plane_id), plane_state->color_plane[0].stride); I915_WRITE_FW(SPPOS(pipe, plane_id), (crtc_y << 16) | crtc_x); @@ -853,6 +851,8 @@ vlv_update_plane(struct intel_plane *plane, I915_WRITE_FW(SPSURF(pipe, plane_id), intel_plane_ggtt_offset(plane_state) + sprsurf_offset); + vlv_update_clrc(plane_state); + spin_unlock_irqrestore(&dev_priv->uncore.lock, irqflags); } -- cgit v1.2.3 From 0dd14be30d4c8401be9cd129df3b3ee238ea6f78 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Ville=20Syrj=C3=A4l=C3=A4?= Date: Wed, 14 Nov 2018 23:07:20 +0200 Subject: drm/i915: Pass the new crtc_state to ->disable_plane() MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit We're going to need access to the new crtc state in ->disable_plane() for SKL+ wm/ddb programming and pre-skl pipe gamma/csc control. Pass the crtc state down. We'll also try to make intel_crtc_disable_planes() do the right thing as much as it's possible. The fact that we don't have a separate crtc state for the disabled state when we're going to re-enable the crtc later means we might end up poking at a few extra planes in there. But that's harmless. I suppose one might argue that we wouldn't have to care about proper ddb/wm/csc/gamma if the pipe is going to permanently disable anyway, but the state checker probably cares so we should try our best to make sure everything is programmed correctly even in that case. v2: Fix the commit message a bit (Matt) Cc: Matt Roper Signed-off-by: Ville Syrjälä Link: https://patchwork.freedesktop.org/patch/msgid/20181114210729.16185-5-ville.syrjala@linux.intel.com Reviewed-by: Matt Roper Reviewed-by: Maarten Lankhorst --- drivers/gpu/drm/i915/intel_sprite.c | 12 ++++++++---- 1 file changed, 8 insertions(+), 4 deletions(-) (limited to 'drivers/gpu/drm/i915/intel_sprite.c') diff --git a/drivers/gpu/drm/i915/intel_sprite.c b/drivers/gpu/drm/i915/intel_sprite.c index 0548b996693f..e5da2fe3bdae 100644 --- a/drivers/gpu/drm/i915/intel_sprite.c +++ b/drivers/gpu/drm/i915/intel_sprite.c @@ -594,7 +594,8 @@ icl_update_slave(struct intel_plane *plane, } static void -skl_disable_plane(struct intel_plane *plane, struct intel_crtc *crtc) +skl_disable_plane(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; @@ -857,7 +858,8 @@ vlv_update_plane(struct intel_plane *plane, } static void -vlv_disable_plane(struct intel_plane *plane, struct intel_crtc *crtc) +vlv_disable_plane(struct intel_plane *plane, + const struct intel_crtc_state *crtc_state) { struct drm_i915_private *dev_priv = to_i915(plane->base.dev); enum pipe pipe = plane->pipe; @@ -1024,7 +1026,8 @@ ivb_update_plane(struct intel_plane *plane, } static void -ivb_disable_plane(struct intel_plane *plane, struct intel_crtc *crtc) +ivb_disable_plane(struct intel_plane *plane, + const struct intel_crtc_state *crtc_state) { struct drm_i915_private *dev_priv = to_i915(plane->base.dev); enum pipe pipe = plane->pipe; @@ -1190,7 +1193,8 @@ g4x_update_plane(struct intel_plane *plane, } static void -g4x_disable_plane(struct intel_plane *plane, struct intel_crtc *crtc) +g4x_disable_plane(struct intel_plane *plane, + const struct intel_crtc_state *crtc_state) { struct drm_i915_private *dev_priv = to_i915(plane->base.dev); enum pipe pipe = plane->pipe; -- cgit v1.2.3 From ff43bc379e16c9195323cb88ac0c9f4d0613d07a Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Ville=20Syrj=C3=A4l=C3=A4?= Date: Tue, 27 Nov 2018 18:59:00 +0200 Subject: drm/i915: Move ddb/wm programming into plane update/disable hooks on skl+ MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit On SKL+ the plane WM/BUF_CFG registers are a proper part of each plane's register set. That means accessing them will cancel any pending plane update, and we would need a PLANE_SURF register write to arm the wm/ddb change as well. To avoid all the problems with that let's just move the wm/ddb programming into the plane update/disable hooks. Now all plane registers get written in one (hopefully atomic) operation. To make that feasible we'll move the plane ddb tracking into the crtc state. Watermarks were already tracked there. v2: Rebase due to input CSC v3: Split out a