From: Ilia Mirkin Date: Thu, 27 Feb 2014 06:07:51 +0000 (-0500) Subject: nouveau: add valid range tracking to nouveau_buffer X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=5bf90cb521d1d6f26684b1ce9d0811c636b6abb1;p=mesa.git nouveau: add valid range tracking to nouveau_buffer This logic is borrowed from the radeon code. The transfer logic will only get called for PIPE_BUFFER resources, so it shouldn't be necessary to worry about them becoming render targets. Signed-off-by: Ilia Mirkin Reviewed-by: Christoph Bumiller --- diff --git a/src/gallium/drivers/nouveau/nouveau_buffer.c b/src/gallium/drivers/nouveau/nouveau_buffer.c index 5b0b93b4a62..e308ff40caa 100644 --- a/src/gallium/drivers/nouveau/nouveau_buffer.c +++ b/src/gallium/drivers/nouveau/nouveau_buffer.c @@ -69,6 +69,8 @@ nouveau_buffer_allocate(struct nouveau_screen *screen, if (buf->bo) buf->address = buf->bo->offset + buf->offset; + util_range_set_empty(&buf->valid_buffer_range); + return TRUE; } @@ -124,6 +126,8 @@ nouveau_buffer_destroy(struct pipe_screen *pscreen, nouveau_fence_ref(NULL, &res->fence); nouveau_fence_ref(NULL, &res->fence_wr); + util_range_destroy(&res->valid_buffer_range); + FREE(res); NOUVEAU_DRV_STAT(nouveau_screen(pscreen), buf_obj_current_count, -1); @@ -387,6 +391,17 @@ nouveau_buffer_transfer_map(struct pipe_context *pipe, if (usage & PIPE_TRANSFER_WRITE) NOUVEAU_DRV_STAT(nv->screen, buf_transfers_wr, 1); + /* If we are trying to write to an uninitialized range, the user shouldn't + * care what was there before. So we can treat the write as if the target + * range were being discarded. Furthermore, since we know that even if this + * buffer is busy due to GPU activity, because the contents were + * uninitialized, the GPU can't care what was there, and so we can treat + * the write as being unsynchronized. + */ + if ((usage & PIPE_TRANSFER_WRITE) && + !util_ranges_intersect(&buf->valid_buffer_range, box->x, box->x + box->width)) + usage |= PIPE_TRANSFER_DISCARD_RANGE | PIPE_TRANSFER_UNSYNCHRONIZED; + if (buf->domain == NOUVEAU_BO_VRAM) { if (usage & NOUVEAU_TRANSFER_DISCARD) { /* Set up a staging area for the user to write to. It will be copied @@ -492,8 +507,14 @@ nouveau_buffer_transfer_flush_region(struct pipe_context *pipe, const struct pipe_box *box) { struct nouveau_transfer *tx = nouveau_transfer(transfer); + struct nv04_resource *buf = nv04_resource(transfer->resource); + if (tx->map) nouveau_transfer_write(nouveau_context(pipe), tx, box->x, box->width); + + util_range_add(&buf->valid_buffer_range, + tx->base.box.x + box->x, + tx->base.box.x + box->x + box->width); } /* Unmap stage of the transfer. If it was a WRITE transfer and the map that @@ -522,6 +543,9 @@ nouveau_buffer_transfer_unmap(struct pipe_context *pipe, if (bind & (PIPE_BIND_CONSTANT_BUFFER)) nv->cb_dirty = TRUE; } + + util_range_add(&buf->valid_buffer_range, + tx->base.box.x, tx->base.box.x + tx->base.box.width); } if (!tx->bo && (tx->base.usage & PIPE_TRANSFER_WRITE)) @@ -562,6 +586,8 @@ nouveau_copy_buffer(struct nouveau_context *nv, &dst->base, 0, dstx, 0, 0, &src->base, 0, &src_box); } + + util_range_add(&dst->valid_buffer_range, dstx, dstx + size); } @@ -659,6 +685,8 @@ nouveau_buffer_create(struct pipe_screen *pscreen, NOUVEAU_DRV_STAT(screen, buf_obj_current_count, 1); + util_range_init(&buffer->valid_buffer_range); + return &buffer->base; fail: @@ -690,6 +718,9 @@ nouveau_user_buffer_create(struct pipe_screen *pscreen, void *ptr, buffer->data = ptr; buffer->status = NOUVEAU_BUFFER_STATUS_USER_MEMORY; + util_range_init(&buffer->valid_buffer_range); + util_range_add(&buffer->valid_buffer_range, 