Commit c3add4b6 authored by Chris Wilson's avatar Chris Wilson

Revert "drm/i915: Warn if we run out of FIFO space for a mode"

This reverts commit b9421ae8.

This warning was so prelevant, even for apparently working machines,
that it was just causing fear, anxiety and panic.

The root cause still remains, so we will add some better debugging when
we focus on fixing it.

Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=17021Reported-by: default avatarMaciej Rutecki <maciej.rutecki@gmail.com>
Signed-off-by: default avatarChris Wilson <chris@chris-wilson.co.uk>
parent 12e8ba25
...@@ -2767,14 +2767,8 @@ static unsigned long intel_calculate_wm(unsigned long clock_in_khz, ...@@ -2767,14 +2767,8 @@ static unsigned long intel_calculate_wm(unsigned long clock_in_khz,
/* Don't promote wm_size to unsigned... */ /* Don't promote wm_size to unsigned... */
if (wm_size > (long)wm->max_wm) if (wm_size > (long)wm->max_wm)
wm_size = wm->max_wm; wm_size = wm->max_wm;
if (wm_size <= 0) { if (wm_size <= 0)
wm_size = wm->default_wm; wm_size = wm->default_wm;
DRM_ERROR("Insufficient FIFO for plane, expect flickering:"
" entries required = %ld, available = %lu.\n",
entries_required + wm->guard_size,
wm->fifo_size);
}
return wm_size; return wm_size;
} }
......
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