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1/* SPDX-License-Identifier: GPL-2.0-only */2/****************************************************************************3 * Driver for Solarflare network controllers and boards4 * Copyright 2005-2006 Fen Systems Ltd.5 * Copyright 2006-2013 Solarflare Communications Inc.6 */7 8#ifndef EF4_BITFIELD_H9#define EF4_BITFIELD_H10 11/*12 * Efx bitfield access13 *14 * Efx NICs make extensive use of bitfields up to 128 bits15 * wide. Since there is no native 128-bit datatype on most systems,16 * and since 64-bit datatypes are inefficient on 32-bit systems and17 * vice versa, we wrap accesses in a way that uses the most efficient18 * datatype.19 *20 * The NICs are PCI devices and therefore little-endian. Since most21 * of the quantities that we deal with are DMAed to/from host memory,22 * we define our datatypes (ef4_oword_t, ef4_qword_t and23 * ef4_dword_t) to be little-endian.24 */25 26/* Lowest bit numbers and widths */27#define EF4_DUMMY_FIELD_LBN 028#define EF4_DUMMY_FIELD_WIDTH 029#define EF4_WORD_0_LBN 030#define EF4_WORD_0_WIDTH 1631#define EF4_WORD_1_LBN 1632#define EF4_WORD_1_WIDTH 1633#define EF4_DWORD_0_LBN 034#define EF4_DWORD_0_WIDTH 3235#define EF4_DWORD_1_LBN 3236#define EF4_DWORD_1_WIDTH 3237#define EF4_DWORD_2_LBN 6438#define EF4_DWORD_2_WIDTH 3239#define EF4_DWORD_3_LBN 9640#define EF4_DWORD_3_WIDTH 3241#define EF4_QWORD_0_LBN 042#define EF4_QWORD_0_WIDTH 6443 44/* Specified attribute (e.g. LBN) of the specified field */45#define EF4_VAL(field, attribute) field ## _ ## attribute46/* Low bit number of the specified field */47#define EF4_LOW_BIT(field) EF4_VAL(field, LBN)48/* Bit width of the specified field */49#define EF4_WIDTH(field) EF4_VAL(field, WIDTH)50/* High bit number of the specified field */51#define EF4_HIGH_BIT(field) (EF4_LOW_BIT(field) + EF4_WIDTH(field) - 1)52/* Mask equal in width to the specified field.53 *54 * For example, a field with width 5 would have a mask of 0x1f.55 *56 * The maximum width mask that can be generated is 64 bits.57 */58#define EF4_MASK64(width) \59 ((width) == 64 ? ~((u64) 0) : \60 (((((u64) 1) << (width))) - 1))61 62/* Mask equal in width to the specified field.63 *64 * For example, a field with width 5 would have a mask of 0x1f.65 *66 * The maximum width mask that can be generated is 32 bits. Use67 * EF4_MASK64 for higher width fields.68 */69#define EF4_MASK32(width) \70 ((width) == 32 ? ~((u32) 0) : \71 (((((u32) 1) << (width))) - 1))72 73/* A doubleword (i.e. 4 byte) datatype - little-endian in HW */74typedef union ef4_dword {75 __le32 u32[1];76} ef4_dword_t;77 78/* A quadword (i.e. 8 byte) datatype - little-endian in HW */79typedef union ef4_qword {80 __le64 u64[1];81 __le32 u32[2];82 ef4_dword_t dword[2];83} ef4_qword_t;84 85/* An octword (eight-word, i.e. 16 byte) datatype - little-endian in