diff --git a/drivers/soc/qcom/Kconfig b/drivers/soc/qcom/Kconfig index dcc3c90d3937..1390e27b91da 100644 --- a/drivers/soc/qcom/Kconfig +++ b/drivers/soc/qcom/Kconfig @@ -153,6 +153,15 @@ config QCOM_LAHAINA_LLCC can start using the LLCC slices. If unsure, say n. +config QCOM_SHIMA_LLCC + tristate "Qualcomm Technologies, Inc. SHIMA LLCC driver" + depends on QCOM_LLCC + help + Say y or m here to enable the LLCC driver for Shima platform. + This provides data required to configure LLCC so that clients + can start using the LLCC slices. + If unsure, say n. + config QCOM_SDM845_LLCC tristate "Qualcomm Technologies, Inc. SDM845 LLCC driver" depends on QCOM_LLCC diff --git a/drivers/soc/qcom/Makefile b/drivers/soc/qcom/Makefile index 037f97788822..a26ecc39ee41 100644 --- a/drivers/soc/qcom/Makefile +++ b/drivers/soc/qcom/Makefile @@ -38,6 +38,7 @@ obj-$(CONFIG_QCOM_RUN_QUEUE_STATS) += rq_stats.o obj-$(CONFIG_QCOM_APR) += apr.o obj-$(CONFIG_QCOM_LLCC) += llcc-slice.o obj-$(CONFIG_QCOM_LAHAINA_LLCC) += llcc-lahaina.o +obj-$(CONFIG_QCOM_SHIMA_LLCC) += llcc-shima.o obj-$(CONFIG_QCOM_MINIDUMP) += msm_minidump.o minidump_log.o obj-$(CONFIG_QCOM_MEM_OFFLINE) += mem-offline.o obj-$(CONFIG_QCOM_MEM_BUF) += mem-buf.o diff --git a/drivers/soc/qcom/llcc-shima.c b/drivers/soc/qcom/llcc-shima.c new file mode 100644 index 000000000000..fab6ba13b180 --- /dev/null +++ b/drivers/soc/qcom/llcc-shima.c @@ -0,0 +1,89 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * Copyright (c) 2020, The Linux Foundation. All rights reserved. + * + */ + +#include +#include +#include +#include +#include + +/* + * 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 sli:qce 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 reserved 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 shima_data[] = { + SCT_ENTRY(LLCC_CPUSS, 1, 1536, 1, 1, 0xFFF, 0x0, 0, 0, 0, 0, 1, 1), + SCT_ENTRY(LLCC_AUDIO, 6, 1024, 1, 1, 0xFFF, 0x0, 0, 0, 0, 0, 1, 0), + SCT_ENTRY(LLCC_MDM, 8, 512, 2, 0, 0xFFF, 0x0, 0, 0, 0, 0, 1, 0), + SCT_ENTRY(LLCC_CMPT, 10, 1536, 1, 1, 0xFFF, 0x0, 0, 0, 0, 0, 1, 0), + SCT_ENTRY(LLCC_GPUHTW, 11, 256, 1, 1, 0xFFF, 0x0, 0, 0, 0, 0, 1, 0), + SCT_ENTRY(LLCC_GPU, 12, 1024, 1, 1, 0xFFF, 0x0, 0, 0, 0, 1, 1, 0), + SCT_ENTRY(LLCC_MMUHWT, 13, 256, 1, 1, 0xFFF, 0x0, 0, 0, 0, 0, 1, 1), + SCT_ENTRY(LLCC_DISP, 16, 1536, 1, 1, 0xFFF, 0x0, 0, 0, 0, 0, 1, 0), + SCT_ENTRY(LLCC_MDMPNG, 21, 1536, 0, 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_MDMVPE, 29, 128, 1, 1, 0xFFF, 0x0, 0, 0, 0, 0, 1, 0), + SCT_ENTRY(LLCC_WRTCH, 31, 256, 1, 1, 0xFFF, 0x0, 0, 0, 0, 0, 0, 1), +}; + +static int shima_qcom_llcc_probe(struct platform_device *pdev) +{ + return qcom_llcc_probe(pdev, shima_data, + ARRAY_SIZE(shima_data)); +} + +static const struct of_device_id shima_qcom_llcc_of_match[] = { + { .compatible = "qcom,shima-llcc" }, + { }, +}; + +static struct platform_driver shima_qcom_llcc_driver = { + .driver = { + .name = "shima-llcc", + .of_match_table = shima_qcom_llcc_of_match, + }, + .probe = shima_qcom_llcc_probe, +}; +module_platform_driver(shima_qcom_llcc_driver); + +MODULE_DESCRIPTION("QCOM shima LLCC driver"); +MODULE_LICENSE("GPL v2");