diff options
Diffstat (limited to 'src/mesa/drivers/dri/common/dri_bufmgr_fake.c')
| -rw-r--r-- | src/mesa/drivers/dri/common/dri_bufmgr_fake.c | 882 |
1 files changed, 882 insertions, 0 deletions
diff --git a/src/mesa/drivers/dri/common/dri_bufmgr_fake.c b/src/mesa/drivers/dri/common/dri_bufmgr_fake.c new file mode 100644 index 0000000000..e0d23a3647 --- /dev/null +++ b/src/mesa/drivers/dri/common/dri_bufmgr_fake.c @@ -0,0 +1,882 @@ +/************************************************************************** + * + * Copyright 2006 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. + * + **************************************************************************/ + +/* Originally a fake version of the buffer manager so that we can + * prototype the changes in a driver fairly quickly, has been fleshed + * out to a fully functional interim solution. + * + * Basically wraps the old style memory management in the new + * programming interface, but is more expressive and avoids many of + * the bugs in the old texture manager. + */ +#include "mtypes.h" +#include "dri_bufmgr.h" +#include "drm.h" + +#include "simple_list.h" +#include "mm.h" +#include "imports.h" + +#if 0 +#define DBG(...) _mesa_printf(__VA_ARGS__) +#else +#define DBG(...) +#endif + +/* Internal flags: + */ +#define BM_NO_BACKING_STORE 0x00000001 +#define BM_NO_FENCE_SUBDATA 0x00000002 +#define BM_PINNED 0x00000004 + +/* Wrapper around mm.c's mem_block, which understands that you must + * wait for fences to expire before memory can be freed. This is + * specific to our use of memcpy for uploads - an upload that was + * processed through the command queue wouldn't need to care about + * fences. + */ +struct block { + struct block *next, *prev; + struct mem_block *mem; /* BM_MEM_AGP */ + + unsigned on_hardware:1; + unsigned fenced:1; + + unsigned fence; /* BM_MEM_AGP, Split to read_fence, write_fence */ + + dri_bo *bo; + void *virtual; +}; + +typedef struct _bufmgr_fake { + dri_bufmgr bufmgr; + + _glthread_Mutex mutex; /**< for thread safety */ + + unsigned long low_offset; + unsigned long size; + void *virtual; + + struct mem_block *heap; + struct block lru; /* only allocated, non-fence-pending blocks here */ + + unsigned buf_nr; /* for generating ids */ + + struct block on_hardware; /* after bmValidateBuffers */ + struct block fenced; /* after bmFenceBuffers (mi_flush, emit irq, write dword) */ + /* then to bufmgr->lru or free() */ + + unsigned int last_fence; + + unsigned fail:1; + unsigned need_fence:1; + GLboolean thrashing; + + /** + * Driver callback to emit a fence, returning the cookie. + * + * Currently, this also requires that a write flush be emitted before + * emitting the fence, but this should change. + */ + unsigned int (*fence_emit)(void *private); + /** Driver callback to wait for a fence cookie to have passed. */ + int (*fence_wait)(void *private, unsigned int fence_cookie); + /** Driver-supplied argument to driver callbacks */ + void *driver_priv; +} dri_bufmgr_fake; + +typedef struct _dri_bo_fake { + dri_bo bo; + + unsigned id; /* debug only */ + const char *name; + + unsigned dirty:1; + unsigned