HW */86typedef union ef4_oword {87 __le64 u64[2];88 ef4_qword_t qword[2];89 __le32 u32[4];90 ef4_dword_t dword[4];91} ef4_oword_t;92 93/* Format string and value expanders for printk */94#define EF4_DWORD_FMT "%08x"95#define EF4_QWORD_FMT "%08x:%08x"96#define EF4_OWORD_FMT "%08x:%08x:%08x:%08x"97#define EF4_DWORD_VAL(dword) \98 ((unsigned int) le32_to_cpu((dword).u32[0]))99#define EF4_QWORD_VAL(qword) \100 ((unsigned int) le32_to_cpu((qword).u32[1])), \101 ((unsigned int) le32_to_cpu((qword).u32[0]))102#define EF4_OWORD_VAL(oword) \103 ((unsigned int) le32_to_cpu((oword).u32[3])), \104 ((unsigned int) le32_to_cpu((oword).u32[2])), \105 ((unsigned int) le32_to_cpu((oword).u32[1])), \106 ((unsigned int) le32_to_cpu((oword).u32[0]))107 108/*109 * Extract bit field portion [low,high) from the native-endian element110 * which contains bits [min,max).111 *112 * For example, suppose "element" represents the high 32 bits of a113 * 64-bit value, and we wish to extract the bits belonging to the bit114 * field occupying bits 28-45 of this 64-bit value.115 *116 * Then EF4_EXTRACT ( element, 32, 63, 28, 45 ) would give117 *118 * ( element ) << 4119 *120 * The result will contain the relevant bits filled in the range121 * [0,high-low), with garbage in bits [high-low+1,...).122 */123#define EF4_EXTRACT_NATIVE(native_element, min, max, low, high) \124 ((low) > (max) || (high) < (min) ? 0 : \125 (low) > (min) ? \126 (native_element) >> ((low) - (min)) : \127 (native_element) << ((min) - (low)))128 129/*130 * Extract bit field portion [low,high) from the 64-bit little-endian131 * element which contains bits [min,max)132 */133#define EF4_EXTRACT64(element, min, max, low, high) \134 EF4_EXTRACT_NATIVE(le64_to_cpu(element), min, max, low, high)135 136/*137 * Extract bit field portion [low,high) from the 32-bit little-endian138 * element which contains bits [min,max)139 */140#define EF4_EXTRACT32(element, min, max, low, high) \141 EF4_EXTRACT_NATIVE(le32_to_cpu(element), min, max, low, high)142 143#define EF4_EXTRACT_OWORD64(oword, low, high) \144 ((EF4_EXTRACT64((oword).u64[0], 0, 63, low, high) | \145 EF4_EXTRACT64((oword).u64[1], 64, 127, low, high)) & \146 EF4_MASK64((high) + 1 - (low)))147 148#define EF4_EXTRACT_QWORD64(qword, low, high) \149 (EF4_EXTRACT64((qword).u64[0], 0, 63, low, high) & \150 EF4_MASK64((high) + 1 - (low)))151 152#define EF4_EXTRACT_OWORD32(oword, low, high) \153 ((EF4_EXTRACT32((oword).u32[0], 0, 31, low, high) | \154 EF4_EXTRACT32((oword).u32[1], 32, 63, low, high) | \155 EF4_EXTRACT32((oword).u32[2], 64, 95, low, high) | \156 EF4_EXTRACT32((oword).u32[3], 96, 127, low, high)) & \157 EF4_MASK32((high) + 1 - (low)))158 159#define EF4_EXTRACT_QWORD32(qword, low, high) \160 ((EF4_EXTRACT32((qword).u32[0], 0, 31, low, high) | \161 EF4_EXTRACT32((qword).u32[1], 32, 63, low, high)) & \162 