diff options
| author | Jesse Barnes <jbarnes@virtuousgeek.org> | 2010-02-05 23:42:41 +0300 |
|---|---|---|
| committer | Eric Anholt <eric@anholt.net> | 2010-02-22 19:46:57 +0300 |
| commit | b5e50c3f56ee4aa0d0168eab5ece413ac5df76aa (patch) | |
| tree | eb6ee1777dc52a00d3981e4a7a208bbe6a136263 /drivers/gpu/drm/i915/intel_display.c | |
| parent | 357b13c3e498bb658f511f91a9e4f09c9553be6e (diff) | |
| download | linux-b5e50c3f56ee4aa0d0168eab5ece413ac5df76aa.tar.xz | |
drm/i915: provide FBC status in debugfs
Tools like powertop want to check the current FBC status and report it
to the user. So add a debugfs file indicating whether FBC is enabled,
and if not, why.
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Eric Anholt <eric@anholt.net>
Diffstat (limited to 'drivers/gpu/drm/i915/intel_display.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_display.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index e879885f4754..a483f41e9f22 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -1188,25 +1188,30 @@ static void intel_update_fbc(struct drm_crtc *crtc, if (intel_fb->obj->size > dev_priv->cfb_size) { DRM_DEBUG_KMS("framebuffer too large, disabling " "compression\n"); + dev_priv->no_fbc_reason = FBC_STOLEN_TOO_SMALL; goto out_disable; } if ((mode->flags & DRM_MODE_FLAG_INTERLACE) || (mode->flags & DRM_MODE_FLAG_DBLSCAN)) { DRM_DEBUG_KMS("mode incompatible with compression, " "disabling\n"); + dev_priv->no_fbc_reason = FBC_UNSUPPORTED_MODE; goto out_disable; } if ((mode->hdisplay > 2048) || (mode->vdisplay > 1536)) { DRM_DEBUG_KMS("mode too large for compression, disabling\n"); + dev_priv->no_fbc_reason = FBC_MODE_TOO_LARGE; goto out_disable; } if ((IS_I915GM(dev) || IS_I945GM(dev)) && plane != 0) { DRM_DEBUG_KMS("plane not 0, disabling compression\n"); + dev_priv->no_fbc_reason = FBC_BAD_PLANE; goto out_disable; } if (obj_priv->tiling_mode != I915_TILING_X) { DRM_DEBUG_KMS("framebuffer not tiled, disabling compression\n"); + dev_priv->no_fbc_reason = FBC_NOT_TILED; goto out_disable; } |