nv50,nvc0: implement blit
[mesa.git] / src / gallium / drivers / r600 / r600_buffer.c
index ca2415adb283227e1fb35adc9a34f6911205533a..0b0ac3460e1bfb3fec66028a2fa3d7ea9e2fe5d9 100644 (file)
  *      Jerome Glisse
  *      Corbin Simpson <MostAwesomeDude@gmail.com>
  */
-#include <byteswap.h>
-
-#include <pipe/p_screen.h>
-#include <util/u_format.h>
-#include <util/u_math.h>
-#include <util/u_inlines.h>
-#include <util/u_memory.h>
-#include "util/u_upload_mgr.h"
-
-#include "r600.h"
 #include "r600_pipe.h"
+#include "util/u_upload_mgr.h"
+#include "util/u_memory.h"
 
 static void r600_buffer_destroy(struct pipe_screen *screen,
                                struct pipe_resource *buf)
 {
-       struct r600_screen *rscreen = (struct r600_screen*)screen;
-       struct r600_resource_buffer *rbuffer = r600_buffer(buf);
+       struct r600_resource *rbuffer = r600_resource(buf);
 
-       if (rbuffer->r.bo) {
-               r600_bo_reference(&rbuffer->r.bo, NULL);
-       }
-       rbuffer->r.bo = NULL;
-       util_slab_free(&rscreen->pool_buffers, rbuffer);
+       pb_reference(&rbuffer->buf, NULL);
+       FREE(rbuffer);
 }
 
 static struct pipe_transfer *r600_get_transfer(struct pipe_context *ctx,
@@ -55,34 +43,119 @@ static struct pipe_transfer *r600_get_transfer(struct pipe_context *ctx,
                                               unsigned usage,
                                               const struct pipe_box *box)
 {
-       struct r600_pipe_context *rctx = (struct r600_pipe_context*)ctx;
-       struct pipe_transfer *transfer = util_slab_alloc(&rctx->pool_transfers);
+       struct r600_context *rctx = (struct r600_context*)ctx;
+       struct r600_transfer *transfer = util_slab_alloc(&rctx->pool_transfers);
 
-       transfer->resource = resource;
-       transfer->level = level;
-       transfer->usage = usage;
-       transfer->box = *box;
-       transfer->stride = 0;
-       transfer->layer_stride = 0;
-       transfer->data = NULL;
+       assert(box->x + box->width <= resource->width0);
+
+       transfer->transfer.resource = resource;
+       transfer->transfer.level = level;
+       transfer->transfer.usage = usage;
+       transfer->transfer.box = *box;
+       transfer->transfer.stride = 0;
+       transfer->transfer.layer_stride = 0;
+       transfer->transfer.data = NULL;
+       transfer->staging = NULL;
+       transfer->offset = 0;
 
        /* Note strides are zero, this is ok for buffers, but not for
         * textures 2d & higher at least.
         */
-       return transfer;
+       return &transfer->transfer;
+}
+
+static void r600_set_constants_dirty_if_bound(struct r600_context *rctx,
+                                             struct r600_resource *rbuffer)
+{
+       unsigned shader;
+
+       for (shader = 0; shader < PIPE_SHADER_TYPES; shader++) {
+               struct r600_constbuf_state *state = &rctx->constbuf_state[shader];
+               bool found = false;
+               uint32_t mask = state->enabled_mask;
+
+               while (mask) {
+                       unsigned i = u_bit_scan(&mask);
+                       if (state->cb[i].buffer == &rbuffer->b.b) {
+                               found = true;
+                               state->dirty_mask |= 1 << i;
+                       }
+               }
+               if (found) {
+                       r600_constant_buffers_dirty(rctx, state);
+               }
+       }
 }
 
 static void *r600_buffer_transfer_map(struct pipe_context *pipe,
                                      struct pipe_transfer *transfer)
 {
-       struct r600_resource_buffer *rbuffer = r600_buffer(transfer->resource);
-       struct r600_pipe_context *rctx = (struct r600_pipe_context*)pipe;
+       struct r600_resource *rbuffer = r600_resource(transfer->resource);
+       struct r600_context *rctx = (struct r600_context*)pipe;
        uint8_t *data;
 
