diff --git a/drivers/gpu/drm/i915/gvt/Makefile b/drivers/gpu/drm/i915/gvt/Makefile
index 7100240a4a81a4d1b4f4e9c56eacf2441b6f78f3..cae06c1dcdcd9bad899b2c1fc5e1affcbc8873b9 100644
--- a/drivers/gpu/drm/i915/gvt/Makefile
+++ b/drivers/gpu/drm/i915/gvt/Makefile
@@ -1,7 +1,8 @@
GVT_DIR := gvt
GVT_SOURCE := gvt.o aperture_gm.o handlers.o vgpu.o trace_points.o firmware.o \
interrupt.o gtt.o cfg_space.o opregion.o mmio.o display.o edid.o \
- execlist.o scheduler.o sched_policy.o render.o cmd_parser.o debugfs.o
+ execlist.o scheduler.o sched_policy.o render.o cmd_parser.o debugfs.o \
+ fb_decoder.o dmabuf.o
ccflags-y += -I$(src) -I$(src)/$(GVT_DIR)
i915-y += $(addprefix $(GVT_DIR)/, $(GVT_SOURCE))
diff --git a/drivers/gpu/drm/i915/gvt/cfg_space.c b/drivers/gpu/drm/i915/gvt/cfg_space.c
index 4ce2e6bd06803138a114ffde419411cd27ca8158..97bfc00d2a8204e46244d477edc57c1483e3f767 100644
--- a/drivers/gpu/drm/i915/gvt/cfg_space.c
+++ b/drivers/gpu/drm/i915/gvt/cfg_space.c
@@ -335,7 +335,8 @@ int intel_vgpu_emulate_cfg_write(struct intel_vgpu *vgpu, unsigned int offset,
case INTEL_GVT_PCI_OPREGION:
if (WARN_ON(!IS_ALIGNED(offset, 4)))
return -EINVAL;
- ret = intel_vgpu_init_opregion(vgpu, *(u32 *)p_data);
+ ret = intel_vgpu_opregion_base_write_handler(vgpu,
+ *(u32 *)p_data);
if (ret)
return ret;
diff --git a/drivers/gpu/drm/i915/gvt/display.c b/drivers/gpu/drm/i915/gvt/display.c
index 3c318439a65967366e106b9542ffa757bb540c07..fb7fdbacfe64e1290aa76a18741a78012949e7b1 100644
--- a/drivers/gpu/drm/i915/gvt/display.c
+++ b/drivers/gpu/drm/i915/gvt/display.c
@@ -67,7 +67,7 @@ static int edp_pipe_is_enabled(struct intel_vgpu *vgpu)
return 1;
}
-static int pipe_is_enabled(struct intel_vgpu *vgpu, int pipe)
+int pipe_is_enabled(struct intel_vgpu *vgpu, int pipe)
{
struct drm_i915_private *dev_priv = vgpu->gvt->dev_priv;
diff --git a/drivers/gpu/drm/i915/gvt/display.h b/drivers/gpu/drm/i915/gvt/display.h
index d73de22102e2b77f1c4c166ee0688b86d2e29391..b46b86892d58f1a39199369ee044d603e3d77eb7 100644
--- a/drivers/gpu/drm/i915/gvt/display.h
+++ b/drivers/gpu/drm/i915/gvt/display.h
@@ -179,4 +179,6 @@ int intel_vgpu_init_display(struct intel_vgpu *vgpu, u64 resolution);
void intel_vgpu_reset_display(struct intel_vgpu *vgpu);
void intel_vgpu_clean_display(struct intel_vgpu *vgpu);
+int pipe_is_enabled(struct intel_vgpu *vgpu, int pipe);
+
#endif
diff --git a/drivers/gpu/drm/i915/gvt/dmabuf.c b/drivers/gpu/drm/i915/gvt/dmabuf.c
new file mode 100644
index 0000000000000000000000000000000000000000..9c40a67ecdd634edd3013cbacc6e7490cb052d4c
--- /dev/null
+++ b/drivers/gpu/drm/i915/gvt/dmabuf.c
@@ -0,0 +1,538 @@
+/*
+ * Copyright 2017 Intel Corporation. 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, 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 (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 NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS 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:
+ * Zhiyuan Lv <zhiyuan.lv@intel.com>
+ *
+ * Contributors:
+ * Xiaoguang Chen
+ * Tina Zhang <tina.zhang@intel.com>
+ */
+
+#include <linux/dma-buf.h>
+#include <drm/drmP.h>
+#include <linux/vfio.h>
+
+#include "i915_drv.h"
+#include "gvt.h"
+
+#define GEN8_DECODE_PTE(pte) (pte & GENMASK_ULL(63, 12))
+
+static int vgpu_gem_get_pages(
+ struct drm_i915_gem_object *obj)
+{
+ struct drm_i915_private *dev_priv = to_i915(obj->base.dev);
+ struct sg_table *st;
+ struct scatterlist *sg;
+ int i, ret;
+ gen8_pte_t __iomem *gtt_entries;
+ struct intel_vgpu_fb_info *fb_info;
+
+ fb_info = (struct intel_vgpu_fb_info *)obj->gvt_info;
+ if (WARN_ON(!fb_info))
+ return -ENODEV;
+
+ st = kmalloc(sizeof(*st), GFP_KERNEL);
+ if (unlikely(!st))
+ return -ENOMEM;
+
+ ret = sg_alloc_table(st, fb_info->size, GFP_KERNEL);
+ if (ret) {
+ kfree(st);
+ return ret;
+ }
+ gtt_entries = (gen8_pte_t __iomem *)dev_priv->ggtt.gsm +
+ (fb_info->start >> PAGE_SHIFT);
+ for_each_sg(st->sgl, sg, fb_info->size, i) {
+ sg->offset = 0;
+ sg->length = PAGE_SIZE;
+ sg_dma_address(sg) =
+ GEN8_DECODE_PTE(readq(>t_entries[i]));
+ sg_dma_len(sg) = PAGE_SIZE;
+ }
+
+ __i915_gem_object_set_pages(obj, st, PAGE_SIZE);
+
+ return 0;
+}
+
+static void vgpu_gem_put_pages(struct drm_i915_gem_object *obj,
+ struct sg_table *pages)
+{
+ sg_free_table(pages);
+ kfree(pages);
+}
+
+static void dmabuf_gem_object_free(struct kref *kref)
+{
+ struct intel_vgpu_dmabuf_obj *obj =
+ container_of(kref, struct intel_vgpu_dmabuf_obj, kref);
+ struct intel_vgpu *vgpu = obj->vgpu;
+ struct list_head *pos;
+ struct intel_vgpu_dmabuf_obj *dmabuf_obj;
+
+ if (vgpu && vgpu->active && !list_empty(&vgpu->dmabuf_obj_list_head)) {
+ list_for_each(pos, &vgpu->dmabuf_obj_list_head) {
+ dmabuf_obj = container_of(pos,
+ struct intel_vgpu_dmabuf_obj, list);
+ if (dmabuf_obj == obj) {
+ intel_gvt_hypervisor_put_vfio_device(vgpu);
+ idr_remove(&vgpu->object_idr,
+ dmabuf_obj->dmabuf_id);
+ kfree(dmabuf_obj->info);
+ kfree(dmabuf_obj);
+ list_del(pos);
+ break;
+ }
+ }
+ } else {
+ /* Free the orphan dmabuf_objs here */
+ kfree(obj->info);
+ kfree(obj);
+ }
+}
+
+
+static inline void dmabuf_obj_get(struct intel_vgpu_dmabuf_obj *obj)
+{
+ kref_get(&obj->kref);
+}
+
+static inline void dmabuf_obj_put(struct intel_vgpu_dmabuf_obj *obj)
+{
+ kref_put(&obj->kref, dmabuf_gem_object_free);
+}
+
+static void vgpu_gem_release(struct drm_i915_gem_object *gem_obj)
+{
+
+ struct intel_vgpu_fb_info *fb_info = gem_obj->gvt_info;
+ struct intel_vgpu_dmabuf_obj *obj = fb_info->obj;
+ struct intel_vgpu *vgpu = obj->vgpu;
+
+ if (vgpu) {
+ mutex_lock(&vgpu->dmabuf_lock);
+ gem_obj->base.dma_buf = NULL;
+ dmabuf_obj_put(obj);
+ mutex_unlock(&vgpu->dmabuf_lock);
+ } else {
+ /* vgpu is NULL, as it has been removed already */
+ gem_obj->base.dma_buf = NULL;
+ dmabuf_obj_put(obj);
+ }
+}
+
+static const struct drm_i915_gem_object_ops intel_vgpu_gem_ops = {
+ .flags = I915_GEM_OBJECT_IS_PROXY,
+ .get_pages = vgpu_gem_get_pages,
+ .put_pages = vgpu_gem_put_pages,
+ .release = vgpu_gem_release,
+};
+
+static struct drm_i915_gem_object *vgpu_create_gem(struct drm_device *dev,
+ struct intel_vgpu_fb_info *info)
+{
+ struct drm_i915_private *dev_priv = to_i915(dev);
+ struct drm_i915_gem_object *obj;
+
+ obj = i915_gem_object_alloc(dev_priv);
+ if (obj == NULL)
+ return NULL;
+
+ drm_gem_private_object_init(dev, &obj->base,
+ info->size << PAGE_SHIFT);
+ i915_gem_object_init(obj, &intel_vgpu_gem_ops);
+
+ obj->base.read_domains = I915_GEM_DOMAIN_GTT;
+ obj->base.write_domain = 0;
+ if (IS_SKYLAKE(dev_priv) || IS_KABYLAKE(dev_priv)) {
+ unsigned int tiling_mode = 0;
+ unsigned int stride = 0;
+
+ switch (info->drm_format_mod << 10) {
+ case PLANE_CTL_TILED_LINEAR:
+ tiling_mode = I915_TILING_NONE;
+ break;
+ case PLANE_CTL_TILED_X:
+ tiling_mode = I915_TILING_X;
+ stride = info->stride;
+ break;
+ case PLANE_CTL_TILED_Y:
+ tiling_mode = I915_TILING_Y;
+ stride = info->stride;
+ break;
+ default:
+ gvt_dbg_core("not supported tiling mode\n");
+ }
+ obj->tiling_and_stride = tiling_mode | stride;
+ } else {
+ obj->tiling_and_stride = info->drm_format_mod ?
+ I915_TILING_X : 0;
+ }
+
+ return obj;
+}
+
+static int vgpu_get_plane_info(struct drm_device *dev,
+ struct intel_vgpu *vgpu,
+ struct intel_vgpu_fb_info *info,
+ int plane_id)
+{
+ struct drm_i915_private *dev_priv = to_i915(dev);
+ struct intel_vgpu_primary_plane_format p;
+ struct intel_vgpu_cursor_plane_format c;
+ int ret;
+
+ if (plane_id == DRM_PLANE_TYPE_PRIMARY) {
+ ret = intel_vgpu_decode_primary_plane(vgpu, &p);
+ if (ret)
+ return ret;
+ info->start = p.base;
+ info->start_gpa = p.base_gpa;
+ info->width = p.width;
+ info->height = p.height;
+ info->stride = p.stride;
+ info->drm_format = p.drm_format;
+ info->drm_format_mod = p.tiled;
+ info->size = (((p.stride * p.height * p.bpp) / 8) +
+ (PAGE_SIZE - 1)) >> PAGE_SHIFT;
+ } else if (plane_id == DRM_PLANE_TYPE_CURSOR) {
+ ret = intel_vgpu_decode_cursor_plane(vgpu, &c);
+ if (ret)
+ return ret;
+ info->start = c.base;
+ info->start_gpa = c.base_gpa;
+ info->width = c.width;
+ info->height = c.height;
+ info->stride = c.width * (c.bpp / 8);
+ info->drm_format = c.drm_format;
+ info->drm_format_mod = 0;
+ info->x_pos = c.x_pos;
+ info->y_pos = c.y_pos;
+
+ /* The invalid cursor hotspot value is delivered to host
+ * until we find a way to get the cursor hotspot info of
+ * guest OS.
