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skl_ddb_allocation: Add checks on the DDB entries

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Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
This commit is contained in:
Damien Lespiau 2014-04-28 07:11:04 +01:00
parent 69a465d22a
commit f951943055
1 changed files with 33 additions and 1 deletions
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34
tests/skl_ddb_allocation.c
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@ -277,11 +277,38 @@ skl_allocate_pipe_ddb(struct drm_crtc *crtc,
}
static void skl_ddb_check_entry(struct skl_ddb_entry *entry, int16_t *cursor)
{
if (skl_ddb_entry_size(entry) == 0)
return;
/* check that ->start is the next available block */
if (entry->start <= *cursor)
printf("error: allocation overlaps previous block\n");
else if (entry->start > *cursor + 1)
printf("warning: allocation leaves a hole\n");
*cursor = entry->end;
}
static void skl_ddb_check_last_allocation(int16_t cursor)
{
uint16_t last_offset = SKL_DDB_SIZE - 1 - 4;
if (cursor < last_offset)
printf("warning: %d blocks not allocated\n",
last_offset - cursor);
else if (cursor > last_offset)
printf("error: allocation greater than available space\n");
}
static void skl_ddb_print(struct skl_ddb_allocation *ddb)
{
struct skl_ddb_entry *entry;
enum pipe pipe;
int plane;
int16_t cursor = -1;
printf("%-15s%8s%8s%8s\n", "", "Start", "End", "Size");
@ -290,17 +317,22 @@ static void skl_ddb_print(struct skl_ddb_allocation *ddb)
for_each_plane(pipe, plane) {
entry = &ddb->plane[pipe][plane];
printf(" Plane%-8d%8u%8u%8u\n", plane + 1,
entry->start, entry->end,
skl_ddb_entry_size(entry));
skl_ddb_check_entry(entry, &cursor);
}
entry = &ddb->cursor[pipe];
printf(" %-13s%8u%8u%8u\n", "Cursor", entry->start,
entry->end, skl_ddb_entry_size(entry));
skl_ddb_check_entry(entry, &cursor);
}
skl_ddb_check_last_allocation(cursor);
}
static struct drm_device drm_device;