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// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (c) 2017-2018, The Linux Foundation. All rights reserved.
*
*/
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/of.h>
#include <linux/of_device.h>
#include <linux/soc/qcom/llcc-qcom.h>
/*
* SCT(System Cache Table) entry contains of the following members:
* usecase_id: 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: Boolean indicating if the slice has a fixed capacity
* bonus_ways: Bonus ways are additional ways to be used for any slice,
* if client ends up using more than reserved cache ways. Bonus
* ways are allocated only if they are not reserved for some
* other client.
* 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(Tightly Coupled Memory)
* probe_target_ways: Determines what ways to probe for access hit. When
* configured to 1 only bonus and reserved 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 maintained active vote
* then the ways assigned to this client are not flushed on power
* collapse.
* activate_on_init: Activate the slice immediately after the SCT is programmed
*/
#define SCT_ENTRY(uid, sid, mc, p, fs, bway, rway, cmod, ptw, dca, rp, a) \
{ \
.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 sdm845_data[] = {
SCT_ENTRY(LLCC_CPUSS, 1, 2816, 1, 0, 0xffc, 0x2, 0, 0, 1, 1, 1),
SCT_ENTRY(LLCC_VIDSC0, 2, 512, 2, 1, 0x0, 0x0f0, 0, 0, 1, 1, 0),
SCT_ENTRY(LLCC_VIDSC1, 3, 512, 2, 1, 0x0, 0x0f0, 0, 0, 1, 1, 0),
SCT_ENTRY(LLCC_ROTATOR, 4, 563, 2, 1, 0x0, 0x00e, 2, 0, 1, 1, 0),
SCT_ENTRY(LLCC_VOICE, 5, 2816, 1, 0, 0xffc, 0x2, 0, 0, 1, 1, 0),
SCT_ENTRY(LLCC_AUDIO, 6, 2816, 1, 0, 0xffc, 0x2, 0, 0, 1, 1, 0),
SCT_ENTRY(LLCC_MDMHPGRW, 7, 1024, 2, 0, 0xfc, 0xf00, 0, 0, 1, 1, 0),
SCT_ENTRY(LLCC_MDM, 8, 2816, 1, 0, 0xffc, 0x2, 0, 0, 1, 1, 0),
SCT_ENTRY(LLCC_CMPT, 10, 2816, 1, 0, 0xffc, 0x2, 0, 0, 1, 1, 0),
SCT_ENTRY(LLCC_GPUHTW, 11, 512, 1, 1, 0xc, 0x0, 0, 0, 1, 1, 0),
SCT_ENTRY(LLCC_GPU, 12, 2304, 1, 0, 0xff0, 0x2, 0, 0, 1, 1, 0),
SCT_ENTRY(LLCC_MMUHWT, 13, 256, 2, 0, 0x0, 0x1, 0, 0, 1, 0, 1),
SCT_ENTRY(LLCC_CMPTDMA, 15, 2816, 1, 0, 0xffc, 0x2, 0, 0, 1, 1, 0),
SCT_ENTRY(LLCC_DISP, 16, 2816, 1, 0, 0xffc, 0x2, 0, 0, 1, 1, 0),
SCT_ENTRY(LLCC_VIDFW, 17, 2816, 1, 0, 0xffc, 0x2, 0, 0, 1, 1, 0),
SCT_ENTRY(LLCC_MDMHPFX, 20, 1024, 2, 1, 0x0, 0xf00, 0, 0, 1, 1, 0),
SCT_ENTRY(LLCC_MDMPNG, 21, 1024, 0, 1, 0x1e, 0x0, 0, 0, 1, 1, 0),
SCT_ENTRY(LLCC_AUDHW, 22, 1024, 1, 1, 0xffc, 0x2, 0, 0, 1, 1, 0),
};
static int sdm845_qcom_llcc_probe(struct platform_device *pdev)
{
return qcom_llcc_probe(pdev, sdm845_data, ARRAY_SIZE(sdm845_data));
}
static const struct of_device_id sdm845_qcom_llcc_of_match[] = {
{ .compatible = "qcom,sdm845-llcc", },
{ }
};
static struct platform_driver sdm845_qcom_llcc_driver = {
.driver = {
.name = "sdm845-llcc",
.of_match_table = sdm845_qcom_llcc_of_match,
},
.probe = sdm845_qcom_llcc_probe,
};
module_platform_driver(sdm845_qcom_llcc_driver);
MODULE_DESCRIPTION("QCOM sdm845 LLCC driver");
MODULE_LICENSE("GPL v2");
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