From 11939f6fa254c9d657f487d93db6eaa6cee4de9d Mon Sep 17 00:00:00 2001
From: Gurchetan Singh <gurchetansingh@chromium.org>
Date: Fri, 30 Nov 2018 17:29:16 -0800
Subject: [PATCH] virgl: make virgl_buffers use resource helpers

We can reuse the helpers we created.

Reviewed-by: Elie Tournier <elie.tournier@collabora.com>
---
 src/gallium/drivers/virgl/virgl_buffer.c   | 30 ++++++++--------------
 src/gallium/drivers/virgl/virgl_resource.h |  1 +
 2 files changed, 11 insertions(+), 20 deletions(-)

diff --git a/src/gallium/drivers/virgl/virgl_buffer.c b/src/gallium/drivers/virgl/virgl_buffer.c
index d810e9e9864..54a82964691 100644
--- a/src/gallium/drivers/virgl/virgl_buffer.c
+++ b/src/gallium/drivers/virgl/virgl_buffer.c
@@ -51,7 +51,6 @@ static void *virgl_buffer_transfer_map(struct pipe_context *ctx,
    struct virgl_transfer *trans;
    void *ptr;
    bool readback;
-   uint32_t offset;
    bool doflushwait = false;
 
    if ((usage & PIPE_TRANSFER_READ) && (vbuf->on_list == TRUE))
@@ -62,22 +61,13 @@ static void *virgl_buffer_transfer_map(struct pipe_context *ctx,
    if (doflushwait)
       ctx->flush(ctx, NULL, 0);
 
-   trans = slab_alloc(&vctx->transfer_pool);
-   if (!trans)
-      return NULL;
-
-   trans->base.resource = resource;
-   trans->base.level = level;
-   trans->base.usage = usage;
-   trans->base.box = *box;
-   trans->base.stride = 0;
-   trans->base.layer_stride = 0;
-
-   offset = box->x;
+   trans = virgl_resource_create_transfer(ctx, resource, &vbuf->metadata, level,
+                                          usage, box);
 
    readback = virgl_res_needs_readback(vctx, &vbuf->base, usage);
    if (readback)
-      vs->vws->transfer_get(vs->vws, vbuf->base.hw_res, box, trans->base.stride, trans->base.layer_stride, offset, level);
+      vs->vws->transfer_get(vs->vws, vbuf->base.hw_res, box, trans->base.stride,
+                            trans->l_stride, trans->offset, level);
 
    if (!(usage & PIPE_TRANSFER_UNSYNCHRONIZED))
       doflushwait = true;
@@ -90,9 +80,7 @@ static void *virgl_buffer_transfer_map(struct pipe_context *ctx,
       return NULL;
    }
 
-   trans->offset = offset;
    *transfer = &trans->base;
-
    return ptr + trans->offset;
 }
 
@@ -108,7 +96,7 @@ static void virgl_buffer_transfer_unmap(struct pipe_context *ctx,
          struct virgl_screen *vs = virgl_screen(ctx->screen);
          vctx->num_transfers++;
          vs->vws->transfer_put(vs->vws, vbuf->base.hw_res,
-                               &transfer->box, trans->base.stride, trans->base.layer_stride, trans->offset, transfer->level);
+                               &transfer->box, trans->base.stride, trans->l_stride, trans->offset, transfer->level);
 
       }
    }
@@ -150,7 +138,6 @@ struct pipe_resource *virgl_buffer_create(struct virgl_screen *vs,
                                           const struct pipe_resource *template)
 {
    struct virgl_buffer *buf;
-   uint32_t size;
    uint32_t vbind;
    buf = CALLOC_STRUCT(virgl_buffer);
    buf->base.clean = TRUE;
@@ -159,11 +146,14 @@ struct pipe_resource *virgl_buffer_create(struct virgl_screen *vs,
    buf->base.u.vtbl = &virgl_buffer_vtbl;
    pipe_reference_init(&buf->base.u.b.reference, 1);
    util_range_init(&buf->valid_buffer_range);
+   virgl_resource_layout(&buf->base.u.b, &buf->metadata);
 
    vbind = pipe_to_virgl_bind(template->bind);
-   size = template->width0;
 
-   buf->base.hw_res = vs->vws->resource_create(vs->vws, template->target, template->format, vbind, template->width0, 1, 1, 1, 0, 0, size);
+   buf->base.hw_res = vs->vws->resource_create(vs->vws, template->target,
+                                               template->format, vbind,
+                                               template->width0, 1, 1, 1, 0, 0,
+                                               buf->metadata.total_size);
 
    util_range_set_empty(&buf->valid_buffer_range);
    return &buf->base.u.b;
diff --git a/src/gallium/drivers/virgl/virgl_resource.h b/src/gallium/drivers/virgl/virgl_resource.h
index d41b9906fb1..bc90d3ef82f 100644
--- a/src/gallium/drivers/virgl/virgl_resource.h
+++ b/src/gallium/drivers/virgl/virgl_resource.h
@@ -65,6 +65,7 @@ struct virgl_buffer {
     * the unsynchronized map flag and expect the driver to figure it out.
     */
    struct util_range valid_buffer_range;
+   struct virgl_resource_metadata metadata;
 };
 
 struct virgl_texture {