#include <stdio.h>
#include <string.h>
#include <sys/mman.h>
-#include <virtgpu_drm.h>
#include <xf86drm.h>
#include "drv_priv.h"
#include "helpers.h"
#include "util.h"
#include "virgl_hw.h"
+#include "virtgpu_drm.h"
#ifndef PAGE_SIZE
#define PAGE_SIZE 0x1000
#define MESA_LLVMPIPE_TILE_ORDER 6
#define MESA_LLVMPIPE_TILE_SIZE (1 << MESA_LLVMPIPE_TILE_ORDER)
+struct feature {
+ uint64_t feature;
+ const char *name;
+ uint32_t enabled;
+};
+
+enum feature_id {
+ feat_3d,
+ feat_capset_fix,
+ feat_max,
+};
+
+#define FEATURE(x) \
+ (struct feature) \
+ { \
+ x, #x, 0 \
+ }
+
+static struct feature features[] = { FEATURE(VIRTGPU_PARAM_3D_FEATURES),
+ FEATURE(VIRTGPU_PARAM_CAPSET_QUERY_FIX) };
+
static const uint32_t render_target_formats[] = { DRM_FORMAT_ABGR8888, DRM_FORMAT_ARGB8888,
DRM_FORMAT_RGB565, DRM_FORMAT_XBGR8888,
DRM_FORMAT_XRGB8888 };
DRM_FORMAT_YVU420_ANDROID };
struct virtio_gpu_priv {
- int has_3d;
int caps_is_v2;
union virgl_caps caps;
};
{
struct virtio_gpu_priv *priv = (struct virtio_gpu_priv *)drv->priv;
- if (priv->has_3d && priv->caps.max_version >= 1) {
+ if (features[feat_3d].enabled && priv->caps.max_version >= 1) {
if ((use_flags & BO_USE_RENDERING) &&
!virtio_gpu_supports_format(&priv->caps.v1.render, drm_format)) {
drv_log("Skipping unsupported render format: %d\n", drm_format);
{
int ret;
struct drm_virtgpu_get_caps cap_args;
- struct drm_virtgpu_getparam param_args;
- uint32_t can_query_v2 = 0;
-
- memset(¶m_args, 0, sizeof(param_args));
- param_args.param = VIRTGPU_PARAM_CAPSET_QUERY_FIX;
- param_args.value = (uint64_t)(uintptr_t)&can_query_v2;
- ret = drmIoctl(drv->fd, DRM_IOCTL_VIRTGPU_GETPARAM, ¶m_args);
- if (ret) {
- drv_log("DRM_IOCTL_VIRTGPU_GETPARAM failed with %s\n", strerror(errno));
- }
*caps_is_v2 = 0;
memset(&cap_args, 0, sizeof(cap_args));
cap_args.addr = (unsigned long long)caps;
- if (can_query_v2) {
+ if (features[feat_capset_fix].enabled) {
*caps_is_v2 = 1;
cap_args.cap_set_id = 2;
cap_args.size = sizeof(union virgl_caps);
{
int ret;
struct virtio_gpu_priv *priv;
- struct drm_virtgpu_getparam args;
priv = calloc(1, sizeof(*priv));
drv->priv = priv;
-
- memset(&args, 0, sizeof(args));
- args.param = VIRTGPU_PARAM_3D_FEATURES;
- args.value = (uint64_t)(uintptr_t)&priv->has_3d;
- ret = drmIoctl(drv->fd, DRM_IOCTL_VIRTGPU_GETPARAM, &args);
- if (ret) {
- drv_log("virtio 3D acceleration is not available\n");
- /* Be paranoid */
- priv->has_3d = 0;
+ for (uint32_t i = 0; i < ARRAY_SIZE(features); i++) {
+ struct drm_virtgpu_getparam params = { 0 };
+
+ params.param = features[i].feature;
+ params.value = (uint64_t)(uintptr_t)&features[i].enabled;
+ ret = drmIoctl(drv->fd, DRM_IOCTL_VIRTGPU_GETPARAM, ¶ms);
+ if (ret)
+ drv_log("DRM_IOCTL_VIRTGPU_GET_PARAM failed with %s\n", strerror(errno));
}
- if (priv->has_3d) {
+ if (features[feat_3d].enabled) {
virtio_gpu_get_caps(drv, &priv->caps, &priv->caps_is_v2);
/* This doesn't mean host can scanout everything, it just means host
BO_USE_CAMERA_READ | BO_USE_CAMERA_WRITE | BO_USE_HW_VIDEO_DECODER |
BO_USE_HW_VIDEO_ENCODER);
drv_modify_combination(drv, DRM_FORMAT_R8, &LINEAR_METADATA,
- BO_USE_CAMERA_READ | BO_USE_CAMERA_WRITE);
+ BO_USE_CAMERA_READ | BO_USE_CAMERA_WRITE | BO_USE_HW_VIDEO_DECODER);