-       if (rbuffer->r.b.user_ptr)
-               return (uint8_t*)rbuffer->r.b.user_ptr + transfer->box.x;
+       if (transfer->usage & PIPE_TRANSFER_DISCARD_WHOLE_RESOURCE &&
+           !(transfer->usage & PIPE_TRANSFER_UNSYNCHRONIZED)) {
+               assert(transfer->usage & PIPE_TRANSFER_WRITE);
+
+               /* Check if mapping this buffer would cause waiting for the GPU. */
+               if (rctx->ws->cs_is_buffer_referenced(rctx->cs, rbuffer->cs_buf, RADEON_USAGE_READWRITE) ||
+                   rctx->ws->buffer_is_busy(rbuffer->buf, RADEON_USAGE_READWRITE)) {
+                       unsigned i, mask;
+
+                       /* Discard the buffer. */
+                       pb_reference(&rbuffer->buf, NULL);
+
+                       /* Create a new one in the same pipe_resource. */
+                       /* XXX We probably want a different alignment for buffers and textures. */
+                       r600_init_resource(rctx->screen, rbuffer, rbuffer->b.b.width0, 4096,
+                                          rbuffer->b.b.bind, rbuffer->b.b.usage);
+
+                       /* We changed the buffer, now we need to bind it where the old one was bound. */
+                       /* Vertex buffers. */
+                       mask = rctx->vertex_buffer_state.enabled_mask;
+                       while (mask) {
+                               i = u_bit_scan(&mask);
+                               if (rctx->vertex_buffer_state.vb[i].buffer == &rbuffer->b.b) {
+                                       rctx->vertex_buffer_state.dirty_mask |= 1 << i;
+                                       r600_vertex_buffers_dirty(rctx);
+                               }
+                       }
+                       /* Streamout buffers. */
+                       for (i = 0; i < rctx->num_so_targets; i++) {
+                               if (rctx->so_targets[i]->b.buffer == &rbuffer->b.b) {
+                                       r600_context_streamout_end(rctx);
+                                       rctx->streamout_start = TRUE;
+                                       rctx->streamout_append_bitmask = ~0;
+                               }
+                       }
+                       /* Constant buffers. */
+                       r600_set_constants_dirty_if_bound(rctx, rbuffer);
+               }
+       }
+#if 0 /* this is broken (see Bug 53130) */
+       else if ((transfer->usage & PIPE_TRANSFER_DISCARD_RANGE) &&
+                !(transfer->usage & PIPE_TRANSFER_UNSYNCHRONIZED) &&
+                rctx->screen->has_streamout &&
+                /* The buffer range must be aligned to 4. */
+                transfer->box.x % 4 == 0 && transfer->box.width % 4 == 0) {
+               assert(transfer->usage & PIPE_TRANSFER_WRITE);
+
+               /* Check if mapping this buffer would cause waiting for the GPU. */
+               if (rctx->ws->cs_is_buffer_referenced(rctx->cs, rbuffer->cs_buf, RADEON_USAGE_READWRITE) ||
+                   rctx->ws->buffer_is_busy(rbuffer->buf, RADEON_USAGE_READWRITE)) {
+                       /* Do a wait-free write-only transfer using a temporary buffer. */
+                       struct r600_transfer *rtransfer = (struct r600_transfer*)transfer;
+
+                       rtransfer->staging = (struct r600_resource*)
+                               pipe_buffer_create(pipe->screen, PIPE_BIND_VERTEX_BUFFER,
+                                                  PIPE_USAGE_STAGING, transfer->box.width);
+                       return rctx->ws->buffer_map(rtransfer->staging->cs_buf, rctx->cs, PIPE_TRANSFER_WRITE);
+               }
+       }
+#endif
 
