/* fuc microcode util functions for gf100 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
|
*/
|
|
#ifdef INCLUDE_CODE
|
// 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 b32 $r12 $r14
|
bset $r12 31 // MMIO_CTRL_PENDING
|
nv_iowr(NV_PGRAPH_FECS_MMIO_CTRL, 0, $r12)
|
nv_rd32_wait:
|
nv_iord($r12, NV_PGRAPH_FECS_MMIO_CTRL, 0)
|
xbit $r12 $r12 31
|
bra ne #nv_rd32_wait
|
mov $r10 6 // DONE_MMIO_RD
|
call(wait_doneo)
|
nv_iord($r15, NV_PGRAPH_FECS_MMIO_RDVAL, 0)
|
ret
|
|
// nv_wr32 - write 32-bit value to nv register
|
//
|
// In : $r14 register
|
// $r15 value
|
//
|
nv_wr32:
|
nv_iowr(NV_PGRAPH_FECS_MMIO_WRVAL, 0, $r15)
|
mov b32 $r12 $r14
|
bset $r12 31 // MMIO_CTRL_PENDING
|
bset $r12 30 // MMIO_CTRL_WRITE
|
nv_iowr(NV_PGRAPH_FECS_MMIO_CTRL, 0, $r12)
|
nv_wr32_wait:
|
nv_iord($r12, NV_PGRAPH_FECS_MMIO_CTRL, 0)
|
xbit $r12 $r12 31
|
bra ne #nv_wr32_wait
|
ret
|
|
// wait_donez - wait on FUC_DONE bit to become clear
|
//
|
// In : $r10 bit to wait on
|
//
|
wait_donez:
|
trace_set(T_WAIT);
|
nv_iowr(NV_PGRAPH_FECS_CC_SCRATCH_VAL(6), 0, $r10)
|
wait_donez_ne:
|
nv_iord($r8, NV_PGRAPH_FECS_SIGNAL, 0)
|
xbit $r8 $r8 $r10
|
bra ne #wait_donez_ne
|
trace_clr(T_WAIT)
|
ret
|
|
// wait_doneo - wait on FUC_DONE bit to become set
|
//
|
// In : $r10 bit to wait on
|
//
|
wait_doneo:
|
trace_set(T_WAIT);
|
nv_iowr(NV_PGRAPH_FECS_CC_SCRATCH_VAL(6), 0, $r10)
|
wait_doneo_e:
|
nv_iord($r8, NV_PGRAPH_FECS_SIGNAL, 0)
|
xbit $r8 $r8 $r10
|
bra e #wait_doneo_e
|
trace_clr(T_WAIT)
|
ret
|
|
// 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)
|
clear b32 $r9
|
or $r11 $r11
|
bra e #mmctx_base_disabled
|
nv_iowr(NV_PGRAPH_FECS_MMCTX_BASE, 0, $r11)
|
bset $r9 0 // BASE_EN
|
mmctx_base_disabled:
|
or $r14 $r14
|
bra e #mmctx_multi_disabled
|
nv_iowr(NV_PGRAPH_FECS_MMCTX_MULTI_STRIDE, 0, $r14)
|
nv_iowr(NV_PGRAPH_FECS_MMCTX_MULTI_MASK, 0, $r15)
|
bset $r9 1 // MULTI_EN
|
mmctx_multi_disabled:
|
|
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
|
nv_iowr(NV_PGRAPH_FECS_MMCTX_CTRL, 0, $r11)
|
|
// loop over the mmio list, and send requests to the hw
|
mmctx_exec_loop:
|
// wait for space in mmctx queue
|
mmctx_wait_free:
|
nv_iord($r14, NV_PGRAPH_FECS_MMCTX_CTRL, 0)
|
and $r14 0x1f
|
bra e #mmctx_wait_free
|
|
// queue up an entry
|
ld b32 $r14 D[$r12]
|
or $r14 $r9
|
nv_iowr(NV_PGRAPH_FECS_MMCTX_QUEUE, 0, $r14)
|
add b32 $r12 4
|
cmpu b32 $r12 $r13
|
bra ne #mmctx_exec_loop
|
|
xbit $r11 $r10 2
|
bra ne #mmctx_stop
|
// wait for queue to empty
|
mmctx_fini_wait:
|
nv_iord($r11, NV_PGRAPH_FECS_MMCTX_CTRL, 0)
|
and $r11 0x1f
|
cmpu b32 $r11 0x10
|
bra ne #mmctx_fini_wait
|
mov $r10 5 // 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
|
nv_iowr(NV_PGRAPH_FECS_MMCTX_CTRL, 0, $r11)
|
mmctx_stop_wait:
|
// wait for STOP_TRIGGER to clear
|
nv_iord($r11, NV_PGRAPH_FECS_MMCTX_CTRL, 0)
|
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 $r9 NV_PGRAPH_FECS_STRAND_CMD_ENABLE
|
nv_iowr(NV_PGRAPH_FECS_STRAND_CMD, 0x3f, $r9)
|
call(strand_wait)
|
ret
|
|
// unknown - call after issuing strand commands
|
//
|
strand_post:
|
mov $r9 NV_PGRAPH_FECS_STRAND_CMD_DISABLE
|
nv_iowr(NV_PGRAPH_FECS_STRAND_CMD, 0x3f, $r9)
|
call(strand_wait)
|
ret
|
|
// Selects strand set?!
|
//
|
// In: $r14 id
|
//
|
strand_set:
|
mov $r12 0xf
|
nv_iowr(NV_PGRAPH_FECS_STRAND_FILTER, 0x3f, $r12)
|
mov $r12 NV_PGRAPH_FECS_STRAND_CMD_DEACTIVATE_FILTER
|
nv_iowr(NV_PGRAPH_FECS_STRAND_CMD, 0x3f, $r12)
|
nv_iowr(NV_PGRAPH_FECS_STRAND_FILTER, 0x3f, $r14)
|
mov $r12 NV_PGRAPH_FECS_STRAND_CMD_ACTIVATE_FILTER
|
nv_iowr(NV_PGRAPH_FECS_STRAND_CMD, 0x3f, $r12)
|
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)
|
|
clear b32 $r12
|
nv_iowr(NV_PGRAPH_FECS_STRAND_SELECT, 0x3f, $r12)
|
mov $r12 NV_PGRAPH_FECS_STRAND_CMD_SEEK
|
nv_iowr(NV_PGRAPH_FECS_STRAND_CMD, 0x3f, $r12)
|
call(strand_wait)
|
sub b32 $r12 $r0 1
|
nv_iowr(NV_PGRAPH_FECS_STRAND_DATA, 0x3f, $r12)
|
mov $r12 NV_PGRAPH_FECS_STRAND_CMD_GET_INFO
|
nv_iowr(NV_PGRAPH_FECS_STRAND_CMD, 0x3f, $r12)
|
call(strand_wait)
|
call(strand_post)
|
|
// read the size of each strand, poke the context offset of
|
// each into STRAND_{SAVE,LOAD}_SWBASE now, no need to worry
|
// about it later then.
|
nv_mkio($r8, NV_PGRAPH_FECS_STRAND_SAVE_SWBASE, 0x00)
|
nv_iord($r9, NV_PGRAPH_FECS_STRANDS_CNT, 0x00)
|
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
|
#endif
|
