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nouveau: increase max order of suballocated buffers by 1

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This is really a hack to make TF2 (considerably, up to 20 -> 70 fps
at low res) faster.
This commit is contained in:
Christoph Bumiller 2013-01-08 12:35:25 +01:00
parent 48a45ec24a
commit 39fe03e2de
1 changed files with 9 additions and 2 deletions
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11
src/gallium/drivers/nouveau/nouveau_mm.c
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@ -9,8 +9,15 @@
#include "nouveau_screen.h"
#include "nouveau_mm.h"
/* TODO: Higher orders can waste a lot of space for npot size buffers, should
* add an extra cache for such buffer objects.
*
* HACK: Max order == 21 to accommodate TF2's 1.5 MiB, frequently reallocated
* vertex buffer (VM flush (?) decreases performance dramatically).
*/
#define MM_MIN_ORDER 7 /* >= 6 to not violate ARB_map_buffer_alignment */
#define MM_MAX_ORDER 20
#define MM_MAX_ORDER 21
#define MM_NUM_BUCKETS (MM_MAX_ORDER - MM_MIN_ORDER + 1)
@ -102,7 +109,7 @@ mm_default_slab_size(unsigned chunk_order)
{
static const int8_t slab_order[MM_MAX_ORDER - MM_MIN_ORDER + 1] =
{
12, 12, 13, 14, 14, 17, 17, 17, 17, 19, 19, 20, 21, 22
12, 12, 13, 14, 14, 17, 17, 17, 17, 19, 19, 20, 21, 22, 22
};
assert(chunk_order <= MM_MAX_ORDER && chunk_order >= MM_MIN_ORDER);