-       data = r600_bo_map(rctx->screen->radeon, rbuffer->r.bo, rctx->ctx.cs, transfer->usage);
+       data = rctx->ws->buffer_map(rbuffer->cs_buf, rctx->cs, transfer->usage);
        if (!data)
                return NULL;
 
@@ -92,54 +165,26 @@ static void *r600_buffer_transfer_map(struct pipe_context *pipe,
 static void r600_buffer_transfer_unmap(struct pipe_context *pipe,
                                        struct pipe_transfer *transfer)
 {
-       struct r600_resource_buffer *rbuffer = r600_buffer(transfer->resource);
-       struct r600_pipe_context *rctx = (struct r600_pipe_context*)pipe;
+       struct r600_transfer *rtransfer = (struct r600_transfer*)transfer;
 
-       if (rbuffer->r.b.user_ptr)
-               return;
+       if (rtransfer->staging) {
+               struct pipe_box box;
+               u_box_1d(0, transfer->box.width, &box);
 
-       if (rbuffer->r.bo)
-               r600_bo_unmap(rctx->screen->radeon, rbuffer->r.bo);
-}
-
-static void r600_buffer_transfer_flush_region(struct pipe_context *pipe,
-                                               struct pipe_transfer *transfer,
-                                               const struct pipe_box *box)
-{
+               /* Copy the staging buffer into the original one. */
+               r600_copy_buffer(pipe, transfer->resource, transfer->box.x,
+                                &rtransfer->staging->b.b, &box);
+               pipe_resource_reference((struct pipe_resource**)&rtransfer->staging, NULL);
+       }
 }
 
 static void r600_transfer_destroy(struct pipe_context *ctx,
                                  struct pipe_transfer *transfer)
 {
-       struct r600_pipe_context *rctx = (struct r600_pipe_context*)ctx;
+       struct r600_context *rctx = (struct r600_context*)ctx;
        util_slab_free(&rctx->pool_transfers, transfer);
 }
 
-static void r600_buffer_transfer_inline_write(struct pipe_context *pipe,
-                                               struct pipe_resource *resource,
-                                               unsigned level,
-                                               unsigned usage,
-                                               const struct pipe_box *box,
-                                               const void *data,
-                                               unsigned stride,
-                                               unsigned layer_stride)
-{
-       struct r600_pipe_context *rctx = (struct r600_pipe_context*)pipe;
-       struct radeon *radeon = rctx->screen->radeon;
-       struct r600_resource_buffer *rbuffer = r600_buffer(resource);
-       uint8_t *map = NULL;
-
-       assert(rbuffer->r.b.user_ptr == NULL);
-
-       map = r600_bo_map(radeon, rbuffer->r.bo, rctx->ctx.cs,
-                         PIPE_TRANSFER_WRITE | PIPE_TRANSFER_DISCARD | usage);
-
-       memcpy(map + box->x, data, box->width);
-
-       if (rbuffer->r.bo)
-               r600_bo_unmap(radeon, rbuffer->r.bo);
-}
-
 static const struct u_resource_vtbl r600_buffer_vtbl =
 {
        u_default_resource_get_handle,          /* get_handle */
@@ -147,142 +192,70 @@ static const struct u_resource_vtbl r600_buffer_vtbl =
        r600_get_transfer,                      /* get_transfer */
        r600_transfer_destroy,                  /* transfer_destroy */
        r600_buffer_transfer_map,               /* transfer_map */
-       r600_buffer_transfer_flush_region,      /* transfer_flush_region */
+       NULL,                                   /* transfer_flush_region */
        r600_buffer_transfer_unmap,             /* transfer_unmap */
-       r600_buffer_transfer_inline_write       /* transfer_inline_write */
+       NULL                                    /* transfer_inline_write */
 };
 
