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35 lines
762 B
C
35 lines
762 B
C
/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
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#ifndef _LINUX_MMIO_KHV_H
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#define _LINUX_MMIO_KHV_H
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#define KHV_STAT_OFF 0
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#define KHV_ADDR_OFF 8
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#define KHV_VAL_OFF 16
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/* REQ type*/
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#define INVAL 0
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#define START 1
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#define READY 2
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#define ACK 3
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#define IS_WRITE BIT(7)
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#define WIDTH_8 0
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#define WIDTH_16 1
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#define WIDTH_32 2
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#define WIDTH_64 3
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struct mmio_khv_device {
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void __iomem *base;
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volatile unsigned char __iomem *notify_host_reg;
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u32 notify_host_reg_val;
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volatile unsigned char __iomem *notify_guest_reg;
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u32 notify_guest_reg_clr;
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};
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u64 readx(u32 offset, u32 bw);
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void writex(u64 val, u32 offset, u32 bw);
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void khv_shutdown(void);
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#endif
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