Russell King | a09e64f | 2008-08-05 16:14:15 +0100 | [diff] [blame] | 1 | /* |
| 2 | * Copyright(c) 2006, Intel Corporation. |
| 3 | * |
| 4 | * This program is free software; you can redistribute it and/or modify it |
| 5 | * under the terms and conditions of the GNU General Public License, |
| 6 | * version 2, as published by the Free Software Foundation. |
| 7 | * |
| 8 | * This program is distributed in the hope it will be useful, but WITHOUT |
| 9 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| 10 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for |
| 11 | * more details. |
| 12 | * |
| 13 | * You should have received a copy of the GNU General Public License along with |
| 14 | * this program; if not, write to the Free Software Foundation, Inc., |
| 15 | * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. |
| 16 | * |
| 17 | */ |
| 18 | #ifndef _ADMA_H |
| 19 | #define _ADMA_H |
| 20 | #include <linux/types.h> |
| 21 | #include <linux/io.h> |
| 22 | #include <mach/hardware.h> |
| 23 | #include <asm/hardware/iop_adma.h> |
| 24 | |
| 25 | #define ADMA_ACCR(chan) (chan->mmr_base + 0x0) |
| 26 | #define ADMA_ACSR(chan) (chan->mmr_base + 0x4) |
| 27 | #define ADMA_ADAR(chan) (chan->mmr_base + 0x8) |
| 28 | #define ADMA_IIPCR(chan) (chan->mmr_base + 0x18) |
| 29 | #define ADMA_IIPAR(chan) (chan->mmr_base + 0x1c) |
| 30 | #define ADMA_IIPUAR(chan) (chan->mmr_base + 0x20) |
| 31 | #define ADMA_ANDAR(chan) (chan->mmr_base + 0x24) |
| 32 | #define ADMA_ADCR(chan) (chan->mmr_base + 0x28) |
| 33 | #define ADMA_CARMD(chan) (chan->mmr_base + 0x2c) |
| 34 | #define ADMA_ABCR(chan) (chan->mmr_base + 0x30) |
| 35 | #define ADMA_DLADR(chan) (chan->mmr_base + 0x34) |
| 36 | #define ADMA_DUADR(chan) (chan->mmr_base + 0x38) |
| 37 | #define ADMA_SLAR(src, chan) (chan->mmr_base + (0x3c + (src << 3))) |
| 38 | #define ADMA_SUAR(src, chan) (chan->mmr_base + (0x40 + (src << 3))) |
| 39 | |
| 40 | struct iop13xx_adma_src { |
| 41 | u32 src_addr; |
| 42 | union { |
| 43 | u32 upper_src_addr; |
| 44 | struct { |
| 45 | unsigned int pq_upper_src_addr:24; |
| 46 | unsigned int pq_dmlt:8; |
| 47 | }; |
| 48 | }; |
| 49 | }; |
| 50 | |
| 51 | struct iop13xx_adma_desc_ctrl { |
| 52 | unsigned int int_en:1; |
| 53 | unsigned int xfer_dir:2; |
| 54 | unsigned int src_select:4; |
| 55 | unsigned int zero_result:1; |
| 56 | unsigned int block_fill_en:1; |
| 57 | unsigned int crc_gen_en:1; |
| 58 | unsigned int crc_xfer_dis:1; |
| 59 | unsigned int crc_seed_fetch_dis:1; |
| 60 | unsigned int status_write_back_en:1; |
| 61 | unsigned int endian_swap_en:1; |
| 62 | unsigned int reserved0:2; |
| 63 | unsigned int pq_update_xfer_en:1; |
| 64 | unsigned int dual_xor_en:1; |
| 65 | unsigned int pq_xfer_en:1; |
| 66 | unsigned int p_xfer_dis:1; |
| 67 | unsigned int reserved1:10; |
| 68 | unsigned int relax_order_en:1; |
| 69 | unsigned int no_snoop_en:1; |
| 70 | }; |
| 71 | |
| 72 | struct iop13xx_adma_byte_count { |
| 73 | unsigned int byte_count:24; |
| 74 | unsigned int host_if:3; |
| 75 | unsigned int reserved:2; |
