You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
100 lines
3.6 KiB
100 lines
3.6 KiB
/* Copyright (c) 2018, The Linux Foundation. All rights reserved.
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License version 2 and
|
|
* only version 2 as published by the Free Software Foundation.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*/
|
|
|
|
#include <linux/kernel.h>
|
|
#include <linux/module.h>
|
|
#include <linux/of.h>
|
|
#include <linux/platform_device.h>
|
|
#include <linux/soc/qcom/llcc-qcom.h>
|
|
|
|
/*
|
|
* SCT entry contains of the following parameters
|
|
* name: Name of the client's use case for which the llcc slice is used
|
|
* uid: Unique id for the client's use case
|
|
* slice_id: llcc slice id for each client
|
|
* max_cap: The maximum capacity of the cache slice provided in KB
|
|
* priority: Priority of the client used to select victim line for replacement
|
|
* fixed_size: Determine of the slice has a fixed capacity
|
|
* bonus_ways: Bonus ways to be used by any slice, bonus way is used only if
|
|
* it't not a reserved way.
|
|
* res_ways: Reserved ways for the cache slice, the reserved ways cannot be used
|
|
* by any other client than the one its assigned to.
|
|
* cache_mode: Each slice operates as a cache, this controls the mode of the
|
|
* slice normal or TCM
|
|
* probe_target_ways: Determines what ways to probe for access hit. When
|
|
* configured to 1 only bonus and reseved ways are probed.
|
|
* when configured to 0 all ways in llcc are probed.
|
|
* dis_cap_alloc: Disable capacity based allocation for a client
|
|
* retain_on_pc: If this bit is set and client has maitained active vote
|
|
* then the ways assigned to this client are not flushed on power
|
|
* collapse.
|
|
* activate_on_init: Activate the slice immidiately after the SCT is programmed
|
|
*/
|
|
#define SCT_ENTRY(n, uid, sid, mc, p, fs, bway, rway, cmod, ptw, dca, rp, a) \
|
|
{ \
|
|
.name = n, \
|
|
.usecase_id = uid, \
|
|
.slice_id = sid, \
|
|
.max_cap = mc, \
|
|
.priority = p, \
|
|
.fixed_size = fs, \
|
|
.bonus_ways = bway, \
|
|
.res_ways = rway, \
|
|
.cache_mode = cmod, \
|
|
.probe_target_ways = ptw, \
|
|
.dis_cap_alloc = dca, \
|
|
.retain_on_pc = rp, \
|
|
.activate_on_init = a, \
|
|
}
|
|
|
|
static struct llcc_slice_config sm6150_data[] = {
|
|
SCT_ENTRY("cpuss", 1, 1, 128, 1, 0, 0xF, 0x0, 0, 0, 0, 1, 1),
|
|
SCT_ENTRY("modem", 8, 8, 256, 0, 1, 0xF, 0x0, 0, 0, 0, 1, 0),
|
|
SCT_ENTRY("gpuhtw", 11, 11, 128, 1, 1, 0xF, 0x0, 0, 0, 0, 1, 0),
|
|
SCT_ENTRY("gpu", 12, 12, 128, 1, 0, 0xF, 0x0, 0, 0, 0, 1, 0),
|
|
};
|
|
|
|
static int sm6150_qcom_llcc_probe(struct platform_device *pdev)
|
|
{
|
|
return qcom_llcc_probe(pdev, sm6150_data,
|
|
ARRAY_SIZE(sm6150_data));
|
|
}
|
|
|
|
static const struct of_device_id sm6150_qcom_llcc_of_match[] = {
|
|
{ .compatible = "qcom,sm6150-llcc", },
|
|
{ },
|
|
};
|
|
|
|
static struct platform_driver sm6150_qcom_llcc_driver = {
|
|
.driver = {
|
|
.name = "sm6150-llcc",
|
|
.owner = THIS_MODULE,
|
|
.of_match_table = sm6150_qcom_llcc_of_match,
|
|
},
|
|
.probe = sm6150_qcom_llcc_probe,
|
|
.remove = qcom_llcc_remove,
|
|
};
|
|
|
|
static int __init sm6150_init_qcom_llcc_init(void)
|
|
{
|
|
return platform_driver_register(&sm6150_qcom_llcc_driver);
|
|
}
|
|
module_init(sm6150_init_qcom_llcc_init);
|
|
|
|
static void __exit sm6150_exit_qcom_llcc_exit(void)
|
|
{
|
|
platform_driver_unregister(&sm6150_qcom_llcc_driver);
|
|
}
|
|
module_exit(sm6150_exit_qcom_llcc_exit);
|
|
|
|
MODULE_DESCRIPTION("Qualcomm Technologies Inc sm6150 LLCC driver");
|
|
MODULE_LICENSE("GPL v2");
|
|
|