+ */
+ info->x_hot = UINT_MAX;
+ info->y_hot = UINT_MAX;
+ info->size = (((info->stride * c.height * c.bpp) / 8)
+ + (PAGE_SIZE - 1)) >> PAGE_SHIFT;
+ } else {
+ gvt_vgpu_err("invalid plane id:%d\n", plane_id);
+ return -EINVAL;
+ }
+
+ if (info->size == 0) {
+ gvt_vgpu_err("fb size is zero\n");
+ return -EINVAL;
+ }
+
+ if (info->start & (PAGE_SIZE - 1)) {
+ gvt_vgpu_err("Not aligned fb address:0x%llx\n", info->start);
+ return -EFAULT;
+ }
+ if (((info->start >> PAGE_SHIFT) + info->size) >
+ ggtt_total_entries(&dev_priv->ggtt)) {
+ gvt_vgpu_err("Invalid GTT offset or size\n");
+ return -EFAULT;
+ }
+
+ if (!intel_gvt_ggtt_validate_range(vgpu, info->start, info->size)) {
+ gvt_vgpu_err("invalid gma addr\n");
+ return -EFAULT;
+ }
+
+ return 0;
+}
+
+static struct intel_vgpu_dmabuf_obj *
+pick_dmabuf_by_info(struct intel_vgpu *vgpu,
+ struct intel_vgpu_fb_info *latest_info)
+{
+ struct list_head *pos;
+ struct intel_vgpu_fb_info *fb_info;
+ struct intel_vgpu_dmabuf_obj *dmabuf_obj = NULL;
+ struct intel_vgpu_dmabuf_obj *ret = NULL;
+
+ list_for_each(pos, &vgpu->dmabuf_obj_list_head) {
+ dmabuf_obj = container_of(pos, struct intel_vgpu_dmabuf_obj,
+ list);
+ if ((dmabuf_obj == NULL) ||
+ (dmabuf_obj->info == NULL))
+ continue;
+
+ fb_info = (struct intel_vgpu_fb_info *)dmabuf_obj->info;
+ if ((fb_info->start == latest_info->start) &&
+ (fb_info->start_gpa == latest_info->start_gpa) &&
+ (fb_info->size == latest_info->size) &&
+ (fb_info->drm_format_mod == latest_info->drm_format_mod) &&
+ (fb_info->drm_format == latest_info->drm_format) &&
+ (fb_info->width == latest_info->width) &&
+ (fb_info->height == latest_info->height)) {
+ ret = dmabuf_obj;
+ break;
+ }
+ }
+
+ return ret;
+}
+
+static struct intel_vgpu_dmabuf_obj *
+pick_dmabuf_by_num(struct intel_vgpu *vgpu, u32 id)
+{
+ struct list_head *pos;
+ struct intel_vgpu_dmabuf_obj *dmabuf_obj = NULL;
+ struct intel_vgpu_dmabuf_obj *ret = NULL;
+
+ list_for_each(pos, &vgpu->dmabuf_obj_list_head) {
+ dmabuf_obj = container_of(pos, struct intel_vgpu_dmabuf_obj,
+ list);
+ if (!dmabuf_obj)
+ continue;
+
+ if (dmabuf_obj->dmabuf_id == id) {
+ ret = dmabuf_obj;
+ break;
+ }
+ }
+
+ return ret;
+}
+
+static void update_fb_info(struct vfio_device_gfx_plane_info *gvt_dmabuf,
+ struct intel_vgpu_fb_info *fb_info)
+{
+ gvt_dmabuf->drm_format = fb_info->drm_format;
+ gvt_dmabuf->width = fb_info->width;
+ gvt_dmabuf->height = fb_info->height;
+ gvt_dmabuf->stride = fb_info->stride;
+ gvt_dmabuf->size = fb_info->size;
+ gvt_dmabuf->x_pos = fb_info->x_pos;
+ gvt_dmabuf->y_pos = fb_info->y_pos;
+ gvt_dmabuf->x_hot = fb_info->x_hot;
+ gvt_dmabuf->y_hot = fb_info->y_hot;
+}
+
+int intel_vgpu_query_plane(struct intel_vgpu *vgpu, void *args)
+{
+ struct drm_device *dev = &vgpu->gvt->dev_priv->drm;
+ struct vfio_device_gfx_plane_info *gfx_plane_info = args;
+ struct intel_vgpu_dmabuf_obj *dmabuf_obj;
+ struct intel_vgpu_fb_info fb_info;
+ int ret = 0;
+
+ if (gfx_plane_info->flags == (VFIO_GFX_PLANE_TYPE_DMABUF |
+ VFIO_GFX_PLANE_TYPE_PROBE))
+ return ret;
+ else if ((gfx_plane_info->flags & ~VFIO_GFX_PLANE_TYPE_DMABUF) ||
+ (!gfx_plane_info->flags))
+ return -EINVAL;
+
+ ret = vgpu_get_plane_info(dev, vgpu, &fb_info,
+ gfx_plane_info->drm_plane_type);
+ if (ret != 0)
+ goto out;
+
+ mutex_lock(&vgpu->dmabuf_lock);
+ /* If exists, pick up the exposed dmabuf_obj */
+ dmabuf_obj = pick_dmabuf_by_info(vgpu, &fb_info);
+ if (dmabuf_obj) {
+ update_fb_info(gfx_plane_info, &fb_info);
+ gfx_plane_info->dmabuf_id = dmabuf_obj->dmabuf_id;
+
+ /* This buffer may be released between query_plane ioctl and
+ * get_dmabuf ioctl. Add the refcount to make sure it won't
+ * be released between the two ioctls.
+ */
+ if (!dmabuf_obj->initref) {
+ dmabuf_obj->initref = true;
+ dmabuf_obj_get(dmabuf_obj);
+ }
+ ret = 0;
+ gvt_dbg_dpy("vgpu%d: re-use dmabuf_obj ref %d, id %d\n",
+ vgpu->id, kref_read(&dmabuf_obj->kref),
+ gfx_plane_info->dmabuf_id);
+ mutex_unlock(&vgpu->dmabuf_lock);
+ goto out;
+ }
+
+ mutex_unlock(&vgpu->dmabuf_lock);
+
+ /* Need to allocate a new one*/
+ dmabuf_obj = kmalloc(sizeof(struct intel_vgpu_dmabuf_obj), GFP_KERNEL);
+ if (unlikely(!dmabuf_obj)) {
+ gvt_vgpu_err("alloc dmabuf_obj failed\n");
+ ret = -ENOMEM;
+ goto out;
+ }
+
+ dmabuf_obj->info = kmalloc(sizeof(struct intel_vgpu_fb_info),
+ GFP_KERNEL);
+ if (unlikely(!dmabuf_obj->info)) {
+ gvt_vgpu_err("allocate intel vgpu fb info failed\n");
+ ret = -ENOMEM;
+ goto out_free_dmabuf;
+ }
+ memcpy(dmabuf_obj->info, &fb_info, sizeof(struct intel_vgpu_fb_info));
+
+ ((struct intel_vgpu_fb_info *)dmabuf_obj->info)->obj = dmabuf_obj;
+
+ dmabuf_obj->vgpu = vgpu;
+
+ ret = idr_alloc(&vgpu->object_idr, dmabuf_obj, 1, 0, GFP_NOWAIT);
+ if (ret < 0)
+ goto out_free_info;
+ gfx_plane_info->dmabuf_id = ret;
+ dmabuf_obj->dmabuf_id = ret;
+
+ dmabuf_obj->initref = true;
+
+ kref_init(&dmabuf_obj->kref);
+
+ mutex_lock(&vgpu->dmabuf_lock);
+ if (intel_gvt_hypervisor_get_vfio_device(vgpu)) {
+ gvt_vgpu_err("get vfio device failed\n");
+ mutex_unlock(&vgpu->dmabuf_lock);
+ goto out_free_info;
+ }
+ mutex_unlock(&vgpu->dmabuf_lock);
+
+ update_fb_info(gfx_plane_info, &fb_info);
+
+ INIT_LIST_HEAD(&dmabuf_obj->list);
+ mutex_lock(&vgpu->dmabuf_lock);
+ list_add_tail(&dmabuf_obj->list, &vgpu->dmabuf_obj_list_head);
+ mutex_unlock(&vgpu->dmabuf_lock);
+
+ gvt_dbg_dpy("vgpu%d: %s new dmabuf_obj ref %d, id %d\n", vgpu->id,
+ __func__, kref_read(&dmabuf_obj->kref), ret);
+
+ return 0;
+
+out_free_info:
+ kfree(dmabuf_obj->info);
+out_free_dmabuf:
+ kfree(dmabuf_obj);
+out:
+ /* ENODEV means plane isn't ready, which might be a normal case. */
+ return (ret == -ENODEV) ? 0 : ret;
+}
+
+/* To associate an exposed dmabuf with the dmabuf_obj */
+int intel_vgpu_get_dmabuf(struct intel_vgpu *vgpu, unsigned int dmabuf_id)
+{
+ struct drm_device *dev = &vgpu->gvt->dev_priv->drm;
+ struct intel_vgpu_dmabuf_obj *dmabuf_obj;
+ struct drm_i915_gem_object *obj;
+ struct dma_buf *dmabuf;
+ int dmabuf_fd;
+ int ret = 0;
+
+ mutex_lock(&vgpu->dmabuf_lock);
+
+ dmabuf_obj = pick_dmabuf_by_num(vgpu, dmabuf_id);
+ if (dmabuf_obj == NULL) {
+ gvt_vgpu_err("invalid dmabuf id:%d\n", dmabuf_id);
+ ret = -EINVAL;
+ goto out;
+ }
+
+ obj = vgpu_create_gem(dev, dmabuf_obj->info);
+ if (obj == NULL) {
+ gvt_vgpu_err("create gvt gem obj failed:%d\n", vgpu->id);
+ ret = -ENOMEM;
+ goto out;
+ }
+
+ obj->gvt_info = dmabuf_obj->info;
+
+ dmabuf = i915_gem_prime_export(dev, &obj->base, DRM_CLOEXEC | DRM_RDWR);
+ if (IS_ERR(dmabuf)) {
+ gvt_vgpu_err("export dma-buf failed\n");
+ ret = PTR_ERR(dmabuf);
+ goto out_free_gem;
+ }
+ obj->base.dma_buf = dmabuf;
+
+ i915_gem_object_put(obj);
+
+ ret = dma_buf_fd(dmabuf, DRM_CLOEXEC | DRM_RDWR);
+ if (ret < 0) {
+ gvt_vgpu_err("create dma-buf fd failed ret:%d\n", ret);
+ goto out_free_dmabuf;
+ }
+ dmabuf_fd = ret;
+
+ dmabuf_obj_get(dmabuf_obj);
+
+ if (dmabuf_obj->initref) {
+ dmabuf_obj->initref = false;
+ dmabuf_obj_put(dmabuf_obj);
+ }
+
+ mutex_unlock(&vgpu->dmabuf_lock);
+
+ gvt_dbg_dpy("vgpu%d: dmabuf:%d, dmabuf ref %d, fd:%d\n"
+ " file count: %ld, GEM ref: %d\n",
+ vgpu->id, dmabuf_obj->dmabuf_id,
+ kref_read(&dmabuf_obj->kref),
+ dmabuf_fd,
+ file_count(dmabuf->file),
+ kref_read(&obj->base.refcount));
+
+ return dmabuf_fd;
+
+out_free_dmabuf:
+ dma_buf_put(dmabuf);
+out_free_gem:
+ i915_gem_object_put(obj);
+out:
+ mutex_unlock(&vgpu->dmabuf_lock);
+ return ret;
+}
+
+void intel_vgpu_dmabuf_cleanup(struct intel_vgpu *vgpu)
+{
+ struct list_head *pos, *n;
+ struct intel_vgpu_dmabuf_obj *dmabuf_obj;
+
+ mutex_lock(&vgpu->dmabuf_lock);
+ list_for_each_safe(pos, n, &vgpu->dmabuf_obj_list_head) {
+ dmabuf_obj = container_of(pos, struct intel_vgpu_dmabuf_obj,
+ list);
+ if (dmabuf_obj->initref) {
+ dmabuf_obj->initref = false;
+ dmabuf_obj_put(dmabuf_obj);
+ }
+
+ idr_remove(&vgpu->object_idr, dmabuf_obj->dmabuf_id);
+
+ if (dmabuf_obj->vgpu)
+ intel_gvt_hypervisor_put_vfio_device(vgpu);
+
+ list_del(pos);
+ dmabuf_obj->vgpu = NULL;
+
+ }
+ mutex_unlock(&vgpu->dmabuf_lock);
+}
diff --git a/drivers/gpu/drm/i915/gvt/dmabuf.h b/drivers/gpu/drm/i915/gvt/dmabuf.h
new file mode 100644
index 0000000000000000000000000000000000000000..5f8f03fb1d1b9b88abe41f12d06129e0d87616a6
