new file mode 100644
@@ -0,0 +1,120 @@
+/* Copyright (c) 2016-2017, 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/err.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
+#include <linux/platform_device.h>
+#include <linux/soc/qcom/llcc-qcom.h>
+#include <linux/mfd/syscon.h>
+#include <linux/regmap.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 sdm845_data[] = {
+ SCT_ENTRY("cpuss", 1, 1, 2816, 1, 0, 0xFFC, 0x2, 0, 0, 1, 1, 1),
+ SCT_ENTRY("vidsc0", 2, 2, 512, 2, 1, 0x0, 0x0F0, 0, 0, 1, 1, 0),
+ SCT_ENTRY("vidsc1", 3, 3, 512, 2, 1, 0x0, 0x0F0, 0, 0, 1, 1, 0),
+ SCT_ENTRY("rotator", 4, 4, 563, 2, 1, 0x0, 0x00e, 2, 0, 1, 1, 0),
+ SCT_ENTRY("voice", 5, 5, 2816, 1, 0, 0xFFC, 0x2, 0, 0, 1, 1, 0),
+ SCT_ENTRY("audio", 6, 6, 2816, 1, 0, 0xFFC, 0x2, 0, 0, 1, 1, 0),
+ SCT_ENTRY("modemhp_grow", 7, 7, 1024, 2, 0, 0x0FC, 0xF00, 0, 0, 1, 1, 0),
+ SCT_ENTRY("modem", 8, 8, 2816, 1, 0, 0xFFC, 0x2, 0, 0, 1, 1, 0),
+ SCT_ENTRY("compute", 10, 10, 2816, 1, 0, 0xFFC, 0x2, 0, 0, 1, 1, 0),
+ SCT_ENTRY("gpuhtw", 11, 11, 512, 1, 1, 0xC, 0x0, 0, 0, 1, 1, 0),
+ SCT_ENTRY("gpu", 12, 12, 2304, 1, 0, 0xFF0, 0x2, 0, 0, 1, 1, 0),
+ SCT_ENTRY("mmuhwt", 13, 13, 256, 2, 0, 0x0, 0x1, 0, 0, 1, 0, 1),
+ SCT_ENTRY("compute_dma", 15, 15, 2816, 1, 0, 0xFFC, 0x2, 0, 0, 1, 1, 0),
+ SCT_ENTRY("display", 16, 16, 2816, 1, 0, 0xFFC, 0x2, 0, 0, 1, 1, 0),
+ SCT_ENTRY("videofw", 17, 17, 2816, 1, 0, 0xFFC, 0x2, 0, 0, 1, 1, 0),
+ SCT_ENTRY("modemhp_fix", 20, 20, 1024, 2, 1, 0x0, 0xF00, 0, 0, 1, 1, 0),
+ SCT_ENTRY("modem_paging", 21, 21, 1024, 0, 1, 0x1e, 0x0, 0, 0, 1, 1, 0),
+ SCT_ENTRY("audiohw", 22, 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",
+ .owner = THIS_MODULE,
+ .of_match_table = sdm845_qcom_llcc_of_match,
+ },
+ .probe = sdm845_qcom_llcc_probe,
+ .remove = qcom_llcc_remove,
+};
+
+static int __init sdm845_init_qcom_llcc_init(void)
+{
+ return platform_driver_register(&sdm845_qcom_llcc_driver);
+}
+module_init(sdm845_init_qcom_llcc_init);
+
+static void __exit sdm845_exit_qcom_llcc_exit(void)
+{
+ platform_driver_unregister(&sdm845_qcom_llcc_driver);
+}
+module_exit(sdm845_exit_qcom_llcc_exit);
+
+MODULE_DESCRIPTION("QTI sdm845 LLCC driver");
+MODULE_LICENSE("GPL v2");
new file mode 100644
@@ -0,0 +1,454 @@
+/* Copyright (c) 2017-2018, 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.
