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Diffstat (limited to 'src/mesa/drivers/dri/common/dri_bufmgr.c')
-rw-r--r--src/mesa/drivers/dri/common/dri_bufmgr.c535
1 files changed, 535 insertions, 0 deletions
diff --git a/src/mesa/drivers/dri/common/dri_bufmgr.c b/src/mesa/drivers/dri/common/dri_bufmgr.c
new file mode 100644
index 0000000000..5747307f3b
--- /dev/null
+++ b/src/mesa/drivers/dri/common/dri_bufmgr.c
@@ -0,0 +1,535 @@
+/**************************************************************************
+ *
+ * Copyright 2006 Tungsten Graphics, Inc., Bismarck, ND., USA
+ * All Rights Reserved.
+ *
+ * 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 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 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 COPYRIGHT HOLDERS, AUTHORS AND/OR ITS 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.
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ *
+ *
+ **************************************************************************/
+/*
+ * Authors: Thomas Hellström <thomas-at-tungstengraphics-dot-com>
+ * Keith Whitwell <keithw-at-tungstengraphics-dot-com>
+ */
+
+#include <xf86drm.h>
+#include <stdlib.h>
+#include "glthread.h"
+#include "errno.h"
+#include "dri_bufmgr.h"
+#include "string.h"
+#include "imports.h"
+#include "dri_bufpool.h"
+
+_glthread_DECLARE_STATIC_MUTEX(bmMutex);
+
+/*
+ * TODO: Introduce fence pools in the same way as
+ * buffer object pools.
+ */
+
+
+
+typedef struct _DriFenceObject
+{
+ int fd;
+ _glthread_Mutex mutex;
+ int refCount;
+ const char *name;
+ drmFence fence;
+} DriFenceObject;
+
+typedef struct _DriBufferObject
+{
+ DriBufferPool *pool;
+ _glthread_Mutex mutex;
+ int refCount;
+ const char *name;
+ unsigned flags;
+ unsigned hint;
+ unsigned alignment;
+ void *private;
+ /* user-space buffer: */
+ unsigned userBuffer;
+ void *userData;
+ unsigned userSize;
+} DriBufferObject;
+
+
+void
+bmError(int val, const char *file, const char *function, int line)
+{
+ _mesa_printf("Fatal video memory manager error \"%s\".\n"
+ "Check kernel logs or set the LIBGL_DEBUG\n"
+ "environment variable to \"verbose\" for more info.\n"
+ "Detected in file %s, line %d, function %s.\n",
+ strerror(-val), file, line, function);
+#ifndef NDEBUG
+ abort();
+#else
+ abort();
+#endif
+}
+
+DriFenceObject *
+driFenceBuffers(int fd, char *name, unsigned flags)
+{
+ DriFenceObject *fence = (DriFenceObject *) malloc(sizeof(*fence));
+ int ret;
+
+ if (!fence)
+ BM_CKFATAL(-EINVAL);
+
+ _glthread_LOCK_MUTEX(bmMutex);
+ fence->refCount = 1;
+ fence->name = name;
+ fence->fd = fd;
+ _glthread_INIT_MUTEX(fence->mutex);
+ ret = drmFenceBuffers(fd, flags, &fence->fence);
+ _glthread_UNLOCK_MUTEX(bmMutex);
+ if (ret) {
+ free(fence);
+ BM_CKFATAL(ret);
+ }
+ return fence;
+}
+
+
+unsigned
+driFenceType(DriFenceObject * fence)
+{
+ unsigned ret;
+
+ _glthread_LOCK_MUTEX(bmMutex);
+ ret = fence->fence.flags;
+ _glthread_UNLOCK_MUTEX(bmMutex);
