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// SPDX-License-Identifier: GPL-2.0
/*
* Intel Speed Select -- Enumerate and control features for Mailbox Interface
* Copyright (c) 2023 Intel Corporation.
*/
#include "isst.h"
static int mbox_get_disp_freq_multiplier(void)
{
return DISP_FREQ_MULTIPLIER;
}
static int mbox_get_trl_max_levels(void)
{
return 3;
}
static char *mbox_get_trl_level_name(int level)
{
switch (level) {
case 0:
return "sse";
case 1:
return "avx2";
case 2:
return "avx512";
default:
return NULL;
}
}
static int mbox_is_punit_valid(struct isst_id *id)
{
if (id->cpu < 0)
return 0;
if (id->pkg < 0 || id->die < 0 || id->punit)
return 0;
return 1;
}
static int mbox_get_config_levels(struct isst_id *id, struct isst_pkg_ctdp *pkg_dev)
{
unsigned int resp;
int ret;
ret = isst_send_mbox_command(id->cpu, CONFIG_TDP,
CONFIG_TDP_GET_LEVELS_INFO, 0, 0, &resp);
if (ret) {
pkg_dev->levels = 0;
pkg_dev->locked = 1;
pkg_dev->current_level = 0;
pkg_dev->version = 0;
pkg_dev->enabled = 0;
return 0;
}
debug_printf("cpu:%d CONFIG_TDP_GET_LEVELS_INFO resp:%x\n", id->cpu, resp);
pkg_dev->version = resp & 0xff;
pkg_dev->levels = (resp >> 8) & 0xff;
pkg_dev->current_level = (resp >> 16) & 0xff;
pkg_dev->locked = !!(resp & BIT(24));
pkg_dev->enabled = !!(resp & BIT(31));
return 0;
}
static struct isst_platform_ops mbox_ops = {
.get_disp_freq_multiplier = mbox_get_disp_freq_multiplier,
.get_trl_max_levels = mbox_get_trl_max_levels,
.get_trl_level_name = mbox_get_trl_level_name,
.is_punit_valid = mbox_is_punit_valid,
.get_config_levels = mbox_get_config_levels,
};
struct isst_platform_ops *mbox_get_platform_ops(void)
{
return &mbox_ops;
}
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