+ */
+
+#define pr_fmt(fmt) "%s:" fmt, __func__
+
+#include <linux/kernel.h>
+#include <linux/device.h>
+#include <linux/delay.h>
+#include <linux/of_device.h>
+#include <linux/platform_device.h>
+#include <linux/mutex.h>
+#include <linux/bitmap.h>
+#include <linux/bitops.h>
+#include <linux/slab.h>
+#include <linux/io.h>
+#include <linux/err.h>
+#include <linux/mfd/syscon.h>
+#include <linux/regmap.h>
+#include <linux/soc/qcom/llcc-qcom.h>
+
+#define ACTIVATE 0x1
+#define DEACTIVATE 0x2
+#define ACT_CTRL_OPCODE_ACTIVATE 0x1
+#define ACT_CTRL_OPCODE_DEACTIVATE 0x2
+#define ACT_CTRL_ACT_TRIG 0x1
+#define ACT_CTRL_OPCODE_SHIFT 0x1
+#define ATTR1_PROBE_TARGET_WAYS_SHIFT 0x2
+#define ATTR1_FIXED_SIZE_SHIFT 0x3
+#define ATTR1_PRIORITY_SHIFT 0x4
+#define ATTR1_MAX_CAP_SHIFT 0x10
+#define ATTR0_RES_WAYS_MASK 0x00000fff
+#define ATR0_BONUS_WAYS_MASK 0x0fff0000
+#define ATR0_BONUS_WAYS_SHIFT 0x10
+#define LLCC_STATUS_READ_DELAY 100
+
+#define CACHE_LINE_SIZE_SHIFT 6
+
+#define LLCC_COMMON_STATUS0 0x0003000C
+#define LLCC_LB_CNT_MASK 0xf0000000
+#define LLCC_LB_CNT_SHIFT 28
+
+#define MAX_CAP_TO_BYTES(n) (n * 1024)
+#define LLCC_TRP_ACT_CTRLn(n) (n * 0x1000)
+#define LLCC_TRP_STATUSn(n) (4 + n * 0x1000)
+#define LLCC_TRP_ATTR0_CFGn(n) (0x21000 + 0x8 * n)
+#define LLCC_TRP_ATTR1_CFGn(n) (0x21004 + 0x8 * n)
+
+
+
+static const struct regmap_config llcc_regmap_config = {
+ .reg_bits = 32,
+ .reg_stride = 4,
+ .val_bits = 32,
+ .fast_io = true,
+};
+
+
+/* Get the slice entry by index */
+static struct llcc_slice_desc *llcc_slice_get_entry(struct device *dev, int n)
+{
+ struct of_phandle_args phargs;
+ struct llcc_drv_data *drv;
+ const struct llcc_slice_config *llcc_data_ptr;
+ struct llcc_slice_desc *desc;
+ struct platform_device *pdev;
+ u32 sz, count;
+
+ if (of_parse_phandle_with_args(dev->of_node, "cache-slices",
+ "#cache-cells", n, &phargs)) {
+ pr_err("can't parse \"cache-slices\" property\n");
+ return ERR_PTR(-ENODEV);
+ }
+
+ pdev = of_find_device_by_node(phargs.np);
+ if (!pdev) {
+ pr_err("Cannot find platform device from phandle\n");
+ return ERR_PTR(-ENODEV);
+ }
+
+ drv = platform_get_drvdata(pdev);
+ if (!drv) {
+ pr_err("cannot find platform driver data\n");
+ return ERR_PTR(-EFAULT);
+ }
+
+ llcc_data_ptr = drv->slice_data;
+ sz = drv->llcc_config_data_sz;
+ count = 0;
+
+ while (llcc_data_ptr && count < sz) {
+ if (llcc_data_ptr->usecase_id == phargs.args[0])
+ break;
+ llcc_data_ptr++;
+ count++;
+ }
+
+ if (llcc_data_ptr == NULL || count == sz) {
+ pr_err("can't find %d usecase id\n", phargs.args[0]);
+ return ERR_PTR(-ENODEV);
+ }
+
+ desc = kzalloc(sizeof(struct llcc_slice_desc), GFP_KERNEL);
+ if (!desc)
+ return ERR_PTR(-ENOMEM);
+
+ desc->llcc_slice_id = llcc_data_ptr->slice_id;
+ desc->llcc_slice_size = llcc_data_ptr->max_cap;
+ desc->dev = &pdev->dev;
+
+ return desc;
+}
+
+/**
+ * llcc_slice_getd - get llcc slice descriptor
+ * @dev: Device pointer of the client
+ * @name: Name of the use case