+
+ return ret;
+}
+
+
+DriFenceObject *
+driFenceReference(DriFenceObject * fence)
+{
+ _glthread_LOCK_MUTEX(bmMutex);
+ ++fence->refCount;
+ _glthread_UNLOCK_MUTEX(bmMutex);
+ return fence;
+}
+
+void
+driFenceUnReference(DriFenceObject * fence)
+{
+ if (!fence)
+ return;
+
+ _glthread_LOCK_MUTEX(bmMutex);
+ if (--fence->refCount == 0) {
+ drmFenceDestroy(fence->fd, &fence->fence);
+ free(fence);
+ }
+ _glthread_UNLOCK_MUTEX(bmMutex);
+}
+
+void
+driFenceFinish(DriFenceObject * fence, unsigned type, int lazy)
+{
+ int ret;
+ unsigned flags = (lazy) ? DRM_FENCE_FLAG_WAIT_LAZY : 0;
+
+ _glthread_LOCK_MUTEX(fence->mutex);
+ ret = drmFenceWait(fence->fd, flags, &fence->fence, type);
+ _glthread_UNLOCK_MUTEX(fence->mutex);
+ BM_CKFATAL(ret);
+}
+
+int
+driFenceSignaled(DriFenceObject * fence, unsigned type)
+{
+ int signaled;
+ int ret;
+
+ if (fence == NULL)
+ return GL_TRUE;
+
+ _glthread_LOCK_MUTEX(fence->mutex);
+ ret = drmFenceSignaled(fence->fd, &fence->fence, type, &signaled);
+ _glthread_UNLOCK_MUTEX(fence->mutex);
+ BM_CKFATAL(ret);
+ return signaled;
+}
+
+
+extern drmBO *
+driBOKernel(struct _DriBufferObject *buf)
+{
+ drmBO *ret;
+
+ assert(buf->private != NULL);
+ ret = buf->pool->kernel(buf->pool, buf->private);
+ if (!ret)
+ BM_CKFATAL(-EINVAL);
+
+ return ret;
+}
+
+void
+driBOWaitIdle(struct _DriBufferObject *buf, int lazy)
+{
+ struct _DriBufferPool *pool;
+ void *priv;
+
+ _glthread_LOCK_MUTEX(buf->mutex);
+ pool = buf->pool;
+ priv = buf->private;
+ _glthread_UNLOCK_MUTEX(buf->mutex);
+
+ assert(priv != NULL);
+ BM_CKFATAL(buf->pool->waitIdle(pool, priv, lazy));
+}
+
+void *
+driBOMap(struct _DriBufferObject *buf, unsigned flags, unsigned hint)
+{
+ if (buf->userBuffer) {
+ return buf->userData;
+ }
+ else {
+ void *virtual;
+
+ assert(buf->private != NULL);
+
+ _glthread_LOCK_MUTEX(buf->mutex);
+ BM_CKFATAL(buf->pool->map(buf->pool, buf->private, flags, hint, &virtual));
+ _glthread_UNLOCK_MUTEX(buf->mutex);
+ return virtual;
+ }
+}
+
+void
+driBOUnmap(struct _DriBufferObject *buf)
+{
+ if (!buf->userBuffer) {
+ assert(buf->private != NULL);
+
+ buf->pool->unmap(buf->pool, buf->private);
+ }
+}
+
+unsigned long
+driBOOffset(struct _DriBufferObject *buf)
+{
+ unsigned long ret;
+
+ assert(buf->private != NULL);
+
+ _glthread_LOCK_MUTEX(buf->mutex);
+ ret = buf->pool->offset(buf->pool, buf->private);
+ _glthread_UNLOCK_MUTEX(buf->mutex);
+ return ret;
+}
+
+unsigned
+driBOFlags(struct _DriBufferObject *buf)
+{
+ unsigned ret;
+
+ assert(buf->private != NULL);
+
+ _glthread_LOCK_MUTEX(buf->mutex);
+ ret = buf->pool->flags(buf->pool, buf->private);
+ _glthread_UNLOCK_MUTEX(buf->mutex);
+ return ret;
+}
+
+struct _DriBufferObject *
+driBOReference(struct _DriBufferObject *buf)
+{
+ _glthread_LOCK_MUTEX(bmMutex);
+ if (++buf->refCount == 1) {
+ BM_CKFATAL(-EINVAL);
+ }
+ _glthread_UNLOCK_MUTEX(bmMutex);
+ return buf;
+}
+
+void
+driBOUnReference(struct _DriBufferObject *buf)
+{
+ int tmp;
+
