--- /dev/null
+/**************************************************************************
+ *
+ * Copyright © 2007 Intel Corporation
+ * 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>
+ * Eric Anholt <eric@anholt.net>
+ */
+
+#include <xf86drm.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include "glthread.h"
+#include "errno.h"
+#include "mtypes.h"
+#include "dri_bufmgr.h"
+#include "string.h"
+#include "imports.h"
+
+#include "i915_drm.h"
+
+#define BUFMGR_DEBUG 0
+
+#define MAX_RELOCS_PER_LIST 511
+struct intel_reloc_info
+{
+ GLuint type;
+ GLuint reloc;
+ GLuint delta; /* not needed? */
+ GLuint index;
+ drm_handle_t handle;
+};
+
+struct intel_bo_node
+{
+ drmMMListHead head;
+ drmBO *buf;
+ struct drm_i915_op_arg bo_arg;
+ unsigned long arg0;
+ unsigned long arg1;
+ void (*destroy)(void *);
+ void *priv;
+};
+
+struct intel_bo_reloc_list
+{
+ drmMMListHead head;
+ drmBO buf;
+ uint32_t *relocs;
+};
+
+struct intel_bo_reloc_node
+{
+ drmMMListHead head;
+ drm_handle_t handle;
+ uint32_t nr_reloc_types;
+ struct intel_bo_reloc_list type_list;
+};
+
+struct intel_bo_list {
+ unsigned numTarget;
+ unsigned numCurrent;
+ unsigned numOnList;
+ drmMMListHead list;
+ drmMMListHead free;
+ void (*destroy)(void *node);
+};
+
+typedef struct _dri_bufmgr_ttm {
+ dri_bufmgr bufmgr;
+
+ int fd;
+ _glthread_Mutex mutex;
+ unsigned int fence_type;
+ unsigned int fence_type_flush;
+
+ /** ttm relocation list */
+ struct intel_bo_list list;
+ struct intel_bo_list reloc_list;
+
+} dri_bufmgr_ttm;
+
+typedef struct _dri_bo_ttm {
+ dri_bo bo;
+
+ int refcount; /* Protected by bufmgr->mutex */
+ drmBO drm_bo;
+ const char *name;
+ /**
+ * Note whether we are the owner of the buffer, to determine if we must
+ * drmBODestroy or drmBOUnreference to unreference the buffer.
+ */
+ GLboolean owner;
+} dri_bo_ttm;
+
+typedef struct _dri_fence_ttm
+{
+ dri_fence fence;
+
+ int refcount; /* Protected by bufmgr->mutex */
+ const char *name;
+ drmFence drm_fence;
+} dri_fence_ttm;
+
+
+static int i830AdjustListNodes(struct intel_bo_list *list)
+{
+ struct intel_bo_node *node;
+ drmMMListHead *l;
+ int ret = 0;
+
+ while(list->numCurrent < list->numTarget) {
+ node = (struct intel_bo_node *) drmMalloc(sizeof(*node));
+ if (!node) {
+ ret = -ENOMEM;
+ break;
+ }
+ list->numCurrent++;
+ DRMLISTADD(&node->head, &list->free);
+ }
+
+ while(list->numCurrent > list->numTarget) {
+ l = list->free.next;
+ if (l == &list->free)
+ break;
+ DRMLISTDEL(l);
+ node = DRMLISTENTRY(struct intel_bo_node, l, head);
+ list->destroy(node);
+ list->numCurrent--;
+ }
+ return ret;
+}
+
+void intel_bo_free_list(struct intel_bo_list *list)
+{
+ struct intel_bo_node *node;
+ drmMMListHead *l;
+
+ l = list->list.next;
+ while(l != &list->list) {
+ DRMLISTDEL(l);
+ node = DRMLISTENTRY(struct intel_bo_node, l, head);
+ list->destroy(node);
+ l = list->list.next;
+ list->numCurrent--;
+ list->numOnList--;
+ }
+
+ l = list->free.next;
+ while(l != &list->free) {
+ DRMLISTDEL(l);
+ node = DRMLISTENTRY(struct intel_bo_node, l, head);
+ list->destroy(node);
+ l = list->free.next;
