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Re: [PATCH v6 05/11] virtio-gpu: Introduce virgl_gpu_resource structure
From: |
Marc-André Lureau |
Subject: |
Re: [PATCH v6 05/11] virtio-gpu: Introduce virgl_gpu_resource structure |
Date: |
Tue, 2 Jan 2024 15:52:04 +0400 |
Hi
On Tue, Dec 19, 2023 at 11:55 AM Huang Rui <ray.huang@amd.com> wrote:
>
> Introduce a new virgl_gpu_resource data structure and helper functions
> for virgl. It's used to add new member which is specific for virgl in
> following patches of blob memory support.
>
> Signed-off-by: Huang Rui <ray.huang@amd.com>
> ---
>
> New patch:
> - Introduce new struct virgl_gpu_resource to store virgl specific members.
> - Move resource initialization from path "virtio-gpu: Resource UUID" here.
> - Remove error handling of g_new0, because glib will abort() on OOM.
> - Set iov and iov_cnt in struct virtio_gpu_simple_resource for all types
> of resources.
>
> hw/display/virtio-gpu-virgl.c | 84 ++++++++++++++++++++++++++---------
> 1 file changed, 64 insertions(+), 20 deletions(-)
>
> diff --git a/hw/display/virtio-gpu-virgl.c b/hw/display/virtio-gpu-virgl.c
> index 5bbc8071b2..faab374336 100644
> --- a/hw/display/virtio-gpu-virgl.c
> +++ b/hw/display/virtio-gpu-virgl.c
> @@ -22,6 +22,23 @@
>
> #include <virglrenderer.h>
>
> +struct virgl_gpu_resource {
> + struct virtio_gpu_simple_resource res;
> +};
> +
> +static struct virgl_gpu_resource *
> +virgl_gpu_find_resource(VirtIOGPU *g, uint32_t resource_id)
> +{
> + struct virtio_gpu_simple_resource *res;
> +
> + res = virtio_gpu_find_resource(g, resource_id);
> + if (!res) {
> + return NULL;
> + }
> +
> + return container_of(res, struct virgl_gpu_resource, res);
> +}
> +
> #if VIRGL_RENDERER_CALLBACKS_VERSION >= 4
> static void *
> virgl_get_egl_display(G_GNUC_UNUSED void *cookie)
> @@ -35,11 +52,19 @@ static void virgl_cmd_create_resource_2d(VirtIOGPU *g,
> {
> struct virtio_gpu_resource_create_2d c2d;
> struct virgl_renderer_resource_create_args args;
> + struct virgl_gpu_resource *vres;
>
> VIRTIO_GPU_FILL_CMD(c2d);
> trace_virtio_gpu_cmd_res_create_2d(c2d.resource_id, c2d.format,
> c2d.width, c2d.height);
>
It should check the resource doesn't already exist (similar to 2d code)
> + vres = g_new0(struct virgl_gpu_resource, 1);
> + vres->res.width = c2d.width;
> + vres->res.height = c2d.height;
> + vres->res.format = c2d.format;
> + vres->res.resource_id = c2d.resource_id;
> + QTAILQ_INSERT_HEAD(&g->reslist, &vres->res, next);
> +
> args.handle = c2d.resource_id;
> args.target = 2;
> args.format = c2d.format;
> @@ -59,11 +84,19 @@ static void virgl_cmd_create_resource_3d(VirtIOGPU *g,
> {
> struct virtio_gpu_resource_create_3d c3d;
> struct virgl_renderer_resource_create_args args;
> + struct virgl_gpu_resource *vres;
>
> VIRTIO_GPU_FILL_CMD(c3d);
> trace_virtio_gpu_cmd_res_create_3d(c3d.resource_id, c3d.format,
> c3d.width, c3d.height, c3d.depth);
>
same
> + vres = g_new0(struct virgl_gpu_resource, 1);
> + vres->res.width = c3d.width;
> + vres->res.height = c3d.height;
> + vres->res.format = c3d.format;
> + vres->res.resource_id = c3d.resource_id;