+ *
+ * A pointer to llcc slice descriptor will be returned on success and
+ * and error pointer is returned on failure
+ */
+struct llcc_slice_desc *llcc_slice_getd(struct device *dev, const char *name)
+{
+ struct device_node *np = dev->of_node;
+ int index = 0;
+ const char *slice_name;
+ struct property *prop;
+
+ if (!np) {
+ dev_err(dev, "%s() currently only supports DT\n", __func__);
+ return ERR_PTR(-ENOENT);
+ }
+
+ if (!of_get_property(np, "cache-slice-names", NULL)) {
+ dev_err(dev,
+ "%s() requires a \"cache-slice-names\" property\n",
+ __func__);
+ return ERR_PTR(-ENOENT);
+ }
+
+ of_property_for_each_string(np, "cache-slice-names", prop, slice_name) {
+ if (!strcmp(name, slice_name))
+ break;
+ index++;
+ }
+
+ return llcc_slice_get_entry(dev, index);
+}
+EXPORT_SYMBOL(llcc_slice_getd);
+
+/**
+ * llcc_slice_putd - llcc slice descritpor
+ * @desc: Pointer to llcc slice descriptor
+ */
+void llcc_slice_putd(struct llcc_slice_desc *desc)
+{
+ kfree(desc);
+}
+EXPORT_SYMBOL(llcc_slice_putd);
+
+static int llcc_update_act_ctrl(struct llcc_drv_data *drv, u32 sid,
+ u32 act_ctrl_reg_val, u32 status)
+{
+ u32 act_ctrl_reg;
+ u32 status_reg;
+ u32 slice_status;
+ unsigned long timeout;
+
+ act_ctrl_reg = drv->b_off + LLCC_TRP_ACT_CTRLn(sid);
+ status_reg = drv->b_off + LLCC_TRP_STATUSn(sid);
+
+ regmap_write(drv->llcc_map, act_ctrl_reg, act_ctrl_reg_val);
+
+ /* Make sure the activate trigger is applied before clearing it */
+ mb();
+
+ /* Clear the ACTIVE trigger */
+ act_ctrl_reg_val &= ~ACT_CTRL_ACT_TRIG;
+ regmap_write(drv->llcc_map, act_ctrl_reg, act_ctrl_reg_val);
+
+ timeout = jiffies + usecs_to_jiffies(LLCC_STATUS_READ_DELAY);
+ while (time_before(jiffies, timeout)) {
+ regmap_read(drv->llcc_map, status_reg, &slice_status);
+ if (!(slice_status & status))
+ return 0;
+ }
+
+ return -ETIMEDOUT;
+}
+
+/**
+ * llcc_slice_activate - Activate the llcc slice
+ * @desc: Pointer to llcc slice descriptor
+ *
+ * A value zero will be returned on success and a negative errno will
+ * be returned in error cases
+ */
+int llcc_slice_activate(struct llcc_slice_desc *desc)
+{
+ int rc = -EINVAL;
+ u32 act_ctrl_val;
+ struct llcc_drv_data *drv;
+
+ if (desc == NULL)
+ return rc;
+
+ drv = dev_get_drvdata(desc->dev);
+ if (!drv)
+ return rc;
+
+ mutex_lock(&drv->slice_mutex);
+ if (test_bit(desc->llcc_slice_id, drv->llcc_slice_map)) {
+ mutex_unlock(&drv->slice_mutex);
+ return 0;
+ }
+
+ act_ctrl_val = ACT_CTRL_OPCODE_ACTIVATE << ACT_CTRL_OPCODE_SHIFT;
+ act_ctrl_val |= ACT_CTRL_ACT_TRIG;
+
+ rc = llcc_update_act_ctrl(drv, desc->llcc_slice_id, act_ctrl_val,
+ DEACTIVATE);
+
+ __set_bit(desc->llcc_slice_id, drv->llcc_slice_map);
+ mutex_unlock(&drv->slice_mutex);
+
+ return rc;
+}
+EXPORT_SYMBOL(llcc_slice_activate);
+
+/**
+ * llcc_slice_deactivate - Deactivate the llcc slice
+ * @desc: Pointer to llcc slice descriptor
+ *
+ * A value zero will be returned on success and a negative errno will
