From 02a841d434513c7b3620250271c372fabce56de5 Mon Sep 17 00:00:00 2001 From: Ben Skeggs Date: Wed, 4 Jul 2012 23:44:54 +1000 Subject: drm/nouveau: restructure source tree, split core from drm implementation Future work will be headed in the way of separating the policy supplied by the nouveau drm module from the mechanisms provided by the driver core. There will be a couple of major classes (subdev, engine) of driver modules that have clearly defined tasks, and the further directory structure change is to reflect this. No code changes here whatsoever, aside from fixing up a couple of include file pathnames. Signed-off-by: Ben Skeggs --- .../gpu/drm/nouveau/core/engine/graph/fuc/nvc0.fuc | 400 +++++++++++++++++++++ 1 file changed, 400 insertions(+) create mode 100644 drivers/gpu/drm/nouveau/core/engine/graph/fuc/nvc0.fuc (limited to 'drivers/gpu/drm/nouveau/core/engine/graph/fuc/nvc0.fuc') diff --git a/drivers/gpu/drm/nouveau/core/engine/graph/fuc/nvc0.fuc b/drivers/gpu/drm/nouveau/core/engine/graph/fuc/nvc0.fuc new file mode 100644 index 0000000..e6b2288 --- /dev/null +++ b/drivers/gpu/drm/nouveau/core/engine/graph/fuc/nvc0.fuc @@ -0,0 +1,400 @@ +/* fuc microcode util functions for nvc0 PGRAPH + * + * Copyright 2011 Red Hat Inc. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR + * OTHER DEALINGS IN THE SOFTWARE. + * + * Authors: Ben Skeggs + */ + +define(`mmctx_data', `.b32 eval((($2 - 1) << 26) | $1)') +define(`queue_init', `.skip eval((2 * 4) + ((8 * 4) * 2))') + +ifdef(`include_code', ` +// Error codes +define(`E_BAD_COMMAND', 0x01) +define(`E_CMD_OVERFLOW', 0x02) + +// Util macros to help with debugging ucode hangs etc +define(`T_WAIT', 0) +define(`T_MMCTX', 1) +define(`T_STRWAIT', 2) +define(`T_STRINIT', 3) +define(`T_AUTO', 4) +define(`T_CHAN', 5) +define(`T_LOAD', 6) +define(`T_SAVE', 7) +define(`T_LCHAN', 8) +define(`T_LCTXH', 9) + +define(`trace_set', ` + mov $r8 0x83c + shl b32 $r8 6 + clear b32 $r9 + bset $r9 $1 + iowr I[$r8 + 0x000] $r9 // CC_SCRATCH[7] +') + +define(`trace_clr', ` + mov $r8 0x85c + shl b32 $r8 6 + clear b32 $r9 + bset $r9 $1 + iowr I[$r8 + 0x000] $r9 // CC_SCRATCH[7] +') + +// queue_put - add request to queue +// +// In : $r13 queue pointer +// $r14 command +// $r15 data +// +queue_put: + // make sure we have space.. + ld b32 $r8 D[$r13 + 0x0] // GET + ld b32 $r9 D[$r13 + 0x4] // PUT + xor $r8 8 + cmpu b32 $r8 $r9 + bra ne #queue_put_next + mov $r15 E_CMD_OVERFLOW + call #error + ret + + // store cmd/data on queue + queue_put_next: + and $r8 $r9 7 + shl b32 $r8 3 + add b32 $r8 $r13 + add b32 $r8 8 + st b32 D[$r8 + 0x0] $r14 + st b32 D[$r8 + 0x4] $r15 + + // update PUT + add b32 $r9 1 + and $r9 0xf + st b32 D[$r13 + 0x4] $r9 + ret + +// queue_get - fetch request from queue +// +// In : $r13 queue pointer +// +// Out: $p1 clear on success (data available) +// $r14 command +// $r15 data +// +queue_get: + bset $flags $p1 + ld b32 $r8 D[$r13 + 0x0] // GET + ld b32 $r9 D[$r13 + 0x4] // PUT + cmpu b32 $r8 $r9 + bra e #queue_get_done + // fetch first cmd/data pair + and $r9 $r8 7 + shl b32 $r9 3 + add b32 $r9 $r13 + add b32 $r9 8 + ld b32 $r14 D[$r9 + 0x0] + ld b32 $r15 D[$r9 + 0x4] + + // update GET + add b32 $r8 1 + and $r8 0xf + st b32 D[$r13 + 0x0] $r8 + bclr $flags $p1 +queue_get_done: + ret + +// nv_rd32 - read 32-bit value from nv register +// +// In : $r14 register +// Out: $r15 value +// +nv_rd32: + mov $r11 0x728 + shl b32 $r11 6 + mov b32 $r12 $r14 + bset $r12 31 // MMIO_CTRL_PENDING + iowr I[$r11 + 0x000] $r12 // MMIO_CTRL + nv_rd32_wait: + iord $r12 I[$r11 + 0x000] + xbit $r12 $r12 31 + bra ne #nv_rd32_wait + mov $r10 6 // DONE_MMIO_RD + call #wait_doneo + iord $r15 I[$r11 + 0x100] // MMIO_RDVAL + ret + +// nv_wr32 - write 32-bit value to nv register +// +// In : $r14 register +// $r15 value +// +nv_wr32: + mov $r11 0x728 + shl b32 $r11 6 + iowr I[$r11 + 0x200] $r15 // MMIO_WRVAL + mov b32 $r12 $r14 + bset $r12 31 // MMIO_CTRL_PENDING + bset $r12 30 // MMIO_CTRL_WRITE + iowr I[$r11 + 0x000] $r12 // MMIO_CTRL + nv_wr32_wait: + iord $r12 I[$r11 + 0x000] + xbit $r12 $r12 31 + bra ne #nv_wr32_wait + ret + +// (re)set watchdog timer +// +// In : $r15 timeout +// +watchdog_reset: + mov $r8 0x430 + shl b32 $r8 6 + bset $r15 31 + iowr I[$r8 + 0x000] $r15 + ret + +// clear watchdog timer +watchdog_clear: + mov $r8 0x430 + shl b32 $r8 6 + iowr I[$r8 + 0x000] $r0 + ret + +// wait_done{z,o} - wait on FUC_DONE bit to become clear/set +// +// In : $r10 bit to wait on +// +define(`wait_done', ` +$1: + trace_set(T_WAIT); + mov $r8 0x818 + shl b32 $r8 6 + iowr I[$r8 + 0x000] $r10 // CC_SCRATCH[6] = wait bit + wait_done_$1: + mov $r8 0x400 + shl b32 $r8 6 + iord $r8 I[$r8 + 0x000] // DONE + xbit $r8 $r8 $r10 + bra $2 #wait_done_$1 + trace_clr(T_WAIT) + ret +') +wait_done(wait_donez, ne) +wait_done(wait_doneo, e) + +// mmctx_size - determine size of a mmio list transfer +// +// In : $r14 mmio list head +// $r15 mmio list tail +// Out: $r15 transfer size (in bytes) +// +mmctx_size: + clear b32 $r9 + nv_mmctx_size_loop: + ld b32 $r8 D[$r14] + shr b32 $r8 26 + add b32 $r8 1 + shl b32 $r8 2 + add b32 $r9 $r8 + add b32 $r14 4 + cmpu b32 $r14 $r15 + bra ne #nv_mmctx_size_loop + mov b32 $r15 $r9 + ret + +// mmctx_xfer - execute a list of mmio transfers +// +// In : $r10 flags +// bit 0: direction (0 = save, 1 = load) +// bit 1: set if first transfer +// bit 2: set if last transfer +// $r11 base +// $r12 mmio list head +// $r13 mmio list tail +// $r14 multi_stride +// $r15 multi_mask +// +mmctx_xfer: + trace_set(T_MMCTX) + mov $r8 0x710 + shl b32 $r8 6 + clear b32 $r9 + or $r11 $r11 + bra e #mmctx_base_disabled + iowr I[$r8 + 0x000] $r11 // MMCTX_BASE + bset $r9 0 // BASE_EN + mmctx_base_disabled: + or $r14 $r14 + bra e #mmctx_multi_disabled + iowr I[$r8 + 0x200] $r14 // MMCTX_MULTI_STRIDE + iowr I[$r8 + 0x300] $r15 // MMCTX_MULTI_MASK + bset $r9 1 // MULTI_EN + mmctx_multi_disabled: + add b32 $r8 0x100 + + xbit $r11 $r10 0 + shl b32 $r11 16 // DIR + bset $r11 12 // QLIMIT = 0x10 + xbit $r14 $r10 1 + shl b32 $r14 17 + or $r11 $r14 // START_TRIGGER + iowr I[$r8 + 0x000] $r11 // MMCTX_CTRL + + // loop