ASR_BASE
Change-Id: Icf3719cc0afe3eeb3edc7fa80a2eb5199ca9dda1
diff --git a/marvell/linux/drivers/gpu/drm/qxl/qxl_ioctl.c b/marvell/linux/drivers/gpu/drm/qxl/qxl_ioctl.c
new file mode 100644
index 0000000..72f3f1b
--- /dev/null
+++ b/marvell/linux/drivers/gpu/drm/qxl/qxl_ioctl.c
@@ -0,0 +1,444 @@
+/*
+ * Copyright 2013 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
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * 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 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 NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) 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: Dave Airlie
+ * Alon Levy
+ */
+
+#include <linux/pci.h>
+#include <linux/uaccess.h>
+
+#include "qxl_drv.h"
+#include "qxl_object.h"
+
+/*
+ * TODO: allocating a new gem(in qxl_bo) for each request.
+ * This is wasteful since bo's are page aligned.
+ */
+static int qxl_alloc_ioctl(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct qxl_device *qdev = dev->dev_private;
+ struct drm_qxl_alloc *qxl_alloc = data;
+ int ret;
+ struct qxl_bo *qobj;
+ uint32_t handle;
+ u32 domain = QXL_GEM_DOMAIN_VRAM;
+
+ if (qxl_alloc->size == 0) {
+ DRM_ERROR("invalid size %d\n", qxl_alloc->size);
+ return -EINVAL;
+ }
+ ret = qxl_gem_object_create_with_handle(qdev, file_priv,
+ domain,
+ qxl_alloc->size,
+ NULL,
+ &qobj, &handle);
+ if (ret) {
+ DRM_ERROR("%s: failed to create gem ret=%d\n",
+ __func__, ret);
+ return -ENOMEM;
+ }
+ qxl_alloc->handle = handle;
+ return 0;
+}
+
+static int qxl_map_ioctl(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct qxl_device *qdev = dev->dev_private;
+ struct drm_qxl_map *qxl_map = data;
+
+ return qxl_mode_dumb_mmap(file_priv, &qdev->ddev, qxl_map->handle,
+ &qxl_map->offset);
+}
+
+struct qxl_reloc_info {
+ int type;
+ struct qxl_bo *dst_bo;
+ uint32_t dst_offset;
+ struct qxl_bo *src_bo;
+ int src_offset;
+};
+
+/*
+ * dst must be validated, i.e. whole bo on vram/surfacesram (right now all bo's
+ * are on vram).
+ * *(dst + dst_off) = qxl_bo_physical_address(src, src_off)
+ */
+static void
+apply_reloc(struct qxl_device *qdev, struct qxl_reloc_info *info)
+{
+ void *reloc_page;
+
+ reloc_page = qxl_bo_kmap_atomic_page(qdev, info->dst_bo, info->dst_offset & PAGE_MASK);
+ *(uint64_t *)(reloc_page + (info->dst_offset & ~PAGE_MASK)) = qxl_bo_physical_address(qdev,
+ info->src_bo,
+ info->src_offset);
+ qxl_bo_kunmap_atomic_page(qdev, info->dst_bo, reloc_page);
+}
+
+static void
+apply_surf_reloc(struct qxl_device *qdev, struct qxl_reloc_info *info)
+{
+ uint32_t id = 0;
+ void *reloc_page;
+
+ if (info->src_bo && !info->src_bo->is_primary)
+ id = info->src_bo->surface_id;
+
+ reloc_page = qxl_bo_kmap_atomic_page(qdev, info->dst_bo, info->dst_offset & PAGE_MASK);
+ *(uint32_t *)(reloc_page + (info->dst_offset & ~PAGE_MASK)) = id;
+ qxl_bo_kunmap_atomic_page(qdev, info->dst_bo, reloc_page);
+}
+
+/* return holding the reference to this object */
+static int qxlhw_handle_to_bo(struct drm_file *file_priv, uint64_t handle,
+ struct qxl_release *release, struct qxl_bo **qbo_p)
+{
+ struct drm_gem_object *gobj;
+ struct qxl_bo *qobj;
+ int ret;
+
+ gobj = drm_gem_object_lookup(file_priv, handle);
+ if (!gobj)
+ return -EINVAL;
+
+ qobj = gem_to_qxl_bo(gobj);
+
+ ret = qxl_release_list_add(release, qobj);
+ drm_gem_object_put_unlocked(gobj);
+ if (ret)
+ return ret;
+
+ *qbo_p = qobj;
+ return 0;
+}
+
+/*
+ * Usage of execbuffer:
+ * Relocations need to take into account the full QXLDrawable size.