--- /dev/null
+++ b/drivers/gpu/drm/i915/gvt/dmabuf.h
@@ -0,0 +1,67 @@
+/*
+ * Copyright(c) 2017 Intel Corporation. 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, 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 (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 NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS 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:
+ * Zhiyuan Lv <zhiyuan.lv@intel.com>
+ *
+ * Contributors:
+ * Xiaoguang Chen
+ * Tina Zhang <tina.zhang@intel.com>
+ */
+
+#ifndef _GVT_DMABUF_H_
+#define _GVT_DMABUF_H_
+#include <linux/vfio.h>
+
+struct intel_vgpu_fb_info {
+ __u64 start;
+ __u64 start_gpa;
+ __u64 drm_format_mod;
+ __u32 drm_format; /* drm format of plane */
+ __u32 width; /* width of plane */
+ __u32 height; /* height of plane */
+ __u32 stride; /* stride of plane */
+ __u32 size; /* size of plane in bytes, align on page */
+ __u32 x_pos; /* horizontal position of cursor plane */
+ __u32 y_pos; /* vertical position of cursor plane */
+ __u32 x_hot; /* horizontal position of cursor hotspot */
+ __u32 y_hot; /* vertical position of cursor hotspot */
+ struct intel_vgpu_dmabuf_obj *obj;
+};
+
+/**
+ * struct intel_vgpu_dmabuf_obj- Intel vGPU device buffer object
+ */
+struct intel_vgpu_dmabuf_obj {
+ struct intel_vgpu *vgpu;
+ struct intel_vgpu_fb_info *info;
+ __u32 dmabuf_id;
+ struct kref kref;
+ bool initref;
+ struct list_head list;
+};
+
+int intel_vgpu_query_plane(struct intel_vgpu *vgpu, void *args);
+int intel_vgpu_get_dmabuf(struct intel_vgpu *vgpu, unsigned int dmabuf_id);
+void intel_vgpu_dmabuf_cleanup(struct intel_vgpu *vgpu);
+
+#endif
diff --git a/drivers/gpu/drm/i915/gvt/execlist.c b/drivers/gpu/drm/i915/gvt/execlist.c
index c9fa0fb488d3a549e3e2293539dde2d70ae16555..769c1c24ae7598e9299c1301a93e7fce284de29f 100644
--- a/drivers/gpu/drm/i915/gvt/execlist.c
+++ b/drivers/gpu/drm/i915/gvt/execlist.c
@@ -458,7 +458,7 @@ static int submit_context(struct intel_vgpu *vgpu, int ring_id,
gvt_dbg_el("workload %p emulate schedule_in %d\n", workload,
emulate_schedule_in);
- queue_workload(workload);
+ intel_vgpu_queue_workload(workload);
return 0;
}
@@ -528,7 +528,7 @@ static void init_vgpu_execlist(struct intel_vgpu *vgpu, int ring_id)
vgpu_vreg(vgpu, ctx_status_ptr_reg) = ctx_status_ptr.dw;
}
-void clean_execlist(struct intel_vgpu *vgpu)
+static void clean_execlist(struct intel_vgpu *vgpu)
{
enum intel_engine_id i;
struct intel_engine_cs *engine;
@@ -542,7 +542,7 @@ void clean_execlist(struct intel_vgpu *vgpu)
}
}
-void reset_execlist(struct intel_vgpu *vgpu,
+static void reset_execlist(struct intel_vgpu *vgpu,
unsigned long engine_mask)
{
struct drm_i915_private *dev_priv = vgpu->gvt->dev_priv;
@@ -553,7 +553,7 @@ void reset_execlist(struct intel_vgpu *vgpu,
init_vgpu_execlist(vgpu, engine->id);
}
-int init_execlist(struct intel_vgpu *vgpu)
+static int init_execlist(struct intel_vgpu *vgpu)
{
reset_execlist(vgpu, ALL_ENGINES);
return 0;
diff --git a/drivers/gpu/drm/i915/gvt/fb_decoder.c b/drivers/gpu/drm/i915/gvt/fb_decoder.c
new file mode 100644
index 0000000000000000000000000000000000000000..72f42176f35cbffcdb3b192d370008506d3279b1
--- /dev/null
+++ b/drivers/gpu/drm/i915/gvt/fb_decoder.c
@@ -0,0 +1,508 @@
+/*
+ * Copyright(c) 2011-2016 Intel Corporation. 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, 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 (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 NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS 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:
+ * Kevin Tian <kevin.tian@intel.com>
+ *
+ * Contributors:
+ * Bing Niu <bing.niu@intel.com>
+ * Xu Han <xu.han@intel.com>
+ * Ping Gao <ping.a.gao@intel.com>
+ * Xiaoguang Chen <xiaoguang.chen@intel.com>
+ * Yang Liu <yang2.liu@intel.com>
+ * Tina Zhang <tina.zhang@intel.com>
+ *
+ */
+
+#include <uapi/drm/drm_fourcc.h>
+#include "i915_drv.h"
+#include "gvt.h"
+
+#define PRIMARY_FORMAT_NUM 16
+struct pixel_format {
+ int drm_format; /* Pixel format in DRM definition */
+ int bpp; /* Bits per pixel, 0 indicates invalid */
+ char *desc; /* The description */
+};
+
+static struct pixel_format bdw_pixel_formats[] = {
+ {DRM_FORMAT_C8, 8, "8-bit Indexed"},
+ {DRM_FORMAT_RGB565, 16, "16-bit BGRX (5:6:5 MSB-R:G:B)"},
+ {DRM_FORMAT_XRGB8888, 32, "32-bit BGRX (8:8:8:8 MSB-X:R:G:B)"},
+ {DRM_FORMAT_XBGR2101010, 32, "32-bit RGBX (2:10:10:10 MSB-X:B:G:R)"},
+
+ {DRM_FORMAT_XRGB2101010, 32, "32-bit BGRX (2:10:10:10 MSB-X:R:G:B)"},
+ {DRM_FORMAT_XBGR8888, 32, "32-bit RGBX (8:8:8:8 MSB-X:B:G:R)"},
+
+ /* non-supported format has bpp default to 0 */
+ {0, 0, NULL},
+};
+
+static struct pixel_format skl_pixel_formats[] = {
+ {DRM_FORMAT_YUYV, 16, "16-bit packed YUYV (8:8:8:8 MSB-V:Y2:U:Y1)"},
+ {DRM_FORMAT_UYVY, 16, "16-bit packed UYVY (8:8:8:8 MSB-Y2:V:Y1:U)"},
+ {DRM_FORMAT_YVYU, 16, "16-bit packed YVYU (8:8:8:8 MSB-U:Y2:V:Y1)"},
+ {DRM_FORMAT_VYUY, 16, "16-bit packed VYUY (8:8:8:8 MSB-Y2:U:Y1:V)"},
+
+ {DRM_FORMAT_C8, 8, "8-bit Indexed"},
+ {DRM_FORMAT_RGB565, 16, "16-bit BGRX (5:6:5 MSB-R:G:B)"},
+ {DRM_FORMAT_ABGR8888, 32, "32-bit RGBA (8:8:8:8 MSB-A:B:G:R)"},
+ {DRM_FORMAT_XBGR8888, 32, "32-bit RGBX (8:8:8:8 MSB-X:B:G:R)"},
+
+ {DRM_FORMAT_ARGB8888, 32, "32-bit BGRA (8:8:8:8 MSB-A:R:G:B)"},
+ {DRM_FORMAT_XRGB8888, 32, "32-bit BGRX (8:8:8:8 MSB-X:R:G:B)"},
+ {DRM_FORMAT_XBGR2101010, 32, "32-bit RGBX (2:10:10:10 MSB-X:B:G:R)"},
+ {DRM_FORMAT_XRGB2101010, 32, "32-bit BGRX (2:10:10:10 MSB-X:R:G:B)"},
+
+ /* non-supported format has bpp default to 0 */
+ {0, 0, NULL},
+};
+
+static int bdw_format_to_drm(int format)
+{
+ int bdw_pixel_formats_index = 6;
+
+ switch (format) {
+ case DISPPLANE_8BPP:
+ bdw_pixel_formats_index = 0;
+ break;
+ case DISPPLANE_BGRX565:
+ bdw_pixel_formats_index = 1;
+ break;
+ case DISPPLANE_BGRX888:
+ bdw_pixel_formats_index = 2;
+ break;
+ case DISPPLANE_RGBX101010:
+ bdw_pixel_formats_index = 3;
+ break;
+ case DISPPLANE_BGRX101010:
+ bdw_pixel_formats_index = 4;
+ break;
+ case DISPPLANE_RGBX888:
+ bdw_pixel_formats_index = 5;
+ break;
+
+ default:
+ break;
+ }
+
+ return bdw_pixel_formats_index;
+}
+
+static int skl_format_to_drm(int format, bool rgb_order, bool alpha,
+ int yuv_order)
+{
+ int skl_pixel_formats_index = 12;
+
+ switch (format) {
+ case PLANE_CTL_FORMAT_INDEXED:
+ skl_pixel_formats_index = 4;
+ break;
+ case PLANE_CTL_FORMAT_RGB_565:
+ skl_pixel_formats_index = 5;
+ break;
+ case PLANE_CTL_FORMAT_XRGB_8888:
+ if (rgb_order)
+ skl_pixel_formats_index = alpha ? 6 : 7;
+ else
+ skl_pixel_formats_index = alpha ? 8 : 9;
+ break;
+ case PLANE_CTL_FORMAT_XRGB_2101010:
+ skl_pixel_formats_index = rgb_order ? 10 : 11;
+ break;
+ case PLANE_CTL_FORMAT_YUV422:
+ skl_pixel_formats_index = yuv_order >> 16;
+ if (skl_pixel_formats_index > 3)
+ return -EINVAL;
+ break;
+
+ default:
+ break;
+ }
+
+ return skl_pixel_formats_index;
+}
+
+static u32 intel_vgpu_get_stride(struct intel_vgpu *vgpu, int pipe,
+ u32 tiled, int stride_mask, int bpp)
+{
+ struct drm_i915_private *dev_priv = vgpu->gvt->dev_priv;
+
+ u32 stride_reg = vgpu_vreg(vgpu, DSPSTRIDE(pipe)) & stride_mask;
+ u32 stride = stride_reg;
+
+ if (IS_SKYLAKE(dev_priv) || IS_KABYLAKE(dev_priv)) {
+ switch (tiled) {
+ case PLANE_CTL_TILED_LINEAR:
+ stride = stride_reg * 64;
+ break;
+ case PLANE_CTL_TILED_X:
+ stride = stride_reg * 512;
+ break;
+ case PLANE_CTL_TILED_Y:
+ stride = stride_reg * 128;
+ break;
+ case PLANE_CTL_TILED_YF:
+ if (bpp == 8)
+ stride = stride_reg * 64;
+ else if (bpp == 16 || bpp == 32 || bpp == 64)
+ stride = stride_reg * 128;
+ else
+ gvt_dbg_core("skl: unsupported bpp:%d\n", bpp);
+ break;
+ default:
+ gvt_dbg_core("skl: unsupported tile format:%x\n",
+ tiled);
+ }
+ }
+
+ return stride;
+}
+
+static int get_active_pipe(struct intel_vgpu *vgpu)
+{
+ int i;
+
+ for (i = 0; i < I915_MAX_PIPES; i++)
+ if (pipe_is_enabled(vgpu, i))
+ break;
+
+ return i;
+}
+
+/**
+ * intel_vgpu_decode_primary_plane - Decode primary plane
+ * @vgpu: input vgpu
+ * @plane: primary plane to save decoded info
+ * This function is called for decoding plane
+ *
+ * Returns:
+ * 0 on success, non-zero if failed.