| 76 | unsigned int zero_result_err_q:1; |
| 77 | unsigned int zero_result_err:1; |
| 78 | unsigned int tx_complete:1; |
| 79 | }; |
| 80 | |
| 81 | struct iop13xx_adma_desc_hw { |
| 82 | u32 next_desc; |
| 83 | union { |
| 84 | u32 desc_ctrl; |
| 85 | struct iop13xx_adma_desc_ctrl desc_ctrl_field; |
| 86 | }; |
| 87 | union { |
| 88 | u32 crc_addr; |
| 89 | u32 block_fill_data; |
| 90 | u32 q_dest_addr; |
| 91 | }; |
| 92 | union { |
| 93 | u32 byte_count; |
| 94 | struct iop13xx_adma_byte_count byte_count_field; |
| 95 | }; |
| 96 | union { |
| 97 | u32 dest_addr; |
| 98 | u32 p_dest_addr; |
| 99 | }; |
| 100 | union { |
| 101 | u32 upper_dest_addr; |
| 102 | u32 pq_upper_dest_addr; |
| 103 | }; |
| 104 | struct iop13xx_adma_src src[1]; |
| 105 | }; |
| 106 | |
| 107 | struct iop13xx_adma_desc_dual_xor { |
| 108 | u32 next_desc; |
| 109 | u32 desc_ctrl; |
| 110 | u32 reserved; |
| 111 | u32 byte_count; |
| 112 | u32 h_dest_addr; |
| 113 | u32 h_upper_dest_addr; |
| 114 | u32 src0_addr; |
| 115 | u32 upper_src0_addr; |
| 116 | u32 src1_addr; |
| 117 | u32 upper_src1_addr; |
| 118 | u32 h_src_addr; |
| 119 | u32 h_upper_src_addr; |
| 120 | u32 d_src_addr; |
| 121 | u32 d_upper_src_addr; |
| 122 | u32 d_dest_addr; |
| 123 | u32 d_upper_dest_addr; |
| 124 | }; |
| 125 | |
| 126 | struct iop13xx_adma_desc_pq_update { |
| 127 | u32 next_desc; |
| 128 | u32 desc_ctrl; |
| 129 | u32 reserved; |
| 130 | u32 byte_count; |
| 131 | u32 p_dest_addr; |
| 132 | u32 p_upper_dest_addr; |
| 133 | u32 src0_addr; |
| 134 | u32 upper_src0_addr; |
| 135 | u32 src1_addr; |
| 136 | u32 upper_src1_addr; |
| 137 | u32 p_src_addr; |
| 138 | u32 p_upper_src_addr; |
| 139 | u32 q_src_addr; |
| 140 | struct { |
| 141 | unsigned int q_upper_src_addr:24; |
| 142 | unsigned int q_dmlt:8; |
| 143 | }; |
| 144 | u32 q_dest_addr; |
| 145 | u32 q_upper_dest_addr; |
| 146 | }; |
| 147 | |
| 148 | static inline int iop_adma_get_max_xor(void) |
| 149 | { |
| 150 | return 16; |
| 151 | } |
| 152 | |
Dan Williams | 7bf649a | 2009-08-28 14:32:04 -0700 | [diff] [blame] | 153 | #define iop_adma_get_max_pq iop_adma_get_max_xor |
| 154 | |
Russell King | a09e64f | 2008-08-05 16:14:15 +0100 | [diff] [blame] | 155 | static inline u32 iop_chan_get_current_descriptor(struct iop_adma_chan *chan) |
| 156 | { |
| 157 | return __raw_readl(ADMA_ADAR(chan)); |
| 158 | } |
| 159 | |
| 160 | static inline void iop_chan_set_next_descriptor(struct iop_adma_chan *chan, |
| 161 | u32 next_desc_addr) |
| 162 | { |
| 163 | __raw_writel(next_desc_addr, ADMA_ANDAR(chan)); |
| 164 | } |
| 165 | |
| 166 | #define ADMA_STATUS_BUSY (1 << 13) |
| 167 | |
| 168 | static inline char iop_chan_is_busy(struct iop_adma_chan *chan) |
| 169 | { |
| 170 | if (__raw_readl(ADMA_ACSR(chan)) & |
| 171 | ADMA_STATUS_BUSY) |
| 172 | return 1; |
| 173 | else |
| 174 | return 0; |
| 175 | } |
| 176 | |
| 177 | static inline int |
| 178 | iop_chan_get_desc_align(struct iop_adma_chan *chan, int num_slots) |
| 179 | { |
| 180 | return 1; |
| 181 | } |
| 182 | #define iop_desc_is_aligned(x, y) 1 |
| 183 | |