EF4_MASK32((high) + 1 - (low)))163 164#define EF4_EXTRACT_DWORD(dword, low, high) \165 (EF4_EXTRACT32((dword).u32[0], 0, 31, low, high) & \166 EF4_MASK32((high) + 1 - (low)))167 168#define EF4_OWORD_FIELD64(oword, field) \169 EF4_EXTRACT_OWORD64(oword, EF4_LOW_BIT(field), \170 EF4_HIGH_BIT(field))171 172#define EF4_QWORD_FIELD64(qword, field) \173 EF4_EXTRACT_QWORD64(qword, EF4_LOW_BIT(field), \174 EF4_HIGH_BIT(field))175 176#define EF4_OWORD_FIELD32(oword, field) \177 EF4_EXTRACT_OWORD32(oword, EF4_LOW_BIT(field), \178 EF4_HIGH_BIT(field))179 180#define EF4_QWORD_FIELD32(qword, field) \181 EF4_EXTRACT_QWORD32(qword, EF4_LOW_BIT(field), \182 EF4_HIGH_BIT(field))183 184#define EF4_DWORD_FIELD(dword, field) \185 EF4_EXTRACT_DWORD(dword, EF4_LOW_BIT(field), \186 EF4_HIGH_BIT(field))187 188#define EF4_OWORD_IS_ZERO64(oword) \189 (((oword).u64[0] | (oword).u64[1]) == (__force __le64) 0)190 191#define EF4_QWORD_IS_ZERO64(qword) \192 (((qword).u64[0]) == (__force __le64) 0)193 194#define EF4_OWORD_IS_ZERO32(oword) \195 (((oword).u32[0] | (oword).u32[1] | (oword).u32[2] | (oword).u32[3]) \196 == (__force __le32) 0)197 198#define EF4_QWORD_IS_ZERO32(qword) \199 (((qword).u32[0] | (qword).u32[1]) == (__force __le32) 0)200 201#define EF4_DWORD_IS_ZERO(dword) \202 (((dword).u32[0]) == (__force __le32) 0)203 204#define EF4_OWORD_IS_ALL_ONES64(oword) \205 (((oword).u64[0] & (oword).u64[1]) == ~((__force __le64) 0))206 207#define EF4_QWORD_IS_ALL_ONES64(qword) \208 ((qword).u64[0] == ~((__force __le64) 0))209 210#define EF4_OWORD_IS_ALL_ONES32(oword) \211 (((oword).u32[0] & (oword).u32[1] & (oword).u32[2] & (oword).u32[3]) \212 == ~((__force __le32) 0))213 214#define EF4_QWORD_IS_ALL_ONES32(qword) \215 (((qword).u32[0] & (qword).u32[1]) == ~((__force __le32) 0))216 217#define EF4_DWORD_IS_ALL_ONES(dword) \218 ((dword).u32[0] == ~((__force __le32) 0))219 220#if BITS_PER_LONG == 64221#define EF4_OWORD_FIELD EF4_OWORD_FIELD64222#define EF4_QWORD_FIELD EF4_QWORD_FIELD64223#define EF4_OWORD_IS_ZERO EF4_OWORD_IS_ZERO64224#define EF4_QWORD_IS_ZERO EF4_QWORD_IS_ZERO64225#define EF4_OWORD_IS_ALL_ONES EF4_OWORD_IS_ALL_ONES64226#define EF4_QWORD_IS_ALL_ONES EF4_QWORD_IS_ALL_ONES64227#else228#define EF4_OWORD_FIELD EF4_OWORD_FIELD32229#define EF4_QWORD_FIELD EF4_QWORD_FIELD32230#define EF4_OWORD_IS_ZERO EF4_OWORD_IS_ZERO32231#define EF4_QWORD_IS_ZERO EF4_QWORD_IS_ZERO32232#define EF4_OWORD_IS_ALL_ONES EF4_OWORD_IS_ALL_ONES32233#define EF4_QWORD_IS_ALL_ONES EF4_QWORD_IS_ALL_ONES32234#endif235 236/*237 * Construct bit field portion238 *239 * Creates the portion of the bit field [low,high) that lies within240 * the range [min,max).241 */242#define EF4_INSERT_NATIVE64(min, max, low, high, value) \243 (((low > max) || (high < min)) ? 0 : \244 ((low > min) ? \245 (((u64) (value)) << (low - min)) : \246 (((u64) (value)) >> (min - low))))247 248#define EF4_INSERT_NATIVE32(min, max, low, high, value) \249 (((low > max) || (high < min)) ? 