Commit e62929b3 authored by Maarten Lankhorst's avatar Maarten Lankhorst

drm/i915/gen9+: Program watermarks as a separate step during evasion, v3.

The watermark updates for SKL style watermarks are no longer done
in the plane callbacks, but are now called in a separate watermark
update function that's called during the same vblank evasion,
before the plane updates.

This also gets rid of the global skl_results, which was required for
keeping track of the current atomic commit.

Changes since v1:
- Move line unwrap to correct patch. (Lyude)
- Make sure we don't regress ILK watermarks. (Matt)
- Rephrase commit message. (Matt)
Changes since v2:
- Fix disable watermark check to use the correct way to determine single
  step watermark support.
Reviewed-by: default avatarMatt Roper <matthew.d.roper@intel.com>
Reviewed-by: default avatarLyude <cpaul@redhat.com>
Signed-off-by: default avatarMaarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1478609742-13603-3-git-send-email-maarten.lankhorst@linux.intel.com
[mlankhorst: Small whitespace fix in skl_initial_wm]
parent ccf010fb
......@@ -2047,13 +2047,6 @@ struct drm_i915_private {
*/
uint16_t skl_latency[8];
/*
* The skl_wm_values structure is a bit too big for stack
* allocation, so we keep the staging struct where we store
* intermediate results here instead.
*/
struct skl_wm_values skl_results;
/* current hardware state */
union {
struct ilk_wm_values hw;
......
......@@ -3391,9 +3391,6 @@ static void skylake_update_primary_plane(struct drm_plane *plane,
struct drm_i915_private *dev_priv = to_i915(dev);
struct intel_crtc *intel_crtc = to_intel_crtc(crtc_state->base.crtc);
struct drm_framebuffer *fb = plane_state->base.fb;
const struct skl_wm_values *wm = &dev_priv->wm.skl_results;
const struct skl_plane_wm *p_wm =
&crtc_state->wm.skl.optimal.planes[0];
int pipe = intel_crtc->pipe;
u32 plane_ctl;
unsigned int rotation = plane_state->base.rotation;
......@@ -3429,9 +3426,6 @@ static void skylake_update_primary_plane(struct drm_plane *plane,
intel_crtc->adjusted_x = src_x;
intel_crtc->adjusted_y = src_y;
if (wm->dirty_pipes & drm_crtc_mask(&intel_crtc->base))
skl_write_plane_wm(intel_crtc, p_wm, &wm->ddb, 0);
I915_WRITE(PLANE_CTL(pipe, 0), plane_ctl);
I915_WRITE(PLANE_OFFSET(pipe, 0), (src_y << 16) | src_x);
I915_WRITE(PLANE_STRIDE(pipe, 0), stride);
......@@ -3464,18 +3458,8 @@ static void skylake_disable_primary_plane(struct drm_plane *primary,
struct drm_device *dev = crtc->dev;
struct drm_i915_private *dev_priv = to_i915(dev);
struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
struct intel_crtc_state *cstate = to_intel_crtc_state(crtc->state);
const struct skl_plane_wm *p_wm = &cstate->wm.skl.optimal.planes[0];
int pipe = intel_crtc->pipe;
/*
* We only populate skl_results on watermark updates, and if the
* plane's visiblity isn't actually changing neither is its watermarks.
*/
if (!crtc->primary->state->visible)
skl_write_plane_wm(intel_crtc, p_wm,
&dev_priv->wm.skl_results.ddb, 0);
I915_WRITE(PLANE_CTL(pipe, 0), 0);
I915_WRITE(PLANE_SURF(pipe, 0), 0);
POSTING_READ(PLANE_SURF(pipe, 0));
......@@ -10865,16 +10849,9 @@ static void i9xx_update_cursor(struct drm_crtc *crtc, u32 base,
struct drm_device *dev = crtc->dev;
struct drm_i915_private *dev_priv = to_i915(dev);
struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
struct intel_crtc_state *cstate = to_intel_crtc_state(crtc->state);
const struct skl_wm_values *wm = &dev_priv->wm.skl_results;
const struct skl_plane_wm *p_wm =
&cstate->wm.skl.optimal.planes[PLANE_CURSOR];
int pipe = intel_crtc->pipe;
uint32_t cntl = 0;
if (INTEL_GEN(dev_priv) >= 9 && wm->dirty_pipes & drm_crtc_mask(crtc))
skl_write_cursor_wm(intel_crtc, p_wm, &wm->ddb);
if (plane_state && plane_state->base.visible) {
cntl = MCURSOR_GAMMA_ENABLE;
switch (plane_state->base.crtc_w) {
......@@ -14425,8 +14402,17 @@ static void intel_atomic_commit_tail(struct drm_atomic_state *state)
intel_check_cpu_fifo_underruns(dev_priv);
intel_check_pch_fifo_underruns(dev_priv);
if (!crtc->state->active)
intel_update_watermarks(intel_crtc);
if (!crtc->state->active) {
/*
* Make sure we don't call initial_watermarks
* for ILK-style watermark updates.
