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asahi: Implement agx_resource_from_handle

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Only used on Linux, but can compile anywhere.

Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/19606>
This commit is contained in:
Asahi Lina 2022-11-08 10:31:02 -05:00 • committed by Marge Bot
parent b774ed7c18
commit 01964625eb
1 changed files with 72 additions and 1 deletions
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73
src/gallium/drivers/asahi/agx_pipe.c
View file

@ -25,6 +25,7 @@
*/
#include <stdio.h>
#include <errno.h>
#include "asahi/layout/layout.h"
#include "pipe/p_defines.h"
#include "pipe/p_state.h"
#include "pipe/p_context.h"
@ -42,6 +43,8 @@
#include "gallium/auxiliary/util/u_surface.h"
#include "gallium/auxiliary/util/u_framebuffer.h"
#include "gallium/auxiliary/util/u_debug_cb.h"
#include "gallium/auxiliary/renderonly/renderonly.h"
#include "agx_device.h"
#include "agx_public.h"
#include "agx_state.h"
#include "magic.h"
@ -130,13 +133,81 @@ agx_set_active_query_state(struct pipe_context *pipe, bool enable)
* resource
*/
static void
agx_resource_setup(struct agx_device *dev,
struct agx_resource *nresource)
{
struct pipe_resource *templ = &nresource->base;
nresource->layout = (struct ail_layout) {
.tiling = (nresource->modifier == DRM_FORMAT_MOD_LINEAR) ?
AIL_TILING_LINEAR : AIL_TILING_TWIDDLED,
.format = templ->format,
.width_px = templ->width0,
.height_px = templ->height0,
.depth_px = templ->depth0 * templ->array_size,
.levels = templ->last_level + 1,
};
}
static struct pipe_resource *
agx_resource_from_handle(struct pipe_screen *pscreen,
const struct pipe_resource *templat,
struct winsys_handle *whandle,
unsigned usage)
{
unreachable("Imports todo");
struct agx_device *dev = agx_device(pscreen);
struct agx_resource *rsc;
struct pipe_resource *prsc;
assert(whandle->type == WINSYS_HANDLE_TYPE_FD);
rsc = CALLOC_STRUCT(agx_resource);
if (!rsc)
return NULL;
/* We need strides to be aligned. ail asserts this, but we want to fail
* gracefully so the app can handle the error.
*/
if ((whandle->stride % 16) != 0)
return false;
prsc = &rsc->base;
*prsc = *templat;
pipe_reference_init(&prsc->reference, 1);
prsc->screen = pscreen;
rsc->bo = agx_bo_import(dev, whandle->handle);
/* Sometimes an import can fail e.g. on an invalid buffer fd, out of
* memory space to mmap it etc.
*/
if (!rsc->bo) {
FREE(rsc);
return NULL;
}
rsc->modifier = whandle->modifier == DRM_FORMAT_MOD_INVALID ?
DRM_FORMAT_MOD_LINEAR : whandle->modifier;
agx_resource_setup(dev, rsc);
if (rsc->layout.tiling == AIL_TILING_LINEAR)
rsc->layout.linear_stride_B = whandle->stride;
else if (whandle->stride != ail_get_wsi_stride_B(&rsc->layout, 0))
return NULL;
assert(whandle->offset == 0);
ail_make_miptree(&rsc->layout);
if (dev->ro) {
rsc->scanout =
renderonly_create_gpu_import_for_resource(prsc, dev->ro, NULL);
/* failure is expected in some cases.. */
}
return prsc;
}
static bool