diff options
Diffstat (limited to 'src/gallium/auxiliary/pipebuffer')
| -rw-r--r-- | src/gallium/auxiliary/pipebuffer/Makefile | 1 | ||||
| -rw-r--r-- | src/gallium/auxiliary/pipebuffer/SConscript | 1 | ||||
| -rw-r--r-- | src/gallium/auxiliary/pipebuffer/pb_buffer_fenced.c | 100 | ||||
| -rw-r--r-- | src/gallium/auxiliary/pipebuffer/pb_bufmgr.h | 4 | ||||
| -rw-r--r-- | src/gallium/auxiliary/pipebuffer/pb_validate.c | 153 | ||||
| -rw-r--r-- | src/gallium/auxiliary/pipebuffer/pb_validate.h | 91 |
6 files changed, 298 insertions, 52 deletions
diff --git a/src/gallium/auxiliary/pipebuffer/Makefile b/src/gallium/auxiliary/pipebuffer/Makefile index d654dbcc91..ff09011b66 100644 --- a/src/gallium/auxiliary/pipebuffer/Makefile +++ b/src/gallium/auxiliary/pipebuffer/Makefile @@ -11,6 +11,7 @@ C_SOURCES = \ pb_bufmgr_mm.c \ pb_bufmgr_pool.c \ pb_bufmgr_slab.c \ + pb_validate.c \ pb_winsys.c include ../../Makefile.template diff --git a/src/gallium/auxiliary/pipebuffer/SConscript b/src/gallium/auxiliary/pipebuffer/SConscript index 604a217982..9db0c0eae3 100644 --- a/src/gallium/auxiliary/pipebuffer/SConscript +++ b/src/gallium/auxiliary/pipebuffer/SConscript @@ -10,6 +10,7 @@ pipebuffer = env.ConvenienceLibrary( 'pb_bufmgr_mm.c', 'pb_bufmgr_pool.c', 'pb_bufmgr_slab.c', + 'pb_validate.c', 'pb_winsys.c', ]) diff --git a/src/gallium/auxiliary/pipebuffer/pb_buffer_fenced.c b/src/gallium/auxiliary/pipebuffer/pb_buffer_fenced.c index 2fa0842971..7f236887a9 100644 --- a/src/gallium/auxiliary/pipebuffer/pb_buffer_fenced.c +++ b/src/gallium/auxiliary/pipebuffer/pb_buffer_fenced.c @@ -168,6 +168,28 @@ _fenced_buffer_remove(struct fenced_buffer *fenced_buf) } +static INLINE enum pipe_error +_fenced_buffer_finish(struct fenced_buffer *fenced_buf) +{ + struct fenced_buffer_list *fenced_list = fenced_buf->list; + struct pipe_winsys *winsys = fenced_list->winsys; + + debug_warning("waiting for GPU"); + + assert(fenced_buf->fence); + if(fenced_buf->fence) { + if(winsys->fence_finish(winsys, fenced_buf->fence, 0) != 0) { + return PIPE_ERROR; + } + /* Remove from the fenced list */ + _fenced_buffer_remove(fenced_buf); /* TODO: remove consequents */ + } + + fenced_buf->flags &= ~PIPE_BUFFER_USAGE_GPU_READ_WRITE; + return PIPE_OK; +} + + /** * Free as many fenced buffers from the list head as possible. */ @@ -207,40 +229,6 @@ _fenced_buffer_list_check_free(struct fenced_buffer_list *fenced_list, } -/** - * Serialize writes, but allow concurrent reads. - */ -static INLINE enum pipe_error -fenced_buffer_serialize(struct fenced_buffer *fenced_buf, unsigned flags) -{ - struct fenced_buffer_list *fenced_list = fenced_buf->list; - struct pipe_winsys *winsys = fenced_list->winsys; - - /* Allow concurrent reads */ - if(((fenced_buf->flags | flags) & PIPE_BUFFER_USAGE_WRITE) == 0) - return PIPE_OK; - - /* Wait for the CPU to finish */ - if(fenced_buf->mapcount) { - /* FIXME: Use thread conditions variables to signal when mapcount - * reaches zero */ - debug_warning("attemp to write concurrently to buffer"); - /* XXX: we must not fail here in order to support texture mipmap generation - return PIPE_ERROR_RETRY; - */ - } - - /* Wait for the GPU to finish */ - if(fenced_buf->fence) { - if(winsys->fence_finish(winsys, fenced_buf->fence, 0) != 0) - return PIPE_ERROR_RETRY; - _fenced_buffer_remove(fenced_buf); - } - - return PIPE_OK; -} - - static void fenced_buffer_destroy(struct pb_buffer *buf) { @@ -280,15 +268,28 @@ fenced_buffer_map(struct pb_buffer *buf, { struct fenced_buffer *fenced_buf = fenced_buffer(buf); void *map; - assert((flags & ~PIPE_BUFFER_USAGE_CPU_READ_WRITE) == 0); + + assert(!