+ list->numCurrent--;
+ }
+}
+
+int intel_bo_reset_list(struct intel_bo_list *list)
+{
+ drmMMListHead *l;
+ int ret;
+
+ ret = i830AdjustListNodes(list);
+ if (ret)
+ return ret;
+
+ l = list->list.next;
+ while (l != &list->list) {
+ DRMLISTDEL(l);
+ DRMLISTADD(l, &list->free);
+ list->numOnList--;
+ l = list->list.next;
+ }
+ return i830AdjustListNodes(list);
+}
+
+static void generic_destroy(void *nodep)
+{
+ free(nodep);
+}
+
+int intel_create_bo_list(int numTarget, struct intel_bo_list *list, void (*destroy)(void *))
+{
+ DRMINITLISTHEAD(&list->list);
+ DRMINITLISTHEAD(&list->free);
+ list->numTarget = numTarget;
+ list->numCurrent = 0;
+ list->numOnList = 0;
+ if (list->destroy)
+ list->destroy = destroy;
+ else
+ list->destroy = generic_destroy;
+ return i830AdjustListNodes(list);
+}
+
+
+struct drm_i915_op_arg *
+intel_setup_validate_list(int fd, struct intel_bo_list *list, struct intel_bo_list *reloc_list)
+{
+ struct intel_bo_node *node;
+ struct intel_bo_reloc_node *rl_node;
+ drmMMListHead *l, *rl;
+ struct drm_i915_op_arg *arg, *first;
+ struct drm_bo_op_req *req;
+ uint64_t *prevNext = NULL;
+
+ first = NULL;
+
+ for (l = list->list.next; l != &list->list; l = l->next) {
+ node = DRMLISTENTRY(struct intel_bo_node, l, head);
+
+ arg = &node->bo_arg;
+ req = &arg->d.req;
+
+ if (!first)
+ first = arg;
+
+ if (prevNext)
+ *prevNext = (unsigned long) arg;
+
+ memset(arg, 0, sizeof(*arg));
+ prevNext = &arg->next;
+ req->bo_req.handle = node->buf->handle;
+ req->op = drm_bo_validate;
+ req->bo_req.flags = node->arg0;
+ req->bo_req.hint = 0;
+ req->bo_req.mask = node->arg1;
+ req->bo_req.fence_class = 0; /* Backwards compat. */
+ arg->reloc_handle = 0;
+
+ for (rl = reloc_list->list.next; rl != &reloc_list->list; rl = rl->next) {
+ rl_node = DRMLISTENTRY(struct intel_bo_reloc_node, rl, head);
+
+ if (rl_node->handle == node->buf->handle) {
+ arg->reloc_handle = rl_node->type_list.buf.handle;
+ // drmBOUnmap(fd, &rl_node->type_list.buf);
+ }
+ }
+ }
+
+ if (!first)
+ return 0;
+
+ return first;
+}
+
+void intel_free_validate_list(int fd, struct intel_bo_list *list)
+{
+ struct intel_bo_node *node;
+ drmMMListHead *l;
+
+ for (l = list->list.next; l != &list->list; l = l->next) {
+ node = DRMLISTENTRY(struct intel_bo_node, l, head);
+
+ if (node->destroy)
+ (*node->destroy)(node->priv);
+
+ }
+}
+
+void intel_free_reloc_list(int fd, struct intel_bo_list *reloc_list)
+{
+ struct intel_bo_reloc_node *reloc_node;
+ drmMMListHead *rl, *tmp;
+
+ for (rl = reloc_list->list.next, tmp = rl->next; rl != &reloc_list->list; rl = tmp, tmp = rl->next) {
+ reloc_node = DRMLISTENTRY(struct intel_bo_reloc_node, rl, head);
+
+ DRMLISTDEL(rl);
+
+ if (reloc_node->nr_reloc_types > 1) {
+
+ /* TODO */
+ }
+
+ drmBOUnmap(fd, &reloc_node->type_list.buf);
+ drmBODestroy(fd, &reloc_node->type_list.buf);
+ free(reloc_node);
+ }
+}
+
+int intel_add_validate_buffer(struct intel_bo_list *list, dri_bo *buf, unsigned flags,
+ unsigned mask, int *itemLoc, void (*destroy_cb)(void *))
+{
+ struct intel_bo_node *node, *cur;
+ drmMMListHead *l;