int refcount; + /* Flags may consist of any of the DRM_BO flags, plus + * DRM_BO_NO_BACKING_STORE and BM_NO_FENCE_SUBDATA, which are the first two + * driver private flags. + */ + unsigned int flags; + unsigned int alignment; + GLboolean is_static; + + struct block *block; + void *backing_store; + void (*invalidate_cb)(dri_bufmgr *bufmgr, void * ); + void *invalidate_ptr; +} dri_bo_fake; + +typedef struct _dri_fence_fake { + dri_fence fence; + + const char *name; + unsigned int refcount; + unsigned int fence_cookie; + GLboolean flushed; +} dri_fence_fake; + +static int clear_fenced(dri_bufmgr_fake *bufmgr_fake, + unsigned int fence_cookie); + +#define MAXFENCE 0x7fffffff + +static GLboolean FENCE_LTE( unsigned a, unsigned b ) +{ + if (a == b) + return GL_TRUE; + + if (a < b && b - a < (1<<24)) + return GL_TRUE; + + if (a > b && MAXFENCE - a + b < (1<<24)) + return GL_TRUE; + + return GL_FALSE; +} + +static unsigned int +_fence_emit_internal(dri_bufmgr_fake *bufmgr_fake) +{ + bufmgr_fake->last_fence = bufmgr_fake->fence_emit(bufmgr_fake->driver_priv); + return bufmgr_fake->last_fence; +} + +static void +_fence_wait_internal(dri_bufmgr_fake *bufmgr_fake, unsigned int cookie) +{ + int ret; + + ret = bufmgr_fake->fence_wait(bufmgr_fake->driver_priv, cookie); + if (ret != 0) { + _mesa_printf("%s:%d: Error %d waiting for fence.\n", + __FILE__, __LINE__); + abort(); + } + clear_fenced(bufmgr_fake, cookie); +} + +static GLboolean +_fence_test(dri_bufmgr_fake *bufmgr_fake, unsigned fence) +{ + /* Slight problem with wrap-around: + */ + return fence == 0 || FENCE_LTE(fence, bufmgr_fake->last_fence); +} + +/** + * Allocate a memory manager block for the buffer. + */ +static GLboolean +alloc_block(dri_bo *bo) +{ + dri_bo_fake *bo_fake = (dri_bo_fake *)bo; + dri_bufmgr_fake *bufmgr_fake= (dri_bufmgr_fake *)bo->bufmgr; + struct block *block = (struct block *)calloc(sizeof *block, 1); + unsigned int align_log2 = ffs(bo_fake->alignment); + GLuint sz; + + if (!block) + return GL_FALSE; + + sz = (bo->size + bo_fake->alignment - 1) & ~(bo_fake->alignment - 1); + + block->mem = mmAllocMem(bufmgr_fake->heap, sz, align_log2, 0); + if (!block->mem) { + free(block); + return GL_FALSE; + } + + make_empty_list(block); + + /* Insert at head or at tail??? + */ + insert_at_tail(&bufmgr_fake->lru, block); + + block->virtual = bufmgr_fake->virtual + + block->mem->ofs - bufmgr_fake->low_offset; + block->bo = bo; + + bo_fake->block = block; + + return GL_TRUE; +} + +/* Release the card storage associated with buf: + */ +static void free_block(dri_bufmgr_fake *bufmgr_fake, struct block *block) +{ + DBG("free block %p\n", block); + + if (!block) + return; + + if (block->on_hardware) { + block->bo = NULL; + } + else if (block->fenced) { + block->bo = NULL; + } + else { + DBG(" - free immediately\n"); + remove_from_list(block); + + mmFreeMem(block->mem); + free(block); + } +} + +static void +alloc_backing_store(dri_bo *bo) +{ + dri_bo_fake *bo_fake = (dri_bo_fake *)bo; + assert(!bo_fake->backing_store); + assert(!