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drm/i915: Optimize icl+ universal plane programming

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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 <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220210062403.18690-2-ville.syrjala@linux.intel.com
Reviewed-by: Stanislav Lisovskiy <stanislav.lisovskiy@intel.com>
This commit is contained in:
Ville Syrjälä 2022-02-10 08:23:59 +02:00
parent 072ce4164f
commit f8a005eb89
1 changed files with 156 additions and 41 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

197
drivers/gpu/drm/i915/display/skl_universal_plane.c
View file

@ -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;
@ -1101,13 +1118,6 @@ skl_plane_update_noarm(struct intel_plane *plane,
spin_lock_irqsave(&dev_priv->uncore.lock, irqflags);
/*
* 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_de_write_fw(dev_priv, PLANE_STRIDE(pipe, plane_id),
PLANE_STRIDE_(stride));
intel_de_write_fw(dev_priv, PLANE_POS(pipe, plane_id),
@ -1115,24 +1125,8 @@ 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));
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));
intel_de_write_fw(dev_priv, PLANE_CC_VAL(pipe, plane_id, 1),
upper_32_bits(plane_state->ccval));
}
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);
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);
intel_psr2_program_plane_sel_fetch(plane, crtc_state, plane_state, color_plane);
spin_unlock_irqrestore(&dev_priv->uncore.lock, irqflags);
}
@ -1144,14 +1138,13 @@ skl_plane_update_arm(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 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;
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 |= skl_plane_ctl_crtc(crtc_state);
plane_ctl = plane_state->ctl |
skl_plane_ctl_crtc(crtc_state);
if (DISPLAY_VER(dev_priv) >= 10)
plane_color_ctl = plane_state->color_ctl |
@ -1167,16 +1160,132 @@ skl_plane_update_arm(struct intel_plane *plane,
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));
skl_plane_aux_dist(plane_state, 0));
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));
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
* end up happening in two different frames.
*
* TODO: split into noarm+arm pair
*/
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));
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));
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));
intel_de_write_fw(dev_priv, PLANE_CC_VAL(pipe, plane_id, 1),
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
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 = icl_plane_color_plane(plane_state);
u32 plane_ctl;
unsigned long irqflags;
plane_ctl = plane_state->ctl |
skl_plane_ctl_crtc(crtc_state);
spin_lock_irqsave(&dev_priv->uncore.lock, irqflags);
/*
* 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;