disable FB

hc

2024-01-04 1543e317f1da31b75942316931e8f491a8920811

 kernel/drivers/gpu/arm/bifrost/csf/mali_kbase_csf_tl_reader.h
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@@ -1,7 +1,7 @@
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 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
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 /*
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  *
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- * (C) COPYRIGHT 2019-2021 ARM Limited. All rights reserved.
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+ * (C) COPYRIGHT 2019-2023 ARM Limited. All rights reserved.
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  *
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  * This program is free software and is provided to you under the terms of the
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  * GNU General Public License version 2 as published by the Free Software
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@@ -40,38 +40,6 @@
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 struct kbase_device;
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 /**
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- * struct kbase_ts_converter -
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- * System timestamp to CPU timestamp converter state.
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- *
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- * @multiplier:	Numerator of the converter's fraction.
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- * @divisor:	Denominator of the converter's fraction.
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- * @offset:	Converter's offset term.
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- *
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- * According to Generic timer spec, system timer:
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- * - Increments at a fixed frequency
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- * - Starts operating from zero
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- *
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- * Hence CPU time is a linear function of System Time.
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- *
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- * CPU_ts = alpha * SYS_ts + beta
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- *
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- * Where
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- * - alpha = 10^9/SYS_ts_freq
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- * - beta is calculated by two timer samples taken at the same time:
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- *   beta = CPU_ts_s - SYS_ts_s * alpha
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- *
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- * Since alpha is a rational number, we minimizing possible
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- * rounding error by simplifying the ratio. Thus alpha is stored
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- * as a simple `multiplier / divisor` ratio.
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- *
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- */
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-struct kbase_ts_converter {
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-	u64 multiplier;
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-	u64 divisor;
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-	s64 offset;
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-};
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-
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-/**
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  * struct kbase_csf_tl_reader - CSFFW timeline reader state.
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  *
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  * @read_timer:        Timer used for periodical tracebufer reading.
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@@ -107,7 +75,6 @@
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 		size_t size;
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 		size_t btc;
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 	} tl_header;
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-	struct kbase_ts_converter ts_converter;
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 	bool got_first_event;
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 	bool is_active;
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@@ -134,19 +101,16 @@
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 void kbase_csf_tl_reader_term(struct kbase_csf_tl_reader *self);
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 /**
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- *  kbase_csf_tl_reader_flush_buffer() -
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- *   Flush trace from buffer into CSFFW timeline stream.
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+ *  kbase_csf_tl_reader_flush_buffer() - Flush trace from buffer into CSFFW timeline stream.
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  *
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  * @self:    CSFFW TL Reader instance.
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  *
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  * Return: Zero on success, negative error code (EBUSY) otherwise
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  */
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-
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 int kbase_csf_tl_reader_flush_buffer(struct kbase_csf_tl_reader *self);
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 /**
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- * kbase_csf_tl_reader_start() -
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- *	Start asynchronous copying of CSFFW timeline stream.
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+ * kbase_csf_tl_reader_start() - Start asynchronous copying of CSFFW timeline stream.
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  *
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  * @self:	CSFFW TL Reader instance.
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  * @kbdev:	Kbase device.
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@@ -157,8 +121,7 @@
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 	struct kbase_device *kbdev);
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 /**
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- * kbase_csf_tl_reader_stop() -
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- *	Stop asynchronous copying of CSFFW timeline stream.
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+ * kbase_csf_tl_reader_stop() - Stop asynchronous copying of CSFFW timeline stream.
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  *
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  * @self:	CSFFW TL Reader instance.
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  */
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@@ -166,8 +129,7 @@
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 #if IS_ENABLED(CONFIG_DEBUG_FS)
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 /**
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- * kbase_csf_tl_reader_debugfs_init() -
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- *	Initialize debugfs for CSFFW Timelime Stream Reader.
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+ * kbase_csf_tl_reader_debugfs_init() - Initialize debugfs for CSFFW Timelime Stream Reader.
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  *
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  * @kbdev:	Kbase device.
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  */
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@@ -175,8 +137,7 @@
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 #endif
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 /**
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- * kbase_csf_tl_reader_reset() -
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- *	Reset CSFFW timeline reader, it should be called before reset CSFFW.
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+ * kbase_csf_tl_reader_reset() - Reset CSFFW timeline reader, it should be called before reset CSFFW.
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  *
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  * @self:	CSFFW TL Reader instance.
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  */