(bo_fake->flags & (BM_PINNED|BM_NO_BACKING_STORE))); + + bo_fake->backing_store = ALIGN_MALLOC(bo->size, 64); +} + +static void +free_backing_store(dri_bo *bo) +{ + dri_bo_fake *bo_fake = (dri_bo_fake *)bo; + assert(!(bo_fake->flags & (BM_PINNED|BM_NO_BACKING_STORE))); + + if (bo_fake->backing_store) { + ALIGN_FREE(bo_fake->backing_store); + bo_fake->backing_store = NULL; + } +} + +static void +set_dirty(dri_bo *bo) +{ + dri_bufmgr_fake *bufmgr_fake = (dri_bufmgr_fake *)bo->bufmgr; + dri_bo_fake *bo_fake = (dri_bo_fake *)bo; + + if (bo_fake->flags & BM_NO_BACKING_STORE) + bo_fake->invalidate_cb(&bufmgr_fake->bufmgr, bo_fake->invalidate_ptr); + + assert(!(bo_fake->flags & BM_PINNED)); + + DBG("set_dirty - buf %d\n", bo_fake->id); + bo_fake->dirty = 1; +} + +static GLboolean +evict_lru(dri_bufmgr_fake *bufmgr_fake, GLuint max_fence) +{ + struct block *block, *tmp; + + DBG("%s\n", __FUNCTION__); + + foreach_s(block, tmp, &bufmgr_fake->lru) { + dri_bo_fake *bo_fake = (dri_bo_fake *)block->bo; + + if (bo_fake != NULL && (bo_fake->flags & BM_NO_FENCE_SUBDATA)) + continue; + + if (block->fence && max_fence && !FENCE_LTE(block->fence, max_fence)) + return 0; + + set_dirty(&bo_fake->bo); + bo_fake->block = NULL; + + free_block(bufmgr_fake, block); + return GL_TRUE; + } + + return GL_FALSE; +} + +#define foreach_s_rev(ptr, t, list) \ + for(ptr=(list)->prev,t=(ptr)->prev; list != ptr; ptr=t, t=(t)->prev) + +static GLboolean +evict_mru(dri_bufmgr_fake *bufmgr_fake) +{ + struct block *block, *tmp; + + DBG("%s\n", __FUNCTION__); + + foreach_s_rev(block, tmp, &bufmgr_fake->lru) { + dri_bo_fake *bo_fake = (dri_bo_fake *)block->bo; + + if (bo_fake && (bo_fake->flags & BM_NO_FENCE_SUBDATA)) + continue; + + set_dirty(&bo_fake->bo); + bo_fake->block = NULL; + + free_block(bufmgr_fake, block); + return GL_TRUE; + } + + return GL_FALSE; +} + +/** + * Removes all objects from the fenced list older than the given fence. + */ +static int clear_fenced(dri_bufmgr_fake *bufmgr_fake, + unsigned int fence_cookie) +{ + struct block *block, *tmp; + int ret = 0; + + foreach_s(block, tmp, &bufmgr_fake->fenced) { + assert(block->fenced); + + if (_fence_test(bufmgr_fake, block->fence)) { + + block->fenced = 0; + + if (!block->bo) { + DBG("delayed free: offset %x sz %x\n", + block->mem->ofs, block->mem->size); + remove_from_list(block); + mmFreeMem(block->mem); + free(block); + } + else { + DBG("return to lru: offset %x sz %x\n", + block->mem->ofs, block->mem->size); + move_to_tail(&bufmgr_fake->lru, block); + } + + ret = 1; + } + else { + /* Blocks are ordered by fence, so if one fails, all from + * here will fail also: + */ + break; + } + } + + DBG("%s: %d\n", __FUNCTION__, ret); + return ret; +} + +static void fence_blocks(dri_bufmgr_fake *bufmgr_fake, unsigned fence) +{ + struct block *block, *tmp; + + foreach_s (block, tmp, &bufmgr_fake->on_hardware) { + DBG("Fence block %p (sz 0x%x buf %p) with fence %d\n", block, + block->mem->size, block->bo, fence); + block->fence = fence; + + block->on_hardware = 0; + block->fenced = 1; + + /* Move to tail of pending list here + */ + move_to_tail(&bufmgr_fake->fenced, block); + } + + assert(is_empty_list(&bufmgr_fake->on_hardware)); +} + +static GLboolean