diff options
| author | Andy Gross <andy.gross@ti.com> | 2015-08-12 11:24:38 +0300 |
|---|---|---|
| committer | Tomi Valkeinen <tomi.valkeinen@ti.com> | 2015-12-31 11:25:47 +0200 |
| commit | 0d6fa53fd80582cc0090fc1497545ab3e502bb5e (patch) | |
| tree | 2ad89e6b74d7674a5126783f4c95f696e63f6156 /drivers/gpu/drm/omapdrm/omap_dmm_tiler.c | |
| parent | 73d77107b8e5eba57e831b414de7eeb75a719646 (diff) | |
drm/omap: Use bitmaps for TILER placement
Modified Tiler placement to utilize bitmaps for bookkeeping and
all placement algorithms. This resulted in a substantial savings
in time for all Tiler reservation and free operations. Typical
savings are in the range of 28% decrease in time taken with larger
buffers showing a 80%+ decrease.
Signed-off-by: Andy Gross <andy.gross@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Diffstat (limited to 'drivers/gpu/drm/omapdrm/omap_dmm_tiler.c')
| -rw-r--r-- | drivers/gpu/drm/omapdrm/omap_dmm_tiler.c | 14 |
1 files changed, 8 insertions, 6 deletions
diff --git a/drivers/gpu/drm/omapdrm/omap_dmm_tiler.c b/drivers/gpu/drm/omapdrm/omap_dmm_tiler.c index 51554c959cac..dfebdc4aa0f2 100644 --- a/drivers/gpu/drm/omapdrm/omap_dmm_tiler.c +++ b/drivers/gpu/drm/omapdrm/omap_dmm_tiler.c @@ -363,6 +363,7 @@ struct tiler_block *tiler_reserve_2d(enum tiler_fmt fmt, uint16_t w, u32 min_align = 128; int ret; unsigned long flags; + size_t slot_bytes; BUG_ON(!validfmt(fmt)); @@ -371,13 +372,15 @@ struct tiler_block *tiler_reserve_2d(enum tiler_fmt fmt, uint16_t w, h = DIV_ROUND_UP(h, geom[fmt].slot_h); /* convert alignment to slots */ - min_align = max(min_align, (geom[fmt].slot_w * geom[fmt].cpp)); - align = ALIGN(align, min_align); - align /= geom[fmt].slot_w * geom[fmt].cpp; + slot_bytes = geom[fmt].slot_w * geom[fmt].cpp; + min_align = max(min_align, slot_bytes); + align = (align > min_align) ? ALIGN(align, min_align) : min_align; + align /= slot_bytes; block->fmt = fmt; - ret = tcm_reserve_2d(containers[fmt], w, h, align, &block->area); + ret = tcm_reserve_2d(containers[fmt], w, h, align, -1, slot_bytes, + &block->area); if (ret) { kfree(block); return ERR_PTR(-ENOMEM); @@ -739,8 +742,7 @@ static int omap_dmm_probe(struct platform_device *dev) programming during reill operations */ for (i = 0; i < omap_dmm->num_lut; i++) { omap_dmm->tcm[i] = sita_init(omap_dmm->container_width, - omap_dmm->container_height, - NULL); + omap_dmm->container_height); if (!omap_dmm->tcm[i]) { dev_err(&dev->dev, "failed to allocate container\n"); |