| 184 | static inline int |
| 185 | iop_chan_memcpy_slot_count(size_t len, int *slots_per_op) |
| 186 | { |
| 187 | *slots_per_op = 1; |
| 188 | return 1; |
| 189 | } |
| 190 | |
| 191 | #define iop_chan_interrupt_slot_count(s, c) iop_chan_memcpy_slot_count(0, s) |
| 192 | |
| 193 | static inline int |
| 194 | iop_chan_memset_slot_count(size_t len, int *slots_per_op) |
| 195 | { |
| 196 | *slots_per_op = 1; |
| 197 | return 1; |
| 198 | } |
| 199 | |
| 200 | static inline int |
| 201 | iop_chan_xor_slot_count(size_t len, int src_cnt, int *slots_per_op) |
| 202 | { |
| 203 | static const char slot_count_table[] = { 1, 2, 2, 2, |
| 204 | 2, 3, 3, 3, |
| 205 | 3, 4, 4, 4, |
| 206 | 4, 5, 5, 5, |
| 207 | }; |
| 208 | *slots_per_op = slot_count_table[src_cnt - 1]; |
| 209 | return *slots_per_op; |
| 210 | } |
| 211 | |
| 212 | #define ADMA_MAX_BYTE_COUNT (16 * 1024 * 1024) |
| 213 | #define IOP_ADMA_MAX_BYTE_COUNT ADMA_MAX_BYTE_COUNT |
| 214 | #define IOP_ADMA_ZERO_SUM_MAX_BYTE_COUNT ADMA_MAX_BYTE_COUNT |
| 215 | #define IOP_ADMA_XOR_MAX_BYTE_COUNT ADMA_MAX_BYTE_COUNT |
Dan Williams | 7bf649a | 2009-08-28 14:32:04 -0700 | [diff] [blame] | 216 | #define IOP_ADMA_PQ_MAX_BYTE_COUNT ADMA_MAX_BYTE_COUNT |
Russell King | a09e64f | 2008-08-05 16:14:15 +0100 | [diff] [blame] | 217 | #define iop_chan_zero_sum_slot_count(l, s, o) iop_chan_xor_slot_count(l, s, o) |
Dan Williams | 7bf649a | 2009-08-28 14:32:04 -0700 | [diff] [blame] | 218 | #define iop_chan_pq_slot_count iop_chan_xor_slot_count |
| 219 | #define iop_chan_pq_zero_sum_slot_count iop_chan_xor_slot_count |
Russell King | a09e64f | 2008-08-05 16:14:15 +0100 | [diff] [blame] | 220 | |
| 221 | static inline u32 iop_desc_get_dest_addr(struct iop_adma_desc_slot *desc, |
| 222 | struct iop_adma_chan *chan) |
| 223 | { |
| 224 | struct iop13xx_adma_desc_hw *hw_desc = desc->hw_desc; |
| 225 | return hw_desc->dest_addr; |
| 226 | } |
| 227 | |
Dan Williams | 7bf649a | 2009-08-28 14:32:04 -0700 | [diff] [blame] | 228 | static inline u32 iop_desc_get_qdest_addr(struct iop_adma_desc_slot *desc, |
| 229 | struct iop_adma_chan *chan) |
| 230 | { |
| 231 | struct iop13xx_adma_desc_hw *hw_desc = desc->hw_desc; |
| 232 | return hw_desc->q_dest_addr; |
| 233 | } |
| 234 | |
Russell King | a09e64f | 2008-08-05 16:14:15 +0100 | [diff] [blame] | 235 | static inline u32 iop_desc_get_byte_count(struct iop_adma_desc_slot *desc, |
| 236 | struct iop_adma_chan *chan) |
| 237 | { |
| 238 | struct iop13xx_adma_desc_hw *hw_desc = desc->hw_desc; |
| 239 | return hw_desc->byte_count_field.byte_count; |
| 240 | } |
| 241 | |
| 242 | static inline u32 iop_desc_get_src_addr(struct iop_adma_desc_slot *desc, |
| 243 | struct iop_adma_chan *chan, |
| 244 | int src_idx) |
| 245 | { |
| 246 | struct iop13xx_adma_desc_hw *hw_desc = desc->hw_desc; |
| 247 | return hw_desc->src[src_idx].src_addr; |
| 248 | } |
| 249 | |
| 250 | static inline u32 iop_desc_get_src_count(struct iop_adma_desc_slot *desc, |
| 251 | struct iop_adma_chan *chan) |
| 252 | { |
| 253 | struct iop13xx_adma_desc_hw *hw_desc = desc->hw_desc; |
