diff options
Diffstat (limited to 'nvkm/engine/graph/fuc/gpc.fuc')
| -rw-r--r-- | nvkm/engine/graph/fuc/gpc.fuc | 378 |
1 files changed, 0 insertions, 378 deletions
diff --git a/nvkm/engine/graph/fuc/gpc.fuc b/nvkm/engine/graph/fuc/gpc.fuc deleted file mode 100644 index 7445f12b1..000000000 --- a/nvkm/engine/graph/fuc/gpc.fuc +++ /dev/null @@ -1,378 +0,0 @@ -/* fuc microcode for nvc0 PGRAPH/GPC - * - * 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 - */ - -/* TODO - * - bracket certain functions with scratch writes, useful for debugging - * - watchdog timer around ctx operations - */ - -#ifdef INCLUDE_DATA -gpc_mmio_list_head: .b32 #mmio_list_base -gpc_mmio_list_tail: -tpc_mmio_list_head: .b32 #mmio_list_base -tpc_mmio_list_tail: -unk_mmio_list_head: .b32 #mmio_list_base -unk_mmio_list_tail: .b32 #mmio_list_base - -gpc_id: .b32 0 - -tpc_count: .b32 0 -tpc_mask: .b32 0 - -#if NV_PGRAPH_GPCX_UNK__SIZE > 0 -unk_count: .b32 0 -unk_mask: .b32 0 -#endif - -cmd_queue: queue_init - -mmio_list_base: -#endif - -#ifdef INCLUDE_CODE -// reports an exception to the host -// -// In: $r15 error code (see os.h) -// -error: - push $r14 - nv_wr32(NV_PGRAPH_FECS_CC_SCRATCH_VAL(5), $r15) - mov $r15 1 - nv_wr32(NV_PGRAPH_FECS_INTR_UP_SET, $r15) - pop $r14 - ret - -// GPC fuc initialisation, executed by triggering ucode start, will -// fall through to main loop after completion. -// -// Input: -// CC_SCRATCH[1]: context base -// -// Output: -// CC_SCRATCH[0]: -// 31:31: set to signal completion -// CC_SCRATCH[1]: -// 31:0: GPC context size -// -init: - clear b32 $r0 - - // setup stack - nv_iord($r1, NV_PGRAPH_GPCX_GPCCS_CAPS, 0) - extr $r1 $r1 9:17 - shl b32 $r1 8 - mov $sp $r1 - - // enable fifo access - mov $r2 NV_PGRAPH_GPCX_GPCCS_ACCESS_FIFO - nv_iowr(NV_PGRAPH_GPCX_GPCCS_ACCESS, 0, $r2) - - // setup i0 handler, and route all interrupts to it - mov $r1 #ih - mov $iv0 $r1 - nv_iowr(NV_PGRAPH_GPCX_GPCCS_INTR_ROUTE, 0, $r0) - - // enable fifo interrupt - mov $r2 NV_PGRAPH_GPCX_GPCCS_INTR_EN_SET_FIFO - nv_iowr(NV_PGRAPH_GPCX_GPCCS_INTR_EN_SET, 0, $r2) - - // enable interrupts - bset $flags ie0 - - // figure out which GPC we are, and how many TPCs we have - nv_iord($r2, NV_PGRAPH_GPCX_GPCCS_UNITS, 0) - mov $r3 1 - and $r2 0x1f - shl b32 $r3 $r2 - sub b32 $r3 1 - st b32 D[$r0 + #tpc_count] $r2 - st b32 D[$r0 + #tpc_mask] $r3 - nv_iord($r2, NV_PGRAPH_GPCX_GPCCS_MYINDEX, 0) - st b32 D[$r0 + #gpc_id] $r2 - -#if NV_PGRAPH_GPCX_UNK__SIZE > 0 - // figure out which, and how many, UNKs are actually present - imm32($r14, 0x500c30) - clear b32 $r2 - clear b32 $r3 - clear b32 $r4 - init_unk_loop: - call(nv_rd32) - cmp b32 $r15 0 - bra z #init_unk_next - mov $r15 1 - shl b32 $r15 $r2 - or $r4 $r15 - add b32 $r3 1 - init_unk_next: - add b32 $r2 1 - add b32 $r14 4 - cmp b32 $r2 NV_PGRAPH_GPCX_UNK__SIZE - bra ne #init_unk_loop - init_unk_done: - st b32 D[$r0 + #unk_count] $r3 - st b32 D[$r0 + #unk_mask] $r4 -#endif - - // initialise context base, and size tracking - nv_iord($r2, NV_PGRAPH_GPCX_GPCCS_CC_SCRATCH_VAL(1), 0) - clear