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path: root/drivers/gpu/drm/vmwgfx/vmwgfx_ioctl.c
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Diffstat (limited to 'drivers/gpu/drm/vmwgfx/vmwgfx_ioctl.c')
-rw-r--r--drivers/gpu/drm/vmwgfx/vmwgfx_ioctl.c317
1 files changed, 317 insertions, 0 deletions
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_ioctl.c b/drivers/gpu/drm/vmwgfx/vmwgfx_ioctl.c
new file mode 100644
index 000000000..a1da5678c
--- /dev/null
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_ioctl.c
@@ -0,0 +1,317 @@
+// SPDX-License-Identifier: GPL-2.0 OR MIT
+/**************************************************************************
+ *
+ * Copyright 2009-2022 VMware, Inc., Palo Alto, CA., USA
+ *
+ * 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 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 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.
+ *
+ **************************************************************************/
+
+#include "vmwgfx_drv.h"
+#include "vmwgfx_devcaps.h"
+#include "vmwgfx_kms.h"
+
+#include <drm/vmwgfx_drm.h>
+#include <linux/pci.h>
+
+int vmw_getparam_ioctl(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct vmw_private *dev_priv = vmw_priv(dev);
+ struct drm_vmw_getparam_arg *param =
+ (struct drm_vmw_getparam_arg *)data;
+ struct vmw_fpriv *vmw_fp = vmw_fpriv(file_priv);
+
+ switch (param->param) {
+ case DRM_VMW_PARAM_NUM_STREAMS:
+ param->value = vmw_overlay_num_overlays(dev_priv);
+ break;
+ case DRM_VMW_PARAM_NUM_FREE_STREAMS:
+ param->value = vmw_overlay_num_free_overlays(dev_priv);
+ break;
+ case DRM_VMW_PARAM_3D:
+ param->value = vmw_supports_3d(dev_priv) ? 1 : 0;
+ break;
+ case DRM_VMW_PARAM_HW_CAPS:
+ param->value = dev_priv->capabilities;
+ break;
+ case DRM_VMW_PARAM_HW_CAPS2:
+ param->value = dev_priv->capabilities2;
+ break;
+ case DRM_VMW_PARAM_FIFO_CAPS:
+ param->value = vmw_fifo_caps(dev_priv);
+ break;
+ case DRM_VMW_PARAM_MAX_FB_SIZE:
+ param->value = dev_priv->max_primary_mem;
+ break;
+ case DRM_VMW_PARAM_FIFO_HW_VERSION:
+ {
+ if ((dev_priv->capabilities & SVGA_CAP_GBOBJECTS))
+ param->value = SVGA3D_HWVERSION_WS8_B1;
+ else
+ param->value = vmw_fifo_mem_read(
+ dev_priv,
+ ((vmw_fifo_caps(dev_priv) &
+ SVGA_FIFO_CAP_3D_HWVERSION_REVISED) ?