(flags & ~PIPE_BUFFER_USAGE_CPU_READ_WRITE)); + flags &= PIPE_BUFFER_USAGE_CPU_READ_WRITE; - if(fenced_buffer_serialize(fenced_buf, flags) != PIPE_OK) - return NULL; + /* Check for GPU read/write access */ + if(fenced_buf->flags & PIPE_BUFFER_USAGE_GPU_WRITE) { + /* Wait for the GPU to finish writing */ + _fenced_buffer_finish(fenced_buf); + } + + /* Check for CPU write access (read is OK) */ + if(fenced_buf->flags & PIPE_BUFFER_USAGE_CPU_READ_WRITE) { + /* this is legal -- just for debugging */ + debug_warning("concurrent CPU writes"); + } map = pb_map(fenced_buf->buffer, flags); - if(map) + if(map) { ++fenced_buf->mapcount; - fenced_buf->flags |= flags & PIPE_BUFFER_USAGE_CPU_READ_WRITE; + fenced_buf->flags |= flags; + } + return map; } @@ -298,10 +299,12 @@ fenced_buffer_unmap(struct pb_buffer *buf) { struct fenced_buffer *fenced_buf = fenced_buffer(buf); assert(fenced_buf->mapcount); - pb_unmap(fenced_buf->buffer); - --fenced_buf->mapcount; - if(!fenced_buf->mapcount) - fenced_buf->flags &= ~PIPE_BUFFER_USAGE_CPU_READ_WRITE; + if(fenced_buf->mapcount) { + pb_unmap(fenced_buf->buffer); + --fenced_buf->mapcount; + if(!fenced_buf->mapcount) + fenced_buf->flags &= ~PIPE_BUFFER_USAGE_CPU_READ_WRITE; + } } @@ -334,8 +337,10 @@ fenced_buffer_create(struct fenced_buffer_list *fenced_list, return NULL; buf = CALLOC_STRUCT(fenced_buffer); - if(!buf) + if(!buf) { + pb_reference(&buffer, NULL); return NULL; + } buf->base.base.refcount = 1; buf->base.base.alignment = buffer->base.alignment; @@ -374,7 +379,7 @@ buffer_fence(struct pb_buffer *buf, fenced_list = fenced_buf->list; winsys = fenced_list->winsys; - if(fence == fenced_buf->fence) { + if(!fence || fence == fenced_buf->fence) { /* Handle the same fence case specially, not only because it is a fast * path, but mostly to avoid serializing two writes with the same fence, * as that would bring the hardware down to synchronous operation without @@ -384,11 +389,6 @@ buffer_fence(struct pb_buffer *buf, return; } - if(fenced_buffer_serialize(fenced_buf, flags) != PIPE_OK) { - /* FIXME: propagate error */ - (void)0; - } - _glthread_LOCK_MUTEX(fenced_list->mutex); if (fenced_buf->fence) _fenced_buffer_remove(fenced_buf); diff --git a/src/gallium/auxiliary/pipebuffer/pb_bufmgr.h b/src/gallium/auxiliary/pipebuffer/pb_bufmgr.h index 8de286e3f9..f6cc7a525b 100644 --- a/src/gallium/auxiliary/pipebuffer/pb_bufmgr.h +++ b/src/gallium/auxiliary/pipebuffer/pb_bufmgr.h @@ -50,7 +50,8 @@ #define PB_BUFMGR_H_ -#include <stddef.h> +#include "pipe/p_compiler.h" +#include "pipe/p_error.h" #ifdef __cplusplus @@ -68,7 +69,6 @@ struct pipe_winsys; */ struct pb_manager { - /* XXX: we will likely need more allocation flags */ struct pb_buffer * (*create_buffer)( struct pb_manager *mgr, size_t size, diff --git a/src/gallium/auxiliary/pipebuffer/pb_validate.c b/src/gallium/auxiliary/pipebuffer/pb_validate.c new file mode 100644 index 0000000000..362fd896f3 --- /dev/null +++ b/src/gallium/auxiliary/pipebuffer/pb_validate.c @@ -0,0 +1,153 @@ +/************************************************************************** + * + * Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas. + * All Rights Reserved. + * + * 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, sub license, 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 (including the + * next paragraph) 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 NON-INFRINGEMENT. + * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS 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. + * + **************************************************************************/ + +/** + * @file + * Buffer validation. + * + * @author Jose Fonseca <jrfonseca@tungstengraphics.com> + */ + + +#include "pipe/p_compiler.h" +#include "pipe/p_error.h" +#include "pipe/p_util.h" +#include "pipe/p_debug.h" + +#include "pb_buffer.h" +#include "pb_buffer_fenced.h" +#include "pb_validate.h" + + +#define PB_VALIDATE_INITIAL_SIZE 1 /* 512 */ + + +struct pb_validate +{ + struct pb_buffer **buffers; + unsigned used; + unsigned size; +}; + + +enum pipe_error +pb_validate_add_buffer(struct pb_validate *vl, + struct pb_buffer *buf) +{ + assert(buf); + if(!buf) + return PIPE_ERROR; + + /* We only need to store one reference for each buffer, so avoid storing + * consecutive references for the same buffer. It might not be the more + * common pasttern, but it is easy to implement. + */ + if(vl->used && vl->buffers[vl->used - 1] == buf) { + return PIPE_OK; + } + + /* Grow the table */ + if(vl->used == vl->size) { + unsigned new_size; + struct pb_buffer **new_buffers; + + new_size = vl->size * 2; + if(!new_size) + return PIPE_ERROR_OUT_OF_MEMORY; + + new_buffers = (struct pb_buffer **)REALLOC(vl->buffers, + vl->size*sizeof(struct pb_buffer *), + new_size*sizeof(struct pb_buffer *)); + if(!new_buffers) + return PIPE_ERROR_OUT_OF_MEMORY; + + memset(new_buffers + vl->size, 0, (new_size - vl->size)*sizeof(struct pb_buffer *)); + + vl->size = new_size; + vl->buffers = new_buffers; + } + + assert(!vl->buffers[vl->used]); + pb_reference(&vl->buffers[vl->used], buf); + ++vl->used; + + return PIPE_OK; +} + + +enum pipe_error +pb_validate_validate(struct pb_validate *vl) +{ + /* FIXME: go through each buffer, ensure its not mapped, its address is + * available -- requires a new pb_buffer interface */ + return PIPE_OK; +} + + +void +pb_validate_fence(struct pb_validate *vl, + struct pipe_fence_handle *fence) +{ + unsigned i; + for(i = 0; i < vl->used; ++i) { + buffer_fence(vl->buffers[i], fence); + pb_reference(&vl->buffers[i], NULL); + } + vl->used = 0; +} + + +void +pb_validate_destroy(struct pb_validate *vl) +{ + unsigned i; + for(i = 0; i < vl->used; ++i) + pb_reference(&vl->buffers[i], NULL); + FREE(vl->buffers); + FREE(vl); +} + + +struct pb_validate * +pb_validate_create() +{ + struct pb_validate *vl; + + vl = CALLOC_STRUCT(pb_validate); + if(!vl) + return NULL; + + vl->size = PB_VALIDATE_INITIAL_SIZE; + vl->buffers = (struct pb_buffer **)CALLOC(vl->size, sizeof(struct pb_buffer *)); + if(!vl->buffers) { + FREE(vl); + return NULL; + } + + return vl; +} + diff --git a/src/gallium/auxiliary/pipebuffer/pb_validate.h b/src/gallium/auxiliary/pipebuffer/pb_validate.h new file mode 100644 index 0000000000..3db1d5330b --- /dev/null +++ b/src/gallium/auxiliary/pipebuffer/pb_validate.h @@ -0,0 +1,91 @@ +/************************************************************************** + * + * Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas. + * All Rights Reserved. + * + * 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, sub license, 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 (including the + * next paragraph) 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 NON-INFRINGEMENT. + * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS 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. + * + **************************************************************************/ + +/** + * @file + * Buffer validation. + * + * @author Jose Fonseca <jrfonseca@tungstengraphics.com> + */ + +#ifndef PB_VALIDATE_H_ +#define PB_VALIDATE_H_ + + +#include "pipe/p_compiler.h" +#include "pipe/p_error.h" + +#ifdef __cplusplus +extern "C" { +#endif + + +struct pb_buffer; +struct pipe_fence_handle; + + +/** + * Buffer validation list. + * + * It holds a list of buffers to be validated and fenced when flushing. + */ +struct pb_validate; + + +enum pipe_error +pb_validate_add_buffer(struct pb_validate *vl, + struct pb_buffer *buf); + +/** + * Validate all buffers for hardware access. + * + * Should be called right before issuing commands to the hardware. + */ +enum pipe_error +pb_validate_validate(struct pb_validate *vl); + +/** + * Fence all buffers and clear the list. + * + * Should be called right before issuing commands to the hardware. + */ +void +pb_validate_fence(struct pb_validate *vl, + struct pipe_fence_handle *fence); + +struct pb_validate * +pb_validate_create(void); + +void +pb_validate_destroy(struct pb_validate *vl); + + +#ifdef __cplusplus +} +#endif + +#endif /*PB_VALIDATE_H_*/ |