> + QTAILQ_INSERT_HEAD(&g->reslist, &vres->res, next);
> +
> args.handle = c3d.resource_id;
> args.target = c3d.target;
> args.format = c3d.format;
> @@ -82,19 +115,23 @@ static void virgl_cmd_resource_unref(VirtIOGPU *g,
> struct virtio_gpu_ctrl_command *cmd)
> {
> struct virtio_gpu_resource_unref unref;
> - struct iovec *res_iovs = NULL;
> - int num_iovs = 0;
> + struct virgl_gpu_resource *vres;
>
> VIRTIO_GPU_FILL_CMD(unref);
> trace_virtio_gpu_cmd_res_unref(unref.resource_id);
>
> - virgl_renderer_resource_detach_iov(unref.resource_id,
> - &res_iovs,
> - &num_iovs);
> - if (res_iovs != NULL && num_iovs != 0) {
> - virtio_gpu_cleanup_mapping_iov(g, res_iovs, num_iovs);
> + vres = virgl_gpu_find_resource(g, unref.resource_id);
> + if (!vres) {
> + cmd->error = VIRTIO_GPU_RESP_ERR_INVALID_RESOURCE_ID;
> + return;
> }
> +
> + virgl_renderer_resource_detach_iov(unref.resource_id, NULL, NULL);
> virgl_renderer_resource_unref(unref.resource_id);
> +
> + QTAILQ_REMOVE(&g->reslist, &vres->res, next);
> + virtio_gpu_cleanup_mapping(g, &vres->res);
> + g_free(vres);
> }
>
> static void virgl_cmd_context_create(VirtIOGPU *g,
> @@ -310,44 +347,51 @@ static void virgl_resource_attach_backing(VirtIOGPU *g,
> struct virtio_gpu_ctrl_command
> *cmd)
> {
> struct virtio_gpu_resource_attach_backing att_rb;
> - struct iovec *res_iovs;
> - uint32_t res_niov;
> + struct virgl_gpu_resource *vres;
> int ret;
>
> VIRTIO_GPU_FILL_CMD(att_rb);
> trace_virtio_gpu_cmd_res_back_attach(att_rb.resource_id);
>
> + vres = virgl_gpu_find_resource(g, att_rb.resource_id);
> + if (!vres) {
> + cmd->error = VIRTIO_GPU_RESP_ERR_INVALID_RESOURCE_ID;
> + return;
> + }
> +
> ret = virtio_gpu_create_mapping_iov(g, att_rb.nr_entries, sizeof(att_rb),
> - cmd, NULL, &res_iovs, &res_niov);
> + cmd, NULL, &vres->res.iov,
> + &vres->res.iov_cnt);
> if (ret != 0) {
> cmd->error = VIRTIO_GPU_RESP_ERR_UNSPEC;
> return;
> }
>
> ret = virgl_renderer_resource_attach_iov(att_rb.resource_id,
> - res_iovs, res_niov);
> + vres->res.iov,
> vres->res.iov_cnt);
>
> - if (ret != 0)
> - virtio_gpu_cleanup_mapping_iov(g, res_iovs, res_niov);
> + if (ret != 0) {
> + virtio_gpu_cleanup_mapping(g, &vres->res);
> + }
> }
>
> static void virgl_resource_detach_backing(VirtIOGPU *g,
> struct virtio_gpu_ctrl_command
> *cmd)
> {
> struct virtio_gpu_resource_detach_backing detach_rb;
> - struct iovec *res_iovs = NULL;
> - int num_iovs = 0;
> + struct virgl_gpu_resource *vres;
>
> VIRTIO_GPU_FILL_CMD(detach_rb);
> trace_virtio_gpu_cmd_res_back_detach(detach_rb.resource_id);
>
> - virgl_renderer_resource_detach_iov(detach_rb.resource_id,
> - &res_iovs,
> - &num_iovs);
> - if (res_iovs == NULL || num_iovs == 0) {
> + vres = virgl_gpu_find_resource(g, detach_rb.resource_id);
> + if (!vres) {
> + cmd->error = VIRTIO_GPU_RESP_ERR_INVALID_RESOURCE_ID;
> return;
> }
> - virtio_gpu_cleanup_mapping_iov(g, res_iovs, num_iovs);
> +
> + virgl_renderer_resource_detach_iov(detach_rb.resource_id, NULL, NULL);
> + virtio_gpu_cleanup_mapping(g, &vres->res);
> }
>
>
> --
> 2.25.1
>
>
--
Marc-André Lureau
- Re: [PATCH v6 05/11] virtio-gpu: Introduce virgl_gpu_resource structure,
Marc-André Lureau <=