| // SPDX-License-Identifier: GPL-2.0-only |
| /* |
| * Copyright (c) 2018-2019, The Linux Foundation. All rights reserved. |
| * |
| */ |
| |
| #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 |
| * 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 |
| * write_scid_en: Bit enables write cache support for a given scid. |
| * 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(uid, sid, mc, p, fs, bway, rway, cmod, ptw, dca, wse, 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, \ |
| .write_scid_en = wse, \ |
| .retain_on_pc = rp, \ |
| .activate_on_init = a, \ |
| } |
| |
| static struct llcc_slice_config kona_data[] = { |
| SCT_ENTRY(LLCC_CPUSS, 1, 3072, 1, 0, 0xFFF, 0x0, 0, 0, 0, 0, 1, 1), |
| SCT_ENTRY(LLCC_VIDSC0, 2, 512, 3, 1, 0xFFF, 0x0, 0, 0, 0, 0, 1, 0), |
| SCT_ENTRY(LLCC_AUDIO, 6, 1024, 1, 0, 0xFFF, 0x0, 0, 0, 0, 0, 0, 0), |
| SCT_ENTRY(LLCC_CMPT, 10, 1024, 1, 0, 0xFFF, 0x0, 0, 0, 0, 0, 0, 0), |
| SCT_ENTRY(LLCC_GPUHTW, 11, 1024, 1, 1, 0xFFF, 0x0, 0, 0, 0, 0, 1, 0), |
| SCT_ENTRY(LLCC_GPU, 12, 2048, 1, 0, 0xFFF, 0x0, 0, 0, 0, 1, 1, 0), |
| SCT_ENTRY(LLCC_MMUHWT, 13, 1024, 1, 1, 0xFFF, 0x0, 0, 0, 0, 0, 0, 1), |
| SCT_ENTRY(LLCC_CMPTDMA, 15, 1024, 1, 0, 0xFFF, 0x0, 0, 0, 0, 0, 1, 0), |
| SCT_ENTRY(LLCC_DISP, 16, 3072, 1, 1, 0xFFF, 0x0, 0, 0, 0, 0, 1, 0), |
| SCT_ENTRY(LLCC_AUDHW, 22, 1024, 1, 1, 0xFFF, 0x0, 0, 0, 0, 0, 1, 0), |
| SCT_ENTRY(LLCC_NPU, 23, 3072, 1, 0, 0xFFF, 0x0, 0, 0, 0, 0, 1, 0), |
| SCT_ENTRY(LLCC_WLNHW, 24, 1024, 1, 0, 0xFFF, 0x0, 0, 0, 0, 0, 1, 0), |
| SCT_ENTRY(LLCC_CVP, 28, 512, 3, 1, 0xFFF, 0x0, 0, 0, 0, 0, 1, 0), |
| SCT_ENTRY(LLCC_APTCM, 30, 128, 3, 0, 0x0, 0x3, 1, 0, 0, 0, 1, 0), |
| SCT_ENTRY(LLCC_WRTCH, 31, 256, 1, 1, 0xFFF, 0x0, 0, 0, 0, 0, 0, 1), |
| SCT_ENTRY(LLCC_CVPFW, 17, 512, 3, 0, 0xFFF, 0x0, 0, 0, 0, 0, 1, 0), |
| }; |
| |
| static int kona_qcom_llcc_probe(struct platform_device *pdev) |
| { |
| return qcom_llcc_probe(pdev, kona_data, |
| ARRAY_SIZE(kona_data)); |
| } |
| |
| static const struct of_device_id kona_qcom_llcc_of_match[] = { |
| { .compatible = "qcom,llcc-v2", }, |
| { }, |
| }; |
| |
| static struct platform_driver kona_qcom_llcc_driver = { |
| .driver = { |
| .name = "kona-llcc", |
| .of_match_table = kona_qcom_llcc_of_match, |
| }, |
| .probe = kona_qcom_llcc_probe, |
| }; |
| module_platform_driver(kona_qcom_llcc_driver); |
| |
| MODULE_DESCRIPTION("QCOM kona LLCC driver"); |
| MODULE_LICENSE("GPL v2"); |