+ int count = 0;
+ int ret = 0;
+ drmBO *buf_bo = &((dri_bo_ttm *)buf)->drm_bo;
+ cur = NULL;
+
+ for (l = list->list.next; l != &list->list; l = l->next) {
+ node = DRMLISTENTRY(struct intel_bo_node, l, head);
+ if (node->buf == buf_bo) {
+ cur = node;
+ break;
+ }
+ count++;
+ }
+
+ if (!cur) {
+ cur = drmMalloc(sizeof(*cur));
+ if (!cur) {
+ return -ENOMEM;
+ }
+ cur->buf = buf_bo;
+ cur->priv = buf;
+ cur->arg0 = flags;
+ cur->arg1 = mask;
+ cur->destroy = destroy_cb;
+ ret = 1;
+
+ DRMLISTADDTAIL(&cur->head, &list->list);
+
+ } else {
+ unsigned memMask = (cur->arg1 | mask) & DRM_BO_MASK_MEM;
+ unsigned memFlags = cur->arg0 & flags & memMask;
+
+ if (!memFlags) {
+#if 0
+ ErrorF("Incompatible memory location requests "
+ "on validate list.\n");
+ ErrorF("Previous flag: 0x%08lx, mask: 0x%08lx\n",
+ cur->arg0, cur->arg1);
+ ErrorF("Current flag: 0x%08lx, mask: 0x%08lx\n",
+ flags, mask);
+#endif
+ return -EINVAL;
+ }
+ if (mask & cur->arg1 & ~DRM_BO_MASK_MEM & (cur->arg0 ^ flags)) {
+#if 0
+ ErrorF("Incompatible buffer flag requests "
+ "on validate list.\n");
+ ErrorF("Previous flag: 0x%08lx, mask: 0x%08lx\n",
+ cur->arg0, cur->arg1);
+ ErrorF("Current flag: 0x%08lx, mask: 0x%08lx\n",
+ flags, mask);
+#endif
+ return -EINVAL;
+ }
+ cur->arg1 |= mask;
+ cur->arg0 = memFlags | ((cur->arg0 | flags) &
+ cur->arg1 & ~DRM_BO_MASK_MEM);
+ }
+ *itemLoc = count;
+ return ret;
+}
+
+#define RELOC0_STRIDE 4
+#define RELOC0_HEADER 4
+#define RELOC_BUF_SIZE ((RELOC0_HEADER + MAX_RELOCS_PER_LIST * RELOC0_STRIDE) * sizeof(uint32_t))
+
+static int intel_create_new_reloc_type_list(int fd, struct intel_bo_reloc_list *cur_type)
+{
+ int ret;
+
+ /* should allocate a drmBO here */
+ ret = drmBOCreate(fd, 0, RELOC_BUF_SIZE, 0,
+ NULL, drm_bo_type_dc,
+ DRM_BO_FLAG_MEM_LOCAL | DRM_BO_FLAG_READ | DRM_BO_FLAG_WRITE | DRM_BO_FLAG_MAPPABLE | DRM_BO_FLAG_CACHED,
+ 0, &cur_type->buf);
+ if (ret)
+ return ret;
+
+ ret = drmBOMap(fd, &cur_type->buf, DRM_BO_FLAG_READ | DRM_BO_FLAG_WRITE, 0, (void **)&cur_type->relocs);
+ if (ret)
+ return ret;
+ return 0;
+}
+
+
+int intel_add_validate_reloc(int fd, struct intel_bo_list *reloc_list, struct intel_reloc_info *reloc_info)
+{
+ struct intel_bo_reloc_node *rl_node, *cur;
+ drmMMListHead *rl, *l;
+ int ret = 0;
+ uint32_t *reloc_start;
+ int num_relocs;
+ struct intel_bo_reloc_list *cur_type;
+
+ cur = NULL;
+
+ for (rl = reloc_list->list.next; rl != &reloc_list->list; rl = rl->next) {
+ rl_node = DRMLISTENTRY(struct intel_bo_reloc_node, rl, head);
+ if (rl_node->handle == reloc_info->handle) {
+ cur = rl_node;
+ break;
+
+ }
+ }
+
+ if (!cur) {
+
+ cur = malloc(sizeof(*cur));
+ if (!cur)
+ return -ENOMEM;
+
+ cur->nr_reloc_types = 1;
+ cur->handle = reloc_info->handle;
+ cur_type = &cur->type_list;
+
+ DRMINITLISTHEAD(&cur->type_list.head);
+ ret = intel_create_new_reloc_type_list(fd, cur_type);
+ if (ret) {
+ return -1;
+ }
+ DRMLISTADDTAIL(&cur->head, &reloc_list->list);
+
+ cur_type->relocs[0] = 0 | (reloc_info->type << 16);
+ cur_type->relocs[1] = 0; // next reloc buffer handle is 0
+
+ } else {
+ int found = 0;