+ */
+int intel_vgpu_decode_primary_plane(struct intel_vgpu *vgpu,
+ struct intel_vgpu_primary_plane_format *plane)
+{
+ u32 val, fmt;
+ struct drm_i915_private *dev_priv = vgpu->gvt->dev_priv;
+ int pipe;
+
+ pipe = get_active_pipe(vgpu);
+ if (pipe >= I915_MAX_PIPES)
+ return -ENODEV;
+
+ val = vgpu_vreg(vgpu, DSPCNTR(pipe));
+ plane->enabled = !!(val & DISPLAY_PLANE_ENABLE);
+ if (!plane->enabled)
+ return -ENODEV;
+
+ if (IS_SKYLAKE(dev_priv) || IS_KABYLAKE(dev_priv)) {
+ plane->tiled = (val & PLANE_CTL_TILED_MASK) >>
+ _PLANE_CTL_TILED_SHIFT;
+ fmt = skl_format_to_drm(
+ val & PLANE_CTL_FORMAT_MASK,
+ val & PLANE_CTL_ORDER_RGBX,
+ val & PLANE_CTL_ALPHA_MASK,
+ val & PLANE_CTL_YUV422_ORDER_MASK);
+ plane->bpp = skl_pixel_formats[fmt].bpp;
+ plane->drm_format = skl_pixel_formats[fmt].drm_format;
+ } else {
+ plane->tiled = !!(val & DISPPLANE_TILED);
+ fmt = bdw_format_to_drm(val & DISPPLANE_PIXFORMAT_MASK);
+ plane->bpp = bdw_pixel_formats[fmt].bpp;
+ plane->drm_format = bdw_pixel_formats[fmt].drm_format;
+ }
+
+ if (!plane->bpp) {
+ gvt_vgpu_err("Non-supported pixel format (0x%x)\n", fmt);
+ return -EINVAL;
+ }
+
+ plane->hw_format = fmt;
+
+ plane->base = vgpu_vreg(vgpu, DSPSURF(pipe)) & I915_GTT_PAGE_MASK;
+ if (!intel_gvt_ggtt_validate_range(vgpu, plane->base, 0)) {
+ gvt_vgpu_err("invalid gma address: %lx\n",
+ (unsigned long)plane->base);
+ return -EINVAL;
+ }
+
+ plane->base_gpa = intel_vgpu_gma_to_gpa(vgpu->gtt.ggtt_mm, plane->base);
+ if (plane->base_gpa == INTEL_GVT_INVALID_ADDR) {
+ gvt_vgpu_err("invalid gma address: %lx\n",
+ (unsigned long)plane->base);
+ return -EINVAL;
+ }
+
+ plane->stride = intel_vgpu_get_stride(vgpu, pipe, (plane->tiled << 10),
+ (IS_SKYLAKE(dev_priv) || IS_KABYLAKE(dev_priv)) ?
+ (_PRI_PLANE_STRIDE_MASK >> 6) :
+ _PRI_PLANE_STRIDE_MASK, plane->bpp);
+
+ plane->width = (vgpu_vreg(vgpu, PIPESRC(pipe)) & _PIPE_H_SRCSZ_MASK) >>
+ _PIPE_H_SRCSZ_SHIFT;
+ plane->width += 1;
+ plane->height = (vgpu_vreg(vgpu, PIPESRC(pipe)) &
+ _PIPE_V_SRCSZ_MASK) >> _PIPE_V_SRCSZ_SHIFT;
+ plane->height += 1; /* raw height is one minus the real value */
+
+ val = vgpu_vreg(vgpu, DSPTILEOFF(pipe));
+ plane->x_offset = (val & _PRI_PLANE_X_OFF_MASK) >>
+ _PRI_PLANE_X_OFF_SHIFT;
+ plane->y_offset = (val & _PRI_PLANE_Y_OFF_MASK) >>
+ _PRI_PLANE_Y_OFF_SHIFT;
+
+ return 0;
+}
+
+#define CURSOR_FORMAT_NUM (1 << 6)
+struct cursor_mode_format {
+ int drm_format; /* Pixel format in DRM definition */
+ u8 bpp; /* Bits per pixel; 0 indicates invalid */
+ u32 width; /* In pixel */
+ u32 height; /* In lines */
+ char *desc; /* The description */
+};
+
+static struct cursor_mode_format cursor_pixel_formats[] = {
+ {DRM_FORMAT_ARGB8888, 32, 128, 128, "128x128 32bpp ARGB"},
+ {DRM_FORMAT_ARGB8888, 32, 256, 256, "256x256 32bpp ARGB"},
+ {DRM_FORMAT_ARGB8888, 32, 64, 64, "64x64 32bpp ARGB"},
+ {DRM_FORMAT_ARGB8888, 32, 64, 64, "64x64 32bpp ARGB"},
+
+ /* non-supported format has bpp default to 0 */
+ {0, 0, 0, 0, NULL},
+};
+
+static int cursor_mode_to_drm(int mode)
+{
+ int cursor_pixel_formats_index = 4;
+
+ switch (mode) {
+ case CURSOR_MODE_128_ARGB_AX:
+ cursor_pixel_formats_index = 0;
+ break;
+ case CURSOR_MODE_256_ARGB_AX:
+ cursor_pixel_formats_index = 1;
+ break;
+ case CURSOR_MODE_64_ARGB_AX:
+ cursor_pixel_formats_index = 2;
+ break;
+ case CURSOR_MODE_64_32B_AX:
+ cursor_pixel_formats_index = 3;
+ break;
+
+ default:
+ break;
+ }
+
+ return cursor_pixel_formats_index;
+}
+
+/**
+ * intel_vgpu_decode_cursor_plane - Decode sprite plane
+ * @vgpu: input vgpu
+ * @plane: cursor plane to save decoded info
+ * This function is called for decoding plane
+ *
+ * Returns:
+ * 0 on success, non-zero if failed.
+ */
+int intel_vgpu_decode_cursor_plane(struct intel_vgpu *vgpu,
+ struct intel_vgpu_cursor_plane_format *plane)
+{
+ u32 val, mode, index;
+ u32 alpha_plane, alpha_force;
+ struct drm_i915_private *dev_priv = vgpu->gvt->dev_priv;
+ int pipe;
+
+ pipe = get_active_pipe(vgpu);
+ if (pipe >= I915_MAX_PIPES)
+ return -ENODEV;
+
+ val = vgpu_vreg(vgpu, CURCNTR(pipe));
+ mode = val & CURSOR_MODE;
+ plane->enabled = (mode != CURSOR_MODE_DISABLE);
+ if (!plane->enabled)
+ return -ENODEV;
+
+ index = cursor_mode_to_drm(mode);
+
+ if (!cursor_pixel_formats[index].bpp) {
+ gvt_vgpu_err("Non-supported cursor mode (0x%x)\n", mode);
+ return -EINVAL;
+ }
+ plane->mode = mode;
+ plane->bpp = cursor_pixel_formats[index].bpp;
+ plane->drm_format = cursor_pixel_formats[index].drm_format;
+ plane->width = cursor_pixel_formats[index].width;
+ plane->height = cursor_pixel_formats[index].height;
+
+ alpha_plane = (val & _CURSOR_ALPHA_PLANE_MASK) >>
+ _CURSOR_ALPHA_PLANE_SHIFT;
+ alpha_force = (val & _CURSOR_ALPHA_FORCE_MASK) >>
+ _CURSOR_ALPHA_FORCE_SHIFT;
+ if (alpha_plane || alpha_force)
+ gvt_dbg_core("alpha_plane=0x%x, alpha_force=0x%x\n",
+ alpha_plane, alpha_force);
+
+ plane->base = vgpu_vreg(vgpu, CURBASE(pipe)) & I915_GTT_PAGE_MASK;
+ if (!intel_gvt_ggtt_validate_range(vgpu, plane->base, 0)) {
+ gvt_vgpu_err("invalid gma address: %lx\n",
+ (unsigned long)plane->base);
+ return -EINVAL;
+ }
+
+ plane->base_gpa = intel_vgpu_gma_to_gpa(vgpu->gtt.ggtt_mm, plane->base);
+ if (plane->base_gpa == INTEL_GVT_INVALID_ADDR) {
+ gvt_vgpu_err("invalid gma address: %lx\n",
+ (unsigned long)plane->base);
+ return -EINVAL;
+ }
+
+ val = vgpu_vreg(vgpu, CURPOS(pipe));
+ plane->x_pos = (val & _CURSOR_POS_X_MASK) >> _CURSOR_POS_X_SHIFT;
+ plane->x_sign = (val & _CURSOR_SIGN_X_MASK) >> _CURSOR_SIGN_X_SHIFT;
+ plane->y_pos = (val & _CURSOR_POS_Y_MASK) >> _CURSOR_POS_Y_SHIFT;
+ plane->y_sign = (val & _CURSOR_SIGN_Y_MASK) >> _CURSOR_SIGN_Y_SHIFT;
+
+ return 0;
+}
+
+#define SPRITE_FORMAT_NUM (1 << 3)
+
+static struct pixel_format sprite_pixel_formats[SPRITE_FORMAT_NUM] = {
+ [0x0] = {DRM_FORMAT_YUV422, 16, "YUV 16-bit 4:2:2 packed"},
+ [0x1] = {DRM_FORMAT_XRGB2101010, 32, "RGB 32-bit 2:10:10:10"},
+ [0x2] = {DRM_FORMAT_XRGB8888, 32, "RGB 32-bit 8:8:8:8"},
+ [0x4] = {DRM_FORMAT_AYUV, 32,
+ "YUV 32-bit 4:4:4 packed (8:8:8:8 MSB-X:Y:U:V)"},
+};
+
+/**
+ * intel_vgpu_decode_sprite_plane - Decode sprite plane
+ * @vgpu: input vgpu
+ * @plane: sprite plane to save decoded info
+ * This function is called for decoding plane
+ *
+ * Returns:
+ * 0 on success, non-zero if failed.
