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minigbm: virtgpu: add resource create blob function

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Some SW intensive apps could benefit from this.

This should decrease power consumption when playing a Youtube
1080p60fps video by 10%.

BUG=chromium:924405
TEST=mmap_test

Change-Id: I80bb08a95b7387eb8af58e1f0d30beb695fc3e74
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/minigbm/+/1804914
Tested-by: Gurchetan Singh <gurchetansingh@chromium.org>
Reviewed-by: Lingfeng Yang <lfy@google.com>
Reviewed-by: Jason Macnak <natsu@google.com>
Reviewed-by: Gurchetan Singh <gurchetansingh@chromium.org>
Commit-Queue: Gurchetan Singh <gurchetansingh@chromium.org>
This commit is contained in:
Gurchetan Singh 2019-09-13 17:49:20 -07:00 • committed by Commit Bot
parent 9f3110b90f
commit 0ee06fb622
2 changed files with 125 additions and 4 deletions
Download patch file Download diff file Expand all files Collapse all files

41
external/virtgpu_drm.h vendored
View file

@ -46,6 +46,7 @@ extern "C" {
#define DRM_VIRTGPU_TRANSFER_TO_HOST 0x07
#define DRM_VIRTGPU_WAIT 0x08
#define DRM_VIRTGPU_GET_CAPS 0x09
#define DRM_VIRTGPU_RESOURCE_CREATE_BLOB 0x0a
#define VIRTGPU_EXECBUF_FENCE_FD_IN 0x01
#define VIRTGPU_EXECBUF_FENCE_FD_OUT 0x02
@ -71,6 +72,9 @@ struct drm_virtgpu_execbuffer {
#define VIRTGPU_PARAM_3D_FEATURES 1 /* do we have 3D features in the hw */
#define VIRTGPU_PARAM_CAPSET_QUERY_FIX 2 /* do we have the capset fix */
#define VIRTGPU_PARAM_RESOURCE_BLOB 3 /* DRM_VIRTGPU_RESOURCE_CREATE_BLOB */
#define VIRTGPU_PARAM_HOST_VISIBLE 4 /* Host blob resources are mappable */
#define VIRTGPU_PARAM_CROSS_DEVICE 5 /* Cross virtio-device resource sharing */
struct drm_virtgpu_getparam {
__u64 param;
@ -101,9 +105,9 @@ struct drm_virtgpu_resource_info {
__u32 res_handle;
__u32 size;
union {
__u32 stride;
__u32 blob_mem;
__u32 strides[4]; /* strides[0] is accessible with stride. */
};
};
__u32 num_planes;
__u32 offsets[4];
__u64 format_modifier;
@ -123,6 +127,8 @@ struct drm_virtgpu_3d_transfer_to_host {
struct drm_virtgpu_3d_box box;
__u32 level;
__u32 offset;
__u32 stride;
__u32 layer_stride;
};
struct drm_virtgpu_3d_transfer_from_host {
@ -130,6 +136,8 @@ struct drm_virtgpu_3d_transfer_from_host {
struct drm_virtgpu_3d_box box;
__u32 level;
__u32 offset;
__u32 stride;
__u32 layer_stride;
};
#define VIRTGPU_WAIT_NOWAIT 1 /* like it */
@ -146,6 +154,31 @@ struct drm_virtgpu_get_caps {
__u32 pad;
};
struct drm_virtgpu_resource_create_blob {
#define VIRTGPU_BLOB_MEM_GUEST 0x0001
#define VIRTGPU_BLOB_MEM_HOST3D 0x0002
#define VIRTGPU_BLOB_MEM_HOST3D_GUEST 0x0003
#define VIRTGPU_BLOB_FLAG_USE_MAPPABLE 0x0001
#define VIRTGPU_BLOB_FLAG_USE_SHAREABLE 0x0002
#define VIRTGPU_BLOB_FLAG_USE_CROSS_DEVICE 0x0004
/* zero is invalid blob_mem */
__u32 blob_mem;
__u32 blob_flags;
__u32 bo_handle;
__u32 res_handle;
__u64 size;
/*
* for 3D contexts with VIRTGPU_BLOB_MEM_HOST3D_GUEST and
* VIRTGPU_BLOB_MEM_HOST3D otherwise, must be zero.
*/
__u32 pad;
__u32 cmd_size;
__u64 cmd;
__u64 blob_id;
};
#define DRM_IOCTL_VIRTGPU_MAP \
DRM_IOWR(DRM_COMMAND_BASE + DRM_VIRTGPU_MAP, struct drm_virtgpu_map)
@ -181,6 +214,10 @@ struct drm_virtgpu_get_caps {
DRM_IOWR(DRM_COMMAND_BASE + DRM_VIRTGPU_GET_CAPS, \
struct drm_virtgpu_get_caps)
#define DRM_IOCTL_VIRTGPU_RESOURCE_CREATE_BLOB \
DRM_IOWR(DRM_COMMAND_BASE + DRM_VIRTGPU_RESOURCE_CREATE_BLOB, \
struct drm_virtgpu_resource_create_blob)
#if defined(__cplusplus)
}
#endif