+ if ((cur->type_list.relocs[0] >> 16) == reloc_info->type) {
+ cur_type = &cur->type_list;
+ found = 1;
+ } else {
+ for (l = cur->type_list.head.next; l != &cur->type_list.head; l = l->next) {
+ cur_type = DRMLISTENTRY(struct intel_bo_reloc_list, l, head);
+ if (((cur_type->relocs[0] >> 16) & 0xffff) == reloc_info->type)
+ found = 1;
+ break;
+ }
+ }
+
+ /* didn't find the relocation type */
+ if (!found) {
+ cur_type = malloc(sizeof(*cur_type));
+ if (!cur_type) {
+ return -ENOMEM;
+ }
+
+ ret = intel_create_new_reloc_type_list(fd, cur_type);
+ DRMLISTADDTAIL(&cur_type->head, &cur->type_list.head);
+
+ cur_type->relocs[0] = (reloc_info->type << 16);
+ cur_type->relocs[1] = 0;
+
+ // cur->relocs[cur->nr_reloc_lists-1][1] = 0;// TODO ADD HANDLE HERE
+
+ cur->nr_reloc_types++;
+ }
+ }
+
+ reloc_start = cur_type->relocs;
+
+ num_relocs = (reloc_start[0] & 0xffff);
+
+ reloc_start[num_relocs*RELOC0_STRIDE + RELOC0_HEADER] = reloc_info->reloc;
+ reloc_start[num_relocs*RELOC0_STRIDE + RELOC0_HEADER+1] = reloc_info->delta;
+ reloc_start[num_relocs*RELOC0_STRIDE + RELOC0_HEADER+2] = reloc_info->index;
+ reloc_start[0]++;
+ if (((reloc_start[0] & 0xffff)) > (MAX_RELOCS_PER_LIST)) {
+ return -ENOMEM;
+ }
+ return 0;
+}
+
+
+#if 0
+int
+driFenceSignaled(DriFenceObject * fence, unsigned type)
+{
+ int signaled;
+ int ret;
+
+ if (fence == NULL)
+ return GL_TRUE;
+
+ _glthread_LOCK_MUTEX(fence->mutex);
+ ret = drmFenceSignaled(bufmgr_ttm->fd, &fence->fence, type, &signaled);
+ _glthread_UNLOCK_MUTEX(fence->mutex);
+ BM_CKFATAL(ret);
+ return signaled;
+}
+#endif
+
+static dri_bo *
+dri_ttm_alloc(dri_bufmgr *bufmgr, const char *name,
+ unsigned long size, unsigned int alignment,
+ unsigned int location_mask)
+{
+ dri_bufmgr_ttm *ttm_bufmgr;
+ dri_bo_ttm *ttm_buf;
+ unsigned int pageSize = getpagesize();
+ int ret;
+ unsigned int flags, hint;
+
+ ttm_bufmgr = (dri_bufmgr_ttm *)bufmgr;
+
+ ttm_buf = malloc(sizeof(*ttm_buf));
+ if (!ttm_buf)
+ return NULL;
+
+ /* The mask argument doesn't do anything for us that we want other than
+ * determine which pool (TTM or local) the buffer is allocated into, so just
+ * pass all of the allocation class flags.
+ */
+ flags = location_mask | DRM_BO_FLAG_READ | DRM_BO_FLAG_WRITE |
+ DRM_BO_FLAG_EXE;
+ /* No hints we want to use. */
+ hint = 0;
+
+ ret = drmBOCreate(ttm_bufmgr->fd, 0, size, alignment / pageSize,
+ NULL, drm_bo_type_dc,
+ flags, hint, &ttm_buf->drm_bo);
+ if (ret != 0) {
+ free(ttm_buf);
+ return NULL;
+ }
+ ttm_buf->bo.size = ttm_buf->drm_bo.size;
+ ttm_buf->bo.offset = ttm_buf->drm_bo.offset;
+ ttm_buf->bo.virtual = NULL;
+ ttm_buf->bo.bufmgr = bufmgr;
+ ttm_buf->name = name;
+ ttm_buf->refcount = 1;
+ ttm_buf->owner = GL_TRUE;
+
+#if BUFMGR_DEBUG
+ fprintf(stderr, "bo_create: %p (%s)\n", &ttm_buf->bo, ttm_buf->name);
+#endif
+
+ return &ttm_buf->bo;
+}
+
+/* Our TTM backend doesn't allow creation of static buffers, as that requires
+ * privelege for the non-fake case, and the lock in the fake case where we were
+ * working around the X Server not creating buffers and passing handles to us.