0 : \250 ((low > min) ? \251 (((u32) (value)) << (low - min)) : \252 (((u32) (value)) >> (min - low))))253 254#define EF4_INSERT_NATIVE(min, max, low, high, value) \255 ((((max - min) >= 32) || ((high - low) >= 32)) ? \256 EF4_INSERT_NATIVE64(min, max, low, high, value) : \257 EF4_INSERT_NATIVE32(min, max, low, high, value))258 259/*260 * Construct bit field portion261 *262 * Creates the portion of the named bit field that lies within the263 * range [min,max).264 */265#define EF4_INSERT_FIELD_NATIVE(min, max, field, value) \266 EF4_INSERT_NATIVE(min, max, EF4_LOW_BIT(field), \267 EF4_HIGH_BIT(field), value)268 269/*270 * Construct bit field271 *272 * Creates the portion of the named bit fields that lie within the273 * range [min,max).274 */275#define EF4_INSERT_FIELDS_NATIVE(min, max, \276 field1, value1, \277 field2, value2, \278 field3, value3, \279 field4, value4, \280 field5, value5, \281 field6, value6, \282 field7, value7, \283 field8, value8, \284 field9, value9, \285 field10, value10) \286 (EF4_INSERT_FIELD_NATIVE((min), (max), field1, (value1)) | \287 EF4_INSERT_FIELD_NATIVE((min), (max), field2, (value2)) | \288 EF4_INSERT_FIELD_NATIVE((min), (max), field3, (value3)) | \289 EF4_INSERT_FIELD_NATIVE((min), (max), field4, (value4)) | \290 EF4_INSERT_FIELD_NATIVE((min), (max), field5, (value5)) | \291 EF4_INSERT_FIELD_NATIVE((min), (max), field6, (value6)) | \292 EF4_INSERT_FIELD_NATIVE((min), (max), field7, (value7)) | \293 EF4_INSERT_FIELD_NATIVE((min), (max), field8, (value8)) | \294 EF4_INSERT_FIELD_NATIVE((min), (max), field9, (value9)) | \295 EF4_INSERT_FIELD_NATIVE((min), (max), field10, (value10)))296 297#define EF4_INSERT_FIELDS64(...) \298 cpu_to_le64(EF4_INSERT_FIELDS_NATIVE(__VA_ARGS__))299 300#define EF4_INSERT_FIELDS32(...) \301 cpu_to_le32(EF4_INSERT_FIELDS_NATIVE(__VA_ARGS__))302 303#define EF4_POPULATE_OWORD64(oword, ...) do { \304 (oword).u64[0] = EF4_INSERT_FIELDS64(0, 63, __VA_ARGS__); \305 (oword).u64[1] = EF4_INSERT_FIELDS64(64, 127, __VA_ARGS__); \306 } while (0)307 308#define EF4_POPULATE_QWORD64(qword, ...) do { \309 (qword).u64[0] = EF4_INSERT_FIELDS64(0, 63, __VA_ARGS__); \310 } while (0)311 312#define EF4_POPULATE_OWORD32(oword, ...) do { \313 (oword).u32[0] = EF4_INSERT_FIELDS32(0, 31, __VA_ARGS__); \314 (oword).u32[1] = EF4_INSERT_FIELDS32(32, 63, __VA_ARGS__); \315 (oword).u32[2] = EF4_INSERT_FIELDS32(64, 95, __VA_ARGS__); \316 (oword).u32[3] = EF4_INSERT_FIELDS32(96, 127, __VA_ARGS__); \317 } while (0)318 319#define EF4_POPULATE_QWORD32(qword, ...) do { \320 (qword).u32[0] = EF4_INSERT_FIELDS32(0, 31, __VA_ARGS__); \321 (qword).u32[1] = EF4_INSERT_FIELDS32(32, 63, __VA_ARGS__); \322 } while (0)323 324#define EF4_POPULATE_DWORD(dword, ...) do { \325 (dword).u32[0] = EF4_INSERT_FIELDS32(0, 31, __VA_ARGS__); \326 } while (0)327 328#if BITS_PER_LONG == 64329#define EF4_POPULATE_OWORD EF4_POPULATE_OWORD64330#define EF4_POPULATE_QWORD EF4_POPULATE_QWORD64331#else332#define EF4_POPULATE_OWORD EF4_POPULATE_OWORD32333#define EF4_POPULATE_QWORD EF4_POPULATE_QWORD32334#endif335 336/* Populate an octword field with various numbers of arguments */337#define EF4_POPULATE_OWORD_10 EF4_POPULATE_OWORD338#define EF4_POPULATE_OWORD_9(oword, ...) \339 EF4_POPULATE_OWORD_10(oword, EF4_DUMMY_FIELD, 0, __VA_ARGS__)340#define EF4_POPULATE_OWORD_8(oword, ...) \341 EF4_POPULATE_OWORD_9(oword, EF4_DUMMY_FIELD, 0, __VA_ARGS__)342#define EF4_POPULATE_OWORD_7(oword, ...) \343 EF4_POPULATE_OWORD_8(oword, EF4_DUMMY_FIELD, 0, __VA_ARGS__)344#define EF4_POPULATE_OWORD_6(oword, ...) \345 EF4_POPULATE_OWORD_7(oword, EF4_DUMMY_FIELD, 0, __VA_ARGS__)346#define EF4_POPULATE_OWORD_5(oword, ...) \347 EF4_POPULATE_OWORD_6(oword, EF4_DUMMY_FIELD, 0, __VA_ARGS__)348#define EF4_POPULATE_OWORD_4(oword, ...) \349 EF4_POPULATE_OWORD_5(oword, EF4_DUMMY_FIELD, 0, __VA_ARGS__)350#define EF4_POPULATE_OWORD_3(oword, ...) \351 EF4_POPULATE_OWORD_4(oword, EF4_DUMMY_FIELD, 0, __VA_ARGS__)352#define EF4_POPULATE_OWORD_2(oword, ...) \353 EF4_POPULATE_OWORD_3(oword, EF4_DUMMY_FIELD, 0, __VA_ARGS__)354#define EF4_POPULATE_OWORD_1(oword, ...) \355 EF4_POPULATE_OWORD_2(oword, EF4_DUMMY_FIELD, 0, __VA_ARGS__)356#define EF4_ZERO_OWORD(oword) \357 EF4_POPULATE_OWORD_1(oword, EF4_DUMMY_FIELD, 0)358#define EF4_SET_OWORD(oword) \359 EF4_POPULATE_OWORD_4(oword, \360 EF4_DWORD_0, 0xffffffff, \361 EF4_DWORD_1, 0xffffffff, \362 EF4_DWORD_2, 0xffffffff, \363 EF4_DWORD_3, 0xffffffff)364 365/* Populate a quadword field with various numbers of arguments */366#define EF4_POPULATE_QWORD_10 EF4_POPULATE_QWORD367#define EF4_POPULATE_QWORD_9(qword, ...) \368 EF4_POPULATE_QWORD_10(qword, EF4_DUMMY_FIELD, 0, __VA_ARGS__)369#define EF4_POPULATE_QWORD_8(qword, ...) \370 EF4_POPULATE_QWORD_9(qword, EF4_DUMMY_FIELD, 0, __VA_ARGS__)371#define EF4_POPULATE_QWORD_7(qword, ...) \372 EF4_POPULATE_QWORD_8(qword, EF4_DUMMY_FIELD, 0, __VA_ARGS__)373#define EF4_POPULATE_QWORD_6(qword, ...) \374 EF4_POPULATE_QWORD_7(qword, EF4_DUMMY_FIELD, 0, __VA_ARGS__)375#define EF4_POPULATE_QWORD_5(qword, ...) \376 EF4_POPULATE_QWORD_6(qword, EF4_DUMMY_FIELD, 0, __VA_ARGS__)377#define EF4_POPULATE_QWORD_4(qword, ...) \378 EF4_POPULATE_QWORD_5(qword, EF4_DUMMY_FIELD, 0, __VA_ARGS__)379#define EF4_POPULATE_QWORD_3(qword, ...) \380 EF4_POPULATE_QWORD_4(qword, EF4_DUMMY_FIELD, 0, __VA_ARGS__)381#define EF4_POPULATE_QWORD_2(qword, ...) \382 EF4_POPULATE_QWORD_3(qword, EF4_DUMMY_FIELD, 0, __VA_ARGS__)383#define EF4_POPULATE_QWORD_1(qword, ...) \384 EF4_POPULATE_QWORD_2(qword, EF4_DUMMY_FIELD, 0, __VA_ARGS__)385#define EF4_ZERO_QWORD(qword) \386 EF4_POPULATE_QWORD_1(qword, EF4_DUMMY_FIELD, 