| 254 | return hw_desc->desc_ctrl_field.src_select + 1; |
| 255 | } |
| 256 | |
| 257 | static inline void |
| 258 | iop_desc_init_memcpy(struct iop_adma_desc_slot *desc, unsigned long flags) |
| 259 | { |
| 260 | struct iop13xx_adma_desc_hw *hw_desc = desc->hw_desc; |
| 261 | union { |
| 262 | u32 value; |
| 263 | struct iop13xx_adma_desc_ctrl field; |
| 264 | } u_desc_ctrl; |
| 265 | |
| 266 | u_desc_ctrl.value = 0; |
| 267 | u_desc_ctrl.field.xfer_dir = 3; /* local to internal bus */ |
| 268 | u_desc_ctrl.field.int_en = flags & DMA_PREP_INTERRUPT; |
| 269 | hw_desc->desc_ctrl = u_desc_ctrl.value; |
| 270 | hw_desc->crc_addr = 0; |
| 271 | } |
| 272 | |
| 273 | static inline void |
| 274 | iop_desc_init_memset(struct iop_adma_desc_slot *desc, unsigned long flags) |
| 275 | { |
| 276 | struct iop13xx_adma_desc_hw *hw_desc = desc->hw_desc; |
| 277 | union { |
| 278 | u32 value; |
| 279 | struct iop13xx_adma_desc_ctrl field; |
| 280 | } u_desc_ctrl; |
| 281 | |
| 282 | u_desc_ctrl.value = 0; |
| 283 | u_desc_ctrl.field.xfer_dir = 3; /* local to internal bus */ |
| 284 | u_desc_ctrl.field.block_fill_en = 1; |
| 285 | u_desc_ctrl.field.int_en = flags & DMA_PREP_INTERRUPT; |
| 286 | hw_desc->desc_ctrl = u_desc_ctrl.value; |
| 287 | hw_desc->crc_addr = 0; |
| 288 | } |
| 289 | |
| 290 | /* to do: support buffers larger than ADMA_MAX_BYTE_COUNT */ |
| 291 | static inline void |
| 292 | iop_desc_init_xor(struct iop_adma_desc_slot *desc, int src_cnt, |
| 293 | unsigned long flags) |
| 294 | { |
| 295 | struct iop13xx_adma_desc_hw *hw_desc = desc->hw_desc; |
| 296 | union { |
| 297 | u32 value; |
| 298 | struct iop13xx_adma_desc_ctrl field; |
| 299 | } u_desc_ctrl; |
| 300 | |
| 301 | u_desc_ctrl.value = 0; |
| 302 | u_desc_ctrl.field.src_select = src_cnt - 1; |
| 303 | u_desc_ctrl.field.xfer_dir = 3; /* local to internal bus */ |
| 304 | u_desc_ctrl.field.int_en = flags & DMA_PREP_INTERRUPT; |
| 305 | hw_desc->desc_ctrl = u_desc_ctrl.value; |
| 306 | hw_desc->crc_addr = 0; |
| 307 | |
| 308 | } |
| 309 | #define iop_desc_init_null_xor(d, s, i) iop_desc_init_xor(d, s, i) |
| 310 | |
| 311 | /* to do: support buffers larger than ADMA_MAX_BYTE_COUNT */ |
| 312 | static inline int |
| 313 | iop_desc_init_zero_sum(struct iop_adma_desc_slot *desc, int src_cnt, |
| 314 | unsigned long flags) |
| 315 | { |
| 316 | struct iop13xx_adma_desc_hw *hw_desc = desc->hw_desc; |
| 317 | union { |
| 318 | u32 value; |
| 319 | struct iop13xx_adma_desc_ctrl field; |
| 320 | } u_desc_ctrl; |
| 321 | |
| 322 | u_desc_ctrl.value = 0; |
| 323 | u_desc_ctrl.field.src_select = src_cnt - 1; |
| 324 | u_desc_ctrl.field.xfer_dir = 3; /* local to internal bus */ |
| 325 | u_desc_ctrl.field.zero_result = 1; |
| 326 | u_desc_ctrl.field.status_write_back_en = 1; |
| 327 | u_desc_ctrl.field.int_en = flags & DMA_PREP_INTERRUPT; |
| 328 | hw_desc->desc_ctrl = u_desc_ctrl.value; |
| 329 | hw_desc->crc_addr = 0; |
| 330 | |
| 331 | return 1; |
| 332 | } |
| 333 | |
Dan Williams | 7bf649a | 2009-08-28 14:32:04 -0700 | [diff] [blame] | 334 | static inline void |