+ */
+static dri_bo *
+dri_ttm_alloc_static(dri_bufmgr *bufmgr, const char *name,
+ unsigned long offset, unsigned long size, void *virtual,
+ unsigned int location_mask)
+{
+ return NULL;
+}
+
+/** Returns a dri_bo wrapping the given buffer object handle.
+ *
+ * This can be used when one application needs to pass a buffer object
+ * to another.
+ */
+dri_bo *
+intel_ttm_bo_create_from_handle(dri_bufmgr *bufmgr, const char *name,
+ unsigned int handle)
+{
+ dri_bufmgr_ttm *ttm_bufmgr;
+ dri_bo_ttm *ttm_buf;
+ int ret;
+
+ ttm_bufmgr = (dri_bufmgr_ttm *)bufmgr;
+
+ ttm_buf = malloc(sizeof(*ttm_buf));
+ if (!ttm_buf)
+ return NULL;
+
+ ret = drmBOReference(ttm_bufmgr->fd, handle, &ttm_buf->drm_bo);
+ if (ret != 0) {
+ free(ttm_buf);
+ return NULL;
+ }
+ ttm_buf->bo.size = ttm_buf->drm_bo.size;
+ ttm_buf->bo.offset = ttm_buf->drm_bo.offset;
+ ttm_buf->bo.virtual = NULL;
+ ttm_buf->bo.bufmgr = bufmgr;
+ ttm_buf->name = name;
+ ttm_buf->refcount = 1;
+ ttm_buf->owner = GL_FALSE;
+
+#if BUFMGR_DEBUG
+ fprintf(stderr, "bo_create_from_handle: %p (%s)\n", &ttm_buf->bo,
+ ttm_buf->name);
+#endif
+
+ return &ttm_buf->bo;
+}
+
+static void
+dri_ttm_bo_reference(dri_bo *buf)
+{
+ dri_bufmgr_ttm *bufmgr_ttm = (dri_bufmgr_ttm *)buf->bufmgr;
+ dri_bo_ttm *ttm_buf = (dri_bo_ttm *)buf;
+
+ _glthread_LOCK_MUTEX(bufmgr_ttm->mutex);
+ ttm_buf->refcount++;
+ _glthread_UNLOCK_MUTEX(bufmgr_ttm->mutex);
+}
+
+static void
+dri_ttm_bo_unreference(dri_bo *buf)
+{
+ dri_bufmgr_ttm *bufmgr_ttm = (dri_bufmgr_ttm *)buf->bufmgr;
+ dri_bo_ttm *ttm_buf = (dri_bo_ttm *)buf;
+
+ if (!buf)
+ return;
+
+ _glthread_LOCK_MUTEX(bufmgr_ttm->mutex);
+ if (--ttm_buf->refcount == 0) {
+ int ret;
+
+ /* XXX Having to use drmBODestroy as the opposite of drmBOCreate instead
+ * of simply unreferencing is madness, and leads to behaviors we may not
+ * want (making the buffer unsharable).