+ if (!buf)
+ return;
+
+ _glthread_LOCK_MUTEX(bmMutex);
+ tmp = --buf->refCount;
+ _glthread_UNLOCK_MUTEX(bmMutex);
+ if (!tmp) {
+ if (buf->private)
+ buf->pool->destroy(buf->pool, buf->private);
+ free(buf);
+ }
+}
+
+void
+driBOData(struct _DriBufferObject *buf,
+ unsigned size, const void *data, unsigned flags)
+{
+ void *virtual;
+ int newBuffer;
+ struct _DriBufferPool *pool;
+
+ assert(!buf->userBuffer); /* XXX just do a memcpy? */
+
+ _glthread_LOCK_MUTEX(buf->mutex);
+ pool = buf->pool;
+ if (!pool->create) {
+ _mesa_error(NULL, GL_INVALID_OPERATION,
+ "driBOData called on invalid buffer\n");
+ BM_CKFATAL(-EINVAL);
+ }
+ newBuffer = !buf->private || (pool->size(pool, buf->private) < size) ||
+ pool->map(pool, buf->private, DRM_BO_FLAG_WRITE,
+ DRM_BO_HINT_DONT_BLOCK, &virtual);
+
+ if (newBuffer) {
+ if (buf->private)
+ pool->destroy(pool, buf->private);
+ if (!flags)
+ flags = buf->flags;
+ buf->private = pool->create(pool, size, flags, DRM_BO_HINT_DONT_FENCE,
+ buf->alignment);
+ if (!buf->private)
+ BM_CKFATAL(-ENOMEM);
+ BM_CKFATAL(pool->map(pool, buf->private,
+ DRM_BO_FLAG_WRITE,
+ DRM_BO_HINT_DONT_BLOCK, &virtual));
+ }
+
+ if (data != NULL)
+ memcpy(virtual, data, size);
+
+ BM_CKFATAL(pool->unmap(pool, buf->private));
+ _glthread_UNLOCK_MUTEX(buf->mutex);
+}
+
+void
+driBOSubData(struct _DriBufferObject *buf,
+ unsigned long offset, unsigned long size, const void *data)
+{
+ void *virtual;
+
+ assert(!buf->userBuffer); /* XXX just do a memcpy? */
+
+ _glthread_LOCK_MUTEX(buf->mutex);
+ if (size && data) {
+ BM_CKFATAL(buf->pool->map(buf->pool, buf->private,
+ DRM_BO_FLAG_WRITE, 0, &virtual));
+ memcpy((unsigned char *) virtual + offset, data, size);
+ BM_CKFATAL(buf->pool->unmap(buf->pool, buf->private));
+ }
+ _glthread_UNLOCK_MUTEX(buf->mutex);
+}
+
+void
+driBOGetSubData(struct _DriBufferObject *buf,
+ unsigned long offset, unsigned long size, void *data)
+{
+ void *virtual;
+
+ assert(!buf->userBuffer); /* XXX just do a memcpy? */
+
+ _glthread_LOCK_MUTEX(buf->mutex);
+ if (size && data) {
+ BM_CKFATAL(buf->pool->map(buf->pool, buf->private,
+ DRM_BO_FLAG_READ, 0, &virtual));
+ memcpy(data, (unsigned char *) virtual + offset, size);
+ BM_CKFATAL(buf->pool->unmap(buf->pool, buf->private));
+ }
+ _glthread_UNLOCK_MUTEX(buf->mutex);
+}
+
+void
+driBOSetStatic(struct _DriBufferObject *buf,
+ unsigned long offset,
+ unsigned long size, void *virtual, unsigned flags)
+{
+ assert(!buf->userBuffer); /* XXX what to do? */
+
+ _glthread_LOCK_MUTEX(buf->mutex);
+ if (buf->private != NULL) {
+ _mesa_error(NULL, GL_INVALID_OPERATION,
+ "Invalid buffer for setStatic\n");
+ BM_CKFATAL(-EINVAL);
+ }
+ if (buf->pool->setstatic == NULL) {
+ _mesa_error(NULL, GL_INVALID_OPERATION,
+ "Invalid buffer pool for setStatic\n");
+ BM_CKFATAL(-EINVAL);
+ }
+
+ if (!flags)
+ flags = buf->flags;
+
+ buf->private = buf->pool->setstatic(buf->pool, offset, size,
+ virtual, flags);
+ if (!buf->private) {