-struct pipe_resource *r600_buffer_create(struct pipe_screen *screen,
-                                        const struct pipe_resource *templ)
-{
-       struct r600_screen *rscreen = (struct r600_screen*)screen;
-       struct r600_resource_buffer *rbuffer;
-       struct r600_bo *bo;
-       /* XXX We probably want a different alignment for buffers and textures. */
-       unsigned alignment = 4096;
-
-       rbuffer = util_slab_alloc(&rscreen->pool_buffers);
-
-       rbuffer->magic = R600_BUFFER_MAGIC;
-       rbuffer->r.b.b.b = *templ;
-       pipe_reference_init(&rbuffer->r.b.b.b.reference, 1);
-       rbuffer->r.b.b.b.screen = screen;
-       rbuffer->r.b.b.vtbl = &r600_buffer_vtbl;
-       rbuffer->r.b.user_ptr = NULL;
-       rbuffer->r.size = rbuffer->r.b.b.b.width0;
-       rbuffer->r.bo_size = rbuffer->r.size;
-
-       bo = r600_bo(rscreen->radeon,
-                    rbuffer->r.b.b.b.width0,
-                    alignment, rbuffer->r.b.b.b.bind,
-                    rbuffer->r.b.b.b.usage);
-
-       if (bo == NULL) {
-               FREE(rbuffer);
-               return NULL;
-       }
-       rbuffer->r.bo = bo;
-       return &rbuffer->r.b.b.b;
-}
-
-struct pipe_resource *r600_user_buffer_create(struct pipe_screen *screen,
-                                             void *ptr, unsigned bytes,
-                                             unsigned bind)
-{
-       struct r600_screen *rscreen = (struct r600_screen*)screen;
-       struct r600_resource_buffer *rbuffer;
-
-       rbuffer = util_slab_alloc(&rscreen->pool_buffers);
-
-       rbuffer->magic = R600_BUFFER_MAGIC;
-       pipe_reference_init(&rbuffer->r.b.b.b.reference, 1);
-       rbuffer->r.b.b.vtbl = &r600_buffer_vtbl;
-       rbuffer->r.b.b.b.screen = screen;
-       rbuffer->r.b.b.b.target = PIPE_BUFFER;
-       rbuffer->r.b.b.b.format = PIPE_FORMAT_R8_UNORM;
-       rbuffer->r.b.b.b.usage = PIPE_USAGE_IMMUTABLE;
-       rbuffer->r.b.b.b.bind = bind;
-       rbuffer->r.b.b.b.width0 = bytes;
-       rbuffer->r.b.b.b.height0 = 1;
-       rbuffer->r.b.b.b.depth0 = 1;
-       rbuffer->r.b.b.b.array_size = 1;
-       rbuffer->r.b.b.b.flags = 0;
-       rbuffer->r.b.user_ptr = ptr;
-       rbuffer->r.bo = NULL;
-       rbuffer->r.bo_size = 0;
-       return &rbuffer->r.b.b.b;
-}
-
-struct pipe_resource *r600_buffer_from_handle(struct pipe_screen *screen,
-                                             struct winsys_handle *whandle)
+bool r600_init_resource(struct r600_screen *rscreen,
+                       struct r600_resource *res,
+                       unsigned size, unsigned alignment,
+                       unsigned bind, unsigned usage)
 {
-       struct radeon *rw = ((struct r600_screen*)screen)->radeon;
-       struct r600_resource *rbuffer;
-       struct r600_bo *bo = NULL;
+       uint32_t initial_domain, domains;
 
-       bo = r600_bo_handle(rw, whandle, NULL, NULL);
-       if (bo == NULL) {
-               return NULL;
+       /* Staging resources particpate in transfers and blits only
+        * and are used for uploads and downloads from regular
+        * resources.  We generate them internally for some transfers.
+        */
+       if (usage == PIPE_USAGE_STAGING) {
+               domains = RADEON_DOMAIN_GTT;
+               initial_domain = RADEON_DOMAIN_GTT;
+       } else {
+               domains = RADEON_DOMAIN_GTT | RADEON_DOMAIN_VRAM;
+
+               switch(usage) {
+               case PIPE_USAGE_DYNAMIC:
+               case PIPE_USAGE_STREAM:
+               case PIPE_USAGE_STAGING:
+                       initial_domain = RADEON_DOMAIN_GTT;
+                       break;
+               case PIPE_USAGE_DEFAULT:
+               case PIPE_USAGE_STATIC:
+               case PIPE_USAGE_IMMUTABLE:
+               default:
+                       initial_domain = RADEON_DOMAIN_VRAM;
+                       break;
+               }
        }
 