+ * However, the command as passed from user space must *not* contain the initial
+ * QXLReleaseInfo struct (first XXX bytes)
+ */
+static int qxl_process_single_command(struct qxl_device *qdev,
+ struct drm_qxl_command *cmd,
+ struct drm_file *file_priv)
+{
+ struct qxl_reloc_info *reloc_info;
+ int release_type;
+ struct qxl_release *release;
+ struct qxl_bo *cmd_bo;
+ void *fb_cmd;
+ int i, ret, num_relocs;
+ int unwritten;
+
+ switch (cmd->type) {
+ case QXL_CMD_DRAW:
+ release_type = QXL_RELEASE_DRAWABLE;
+ break;
+ case QXL_CMD_SURFACE:
+ case QXL_CMD_CURSOR:
+ default:
+ DRM_DEBUG("Only draw commands in execbuffers\n");
+ return -EINVAL;
+ break;
+ }
+
+ if (cmd->command_size > PAGE_SIZE - sizeof(union qxl_release_info))
+ return -EINVAL;
+
+ if (!access_ok(u64_to_user_ptr(cmd->command),
+ cmd->command_size))
+ return -EFAULT;
+
+ reloc_info = kmalloc_array(cmd->relocs_num,
+ sizeof(struct qxl_reloc_info), GFP_KERNEL);
+ if (!reloc_info)
+ return -ENOMEM;
+
+ ret = qxl_alloc_release_reserved(qdev,
+ sizeof(union qxl_release_info) +
+ cmd->command_size,
+ release_type,
+ &release,
+ &cmd_bo);
+ if (ret)
+ goto out_free_reloc;
+
+ /* TODO copy slow path code from i915 */
+ fb_cmd = qxl_bo_kmap_atomic_page(qdev, cmd_bo, (release->release_offset & PAGE_MASK));
+ unwritten = __copy_from_user_inatomic_nocache
+ (fb_cmd + sizeof(union qxl_release_info) + (release->release_offset & ~PAGE_MASK),
+ u64_to_user_ptr(cmd->command), cmd->command_size);
+
+ {
+ struct qxl_drawable *draw = fb_cmd;
+
+ draw->mm_time = qdev->rom->mm_clock;
+ }
+
+ qxl_bo_kunmap_atomic_page(qdev, cmd_bo, fb_cmd);
+ if (unwritten) {
+ DRM_ERROR("got unwritten %d\n", unwritten);
+ ret = -EFAULT;
+ goto out_free_release;
+ }
+
+ /* fill out reloc info structs */
+ num_relocs = 0;
+ for (i = 0; i < cmd->relocs_num; ++i) {
+ struct drm_qxl_reloc reloc;
+ struct drm_qxl_reloc __user *u = u64_to_user_ptr(cmd->relocs);
+
+ if (copy_from_user(&reloc, u + i, sizeof(reloc))) {
+ ret = -EFAULT;
+ goto out_free_bos;
+ }
+
+ /* add the bos to the list of bos to validate -
+ need to validate first then process relocs? */
+ if (reloc.reloc_type != QXL_RELOC_TYPE_BO && reloc.reloc_type != QXL_RELOC_TYPE_SURF) {
+ DRM_DEBUG("unknown reloc type %d\n", reloc.reloc_type);
+
+ ret = -EINVAL;
+ goto out_free_bos;
+ }
+ reloc_info[i].type = reloc.reloc_type;
+
+ if (reloc.dst_handle) {
+ ret = qxlhw_handle_to_bo(file_priv, reloc.dst_handle, release,
+ &reloc_info[i].dst_bo);
+ if (ret)
+ goto out_free_bos;
+ reloc_info[i].dst_offset = reloc.dst_offset;
+ } else {
+ reloc_info[i].dst_bo = cmd_bo;