b32 $r3 // track GPC context size here - - // set mmctx base addresses now so we don't have to do it later, - // they don't currently ever change - shr b32 $r5 $r2 8 - nv_iowr(NV_PGRAPH_GPCX_GPCCS_MMCTX_SAVE_SWBASE, 0, $r5) - nv_iowr(NV_PGRAPH_GPCX_GPCCS_MMCTX_LOAD_SWBASE, 0, $r5) - - // calculate GPC mmio context size - ld b32 $r14 D[$r0 + #gpc_mmio_list_head] - ld b32 $r15 D[$r0 + #gpc_mmio_list_tail] - call(mmctx_size) - add b32 $r2 $r15 - add b32 $r3 $r15 - - // calculate per-TPC mmio context size - ld b32 $r14 D[$r0 + #tpc_mmio_list_head] - ld b32 $r15 D[$r0 + #tpc_mmio_list_tail] - call(mmctx_size) - ld b32 $r14 D[$r0 + #tpc_count] - mulu $r14 $r15 - add b32 $r2 $r14 - add b32 $r3 $r14 - -#if NV_PGRAPH_GPCX_UNK__SIZE > 0 - // calculate per-UNK mmio context size - ld b32 $r14 D[$r0 + #unk_mmio_list_head] - ld b32 $r15 D[$r0 + #unk_mmio_list_tail] - call(mmctx_size) - ld b32 $r14 D[$r0 + #unk_count] - mulu $r14 $r15 - add b32 $r2 $r14 - add b32 $r3 $r14 -#endif - - // round up base/size to 256 byte boundary (for strand SWBASE) - shr b32 $r3 2 - nv_iowr(NV_PGRAPH_GPCX_GPCCS_MMCTX_LOAD_COUNT, 0, $r3) // wtf for?! - shr b32 $r2 8 - shr b32 $r3 6 - add b32 $r2 1 - add b32 $r3 1 - shl b32 $r2 8 - shl b32 $r3 8 - - // calculate size of strand context data - mov b32 $r15 $r2 - call(strand_ctx_init) - add b32 $r3 $r15 - - // save context size, and tell HUB we're done - nv_iowr(NV_PGRAPH_GPCX_GPCCS_CC_SCRATCH_VAL(1), 0, $r3) - clear b32 $r2 - bset $r2 31 - nv_iowr(NV_PGRAPH_GPCX_GPCCS_CC_SCRATCH_SET(0), 0, $r2) - -// Main program loop, very simple, sleeps until woken up by the interrupt -// handler, pulls a command from the queue and executes its handler -// -main: - bset $flags $p0 - sleep $p0 - mov $r13 #cmd_queue - call(queue_get) - bra $p1 #main - - // 0x0000-0x0003 are all context transfers - cmpu b32 $r14 0x04 - bra nc #main_not_ctx_xfer - // fetch $flags and mask off $p1/$p2 - mov $r1 $flags - mov $r2 0x0006 - not b32 $r2 - and $r1 $r2 - // set $p1/$p2 according to transfer type - shl b32 $r14 1 - or $r1 $r14 - mov $flags $r1 - // transfer context data - call(ctx_xfer) - bra #main - - main_not_ctx_xfer: - shl b32 $r15 $r14 16 - or $r15 E_BAD_COMMAND - call(error) - bra #main - -// interrupt handler -ih: - push $r8 - mov $r8 $flags - push $r8 - push $r9 - push $r10 - push $r11 - push $r13 - push $r14 - push $r15 - clear b32 $r0 - - // incoming fifo command? - nv_iord($r10, NV_PGRAPH_GPCX_GPCCS_INTR, 0) - and $r11 $r10 NV_PGRAPH_GPCX_GPCCS_INTR_FIFO - bra e #ih_no_fifo - // queue incoming fifo command for later processing - mov $r13 #cmd_queue - nv_iord($r14, NV_PGRAPH_GPCX_GPCCS_FIFO_CMD, 0) - nv_iord($r15, NV_PGRAPH_GPCX_GPCCS_FIFO_DATA, 0) - call(queue_put) - mov $r14 1 - nv_iowr(NV_PGRAPH_GPCX_GPCCS_FIFO_ACK, 0, $r14) - - // ack, and wake up main() - ih_no_fifo: - nv_iowr(NV_PGRAPH_GPCX_GPCCS_INTR_ACK, 0, $r10) - - pop $r15 - pop $r14 - pop $r13 - pop $r11 - pop $r10 - pop $r9 - pop $r8 - mov $flags $r8 - pop $r8 - bclr $flags $p0 - iret - -// Set this GPC's bit in HUB_BAR, used to signal