diff options
Diffstat (limited to 'src/gallium/drivers/nv50/nv50_query.c')
| -rw-r--r-- | src/gallium/drivers/nv50/nv50_query.c | 134 |
1 files changed, 134 insertions, 0 deletions
diff --git a/src/gallium/drivers/nv50/nv50_query.c b/src/gallium/drivers/nv50/nv50_query.c new file mode 100644 index 00000000000..20745ceab8b --- /dev/null +++ b/src/gallium/drivers/nv50/nv50_query.c @@ -0,0 +1,134 @@ +/* + * 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_winsys *ws = pipe->winsys; + struct nv50_query *q = CALLOC_STRUCT(nv50_query); + + assert (q->type == PIPE_QUERY_OCCLUSION_COUNTER); + q->type = type; + + q->buffer = ws->buffer_create(ws, 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(pipe->screen, &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); + + WAIT_RING (chan, 5); + BEGIN_RING(chan, tesla, 0x1b00, 4); + OUT_RELOCh(chan, q->buffer, 0, NOUVEAU_BO_VRAM | NOUVEAU_BO_WR); + OUT_RELOCl(chan, q->buffer, 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; +} |