71 lines
2.1 KiB
Plaintext
71 lines
2.1 KiB
Plaintext
# Digital Signal Processing (DSP) configuration options
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# Copyright (c) 2022 Synopsys
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# SPDX-License-Identifier: Apache-2.0
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menu "ARC DSP Options"
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depends on CPU_HAS_DSP
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config ARC_DSP
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bool "digital signal processing (DSP)"
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help
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This option enables DSP and DSP instructions.
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config ARC_DSP_TURNED_OFF
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bool "Turn off DSP if it presents"
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depends on !ARC_DSP
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help
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This option disables DSP block via resetting DSP_CRTL register.
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config DSP_SHARING
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bool "DSP register sharing"
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depends on ARC_DSP && MULTITHREADING
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select ARC_HAS_ACCL_REGS
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help
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This option enables preservation of the hardware DSP registers
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across context switches to allow multiple threads to perform concurrent
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DSP operations.
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config ARC_DSP_BFLY_SHARING
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bool "ARC complex DSP operation"
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depends on ARC_DSP && CPU_ARCEM
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help
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This option is to enable Zephyr to store and restore DSP_BFLY0
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and FFT_CTRL registers during context switch. This option is
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only required when butterfly instructions are used in
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multi-thread.
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config ARC_XY_ENABLE
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bool "ARC address generation unit registers"
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help
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Processors with XY memory and AGU registers can configure this
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option to accelerate DSP instrctions.
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config ARC_AGU_SHARING
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bool "ARC address generation unit register sharing"
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depends on ARC_XY_ENABLE && MULTITHREADING
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default y if DSP_SHARING
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help
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This option enables preservation of the hardware AGU registers
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across context switches to allow multiple threads to perform concurrent
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operations on XY memory. Save and restore small size AGU registers is
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set as default, including 4 address pointers regs, 2 address offset regs
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and 4 modifiers regs.
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config ARC_AGU_MEDIUM
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bool "ARC AGU medium size register"
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depends on ARC_AGU_SHARING
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help
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Save and restore medium AGU registers, including 8 address pointers regs,
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4 address offset regs and 12 modifiers regs.
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config ARC_AGU_LARGE
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bool "ARC AGU large size register"
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depends on ARC_AGU_SHARING
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select ARC_AGU_MEDIUM
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help
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Save and restore large AGU registers, including 12 address pointers regs,
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8 address offset regs and 24 modifiers regs.
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endmenu
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