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drm/i915: Don't try to calculate relative data rates during hw readout 

We don't actually read out full plane state during driver startup (only
whether the primary plane is enabled/disabled), so all of the src/dest
rectangles are invalid at this point.  However this calculation was
needless anyway since we re-calculate them from scratch on the very
first atomic transaction after boot anyway.

Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Reviewed-by: Kumar Mahesh <mahesh1.kumar@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1463439121-28974-2-git-send-email-matthew.d.roper@intel.com
This commit is contained in:
Matt Roper 2016-05-16 15:51:58 -07:00
parent 457c52d87e
commit edd4156fd6
1 changed files with 0 additions and 18 deletions
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18
drivers/gpu/drm/i915/intel_pm.c
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@ -4046,7 +4046,6 @@ void skl_wm_get_hw_state(struct drm_device *dev)
struct drm_i915_private *dev_priv = dev->dev_private;
struct skl_ddb_allocation *ddb = &dev_priv->wm.skl_hw.ddb;
struct drm_crtc *crtc;
struct intel_crtc *intel_crtc;
skl_ddb_get_hw_state(dev_priv, ddb);
list_for_each_entry(crtc, &dev->mode_config.crtc_list, head)
@ -4059,23 +4058,6 @@ void skl_wm_get_hw_state(struct drm_device *dev)
/* Easy/common case; just sanitize DDB now if everything off */
memset(ddb, 0, sizeof(*ddb));
}
/* Calculate plane data rates */
for_each_intel_crtc(dev, intel_crtc) {
struct intel_crtc_state *cstate = intel_crtc->config;
struct intel_plane *intel_plane;
for_each_intel_plane_on_crtc(dev, intel_crtc, intel_plane) {
const struct drm_plane_state *pstate =
intel_plane->base.state;
int id = skl_wm_plane_id(intel_plane);
cstate->wm.skl.plane_data_rate[id] =
skl_plane_relative_data_rate(cstate, pstate, 0);
cstate->wm.skl.plane_y_data_rate[id] =
skl_plane_relative_data_rate(cstate, pstate, 1);
}
}
}
static void ilk_pipe_wm_get_hw_state(struct drm_crtc *crtc)