+ */
+int intel_vgpu_decode_sprite_plane(struct intel_vgpu *vgpu,
+ struct intel_vgpu_sprite_plane_format *plane)
+{
+ u32 val, fmt;
+ u32 color_order, yuv_order;
+ int drm_format;
+ int pipe;
+
+ pipe = get_active_pipe(vgpu);
+ if (pipe >= I915_MAX_PIPES)
+ return -ENODEV;
+
+ val = vgpu_vreg(vgpu, SPRCTL(pipe));
+ plane->enabled = !!(val & SPRITE_ENABLE);
+ if (!plane->enabled)
+ return -ENODEV;
+
+ plane->tiled = !!(val & SPRITE_TILED);
+ color_order = !!(val & SPRITE_RGB_ORDER_RGBX);
+ yuv_order = (val & SPRITE_YUV_BYTE_ORDER_MASK) >>
+ _SPRITE_YUV_ORDER_SHIFT;
+
+ fmt = (val & SPRITE_PIXFORMAT_MASK) >> _SPRITE_FMT_SHIFT;
+ if (!sprite_pixel_formats[fmt].bpp) {
+ gvt_vgpu_err("Non-supported pixel format (0x%x)\n", fmt);
+ return -EINVAL;
+ }
+ plane->hw_format = fmt;
+ plane->bpp = sprite_pixel_formats[fmt].bpp;
+ drm_format = sprite_pixel_formats[fmt].drm_format;
+
+ /* Order of RGB values in an RGBxxx buffer may be ordered RGB or
+ * BGR depending on the state of the color_order field
+ */
+ if (!color_order) {
+ if (drm_format == DRM_FORMAT_XRGB2101010)
+ drm_format = DRM_FORMAT_XBGR2101010;
+ else if (drm_format == DRM_FORMAT_XRGB8888)
+ drm_format = DRM_FORMAT_XBGR8888;
+ }
+
+ if (drm_format == DRM_FORMAT_YUV422) {
+ switch (yuv_order) {
+ case 0:
+ drm_format = DRM_FORMAT_YUYV;
+ break;
+ case 1:
+ drm_format = DRM_FORMAT_UYVY;
+ break;
+ case 2:
+ drm_format = DRM_FORMAT_YVYU;
+ break;
+ case 3:
+ drm_format = DRM_FORMAT_VYUY;
+ break;
+ default:
+ /* yuv_order has only 2 bits */
+ break;
+ }
+ }
+
+ plane->drm_format = drm_format;
+
+ plane->base = vgpu_vreg(vgpu, SPRSURF(pipe)) & I915_GTT_PAGE_MASK;
+ if (!intel_gvt_ggtt_validate_range(vgpu, plane->base, 0)) {
+ gvt_vgpu_err("invalid gma address: %lx\n",
+ (unsigned long)plane->base);
+ return -EINVAL;
+ }
+
+ plane->base_gpa = intel_vgpu_gma_to_gpa(vgpu->gtt.ggtt_mm, plane->base);
+ if (plane->base_gpa == INTEL_GVT_INVALID_ADDR) {
+ gvt_vgpu_err("invalid gma address: %lx\n",
+ (unsigned long)plane->base);
+ return -EINVAL;
+ }
+
+ plane->stride = vgpu_vreg(vgpu, SPRSTRIDE(pipe)) &
+ _SPRITE_STRIDE_MASK;
+
+ val = vgpu_vreg(vgpu, SPRSIZE(pipe));
+ plane->height = (val & _SPRITE_SIZE_HEIGHT_MASK) >>
+ _SPRITE_SIZE_HEIGHT_SHIFT;
+ plane->width = (val & _SPRITE_SIZE_WIDTH_MASK) >>
+ _SPRITE_SIZE_WIDTH_SHIFT;
+ plane->height += 1; /* raw height is one minus the real value */
+ plane->width += 1; /* raw width is one minus the real value */
+
+ val = vgpu_vreg(vgpu, SPRPOS(pipe));
+ plane->x_pos = (val & _SPRITE_POS_X_MASK) >> _SPRITE_POS_X_SHIFT;
+ plane->y_pos = (val & _SPRITE_POS_Y_MASK) >> _SPRITE_POS_Y_SHIFT;
+
+ val = vgpu_vreg(vgpu, SPROFFSET(pipe));
+ plane->x_offset = (val & _SPRITE_OFFSET_START_X_MASK) >>
+ _SPRITE_OFFSET_START_X_SHIFT;
+ plane->y_offset = (val & _SPRITE_OFFSET_START_Y_MASK) >>
+ _SPRITE_OFFSET_START_Y_SHIFT;
+
+ return 0;
+}
diff --git a/drivers/gpu/drm/i915/gvt/fb_decoder.h b/drivers/gpu/drm/i915/gvt/fb_decoder.h
new file mode 100644
index 0000000000000000000000000000000000000000..cb055f3c81a29c629f2dcc327ce0da9a1b827ee3
--- /dev/null
+++ b/drivers/gpu/drm/i915/gvt/fb_decoder.h
@@ -0,0 +1,169 @@
+/*
+ * Copyright(c) 2011-2016 Intel Corporation. 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, 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 (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 NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS 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:
+ * Kevin Tian <kevin.tian@intel.com>
+ *
+ * Contributors:
+ * Bing Niu <bing.niu@intel.com>
+ * Xu Han <xu.han@intel.com>
+ * Ping Gao <ping.a.gao@intel.com>
+ * Xiaoguang Chen <xiaoguang.chen@intel.com>
+ * Yang Liu <yang2.liu@intel.com>
+ * Tina Zhang <tina.zhang@intel.com>
+ *
+ */
+
+#ifndef _GVT_FB_DECODER_H_
+#define _GVT_FB_DECODER_H_
+
+#define _PLANE_CTL_FORMAT_SHIFT 24
+#define _PLANE_CTL_TILED_SHIFT 10
+#define _PIPE_V_SRCSZ_SHIFT 0
+#define _PIPE_V_SRCSZ_MASK (0xfff << _PIPE_V_SRCSZ_SHIFT)
+#define _PIPE_H_SRCSZ_SHIFT 16
+#define _PIPE_H_SRCSZ_MASK (0x1fff << _PIPE_H_SRCSZ_SHIFT)
+
+#define _PRI_PLANE_FMT_SHIFT 26
+#define _PRI_PLANE_STRIDE_MASK (0x3ff << 6)
+#define _PRI_PLANE_X_OFF_SHIFT 0
+#define _PRI_PLANE_X_OFF_MASK (0x1fff << _PRI_PLANE_X_OFF_SHIFT)
+#define _PRI_PLANE_Y_OFF_SHIFT 16
+#define _PRI_PLANE_Y_OFF_MASK (0xfff << _PRI_PLANE_Y_OFF_SHIFT)
+
+#define _CURSOR_MODE 0x3f
+#define _CURSOR_ALPHA_FORCE_SHIFT 8
+#define _CURSOR_ALPHA_FORCE_MASK (0x3 << _CURSOR_ALPHA_FORCE_SHIFT)
+#define _CURSOR_ALPHA_PLANE_SHIFT 10
+#define _CURSOR_ALPHA_PLANE_MASK (0x3 << _CURSOR_ALPHA_PLANE_SHIFT)
+#define _CURSOR_POS_X_SHIFT 0
+#define _CURSOR_POS_X_MASK (0x1fff << _CURSOR_POS_X_SHIFT)
+#define _CURSOR_SIGN_X_SHIFT 15
+#define _CURSOR_SIGN_X_MASK (1 << _CURSOR_SIGN_X_SHIFT)
+#define _CURSOR_POS_Y_SHIFT 16
+#define _CURSOR_POS_Y_MASK (0xfff << _CURSOR_POS_Y_SHIFT)
+#define _CURSOR_SIGN_Y_SHIFT 31
+#define _CURSOR_SIGN_Y_MASK (1 << _CURSOR_SIGN_Y_SHIFT)
+
+#define _SPRITE_FMT_SHIFT 25
+#define _SPRITE_COLOR_ORDER_SHIFT 20
+#define _SPRITE_YUV_ORDER_SHIFT 16
+#define _SPRITE_STRIDE_SHIFT 6
+#define _SPRITE_STRIDE_MASK (0x1ff << _SPRITE_STRIDE_SHIFT)
+#define _SPRITE_SIZE_WIDTH_SHIFT 0
+#define _SPRITE_SIZE_HEIGHT_SHIFT 16
+#define _SPRITE_SIZE_WIDTH_MASK (0x1fff << _SPRITE_SIZE_WIDTH_SHIFT)
+#define _SPRITE_SIZE_HEIGHT_MASK (0xfff << _SPRITE_SIZE_HEIGHT_SHIFT)
+#define _SPRITE_POS_X_SHIFT 0
+#define _SPRITE_POS_Y_SHIFT 16
+#define _SPRITE_POS_X_MASK (0x1fff << _SPRITE_POS_X_SHIFT)
+#define _SPRITE_POS_Y_MASK (0xfff << _SPRITE_POS_Y_SHIFT)
+#define _SPRITE_OFFSET_START_X_SHIFT 0
+#define _SPRITE_OFFSET_START_Y_SHIFT 16
+#define _SPRITE_OFFSET_START_X_MASK (0x1fff << _SPRITE_OFFSET_START_X_SHIFT)
+#define _SPRITE_OFFSET_START_Y_MASK (0xfff << _SPRITE_OFFSET_START_Y_SHIFT)
+
+enum GVT_FB_EVENT {
+ FB_MODE_SET_START = 1,
+ FB_MODE_SET_END,
+ FB_DISPLAY_FLIP,
+};
+
+enum DDI_PORT {
+ DDI_PORT_NONE = 0,
+ DDI_PORT_B = 1,
+ DDI_PORT_C = 2,
+ DDI_PORT_D = 3,
+ DDI_PORT_E = 4
+};
+
+struct intel_gvt;
+
+/* color space conversion and gamma correction are not included */
+struct intel_vgpu_primary_plane_format {
+ u8 enabled; /* plane is enabled */
+ u8 tiled; /* X-tiled */
+ u8 bpp; /* bits per pixel */
+ u32 hw_format; /* format field in the PRI_CTL register */
+ u32 drm_format; /* format in DRM definition */
+ u32 base; /* framebuffer base in graphics memory */
+ u64 base_gpa;
+ u32 x_offset; /* in pixels */
+ u32 y_offset; /* in lines */
+ u32 width; /* in pixels */
+ u32 height; /* in lines */
+ u32 stride; /* in bytes */
+};
+
+struct intel_vgpu_sprite_plane_format {
+ u8 enabled; /* plane is enabled */
+ u8 tiled; /* X-tiled */
+ u8 bpp; /* bits per pixel */
+ u32 hw_format; /* format field in the SPR_CTL register */
+ u32 drm_format; /* format in DRM definition */
+ u32 base; /* sprite base in graphics memory */
+ u64 base_gpa;
+ u32 x_pos; /* in pixels */
+ u32 y_pos; /* in lines */
+ u32 x_offset; /* in pixels */
+ u32 y_offset; /* in lines */
+ u32 width; /* in pixels */
+ u32 height; /* in lines */
+ u32 stride; /* in bytes */
+};
+
+struct intel_vgpu_cursor_plane_format {
+ u8 enabled;
+ u8 mode; /* cursor mode select */
+ u8 bpp; /* bits per pixel */
+ u32 drm_format; /* format in DRM definition */
+ u32 base; /* cursor base in graphics memory */
+ u64 base_gpa;
+ u32 x_pos; /* in pixels */
+ u32 y_pos; /* in lines */
+ u8 x_sign; /* X Position Sign */
+ u8 y_sign; /* Y Position Sign */
+ u32 width; /* in pixels */
+ u32 height; /* in lines */
+ u32 x_hot; /* in pixels */
+ u32 y_hot; /* in pixels */
+};
+
+struct intel_vgpu_pipe_format {
+ struct intel_vgpu_primary_plane_format primary;
+ struct intel_vgpu_sprite_plane_format sprite;
+ struct intel_vgpu_cursor_plane_format cursor;
+ enum DDI_PORT ddi_port; /* the DDI port that pipe is connected to */
+};
+
+struct intel_vgpu_fb_format {
+ struct intel_vgpu_pipe_format pipes[I915_MAX_PIPES];
+};
+
+int intel_vgpu_decode_primary_plane(struct intel_vgpu *vgpu,
+ struct intel_vgpu_primary_plane_format *plane);
+int intel_vgpu_decode_cursor_plane(struct intel_vgpu *vgpu,
+ struct intel_vgpu_cursor_plane_format *plane);
+int intel_vgpu_decode_sprite_plane(struct intel_vgpu *vgpu,
+ struct intel_vgpu_sprite_plane_format *plane);
+
+#endif
diff --git a/drivers/gpu/drm/i915/gvt/gvt.c b/drivers/gpu/drm/i915/gvt/gvt.c
index 3a74a408a96656d9efe852ba924bf79b833670e2..9a5dce3aa10ab2bfe2aa884af4974517ebf9f5c0 100644
--- a/drivers/gpu/drm/i915/gvt/gvt.c
+++ b/drivers/gpu/drm/i915/gvt/gvt.c
