1 files changed, 282 insertions, 0 deletions
diff --git a/src/gallium/drivers/radeonsi/r600_buffer.c b/src/gallium/drivers/radeonsi/r600_buffer.c
new file mode 100644
index 00000000000..bb885df8dcd
--- /dev/null
+++ b/src/gallium/drivers/radeonsi/r600_buffer.c
@@ -0,0 +1,282 @@
+/*
+ * Copyright 2010 Jerome Glisse <glisse@freedesktop.org>
+ *
+ * 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
+ * on 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
+ * THE AUTHOR(S) AND/OR THEIR 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.
+ *
+ * Authors:
+ *      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 "radeonsi_pipe.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 *rbuffer = r600_resource(buf);
+
+	pb_reference(&rbuffer->buf, NULL);
+	util_slab_free(&rscreen->pool_buffers, rbuffer);
+}
+
+static struct pipe_transfer *r600_get_transfer(struct pipe_context *ctx,
+					       struct pipe_resource *resource,
+					       unsigned level,
+					       unsigned usage,
+					       const struct pipe_box *box)
+{
+	struct r600_context *rctx = (struct r600_context*)ctx;
+	struct pipe_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;
+
+	/* Note strides are zero, this is ok for buffers, but not for
+	 * textures 2d & higher at least.
+	 */
+	return transfer;
+}
+
+static void *r600_buffer_transfer_map(struct pipe_context *pipe,
+				      struct pipe_transfer *transfer)
+{
+	struct r600_resource *rbuffer = r600_resource(transfer->resource);
+	struct r600_context *rctx = (struct r600_context*)pipe;
+	uint8_t *data;
+
+	if (rbuffer->b.user_ptr)
+		return (uint8_t*)rbuffer->b.user_ptr + transfer->box.x;
+
+	data = rctx->ws->buffer_map(rbuffer->buf, rctx->cs, transfer->usage);
+	if (!data)
+		return NULL;
+
+	return (uint8_t*)data + transfer->box.x;
+}
+
+static void r600_buffer_transfer_unmap(struct pipe_context *pipe,
+					struct pipe_transfer *transfer)
+{
+	struct r600_resource *rbuffer = r600_resource(transfer->resource);
+	struct r600_context *rctx = (struct r600_context*)pipe;
+
+	if (rbuffer->b.user_ptr)
+		return;
+
+	rctx->ws->buffer_unmap(rbuffer->buf);
+}
+
+static void r600_buffer_transfer_flush_region(struct pipe_context *pipe,
+						struct pipe_transfer *transfer,
+						const struct pipe_box *box)
+{
+}
+
+static void r600_transfer_destroy(struct pipe_context *ctx,
+				  struct pipe_transfer *transfer)
+{
+	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_context *rctx = (struct r600_context*)pipe;
+	struct r600_resource *rbuffer = r600_resource(resource);
+	uint8_t *map = NULL;
+
+	assert(rbuffer->b.user_ptr == NULL);
+
+	map = rctx->ws->buffer_map(rbuffer->buf, rctx->cs,
+				   PIPE_TRANSFER_WRITE | PIPE_TRANSFER_DISCARD_RANGE | usage);
+
+	memcpy(map + box->x, data, box->width);
+
+	rctx->ws->buffer_unmap(rbuffer->buf);
+}
+
+static const struct u_resource_vtbl r600_buffer_vtbl =
+{
+	u_default_resource_get_handle,		/* get_handle */
+	r600_buffer_destroy,			/* resource_destroy */
+	r600_get_transfer,			/* get_transfer */
+	r600_transfer_destroy,			/* transfer_destroy */