+ */
+ if (ttm_buf->owner)
+ ret = drmBODestroy(bufmgr_ttm->fd, &ttm_buf->drm_bo);
+ else
+ ret = drmBOUnReference(bufmgr_ttm->fd, &ttm_buf->drm_bo);
+ if (ret != 0) {
+ fprintf(stderr, "drmBOUnReference failed (%s): %s\n", ttm_buf->name,
+ strerror(-ret));
+ }
+#if BUFMGR_DEBUG
+ fprintf(stderr, "bo_unreference final: %p (%s)\n",
+ &ttm_buf->bo, ttm_buf->name);
+#endif
+ _glthread_UNLOCK_MUTEX(bufmgr_ttm->mutex);
+ free(buf);
+ return;
+ }
+ _glthread_UNLOCK_MUTEX(bufmgr_ttm->mutex);
+}
+
+static int
+dri_ttm_bo_map(dri_bo *buf, GLboolean write_enable)
+{
+ dri_bufmgr_ttm *bufmgr_ttm;
+ dri_bo_ttm *ttm_buf = (dri_bo_ttm *)buf;
+ unsigned int flags;
+
+ bufmgr_ttm = (dri_bufmgr_ttm *)buf->bufmgr;
+
+ flags = DRM_BO_FLAG_READ;
+ if (write_enable)
+ flags |= DRM_BO_FLAG_WRITE;
+
+ assert(buf->virtual == NULL);
+
+#if BUFMGR_DEBUG
+ fprintf(stderr, "bo_map: %p (%s)\n", &ttm_buf->bo, ttm_buf->name);
+#endif
+
+ return drmBOMap(bufmgr_ttm->fd, &ttm_buf->drm_bo, flags, 0, &buf->virtual);
+}
+
+static int
+dri_ttm_bo_unmap(dri_bo *buf)
+{
+ dri_bufmgr_ttm *bufmgr_ttm;
+ dri_bo_ttm *ttm_buf = (dri_bo_ttm *)buf;
+
+ if (buf == NULL)
+ return 0;
+
+ bufmgr_ttm = (dri_bufmgr_ttm *)buf->bufmgr;
+
+ assert(buf->virtual != NULL);
+
+ buf->virtual = NULL;
+
+#if BUFMGR_DEBUG
+ fprintf(stderr, "bo_unmap: %p (%s)\n", &ttm_buf->bo, ttm_buf->name);
+#endif
+
+ return drmBOUnmap(bufmgr_ttm->fd, &ttm_buf->drm_bo);
+}
+
+static int
+dri_ttm_validate(dri_bo *buf, unsigned int flags)
+{
+ dri_bufmgr_ttm *bufmgr_ttm;
+ dri_bo_ttm *ttm_buf = (dri_bo_ttm *)buf;
+ unsigned int mask;
+ int err;
+
+ /* XXX: Sanity-check whether we've already validated this one under
+ * different flags. See drmAddValidateItem().
+ */
+
+ bufmgr_ttm = (dri_bufmgr_ttm *)buf->bufmgr;
+
+ /* Calculate the appropriate mask to pass to the DRM. There appears to be
+ * be a direct relationship to flags, so it's unnecessary to have it passed
+ * in as an argument.
+ */
+ mask = DRM_BO_MASK_MEM;
+ mask |= flags & (DRM_BO_FLAG_READ | DRM_BO_FLAG_WRITE | DRM_BO_FLAG_EXE);
+
+ err = drmBOValidate(bufmgr_ttm->fd, &ttm_buf->drm_bo, 0, flags, mask, 0);
+
+ if (err == 0) {
+ /* XXX: add to fence list for sanity checking */
+ } else {
+ fprintf(stderr, "failed to validate buffer (%s): %s\n",
+ ttm_buf->name, strerror(-err));
+ }
+
+ buf->offset = ttm_buf->drm_bo.offset;
+
+#if BUFMGR_DEBUG
+ fprintf(stderr, "bo_validate: %p (%s)\n", &ttm_buf->bo, ttm_buf->name);
+#endif
+
+ return err;
+}
+
+static dri_fence *
+dri_ttm_fence_validated(dri_bufmgr *bufmgr, const char *name,
+ GLboolean flushed)
+{
+ dri_fence_ttm *fence_ttm = malloc(sizeof(*fence_ttm));
+ dri_bufmgr_ttm *bufmgr_ttm = (dri_bufmgr_ttm *)bufmgr;
+ int ret;
+ unsigned int type;
+
+ if (!fence_ttm)
+ return NULL;
+
+ if (flushed)
+ type = bufmgr_ttm->fence_type_flush;
+ else
+ type = bufmgr_ttm->fence_type;
+
+ fence_ttm->refcount = 1;
+ fence_ttm->name = name;
+ fence_ttm->fence.bufmgr = bufmgr;
+ ret = drmFenceBuffers(bufmgr_ttm->fd, type, 0, &fence_ttm->drm_fence);
+ if (ret) {
+ fprintf(stderr, "failed to fence (%s): %s\n", name, strerror(-ret));
+ free(fence_ttm);
+ return NULL;
+ }
+
+#if BUFMGR_DEBUG
+ fprintf(stderr, "fence_validated: %p (%s)\n", &fence_ttm->fence,
+ fence_ttm->name);
+#endif
+
+ return &fence_ttm->fence;
+}
+
+static void
+dri_ttm_fence_reference(dri_fence *fence)
+{
+ dri_fence_ttm *fence_ttm = (dri_fence_ttm *)fence;
+ dri_bufmgr_ttm *bufmgr_ttm = (dri_bufmgr_ttm *)fence->bufmgr;
+
+ _glthread_LOCK_MUTEX(bufmgr_ttm->mutex);
+ ++fence_ttm->refcount;
+ _glthread_UNLOCK_MUTEX(bufmgr_ttm->mutex);
+}
+
+static void
+dri_ttm_fence_unreference(dri_fence *fence)
+{
+ dri_fence_ttm *fence_ttm = (dri_fence_ttm *)fence;
+ dri_bufmgr_ttm *bufmgr_ttm = (dri_bufmgr_ttm *)fence->bufmgr;
+
+ if (!fence)
+ return;
+
+ _glthread_LOCK_MUTEX(bufmgr_ttm->mutex);
+ if (--fence_ttm->refcount == 0) {
+ int ret;
+
+ /* XXX Having to use drmFenceDestroy as the opposite of drmFenceBuffers
+ * instead of simply unreferencing is madness, and leads to behaviors we
+ * may not want (making the fence unsharable). This behavior by the DRM
+ * ioctls should be fixed, and drmFenceDestroy eliminated.