+ * be returned in error cases
+ */
+int llcc_slice_deactivate(struct llcc_slice_desc *desc)
+{
+ u32 act_ctrl_val;
+ int rc = -EINVAL;
+ struct llcc_drv_data *drv;
+
+ if (desc == NULL)
+ return rc;
+
+ drv = dev_get_drvdata(desc->dev);
+ if (!drv)
+ return rc;
+
+ mutex_lock(&drv->slice_mutex);
+ if (!test_bit(desc->llcc_slice_id, drv->llcc_slice_map)) {
+ mutex_unlock(&drv->slice_mutex);
+ return 0;
+ }
+ act_ctrl_val = ACT_CTRL_OPCODE_DEACTIVATE << ACT_CTRL_OPCODE_SHIFT;
+ act_ctrl_val |= ACT_CTRL_ACT_TRIG;
+
+ rc = llcc_update_act_ctrl(drv, desc->llcc_slice_id, act_ctrl_val,
+ ACTIVATE);
+
+ __clear_bit(desc->llcc_slice_id, drv->llcc_slice_map);
+ mutex_unlock(&drv->slice_mutex);
+
+ return rc;
+}
+EXPORT_SYMBOL(llcc_slice_deactivate);
+
+/**
+ * llcc_get_slice_id - return the slice id
+ * @desc: Pointer to llcc slice descriptor
+ *
+ * A positive value will be returned on success and a negative errno will
+ * be returned on error
+ */
+int llcc_get_slice_id(struct llcc_slice_desc *desc)
+{
+ if (!desc)
+ return -EINVAL;
+
+ return desc->llcc_slice_id;
+}
+EXPORT_SYMBOL(llcc_get_slice_id);
+
+/**
+ * llcc_get_slice_size - return the slice id
+ * @desc: Pointer to llcc slice descriptor
+ *
+ * A positive value will be returned on success and zero will returned on
+ * error
+ */
+size_t llcc_get_slice_size(struct llcc_slice_desc *desc)
+{
+ if (!desc)
+ return 0;
+
+ return desc->llcc_slice_size;
+}
+EXPORT_SYMBOL(llcc_get_slice_size);
+
+static void qcom_llcc_cfg_program(struct platform_device *pdev)
+{
+ int i;
+ u32 attr1_cfg;
+ u32 attr0_cfg;
+ u32 attr1_val;
+ u32 attr0_val;
+ u32 max_cap_cacheline;
+ u32 sz;
+ const struct llcc_slice_config *llcc_table;
+ struct llcc_slice_desc desc;
+ struct llcc_drv_data *drv = platform_get_drvdata(pdev);
+ u32 b_off = drv->b_off;
+
+ sz = drv->llcc_config_data_sz;
+ llcc_table = drv->slice_data;
+
+ for (i = 0; i < sz; i++) {
+ attr1_cfg = b_off + LLCC_TRP_ATTR1_CFGn(llcc_table[i].slice_id);
+ attr0_cfg = b_off + LLCC_TRP_ATTR0_CFGn(llcc_table[i].slice_id);
+
+ attr1_val = llcc_table[i].cache_mode;
+ attr1_val |= (llcc_table[i].probe_target_ways <<
+ ATTR1_PROBE_TARGET_WAYS_SHIFT);
+ attr1_val |= (llcc_table[i].fixed_size <<
+ ATTR1_FIXED_SIZE_SHIFT);
+ attr1_val |= (llcc_table[i].priority << ATTR1_PRIORITY_SHIFT);
+
+ max_cap_cacheline = MAX_CAP_TO_BYTES(llcc_table[i].max_cap);
+
+ /* LLCC instances can vary for each target.
+ * The SW writes to broadcast register which gets propagated
+ * to each llcc instace (llcc0,.. llccN).
+ * Since the size of the memory is divided equally amongst the
+ * llcc instances, we need to configure the max cap accordingly.
+ */
+ max_cap_cacheline = (max_cap_cacheline / drv->num_banks);
+ max_cap_cacheline >>= CACHE_LINE_SIZE_SHIFT;
+ attr1_val |= (max_cap_cacheline << ATTR1_MAX_CAP_SHIFT);
+
+ attr0_val = llcc_table[i].res_ways & ATTR0_RES_WAYS_MASK;
+ attr0_val |= llcc_table[i].bonus_ways << ATR0_BONUS_WAYS_SHIFT;
+