| 335 | iop_desc_init_pq(struct iop_adma_desc_slot *desc, int src_cnt, |
| 336 | unsigned long flags) |
| 337 | { |
| 338 | struct iop13xx_adma_desc_hw *hw_desc = desc->hw_desc; |
| 339 | union { |
| 340 | u32 value; |
| 341 | struct iop13xx_adma_desc_ctrl field; |
| 342 | } u_desc_ctrl; |
| 343 | |
| 344 | u_desc_ctrl.value = 0; |
| 345 | u_desc_ctrl.field.src_select = src_cnt - 1; |
| 346 | u_desc_ctrl.field.xfer_dir = 3; /* local to internal bus */ |
| 347 | u_desc_ctrl.field.pq_xfer_en = 1; |
| 348 | u_desc_ctrl.field.p_xfer_dis = !!(flags & DMA_PREP_PQ_DISABLE_P); |
| 349 | u_desc_ctrl.field.int_en = flags & DMA_PREP_INTERRUPT; |
| 350 | hw_desc->desc_ctrl = u_desc_ctrl.value; |
| 351 | } |
| 352 | |
| 353 | static inline int iop_desc_is_pq(struct iop_adma_desc_slot *desc) |
| 354 | { |
| 355 | struct iop13xx_adma_desc_hw *hw_desc = desc->hw_desc; |
| 356 | union { |
| 357 | u32 value; |
| 358 | struct iop13xx_adma_desc_ctrl field; |
| 359 | } u_desc_ctrl; |
| 360 | |
| 361 | u_desc_ctrl.value = hw_desc->desc_ctrl; |
| 362 | return u_desc_ctrl.field.pq_xfer_en; |
| 363 | } |
| 364 | |
| 365 | static inline void |
| 366 | iop_desc_init_pq_zero_sum(struct iop_adma_desc_slot *desc, int src_cnt, |
| 367 | unsigned long flags) |
| 368 | { |
| 369 | struct iop13xx_adma_desc_hw *hw_desc = desc->hw_desc; |
| 370 | union { |
| 371 | u32 value; |
| 372 | struct iop13xx_adma_desc_ctrl field; |
| 373 | } u_desc_ctrl; |
| 374 | |
| 375 | u_desc_ctrl.value = 0; |
| 376 | u_desc_ctrl.field.src_select = src_cnt - 1; |
| 377 | u_desc_ctrl.field.xfer_dir = 3; /* local to internal bus */ |
| 378 | u_desc_ctrl.field.zero_result = 1; |
| 379 | u_desc_ctrl.field.status_write_back_en = 1; |
| 380 | u_desc_ctrl.field.pq_xfer_en = 1; |
| 381 | u_desc_ctrl.field.p_xfer_dis = !!(flags & DMA_PREP_PQ_DISABLE_P); |
| 382 | u_desc_ctrl.field.int_en = flags & DMA_PREP_INTERRUPT; |
| 383 | hw_desc->desc_ctrl = u_desc_ctrl.value; |
| 384 | } |
| 385 | |
Russell King | a09e64f | 2008-08-05 16:14:15 +0100 | [diff] [blame] | 386 | static inline void iop_desc_set_byte_count(struct iop_adma_desc_slot *desc, |
| 387 | struct iop_adma_chan *chan, |
| 388 | u32 byte_count) |
| 389 | { |
| 390 | struct iop13xx_adma_desc_hw *hw_desc = desc->hw_desc; |
| 391 | hw_desc->byte_count = byte_count; |
| 392 | } |
| 393 | |
| 394 | static inline void |
| 395 | iop_desc_set_zero_sum_byte_count(struct iop_adma_desc_slot *desc, u32 len) |
| 396 | { |
| 397 | int slots_per_op = desc->slots_per_op; |
| 398 | struct iop13xx_adma_desc_hw *hw_desc = desc->hw_desc, *iter; |
| 399 | int i = 0; |
| 400 | |
| 401 | if (len <= IOP_ADMA_ZERO_SUM_MAX_BYTE_COUNT) { |
| 402 | hw_desc->byte_count = len; |
| 403 | } else { |
| 404 | do { |
| 405 | iter = iop_hw_desc_slot_idx(hw_desc, i); |
| 406 | iter->byte_count = IOP_ADMA_ZERO_SUM_MAX_BYTE_COUNT; |
| 407 | len -= IOP_ADMA_ZERO_SUM_MAX_BYTE_COUNT; |
| 408 | i += slots_per_op; |
| 409 | } while (len > IOP_ADMA_ZERO_SUM_MAX_BYTE_COUNT); |
| 410 | |
| 411 | if (len) { |
| 412 | iter = iop_hw_desc_slot_idx(hw_desc, i); |
| 413 | iter->byte_count = len; |