evict_and_alloc_block(dri_bo *bo) +{ + dri_bufmgr_fake *bufmgr_fake = (dri_bufmgr_fake *)bo->bufmgr; + dri_bo_fake *bo_fake = (dri_bo_fake *)bo; + + assert(bo_fake->block == NULL); + + /* Search for already free memory: + */ + if (alloc_block(bo)) + return GL_TRUE; + + /* If we're not thrashing, allow lru eviction to dig deeper into + * recently used textures. We'll probably be thrashing soon: + */ + if (!bufmgr_fake->thrashing) { + while (evict_lru(bufmgr_fake, 0)) + if (alloc_block(bo)) + return GL_TRUE; + } + + /* Keep thrashing counter alive? + */ + if (bufmgr_fake->thrashing) + bufmgr_fake->thrashing = 20; + + /* Wait on any already pending fences - here we are waiting for any + * freed memory that has been submitted to hardware and fenced to + * become available: + */ + while (!is_empty_list(&bufmgr_fake->fenced)) { + GLuint fence = bufmgr_fake->fenced.next->fence; + _fence_wait_internal(bufmgr_fake, fence); + + if (alloc_block(bo)) + return GL_TRUE; + } + + if (!is_empty_list(&bufmgr_fake->on_hardware)) { + while (!is_empty_list(&bufmgr_fake->fenced)) { + GLuint fence = bufmgr_fake->fenced.next->fence; + _fence_wait_internal(bufmgr_fake, fence); + } + + if (!bufmgr_fake->thrashing) { + DBG("thrashing\n"); + } + bufmgr_fake->thrashing = 20; + + if (alloc_block(bo)) + return GL_TRUE; + } + + while (evict_mru(bufmgr_fake)) + if (alloc_block(bo)) + return GL_TRUE; + + DBG("%s 0x%x bytes failed\n", __FUNCTION__, bo->size); + + assert(is_empty_list(&bufmgr_fake->on_hardware)); + assert(is_empty_list(&bufmgr_fake->fenced)); + + return GL_FALSE; +} + +/*********************************************************************** + * Public functions + */ + +/** + * Wait for hardware idle by emitting a fence and waiting for it. + */ +static void +dri_bufmgr_fake_wait_idle(dri_bufmgr_fake *bufmgr_fake) +{ + unsigned int cookie; + + cookie = bufmgr_fake->fence_emit(bufmgr_fake->driver_priv); + _fence_wait_internal(bufmgr_fake, cookie); +} + +/* Specifically ignore texture memory sharing. + * -- just evict everything + * -- and wait for idle + */ +void +dri_bufmgr_fake_contended_lock_take(dri_bufmgr *bufmgr) +{ + dri_bufmgr_fake *bufmgr_fake = (dri_bufmgr_fake *)bufmgr; + + _glthread_LOCK_MUTEX(bufmgr_fake->mutex); + { + struct block *block, *tmp; + + bufmgr_fake->need_fence = 1; + bufmgr_fake->fail = 0; + + /* Wait for hardware idle. We don't know where acceleration has been + * happening, so we'll need to wait anyway before letting anything get + * put on the card again. + */ + dri_bufmgr_fake_wait_idle(bufmgr_fake); + + /* Check that we hadn't released the lock without having fenced the last + * set of buffers. + */ + assert(is_empty_list(&bufmgr_fake->fenced)); + assert(is_empty_list(&bufmgr_fake->on_hardware)); + + foreach_s(block, tmp, &bufmgr_fake->lru) { + assert(_fence_test(bufmgr_fake, block->fence)); + set_dirty(block->bo); + } + } + _glthread_UNLOCK_MUTEX(bufmgr_fake->mutex); +} + +static dri_bo * +dri_fake_bo_alloc(dri_bufmgr *bufmgr, const char *name, + unsigned long size, unsigned int alignment, + unsigned int location_mask) +{ + dri_bufmgr_fake *bufmgr_fake; + dri_bo_fake *bo_fake; + + bufmgr_fake = (dri_bufmgr_fake *)bufmgr; + + bo_fake = calloc(1, sizeof(*bo_fake)); + if (!bo_fake) + return NULL; + + bo_fake->bo.size = size; + bo_fake->bo.offset = -1; + bo_fake->bo.virtual = NULL; + bo_fake->bo.bufmgr = bufmgr; + bo_fake->refcount = 1; + + /* Alignment must be a power of two */ + assert((alignment & (alignment - 1)) == 0); + if (alignment == 0) + alignment = 1; + bo_fake->alignment = alignment; + bo_fake->id = ++bufmgr_fake->buf_nr; + bo_fake->name = name; + bo_fake->flags = 0; + bo_fake->is_static = GL_FALSE; + + DBG("drm_bo_alloc: (buf %d: %s, %d kb)\n", bo_fake->id, bo_fake->name, + bo_fake->bo.size / 1024); + + return &bo_fake->bo; +} + +static dri_bo * +dri_fake_bo_alloc_static(dri_bufmgr *bufmgr, const char *name, + unsigned long offset, unsigned long size, + void *virtual, unsigned int location_mask) +{ + dri_bufmgr_fake *bufmgr_fake; + dri_bo_fake *bo_fake; + + bufmgr_fake = (dri_bufmgr_fake *)bufmgr; + + bo_fake = calloc(1, sizeof(*bo_fake)); + if (!bo_fake) + return NULL; + + bo_fake->bo.size = size; + bo_fake->bo.offset = offset; + bo_fake->bo.virtual = virtual; + bo_fake->bo.bufmgr = bufmgr; + bo_fake->refcount = 1; + bo_fake->id = ++bufmgr_fake->buf_nr; + bo_fake->name = name; + bo_fake->flags = BM_PINNED | DRM_BO_FLAG_NO_MOVE; + bo_fake->is_static = GL_TRUE; + + DBG("drm_bo_alloc_static: (buf %d: %s, %d kb)\n", bo_fake->id, bo_fake->name, + bo_fake->bo.size / 1024); + + return &bo_fake->bo; +} + +static void +dri_fake_bo_reference(dri_bo *bo) +{ + dri_bufmgr_fake *bufmgr_fake = (dri_bufmgr_fake *)bo->bufmgr; + dri_bo_fake *bo_fake = (dri_bo_fake *)bo; + + _glthread_LOCK_MUTEX(bufmgr_fake->mutex); + bo_fake->refcount++; + _glthread_UNLOCK_MUTEX(bufmgr_fake->mutex); +} + +static void +dri_fake_bo_unreference(dri_bo *bo) +{ + dri_bufmgr_fake *bufmgr_fake = (dri_bufmgr_fake *)bo->bufmgr; + dri_bo_fake *bo_fake = (dri_bo_fake *)bo; + + if (!bo) + return; + + _glthread_LOCK_MUTEX(bufmgr_fake->mutex); + if (--bo_fake->refcount == 0) { + /* No remaining references, so free it */ + if (bo_fake->block) + free_block(bufmgr_fake, bo_fake->block); + free_backing_store(bo); + _glthread_UNLOCK_MUTEX(bufmgr_fake->mutex); + free(bo); + return; + } + _glthread_UNLOCK_MUTEX(bufmgr_fake->mutex); +} + +/** + * Map a buffer into bo->virtual, allocating either card memory space (If + * BM_NO_BACKING_STORE or BM_PINNED) or backing store, as necessary. + */ +static int +dri_fake_bo_map(dri_bo *bo, GLboolean write_enable) +{ + dri_bufmgr_fake *bufmgr_fake = (dri_bufmgr_fake *)bo->bufmgr; + dri_bo_fake *bo_fake = (dri_bo_fake *)bo; + + /* Static buffers are always mapped. */ + if (bo_fake->is_static) + return 0; + + _glthread_LOCK_MUTEX(bufmgr_fake->mutex); + { + DBG("drm_bo_map: (buf %d: %s, %d kb)\n", bo_fake->id, bo_fake->name, + bo_fake->bo.size / 1024); + + if (bo->virtual != NULL) { + _mesa_printf("%s: already mapped\n", __FUNCTION__); + abort(); + } + else if (bo_fake->flags & (BM_NO_BACKING_STORE|BM_PINNED)) { + + if (!bo_fake->block && !evict_and_alloc_block(bo)) { + DBG("%s: alloc failed\n", __FUNCTION__); + bufmgr_fake->fail = 1; + _glthread_UNLOCK_MUTEX(bufmgr_fake->mutex); + return 1; + } + else { + assert(bo_fake->block); + bo_fake->dirty = 0; + + if (!