@@ -181,6 +181,8 @@ static const struct intel_gvt_ops intel_gvt_ops = {
.vgpu_deactivate = intel_gvt_deactivate_vgpu,
.gvt_find_vgpu_type = intel_gvt_find_vgpu_type,
.get_gvt_attrs = intel_get_gvt_attrs,
+ .vgpu_query_plane = intel_vgpu_query_plane,
+ .vgpu_get_dmabuf = intel_vgpu_get_dmabuf,
};
/**
diff --git a/drivers/gpu/drm/i915/gvt/gvt.h b/drivers/gpu/drm/i915/gvt/gvt.h
index 393066726993e55aacc4e5535f3447d74f033d57..77df9bad5dea1d6a8dc76293e1ddd12a947b8cc8 100644
--- a/drivers/gpu/drm/i915/gvt/gvt.h
+++ b/drivers/gpu/drm/i915/gvt/gvt.h
@@ -46,6 +46,8 @@
#include "sched_policy.h"
#include "render.h"
#include "cmd_parser.h"
+#include "fb_decoder.h"
+#include "dmabuf.h"
#define GVT_MAX_VGPU 8
@@ -123,7 +125,9 @@ struct intel_vgpu_irq {
};
struct intel_vgpu_opregion {
+ bool mapped;
void *va;
+ void *va_gopregion;
u32 gfn[INTEL_GVT_OPREGION_PAGES];
};
@@ -206,8 +210,16 @@ struct intel_vgpu {
struct kvm *kvm;
struct work_struct release_work;
atomic_t released;
+ struct vfio_device *vfio_device;
} vdev;
#endif
+
+ struct list_head dmabuf_obj_list_head;
+ struct mutex dmabuf_lock;
+ struct idr object_idr;
+
+ struct completion vblank_done;
+
};
/* validating GM healthy status*/
@@ -505,7 +517,8 @@ static inline u64 intel_vgpu_get_bar_gpa(struct intel_vgpu *vgpu, int bar)
}
void intel_vgpu_clean_opregion(struct intel_vgpu *vgpu);
-int intel_vgpu_init_opregion(struct intel_vgpu *vgpu, u32 gpa);
+int intel_vgpu_init_opregion(struct intel_vgpu *vgpu);
+int intel_vgpu_opregion_base_write_handler(struct intel_vgpu *vgpu, u32 gpa);
int intel_vgpu_emulate_opregion_request(struct intel_vgpu *vgpu, u32 swsci);
void populate_pvinfo_page(struct intel_vgpu *vgpu);
@@ -532,6 +545,8 @@ struct intel_gvt_ops {
const char *name);
bool (*get_gvt_attrs)(struct attribute ***type_attrs,
struct attribute_group ***intel_vgpu_type_groups);
+ int (*vgpu_query_plane)(struct intel_vgpu *vgpu, void *);
+ int (*vgpu_get_dmabuf)(struct intel_vgpu *vgpu, unsigned int);
};
diff --git a/drivers/gpu/drm/i915/gvt/hypercall.h b/drivers/gpu/drm/i915/gvt/hypercall.h
index df7f33abd393ed6ef0c071895f6a4b1b519b7415..a1bd82feb827451d8c1aa4f010e847e22fffabcd 100644
--- a/drivers/gpu/drm/i915/gvt/hypercall.h
+++ b/drivers/gpu/drm/i915/gvt/hypercall.h
@@ -55,6 +55,9 @@ struct intel_gvt_mpt {
unsigned long mfn, unsigned int nr, bool map);
int (*set_trap_area)(unsigned long handle, u64 start, u64 end,
bool map);
+ int (*set_opregion)(void *vgpu);
+ int (*get_vfio_device)(void *vgpu);
+ void (*put_vfio_device)(void *vgpu);
};
extern struct intel_gvt_mpt xengt_mpt;
diff --git a/drivers/gpu/drm/i915/gvt/kvmgt.c b/drivers/gpu/drm/i915/gvt/kvmgt.c
index 110f07e8bcfb9093b52027f89af1ad1017821535..b8a85e08091ad852be028a9a6f64639845b8c913 100644
--- a/drivers/gpu/drm/i915/gvt/kvmgt.c
+++ b/drivers/gpu/drm/i915/gvt/kvmgt.c
@@ -53,11 +53,23 @@ static const struct intel_gvt_ops *intel_gvt_ops;
#define VFIO_PCI_INDEX_TO_OFFSET(index) ((u64)(index) << VFIO_PCI_OFFSET_SHIFT)
#define VFIO_PCI_OFFSET_MASK (((u64)(1) << VFIO_PCI_OFFSET_SHIFT) - 1)
+#define OPREGION_SIGNATURE "IntelGraphicsMem"
+
+struct vfio_region;
+struct intel_vgpu_regops {
+ size_t (*rw)(struct intel_vgpu *vgpu, char *buf,
+ size_t count, loff_t *ppos, bool iswrite);
+ void (*release)(struct intel_vgpu *vgpu,
+ struct vfio_region *region);
+};
+
struct vfio_region {
u32 type;
u32 subtype;
size_t size;
u32 flags;
+ const struct intel_vgpu_regops *ops;
+ void *data;
};
struct kvmgt_pgfn {
@@ -316,6 +328,108 @@ static void kvmgt_protect_table_del(struct kvmgt_guest_info *info,
}
}
+static size_t intel_vgpu_reg_rw_opregion(struct intel_vgpu *vgpu, char *buf,
+ size_t count, loff_t *ppos, bool iswrite)
+{
+ unsigned int i = VFIO_PCI_OFFSET_TO_INDEX(*ppos) -
+ VFIO_PCI_NUM_REGIONS;
+ void *base = vgpu->vdev.region[i].data;
+ loff_t pos = *ppos & VFIO_PCI_OFFSET_MASK;
+
+ if (pos >= vgpu->vdev.region[i].size || iswrite) {
+ gvt_vgpu_err("invalid op or offset for Intel vgpu OpRegion\n");
+ return -EINVAL;
+ }
+ count = min(count, (size_t)(vgpu->vdev.region[i].size - pos));
+ memcpy(buf, base + pos, count);
+
+ return count;
+}
+
+static void intel_vgpu_reg_release_opregion(struct intel_vgpu *vgpu,
+ struct vfio_region *region)
+{
+}
+
+static const struct intel_vgpu_regops intel_vgpu_regops_opregion = {
+ .rw = intel_vgpu_reg_rw_opregion,
+ .release = intel_vgpu_reg_release_opregion,
+};
+
+static int intel_vgpu_register_reg(struct intel_vgpu *vgpu,
+ unsigned int type, unsigned int subtype,
+ const struct intel_vgpu_regops *ops,
+ size_t size, u32 flags, void *data)
+{
+ struct vfio_region *region;
+
+ region = krealloc(vgpu->vdev.region,
+ (vgpu->vdev.num_regions + 1) * sizeof(*region),
+ GFP_KERNEL);
+ if (!region)
+ return -ENOMEM;
+
+ vgpu->vdev.region = region;
+ vgpu->vdev.region[vgpu->vdev.num_regions].type = type;
+ vgpu->vdev.region[vgpu->vdev.num_regions].subtype = subtype;
+ vgpu->vdev.region[vgpu->vdev.num_regions].ops = ops;
+ vgpu->vdev.region[vgpu->vdev.num_regions].size = size;
+ vgpu->vdev.region[vgpu->vdev.num_regions].flags = flags;
+ vgpu->vdev.region[vgpu->vdev.num_regions].data = data;
+ vgpu->vdev.num_regions++;
+ return 0;
+}
+
+static int kvmgt_get_vfio_device(void *p_vgpu)
+{
+ struct intel_vgpu *vgpu = (struct intel_vgpu *)p_vgpu;
+
+ vgpu->vdev.vfio_device = vfio_device_get_from_dev(
+ mdev_dev(vgpu->vdev.mdev));
+ if (!vgpu->vdev.vfio_device) {
+ gvt_vgpu_err("failed to get vfio device\n");
+ return -ENODEV;
+ }
+ return 0;
+}
+
+
+static int kvmgt_set_opregion(void *p_vgpu)
+{
+ struct intel_vgpu *vgpu = (struct intel_vgpu *)p_vgpu;
+ void *base;
+ int ret;
+
+ /* Each vgpu has its own opregion, although VFIO would create another
+ * one later. This one is used to expose opregion to VFIO. And the
+ * other one created by VFIO later, is used by guest actually.
+ */
+ base = vgpu_opregion(vgpu)->va;
+ if (!base)
+ return -ENOMEM;
+
+ if (memcmp(base, OPREGION_SIGNATURE, 16)) {
+ memunmap(base);
+ return -EINVAL;
+ }
+
+ ret = intel_vgpu_register_reg(vgpu,
+ PCI_VENDOR_ID_INTEL | VFIO_REGION_TYPE_PCI_VENDOR_TYPE,
+ VFIO_REGION_SUBTYPE_INTEL_IGD_OPREGION,
+ &intel_vgpu_regops_opregion, OPREGION_SIZE,
+ VFIO_REGION_INFO_FLAG_READ, base);
+
+ return ret;
+}
+
+static void kvmgt_put_vfio_device(void *vgpu)
+{
+ if (WARN_ON(!((struct intel_vgpu *)vgpu)->vdev.vfio_device))
+ return;
+
+ vfio_device_put(((struct intel_vgpu *)vgpu)->vdev.vfio_device);
+}
+
static int intel_vgpu_create(struct kobject *kobj, struct mdev_device *mdev)
{
struct intel_vgpu *vgpu = NULL;
@@ -546,7 +660,7 @@ static ssize_t intel_vgpu_rw(struct mdev_device *mdev, char *buf,
int ret = -EINVAL;
- if (index >= VFIO_PCI_NUM_REGIONS) {
+ if (index >= VFIO_PCI_NUM_REGIONS + vgpu->vdev.num_regions) {
gvt_vgpu_err("invalid index: %u\n", index);
return -EINVAL;
}
@@ -574,8 +688,14 @@ static ssize_t intel_vgpu_rw(struct mdev_device *mdev, char *buf,
case VFIO_PCI_BAR5_REGION_INDEX:
case VFIO_PCI_VGA_REGION_INDEX:
case VFIO_PCI_ROM_REGION_INDEX:
+ break;
default:
- gvt_vgpu_err("unsupported region: %u\n", index);
+ if (index >= VFIO_PCI_NUM_REGIONS + vgpu->vdev.num_regions)
+ return -EINVAL;
+
+ index -= VFIO_PCI_NUM_REGIONS;
+ return vgpu->vdev.region[index].ops->rw(vgpu, buf, count,
+ ppos, is_write);
}
return ret == 0 ? count : ret;
@@ -838,7 +958,8 @@ static long intel_vgpu_ioctl(struct mdev_device *mdev, unsigned int cmd,
info.flags = VFIO_DEVICE_FLAGS_PCI;
info.flags |= VFIO_DEVICE_FLAGS_RESET;
- info.num_regions = VFIO_PCI_NUM_REGIONS;
+ info.num_regions = VFIO_PCI_NUM_REGIONS +
+ vgpu->vdev.num_regions;
info.num_irqs = VFIO_PCI_NUM_IRQS;
return copy_to_user((void __user *)arg, &info, minsz) ?
@@ -959,6 +1080,7 @@ static long intel_vgpu_ioctl(struct mdev_device *mdev, unsigned int cmd,
}
if (caps.size) {
+ info.flags |= VFIO_REGION_INFO_FLAG_CAPS;
if (info.argsz < sizeof(info) + caps.size) {
info.argsz = sizeof(info) + caps.size;
info.cap_offset = 0;
@@ -1045,6 +1167,33 @@ static long intel_vgpu_ioctl(struct mdev_device *mdev, unsigned int cmd,
} else if (cmd == VFIO_DEVICE_RESET) {
intel_gvt_ops->vgpu_reset(vgpu);
return 0;
+ } else if (cmd == VFIO_DEVICE_QUERY_GFX_PLANE) {
+ struct vfio_device_gfx_plane_info dmabuf;
+ int ret = 0;
+
+ minsz = offsetofend(struct vfio_device_gfx_plane_info,
+ dmabuf_id);
+ if (copy_from_user(&dmabuf, (void __user *)arg, minsz))
+ return -EFAULT;
+ if (dmabuf.argsz < minsz)
+ return -EINVAL;
+
+ ret = intel_gvt_ops->vgpu_query_plane(vgpu, &dmabuf);
+ if (ret != 0)
+ return ret;
+
+ return copy_to_user((void __user *)arg, &dmabuf, minsz) ?
