code wiki / _hdl_build / _gpu_dxg_r4e_map_recon.nx
_gpu_dxg_r4e_map_recon.nx
buildroot/runtime/_hdl_build/_gpu_dxg_r4e_map_recon.nx
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_gpu_dxg_r4e_map_recon.nx -- SOVEREIGN-GPU ladder R4e RECON: map the R4d allocation to a GPU VA on the 5080.
Full chain: device -> paging queue (R4c) -> EXISTINGHEAP allocation (R4d) -> LX_DXMAPGPUVIRTUALADDRESS.
= _IOWR(0x47,0x0c,104) = 0xC068470C. struct d3dddi_mapgpuvirtualaddress (natural-aligned, total 104):
paging_queue@0; base_address@8; minimum_address@16; maximum_address@24; allocation@32; offset_in_pages@40;
size_in_pages@48; protection@56 (u64 bitfield: write=bit0); driver_protection@64; reserved0@72; reserved1@80;
**virtual_address@88 (OUT)**; **paging_fence_value@96 (OUT)**. Async: ret==0 assigns the VA immediately;
page-in completes when the paging queue fence reaches paging_fence_value. Try base=0 (auto-assign VA) with a
couple of max_address / protection values; print ret + va@88 + fence@96. raw syscalls only. license_tier: ORIGINAL
dependencies 1 imports · 0 importers
imports: nx_syscalls.nx
imported by: nobody (leaf or entry point)
call flow from main pre-order; caps 40 nodes / depth 6 declared; ↻ = already shown
structs
| none |
consts
| 11 | const ENUM2_CODE: i64 = 0xC0104714 |
| 12 | const QAI_CODE: i64 = 0xC0184709 |
| 13 | const OAFL_CODE: i64 = 0xC00C4701 |
| 14 | const CDEV_CODE: i64 = 0xC0404702 |
| 15 | const CPQ_CODE: i64 = 0xC0204707 |
| 16 | const CALLOC_CODE: i64 = 0xC0484706 |
| 17 | const MAPVA_CODE: i64 = 0xC068470C |
functions
| 19 | func p(s: *u8) -> i64 { var nn: i64=0; while s[nn]!=(0 as u8){nn=nn+1} sys_write(1,s,nn); return 0 } |
| 20 | func n(v: i64) -> i64 { let bb: *u8=sys_mmap(28); var m: i64=v; if m<0{m=0-m;sys_write(1,"-" as *u8,1)}; let t: *u8=sys_mmap(28); var k: i64=0; if m==0{t[0]=48;k=1}; while m>0{t[k]=(48+(m%10)) as u8;m=m/10;k=k+1}; var i: i64=0; while i<k{bb[i]=t[k-1-i];i=i+1}; sys_write(1,bb,k); return 0 } |
| 21 | func x(v: i64) -> i64 { p("0x" as *u8); let bb:*u8=sys_mmap(20); var k:i64=0; var m:i64=v; if m==0{bb[0]=48;k=1}; while m>0{ let d:i64=m&15; if d<10{bb[k]=(48+d) as u8}else{bb[k]=(87+d) as u8}; m=(m>>4); k=k+1 } var i:i64=0; let o:*u8=sys_mmap(20); while i<k{o[i]=bb[k-1-i];i=i+1} sys_write(1,o,k); return 0 } |
| 22 | func rd32(buf: *u8, off: i64) -> i64 { return (buf[off] as i64)|((buf[off+1] as i64)<<8)|((buf[off+2] as i64)<<16)|((buf[off+3] as i64)<<24) } |
| 23 | func rd64(buf: *u8, off: i64) -> i64 { let q: *i64 = (buf as i64 + off) as *i64; return q[0] } called by 1: map_va |
| 24 | func setu32(buf: *u8, off: i64, val: i64) -> i64 { let w: *u8 = (buf as i64 + off) as *u8; w[0]=(val&0xff) as u8; w[1]=((val>>8)&0xff) as u8; w[2]=((val>>16)&0xff) as u8; w[3]=((val>>24)&0xff) as u8; return 0 } |
| 25 | func setu64(buf: *u8, off: i64, val: i64) -> i64 { let q: *i64 = (buf as i64 + off) as *i64; q[0]=val; return 0 } |
| 27 | func query_type(fd: i64, handle: i64, qtype: i64, psize: i64, outv: *i64) -> i64 |
| 35 | func open_from_luid(fd: i64, luid_lo: i64, luid_hi: i64, outh: *i64) -> i64 |
| 40 | func create_device(fd: i64, adapter: i64, outd: *i64) -> i64 |
| 45 | func create_pq(fd: i64, device: i64, outpq: *i64) -> i64 |
| 50 | func alloc_eh(fd: i64, device: i64, sysmem: *u8, outh: *i64) -> i64 |
| 61 | func map_va(fd: i64, pq: i64, alloc: i64, maxa: i64, sizepages: i64, prot: i64, outva: *i64, outf: *i64) -> i64 |
| 75 | func main() -> i64 |