(bo_fake->flags & BM_NO_FENCE_SUBDATA)) + dri_bufmgr_fake_wait_idle(bufmgr_fake); + + bo->virtual = bo_fake->block->virtual; + } + } + else { + if (write_enable) + set_dirty(bo); + + if (bo_fake->backing_store == 0) + alloc_backing_store(bo); + + bo->virtual = bo_fake->backing_store; + } + } + _glthread_UNLOCK_MUTEX(bufmgr_fake->mutex); + return 0; +} + +static int +dri_fake_bo_unmap(dri_bo *bo) +{ + dri_bo_fake *bo_fake = (dri_bo_fake *)bo; + + /* Static buffers are always mapped. */ + if (bo_fake->is_static) + return 0; + + if (bo == NULL) + return 0; + + DBG("drm_bo_unmap: (buf %d: %s, %d kb)\n", bo_fake->id, bo_fake->name, + bo_fake->bo.size / 1024); + + bo->virtual = NULL; + + return 0; +} + +static int +dri_fake_bo_validate(dri_bo *bo, unsigned int flags) +{ + dri_bufmgr_fake *bufmgr_fake; + dri_bo_fake *bo_fake = (dri_bo_fake *)bo; + + /* XXX: Sanity-check whether we've already validated this one under + * different flags. See drmAddValidateItem(). + */ + + DBG("drm_bo_validate: (buf %d: %s, %d kb)\n", bo_fake->id, bo_fake->name, + bo_fake->bo.size / 1024); + bufmgr_fake = (dri_bufmgr_fake *)bo->bufmgr; + + _glthread_LOCK_MUTEX(bufmgr_fake->mutex); + { + if (bo_fake->is_static) { + /* Add it to the needs-fence list */ + bufmgr_fake->need_fence = 1; + _glthread_UNLOCK_MUTEX(bufmgr_fake->mutex); + return 0; + } + + /* Allocate the card memory */ + if (!bo_fake->block && !evict_and_alloc_block(bo)) { + bufmgr_fake->fail = 1; + _glthread_UNLOCK_MUTEX(bufmgr_fake->mutex); + DBG("Failed to validate buf %d:%s\n", bo_fake->id, bo_fake->name); + return -1; + } + + assert(bo_fake->block); + assert(bo_fake->block->bo == &bo_fake->bo); + + bo->offset = bo_fake->block->mem->ofs; + + /* Upload the buffer contents if necessary */ + if (bo_fake->dirty) { + DBG("Upload dirty buf %d:%s, sz %d offset 0x%x\n", bo_fake->id, + bo_fake->name, bo->size, bo_fake->block->mem->ofs); + + assert(!(bo_fake->flags & + (BM_NO_BACKING_STORE|BM_PINNED))); + + /* Actually, should be able to just wait for a fence on the memory, + * which we would be tracking when we free it. Waiting for idle is + * a sufficiently large hammer for now. + */ + dri_bufmgr_fake_wait_idle(bufmgr_fake); + + memcpy(bo_fake->block->virtual, bo_fake->backing_store, bo->size); + bo_fake->dirty = 0; + } + + bo_fake->block->on_hardware = 1; + move_to_tail(&bufmgr_fake->on_hardware, bo_fake->block); + + bufmgr_fake->need_fence = 1; + } + _glthread_UNLOCK_MUTEX(bufmgr_fake->mutex); + + return 0; +} + +static dri_fence * +dri_fake_fence_validated(dri_bufmgr *bufmgr, const char *name, + GLboolean flushed) +{ + dri_fence_fake *fence_fake; + dri_bufmgr_fake *bufmgr_fake = (dri_bufmgr_fake *)bufmgr; + unsigned int cookie; + + fence_fake = malloc(sizeof(*fence_fake)); + if (!fence_fake) + return NULL; + + fence_fake->refcount = 1; + fence_fake->name = name; + fence_fake->flushed = flushed; + fence_fake->fence.bufmgr = bufmgr; + + _glthread_LOCK_MUTEX(bufmgr_fake->mutex); + cookie = _fence_emit_internal(bufmgr_fake); + fence_fake->fence_cookie = cookie; + fence_blocks(bufmgr_fake, cookie); + _glthread_UNLOCK_MUTEX(bufmgr_fake->mutex); + + DBG("drm_fence_validated: 0x%08x cookie\n", fence_fake->fence_cookie); + + return &fence_fake->fence; +} + +static void +dri_fake_fence_reference(dri_fence *fence) +{ + dri_fence_fake *fence_fake = (dri_fence_fake *)fence; + dri_bufmgr_fake *bufmgr_fake = (dri_bufmgr_fake *)fence->bufmgr; + + _glthread_LOCK_MUTEX(bufmgr_fake->mutex); + ++fence_fake->refcount; + _glthread_UNLOCK_MUTEX(bufmgr_fake->mutex); +} + +static void +dri_fake_fence_unreference(dri_fence *fence) +{ + dri_fence_fake *fence_fake = (dri_fence_fake *)fence; + dri_bufmgr_fake *bufmgr_fake = (dri_bufmgr_fake *)fence->bufmgr; + + if (!fence) + return; + + _glthread_LOCK_MUTEX(bufmgr_fake->mutex); + if (--fence_fake->refcount == 0) { + _glthread_UNLOCK_MUTEX(bufmgr_fake->mutex); + free(fence); + return; + } + _glthread_UNLOCK_MUTEX(bufmgr_fake->mutex); +} + +static void +dri_fake_fence_wait(dri_fence *fence) +{ + dri_fence_fake *fence_fake = (dri_fence_fake *)fence; + dri_bufmgr_fake *bufmgr_fake = (dri_bufmgr_fake *)fence->bufmgr; + + DBG("drm_fence_wait: 0x%08x cookie\n", fence_fake->fence_cookie); + + _glthread_LOCK_MUTEX(bufmgr_fake->mutex); + _fence_wait_internal(bufmgr_fake, fence_fake->fence_cookie); + _glthread_UNLOCK_MUTEX(bufmgr_fake->mutex); +} + +static void +dri_fake_destroy(dri_bufmgr *bufmgr) +{ + dri_bufmgr_fake *bufmgr_fake = (dri_bufmgr_fake *)bufmgr; + + _glthread_DESTROY_MUTEX(bufmgr_fake->mutex); + mmDestroy(bufmgr_fake->heap); + free(bufmgr); +} + +dri_bufmgr * +dri_bufmgr_fake_init(unsigned long low_offset, void *low_virtual, + unsigned long size, + unsigned int (*fence_emit)(void *private), + int (*fence_wait)(void *private, unsigned int cookie), + void *driver_priv) +{ + dri_bufmgr_fake *bufmgr_fake; + + bufmgr_fake = calloc(1, sizeof(*bufmgr_fake)); + + /* Initialize allocator */ + make_empty_list(&bufmgr_fake->fenced); + make_empty_list(&bufmgr_fake->on_hardware); + make_empty_list(&bufmgr_fake->lru); + + bufmgr_fake->low_offset = low_offset; + bufmgr_fake->virtual = low_virtual; + bufmgr_fake->size = size; + bufmgr_fake->heap = mmInit(low_offset, size); + + _glthread_INIT_MUTEX(bufmgr_fake->mutex); + + /* Hook in methods */ + bufmgr_fake->bufmgr.bo_alloc = dri_fake_bo_alloc; + bufmgr_fake->bufmgr.bo_alloc_static = dri_fake_bo_alloc_static; + bufmgr_fake->bufmgr.bo_reference = dri_fake_bo_reference; + bufmgr_fake->bufmgr.bo_unreference = dri_fake_bo_unreference; + bufmgr_fake->bufmgr.bo_map = dri_fake_bo_map; + bufmgr_fake->bufmgr.bo_unmap = dri_fake_bo_unmap; + bufmgr_fake->bufmgr.bo_validate = dri_fake_bo_validate; + bufmgr_fake->bufmgr.fence_validated = dri_fake_fence_validated; + bufmgr_fake->bufmgr.fence_wait = dri_fake_fence_wait; + bufmgr_fake->bufmgr.fence_reference = dri_fake_fence_reference; + bufmgr_fake->bufmgr.fence_unreference = dri_fake_fence_unreference; + bufmgr_fake->bufmgr.destroy = dri_fake_destroy; + + bufmgr_fake->fence_emit = fence_emit; + bufmgr_fake->fence_wait = fence_wait; + bufmgr_fake->driver_priv = driver_priv; + + return &bufmgr_fake->bufmgr; +} |