1 files changed, 161 insertions, 0 deletions
diff --git a/src/gallium/winsys/r600/drm/r600_bomgr.c b/src/gallium/winsys/r600/drm/r600_bomgr.c
new file mode 100644
index 0000000000..446ef0f9cf
--- /dev/null
+++ b/src/gallium/winsys/r600/drm/r600_bomgr.c
@@ -0,0 +1,161 @@
+/*
+ * Copyright 2010 VMWare.
+ * Copyright 2010 Red Hat Inc.
+ *
+ * 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:
+ *      Jose Fonseca <jrfonseca-at-vmware-dot-com>
+ *      Thomas Hellström <thomas-at-vmware-dot-com>
+ *      Jerome Glisse <jglisse@redhat.com>
+ */
+#include <util/u_memory.h>
+#include <util/u_double_list.h>
+#include <util/u_time.h>
+#include <pipebuffer/pb_bufmgr.h>
+#include "r600_priv.h"
+
+static void r600_bomgr_timeout_flush(struct r600_bomgr *mgr)
+{
+	struct r600_bo *bo, *tmp;
+	int64_t now;
+
+	now = os_time_get();
+	LIST_FOR_EACH_ENTRY_SAFE(bo, tmp, &mgr->delayed, list) {
+		if(!os_time_timeout(bo->start, bo->end, now))
+			break;
+
+		mgr->num_delayed--;
+		bo->manager_id = 0;
+		LIST_DEL(&bo->list);
+		r600_bo_destroy(mgr->radeon, bo);
+	}
+}
+
+static INLINE int r600_bo_is_compat(struct r600_bomgr *mgr,
+					struct r600_bo *bo,
+					unsigned size,
+					unsigned alignment,
+					unsigned cfence)
+{
+	if(bo->size < size) {
+		return 0;
+	}
+
+	/* be lenient with size */
+	if(bo->size >= 2*size) {
+		return 0;
+	}
+
+	if(!pb_check_alignment(alignment, bo->alignment)) {
+		return 0;
+	}
+
+	if (!fence_is_after(cfence, bo->fence)) {
+		return 0;
+	}
+
+	return 1;
+}
+
+struct r600_bo *r600_bomgr_bo_create(struct r600_bomgr *mgr,
+					unsigned size,
+					unsigned alignment,
+					unsigned cfence)
+{
+	struct r600_bo *bo, *tmp;
+	int64_t now;
+
+
+	pipe_mutex_lock(mgr->mutex);
+
+	now = os_time_get();
+	LIST_FOR_EACH_ENTRY_SAFE(bo, tmp, &mgr->delayed, list) {
+		if(r600_bo_is_compat(mgr, bo, size, alignment, cfence)) {
+			LIST_DEL(&bo->list);
+			--mgr->num_delayed;
+			r600_bomgr_timeout_flush(mgr);
+			pipe_mutex_unlock(mgr->mutex);
+			LIST_INITHEAD(&bo->list);
+			pipe_reference_init(&bo->reference, 1);
+			return bo;
+		}
+
+		if(os_time_timeout(bo->start, bo->end, now)) {
+			mgr->num_delayed--;
+			bo->manager_id = 0;
+			LIST_DEL(&bo->list);
+			r600_bo_destroy(mgr->radeon, bo);
+		}
+	}
+
+	pipe_mutex_unlock(mgr->mutex);
+	return NULL;
+}
+
+void r600_bomgr_bo_init(struct r600_bomgr *mgr, struct r600_bo *bo)
+{
+	LIST_INITHEAD(&bo->list);
+	bo->manager_id = 1;
+}
+
+bool r600_bomgr_bo_destroy(struct r600_bomgr *mgr, struct r600_bo *bo)
+{
+	bo->start = os_time_get();
+	bo->end = bo->start + mgr->usecs;
+	pipe_mutex_lock(mgr->mutex);
+	LIST_ADDTAIL(&bo->list, &mgr->delayed);
+	++mgr->num_delayed;
+	pipe_mutex_unlock(mgr->mutex);
+	return FALSE;
+}
+
+void r600_bomgr_destroy(struct r600_bomgr *mgr)
+{
+	struct r600_bo *bo, *tmp;
+
+	pipe_mutex_lock(mgr->mutex);
+	LIST_FOR_EACH_ENTRY_SAFE(bo, tmp, &mgr->delayed, list) {
+		mgr->num_delayed--;
+		bo->manager_id = 0;
+		LIST_DEL(&bo->list);
+		r600_bo_destroy(mgr->radeon, bo);
+	}
+	pipe_mutex_unlock(mgr->mutex);
+
+	FREE(mgr);
+}
+
+struct r600_bomgr *r600_bomgr_create(struct radeon *radeon, unsigned usecs)
+{
+	struct r600_bomgr *mgr;
+
+	mgr = CALLOC_STRUCT(r600_bomgr);
+	if (mgr == NULL)
+		return NULL;
+
+	mgr->radeon = radeon;
+	mgr->usecs = usecs;
+	LIST_INITHEAD(&mgr->delayed);
+	mgr->num_delayed = 0;
+	pipe_mutex_init(mgr->mutex);
+
+	return mgr;
+}