+ reloc_info[i].dst_offset = reloc.dst_offset + release->release_offset;
+ }
+ num_relocs++;
+
+ /* reserve and validate the reloc dst bo */
+ if (reloc.reloc_type == QXL_RELOC_TYPE_BO || reloc.src_handle) {
+ ret = qxlhw_handle_to_bo(file_priv, reloc.src_handle, release,
+ &reloc_info[i].src_bo);
+ if (ret)
+ goto out_free_bos;
+ reloc_info[i].src_offset = reloc.src_offset;
+ } else {
+ reloc_info[i].src_bo = NULL;
+ reloc_info[i].src_offset = 0;
+ }
+ }
+
+ /* validate all buffers */
+ ret = qxl_release_reserve_list(release, false);
+ if (ret)
+ goto out_free_bos;
+
+ for (i = 0; i < cmd->relocs_num; ++i) {
+ if (reloc_info[i].type == QXL_RELOC_TYPE_BO)
+ apply_reloc(qdev, &reloc_info[i]);
+ else if (reloc_info[i].type == QXL_RELOC_TYPE_SURF)
+ apply_surf_reloc(qdev, &reloc_info[i]);
+ }
+
+ qxl_release_fence_buffer_objects(release);
+ ret = qxl_push_command_ring_release(qdev, release, cmd->type, true);
+
+out_free_bos:
+out_free_release:
+ if (ret)
+ qxl_release_free(qdev, release);
+out_free_reloc:
+ kfree(reloc_info);
+ return ret;
+}
+
+static int qxl_execbuffer_ioctl(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct qxl_device *qdev = dev->dev_private;
+ struct drm_qxl_execbuffer *execbuffer = data;
+ struct drm_qxl_command user_cmd;
+ int cmd_num;
+ int ret;
+
+ for (cmd_num = 0; cmd_num < execbuffer->commands_num; ++cmd_num) {
+
+ struct drm_qxl_command __user *commands =
+ u64_to_user_ptr(execbuffer->commands);
+
+ if (copy_from_user(&user_cmd, commands + cmd_num,
+ sizeof(user_cmd)))
+ return -EFAULT;
+
+ ret = qxl_process_single_command(qdev, &user_cmd, file_priv);
+ if (ret)
+ return ret;
+ }
+ return 0;
+}
+
+static int qxl_update_area_ioctl(struct drm_device *dev, void *data,
+ struct drm_file *file)
+{
+ struct qxl_device *qdev = dev->dev_private;
+ struct drm_qxl_update_area *update_area = data;
+ struct qxl_rect area = {.left = update_area->left,
+ .top = update_area->top,
+ .right = update_area->right,
+ .bottom = update_area->bottom};
+ int ret;
+ struct drm_gem_object *gobj = NULL;
+ struct qxl_bo *qobj = NULL;
+ struct ttm_operation_ctx ctx = { true, false };
+
+ if (update_area->left >= update_area->right ||
+ update_area->top >= update_area->bottom)
+ return -EINVAL;
+
+ gobj = drm_gem_object_lookup(file, update_area->handle);
+ if (gobj == NULL)
+ return -ENOENT;
+
+ qobj = gem_to_qxl_bo(gobj);
+
+ ret = qxl_bo_reserve(qobj, false);
+ if (ret)
+ goto out;
+
+ if (!qobj->pin_count) {
+ qxl_ttm_placement_from_domain(qobj, qobj->type, false);
+ ret = ttm_bo_validate(&qobj->tbo, &qobj->placement, &ctx);
+ if (unlikely(ret))
