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From 2065c7a1c75f56c8ea23952fd4de4b031a96552c Mon Sep 17 00:00:00 2001
From: Tarun Gupta <tgupta@redhat.com>
Date: Wed, 20 Jun 2018 18:54:21 +0200
Subject: [PATCH 13/17] linux-headers: Update to include region based display
 support.

RH-Author: Tarun Gupta <tgupta@redhat.com>
Message-id: <1529520865-18127-8-git-send-email-tgupta@redhat.com>
Patchwork-id: 80913
O-Subject: [RHEL7.6 qemu-kvm PATCH v3 07/11] linux-headers: Update to include region based display support.
Bugzilla: 1555246
RH-Acked-by: Alex Williamson <alex.williamson@redhat.com>
RH-Acked-by: Gerd Hoffmann <kraxel@redhat.com>
RH-Acked-by: Miroslav Rezanina <mrezanin@redhat.com>

update Linux headers to 4.16-rc5

Note that VIRTIO_GPU_CAPSET_VIRGL2 was added manually so it has to
be added manually after re-running scripts/update-linux-headers.sh.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
(cherry picked from 9f2d175db5c29b23bc1a560041043d0b10ee57dc)

Conflict: Only cherry-picking macros for adding region based display
support

Signed-off-by: Miroslav Rezanina <mrezanin@redhat.com>
---
 linux-headers/linux/vfio.h | 52 ++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 52 insertions(+)

diff --git a/linux-headers/linux/vfio.h b/linux-headers/linux/vfio.h
index 8995a34..0dab0cc 100644
--- a/linux-headers/linux/vfio.h
+++ b/linux-headers/linux/vfio.h
@@ -414,6 +414,58 @@ 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)
+
 /* -------- API for Type1 VFIO IOMMU -------- */
 
 /**
-- 
1.8.3.1