+ regmap_write(drv->llcc_map, attr1_cfg, attr1_val);
+ regmap_write(drv->llcc_map, attr0_cfg, attr0_val);
+
+ /* Make sure that the SCT is programmed before activating */
+ mb();
+
+ if (llcc_table[i].activate_on_init) {
+ desc.llcc_slice_id = llcc_table[i].slice_id;
+ desc.dev = &pdev->dev;
+ if (llcc_slice_activate(&desc)) {
+ pr_err("activate slice id: %d timed out\n",
+ desc.llcc_slice_id);
+ }
+ }
+ }
+}
+
+int qcom_llcc_probe(struct platform_device *pdev,
+ const struct llcc_slice_config *llcc_cfg, u32 sz)
+{
+ int rc = 0;
+ u32 num_banks = 0;
+ struct device *dev = &pdev->dev;
+ static struct llcc_drv_data *drv_data;
+ struct resource *res;
+ void __iomem *base;
+
+ drv_data = devm_kzalloc(dev, sizeof(*drv_data), GFP_KERNEL);
+ if (!drv_data)
+ return PTR_ERR(drv_data);
+
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ base = devm_ioremap_resource(&pdev->dev, res);
+ if (IS_ERR(base)) {
+ dev_err(&pdev->dev,"Cannot find the resource in device\n");
+ return PTR_ERR(base);
+ }
+
+ drv_data->llcc_map = devm_regmap_init_mmio(dev, base, &llcc_regmap_config);
+ if (IS_ERR(drv_data->llcc_map)) {
+ dev_err(&pdev->dev,"Cannot init the regmap for llcc\n");
+ return PTR_ERR(drv_data->llcc_map);
+ }
+
+ regmap_read(drv_data->llcc_map, LLCC_COMMON_STATUS0,
+ &num_banks);
+
+ num_banks &= LLCC_LB_CNT_MASK;
+ num_banks >>= LLCC_LB_CNT_SHIFT;
+ drv_data->num_banks = num_banks;
+
+ rc = of_property_read_u32(pdev->dev.of_node, "max-slices",
+ &drv_data->max_slices);
+ if (rc) {
+ dev_err(&pdev->dev, "Invalid max-slices dt entry\n");
+ devm_kfree(&pdev->dev, drv_data);
+ return rc;
+ }
+ drv_data->offsets = devm_kzalloc(dev, num_banks*sizeof(u32), GFP_KERNEL);
+ if (!drv_data->offsets) {
+ devm_kfree(&pdev->dev, drv_data);
+ return PTR_ERR(drv_data->offsets);
+ }
+
+ drv_data->offsets[0] = 0x0;
+ drv_data->offsets[1] = 0x80000;
+ drv_data->offsets[2] = 0x100000;
+ drv_data->offsets[3] = 0x180000;
+ drv_data->b_off = 0x200000;
+
+ drv_data->llcc_slice_map = kcalloc(BITS_TO_LONGS(drv_data->max_slices),
+ sizeof(unsigned long), GFP_KERNEL);
+
+ if (!drv_data->llcc_slice_map) {
+ devm_kfree(&pdev->dev, drv_data);
+ return PTR_ERR(drv_data->llcc_slice_map);
+ }
+
+ bitmap_zero(drv_data->llcc_slice_map, drv_data->max_slices);
+ drv_data->slice_data = llcc_cfg;
+ drv_data->llcc_config_data_sz = sz;
+ mutex_init(&drv_data->slice_mutex);
+ platform_set_drvdata(pdev, drv_data);
+
+ qcom_llcc_cfg_program(pdev);
+
+ return rc;
+}
+EXPORT_SYMBOL(qcom_llcc_probe);
+
+int qcom_llcc_remove(struct platform_device *pdev)
+{
+ static struct llcc_drv_data *drv_data;
+
+ drv_data = platform_get_drvdata(pdev);
+
+ mutex_destroy(&drv_data->slice_mutex);
+ kfree(drv_data->llcc_slice_map);
+ devm_kfree(&pdev->dev, drv_data);
+ platform_set_drvdata(pdev, NULL);
+
+ return 0;
+}
+EXPORT_SYMBOL(qcom_llcc_remove);
new file mode 100644
@@ -0,0 +1,178 @@
+/* Copyright (c) 2017-2018, 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.
