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authorOlof Johansson <olof@lixom.net>2018-07-26 00:03:25 -0700
committerOlof Johansson <olof@lixom.net>2018-07-26 00:03:25 -0700
commitd7e832304366b8bd53b5e855d5169c38b93e587b (patch)
treec1b5f8e4abaf54d457bfd2de731650fdba4ba6ea /include/soc
parent1df88c683ea376a0499e195c2301eb8ce9668b77 (diff)
parent78ee559d7fc65e37670a46cfbeaaa62cb014af67 (diff)
downloadtalos-obmc-linux-d7e832304366b8bd53b5e855d5169c38b93e587b.tar.gz
talos-obmc-linux-d7e832304366b8bd53b5e855d5169c38b93e587b.zip
Merge tag 'qcom-drivers-for-4.19' of git://git.kernel.org/pub/scm/linux/kernel/git/agross/linux into next/drivers
Qualcomm ARM Based Driver Updates for v4.19 * Add Qualcomm LLCC driver * Add Qualcomm RPMH controller * Fix memleak in Qualcomm RMTFS * Add dummy qcom_scm_assign_mem() * Fix check for global partition in SMEM * tag 'qcom-drivers-for-4.19' of git://git.kernel.org/pub/scm/linux/kernel/git/agross/linux: soc: qcom: rmtfs-mem: fix memleak in probe error paths soc: qcom: llc-slice: Add missing MODULE_LICENSE() drivers: qcom: rpmh: fix unwanted error check for get_tcs_of_type() drivers: qcom: rpmh-rsc: fix the loop index check in get_req_from_tcs firmware: qcom: scm: add a dummy qcom_scm_assign_mem() drivers: qcom: rpmh-rsc: Check cmd_db_ready() to help children drivers: qcom: rpmh-rsc: allow active requests from wake TCS drivers: qcom: rpmh: add support for batch RPMH request drivers: qcom: rpmh: allow requests to be sent asynchronously drivers: qcom: rpmh: cache sleep/wake state requests drivers: qcom: rpmh-rsc: allow invalidation of sleep/wake TCS drivers: qcom: rpmh-rsc: write sleep/wake requests to TCS drivers: qcom: rpmh: add RPMH helper functions drivers: qcom: rpmh-rsc: log RPMH requests in FTRACE dt-bindings: introduce RPMH RSC bindings for Qualcomm SoCs drivers: qcom: rpmh-rsc: add RPMH controller for QCOM SoCs drivers: soc: Add LLCC driver dt-bindings: Documentation for qcom, llcc soc: qcom: smem: Correct check for global partition Signed-off-by: Olof Johansson <olof@lixom.net>
Diffstat (limited to 'include/soc')
-rw-r--r--include/soc/qcom/rpmh.h51
-rw-r--r--include/soc/qcom/tcs.h56
2 files changed, 107 insertions, 0 deletions
diff --git a/include/soc/qcom/rpmh.h b/include/soc/qcom/rpmh.h
new file mode 100644
index 000000000000..619e07c75da9
--- /dev/null
+++ b/include/soc/qcom/rpmh.h
@@ -0,0 +1,51 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (c) 2016-2018, The Linux Foundation. All rights reserved.
+ */
+
+#ifndef __SOC_QCOM_RPMH_H__
+#define __SOC_QCOM_RPMH_H__
+
+#include <soc/qcom/tcs.h>
+#include <linux/platform_device.h>
+
+
+#if IS_ENABLED(CONFIG_QCOM_RPMH)
+int rpmh_write(const struct device *dev, enum rpmh_state state,
+ const struct tcs_cmd *cmd, u32 n);
+
+int rpmh_write_async(const struct device *dev, enum rpmh_state state,
+ const struct tcs_cmd *cmd, u32 n);
+
+int rpmh_write_batch(const struct device *dev, enum rpmh_state state,
+ const struct tcs_cmd *cmd, u32 *n);
+
+int rpmh_flush(const struct device *dev);
+
+int rpmh_invalidate(const struct device *dev);
+
+#else
+
+static inline int rpmh_write(const struct device *dev, enum rpmh_state state,
+ const struct tcs_cmd *cmd, u32 n)
+{ return -ENODEV; }
+
+static inline int rpmh_write_async(const struct device *dev,
+ enum rpmh_state state,
+ const struct tcs_cmd *cmd, u32 n)
+{ return -ENODEV; }
+
+static inline int rpmh_write_batch(const struct device *dev,
+ enum rpmh_state state,
+ const struct tcs_cmd *cmd, u32 *n)
+{ return -ENODEV; }
+
+static inline int rpmh_flush(const struct device *dev)
+{ return -ENODEV; }
+
+static inline int rpmh_invalidate(const struct device *dev)
+{ return -ENODEV; }
+
+#endif /* CONFIG_QCOM_RPMH */
+
+#endif /* __SOC_QCOM_RPMH_H__ */
diff --git a/include/soc/qcom/tcs.h b/include/soc/qcom/tcs.h
new file mode 100644
index 000000000000..262876a59e86
--- /dev/null
+++ b/include/soc/qcom/tcs.h
@@ -0,0 +1,56 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (c) 2016-2018, The Linux Foundation. All rights reserved.
+ */
+
+#ifndef __SOC_QCOM_TCS_H__
+#define __SOC_QCOM_TCS_H__
+
+#define MAX_RPMH_PAYLOAD 16
+
+/**
+ * rpmh_state: state for the request
+ *
+ * RPMH_SLEEP_STATE: State of the resource when the processor subsystem
+ * is powered down. There is no client using the
+ * resource actively.
+ * RPMH_WAKE_ONLY_STATE: Resume resource state to the value previously
+ * requested before the processor was powered down.
+ * RPMH_ACTIVE_ONLY_STATE: Active or AMC mode requests. Resource state
+ * is aggregated immediately.
+ */
+enum rpmh_state {
+ RPMH_SLEEP_STATE,
+ RPMH_WAKE_ONLY_STATE,
+ RPMH_ACTIVE_ONLY_STATE,
+};
+
+/**
+ * struct tcs_cmd: an individual request to RPMH.
+ *
+ * @addr: the address of the resource slv_id:18:16 | offset:0:15
+ * @data: the resource state request
+ * @wait: wait for this request to be complete before sending the next
+ */
+struct tcs_cmd {
+ u32 addr;
+ u32 data;
+ u32 wait;
+};
+
+/**
+ * struct tcs_request: A set of tcs_cmds sent together in a TCS
+ *
+ * @state: state for the request.
+ * @wait_for_compl: wait until we get a response from the h/w accelerator
+ * @num_cmds: the number of @cmds in this request
+ * @cmds: an array of tcs_cmds
+ */
+struct tcs_request {
+ enum rpmh_state state;
+ u32 wait_for_compl;
+ u32 num_cmds;
+ struct tcs_cmd *cmds;
+};
+
+#endif /* __SOC_QCOM_TCS_H__ */
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