| 414 | } |
| 415 | } |
| 416 | } |
| 417 | |
Dan Williams | 7bf649a | 2009-08-28 14:32:04 -0700 | [diff] [blame] | 418 | #define iop_desc_set_pq_zero_sum_byte_count iop_desc_set_zero_sum_byte_count |
Russell King | a09e64f | 2008-08-05 16:14:15 +0100 | [diff] [blame] | 419 | |
| 420 | static inline void iop_desc_set_dest_addr(struct iop_adma_desc_slot *desc, |
| 421 | struct iop_adma_chan *chan, |
| 422 | dma_addr_t addr) |
| 423 | { |
| 424 | struct iop13xx_adma_desc_hw *hw_desc = desc->hw_desc; |
| 425 | hw_desc->dest_addr = addr; |
| 426 | hw_desc->upper_dest_addr = 0; |
| 427 | } |
| 428 | |
Dan Williams | 7bf649a | 2009-08-28 14:32:04 -0700 | [diff] [blame] | 429 | static inline void |
| 430 | iop_desc_set_pq_addr(struct iop_adma_desc_slot *desc, dma_addr_t *addr) |
| 431 | { |
| 432 | struct iop13xx_adma_desc_hw *hw_desc = desc->hw_desc; |
| 433 | |
| 434 | hw_desc->dest_addr = addr[0]; |
| 435 | hw_desc->q_dest_addr = addr[1]; |
| 436 | hw_desc->upper_dest_addr = 0; |
| 437 | } |
| 438 | |
Russell King | a09e64f | 2008-08-05 16:14:15 +0100 | [diff] [blame] | 439 | static inline void iop_desc_set_memcpy_src_addr(struct iop_adma_desc_slot *desc, |
| 440 | dma_addr_t addr) |
| 441 | { |
| 442 | struct iop13xx_adma_desc_hw *hw_desc = desc->hw_desc; |
| 443 | hw_desc->src[0].src_addr = addr; |
| 444 | hw_desc->src[0].upper_src_addr = 0; |
| 445 | } |
| 446 | |
| 447 | static inline void iop_desc_set_xor_src_addr(struct iop_adma_desc_slot *desc, |
| 448 | int src_idx, dma_addr_t addr) |
| 449 | { |
| 450 | int slot_cnt = desc->slot_cnt, slots_per_op = desc->slots_per_op; |
| 451 | struct iop13xx_adma_desc_hw *hw_desc = desc->hw_desc, *iter; |
| 452 | int i = 0; |
| 453 | |
| 454 | do { |
| 455 | iter = iop_hw_desc_slot_idx(hw_desc, i); |
| 456 | iter->src[src_idx].src_addr = addr; |
| 457 | iter->src[src_idx].upper_src_addr = 0; |
| 458 | slot_cnt -= slots_per_op; |
| 459 | if (slot_cnt) { |
| 460 | i += slots_per_op; |
| 461 | addr += IOP_ADMA_XOR_MAX_BYTE_COUNT; |
| 462 | } |
| 463 | } while (slot_cnt); |
| 464 | } |
| 465 | |
| 466 | static inline void |
Dan Williams | 7bf649a | 2009-08-28 14:32:04 -0700 | [diff] [blame] | 467 | iop_desc_set_pq_src_addr(struct iop_adma_desc_slot *desc, int src_idx, |
| 468 | dma_addr_t addr, unsigned char coef) |
| 469 | { |
| 470 | int slot_cnt = desc->slot_cnt, slots_per_op = desc->slots_per_op; |
| 471 | struct iop13xx_adma_desc_hw *hw_desc = desc->hw_desc, *iter; |
| 472 | struct iop13xx_adma_src *src; |
| 473 | int i = 0; |
| 474 | |
| 475 | do { |
| 476 | iter = iop_hw_desc_slot_idx(hw_desc, i); |
| 477 | src = &iter->src[src_idx]; |
| 478 | src->src_addr = addr; |
| 479 | src->pq_upper_src_addr = 0; |
| 480 | src->pq_dmlt = coef; |
| 481 | slot_cnt -= slots_per_op; |
| 482 | if (slot_cnt) { |
| 483 | i += slots_per_op; |
| 484 | addr += IOP_ADMA_PQ_MAX_BYTE_COUNT; |
| 485 | } |
| 486 | } while (slot_cnt); |
| 487 | } |
| 488 | |
| 489 | static inline void |
Russell King | a09e64f | 2008-08-05 16:14:15 +0100 | [diff] [blame] | 490 | iop_desc_init_interrupt(struct iop_adma_desc_slot *desc, |