*/
if (dev_priv->display.atomic_update_watermarks)
dev_priv->display.initial_watermarks(intel_state,
to_intel_crtc_state(crtc->state));
else
intel_update_watermarks(intel_crtc);
}
}
}
......@@ -14622,7 +14608,6 @@ static int intel_atomic_commit(struct drm_device *dev,
drm_atomic_helper_swap_state(state, true);
dev_priv->wm.distrust_bios_wm = false;
dev_priv->wm.skl_results = intel_state->wm_results;
intel_shared_dpll_commit(state);
intel_atomic_track_fbs(state);
......@@ -14946,7 +14931,7 @@ static void intel_begin_crtc_commit(struct drm_crtc *crtc,
intel_pipe_update_start(intel_crtc);
if (modeset)
return;
goto out;
if (crtc->state->color_mgmt_changed || to_intel_crtc_state(crtc->state)->update_pipe) {
intel_color_set_csc(crtc->state);
......@@ -14958,6 +14943,7 @@ static void intel_begin_crtc_commit(struct drm_crtc *crtc,
else if (INTEL_GEN(dev_priv) >= 9)
skl_detach_scalers(intel_crtc);
out:
if (dev_priv->display.atomic_update_watermarks)
dev_priv->display.atomic_update_watermarks(old_intel_state,
intel_cstate);
......
......@@ -1744,13 +1744,6 @@ bool skl_ddb_allocation_equals(const struct skl_ddb_allocation *old,
enum pipe pipe);
bool skl_ddb_allocation_overlaps(struct drm_atomic_state *state,
struct intel_crtc *intel_crtc);
void skl_write_cursor_wm(struct intel_crtc *intel_crtc,
const struct skl_plane_wm *wm,
const struct skl_ddb_allocation *ddb);
void skl_write_plane_wm(struct intel_crtc *intel_crtc,
const struct skl_plane_wm *wm,
const struct skl_ddb_allocation *ddb,
int plane);
uint32_t ilk_pipe_pixel_rate(const struct intel_crtc_state *pipe_config);
bool ilk_disable_lp_wm(struct drm_device *dev);
int sanitize_rc6_option(struct drm_i915_private *dev_priv, int enable_rc6);
......
......@@ -4202,19 +4202,29 @@ static void skl_atomic_update_crtc_wm(struct intel_atomic_state *state,
struct intel_crtc *crtc = to_intel_crtc(cstate->base.crtc);
struct drm_i915_private *dev_priv = to_i915(state->base.dev);
struct skl_pipe_wm *pipe_wm = &cstate->wm.skl.optimal;
const struct skl_ddb_allocation *ddb = &state->wm_results.ddb;
enum pipe pipe = crtc->pipe;
int plane;
if (!(state->wm_results.dirty_pipes & drm_crtc_mask(&crtc->base)))
return;
I915_WRITE(PIPE_WM_LINETIME(pipe), pipe_wm->linetime);
for_each_universal_plane(dev_priv, pipe, plane)
skl_write_plane_wm(crtc, &pipe_wm->planes[plane], ddb, plane);
skl_write_cursor_wm(crtc, &pipe_wm->planes[PLANE_CURSOR], ddb);
}
static void skl_update_wm(struct intel_crtc *intel_crtc)
static void skl_initial_wm(struct intel_atomic_state *state,
struct intel_crtc_state *cstate)
{
struct intel_crtc *intel_crtc = to_intel_crtc(cstate->base.crtc);
struct drm_device *dev = intel_crtc->base.dev;
struct drm_i915_private *dev_priv = to_i915(dev);
struct skl_wm_values *results = &dev_priv->wm.skl_results;
struct skl_wm_values *results = &state->wm_results;
struct skl_wm_values *hw_vals = &dev_priv->wm.skl_hw;
struct intel_crtc_state *cstate = to_intel_crtc_state(intel_crtc->base.state);
struct skl_pipe_wm *pipe_wm = &cstate->wm.skl.optimal;
enum pipe pipe = intel_crtc->pipe;
if ((results->dirty_pipes & drm_crtc_mask(&intel_crtc->base)) == 0)
......@@ -4222,22 +4232,8 @@ static void skl_update_wm(struct intel_crtc *intel_crtc)
mutex_lock(&dev_priv->wm.wm_mutex);
/*
* If this pipe isn't active already, we're going to be enabling it
* very soon. Since it's safe to update a pipe's ddb allocation while
* the pipe's shut off, just do so here. Already active pipes will have
* their watermarks updated once we update their planes.