+ */
+
+#ifndef __LLCC_QCOM__
+#define __LLCC_QCOM__
+
+/**
+ * llcc_slice_desc - Cache slice descriptor
+ * @llcc_slice_id: llcc slice id
+ * @llcc_slice_size: Size allocated for the llcc slice
+ * @dev: pointer to llcc device
+ */
+struct llcc_slice_desc {
+ int llcc_slice_id;
+ size_t llcc_slice_size;
+ struct device *dev;
+};
+
+/**
+ * llcc_slice_config - Data associated with the llcc slice
+ * @name: name of the use case associated with the llcc slice
+ * @usecase_id: usecase id for which the llcc slice is used
+ * @slice_id: llcc slice id assigned to each slice
+ * @max_cap: maximum capacity of the llcc slice
+ * @priority: priority of the llcc slice
+ * @fixed_size: whether the llcc slice can grow beyond its size
+ * @bonus_ways: bonus ways associated with llcc slice
+ * @res_ways: reserved ways associated with llcc slice
+ * @cache_mode: mode of the llcce slice
+ * @probe_target_ways: Probe only reserved and bonus ways on a cache miss
+ * @dis_cap_alloc: Disable capacity based allocation
+ * @retain_on_pc: Retain through power collapse
+ * @activate_on_init: activate the slice on init
+ */
+struct llcc_slice_config {
+ const char *name;
+ int usecase_id;
+ int slice_id;
+ u32 max_cap;
+ u32 priority;
+ bool fixed_size;
+ u32 bonus_ways;
+ u32 res_ways;
+ u32 cache_mode;
+ u32 probe_target_ways;
+ bool dis_cap_alloc;
+ bool retain_on_pc;
+ u32 activate_on_init;
+};
+
+/**
+ * llcc_drv_data - Data associated with the llcc driver
+ * @llcc_map: regmap associated with the llcc device
+ * @slice_data: pointer to the data structure associated with slice
+ * @slice_mutex: mutex associated with each slice
+ * @llcc_config_data_sz: size of the config data table
+ * @max_slices: max slices as read from device tree
+ * @b_off: Offset of the broadcast bank
+ * @num_banks: Number of llcc banks
+ * @llcc_slice_map: Bit map to track the active slice ids
+ * @offsets: Pointer to the bank offsets array
+ */
+
+struct llcc_drv_data {
+ struct regmap *llcc_map;
+ const struct llcc_slice_config *slice_data;
+ struct mutex slice_mutex;
+ u32 llcc_config_data_sz;
+ u32 max_slices;
+ u32 b_off;
+ u32 num_banks;
+ unsigned long *llcc_slice_map;
+ u32 *offsets;
+};
+
+
+#ifdef CONFIG_QCOM_LLCC
+/**
+ * llcc_slice_getd - get llcc slice descriptor
+ * @dev: Device pointer of the client
+ * @name: Name of the use case
+ */
+struct llcc_slice_desc *llcc_slice_getd(struct device *dev, const char *name);
+
+/**
+ * llcc_slice_putd - llcc slice descritpor
+ * @desc: Pointer to llcc slice descriptor
+ */
+void llcc_slice_putd(struct llcc_slice_desc *desc);
+
+/**
+ * llcc_get_slice_id - get slice id
+ * @desc: Pointer to llcc slice descriptor
+ */
+int llcc_get_slice_id(struct llcc_slice_desc *desc);
+
+/**
+ * llcc_get_slice_size - llcc slice size
+ * @desc: Pointer to llcc slice descriptor
+ */
+size_t llcc_get_slice_size(struct llcc_slice_desc *desc);
+
+/**
+ * llcc_slice_activate - Activate the llcc slice
+ * @desc: Pointer to llcc slice descriptor
+ */
+int llcc_slice_activate(struct llcc_slice_desc *desc);
+
+/**
+ * llcc_slice_deactivate - Deactivate the llcc slice
+ * @desc: Pointer to llcc slice descriptor
+ */
+int llcc_slice_deactivate(struct llcc_slice_desc *desc);
+
+/**
+ * qcom_llcc_probe - program the sct table
+ * @pdev: platform device pointer
+ * @table: soc sct table
+ */
+int qcom_llcc_probe(struct platform_device *pdev,
+ const struct llcc_slice_config *table, u32 sz);
+/**
+ * qcom_llcc_remove - clean up llcc driver
+ * @pdev: platform driver pointer
+ */
+int qcom_llcc_remove(struct platform_device *pdev);
+#else
+static inline struct llcc_slice_desc *llcc_slice_getd(struct device *dev,
+ const char *name)
+{
+ return NULL;
+}
+
+static inline void llcc_slice_putd(struct llcc_slice_desc *desc)
+{
+
+};
+
+static inline int llcc_get_slice_id(struct llcc_slice_desc *desc)
+{
+ return -EINVAL;
+}
+
+static inline size_t llcc_get_slice_size(struct llcc_slice_desc *desc)
+{
+ return 0;
+}
+static inline int llcc_slice_activate(struct llcc_slice_desc *desc)
+{
+ return -EINVAL;
+}
+
+static inline int llcc_slice_deactivate(struct llcc_slice_desc *desc)
+{
+ return -EINVAL;
+}
+static inline int qcom_llcc_probe(struct platform_device *pdev,
+ const struct llcc_slice_config *table, u32 sz)
+{
+ return -ENODEV;
+}
+
+static inline int qcom_llcc_remove(struct platform_device *pdev)
+{
+ return -ENODEV;
+}
+#endif
+
+#endif