completion of various -// activities to the HUB fuc -// -hub_barrier_done: - mov $r15 1 - ld b32 $r14 D[$r0 + #gpc_id] - shl b32 $r15 $r14 - nv_wr32(0x409418, $r15) // 0x409418 - HUB_BAR_SET - ret - -// Disables various things, waits a bit, and re-enables them.. -// -// Not sure how exactly this helps, perhaps "ENABLE" is not such a -// good description for the bits we turn off? Anyways, without this, -// funny things happen. -// -ctx_redswitch: - mov $r15 NV_PGRAPH_GPCX_GPCCS_RED_SWITCH_POWER - nv_iowr(NV_PGRAPH_GPCX_GPCCS_RED_SWITCH, 0, $r15) - mov $r14 8 - ctx_redswitch_delay: - sub b32 $r14 1 - bra ne #ctx_redswitch_delay - or $r15 NV_PGRAPH_GPCX_GPCCS_RED_SWITCH_UNK11 - or $r15 NV_PGRAPH_GPCX_GPCCS_RED_SWITCH_ENABLE - nv_iowr(NV_PGRAPH_GPCX_GPCCS_RED_SWITCH, 0, $r15) - ret - -// Transfer GPC context data between GPU and storage area -// -// In: $r15 context base address -// $p1 clear on save, set on load -// $p2 set if opposite direction done/will be done, so: -// on save it means: "a load will follow this save" -// on load it means: "a save preceeded this load" -// -ctx_xfer: - // set context base address - nv_iowr(NV_PGRAPH_GPCX_GPCCS_MEM_BASE, 0, $r15) - bra not $p1 #ctx_xfer_not_load - call(ctx_redswitch) - ctx_xfer_not_load: - - // strands - call(strand_pre) - clear b32 $r2 - nv_iowr(NV_PGRAPH_GPCX_GPCCS_STRAND_SELECT, 0x3f, $r2) - xbit $r2 $flags $p1 // SAVE/LOAD - add b32 $r2 NV_PGRAPH_GPCX_GPCCS_STRAND_CMD_SAVE - nv_iowr(NV_PGRAPH_GPCX_GPCCS_STRAND_CMD, 0x3f, $r2) - - // mmio context - xbit $r10 $flags $p1 // direction - or $r10 2 // first - imm32($r11,0x500000) - ld b32 $r12 D[$r0 + #gpc_id] - shl b32 $r12 15 - add b32 $r11 $r12 // base = NV_PGRAPH_GPCn - ld b32 $r12 D[$r0 + #gpc_mmio_list_head] - ld b32 $r13 D[$r0 + #gpc_mmio_list_tail] - mov $r14 0 // not multi - call(mmctx_xfer) - - // per-TPC mmio context - xbit $r10 $flags $p1 // direction -#if !NV_PGRAPH_GPCX_UNK__SIZE - or $r10 4 // last -#endif - imm32($r11, 0x504000) - ld b32 $r12 D[$r0 + #gpc_id] - shl b32 $r12 15 - add b32 $r11 $r12 // base = NV_PGRAPH_GPCn_TPC0 - ld b32 $r12 D[$r0 + #tpc_mmio_list_head] - ld b32 $r13 D[$r0 + #tpc_mmio_list_tail] - ld b32 $r15 D[$r0 + #tpc_mask] - mov $r14 0x800 // stride = 0x800 - call(mmctx_xfer) - -#if NV_PGRAPH_GPCX_UNK__SIZE > 0 - // per-UNK mmio context - xbit $r10 $flags $p1 // direction - or $r10 4 // last - imm32($r11, 0x503000) - ld b32 $r12 D[$r0 + #gpc_id] - shl b32 $r12 15 - add b32 $r11 $r12 // base = NV_PGRAPH_GPCn_UNK0 - ld b32 $r12 D[$r0 + #unk_mmio_list_head] - ld b32 $r13 D[$r0 + #unk_mmio_list_tail] - ld b32 $r15 D[$r0 + #unk_mask] - mov $r14 0x200 // stride = 0x200 - call(mmctx_xfer) -#endif - - // wait for strands to finish - call(strand_wait) - - // if load, or a save without a load following, do some - // unknown stuff that's done after finishing a block of - // strand commands - bra $p1 #ctx_xfer_post - bra not $p2 #ctx_xfer_done - ctx_xfer_post: - call(strand_post) - - // mark completion in HUB's barrier - ctx_xfer_done: - call(hub_barrier_done) - ret -#endif |