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lib/display: Check if we're trying to use the same pipe on 2 outputs

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Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
This commit is contained in:
Damien Lespiau 2014-02-06 16:05:19 +00:00
parent 65fef0a434
commit 162914b9ed
1 changed files with 25 additions and 1 deletions
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26
lib/igt_kms.c
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@ -978,10 +978,34 @@ void igt_display_fini(igt_display_t *display)
static void igt_display_refresh(igt_display_t *display) static void igt_display_refresh(igt_display_t *display)
{ {
int i; int i, j;
display->pipes_in_use = 0; display->pipes_in_use = 0;
/* Check that two outputs aren't trying to use the same pipe */
for (i = 0; i < display->n_outputs; i++) {
igt_output_t *a = &display->outputs[i];
if (a->pending_crtc_idx_mask == -1UL)
continue;
for (j = 0; j < display->n_outputs; j++) {
igt_output_t *b = &display->outputs[j];
if (i == j)
continue;
if (b->pending_crtc_idx_mask == -1UL)
continue;
igt_assert_f(a->pending_crtc_idx_mask !=
b->pending_crtc_idx_mask,
"%s and %s are both trying to use pipe %c\n",
igt_output_name(a), igt_output_name(b),
pipe_name(ffs(a->pending_crtc_idx_mask) - 1));
}
}
/* /*
* The pipe allocation has to be done in two phases: * The pipe allocation has to be done in two phases:
* - first, try to satisfy the outputs where a pipe has been specified * - first, try to satisfy the outputs where a pipe has been specified