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70 lines
2.1 KiB
70 lines
2.1 KiB
# 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 instructions. |
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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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