1 files changed, 350 insertions, 18 deletions

diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_ioctl.c b/drivers/gpu/drm/vmwgfx/vmwgfx_ioctl.c
index 570d57775a5..37881ecf5d7 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_ioctl.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_ioctl.c
@@ -26,7 +26,13 @@
  **************************************************************************/
 
 #include "vmwgfx_drv.h"
-#include "vmwgfx_drm.h"
+#include <drm/vmwgfx_drm.h>
+#include "vmwgfx_kms.h"
+
+struct svga_3d_compat_cap {
+	SVGA3dCapsRecordHeader header;
+	SVGA3dCapPair pairs[SVGA3D_DEVCAP_MAX];
+};
 
 int vmw_getparam_ioctl(struct drm_device *dev, void *data,
 		       struct drm_file *file_priv)
@@ -34,6 +40,7 @@ int vmw_getparam_ioctl(struct drm_device *dev, void *data,
 	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:
@@ -45,9 +52,6 @@ int vmw_getparam_ioctl(struct drm_device *dev, void *data,
 	case DRM_VMW_PARAM_3D:
 		param->value = vmw_fifo_have_3d(dev_priv) ? 1 : 0;
 		break;
-	case DRM_VMW_PARAM_FIFO_OFFSET:
-		param->value = dev_priv->mmio_start;
-		break;
 	case DRM_VMW_PARAM_HW_CAPS:
 		param->value = dev_priv->capabilities;
 		break;
@@ -55,7 +59,51 @@ int vmw_getparam_ioctl(struct drm_device *dev, void *data,
 		param->value = dev_priv->fifo.capabilities;
 		break;
 	case DRM_VMW_PARAM_MAX_FB_SIZE:
-		param->value = dev_priv->vram_size;
+		param->value = dev_priv->prim_bb_mem;
+		break;
+	case DRM_VMW_PARAM_FIFO_HW_VERSION:
+	{
+		__le32 __iomem *fifo_mem = dev_priv->mmio_virt;
+		const struct vmw_fifo_state *fifo = &dev_priv->fifo;
+
+		if ((dev_priv->capabilities & SVGA_CAP_GBOBJECTS)) {
+			param->value = SVGA3D_HWVERSION_WS8_B1;
+			break;
+		}
+
+		param->value =
+			ioread32(fifo_mem +
+				 ((fifo->capabilities &
+				   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:
+		if ((dev_priv->capabilities & SVGA_CAP_GBOBJECTS) &&
+		    vmw_fp->gb_aware)
+			param->value = SVGA3D_DEVCAP_MAX * sizeof(uint32_t);
+		else if (dev_priv->capabilities & SVGA_CAP_GBOBJECTS)
+			param->value = sizeof(struct svga_3d_compat_cap) +
+				sizeof(uint32_t);
+		else
+			param->value = (SVGA_FIFO_3D_CAPS_LAST -
+					SVGA_FIFO_3D_CAPS + 1) *
+				sizeof(uint32_t);
+		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;
 	default:
 		DRM_ERROR("Illegal vmwgfx get param request: %d\n",
@@ -66,25 +114,309 @@ int vmw_getparam_ioctl(struct drm_device *dev, void *data,
 	return 0;
 }
 
-int vmw_fifo_debug_ioctl(struct drm_device *dev, void *data,
+static int vmw_fill_compat_cap(struct vmw_private *dev_priv, void *bounce,
+			       size_t size)
+{
+	struct svga_3d_compat_cap *compat_cap =
+		(struct svga_3d_compat_cap *) bounce;
+	unsigned int i;
+	size_t pair_offset = offsetof(struct svga_3d_compat_cap, pairs);
+	unsigned int max_size;
+
+	if (size < pair_offset)
+		return -EINVAL;
+
+	max_size = (size - pair_offset) / sizeof(SVGA3dCapPair);
+
+	if (max_size > SVGA3D_DEVCAP_MAX)
+		max_size = SVGA3D_DEVCAP_MAX;
+
+	compat_cap->header.length =
+		(pair_offset + max_size * sizeof(SVGA3dCapPair)) / sizeof(u32);
+	compat_cap->header.type = SVGA3DCAPS_RECORD_DEVCAPS;
+
+	mutex_lock(&dev_priv->hw_mutex);
+	for (i = 0; i < max_size; ++i) {
+		vmw_write(dev_priv, SVGA_REG_DEV_CAP, i);
+		compat_cap->pairs[i][0] = i;
+		compat_cap->pairs[i][1] = vmw_read(dev_priv, SVGA_REG_DEV_CAP);
+	}
+	mutex_unlock(&dev_priv->hw_mutex);
+
+	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);
-	struct vmw_fifo_state *fifo_state = &dev_priv->fifo;
-	struct drm_vmw_fifo_debug_arg *arg =
-	    (struct drm_vmw_fifo_debug_arg *)data;
-	__le32 __user *buffer = (__le32 __user *)
-	    (unsigned long)arg->debug_buffer;
+	uint32_t size;
+	__le32 __iomem *fifo_mem;
+	void __user *buffer = (void __user *)((unsigned long)(arg->buffer));
+	void *bounce;
+	int ret;
+	bool gb_objects = !!(dev_priv->capabilities & SVGA_CAP_GBOBJECTS);
+	struct vmw_fpriv *vmw_fp = vmw_fpriv(file_priv);
 