+ -EFAULT : 0;
+ } else if (cmd == VFIO_DEVICE_GET_GFX_DMABUF) {
+ __u32 dmabuf_id;
+ __s32 dmabuf_fd;
+
+ if (get_user(dmabuf_id, (__u32 __user *)arg))
+ return -EFAULT;
+
+ dmabuf_fd = intel_gvt_ops->vgpu_get_dmabuf(vgpu, dmabuf_id);
+ return dmabuf_fd;
+
}
return 0;
@@ -1286,6 +1435,9 @@ static int kvmgt_guest_init(struct mdev_device *mdev)
kvmgt_protect_table_init(info);
gvt_cache_init(vgpu);
+ mutex_init(&vgpu->dmabuf_lock);
+ init_completion(&vgpu->vblank_done);
+
info->track_node.track_write = kvmgt_page_track_write;
info->track_node.track_flush_slot = kvmgt_page_track_flush_slot;
kvm_page_track_register_notifier(kvm, &info->track_node);
@@ -1426,6 +1578,9 @@ struct intel_gvt_mpt kvmgt_mpt = {
.read_gpa = kvmgt_read_gpa,
.write_gpa = kvmgt_write_gpa,
.gfn_to_mfn = kvmgt_gfn_to_pfn,
+ .set_opregion = kvmgt_set_opregion,
+ .get_vfio_device = kvmgt_get_vfio_device,
+ .put_vfio_device = kvmgt_put_vfio_device,
};
EXPORT_SYMBOL_GPL(kvmgt_mpt);
diff --git a/drivers/gpu/drm/i915/gvt/mpt.h b/drivers/gpu/drm/i915/gvt/mpt.h
index c436e20ea59efce25fe2c91c8321dbf8fcd4020e..ca8005a6d5faa139bb96b55320b7aa6d3703cb8c 100644
--- a/drivers/gpu/drm/i915/gvt/mpt.h
+++ b/drivers/gpu/drm/i915/gvt/mpt.h
@@ -294,4 +294,49 @@ static inline int intel_gvt_hypervisor_set_trap_area(
return intel_gvt_host.mpt->set_trap_area(vgpu->handle, start, end, map);
}
+/**
+ * intel_gvt_hypervisor_set_opregion - Set opregion for guest
+ * @vgpu: a vGPU
+ *
+ * Returns:
+ * Zero on success, negative error code if failed.
+ */
+static inline int intel_gvt_hypervisor_set_opregion(struct intel_vgpu *vgpu)
+{
+ if (!intel_gvt_host.mpt->set_opregion)
+ return 0;
+
+ return intel_gvt_host.mpt->set_opregion(vgpu);
+}
+
+/**
+ * intel_gvt_hypervisor_get_vfio_device - increase vfio device ref count
+ * @vgpu: a vGPU
+ *
+ * Returns:
+ * Zero on success, negative error code if failed.
+ */
+static inline int intel_gvt_hypervisor_get_vfio_device(struct intel_vgpu *vgpu)
+{
+ if (!intel_gvt_host.mpt->get_vfio_device)
+ return 0;
+
+ return intel_gvt_host.mpt->get_vfio_device(vgpu);
+}
+
+/**
+ * intel_gvt_hypervisor_put_vfio_device - decrease vfio device ref count
+ * @vgpu: a vGPU
+ *
+ * Returns:
+ * Zero on success, negative error code if failed.
+ */
+static inline void intel_gvt_hypervisor_put_vfio_device(struct intel_vgpu *vgpu)
+{
+ if (!intel_gvt_host.mpt->put_vfio_device)
+ return;
+
+ intel_gvt_host.mpt->put_vfio_device(vgpu);
+}
+
#endif /* _GVT_MPT_H_ */
diff --git a/drivers/gpu/drm/i915/gvt/opregion.c b/drivers/gpu/drm/i915/gvt/opregion.c
index 80720e59723abfebd4733ebe6456afc649dc03de..8420d1fc3ddbe922db517fb95e9ff4c1186d62f5 100644
--- a/drivers/gpu/drm/i915/gvt/opregion.c
+++ b/drivers/gpu/drm/i915/gvt/opregion.c
@@ -213,11 +213,20 @@ static void virt_vbt_generation(struct vbt *v)
v->driver_features.lvds_config = BDB_DRIVER_FEATURE_NO_LVDS;
}
-static int alloc_and_init_virt_opregion(struct intel_vgpu *vgpu)
+/**
+ * intel_vgpu_init_opregion - initialize the stuff used to emulate opregion
+ * @vgpu: a vGPU
+ * @gpa: guest physical address of opregion
+ *
+ * Returns:
+ * Zero on success, negative error code if failed.
+ */
+int intel_vgpu_init_opregion(struct intel_vgpu *vgpu)
{
u8 *buf;
struct opregion_header *header;
struct vbt v;
+ const char opregion_signature[16] = OPREGION_SIGNATURE;
gvt_dbg_core("init vgpu%d opregion\n", vgpu->id);
vgpu_opregion(vgpu)->va = (void *)__get_free_pages(GFP_KERNEL |
@@ -231,8 +240,8 @@ static int alloc_and_init_virt_opregion(struct intel_vgpu *vgpu)
/* emulated opregion with VBT mailbox only */
buf = (u8 *)vgpu_opregion(vgpu)->va;
header = (struct opregion_header *)buf;
- memcpy(header->signature, OPREGION_SIGNATURE,
- sizeof(OPREGION_SIGNATURE));
+ memcpy(header->signature, opregion_signature,
+ sizeof(opregion_signature));
header->size = 0x8;
header->opregion_ver = 0x02000000;
header->mboxes = MBOX_VBT;
@@ -250,25 +259,6 @@ static int alloc_and_init_virt_opregion(struct intel_vgpu *vgpu)
return 0;
}
-static int init_vgpu_opregion(struct intel_vgpu *vgpu, u32 gpa)
-{
- int i, ret;
-
- if (WARN((vgpu_opregion(vgpu)->va),
- "vgpu%d: opregion has been initialized already.\n",
- vgpu->id))
- return -EINVAL;
-
- ret = alloc_and_init_virt_opregion(vgpu);
- if (ret < 0)
- return ret;
-
- for (i = 0; i < INTEL_GVT_OPREGION_PAGES; i++)
- vgpu_opregion(vgpu)->gfn[i] = (gpa >> PAGE_SHIFT) + i;
-
- return 0;
-}
-
static int map_vgpu_opregion(struct intel_vgpu *vgpu, bool map)
{
u64 mfn;
@@ -290,59 +280,91 @@ static int map_vgpu_opregion(struct intel_vgpu *vgpu, bool map)
return ret;
}
}
+
+ vgpu_opregion(vgpu)->mapped = map;
+
return 0;
}
/**
- * intel_vgpu_clean_opregion - clean the stuff used to emulate opregion
+ * intel_vgpu_opregion_base_write_handler - Opregion base register write handler
+ *
* @vgpu: a vGPU
+ * @gpa: guest physical address of opregion
*
+ * Returns:
+ * Zero on success, negative error code if failed.
*/
-void intel_vgpu_clean_opregion(struct intel_vgpu *vgpu)
+int intel_vgpu_opregion_base_write_handler(struct intel_vgpu *vgpu, u32 gpa)
{
- gvt_dbg_core("vgpu%d: clean vgpu opregion\n", vgpu->id);
- if (!vgpu_opregion(vgpu)->va)
- return;
+ int i, ret = 0;
+ unsigned long pfn;
- if (intel_gvt_host.hypervisor_type == INTEL_GVT_HYPERVISOR_XEN) {
- map_vgpu_opregion(vgpu, false);
- free_pages((unsigned long)vgpu_opregion(vgpu)->va,
- get_order(INTEL_GVT_OPREGION_SIZE));
+ gvt_dbg_core("emulate opregion from kernel\n");
+
+ switch (intel_gvt_host.hypervisor_type) {
+ case INTEL_GVT_HYPERVISOR_KVM:
+ pfn = intel_gvt_hypervisor_gfn_to_mfn(vgpu, gpa >> PAGE_SHIFT);
+ vgpu_opregion(vgpu)->va_gopregion = memremap(pfn << PAGE_SHIFT,
+ INTEL_GVT_OPREGION_SIZE,
+ MEMREMAP_WB);
+ if (!vgpu_opregion(vgpu)->va_gopregion) {
+ gvt_vgpu_err("failed to map guest opregion\n");
+ ret = -EFAULT;
+ }
+ vgpu_opregion(vgpu)->mapped = true;
+ break;
+ case INTEL_GVT_HYPERVISOR_XEN:
+ /**
+ * Wins guest on Xengt will write this register twice: xen
+ * hvmloader and windows graphic driver.
+ */
+ if (vgpu_opregion(vgpu)->mapped)
+ map_vgpu_opregion(vgpu, false);
+
+ for (i = 0; i < INTEL_GVT_OPREGION_PAGES; i++)
+ vgpu_opregion(vgpu)->gfn[i] = (gpa >> PAGE_SHIFT) + i;
- vgpu_opregion(vgpu)->va = NULL;
+ ret = map_vgpu_opregion(vgpu, true);
+ break;
+ default:
+ ret = -EINVAL;
+ gvt_vgpu_err("not supported hypervisor\n");
}
+
+ return ret;
}
/**
- * intel_vgpu_init_opregion - initialize the stuff used to emulate opregion
+ * intel_vgpu_clean_opregion - clean the stuff used to emulate opregion
* @vgpu: a vGPU
- * @gpa: guest physical address of opregion
*
- * Returns:
- * Zero on success, negative error code if failed.