+	r600_buffer_transfer_map,		/* transfer_map */
+	r600_buffer_transfer_flush_region,	/* transfer_flush_region */
+	r600_buffer_transfer_unmap,		/* transfer_unmap */
+	r600_buffer_transfer_inline_write	/* transfer_inline_write */
+};
+
+bool r600_init_resource(struct r600_screen *rscreen,
+			struct r600_resource *res,
+			unsigned size, unsigned alignment,
+			unsigned bind, unsigned usage)
+{
+	uint32_t initial_domain, domains;
+
+	/* 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;
+		}
+	}
+
+	res->buf = rscreen->ws->buffer_create(rscreen->ws, size, alignment, bind, initial_domain);
+	if (!res->buf) {
+		return false;
+	}
+
+	res->cs_buf = rscreen->ws->buffer_get_cs_handle(res->buf);
+	res->domains = domains;
+	return true;
+}
+
+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 *rbuffer;
+	/* XXX We probably want a different alignment for buffers and textures. */
+	unsigned alignment = 4096;
+
+	rbuffer = util_slab_alloc(&rscreen->pool_buffers);
+
+	rbuffer->b.b.b = *templ;
+	pipe_reference_init(&rbuffer->b.b.b.reference, 1);
+	rbuffer->b.b.b.screen = screen;
+	rbuffer->b.b.vtbl = &r600_buffer_vtbl;
+	rbuffer->b.user_ptr = NULL;
+
+	if (!r600_init_resource(rscreen, rbuffer, templ->width0, alignment, templ->bind, templ->usage)) {
+		util_slab_free(&rscreen->pool_buffers, rbuffer);
+		return NULL;
+	}
+	return &rbuffer->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 *rbuffer;
+
+	rbuffer = util_slab_alloc(&rscreen->pool_buffers);
+
+	pipe_reference_init(&rbuffer->b.b.b.reference, 1);
+	rbuffer->b.b.vtbl = &r600_buffer_vtbl;
+	rbuffer->b.b.b.screen = screen;
+	rbuffer->b.b.b.target = PIPE_BUFFER;
+	rbuffer->b.b.b.format = PIPE_FORMAT_R8_UNORM;
+	rbuffer->b.b.b.usage = PIPE_USAGE_IMMUTABLE;
+	rbuffer->b.b.b.bind = bind;
+	rbuffer->b.b.b.width0 = bytes;
+	rbuffer->b.b.b.height0 = 1;
+	rbuffer->b.b.b.depth0 = 1;
+	rbuffer->b.b.b.array_size = 1;
+	rbuffer->b.b.b.flags = 0;
+	rbuffer->b.user_ptr = ptr;
+	rbuffer->buf = NULL;
+	return &rbuffer->b.b.b;
+}
+
+void r600_upload_index_buffer(struct r600_context *rctx,
+			      struct pipe_index_buffer *ib, unsigned count)
+{
+	struct r600_resource *rbuffer = r600_resource(ib->buffer);
+
+	u_upload_data(rctx->vbuf_mgr->uploader, 0, count * ib->index_size,
+		      rbuffer->b.user_ptr, &ib->offset, &ib->buffer);
+}
+
+void r600_upload_const_buffer(struct r600_context *rctx, struct r600_resource **rbuffer,
+			     uint32_t *const_offset)
+{
+	if ((*rbuffer)->b.user_ptr) {
+		uint8_t *ptr = (*rbuffer)->b.user_ptr;
+		unsigned size = (*rbuffer)->b.b.b.width0;
+
+		*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;
+			}
+
+			for (i = 0; i < size / 4; ++i) {
+				tmpPtr[i] = bswap_32(((uint32_t *)ptr)[i]);
+			}
+
+			u_upload_data(rctx->vbuf_mgr->uploader, 0, size, tmpPtr, const_offset,
+				      (struct pipe_resource**)rbuffer);
+
+			free(tmpPtr);
+		} else {
+			u_upload_data(rctx->vbuf_mgr->uploader, 0, size, ptr, const_offset,
+				      (struct pipe_resource**)rbuffer);
+		}
+	} else {
+		*const_offset = 0;
+	}
+}