+ */
+ ret = drmFenceDestroy(bufmgr_ttm->fd, &fence_ttm->drm_fence);
+ if (ret != 0) {
+ fprintf(stderr, "drmFenceDestroy failed (%s): %s\n",
+ fence_ttm->name, strerror(-ret));
+ }
+
+ _glthread_UNLOCK_MUTEX(bufmgr_ttm->mutex);
+ free(fence);
+ return;
+ }
+ _glthread_UNLOCK_MUTEX(bufmgr_ttm->mutex);
+}
+
+static void
+dri_ttm_fence_wait(dri_fence *fence)
+{
+ dri_fence_ttm *fence_ttm = (dri_fence_ttm *)fence;
+ dri_bufmgr_ttm *bufmgr_ttm = (dri_bufmgr_ttm *)fence->bufmgr;
+ int ret;
+
+ _glthread_LOCK_MUTEX(bufmgr_ttm->mutex);
+ ret = drmFenceWait(bufmgr_ttm->fd, 0, &fence_ttm->drm_fence, 0);
+ _glthread_UNLOCK_MUTEX(bufmgr_ttm->mutex);
+ if (ret != 0) {
+ _mesa_printf("%s:%d: Error %d waiting for fence %s.\n",
+ __FILE__, __LINE__, ret, fence_ttm->name);
+ abort();
+ }
+
+#if BUFMGR_DEBUG
+ fprintf(stderr, "fence_wait: %p (%s)\n", &fence_ttm->fence,
+ fence_ttm->name);
+#endif
+}
+
+static void
+dri_bufmgr_ttm_destroy(dri_bufmgr *bufmgr)
+{
+ dri_bufmgr_ttm *bufmgr_ttm = (dri_bufmgr_ttm *)bufmgr;
+
+ _glthread_DESTROY_MUTEX(bufmgr_ttm->mutex);
+ free(bufmgr);
+}
+
+
+static void intel_dribo_destroy_callback(void *priv)
+{
+ dri_bo *dribo = priv;
+
+ if (dribo) {
+ dri_bo_unreference(dribo);
+ }
+}
+
+static void
+dri_ttm_emit_reloc(dri_bo *batch_buf, GLuint flags, GLuint delta, GLuint offset,
+ dri_bo *relocatee)
+{
+ dri_bo_ttm *ttm_buf = (dri_bo_ttm *)batch_buf;
+ dri_bo_ttm *relocatee_buf = (dri_bo_ttm *)relocatee;
+ dri_bufmgr_ttm *bufmgr_ttm = (dri_bufmgr_ttm *)batch_buf->bufmgr;
+ int newItem;
+ struct intel_reloc_info reloc;
+
+ intel_add_validate_buffer(&bufmgr_ttm->list, relocatee, flags, flags, &newItem, intel_dribo_destroy_callback);
+
+ reloc.type = I915_RELOC_TYPE_0;
+ reloc.reloc = offset;
+ reloc.delta = delta;
+ reloc.index = newItem;
+ reloc.handle = ttm_buf->drm_bo.handle;
+
+ intel_add_validate_reloc(bufmgr_ttm->fd, &bufmgr_ttm->reloc_list, &reloc);
+ return;
+}
+
+
+static void *
+dri_ttm_process_reloc(dri_bo *batch_buf, GLuint *hack)
+{
+ dri_bufmgr_ttm *bufmgr_ttm = (dri_bufmgr_ttm *)batch_buf->bufmgr;
+ void *ptr;
+ int itemLoc;
+
+ intel_add_validate_buffer(&bufmgr_ttm->list, batch_buf, DRM_BO_FLAG_MEM_TT | DRM_BO_FLAG_EXE,
+ DRM_BO_MASK_MEM | DRM_BO_FLAG_EXE, &itemLoc, NULL);
+
+ ptr = intel_setup_validate_list(bufmgr_ttm->fd, &bufmgr_ttm->list, &bufmgr_ttm->reloc_list);