over the mmio list, and send requests to the hw + mmctx_exec_loop: + // wait for space in mmctx queue + mmctx_wait_free: + iord $r14 I[$r8 + 0x000] // MMCTX_CTRL + and $r14 0x1f + bra e #mmctx_wait_free + + // queue up an entry + ld b32 $r14 D[$r12] + or $r14 $r9 + iowr I[$r8 + 0x300] $r14 + add b32 $r12 4 + cmpu b32 $r12 $r13 + bra ne #mmctx_exec_loop + + xbit $r11 $r10 2 + bra ne #mmctx_stop + // wait for queue to empty + mmctx_fini_wait: + iord $r11 I[$r8 + 0x000] // MMCTX_CTRL + and $r11 0x1f + cmpu b32 $r11 0x10 + bra ne #mmctx_fini_wait + mov $r10 2 // DONE_MMCTX + call #wait_donez + bra #mmctx_done + mmctx_stop: + xbit $r11 $r10 0 + shl b32 $r11 16 // DIR + bset $r11 12 // QLIMIT = 0x10 + bset $r11 18 // STOP_TRIGGER + iowr I[$r8 + 0x000] $r11 // MMCTX_CTRL + mmctx_stop_wait: + // wait for STOP_TRIGGER to clear + iord $r11 I[$r8 + 0x000] // MMCTX_CTRL + xbit $r11 $r11 18 + bra ne #mmctx_stop_wait + mmctx_done: + trace_clr(T_MMCTX) + ret + +// Wait for DONE_STRAND +// +strand_wait: + push $r10 + mov $r10 2 + call #wait_donez + pop $r10 + ret + +// unknown - call before issuing strand commands +// +strand_pre: + mov $r8 0x4afc + sethi $r8 0x20000 + mov $r9 0xc + iowr I[$r8] $r9 + call #strand_wait + ret + +// unknown - call after issuing strand commands +// +strand_post: + mov $r8 0x4afc + sethi $r8 0x20000 + mov $r9 0xd + iowr I[$r8] $r9 + call #strand_wait + ret + +// Selects strand set?! +// +// In: $r14 id +// +strand_set: + mov $r10 0x4ffc + sethi $r10 0x20000 + sub b32 $r11 $r10 0x500 + mov $r12 0xf + iowr I[$r10 + 0x000] $r12 // 0x93c = 0xf + mov $r12 0xb + iowr I[$r11 + 0x000] $r12 // 0x928 = 0xb + call #strand_wait + iowr I[$r10 + 0x000] $r14 // 0x93c = + mov $r12 0xa + iowr I[$r11 + 0x000] $r12 // 0x928 = 0xa + call #strand_wait + ret + +// Initialise strand context data +// +// In : $r15 context base +// Out: $r15 context size (in bytes) +// +// Strandset(?) 3 hardcoded currently +// +strand_ctx_init: + trace_set(T_STRINIT) + call #strand_pre + mov $r14 3 + call #strand_set + mov $r10 0x46fc + sethi $r10 0x20000 + add b32 $r11 $r10 0x400 + iowr I[$r10 + 0x100] $r0 // STRAND_FIRST_GENE = 0 + mov $r12 1 + iowr I[$r11 + 0x000] $r12 // STRAND_CMD = LATCH_FIRST_GENE + call #strand_wait + sub b32 $r12 $r0 1 + iowr I[$r10 + 0x000] $r12 // STRAND_GENE_CNT = 0xffffffff + mov $r12 2 + iowr I[$r11 + 0x000] $r12 // STRAND_CMD = LATCH_GENE_CNT + call #strand_wait + call #strand_post + + // read the size of each strand, poke the context offset of + // each into STRAND_{SAVE,LOAD}_SWBASE now, no need to worry + // about it later then. + mov $r8 0x880 + shl b32 $r8 6 + iord $r9 I[$r8 + 0x000] // STRANDS + add b32 $r8 0x2200 + shr b32 $r14 $r15 8 + ctx_init_strand_loop: + iowr I[$r8 + 0x000] $r14 // STRAND_SAVE_SWBASE + iowr I[$r8 + 0x100] $r14 // STRAND_LOAD_SWBASE + iord $r10 I[$r8 + 0x200] // STRAND_SIZE + shr b32 $r10 6 + add b32 $r10 1 + add b32 $r14 $r10 + add b32 $r8 4 + sub b32 $r9 1 + bra ne #ctx_init_strand_loop + + shl b32 $r14 8 + sub b32 $r15 $r14 $r15 + trace_clr(T_STRINIT) + ret +') -- cgit v1.1