+ goto out;
+ }
+
+ ret = qxl_bo_check_id(qdev, qobj);
+ if (ret)
+ goto out2;
+ if (!qobj->surface_id)
+ DRM_ERROR("got update area for surface with no id %d\n", update_area->handle);
+ ret = qxl_io_update_area(qdev, qobj, &area);
+
+out2:
+ qxl_bo_unreserve(qobj);
+
+out:
+ drm_gem_object_put_unlocked(gobj);
+ return ret;
+}
+
+static int qxl_getparam_ioctl(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct qxl_device *qdev = dev->dev_private;
+ struct drm_qxl_getparam *param = data;
+
+ switch (param->param) {
+ case QXL_PARAM_NUM_SURFACES:
+ param->value = qdev->rom->n_surfaces;
+ break;
+ case QXL_PARAM_MAX_RELOCS:
+ param->value = QXL_MAX_RES;
+ break;
+ default:
+ return -EINVAL;
+ }
+ return 0;
+}
+
+static int qxl_clientcap_ioctl(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct qxl_device *qdev = dev->dev_private;
+ struct drm_qxl_clientcap *param = data;
+ int byte, idx;
+
+ byte = param->index / 8;
+ idx = param->index % 8;
+
+ if (dev->pdev->revision < 4)
+ return -ENOSYS;
+
+ if (byte >= 58)
+ return -ENOSYS;
+
+ if (qdev->rom->client_capabilities[byte] & (1 << idx))
+ return 0;
+ return -ENOSYS;
+}
+
+static int qxl_alloc_surf_ioctl(struct drm_device *dev, void *data,
+ struct drm_file *file)
+{
+ struct qxl_device *qdev = dev->dev_private;
+ struct drm_qxl_alloc_surf *param = data;
+ struct qxl_bo *qobj;
+ int handle;
+ int ret;
+ int size, actual_stride;
+ struct qxl_surface surf;
+
+ /* work out size allocate bo with handle */
+ actual_stride = param->stride < 0 ? -param->stride : param->stride;
+ size = actual_stride * param->height + actual_stride;
+
+ surf.format = param->format;
+ surf.width = param->width;
+ surf.height = param->height;
+ surf.stride = param->stride;
+ surf.data = 0;
+
+ ret = qxl_gem_object_create_with_handle(qdev, file,
+ QXL_GEM_DOMAIN_SURFACE,
+ size,
+ &surf,
+ &qobj, &handle);
+ if (ret) {
+ DRM_ERROR("%s: failed to create gem ret=%d\n",
+ __func__, ret);
+ return -ENOMEM;
+ } else
+ param->handle = handle;
+ return ret;
+}
+
+const struct drm_ioctl_desc qxl_ioctls[] = {
+ DRM_IOCTL_DEF_DRV(QXL_ALLOC, qxl_alloc_ioctl, DRM_AUTH),
+
+ DRM_IOCTL_DEF_DRV(QXL_MAP, qxl_map_ioctl, DRM_AUTH),
+
+ DRM_IOCTL_DEF_DRV(QXL_EXECBUFFER, qxl_execbuffer_ioctl,
+ DRM_AUTH),
+ DRM_IOCTL_DEF_DRV(QXL_UPDATE_AREA, qxl_update_area_ioctl,
+ DRM_AUTH),
+ DRM_IOCTL_DEF_DRV(QXL_GETPARAM, qxl_getparam_ioctl,
+ DRM_AUTH),
+ DRM_IOCTL_DEF_DRV(QXL_CLIENTCAP, qxl_clientcap_ioctl,
+ DRM_AUTH),
+
+ DRM_IOCTL_DEF_DRV(QXL_ALLOC_SURF, qxl_alloc_surf_ioctl,
+ DRM_AUTH),
+};
+
+int qxl_max_ioctls = ARRAY_SIZE(qxl_ioctls);