| 491 | struct iop_adma_chan *chan) |
| 492 | { |
| 493 | iop_desc_init_memcpy(desc, 1); |
| 494 | iop_desc_set_byte_count(desc, chan, 0); |
| 495 | iop_desc_set_dest_addr(desc, chan, 0); |
| 496 | iop_desc_set_memcpy_src_addr(desc, 0); |
| 497 | } |
| 498 | |
| 499 | #define iop_desc_set_zero_sum_src_addr iop_desc_set_xor_src_addr |
Dan Williams | 7bf649a | 2009-08-28 14:32:04 -0700 | [diff] [blame] | 500 | #define iop_desc_set_pq_zero_sum_src_addr iop_desc_set_pq_src_addr |
| 501 | |
| 502 | static inline void |
| 503 | iop_desc_set_pq_zero_sum_addr(struct iop_adma_desc_slot *desc, int pq_idx, |
| 504 | dma_addr_t *src) |
| 505 | { |
| 506 | iop_desc_set_xor_src_addr(desc, pq_idx, src[pq_idx]); |
| 507 | iop_desc_set_xor_src_addr(desc, pq_idx+1, src[pq_idx+1]); |
| 508 | } |
Russell King | a09e64f | 2008-08-05 16:14:15 +0100 | [diff] [blame] | 509 | |
| 510 | static inline void iop_desc_set_next_desc(struct iop_adma_desc_slot *desc, |
| 511 | u32 next_desc_addr) |
| 512 | { |
| 513 | struct iop13xx_adma_desc_hw *hw_desc = desc->hw_desc; |
Dan Williams | 65e5038 | 2008-11-11 13:12:33 -0700 | [diff] [blame] | 514 | |
| 515 | iop_paranoia(hw_desc->next_desc); |
Russell King | a09e64f | 2008-08-05 16:14:15 +0100 | [diff] [blame] | 516 | hw_desc->next_desc = next_desc_addr; |
| 517 | } |
| 518 | |
| 519 | static inline u32 iop_desc_get_next_desc(struct iop_adma_desc_slot *desc) |
| 520 | { |
| 521 | struct iop13xx_adma_desc_hw *hw_desc = desc->hw_desc; |
| 522 | return hw_desc->next_desc; |
| 523 | } |
| 524 | |
| 525 | static inline void iop_desc_clear_next_desc(struct iop_adma_desc_slot *desc) |
| 526 | { |
| 527 | struct iop13xx_adma_desc_hw *hw_desc = desc->hw_desc; |
| 528 | hw_desc->next_desc = 0; |
| 529 | } |
| 530 | |
| 531 | static inline void iop_desc_set_block_fill_val(struct iop_adma_desc_slot *desc, |
| 532 | u32 val) |
| 533 | { |
| 534 | struct iop13xx_adma_desc_hw *hw_desc = desc->hw_desc; |
| 535 | hw_desc->block_fill_data = val; |
| 536 | } |
| 537 | |
Dan Williams | ad283ea | 2009-08-29 19:09:26 -0700 | [diff] [blame] | 538 | static inline enum sum_check_flags |
| 539 | iop_desc_get_zero_result(struct iop_adma_desc_slot *desc) |
Russell King | a09e64f | 2008-08-05 16:14:15 +0100 | [diff] [blame] | 540 | { |
| 541 | struct iop13xx_adma_desc_hw *hw_desc = desc->hw_desc; |
| 542 | struct iop13xx_adma_desc_ctrl desc_ctrl = hw_desc->desc_ctrl_field; |
| 543 | struct iop13xx_adma_byte_count byte_count = hw_desc->byte_count_field; |
Dan Williams | ad283ea | 2009-08-29 19:09:26 -0700 | [diff] [blame] | 544 | enum sum_check_flags flags; |
Russell King | a09e64f | 2008-08-05 16:14:15 +0100 | [diff] [blame] | 545 | |
| 546 | BUG_ON(!(byte_count.tx_complete && desc_ctrl.zero_result)); |
| 547 | |
Dan Williams | ad283ea | 2009-08-29 19:09:26 -0700 | [diff] [blame] | 548 | flags = byte_count.zero_result_err_q << SUM_CHECK_Q; |
| 549 | flags |= byte_count.zero_result_err << SUM_CHECK_P; |
| 550 | |
| 551 | return flags; |
Russell King | a09e64f | 2008-08-05 16:14:15 +0100 | [diff] [blame] | 552 | } |