-       rbuffer = CALLOC_STRUCT(r600_resource);
-       if (rbuffer == NULL) {
-               r600_bo_reference(&bo, NULL);
-               return NULL;
+       res->buf = rscreen->ws->buffer_create(rscreen->ws, size, alignment, bind, initial_domain);
+       if (!res->buf) {
+               return false;
        }
 
-       pipe_reference_init(&rbuffer->b.b.b.reference, 1);
-       rbuffer->b.b.b.target = PIPE_BUFFER;
-       rbuffer->b.b.b.screen = screen;
-       rbuffer->b.b.vtbl = &r600_buffer_vtbl;
-       rbuffer->bo = bo;
-       return &rbuffer->b.b.b;
-}
-
-void r600_upload_index_buffer(struct r600_pipe_context *rctx, struct r600_drawl *draw)
-{
-       struct r600_resource_buffer *rbuffer = r600_buffer(draw->index_buffer);
-       boolean flushed;
-
-       u_upload_data(rctx->vbuf_mgr->uploader, 0,
-                     draw->info.count * draw->index_size,
-                     rbuffer->r.b.user_ptr,
-                     &draw->index_buffer_offset,
-                     &draw->index_buffer, &flushed);
+       res->cs_buf = rscreen->ws->buffer_get_cs_handle(res->buf);
+       res->domains = domains;
+       return true;
 }
 
-void r600_upload_const_buffer(struct r600_pipe_context *rctx, struct r600_resource_buffer **rbuffer,
-                            uint32_t *const_offset)
+struct pipe_resource *r600_buffer_create(struct pipe_screen *screen,
+                                        const struct pipe_resource *templ,
+                                        unsigned alignment)
 {
-       if ((*rbuffer)->r.b.user_ptr) {
-               uint8_t *ptr = (*rbuffer)->r.b.user_ptr;
-               unsigned size = (*rbuffer)->r.b.b.b.width0;
-               boolean flushed;
-
-               *rbuffer = NULL;
-
-               if (R600_BIG_ENDIAN) {
-                       uint32_t *tmpPtr;
-                       unsigned i;
-
-                       if (!(tmpPtr = malloc(size))) {
-                               R600_ERR("Failed to allocate BE swap buffer.\n");
-                               return;
-                       }
+       struct r600_screen *rscreen = (struct r600_screen*)screen;
+       struct r600_resource *rbuffer;
 
-                       for (i = 0; i < size / 4; ++i) {
-                               tmpPtr[i] = bswap_32(((uint32_t *)ptr)[i]);
-                       }
+       rbuffer = MALLOC_STRUCT(r600_resource);
 
-                       u_upload_data(rctx->vbuf_mgr->uploader, 0, size, tmpPtr, const_offset,
-                                     (struct pipe_resource**)rbuffer, &flushed);
+       rbuffer->b.b = *templ;
+       pipe_reference_init(&rbuffer->b.b.reference, 1);
+       rbuffer->b.b.screen = screen;
+       rbuffer->b.vtbl = &r600_buffer_vtbl;
 
-                       free(tmpPtr);
-               } else {
-                       u_upload_data(rctx->vbuf_mgr->uploader, 0, size, ptr, const_offset,
-                                     (struct pipe_resource**)rbuffer, &flushed);
-               }
-       } else {
-               *const_offset = 0;
+       if (!r600_init_resource(rscreen, rbuffer, templ->width0, alignment, templ->bind, templ->usage)) {
+               FREE(rbuffer);
+               return NULL;
        }
+       return &rbuffer->b.b;
 }