linux/linux-5.18.11/drivers/net/ethernet/altera/altera_utils.c

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2024-03-22 18:12:32 +00:00
// SPDX-License-Identifier: GPL-2.0-only
/* Altera TSE SGDMA and MSGDMA Linux driver
* Copyright (C) 2014 Altera Corporation. All rights reserved
*/
#include "altera_tse.h"
#include "altera_utils.h"
void tse_set_bit(void __iomem *ioaddr, size_t offs, u32 bit_mask)
{
u32 value = csrrd32(ioaddr, offs);
value |= bit_mask;
csrwr32(value, ioaddr, offs);
}
void tse_clear_bit(void __iomem *ioaddr, size_t offs, u32 bit_mask)
{
u32 value = csrrd32(ioaddr, offs);
value &= ~bit_mask;
csrwr32(value, ioaddr, offs);
}
int tse_bit_is_set(void __iomem *ioaddr, size_t offs, u32 bit_mask)
{
u32 value = csrrd32(ioaddr, offs);
return (value & bit_mask) ? 1 : 0;
}
int tse_bit_is_clear(void __iomem *ioaddr, size_t offs, u32 bit_mask)
{
u32 value = csrrd32(ioaddr, offs);
return (value & bit_mask) ? 0 : 1;
}