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/*
* Copyright 2008 Ben Skeggs
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
* OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#include "pipe/p_context.h"
#include "pipe/p_inlines.h"
#include "nv50_context.h"
struct nv50_query {
struct pipe_buffer *buffer;
unsigned type;
boolean ready;
uint64_t result;
};
static INLINE struct nv50_query *
nv50_query(struct pipe_query *pipe)
{
return (struct nv50_query *)pipe;
}
static struct pipe_query *
nv50_query_create(struct pipe_context *pipe, unsigned type)
{
struct pipe_screen *screen = pipe->screen;
struct nv50_query *q = CALLOC_STRUCT(nv50_query);
assert (q->type == PIPE_QUERY_OCCLUSION_COUNTER);
q->type = type;
q->buffer = screen->buffer_create(screen, 256, 0, 16);
if (!q->buffer) {
FREE(q);
return NULL;
}
return (struct pipe_query *)q;
}
static void
nv50_query_destroy(struct pipe_context *pipe, struct pipe_query *pq)
{
struct nv50_query *q = nv50_query(pq);
if (q) {
pipe_buffer_reference(&q->buffer, NULL);
FREE(q);
}
}
static void
nv50_query_begin(struct pipe_context *pipe, struct pipe_query *pq)
{
struct nv50_context *nv50 = nv50_context(pipe);
struct nouveau_channel *chan = nv50->screen->nvws->channel;
struct nouveau_grobj *tesla = nv50->screen->tesla;
struct nv50_query *q = nv50_query(pq);
BEGIN_RING(chan, tesla, 0x1530, 1);
OUT_RING (chan, 1);
BEGIN_RING(chan, tesla, 0x1514, 1);
OUT_RING (chan, 1);
q->ready = FALSE;
}
static void
nv50_query_end(struct pipe_context *pipe, struct pipe_query *pq)
{
struct nv50_context *nv50 = nv50_context(pipe);
struct nouveau_channel *chan = nv50->screen->nvws->channel;
struct nouveau_grobj *tesla = nv50->screen->tesla;
struct nv50_query *q = nv50_query(pq);
struct nouveau_bo *bo = nv50->screen->nvws->get_bo(q->buffer);
WAIT_RING (chan, 5);
BEGIN_RING(chan, tesla, 0x1b00, 4);
OUT_RELOCh(chan, bo, 0, NOUVEAU_BO_VRAM | NOUVEAU_BO_WR);
OUT_RELOCl(chan, bo, 0, NOUVEAU_BO_VRAM | NOUVEAU_BO_WR);
OUT_RING (chan, 0x00000000);
OUT_RING (chan, 0x0100f002);
FIRE_RING (chan);
}
static boolean
nv50_query_result(struct pipe_context *pipe, struct pipe_query *pq,
boolean wait, uint64_t *result)
{
struct pipe_winsys *ws = pipe->winsys;
struct nv50_query *q = nv50_query(pq);
/*XXX: Want to be able to return FALSE here instead of blocking
* until the result is available..
*/
if (!q->ready) {
uint32_t *map = ws->buffer_map(ws, q->buffer,
PIPE_BUFFER_USAGE_CPU_READ);
q->result = map[1];
q->ready = TRUE;
ws->buffer_unmap(ws, q->buffer);
}
*result = q->result;
return q->ready;
}
void
nv50_init_query_functions(struct nv50_context *nv50)
{
nv50->pipe.create_query = nv50_query_create;
nv50->pipe.destroy_query = nv50_query_destroy;
nv50->pipe.begin_query = nv50_query_begin;
nv50->pipe.end_query = nv50_query_end;
nv50->pipe.get_query_result = nv50_query_result;
}
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