From 5e27cd46c04a9e7b5904cc014bffd0f4daae31fe Mon Sep 17 00:00:00 2001 From: Michel Dänzer Date: Wed, 4 Mar 2009 11:58:48 +0100 Subject: gallium: Unify reference counting. The core reference counting code is centralized in p_refcnt.h. This has some consequences related to struct pipe_buffer: * The screen member of struct pipe_buffer must be initialized, or pipe_buffer_reference() will crash trying to destroy a buffer with reference count 0. u_simple_screen takes care of this, but I may have missed some of the drivers not using it. * Except for rare exceptions deep in winsys code, buffers must always be allocated via pipe_buffer_create() or via screen->*buffer_create() rather than via winsys->*buffer_create(). --- .../winsys/drm/intel/gem/intel_be_batchbuffer.c | 4 ++-- src/gallium/winsys/drm/intel/gem/intel_be_device.c | 19 +++++-------------- src/gallium/winsys/drm/intel/gem/intel_be_fence.h | 18 +++++++----------- .../winsys/drm/nouveau/common/nouveau_context.c | 7 +++---- .../winsys/drm/nouveau/common/nouveau_context.h | 2 +- .../winsys/drm/nouveau/common/nouveau_winsys_pipe.c | 6 +++--- src/gallium/winsys/drm/radeon/radeon_buffer.c | 10 +++++----- src/gallium/winsys/drm/radeon/radeon_drm.c | 3 ++- 8 files changed, 28 insertions(+), 41 deletions(-) (limited to 'src/gallium/winsys/drm') diff --git a/src/gallium/winsys/drm/intel/gem/intel_be_batchbuffer.c b/src/gallium/winsys/drm/intel/gem/intel_be_batchbuffer.c index 0137433785..d5e63c3bae 100644 --- a/src/gallium/winsys/drm/intel/gem/intel_be_batchbuffer.c +++ b/src/gallium/winsys/drm/intel/gem/intel_be_batchbuffer.c @@ -114,10 +114,10 @@ intel_be_batchbuffer_flush(struct intel_be_batchbuffer *batch, if (fence) { if (*fence) - intel_be_fence_unreference(*fence); + intel_be_fence_reference(fence, NULL); (*fence) = CALLOC_STRUCT(intel_be_fence); - (*fence)->refcount = 1; + pipe_reference_init(&(*fence)->reference, 1); (*fence)->bo = NULL; } } diff --git a/src/gallium/winsys/drm/intel/gem/intel_be_device.c b/src/gallium/winsys/drm/intel/gem/intel_be_device.c index 2e191a6d12..de13fb39c7 100644 --- a/src/gallium/winsys/drm/intel/gem/intel_be_device.c +++ b/src/gallium/winsys/drm/intel/gem/intel_be_device.c @@ -51,8 +51,7 @@ intel_be_buffer_unmap(struct pipe_winsys *winsys, } static void -intel_be_buffer_destroy(struct pipe_winsys *winsys, - struct pipe_buffer *buf) +intel_be_buffer_destroy(struct pipe_buffer *buf) { drm_intel_bo_unreference(intel_bo(buf)); free(buf); @@ -72,7 +71,7 @@ intel_be_buffer_create(struct pipe_winsys *winsys, if (!buffer) return NULL; - buffer->base.refcount = 1; + pipe_reference_init(&buffer->base.reference, 1); buffer->base.alignment = alignment; buffer->base.usage = usage; buffer->base.size = size; @@ -115,7 +114,7 @@ intel_be_user_buffer_create(struct pipe_winsys *winsys, void *ptr, unsigned byte if (!buffer) return NULL; - buffer->base.refcount = 1; + pipe_reference_init(&buffer->base.reference, 1); buffer->base.alignment = 0; buffer->base.usage = 0; buffer->base.size = bytes; @@ -155,7 +154,7 @@ intel_be_buffer_from_handle(struct pipe_screen *screen, if (!buffer->bo) goto err; - buffer->base.refcount = 1; + pipe_reference_init(&buffer->base.reference, 1); buffer->base.alignment = buffer->bo->align; buffer->base.usage = PIPE_BUFFER_USAGE_GPU_READ | PIPE_BUFFER_USAGE_GPU_WRITE | @@ -215,15 +214,7 @@ intel_be_fence_refunref(struct pipe_winsys *sws, struct intel_be_fence **p = (struct intel_be_fence **)ptr; struct intel_be_fence *f = (struct intel_be_fence *)fence; - assert(p); - - if (f) - intel_be_fence_reference(f); - - if (*p) - intel_be_fence_unreference(*p); - - *p = f; + intel_be_fence_reference(p, f); } static int diff --git a/src/gallium/winsys/drm/intel/gem/intel_be_fence.h b/src/gallium/winsys/drm/intel/gem/intel_be_fence.h index 0fe18f66f8..a8abb01a9e 100644 --- a/src/gallium/winsys/drm/intel/gem/intel_be_fence.h +++ b/src/gallium/winsys/drm/intel/gem/intel_be_fence.h @@ -15,23 +15,19 @@ */ struct intel_be_fence { - uint32_t refcount; + struct pipe_reference reference; drm_intel_bo *bo; }; static INLINE void -intel_be_fence_reference(struct intel_be_fence *f) +intel_be_fence_reference(struct intel_be_fence **ptr, struct intel_be_fence *f) { - f->refcount++; -} + struct intel_be_fence *old_fence = *ptr; -static INLINE void -intel_be_fence_unreference(struct intel_be_fence *f) -{ - if (!--f->refcount) { - if (f->bo) - drm_intel_bo_unreference(f->bo); - free(f); + if (pipe_reference((struct pipe_reference**)ptr, &f->reference)) { + if (old_fence->bo) + drm_intel_bo_unreference(old_fence->bo); + free(old_fence); } } diff --git a/src/gallium/winsys/drm/nouveau/common/nouveau_context.c b/src/gallium/winsys/drm/nouveau/common/nouveau_context.c index d6ae0827cd..25c98456ac 100644 --- a/src/gallium/winsys/drm/nouveau/common/nouveau_context.c +++ b/src/gallium/winsys/drm/nouveau/common/nouveau_context.c @@ -109,8 +109,7 @@ nouveau_context_init(struct nouveau_screen *nv_screen, nv_screen->nvc = nvc; } - nvc->refcount++; - nv->nvc = nvc; + pipe_reference((struct pipe_reference**)&nv->nvc, &nvc->reference); /* Find a free slot for a pipe context, allocate a new one if needed */ nv->pctx_id = -1; @@ -159,7 +158,7 @@ nouveau_context_init(struct nouveau_screen *nv_screen, enum pipe_format format; fb_buf = calloc(1, sizeof(struct nouveau_pipe_buffer)); - fb_buf->base.refcount = 1; + pipe_reference_init(&fb_buf->base.reference, 1); fb_buf->base.usage = PIPE_BUFFER_USAGE_PIXEL; nouveau_bo_fake(dev, nv_screen->front_offset, NOUVEAU_BO_VRAM, @@ -195,7 +194,7 @@ nouveau_context_cleanup(struct nouveau_context *nv) if (nv->pctx_id >= 0) { nvc->pctx[nv->pctx_id] = NULL; - if (--nvc->refcount <= 0) { + if (pipe_reference((struct pipe_reference**)&nv->nvc, NULL)) { nouveau_channel_context_destroy(nvc); nv->nv_screen->nvc = NULL; } diff --git a/src/gallium/winsys/drm/nouveau/common/nouveau_context.h b/src/gallium/winsys/drm/nouveau/common/nouveau_context.h index 02d2745680..ba8fc3ad2d 100644 --- a/src/gallium/winsys/drm/nouveau/common/nouveau_context.h +++ b/src/gallium/winsys/drm/nouveau/common/nouveau_context.h @@ -13,8 +13,8 @@ #include "nouveau_local.h" struct nouveau_channel_context { + struct pipe_reference reference; struct pipe_screen *pscreen; - int refcount; unsigned cur_pctx; unsigned nr_pctx; diff --git a/src/gallium/winsys/drm/nouveau/common/nouveau_winsys_pipe.c b/src/gallium/winsys/drm/nouveau/common/nouveau_winsys_pipe.c index 54c7dd46b1..24bbd4516f 100644 --- a/src/gallium/winsys/drm/nouveau/common/nouveau_winsys_pipe.c +++ b/src/gallium/winsys/drm/nouveau/common/nouveau_winsys_pipe.c @@ -67,7 +67,7 @@ nouveau_pipe_bo_create(struct pipe_winsys *pws, unsigned alignment, nvbuf = CALLOC_STRUCT(nouveau_pipe_buffer); if (!nvbuf) return NULL; - nvbuf->base.refcount = 1; + pipe_reference_init(&nvbuf->base.reference, 1); nvbuf->base.alignment = alignment; nvbuf->base.usage = usage; nvbuf->base.size = size; @@ -92,7 +92,7 @@ nouveau_pipe_bo_user_create(struct pipe_winsys *pws, void *ptr, unsigned bytes) nvbuf = CALLOC_STRUCT(nouveau_pipe_buffer); if (!nvbuf) return NULL; - nvbuf->base.refcount = 1; + pipe_reference_init(&nvbuf->base.reference, 1); nvbuf->base.size = bytes; if (nouveau_bo_user(dev, ptr, bytes, &nvbuf->bo)) { @@ -104,7 +104,7 @@ nouveau_pipe_bo_user_create(struct pipe_winsys *pws, void *ptr, unsigned bytes) } static void -nouveau_pipe_bo_del(struct pipe_winsys *ws, struct pipe_buffer *buf) +nouveau_pipe_bo_del(struct pipe_buffer *buf) { struct nouveau_pipe_buffer *nvbuf = nouveau_pipe_buffer(buf); diff --git a/src/gallium/winsys/drm/radeon/radeon_buffer.c b/src/gallium/winsys/drm/radeon/radeon_buffer.c index 79b8f777ca..b3582e3314 100644 --- a/src/gallium/winsys/drm/radeon/radeon_buffer.c +++ b/src/gallium/winsys/drm/radeon/radeon_buffer.c @@ -63,7 +63,7 @@ static struct pipe_buffer *radeon_buffer_create(struct pipe_winsys *ws, return NULL; } - radeon_buffer->base.refcount = 1; + pipe_reference_init(&radeon_buffer->base.reference, 1); radeon_buffer->base.alignment = alignment; radeon_buffer->base.usage = usage; radeon_buffer->base.size = size; @@ -104,7 +104,7 @@ static struct pipe_buffer *radeon_buffer_user_create(struct pipe_winsys *ws, return &radeon_buffer->base; } -static void radeon_buffer_del(struct pipe_winsys *ws, struct pipe_buffer *buffer) +static void radeon_buffer_del(struct pipe_buffer *buffer) { struct radeon_pipe_buffer *radeon_buffer = (struct radeon_pipe_buffer*)buffer; @@ -207,7 +207,7 @@ static struct pipe_buffer *radeon_buffer_from_handle(struct radeon_screen *radeo radeon_bo_unref(bo); return NULL; } - radeon_buffer->base.refcount = 1; + pipe_reference_init(&radeon_buffer->base.reference, 1); radeon_buffer->base.usage = PIPE_BUFFER_USAGE_PIXEL; radeon_buffer->bo = bo; return &radeon_buffer->base; @@ -242,10 +242,10 @@ struct pipe_surface *radeon_surface_from_handle(struct radeon_context *radeon_co pt = pipe_screen->texture_blanket(pipe_screen, &tmpl, &pitch, pb); if (pt == NULL) { - pipe_buffer_reference(pipe_screen, &pb, NULL); + pipe_buffer_reference(&pb, NULL); } ps = pipe_screen->get_tex_surface(pipe_screen, pt, 0, 0, 0, PIPE_BUFFER_USAGE_GPU_WRITE); return ps; } -#endif \ No newline at end of file +#endif diff --git a/src/gallium/winsys/drm/radeon/radeon_drm.c b/src/gallium/winsys/drm/radeon/radeon_drm.c index 21f2a62e0f..016634c8fd 100644 --- a/src/gallium/winsys/drm/radeon/radeon_drm.c +++ b/src/gallium/winsys/drm/radeon/radeon_drm.c @@ -84,7 +84,8 @@ struct pipe_buffer* radeon_buffer_from_handle(struct pipe_screen* screen, return NULL; } - radeon_buffer->base.refcount = 1; + pipe_reference_init(&radeon_buffer->base.reference, 1); + radeon_buffer->base.screen = screen; radeon_buffer->base.usage = PIPE_BUFFER_USAGE_PIXEL; radeon_buffer->bo = bo; return &radeon_buffer->base; -- cgit v1.2.3