fdo-mirrors/mesa
1
0
Fork 0
mirror of https://gitlab.freedesktop.org/mesa/mesa.git synced 2026-05-08 13:28:06 +02:00
Code Issues Projects Releases Packages Wiki Activity Actions 1

iris: Implement gem_vm_bind() and gem_vm_unbind() in Xe kmd backend

Browse source 
Signed-off-by: José Roberto de Souza <jose.souza@intel.com>
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/22059>
This commit is contained in:
José Roberto de Souza 2023-02-14 09:21:25 -08:00 • committed by Marge Bot
parent c83a76339f
commit a25ef68f68
1 changed files with 83 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

83
src/gallium/drivers/iris/xe/iris_kmd_backend.c
View file

@ -25,10 +25,13 @@
#include <sys/mman.h>
#include "common/intel_gem.h"
#include "dev/intel_debug.h"
#include "iris/iris_bufmgr.h"
#include "drm-uapi/xe_drm.h"
#define FILE_DEBUG_FLAG DEBUG_BUFMGR
static uint32_t
xe_gem_create(struct iris_bufmgr *bufmgr,
const struct intel_memory_class_instance **regions,
@ -67,11 +70,91 @@ xe_gem_mmap(struct iris_bufmgr *bufmgr, struct iris_bo *bo)
return map != MAP_FAILED ? map : NULL;
}
static inline int
xe_gem_vm_bind_op(struct iris_bo *bo, uint32_t op)
{
struct drm_syncobj_create create = {};
int ret = intel_ioctl(iris_bufmgr_get_fd(bo->bufmgr),
DRM_IOCTL_SYNCOBJ_CREATE, &create);
if (ret) {
DBG("vm_bind_op: Unable to create SYNCOBJ(%i)", ret);
return ret;
}
struct drm_xe_sync sync = {
.flags = DRM_XE_SYNC_SYNCOBJ | DRM_XE_SYNC_SIGNAL,
.handle = create.handle,
};
/* Old compilers do not allow declarations after 'goto label' */
struct drm_syncobj_destroy destroy = {
.handle = create.handle,
};
uint32_t handle = op == XE_VM_BIND_OP_UNMAP ? 0 : bo->gem_handle;
uint64_t obj_offset = 0;
if (bo->real.userptr) {
handle = 0;
obj_offset = (uintptr_t)bo->real.map;
if (op == XE_VM_BIND_OP_MAP)
op = XE_VM_BIND_OP_MAP_USERPTR;
}
struct drm_xe_vm_bind args = {
.vm_id = iris_bufmgr_get_global_vm_id(bo->bufmgr),
.num_binds = 1,
.bind.obj = handle,
.bind.obj_offset = obj_offset,
.bind.range = align64(bo->size,
iris_bufmgr_get_device_info(bo->bufmgr)->mem_alignment),
.bind.addr = intel_48b_address(bo->address),
.bind.op = op,
.num_syncs = 1,
.syncs = (uintptr_t)&sync,
};
ret = intel_ioctl(iris_bufmgr_get_fd(bo->bufmgr), DRM_IOCTL_XE_VM_BIND, &args);
if (ret) {
DBG("vm_bind_op: DRM_IOCTL_XE_VM_BIND failed(%i)", ret);
goto bind_error;
}
struct drm_syncobj_wait wait = {
.handles = (uintptr_t)&create.handle,
.timeout_nsec = INT64_MAX,
.count_handles = 1,
.flags = 0,
.first_signaled = 0,
.pad = 0,
};
ret = intel_ioctl(iris_bufmgr_get_fd(bo->bufmgr), DRM_IOCTL_SYNCOBJ_WAIT, &wait);
if (ret)
DBG("vm_bind_op: DRM_IOCTL_SYNCOBJ_WAIT failed(%i)", ret);
bind_error:
if (intel_ioctl(iris_bufmgr_get_fd(bo->bufmgr), DRM_IOCTL_SYNCOBJ_DESTROY, &destroy))
DBG("vm_bind_op: Unable to destroy SYNCOBJ(%i)", ret);
return ret;
}
static bool
xe_gem_vm_bind(struct iris_bo *bo)
{
return xe_gem_vm_bind_op(bo, XE_VM_BIND_OP_MAP) == 0;
}
static bool
xe_gem_vm_unbind(struct iris_bo *bo)
{
return xe_gem_vm_bind_op(bo, XE_VM_BIND_OP_UNMAP) == 0;
}
const struct iris_kmd_backend *xe_get_backend(void)
{
static const struct iris_kmd_backend xe_backend = {
.gem_create = xe_gem_create,
.gem_mmap = xe_gem_mmap,
.gem_vm_bind = xe_gem_vm_bind,
.gem_vm_unbind = xe_gem_vm_unbind,
};
return &xe_backend;
}