0)387#define EF4_SET_QWORD(qword) \388 EF4_POPULATE_QWORD_2(qword, \389 EF4_DWORD_0, 0xffffffff, \390 EF4_DWORD_1, 0xffffffff)391 392/* Populate a dword field with various numbers of arguments */393#define EF4_POPULATE_DWORD_10 EF4_POPULATE_DWORD394#define EF4_POPULATE_DWORD_9(dword, ...) \395 EF4_POPULATE_DWORD_10(dword, EF4_DUMMY_FIELD, 0, __VA_ARGS__)396#define EF4_POPULATE_DWORD_8(dword, ...) \397 EF4_POPULATE_DWORD_9(dword, EF4_DUMMY_FIELD, 0, __VA_ARGS__)398#define EF4_POPULATE_DWORD_7(dword, ...) \399 EF4_POPULATE_DWORD_8(dword, EF4_DUMMY_FIELD, 0, __VA_ARGS__)400#define EF4_POPULATE_DWORD_6(dword, ...) \401 EF4_POPULATE_DWORD_7(dword, EF4_DUMMY_FIELD, 0, __VA_ARGS__)402#define EF4_POPULATE_DWORD_5(dword, ...) \403 EF4_POPULATE_DWORD_6(dword, EF4_DUMMY_FIELD, 0, __VA_ARGS__)404#define EF4_POPULATE_DWORD_4(dword, ...) \405 EF4_POPULATE_DWORD_5(dword, EF4_DUMMY_FIELD, 0, __VA_ARGS__)406#define EF4_POPULATE_DWORD_3(dword, ...) \407 EF4_POPULATE_DWORD_4(dword, EF4_DUMMY_FIELD, 0, __VA_ARGS__)408#define EF4_POPULATE_DWORD_2(dword, ...) \409 EF4_POPULATE_DWORD_3(dword, EF4_DUMMY_FIELD, 0, __VA_ARGS__)410#define EF4_POPULATE_DWORD_1(dword, ...) \411 EF4_POPULATE_DWORD_2(dword, EF4_DUMMY_FIELD, 0, __VA_ARGS__)412#define EF4_ZERO_DWORD(dword) \413 EF4_POPULATE_DWORD_1(dword, EF4_DUMMY_FIELD, 0)414#define EF4_SET_DWORD(dword) \415 EF4_POPULATE_DWORD_1(dword, EF4_DWORD_0, 0xffffffff)416 417/*418 * Modify a named field within an already-populated structure. Used419 * for read-modify-write operations.420 *421 */422#define EF4_INVERT_OWORD(oword) do { \423 (oword).u64[0] = ~((oword).u64[0]); \424 (oword).u64[1] = ~((oword).u64[1]); \425 } while (0)426 427#define EF4_AND_OWORD(oword, from, mask) \428 do { \429 (oword).u64[0] = (from).u64[0] & (mask).u64[0]; \430 (oword).u64[1] = (from).u64[1] & (mask).u64[1]; \431 } while (0)432 433#define EF4_OR_OWORD(oword, from, mask) \434 do { \435 (oword).u64[0] = (from).u64[0] | (mask).u64[0]; \436 (oword).u64[1] = (from).u64[1] | (mask).u64[1]; \437 } while (0)438 439#define EF4_INSERT64(min, max, low, high, value) \440 cpu_to_le64(EF4_INSERT_NATIVE(min, max, low, high, value))441 442#define EF4_INSERT32(min, max, low, high, value) \443 cpu_to_le32(EF4_INSERT_NATIVE(min, max, low, high, value))444 445#define EF4_INPLACE_MASK64(min, max, low, high) \446 EF4_INSERT64(min, max, low, high, EF4_MASK64((high) + 1 - (low)))447 448#define EF4_INPLACE_MASK32(min, max, low, high) \449 EF4_INSERT32(min, max, low, high, EF4_MASK32((high) + 1 - (low)))450 451#define EF4_SET_OWORD64(oword, low, high, value) do { \452 (oword).u64[0] = (((oword).u64[0] \453 & ~EF4_INPLACE_MASK64(0, 63, low, high)) \454 | EF4_INSERT64(0, 63, low, high, value)); \455 (oword).u64[1] = (((oword).u64[1] \456 & ~EF4_INPLACE_MASK64(64, 127, low, high)) \457 | EF4_INSERT64(64, 