bunch of junk (Matt) v4: Add skl_wm_add_affected_planes() to deal with cursor special case and non-zero wm register reset value v5: Drop the unrelated for_each_intel_plane_mask() fix (Matt) Remove the redundant ddb memset() (Matt) Cc: Matt Roper Cc: Maarten Lankhorst Reviewed-by: Maarten Lankhorst #v3 Signed-off-by: Ville Syrjälä Link: https://patchwork.freedesktop.org/patch/msgid/20181127165900.31298-1-ville.syrjala@linux.intel.com --- drivers/gpu/drm/i915/intel_sprite.c | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'drivers/gpu/drm/i915/intel_sprite.c') diff --git a/drivers/gpu/drm/i915/intel_sprite.c b/drivers/gpu/drm/i915/intel_sprite.c index e5da2fe3bdae..32df604e90b6 100644 --- a/drivers/gpu/drm/i915/intel_sprite.c +++ b/drivers/gpu/drm/i915/intel_sprite.c @@ -542,6 +542,8 @@ skl_program_plane(struct intel_plane *plane, if (fb->format->is_yuv && icl_is_hdr_plane(plane)) icl_program_input_csc_coeff(crtc_state, plane_state); + skl_write_plane_wm(plane, crtc_state); + I915_WRITE_FW(PLANE_KEYVAL(pipe, plane_id), key->min_value); I915_WRITE_FW(PLANE_KEYMSK(pipe, plane_id), keymsk); I915_WRITE_FW(PLANE_KEYMAX(pipe, plane_id), keymax); @@ -604,6 +606,8 @@ skl_disable_plane(struct intel_plane *plane, spin_lock_irqsave(&dev_priv->uncore.lock, irqflags); + skl_write_plane_wm(plane, crtc_state); + I915_WRITE_FW(PLANE_CTL(pipe, plane_id), 0); I915_WRITE_FW(PLANE_SURF(pipe, plane_id), 0); -- cgit v1.2.3 From 1fdee7582cce4c9d56b24e6caf1a87cd47a11825 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Ville=20Syrj=C3=A4l=C3=A4?= Date: Wed, 14 Nov 2018 23:07:29 +0200 Subject: drm/i915: Pass the plane to icl_program_input_csc_coeff() MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit On icl+ the plane state that gets passed to update_slave() is not the plane state of the plane we're programming. With NV12 the plane state would be coming from the master (UV) plane whereas the plane we're programming is the slave (Y) plane. For that reason we need to explicitly pass around the slave plane (or we'd have to otherwise deduce it by checking whether we were called via .update_plane() or .update_slave()). In the case of icl_program_input_csc_coeff() it's actually OK to assume that we are always the master plane because the input CSC only exists on HDR planes which can never be a slave plane. But for consistency let's pass in the plane explicitly anyway. While at it drop the "_coeff" from the function name since it's kinda redundant, and this makes the name a bit shorter :) Cc: Uma Shankar Cc: Maarten Lankhorst Signed-off-by: Ville Syrjälä Link: https://patchwork.freedesktop.org/patch/msgid/20181114210729.16185-14-ville.syrjala@linux.intel.com Reviewed-by: Uma Shankar Reviewed-by: Maarten Lankhorst Reviewed-by: Matt Roper --- drivers/gpu/drm/i915/intel_sprite.c | 14 ++++++-------- 1 file changed, 6 insertions(+), 8 deletions(-) (limited to 'drivers/gpu/drm/i915/intel_sprite.c') diff --git a/drivers/gpu/drm/i915/intel_sprite.c b/drivers/gpu/drm/i915/intel_sprite.c index 32df604e90b6..d2e003d8f3db 100644 --- a/drivers/gpu/drm/i915/intel_sprite.c +++ b/drivers/gpu/drm/i915/intel_sprite.c @@ -373,14 +373,12 @@ skl_program_scaler(struct intel_plane *plane, #define BOFF(x) (((x) & 0xffff) << 16) static void -icl_program_input_csc_coeff(const struct intel_crtc_state *crtc_state, - const struct intel_plane_state *plane_state) +icl_program_input_csc(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_state->base.plane->dev); - struct intel_crtc *crtc = to_intel_crtc(crtc_state->base.crtc); - enum pipe pipe = crtc->pipe; - struct intel_plane *plane = to_intel_plane(plane_state->base.plane); + struct drm_i915_private *dev_priv = to_i915(plane->base.dev); + enum pipe pipe = plane->pipe; enum plane_id plane_id = plane->id; static const u16 input_csc_matrix[][9] = { @@ -540,7 +538,7 @@ skl_program_plane(struct intel_plane *plane, plane_state->color_ctl); if (fb->format->is_yuv && icl_is_hdr_plane(plane)) - icl_program_input_csc_coeff(crtc_state, plane_state); + icl_program_input_csc(plane, crtc_state, plane_state); skl_write_plane_wm(plane, crtc_state); -- cgit v1.2.3