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drm/i915: use crtc_htotal in watermark calculations to match fastboot v2

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This value is more correct, and matches what we read out in the fastboot
code.  Without this, the watermark code will panic after the first mode
setting activity after a fastboot.

v2: fix up HSW ->clock usage too (Ville)

Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Jesse Barnes 2013-11-27 11:10:26 -08:00 committed by Daniel Vetter
parent a415d35564
commit fec8cba306
1 changed files with 8 additions and 7 deletions
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15
drivers/gpu/drm/i915/intel_pm.c
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@ -1180,7 +1180,7 @@ static bool g4x_compute_wm0(struct drm_device *dev,
adjusted_mode = &to_intel_crtc(crtc)->config.adjusted_mode;
clock = adjusted_mode->crtc_clock;
htotal = adjusted_mode->htotal;
htotal = adjusted_mode->crtc_htotal;
hdisplay = to_intel_crtc(crtc)->config.pipe_src_w;
pixel_size = crtc->fb->bits_per_pixel / 8;
@ -1267,7 +1267,7 @@ static bool g4x_compute_srwm(struct drm_device *dev,
crtc = intel_get_crtc_for_plane(dev, plane);
adjusted_mode = &to_intel_crtc(crtc)->config.adjusted_mode;
clock = adjusted_mode->crtc_clock;
htotal = adjusted_mode->htotal;
htotal = adjusted_mode->crtc_htotal;
hdisplay = to_intel_crtc(crtc)->config.pipe_src_w;
pixel_size = crtc->fb->bits_per_pixel / 8;
@ -1498,7 +1498,7 @@ static void i965_update_wm(struct drm_crtc *unused_crtc)
const struct drm_display_mode *adjusted_mode =
&to_intel_crtc(crtc)->config.adjusted_mode;
int clock = adjusted_mode->crtc_clock;
int htotal = adjusted_mode->htotal;
int htotal = adjusted_mode->crtc_htotal;
int hdisplay = to_intel_crtc(crtc)->config.pipe_src_w;
int pixel_size = crtc->fb->bits_per_pixel / 8;
unsigned long line_time_us;
@ -1624,7 +1624,7 @@ static void i9xx_update_wm(struct drm_crtc *unused_crtc)
const struct drm_display_mode *adjusted_mode =
&to_intel_crtc(enabled)->config.adjusted_mode;
int clock = adjusted_mode->crtc_clock;
int htotal = adjusted_mode->htotal;
int htotal = adjusted_mode->crtc_htotal;
int hdisplay = to_intel_crtc(enabled)->config.pipe_src_w;
int pixel_size = enabled->fb->bits_per_pixel / 8;
unsigned long line_time_us;
@ -1776,7 +1776,7 @@ static bool ironlake_compute_srwm(struct drm_device *dev, int level, int plane,
crtc = intel_get_crtc_for_plane(dev, plane);
adjusted_mode = &to_intel_crtc(crtc)->config.adjusted_mode;
clock = adjusted_mode->crtc_clock;
htotal = adjusted_mode->htotal;
htotal = adjusted_mode->crtc_htotal;
hdisplay = to_intel_crtc(crtc)->config.pipe_src_w;
pixel_size = crtc->fb->bits_per_pixel / 8;
@ -2469,8 +2469,9 @@ hsw_compute_linetime_wm(struct drm_device *dev, struct drm_crtc *crtc)
/* The WM are computed with base on how long it takes to fill a single
* row at the given clock rate, multiplied by 8.
* */
linetime = DIV_ROUND_CLOSEST(mode->htotal * 1000 * 8, mode->clock);
ips_linetime = DIV_ROUND_CLOSEST(mode->htotal * 1000 * 8,
linetime = DIV_ROUND_CLOSEST(mode->crtc_htotal * 1000 * 8,
mode->crtc_clock);
ips_linetime = DIV_ROUND_CLOSEST(mode->crtc_htotal * 1000 * 8,
intel_ddi_get_cdclk_freq(dev_priv));
return PIPE_WM_LINETIME_IPS_LINETIME(ips_linetime) |