-	if (unlikely(fifo_state->last_buffer == NULL))
+	if (unlikely(arg->pad64 != 0)) {
+		DRM_ERROR("Illegal GET_3D_CAP argument.\n");
 		return -EINVAL;
+	}
+
+	if (gb_objects && vmw_fp->gb_aware)
+		size = SVGA3D_DEVCAP_MAX * sizeof(uint32_t);
+	else if (gb_objects)
+		size = sizeof(struct svga_3d_compat_cap) + sizeof(uint32_t);
+	else
+		size = (SVGA_FIFO_3D_CAPS_LAST - SVGA_FIFO_3D_CAPS + 1) *
+			sizeof(uint32_t);
+
+	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;
+	}
 
-	if (arg->debug_buffer_size < fifo_state->last_data_size) {
-		arg->used_size = arg->debug_buffer_size;
-		arg->did_not_fit = 1;
+	if (gb_objects && vmw_fp->gb_aware) {
+		int i, num;
+		uint32_t *bounce32 = (uint32_t *) bounce;
+
+		num = size / sizeof(uint32_t);
+		if (num > SVGA3D_DEVCAP_MAX)
+			num = SVGA3D_DEVCAP_MAX;
+
+		mutex_lock(&dev_priv->hw_mutex);
+		for (i = 0; i < num; ++i) {
+			vmw_write(dev_priv, SVGA_REG_DEV_CAP, i);
+			*bounce32++ = vmw_read(dev_priv, SVGA_REG_DEV_CAP);
+		}
+		mutex_unlock(&dev_priv->hw_mutex);
+	} else if (gb_objects) {
+		ret = vmw_fill_compat_cap(dev_priv, bounce, size);
+		if (unlikely(ret != 0))
+			goto out_err;
 	} else {
-		arg->used_size = fifo_state->last_data_size;
-		arg->did_not_fit = 0;
+		fifo_mem = dev_priv->mmio_virt;
+		memcpy_fromio(bounce, &fifo_mem[SVGA_FIFO_3D_CAPS], size);
+	}
+
+	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 *)(unsigned long)arg->clips_ptr;
+
+	if (unlikely(num_clips == 0))
+		return 0;
+
+	if (clips_ptr == NULL) {
+		DRM_ERROR("Variable clips_ptr must be specified.\n");
+		ret = -EINVAL;
+		goto out_clips;
 	}
-	return copy_to_user(buffer, fifo_state->last_buffer, arg->used_size);
+
+	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, arg->fb_id);
+	if (!fb) {
+		DRM_ERROR("Invalid framebuffer id.\n");
+		ret = -ENOENT;
+		goto out_no_fb;
+	}
+	vfb = vmw_framebuffer_to_vfb(fb);
+
+	ret = ttm_read_lock(&dev_priv->reservation_sem, true);
+	if (unlikely(ret != 0))
+		goto out_no_ttm_lock;
+
+	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:
+	ttm_read_unlock(&dev_priv->reservation_sem);
+out_no_ttm_lock:
+	drm_framebuffer_unreference(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 *)(unsigned long)arg->clips_ptr;
+
+	if (unlikely(num_clips == 0))
+		return 0;
+
+	if (clips_ptr == NULL) {
+		DRM_ERROR("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, arg->fb_id);
+	if (!fb) {
+		DRM_ERROR("Invalid framebuffer id.\n");
+		ret = -ENOENT;
+		goto out_no_fb;
+	}
+
+	vfb = vmw_framebuffer_to_vfb(fb);
+	if (!vfb->dmabuf) {
+		DRM_ERROR("Framebuffer not dmabuf backed.\n");
+		ret = -EINVAL;
+		goto out_no_ttm_lock;
+	}
+
+	ret = ttm_read_lock(&dev_priv->reservation_sem, true);
+	if (unlikely(ret != 0))
+		goto out_no_ttm_lock;
+
+	ret = vmw_kms_readback(dev_priv, file_priv,
+			       vfb, user_fence_rep,
+			       clips, num_clips);
+
+	ttm_read_unlock(&dev_priv->reservation_sem);
+out_no_ttm_lock:
+	drm_framebuffer_unreference(fb);
+out_no_fb:
+	drm_modeset_unlock_all(dev);
+out_no_copy:
+	kfree(clips);
+out_clips:
+	return ret;
+}
+
+
+/**
+ * vmw_fops_poll - wrapper around the drm_poll function
+ *
+ * @filp: See the linux fops poll documentation.
+ * @wait: See the linux fops poll documentation.
+ *
+ * Wrapper around the drm_poll function that makes sure the device is
+ * processing the fifo if drm_poll decides to wait.
+ */
+unsigned int vmw_fops_poll(struct file *filp, struct poll_table_struct *wait)
+{
+	struct drm_file *file_priv = filp->private_data;
+	struct vmw_private *dev_priv =
+		vmw_priv(file_priv->minor->dev);
+
+	vmw_fifo_ping_host(dev_priv, SVGA_SYNC_GENERIC);
+	return drm_poll(filp, wait);
+}
+
+
+/**
+ * vmw_fops_read - wrapper around the drm_read function
+ *
+ * @filp: See the linux fops read documentation.
+ * @buffer: See the linux fops read documentation.
+ * @count: See the linux fops read documentation.
+ * offset: See the linux fops read documentation.
+ *
+ * Wrapper around the drm_read function that makes sure the device is
+ * processing the fifo if drm_read decides to wait.
+ */
+ssize_t vmw_fops_read(struct file *filp, char __user *buffer,
+		      size_t count, loff_t *offset)
+{
+	struct drm_file *file_priv = filp->private_data;
+	struct vmw_private *dev_priv =
+		vmw_priv(file_priv->minor->dev);
+
+	vmw_fifo_ping_host(dev_priv, SVGA_SYNC_GENERIC);
+	return drm_read(filp, buffer, count, offset);
 }