*/
if (intel_crtc->base.state->active_changed) {
int plane;
for_each_universal_plane(dev_priv, pipe, plane)
skl_write_plane_wm(intel_crtc, &pipe_wm->planes[plane],
&results->ddb, plane);
skl_write_cursor_wm(intel_crtc, &pipe_wm->planes[PLANE_CURSOR],
&results->ddb);
}
if (cstate->base.active_changed)
skl_atomic_update_crtc_wm(state, cstate);
skl_copy_wm_for_pipe(hw_vals, results, pipe);
......@@ -7706,7 +7702,7 @@ void intel_init_pm(struct drm_i915_private *dev_priv)
/* For FIFO watermark updates */
if (INTEL_GEN(dev_priv) >= 9) {
skl_setup_wm_latency(dev_priv);
dev_priv->display.update_wm = skl_update_wm;
dev_priv->display.initial_watermarks = skl_initial_wm;
dev_priv->display.atomic_update_watermarks = skl_atomic_update_crtc_wm;
dev_priv->display.compute_global_watermarks = skl_compute_wm;
} else if (HAS_PCH_SPLIT(dev_priv)) {
......
......@@ -203,13 +203,8 @@ skl_update_plane(struct drm_plane *drm_plane,
struct drm_i915_private *dev_priv = to_i915(dev);
struct intel_plane *intel_plane = to_intel_plane(drm_plane);
struct drm_framebuffer *fb = plane_state->base.fb;
const struct skl_wm_values *wm = &dev_priv->wm.skl_results;
struct drm_crtc *crtc = crtc_state->base.crtc;
struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
const int pipe = intel_plane->pipe;
const int plane = intel_plane->plane + 1;
const struct skl_plane_wm *p_wm =
&crtc_state->wm.skl.optimal.planes[plane];
u32 plane_ctl;
const struct drm_intel_sprite_colorkey *key = &plane_state->ckey;
u32 surf_addr = plane_state->main.offset;
......@@ -233,9 +228,6 @@ skl_update_plane(struct drm_plane *drm_plane,
plane_ctl |= skl_plane_ctl_rotation(rotation);
if (wm->dirty_pipes & drm_crtc_mask(crtc))
skl_write_plane_wm(intel_crtc, p_wm, &wm->ddb, plane);
if (key->flags) {
I915_WRITE(PLANE_KEYVAL(pipe, plane), key->min_value);
I915_WRITE(PLANE_KEYMAX(pipe, plane), key->max_value);
......@@ -291,19 +283,9 @@ skl_disable_plane(struct drm_plane *dplane, struct drm_crtc *crtc)
struct drm_device *dev = dplane->dev;
struct drm_i915_private *dev_priv = to_i915(dev);
struct intel_plane *intel_plane = to_intel_plane(dplane);
struct intel_crtc_state *cstate = to_intel_crtc_state(crtc->state);
const int pipe = intel_plane->pipe;
const int plane = intel_plane->plane + 1;
/*
* We only populate skl_results on watermark updates, and if the
* plane's visiblity isn't actually changing neither is its watermarks.
*/
if (!dplane->state->visible)
skl_write_plane_wm(to_intel_crtc(crtc),
&cstate->wm.skl.optimal.planes[plane],
&dev_priv->wm.skl_results.ddb, plane);
I915_WRITE(PLANE_CTL(pipe, plane), 0);
I915_WRITE(PLANE_SURF(pipe, plane), 0);
......
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