*/
-int intel_vgpu_init_opregion(struct intel_vgpu *vgpu, u32 gpa)
+void intel_vgpu_clean_opregion(struct intel_vgpu *vgpu)
{
- int ret;
+ gvt_dbg_core("vgpu%d: clean vgpu opregion\n", vgpu->id);
- gvt_dbg_core("vgpu%d: init vgpu opregion\n", vgpu->id);
+ if (!vgpu_opregion(vgpu)->va)
+ return;
if (intel_gvt_host.hypervisor_type == INTEL_GVT_HYPERVISOR_XEN) {
- gvt_dbg_core("emulate opregion from kernel\n");
-
- ret = init_vgpu_opregion(vgpu, gpa);
- if (ret)
- return ret;
-
- ret = map_vgpu_opregion(vgpu, true);
- if (ret)
- return ret;
+ if (vgpu_opregion(vgpu)->mapped)
+ map_vgpu_opregion(vgpu, false);
+ } else if (intel_gvt_host.hypervisor_type == INTEL_GVT_HYPERVISOR_KVM) {
+ if (vgpu_opregion(vgpu)->mapped) {
+ memunmap(vgpu_opregion(vgpu)->va_gopregion);
+ vgpu_opregion(vgpu)->va_gopregion = NULL;
+ }
}
+ free_pages((unsigned long)vgpu_opregion(vgpu)->va,
+ get_order(INTEL_GVT_OPREGION_SIZE));
+
+ vgpu_opregion(vgpu)->va = NULL;
- return 0;
}
+
#define GVT_OPREGION_FUNC(scic) \
({ \
u32 __ret; \
@@ -461,8 +483,21 @@ int intel_vgpu_emulate_opregion_request(struct intel_vgpu *vgpu, u32 swsci)
u32 *scic, *parm;
u32 func, subfunc;
- scic = vgpu_opregion(vgpu)->va + INTEL_GVT_OPREGION_SCIC;
- parm = vgpu_opregion(vgpu)->va + INTEL_GVT_OPREGION_PARM;
+ switch (intel_gvt_host.hypervisor_type) {
+ case INTEL_GVT_HYPERVISOR_XEN:
+ scic = vgpu_opregion(vgpu)->va + INTEL_GVT_OPREGION_SCIC;
+ parm = vgpu_opregion(vgpu)->va + INTEL_GVT_OPREGION_PARM;
+ break;
+ case INTEL_GVT_HYPERVISOR_KVM:
+ scic = vgpu_opregion(vgpu)->va_gopregion +
+ INTEL_GVT_OPREGION_SCIC;
+ parm = vgpu_opregion(vgpu)->va_gopregion +
+ INTEL_GVT_OPREGION_PARM;
+ break;
+ default:
+ gvt_vgpu_err("not supported hypervisor\n");
+ return -EINVAL;
+ }
if (!(swsci & SWSCI_SCI_SELECT)) {
gvt_vgpu_err("requesting SMI service\n");
diff --git a/drivers/gpu/drm/i915/gvt/sched_policy.c b/drivers/gpu/drm/i915/gvt/sched_policy.c
index 03532dfc0cd51b8342e50da61524024dafc8ac34..eea1a2f920990a17f9ead7f91187b83c01e85eb6 100644
--- a/drivers/gpu/drm/i915/gvt/sched_policy.c
+++ b/drivers/gpu/drm/i915/gvt/sched_policy.c
@@ -372,6 +372,11 @@ void intel_vgpu_start_schedule(struct intel_vgpu *vgpu)
vgpu->gvt->scheduler.sched_ops->start_schedule(vgpu);
}
+void intel_gvt_kick_schedule(struct intel_gvt *gvt)
+{
+ intel_gvt_request_service(gvt, INTEL_GVT_REQUEST_EVENT_SCHED);
+}
+
void intel_vgpu_stop_schedule(struct intel_vgpu *vgpu)
{
struct intel_gvt_workload_scheduler *scheduler =
diff --git a/drivers/gpu/drm/i915/gvt/sched_policy.h b/drivers/gpu/drm/i915/gvt/sched_policy.h
index ba00a5f7455fd57688f0c3292951e19b7ad66ec1..7b59e3e88b8b869776c375181e7aceef884a95be 100644
--- a/drivers/gpu/drm/i915/gvt/sched_policy.h
+++ b/drivers/gpu/drm/i915/gvt/sched_policy.h
@@ -57,4 +57,6 @@ void intel_vgpu_start_schedule(struct intel_vgpu *vgpu);
void intel_vgpu_stop_schedule(struct intel_vgpu *vgpu);
+void intel_gvt_kick_schedule(struct intel_gvt *gvt);
+
#endif
diff --git a/drivers/gpu/drm/i915/gvt/scheduler.c b/drivers/gpu/drm/i915/gvt/scheduler.c
index a742b364c2c3e2784d554762659fa57a8a1e42b0..ab9a500ba3e90a9dcccf4a86a8ccada432ac973b 100644
--- a/drivers/gpu/drm/i915/gvt/scheduler.c
+++ b/drivers/gpu/drm/i915/gvt/scheduler.c
@@ -188,10 +188,12 @@ static int shadow_context_status_change(struct notifier_block *nb,
atomic_set(&workload->shadow_ctx_active, 1);
break;
case INTEL_CONTEXT_SCHEDULE_OUT:
- case INTEL_CONTEXT_SCHEDULE_PREEMPTED:
save_ring_hw_state(workload->vgpu, ring_id);
atomic_set(&workload->shadow_ctx_active, 0);
break;
+ case INTEL_CONTEXT_SCHEDULE_PREEMPTED:
+ save_ring_hw_state(workload->vgpu, ring_id);
+ break;
default:
WARN_ON(1);
return NOTIFY_OK;
@@ -245,7 +247,7 @@ static int copy_workload_to_ring_buffer(struct intel_vgpu_workload *workload)
return 0;
}
-void release_shadow_wa_ctx(struct intel_shadow_wa_ctx *wa_ctx)
+static void release_shadow_wa_ctx(struct intel_shadow_wa_ctx *wa_ctx)
{
if (!wa_ctx->indirect_ctx.obj)
return;
@@ -1036,6 +1038,9 @@ int intel_vgpu_setup_submission(struct intel_vgpu *vgpu)
if (IS_ERR(s->shadow_ctx))
return PTR_ERR(s->shadow_ctx);
+ if (HAS_LOGICAL_RING_PREEMPTION(vgpu->gvt->dev_priv))
+ s->shadow_ctx->priority = INT_MAX;
+
bitmap_zero(s->shadow_ctx_desc_updated, I915_NUM_ENGINES);
s->workloads = kmem_cache_create("gvt-g_vgpu_workload",
@@ -1328,3 +1333,15 @@ intel_vgpu_create_workload(struct intel_vgpu *vgpu, int ring_id,
return workload;
}
+
+/**
+ * intel_vgpu_queue_workload - Qeue a vGPU workload
+ * @workload: the workload to queue in
+ */
+void intel_vgpu_queue_workload(struct intel_vgpu_workload *workload)
+{
+ list_add_tail(&workload->list,
+ workload_q_head(workload->vgpu, workload->ring_id));
+ intel_gvt_kick_schedule(workload->vgpu->gvt);
+ wake_up(&workload->vgpu->gvt->scheduler.waitq[workload->ring_id]);
+}
diff --git a/drivers/gpu/drm/i915/gvt/scheduler.h b/drivers/gpu/drm/i915/gvt/scheduler.h
index e4a9f9acd4a953a2b747588203de7985282efa04..3de77dfa7c59f27d6daaa1249cb81f5e803c7561 100644
--- a/drivers/gpu/drm/i915/gvt/scheduler.h
+++ b/drivers/gpu/drm/i915/gvt/scheduler.h
@@ -125,12 +125,7 @@ struct intel_vgpu_shadow_bb {
#define workload_q_head(vgpu, ring_id) \
(&(vgpu->submission.workload_q_head[ring_id]))
-#define queue_workload(workload) do { \
- list_add_tail(&workload->list, \
- workload_q_head(workload->vgpu, workload->ring_id)); \
- wake_up(&workload->vgpu->gvt-> \
- scheduler.waitq[workload->ring_id]); \
-} while (0)
+void intel_vgpu_queue_workload(struct intel_vgpu_workload *workload);
int intel_gvt_init_workload_scheduler(struct intel_gvt *gvt);
diff --git a/drivers/gpu/drm/i915/gvt/vgpu.c b/drivers/gpu/drm/i915/gvt/vgpu.c
index c6b82d1ba7dee0b2f09fc057bde14c248372484d..39926176fbebd54cc350d5322720e53911a478e0 100644
--- a/drivers/gpu/drm/i915/gvt/vgpu.c
+++ b/drivers/gpu/drm/i915/gvt/vgpu.c
@@ -236,6 +236,7 @@ void intel_gvt_deactivate_vgpu(struct intel_vgpu *vgpu)
}
intel_vgpu_stop_schedule(vgpu);
+ intel_vgpu_dmabuf_cleanup(vgpu);
mutex_unlock(&gvt->lock);
}
@@ -265,6 +266,7 @@ void intel_gvt_destroy_vgpu(struct intel_vgpu *vgpu)
intel_gvt_hypervisor_detach_vgpu(vgpu);
intel_vgpu_free_resource(vgpu);
intel_vgpu_clean_mmio(vgpu);
+ intel_vgpu_dmabuf_cleanup(vgpu);
vfree(vgpu);
intel_gvt_update_vgpu_types(gvt);
@@ -349,7 +351,8 @@ static struct intel_vgpu *__intel_gvt_create_vgpu(struct intel_gvt *gvt,
vgpu->handle = param->handle;
vgpu->gvt = gvt;
vgpu->sched_ctl.weight = param->weight;
-
+ INIT_LIST_HEAD(&vgpu->dmabuf_obj_list_head);
+ idr_init(&vgpu->object_idr);
intel_vgpu_init_cfg_space(vgpu, param->primary);
ret = intel_vgpu_init_mmio(vgpu);
@@ -370,10 +373,14 @@ static struct intel_vgpu *__intel_gvt_create_vgpu(struct intel_gvt *gvt,
if (ret)
goto out_detach_hypervisor_vgpu;
- ret = intel_vgpu_init_display(vgpu, param->resolution);
+ ret = intel_vgpu_init_opregion(vgpu);
if (ret)
goto out_clean_gtt;
+ ret = intel_vgpu_init_display(vgpu, param->resolution);
+ if (ret)
+ goto out_clean_opregion;
+
ret = intel_vgpu_setup_submission(vgpu);
if (ret)
goto out_clean_display;
@@ -386,6 +393,10 @@ static struct intel_vgpu *__intel_gvt_create_vgpu(struct intel_gvt *gvt,
if (ret)
goto out_clean_sched_policy;
+ ret = intel_gvt_hypervisor_set_opregion(vgpu);
+ if (ret)
+ goto out_clean_sched_policy;
+
mutex_unlock(&gvt->lock);
return vgpu;
@@ -396,6 +407,8 @@ static struct intel_vgpu *__intel_gvt_create_vgpu(struct intel_gvt *gvt,
intel_vgpu_clean_submission(vgpu);
out_clean_display:
intel_vgpu_clean_display(vgpu);
+out_clean_opregion:
+ intel_vgpu_clean_opregion(vgpu);
out_clean_gtt:
intel_vgpu_clean_gtt(vgpu);
out_detach_hypervisor_vgpu:
diff --git a/drivers/gpu/drm/i915/i915_gem_object.h b/drivers/gpu/drm/i915/i915_gem_object.h
index 19fb28c177d8040ace1da091a009b518a3015930..05e89e1c0a088b6cc2ca9e28f0d4ddd606726f97 100644
--- a/drivers/gpu/drm/i915/i915_gem_object.h
+++ b/drivers/gpu/drm/i915/i915_gem_object.h
@@ -261,6 +261,8 @@ struct drm_i915_gem_object {
} userptr;
unsigned long scratch;
+
+ void *gvt_info;
};
/** for phys allocated objects */
diff --git a/include/uapi/linux/vfio.h b/include/uapi/linux/vfio.h
index ae461050661afc4ea86413cf2c3e384281ad35f1..5c1cca2ba04d63db11d0d29de5b9d2697b905b54 100644
--- a/include/uapi/linux/vfio.h
+++ b/include/uapi/linux/vfio.h
@@ -502,6 +502,68 @@ struct vfio_pci_hot_reset {
#define VFIO_DEVICE_PCI_HOT_RESET _IO(VFIO_TYPE, VFIO_BASE + 13)
+/**
+ * VFIO_DEVICE_QUERY_GFX_PLANE - _IOW(VFIO_TYPE, VFIO_BASE + 14,
+ * struct vfio_device_query_gfx_plane)
+ *
+ * Set the drm_plane_type and flags, then retrieve the gfx plane info.
+ *
+ * flags supported:
+ * - VFIO_GFX_PLANE_TYPE_PROBE and VFIO_GFX_PLANE_TYPE_DMABUF are set
+ * to ask if the mdev supports dma-buf. 0 on support, -EINVAL on no
+ * support for dma-buf.
+ * - VFIO_GFX_PLANE_TYPE_PROBE and VFIO_GFX_PLANE_TYPE_REGION are set
+ * to ask if the mdev supports region. 0 on support, -EINVAL on no
+ * support for region.
+ * - VFIO_GFX_PLANE_TYPE_DMABUF or VFIO_GFX_PLANE_TYPE_REGION is set
+ * with each call to query the plane info.
+ * - Others are invalid and return -EINVAL.
+ *
+ * Note:
+ * 1. Plane could be disabled by guest. In that case, success will be
+ * returned with zero-initialized drm_format, size, width and height
+ * fields.
+ * 2. x_hot/y_hot is set to 0xFFFFFFFF if no hotspot information available
+ *
+ * Return: 0 on success, -errno on other failure.
+ */
+struct vfio_device_gfx_plane_info {
+ __u32 argsz;
+ __u32 flags;
+#define VFIO_GFX_PLANE_TYPE_PROBE (1 << 0)
+#define VFIO_GFX_PLANE_TYPE_DMABUF (1 << 1)
+#define VFIO_GFX_PLANE_TYPE_REGION (1 << 2)
+ /* in */
+ __u32 drm_plane_type; /* type of plane: DRM_PLANE_TYPE_* */
+ /* out */
+ __u32 drm_format; /* drm format of plane */
+ __u64 drm_format_mod; /* tiled mode */
+ __u32 width; /* width of plane */
+ __u32 height; /* height of plane */
+ __u32 stride; /* stride of plane */
+ __u32 size; /* size of plane in bytes, align on page*/
+ __u32 x_pos; /* horizontal position of cursor plane */
+ __u32 y_pos; /* vertical position of cursor plane*/
+ __u32 x_hot; /* horizontal position of cursor hotspot */
+ __u32 y_hot; /* vertical position of cursor hotspot */
+ union {
+ __u32 region_index; /* region index */
+ __u32 dmabuf_id; /* dma-buf id */
+ };
+};
+
+#define VFIO_DEVICE_QUERY_GFX_PLANE _IO(VFIO_TYPE, VFIO_BASE + 14)
+
+/**
+ * VFIO_DEVICE_GET_GFX_DMABUF - _IOW(VFIO_TYPE, VFIO_BASE + 15, __u32)
+ *
+ * Return a new dma-buf file descriptor for an exposed guest framebuffer
+ * described by the provided dmabuf_id. The dmabuf_id is returned from VFIO_
+ * DEVICE_QUERY_GFX_PLANE as a token of the exposed guest framebuffer.
+ */
+
+#define VFIO_DEVICE_GET_GFX_DMABUF _IO(VFIO_TYPE, VFIO_BASE + 15)
+
/* -------- API for Type1 VFIO IOMMU -------- */
/**