d8e39b7062
System headers should be included with <...>, our own headers with
"...". Offenders tracked down with an ugly, brittle and probably
buggy Perl script. Previous iteration was commit a9c94277f0.
Delete inclusions of "string.h" and "strings.h" instead of fixing them
to <string.h> and <strings.h>, because we always include these via
osdep.h.
Put the cleaned up system header includes first.
While there, separate #include from file comment with exactly one
blank line.
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20180201111846.21846-2-armbru@redhat.com>
74 lines
3.3 KiB
C
74 lines
3.3 KiB
C
/*
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* Register Definition API: field macros
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*
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* Copyright (c) 2016 Xilinx Inc.
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* Copyright (c) 2013 Peter Crosthwaite <peter.crosthwaite@xilinx.com>
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*
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* This work is licensed under the terms of the GNU GPL, version 2. See
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* the COPYING file in the top-level directory.
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*/
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#ifndef REGISTERFIELDS_H
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#define REGISTERFIELDS_H
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#include "qemu/bitops.h"
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/* Define constants for a 32 bit register */
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/* This macro will define A_FOO, for the byte address of a register
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* as well as R_FOO for the uint32_t[] register number (A_FOO / 4).
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*/
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#define REG32(reg, addr) \
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enum { A_ ## reg = (addr) }; \
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enum { R_ ## reg = (addr) / 4 };
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/* Define SHIFT, LENGTH and MASK constants for a field within a register */
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/* This macro will define R_FOO_BAR_MASK, R_FOO_BAR_SHIFT and R_FOO_BAR_LENGTH
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* constants for field BAR in register FOO.
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*/
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#define FIELD(reg, field, shift, length) \
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enum { R_ ## reg ## _ ## field ## _SHIFT = (shift)}; \
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enum { R_ ## reg ## _ ## field ## _LENGTH = (length)}; \
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enum { R_ ## reg ## _ ## field ## _MASK = \
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MAKE_64BIT_MASK(shift, length)};
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/* Extract a field from a register */
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#define FIELD_EX32(storage, reg, field) \
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extract32((storage), R_ ## reg ## _ ## field ## _SHIFT, \
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R_ ## reg ## _ ## field ## _LENGTH)
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#define FIELD_EX64(storage, reg, field) \
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extract64((storage), R_ ## reg ## _ ## field ## _SHIFT, \
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R_ ## reg ## _ ## field ## _LENGTH)
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/* Extract a field from an array of registers */
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#define ARRAY_FIELD_EX32(regs, reg, field) \
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FIELD_EX32((regs)[R_ ## reg], reg, field)
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/* Deposit a register field.
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* Assigning values larger then the target field will result in
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* compilation warnings.
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*/
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#define FIELD_DP32(storage, reg, field, val) ({ \
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struct { \
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unsigned int v:R_ ## reg ## _ ## field ## _LENGTH; \
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} v = { .v = val }; \
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uint32_t d; \
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d = deposit32((storage), R_ ## reg ## _ ## field ## _SHIFT, \
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R_ ## reg ## _ ## field ## _LENGTH, v.v); \
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d; })
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#define FIELD_DP64(storage, reg, field, val) ({ \
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struct { \
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unsigned int v:R_ ## reg ## _ ## field ## _LENGTH; \
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} v = { .v = val }; \
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uint64_t d; \
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d = deposit64((storage), R_ ## reg ## _ ## field ## _SHIFT, \
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R_ ## reg ## _ ## field ## _LENGTH, v.v); \
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d; })
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/* Deposit a field to array of registers. */
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#define ARRAY_FIELD_DP32(regs, reg, field, val) \
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(regs)[R_ ## reg] = FIELD_DP32((regs)[R_ ## reg], reg, field, val);
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#endif
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