Merge "drivers: soc: Add support for SM6150 llcc driver"

drivers/soc/qcom/Kconfig

@@ -221,6 +221,15 @@ config QCOM_SDMSHRIKE_LLCC
 	  can start using the LLCC slices.
 	  If unsure, say n.
 
+config QCOM_SM6150_LLCC
+	tristate "Qualcomm Technologies, Inc. SM6150 LLCC driver"
+	depends on QCOM_LLCC
+	help
+	  Say yes here to enable the LLCC driver for SM6150. This is 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

drivers/soc/qcom/Makefile

@@ -46,6 +46,7 @@ obj-$(CONFIG_QCOM_SHIMA_LLCC) += llcc-shima.o
 obj-$(CONFIG_QCOM_YUPIK_LLCC) += llcc-yupik.o
 obj-$(CONFIG_QCOM_SM8150_LLCC) += llcc-sm8150.o
 obj-$(CONFIG_QCOM_SDMSHRIKE_LLCC) += llcc-sdmshrike.o
+obj-$(CONFIG_QCOM_SM6150_LLCC) += llcc-sm6150.o
 obj-$(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 mem_buf_dma_buf.o

drivers/soc/qcom/llcc-sm6150.c

@@ -0,0 +1,92 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (c) 2017-2018,2020 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
+ * 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 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 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 sm6150_data[] =  {
+	SCT_ENTRY(LLCC_CPUSS,    1, 1, 128, 1, 0, 0xF, 0x0, 0, 0, 0, 1, 1),
+	SCT_ENTRY(LLCC_MDM,      8, 8, 256, 0, 1, 0xF, 0x0, 0, 0, 0, 1, 0),
+	SCT_ENTRY(LLCC_GPUHTW,   11, 11, 128, 1, 1, 0xF, 0x0, 0, 0, 0, 1, 0),
+	SCT_ENTRY(LLCC_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",
+		.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");