0, bytes); + return &buffer->base; } diff --git a/src/gallium/drivers/nouveau/nouveau_buffer.h b/src/gallium/drivers/nouveau/nouveau_buffer.h index aeb9b1796b8..f881adc80d9 100644 --- a/src/gallium/drivers/nouveau/nouveau_buffer.h +++ b/src/gallium/drivers/nouveau/nouveau_buffer.h @@ -1,6 +1,7 @@ #ifndef __NOUVEAU_BUFFER_H__ #define __NOUVEAU_BUFFER_H__ +#include "util/u_range.h" #include "util/u_transfer.h" #include "util/u_double_list.h" @@ -44,6 +45,9 @@ struct nv04_resource { struct nouveau_fence *fence_wr; struct nouveau_mm_allocation *mm; + + /* buffer range that has been initialized */ + struct util_range valid_buffer_range; }; void diff --git a/src/gallium/drivers/nouveau/nv50/nv50_resource.c b/src/gallium/drivers/nouveau/nv50/nv50_resource.c index 7fbb0a92bf6..d289b4a24e8 100644 --- a/src/gallium/drivers/nouveau/nv50/nv50_resource.c +++ b/src/gallium/drivers/nouveau/nv50/nv50_resource.c @@ -68,6 +68,8 @@ nv50_surface_create(struct pipe_context *pipe, struct pipe_resource *pres, const struct pipe_surface *templ) { + /* surfaces are assumed to be miptrees all over the place. */ + assert(pres->target != PIPE_BUFFER); if (unlikely(pres->target == PIPE_BUFFER)) return nv50_surface_from_buffer(pipe, pres, templ); return nv50_miptree_surface_new(pipe, pres, templ); diff --git a/src/gallium/drivers/nouveau/nv50/nv50_state.c b/src/gallium/drivers/nouveau/nv50/nv50_state.c index 288ba462195..c03d72922a9 100644 --- a/src/gallium/drivers/nouveau/nv50/nv50_state.c +++ b/src/gallium/drivers/nouveau/nv50/nv50_state.c @@ -1010,6 +1010,7 @@ nv50_so_target_create(struct pipe_context *pipe, struct pipe_resource *res, unsigned offset, unsigned size) { + struct nv04_resource *buf = (struct nv04_resource *)res; struct nv50_so_target *targ = MALLOC_STRUCT(nv50_so_target); if (!targ) return NULL; @@ -1033,6 +1034,9 @@ nv50_so_target_create(struct pipe_context *pipe, pipe_resource_reference(&targ->pipe.buffer, res); pipe_reference_init(&targ->pipe.reference, 1); + assert(buf->base.target == PIPE_BUFFER); + util_range_add(&buf->valid_buffer_range, offset, offset + size); + return &targ->pipe; } diff --git a/src/gallium/drivers/nouveau/nvc0/nvc0_resource.c b/src/gallium/drivers/nouveau/nvc0/nvc0_resource.c index 4e70903b538..12b5a025064 100644 --- a/src/gallium/drivers/nouveau/nvc0/nvc0_resource.c +++ b/src/gallium/drivers/nouveau/nvc0/nvc0_resource.c @@ -36,6 +36,8 @@ nvc0_surface_create(struct pipe_context *pipe, struct pipe_resource *pres, const struct pipe_surface *templ) { + /* surfaces are assumed to be miptrees all over the place. */ + assert(pres->target != PIPE_BUFFER); if (unlikely(pres->target == PIPE_BUFFER)) return nv50_surface_from_buffer(pipe, pres, templ); return nvc0_miptree_surface_new(pipe, pres, templ); diff --git a/src/gallium/drivers/nouveau/nvc0/nvc0_state.c b/src/gallium/drivers/nouveau/nvc0/nvc0_state.c index 0213a8e22ac..dec535532d8 100644 --- a/src/gallium/drivers/nouveau/nvc0/nvc0_state.c +++ b/src/gallium/drivers/nouveau/nvc0/nvc0_state.c @@ -992,6 +992,7 @@ nvc0_so_target_create(struct pipe_context *pipe, struct pipe_resource *res, unsigned offset, unsigned size) { + struct nv04_resource *buf = (struct nv04_resource *)res; struct nvc0_so_target *targ = MALLOC_STRUCT(nvc0_so_target); if (!targ) return NULL; @@ -1010,6 +1011,9 @@ nvc0_so_target_create(struct pipe_context *pipe, pipe_resource_reference(&targ->pipe.buffer, res); pipe_reference_init(&targ->pipe.reference, 1); + assert(buf->base.target == PIPE_BUFFER); + util_range_add(&buf->valid_buffer_range, offset, offset + size); + return &targ->pipe; }