return drv_modify_linear_combinations(drv);
}
static int virtio_gpu_bo_create(struct bo *bo, uint32_t width, uint32_t height, uint32_t format,
uint64_t use_flags)
{
- struct virtio_gpu_priv *priv = (struct virtio_gpu_priv *)bo->drv->priv;
- if (priv->has_3d)
+ if (features[feat_3d].enabled)
return virtio_virgl_bo_create(bo, width, height, format, use_flags);
else
return virtio_dumb_bo_create(bo, width, height, format, use_flags);
static int virtio_gpu_bo_destroy(struct bo *bo)
{
- struct virtio_gpu_priv *priv = (struct virtio_gpu_priv *)bo->drv->priv;
- if (priv->has_3d)
+ if (features[feat_3d].enabled)
return drv_gem_bo_destroy(bo);
else
return drv_dumb_bo_destroy(bo);
static void *virtio_gpu_bo_map(struct bo *bo, struct vma *vma, size_t plane, uint32_t map_flags)
{
- struct virtio_gpu_priv *priv = (struct virtio_gpu_priv *)bo->drv->priv;
- if (priv->has_3d)
+ if (features[feat_3d].enabled)
return virtio_virgl_bo_map(bo, vma, plane, map_flags);
else
return drv_dumb_bo_map(bo, vma, plane, map_flags);
{
int ret;
struct drm_virtgpu_3d_transfer_from_host xfer;
- struct virtio_gpu_priv *priv = (struct virtio_gpu_priv *)bo->drv->priv;
struct drm_virtgpu_3d_wait waitcmd;
- if (!priv->has_3d)
+ if (!features[feat_3d].enabled)
return 0;
// Invalidate is only necessary if the host writes to the buffer.
{
int ret;
struct drm_virtgpu_3d_transfer_to_host xfer;
- struct virtio_gpu_priv *priv = (struct virtio_gpu_priv *)bo->drv->priv;
struct drm_virtgpu_3d_wait waitcmd;
- if (!priv->has_3d)
+ if (!features[feat_3d].enabled)
return 0;
if (!(mapping->vma->map_flags & BO_MAP_WRITE))
static uint32_t virtio_gpu_resolve_format(struct driver *drv, uint32_t format, uint64_t use_flags)
{
- struct virtio_gpu_priv *priv = (struct virtio_gpu_priv *)drv->priv;
switch (format) {
case DRM_FORMAT_FLEX_IMPLEMENTATION_DEFINED:
* All of our host drivers prefer NV12 as their flexible media format.
* If that changes, this will need to be modified.
*/
- if (priv->has_3d)
+ if (features[feat_3d].enabled)
return DRM_FORMAT_NV12;
else
return DRM_FORMAT_YVU420;
}
}
+static int virtio_gpu_resource_info(struct bo *bo, uint32_t strides[DRV_MAX_PLANES],
+ uint32_t offsets[DRV_MAX_PLANES])
+{
+ int ret;
+ struct drm_virtgpu_resource_info res_info;
+
+ if (!features[feat_3d].enabled)
+ return 0;
+
+ memset(&res_info, 0, sizeof(res_info));
+ res_info.bo_handle = bo->handles[0].u32;
+ ret = drmIoctl(bo->drv->fd, DRM_IOCTL_VIRTGPU_RESOURCE_INFO, &res_info);
+ if (ret) {
+ drv_log("DRM_IOCTL_VIRTGPU_RESOURCE_INFO failed with %s\n", strerror(errno));
+ return ret;
+ }
+
+ for (uint32_t plane = 0; plane < bo->meta.num_planes; plane++) {
+ /*
+ * Currently, kernel v4.14 (Betty) doesn't have the extended resource info
+ * ioctl.
+ */
+ if (res_info.strides[plane]) {
+ strides[plane] = res_info.strides[plane];
+ offsets[plane] = res_info.offsets[plane];
+ }
+ }
+
+ return 0;
+}
+
const struct backend backend_virtio_gpu = {
.name = "virtio_gpu",
.init = virtio_gpu_init,
.bo_invalidate = virtio_gpu_bo_invalidate,
.bo_flush = virtio_gpu_bo_flush,
.resolve_format = virtio_gpu_resolve_format,
+ .resource_info = virtio_gpu_resource_info,
};
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