127, low, high, value)); \458 } while (0)459 460#define EF4_SET_QWORD64(qword, low, high, value) do { \461 (qword).u64[0] = (((qword).u64[0] \462 & ~EF4_INPLACE_MASK64(0, 63, low, high)) \463 | EF4_INSERT64(0, 63, low, high, value)); \464 } while (0)465 466#define EF4_SET_OWORD32(oword, low, high, value) do { \467 (oword).u32[0] = (((oword).u32[0] \468 & ~EF4_INPLACE_MASK32(0, 31, low, high)) \469 | EF4_INSERT32(0, 31, low, high, value)); \470 (oword).u32[1] = (((oword).u32[1] \471 & ~EF4_INPLACE_MASK32(32, 63, low, high)) \472 | EF4_INSERT32(32, 63, low, high, value)); \473 (oword).u32[2] = (((oword).u32[2] \474 & ~EF4_INPLACE_MASK32(64, 95, low, high)) \475 | EF4_INSERT32(64, 95, low, high, value)); \476 (oword).u32[3] = (((oword).u32[3] \477 & ~EF4_INPLACE_MASK32(96, 127, low, high)) \478 | EF4_INSERT32(96, 127, low, high, value)); \479 } while (0)480 481#define EF4_SET_QWORD32(qword, low, high, value) do { \482 (qword).u32[0] = (((qword).u32[0] \483 & ~EF4_INPLACE_MASK32(0, 31, low, high)) \484 | EF4_INSERT32(0, 31, low, high, value)); \485 (qword).u32[1] = (((qword).u32[1] \486 & ~EF4_INPLACE_MASK32(32, 63, low, high)) \487 | EF4_INSERT32(32, 63, low, high, value)); \488 } while (0)489 490#define EF4_SET_DWORD32(dword, low, high, value) do { \491 (dword).u32[0] = (((dword).u32[0] \492 & ~EF4_INPLACE_MASK32(0, 31, low, high)) \493 | EF4_INSERT32(0, 31, low, high, value)); \494 } while (0)495 496#define EF4_SET_OWORD_FIELD64(oword, field, value) \497 EF4_SET_OWORD64(oword, EF4_LOW_BIT(field), \498 EF4_HIGH_BIT(field), value)499 500#define EF4_SET_QWORD_FIELD64(qword, field, value) \501 EF4_SET_QWORD64(qword, EF4_LOW_BIT(field), \502 EF4_HIGH_BIT(field), value)503 504#define EF4_SET_OWORD_FIELD32(oword, field, value) \505 EF4_SET_OWORD32(oword, EF4_LOW_BIT(field), \506 EF4_HIGH_BIT(field), value)507 508#define EF4_SET_QWORD_FIELD32(qword, field, value) \509 EF4_SET_QWORD32(qword, EF4_LOW_BIT(field), \510 EF4_HIGH_BIT(field), value)511 512#define EF4_SET_DWORD_FIELD(dword, field, value) \513 EF4_SET_DWORD32(dword, EF4_LOW_BIT(field), \514 EF4_HIGH_BIT(field), value)515 516 517 518#if BITS_PER_LONG == 64519#define EF4_SET_OWORD_FIELD EF4_SET_OWORD_FIELD64520#define EF4_SET_QWORD_FIELD EF4_SET_QWORD_FIELD64521#else522#define EF4_SET_OWORD_FIELD EF4_SET_OWORD_FIELD32523#define EF4_SET_QWORD_FIELD EF4_SET_QWORD_FIELD32524#endif525 526/* Used to avoid compiler warnings about shift range exceeding width527 * of the data types when dma_addr_t is only 32 bits wide.528 */529#define DMA_ADDR_T_WIDTH (8 * sizeof(dma_addr_t))530#define EF4_DMA_TYPE_WIDTH(width) \531 (((width) < DMA_ADDR_T_WIDTH) ? (width) : DMA_ADDR_T_WIDTH)532 533 534/* Static initialiser */535#define EF4_OWORD32(a, b, c, d) \536 { .u32 = { cpu_to_le32(a), cpu_to_le32(b), \537 cpu_to_le32(c), cpu_to_le32(d) } }538 539#endif /* EF4_BITFIELD_H */540