| 553 | |
| 554 | static inline void iop_chan_append(struct iop_adma_chan *chan) |
| 555 | { |
| 556 | u32 adma_accr; |
| 557 | |
| 558 | adma_accr = __raw_readl(ADMA_ACCR(chan)); |
| 559 | adma_accr |= 0x2; |
| 560 | __raw_writel(adma_accr, ADMA_ACCR(chan)); |
| 561 | } |
| 562 | |
| 563 | static inline u32 iop_chan_get_status(struct iop_adma_chan *chan) |
| 564 | { |
| 565 | return __raw_readl(ADMA_ACSR(chan)); |
| 566 | } |
| 567 | |
| 568 | static inline void iop_chan_disable(struct iop_adma_chan *chan) |
| 569 | { |
| 570 | u32 adma_chan_ctrl = __raw_readl(ADMA_ACCR(chan)); |
| 571 | adma_chan_ctrl &= ~0x1; |
| 572 | __raw_writel(adma_chan_ctrl, ADMA_ACCR(chan)); |
| 573 | } |
| 574 | |
| 575 | static inline void iop_chan_enable(struct iop_adma_chan *chan) |
| 576 | { |
| 577 | u32 adma_chan_ctrl; |
| 578 | |
| 579 | adma_chan_ctrl = __raw_readl(ADMA_ACCR(chan)); |
| 580 | adma_chan_ctrl |= 0x1; |
| 581 | __raw_writel(adma_chan_ctrl, ADMA_ACCR(chan)); |
| 582 | } |
| 583 | |
| 584 | static inline void iop_adma_device_clear_eot_status(struct iop_adma_chan *chan) |
| 585 | { |
| 586 | u32 status = __raw_readl(ADMA_ACSR(chan)); |
| 587 | status &= (1 << 12); |
| 588 | __raw_writel(status, ADMA_ACSR(chan)); |
| 589 | } |
| 590 | |
| 591 | static inline void iop_adma_device_clear_eoc_status(struct iop_adma_chan *chan) |
| 592 | { |
| 593 | u32 status = __raw_readl(ADMA_ACSR(chan)); |
| 594 | status &= (1 << 11); |
| 595 | __raw_writel(status, ADMA_ACSR(chan)); |
| 596 | } |
| 597 | |
| 598 | static inline void iop_adma_device_clear_err_status(struct iop_adma_chan *chan) |
| 599 | { |
| 600 | u32 status = __raw_readl(ADMA_ACSR(chan)); |
| 601 | status &= (1 << 9) | (1 << 5) | (1 << 4) | (1 << 3); |
| 602 | __raw_writel(status, ADMA_ACSR(chan)); |
| 603 | } |
| 604 | |
| 605 | static inline int |
| 606 | iop_is_err_int_parity(unsigned long status, struct iop_adma_chan *chan) |
| 607 | { |
| 608 | return test_bit(9, &status); |
| 609 | } |
| 610 | |
| 611 | static inline int |
| 612 | iop_is_err_mcu_abort(unsigned long status, struct iop_adma_chan *chan) |
| 613 | { |
| 614 | return test_bit(5, &status); |
| 615 | } |
| 616 | |
| 617 | static inline int |
| 618 | iop_is_err_int_tabort(unsigned long status, struct iop_adma_chan *chan) |
| 619 | { |
| 620 | return test_bit(4, &status); |
| 621 | } |
| 622 | |
| 623 | static inline int |
| 624 | iop_is_err_int_mabort(unsigned long status, struct iop_adma_chan *chan) |
| 625 | { |
| 626 | return test_bit(3, &status); |
| 627 | } |
| 628 | |
| 629 | static inline int |
| 630 | iop_is_err_pci_tabort(unsigned long status, struct iop_adma_chan *chan) |
| 631 | { |
| 632 | return 0; |
| 633 | } |
| 634 | |
| 635 | static inline int |
| 636 | iop_is_err_pci_mabort(unsigned long status, struct iop_adma_chan *chan) |
| 637 | { |
| 638 | return 0; |
| 639 | } |
| 640 | |
| 641 | static inline int |
| 642 | iop_is_err_split_tx(unsigned long status, struct iop_adma_chan *chan) |
| 643 | { |
| 644 | return 0; |
| 645 | } |
| 646 | |
| 647 | #endif /* _ADMA_H */ |