+ SVGA_FIFO_3D_HWVERSION_REVISED :
+ SVGA_FIFO_3D_HWVERSION));
+ break;
+ }
+ case DRM_VMW_PARAM_MAX_SURF_MEMORY:
+ if ((dev_priv->capabilities & SVGA_CAP_GBOBJECTS) &&
+ !vmw_fp->gb_aware)
+ param->value = dev_priv->max_mob_pages * PAGE_SIZE / 2;
+ else
+ param->value = dev_priv->memory_size;
+ break;
+ case DRM_VMW_PARAM_3D_CAPS_SIZE:
+ param->value = vmw_devcaps_size(dev_priv, vmw_fp->gb_aware);
+ break;
+ case DRM_VMW_PARAM_MAX_MOB_MEMORY:
+ vmw_fp->gb_aware = true;
+ param->value = dev_priv->max_mob_pages * PAGE_SIZE;
+ break;
+ case DRM_VMW_PARAM_MAX_MOB_SIZE:
+ param->value = dev_priv->max_mob_size;
+ break;
+ case DRM_VMW_PARAM_SCREEN_TARGET:
+ param->value =
+ (dev_priv->active_display_unit == vmw_du_screen_target);
+ break;
+ case DRM_VMW_PARAM_DX:
+ param->value = has_sm4_context(dev_priv);
+ break;
+ case DRM_VMW_PARAM_SM4_1:
+ param->value = has_sm4_1_context(dev_priv);
+ break;
+ case DRM_VMW_PARAM_SM5:
+ param->value = has_sm5_context(dev_priv);
+ break;
+ case DRM_VMW_PARAM_GL43:
+ param->value = has_gl43_context(dev_priv);
+ break;
+ case DRM_VMW_PARAM_DEVICE_ID:
+ param->value = to_pci_dev(dev_priv->drm.dev)->device;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+
+int vmw_get_cap_3d_ioctl(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct drm_vmw_get_3d_cap_arg *arg =
+ (struct drm_vmw_get_3d_cap_arg *) data;
+ struct vmw_private *dev_priv = vmw_priv(dev);
+ uint32_t size;
+ void __user *buffer = (void __user *)((unsigned long)(arg->buffer));
+ void *bounce = NULL;
+ int ret;
+ struct vmw_fpriv *vmw_fp = vmw_fpriv(file_priv);
+
+ if (unlikely(arg->pad64 != 0 || arg->max_size == 0)) {
+ VMW_DEBUG_USER("Illegal GET_3D_CAP argument.\n");
+ return -EINVAL;
+ }
+
+ size = vmw_devcaps_size(dev_priv, vmw_fp->gb_aware);
+ if (unlikely(size == 0)) {
+ DRM_ERROR("Failed to figure out the devcaps size (no 3D).\n");
+ return -ENOMEM;
+ }
+
+ if (arg->max_size < size)
+ size = arg->max_size;
+
+ bounce = vzalloc(size);
+ if (unlikely(bounce == NULL)) {
+ DRM_ERROR("Failed to allocate bounce buffer for 3D caps.\n");
+ return -ENOMEM;
+ }
+
+ ret = vmw_devcaps_copy(dev_priv, vmw_fp->gb_aware, bounce, size);
+ if (unlikely (ret != 0))
+ goto out_err;
+
+ ret = copy_to_user(buffer, bounce, size);
+ if (ret)
+ ret = -EFAULT;
+out_err:
+ vfree(bounce);
+
+ if (unlikely(ret != 0))
+ DRM_ERROR("Failed to report 3D caps info.\n");
+
+ return ret;
+}
+
+int vmw_present_ioctl(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct ttm_object_file *tfile = vmw_fpriv(file_priv)->tfile;
+ struct vmw_private *dev_priv = vmw_priv(dev);
+ struct drm_vmw_present_arg *arg =
+ (struct drm_vmw_present_arg *)data;
+ struct vmw_surface *surface;
+ struct drm_vmw_rect __user *clips_ptr;
+ struct drm_vmw_rect *clips = NULL;
+ struct drm_framebuffer *fb;
+ struct vmw_framebuffer *vfb;
+ struct vmw_resource *res;
+ uint32_t num_clips;
+ int ret;
+
+ num_clips = arg->num_clips;
+ clips_ptr = (struct drm_vmw_rect __user *)(unsigned long)arg->clips_ptr;
+
+ if (unlikely(num_clips == 0))
+ return 0;
+
