acmacros.h (f8146b882bc156c1d8ddf14bbea67253ebc064bb) acmacros.h (3920312eeb2e7efdf36defc51e24014a53c31bb0)
1/******************************************************************************
2 *
3 * Name: acmacros.h - C macros for the entire subsystem.
4 *
5 *****************************************************************************/
6
7/*
8 * Copyright (C) 2000 - 2016, Intel Corp.

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259#define ACPI_ROUND_UP_TO_1K(a) (((a) + 1023) >> 10)
260
261/* Generic (non-power-of-two) rounding */
262
263#define ACPI_ROUND_UP_TO(value, boundary) (((value) + ((boundary)-1)) / (boundary))
264
265#define ACPI_IS_MISALIGNED(value) (((ACPI_SIZE) value) & (sizeof(ACPI_SIZE)-1))
266
1/******************************************************************************
2 *
3 * Name: acmacros.h - C macros for the entire subsystem.
4 *
5 *****************************************************************************/
6
7/*
8 * Copyright (C) 2000 - 2016, Intel Corp.

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259#define ACPI_ROUND_UP_TO_1K(a) (((a) + 1023) >> 10)
260
261/* Generic (non-power-of-two) rounding */
262
263#define ACPI_ROUND_UP_TO(value, boundary) (((value) + ((boundary)-1)) / (boundary))
264
265#define ACPI_IS_MISALIGNED(value) (((ACPI_SIZE) value) & (sizeof(ACPI_SIZE)-1))
266
267/* Generic (power-of-two) rounding */
268
269#define ACPI_IS_POWER_OF_TWO(a) (((a) & ((a) - 1)) == 0)
270
271/*
272 * Bitmask creation
273 * Bit positions start at zero.
274 * MASK_BITS_ABOVE creates a mask starting AT the position and above
275 * MASK_BITS_BELOW creates a mask starting one bit BELOW the position
267/*
268 * Bitmask creation
269 * Bit positions start at zero.
270 * MASK_BITS_ABOVE creates a mask starting AT the position and above
271 * MASK_BITS_BELOW creates a mask starting one bit BELOW the position
276 * MASK_BITS_ABOVE/BELOW accpets a bit offset to create a mask
277 * MASK_BITS_ABOVE/BELOW_32/64 accpets a bit width to create a mask
278 * Note: The ACPI_INTEGER_BIT_SIZE check is used to bypass compiler
279 * differences with the shift operator
280 */
281#define ACPI_MASK_BITS_ABOVE(position) (~((ACPI_UINT64_MAX) << ((UINT32) (position))))
282#define ACPI_MASK_BITS_BELOW(position) ((ACPI_UINT64_MAX) << ((UINT32) (position)))
272 */
273#define ACPI_MASK_BITS_ABOVE(position) (~((ACPI_UINT64_MAX) << ((UINT32) (position))))
274#define ACPI_MASK_BITS_BELOW(position) ((ACPI_UINT64_MAX) << ((UINT32) (position)))
283#define ACPI_MASK_BITS_ABOVE_32(width) ((UINT32) ACPI_MASK_BITS_ABOVE(width))
284#define ACPI_MASK_BITS_BELOW_32(width) ((UINT32) ACPI_MASK_BITS_BELOW(width))
285#define ACPI_MASK_BITS_ABOVE_64(width) ((width) == ACPI_INTEGER_BIT_SIZE ? \
286 ACPI_UINT64_MAX : \
287 ACPI_MASK_BITS_ABOVE(width))
288#define ACPI_MASK_BITS_BELOW_64(width) ((width) == ACPI_INTEGER_BIT_SIZE ? \
289 (UINT64) 0 : \
290 ACPI_MASK_BITS_BELOW(width))
291
292/* Bitfields within ACPI registers */
293
294#define ACPI_REGISTER_PREPARE_BITS(Val, Pos, Mask) \
295 ((Val << Pos) & Mask)
296
297#define ACPI_REGISTER_INSERT_VALUE(Reg, Pos, Mask, Val) \
298 Reg = (Reg & (~(Mask))) | ACPI_REGISTER_PREPARE_BITS(Val, Pos, Mask)

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276/* Bitfields within ACPI registers */
277
278#define ACPI_REGISTER_PREPARE_BITS(Val, Pos, Mask) \
279 ((Val << Pos) & Mask)
280
281#define ACPI_REGISTER_INSERT_VALUE(Reg, Pos, Mask, Val) \
282 Reg = (Reg & (~(Mask))) | ACPI_REGISTER_PREPARE_BITS(Val, Pos, Mask)

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