Files
cubelinux-kernel/drivers/accel/amdxdna/amdxdna_mailbox_helper.c
T
Greg Kroah-Hartman 598cf27219 Linux 6.19.3
Link: https://lore.kernel.org/r/20260217200002.683975158@linuxfoundation.org
Tested-by: Florian Fainelli <florian.fainelli@broadcom.com>
Tested-by: Takeshi Ogasawara <takeshi.ogasawara@futuring-girl.com>
Tested-by: Peter Schneider <pschneider1968@googlemail.com>
Tested-by: Jon Hunter <jonathanh@nvidia.com>
Tested-by: Salvatore Bonaccorso <carnil@debian.org>
Tested-by: Brett A C Sheffield <bacs@librecast.net>
Tested-by: Mark Brown <broonie@kernel.org>
Tested-by: Luna Jernberg <droidbittin@gmail.com>
Tested-by: Ronald Warsow <rwarsow@gmx.de>
Tested-by: Justin M. Forbes <jforbes@fedoraproject.org>
Tested-by: Ron Economos <re@w6rz.net>
Tested-by: Miguel Ojeda <ojeda@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2026-02-19 16:33:27 +01:00

62 lines
1.4 KiB
C

// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (C) 2024, Advanced Micro Devices, Inc.
*/
#include <drm/amdxdna_accel.h>
#include <drm/drm_device.h>
#include <drm/drm_print.h>
#include <drm/drm_gem.h>
#include <drm/drm_gem_shmem_helper.h>
#include <drm/gpu_scheduler.h>
#include <linux/completion.h>
#include "amdxdna_gem.h"
#include "amdxdna_mailbox.h"
#include "amdxdna_mailbox_helper.h"
#include "amdxdna_pci_drv.h"
int xdna_msg_cb(void *handle, void __iomem *data, size_t size)
{
struct xdna_notify *cb_arg = handle;
int ret;
if (unlikely(!data))
goto out;
if (unlikely(cb_arg->size != size)) {
cb_arg->error = -EINVAL;
goto out;
}
memcpy_fromio(cb_arg->data, data, cb_arg->size);
print_hex_dump_debug("resp data: ", DUMP_PREFIX_OFFSET,
16, 4, cb_arg->data, cb_arg->size, true);
out:
ret = cb_arg->error;
complete(&cb_arg->comp);
return ret;
}
int xdna_send_msg_wait(struct amdxdna_dev *xdna, struct mailbox_channel *chann,
struct xdna_mailbox_msg *msg)
{
struct xdna_notify *hdl = msg->handle;
int ret;
ret = xdna_mailbox_send_msg(chann, msg, TX_TIMEOUT);
if (ret) {
XDNA_ERR(xdna, "Send message failed, ret %d", ret);
return ret;
}
ret = wait_for_completion_timeout(&hdl->comp,
msecs_to_jiffies(RX_TIMEOUT));
if (!ret) {
XDNA_ERR(xdna, "Wait for completion timeout");
return -ETIME;
}
return hdl->error;
}