+
+ *hack = ((dri_bo_ttm *)batch_buf)->drm_bo.handle;
+ return ptr;
+}
+
+static void
+dri_ttm_post_submit(dri_bo *batch_buf, dri_fence **last_fence)
+{
+ dri_bufmgr_ttm *bufmgr_ttm = (dri_bufmgr_ttm *)batch_buf->bufmgr;
+
+ intel_free_validate_list(bufmgr_ttm->fd, &bufmgr_ttm->list);
+ intel_free_reloc_list(bufmgr_ttm->fd, &bufmgr_ttm->reloc_list);
+
+ /*
+
+ bb->fence.handle = execbuf.fence_arg.handle;
+ bb->fence.fence_class = execbuf.fence_arg.fence_class;
+ bb->fence.type = execbuf.fence_arg.type;
+ bb->fence.flags = execbuf.fence_arg.flags;
+ bb->fence.signaled = 0;
+ */
+}
+
+/**
+ * Initializes the TTM buffer manager, which uses the kernel to allocate, map,
+ * and manage map buffer objections.
+ *
+ * \param fd File descriptor of the opened DRM device.
+ * \param fence_type Driver-specific fence type used for fences with no flush.
+ * \param fence_type_flush Driver-specific fence type used for fences with a
+ * flush.
+ */
+dri_bufmgr *
+intel_bufmgr_ttm_init(int fd, unsigned int fence_type,
+ unsigned int fence_type_flush)
+{
+ dri_bufmgr_ttm *bufmgr_ttm;
+
+ bufmgr_ttm = malloc(sizeof(*bufmgr_ttm));
+ bufmgr_ttm->fd = fd;
+ bufmgr_ttm->fence_type = fence_type;
+ bufmgr_ttm->fence_type_flush = fence_type_flush;
+ _glthread_INIT_MUTEX(bufmgr_ttm->mutex);
+
+ intel_create_bo_list(40, &bufmgr_ttm->list, NULL);
+ intel_create_bo_list(1, &bufmgr_ttm->reloc_list, NULL);
+
+ bufmgr_ttm->bufmgr.bo_alloc = dri_ttm_alloc;
+ bufmgr_ttm->bufmgr.bo_alloc_static = dri_ttm_alloc_static;
+ bufmgr_ttm->bufmgr.bo_reference = dri_ttm_bo_reference;
+ bufmgr_ttm->bufmgr.bo_unreference = dri_ttm_bo_unreference;
+ bufmgr_ttm->bufmgr.bo_map = dri_ttm_bo_map;
+ bufmgr_ttm->bufmgr.bo_unmap = dri_ttm_bo_unmap;
+ bufmgr_ttm->bufmgr.bo_validate = dri_ttm_validate;
+ bufmgr_ttm->bufmgr.fence_validated = dri_ttm_fence_validated;
+ bufmgr_ttm->bufmgr.fence_reference = dri_ttm_fence_reference;
+ bufmgr_ttm->bufmgr.fence_unreference = dri_ttm_fence_unreference;
+ bufmgr_ttm->bufmgr.fence_wait = dri_ttm_fence_wait;
+ bufmgr_ttm->bufmgr.destroy = dri_bufmgr_ttm_destroy;
+ bufmgr_ttm->bufmgr.emit_reloc = dri_ttm_emit_reloc;
+ bufmgr_ttm->bufmgr.process_relocs = dri_ttm_process_reloc;
+ bufmgr_ttm->bufmgr.post_submit = dri_ttm_post_submit;
+ return &bufmgr_ttm->bufmgr;
+}
+
projects / mesa.git / commitdiff