+ _mesa_error(NULL, GL_OUT_OF_MEMORY,
+ "Invalid buffer pool for setStatic\n");
+ BM_CKFATAL(-ENOMEM);
+ }
+ _glthread_UNLOCK_MUTEX(buf->mutex);
+}
+
+
+
+void
+driGenBuffers(struct _DriBufferPool *pool,
+ const char *name,
+ unsigned n,
+ struct _DriBufferObject *buffers[],
+ unsigned alignment, unsigned flags, unsigned hint)
+{
+ struct _DriBufferObject *buf;
+ int i;
+
+ flags = (flags) ? flags : DRM_BO_FLAG_MEM_TT | DRM_BO_FLAG_MEM_VRAM |
+ DRM_BO_FLAG_MEM_LOCAL | DRM_BO_FLAG_READ | DRM_BO_FLAG_WRITE;
+
+
+ for (i = 0; i < n; ++i) {
+ buf = (struct _DriBufferObject *) calloc(1, sizeof(*buf));
+ if (!buf)
+ BM_CKFATAL(-ENOMEM);
+
+ _glthread_INIT_MUTEX(buf->mutex);
+ _glthread_LOCK_MUTEX(buf->mutex);
+ _glthread_LOCK_MUTEX(bmMutex);
+ buf->refCount = 1;
+ _glthread_UNLOCK_MUTEX(bmMutex);
+ buf->flags = flags;
+ buf->hint = hint;
+ buf->name = name;
+ buf->alignment = alignment;
+ buf->pool = pool;
+ _glthread_UNLOCK_MUTEX(buf->mutex);
+ buffers[i] = buf;
+ }
+}
+
+void
+driGenUserBuffer(struct _DriBufferPool *pool,
+ const char *name,
+ struct _DriBufferObject **buffers,
+ void *ptr, unsigned bytes)
+{
+ const unsigned alignment = 1, flags = 0, hint = 0;
+
+ driGenBuffers(pool, name, 1, buffers, alignment, flags, hint);
+
+ (*buffers)->userBuffer = 1;
+ (*buffers)->userData = ptr;
+ (*buffers)->userSize = bytes;
+}
+
+
+void
+driDeleteBuffers(unsigned n, struct _DriBufferObject *buffers[])
+{
+ int i;
+
+ for (i = 0; i < n; ++i) {
+ driBOUnReference(buffers[i]);
+ }
+}
+
+
+void
+driInitBufMgr(int fd)
+{
+ ;
+}
+
+
+void
+driBOCreateList(int target, drmBOList * list)
+{
+ _glthread_LOCK_MUTEX(bmMutex);
+ BM_CKFATAL(drmBOCreateList(target, list));
+ _glthread_UNLOCK_MUTEX(bmMutex);
+}
+
+void
+driBOResetList(drmBOList * list)
+{
+ _glthread_LOCK_MUTEX(bmMutex);
+ BM_CKFATAL(drmBOResetList(list));
+ _glthread_UNLOCK_MUTEX(bmMutex);
+}
+
+void
+driBOAddListItem(drmBOList * list, struct _DriBufferObject *buf,
+ unsigned flags, unsigned mask)
+{
+ int newItem;
+
+ _glthread_LOCK_MUTEX(buf->mutex);
+ _glthread_LOCK_MUTEX(bmMutex);
+ BM_CKFATAL(drmAddValidateItem(list, driBOKernel(buf),
+ flags, mask, &newItem));
+ _glthread_UNLOCK_MUTEX(bmMutex);
+
+ /*
+ * Tell userspace pools to validate the buffer. This should be a
+ * noop if the pool is already validated.
+ * FIXME: We should have a list for this as well.
+ */
+
+ if (buf->pool->validate) {
+ BM_CKFATAL(buf->pool->validate(buf->pool, buf->private));
+ }
+
+ _glthread_UNLOCK_MUTEX(buf->mutex);
+}
+
+void
+driBOFence(struct _DriBufferObject *buf, struct _DriFenceObject *fence)
+{
+ _glthread_LOCK_MUTEX(buf->mutex);
+ BM_CKFATAL(buf->pool->fence(buf->pool, buf->private, fence));
+ _glthread_UNLOCK_MUTEX(buf->mutex);
+
+}
+
+void
+driBOValidateList(int fd, drmBOList * list)
+{
+ _glthread_LOCK_MUTEX(bmMutex);
+ BM_CKFATAL(drmBOValidateList(fd, list));
+ _glthread_UNLOCK_MUTEX(bmMutex);
+}
+
+void
+driPoolTakeDown(struct _DriBufferPool *pool)
+{
+ pool->takeDown(pool);
+
+}