Adding upstream version 6.6.15.upstream/6.6.15

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

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 0000000000..a1da5678c7
--- /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;
+}