// $r0 - zero
rd32:
nv_iowr(NV_PPWR_MMIO_ADDR, $r14)
- mov $r14 NV_PPWR_MMIO_CTRL_OP_RD
- sethi $r14 NV_PPWR_MMIO_CTRL_TRIGGER
- nv_iowr(NV_PPWR_MMIO_CTRL, $r14)
+ mov $r13 NV_PPWR_MMIO_CTRL_OP_RD
+ sethi $r13 NV_PPWR_MMIO_CTRL_TRIGGER
+ nv_iowr(NV_PPWR_MMIO_CTRL, $r13)
rd32_wait:
- nv_iord($r14, NV_PPWR_MMIO_CTRL)
- and $r14 NV_PPWR_MMIO_CTRL_STATUS
+ nv_iord($r13, NV_PPWR_MMIO_CTRL)
+ and $r13 NV_PPWR_MMIO_CTRL_STATUS
bra nz #rd32_wait
nv_iord($r13, NV_PPWR_MMIO_DATA)
ret
wr32:
nv_iowr(NV_PPWR_MMIO_ADDR, $r14)
nv_iowr(NV_PPWR_MMIO_DATA, $r13)
- mov $r14 NV_PPWR_MMIO_CTRL_OP_WR
- or $r14 NV_PPWR_MMIO_CTRL_MASK_B32_0
- sethi $r14 NV_PPWR_MMIO_CTRL_TRIGGER
+ mov $r13 NV_PPWR_MMIO_CTRL_OP_WR
+ or $r13 NV_PPWR_MMIO_CTRL_MASK_B32_0
+ sethi $r13 NV_PPWR_MMIO_CTRL_TRIGGER
#ifdef NVKM_FALCON_MMIO_TRAP
- mov $r8 NV_PPWR_INTR_TRIGGER_USER1
- nv_iowr(NV_PPWR_INTR_TRIGGER, $r8)
+ push $r13
+ mov $r13 NV_PPWR_INTR_TRIGGER_USER1
+ nv_iowr(NV_PPWR_INTR_TRIGGER, $r13)
wr32_host:
- nv_iord($r8, NV_PPWR_INTR)
- and $r8 NV_PPWR_INTR_USER1
+ nv_iord($r13, NV_PPWR_INTR)
+ and $r13 NV_PPWR_INTR_USER1
bra nz #wr32_host
+ pop $r13
#endif
- nv_iowr(NV_PPWR_MMIO_CTRL, $r14)
+ nv_iowr(NV_PPWR_MMIO_CTRL, $r13)
wr32_wait:
- nv_iord($r14, NV_PPWR_MMIO_CTRL)
- and $r14 NV_PPWR_MMIO_CTRL_STATUS
+ nv_iord($r13, NV_PPWR_MMIO_CTRL)
+ and $r13 NV_PPWR_MMIO_CTRL_STATUS
bra nz #wr32_wait
ret