+ if (clips_ptr == NULL) {
+ VMW_DEBUG_USER("Variable clips_ptr must be specified.\n");
+ ret = -EINVAL;
+ goto out_clips;
+ }
+
+ clips = kcalloc(num_clips, sizeof(*clips), GFP_KERNEL);
+ if (clips == NULL) {
+ DRM_ERROR("Failed to allocate clip rect list.\n");
+ ret = -ENOMEM;
+ goto out_clips;
+ }
+
+ ret = copy_from_user(clips, clips_ptr, num_clips * sizeof(*clips));
+ if (ret) {
+ DRM_ERROR("Failed to copy clip rects from userspace.\n");
+ ret = -EFAULT;
+ goto out_no_copy;
+ }
+
+ drm_modeset_lock_all(dev);
+
+ fb = drm_framebuffer_lookup(dev, file_priv, arg->fb_id);
+ if (!fb) {
+ VMW_DEBUG_USER("Invalid framebuffer id.\n");
+ ret = -ENOENT;
+ goto out_no_fb;
+ }
+ vfb = vmw_framebuffer_to_vfb(fb);
+
+ ret = vmw_user_resource_lookup_handle(dev_priv, tfile, arg->sid,
+ user_surface_converter,
+ &res);
+ if (ret)
+ goto out_no_surface;
+
+ surface = vmw_res_to_srf(res);
+ ret = vmw_kms_present(dev_priv, file_priv,
+ vfb, surface, arg->sid,
+ arg->dest_x, arg->dest_y,
+ clips, num_clips);
+
+ /* vmw_user_surface_lookup takes one ref so does new_fb */
+ vmw_surface_unreference(&surface);
+
+out_no_surface:
+ drm_framebuffer_put(fb);
+out_no_fb:
+ drm_modeset_unlock_all(dev);
+out_no_copy:
+ kfree(clips);
+out_clips:
+ return ret;
+}
+
+int vmw_present_readback_ioctl(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct vmw_private *dev_priv = vmw_priv(dev);
+ struct drm_vmw_present_readback_arg *arg =
+ (struct drm_vmw_present_readback_arg *)data;
+ struct drm_vmw_fence_rep __user *user_fence_rep =
+ (struct drm_vmw_fence_rep __user *)
+ (unsigned long)arg->fence_rep;
+ struct drm_vmw_rect __user *clips_ptr;
+ struct drm_vmw_rect *clips = NULL;
+ struct drm_framebuffer *fb;
+ struct vmw_framebuffer *vfb;
+ uint32_t num_clips;
+ int ret;
+
+ num_clips = arg->num_clips;
+ clips_ptr = (struct drm_vmw_rect __user *)(unsigned long)arg->clips_ptr;
+
+ if (unlikely(num_clips == 0))
+ return 0;
+
+ if (clips_ptr == NULL) {
+ VMW_DEBUG_USER("Argument clips_ptr must be specified.\n");
+ ret = -EINVAL;
+ goto out_clips;
+ }
+
+ clips = kcalloc(num_clips, sizeof(*clips), GFP_KERNEL);
+ if (clips == NULL) {
+ DRM_ERROR("Failed to allocate clip rect list.\n");
+ ret = -ENOMEM;
+ goto out_clips;
+ }
+
+ ret = copy_from_user(clips, clips_ptr, num_clips * sizeof(*clips));
+ if (ret) {
+ DRM_ERROR("Failed to copy clip rects from userspace.\n");
+ ret = -EFAULT;
+ goto out_no_copy;
+ }
+
+ drm_modeset_lock_all(dev);
+
+ fb = drm_framebuffer_lookup(dev, file_priv, arg->fb_id);
+ if (!fb) {
+ VMW_DEBUG_USER("Invalid framebuffer id.\n");
+ ret = -ENOENT;
+ goto out_no_fb;
+ }
+
+ vfb = vmw_framebuffer_to_vfb(fb);
+ if (!vfb->bo) {
+ VMW_DEBUG_USER("Framebuffer not buffer backed.\n");
+ ret = -EINVAL;
+ goto out_no_ttm_lock;
+ }
+
+ ret = vmw_kms_readback(dev_priv, file_priv,
+ vfb, user_fence_rep,
+ clips, num_clips);
+
+out_no_ttm_lock:
+ drm_framebuffer_put(fb);
+out_no_fb:
+ drm_modeset_unlock_all(dev);
+out_no_copy:
+ kfree(clips);
+out_clips:
+ return ret;
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-08 12:56:34 +0000