| 1 | // SPDX-License-Identifier: GPL-2.0-only |
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| 2 | /* Altera TSE SGDMA and MSGDMA Linux driver |
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| 3 | * Copyright (C) 2014 Altera Corporation. All rights reserved |
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| 4 | */ |
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| 5 | |
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| 6 | #include "altera_tse.h" |
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| 7 | #include "altera_utils.h" |
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| 8 | |
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| 9 | void tse_set_bit(void __iomem *ioaddr, size_t offs, u32 bit_mask) |
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| 10 | { |
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| 11 | u32 value = csrrd32(mac: ioaddr, offs); |
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| 12 | value |= bit_mask; |
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| 13 | csrwr32(val: value, mac: ioaddr, offs); |
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| 14 | } |
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| 15 | |
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| 16 | void tse_clear_bit(void __iomem *ioaddr, size_t offs, u32 bit_mask) |
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| 17 | { |
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| 18 | u32 value = csrrd32(mac: ioaddr, offs); |
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| 19 | value &= ~bit_mask; |
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| 20 | csrwr32(val: value, mac: ioaddr, offs); |
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| 21 | } |
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| 22 | |
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| 23 | int tse_bit_is_set(void __iomem *ioaddr, size_t offs, u32 bit_mask) |
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| 24 | { |
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| 25 | u32 value = csrrd32(mac: ioaddr, offs); |
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| 26 | return (value & bit_mask) ? 1 : 0; |
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| 27 | } |
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| 28 | |
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| 29 | int tse_bit_is_clear(void __iomem *ioaddr, size_t offs, u32 bit_mask) |
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| 30 | { |
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| 31 | u32 value = csrrd32(mac: ioaddr, offs); |
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| 32 | return (value & bit_mask) ? 0 : 1; |
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| 33 | } |
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| 34 | |
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