/*
* Copyright (c) 2018, NVIDIA CORPORATION. All rights reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*/
#include <nvgpu/kmem.h>
#include <nvgpu/vgpu/vgpu_ivc.h>
#include <nvgpu/vgpu/vgpu.h>
#include <nvgpu/errno.h>
#include "vgpu/ecc_vgpu.h"
int vgpu_ecc_get_info(struct gk20a *g)
{
struct vgpu_priv_data *priv = vgpu_get_priv_data(g);
struct tegra_vgpu_cmd_msg msg = {0};
struct tegra_vgpu_ecc_info_params *p = &msg.params.ecc_info;
struct tegra_vgpu_ecc_info_entry *entry;
struct vgpu_ecc_stat *stats;
void *handle;
int err, i, count;
size_t oob_size;
msg.cmd = TEGRA_VGPU_CMD_GET_ECC_INFO;
msg.handle = vgpu_get_handle(g);
err = vgpu_comm_sendrecv(&msg, sizeof(msg), sizeof(msg));
err = err ? err : msg.ret;
if (unlikely(err)) {
nvgpu_err(g, "vgpu get_ecc_info failed, err=%d", err);
return err;
}
count = p->ecc_stats_count;
handle = vgpu_ivc_oob_get_ptr(vgpu_ivc_get_server_vmid(),
TEGRA_VGPU_QUEUE_CMD,
(void **)&entry, &oob_size);
if (unlikely(!handle))
return -EINVAL;
if (unlikely(oob_size < count * sizeof(*entry))) {
err = -E2BIG;
goto out;
}
stats = nvgpu_kzalloc(g, count * sizeof(*stats));
if (unlikely(!stats)) {
err = -ENOMEM;
goto out;
}
for (i = 0; i < count; i++) {
stats[i].ecc_id = entry[i].ecc_id;
strncpy(stats[i].name, entry[i].name,
NVGPU_ECC_STAT_NAME_MAX_SIZE);
}
priv->ecc_stats = stats;
priv->ecc_stats_count = count;
out:
vgpu_ivc_oob_put_ptr(handle);
return err;
}
void vgpu_ecc_remove_info(struct gk20a *g)
{
struct vgpu_priv_data *priv = vgpu_get_priv_data(g);
priv->ecc_stats_count = 0;
if (priv->ecc_stats) {
nvgpu_kfree(g, priv->ecc_stats);
priv->ecc_stats = NULL;
}
}
