code wiki / _hdl_build / _gpu_dxg_r4c_recon.nx

_gpu_dxg_r4c_recon.nx

buildroot/runtime/_hdl_build/_gpu_dxg_r4c_recon.nx

5512 B79 linesdepth 2pulls 2 transitivereach 0 importersview sourcekind tooltopic gpu
docsdependenciesstructsconstsfunctions

about

_gpu_dxg_r4c_recon.nx -- SOVEREIGN-GPU ladder R4c RECON (allocate real GPU memory on the 5080). LX_DXCREATEALLOCATION (nr=0x06 in the dxgkrnl table) is the real-GPU-memory rung. Unlike device/context, it carries an allocation_info array + (for a UMD-less "standard allocation") a private-runtime-data descriptor, so it will NOT succeed on all-zeros -- this recon just MAPS the ABI: which _IOC_SIZE for nr=0x06 is recognized (non-ENOTTY) vs which are -ENOTTY, with the device handle at offset 0 and the rest zero. The recognized size + the error (expected -EINVAL = "recognized, needs real descriptors") tells us the struct size so a focused R4c gate can build the d3dkmt_allocationinfo2 + standard-allocation header. raw syscalls only. No log writes. license_tier: ORIGINAL

dependencies 1 imports · 0 importers

nx_syscalls.nx _gpu_dxg_r4c_recon.nx

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

main p sys_write sys_openat_rd sys_exit sys_mmap sys_ioctl rd32 query_type sys_mmap ↻ sys_ioctl ↻ rd32 ↻ open_from_luid sys_mmap ↻ sys_ioctl ↻ rd32 ↻ create_device sys_mmap ↻ sys_ioctl ↻ rd32 ↻ n sys_mmap ↻ sys_write ↻ x p ↻ sys_mmap ↻ sys_write ↻ iowr sys_close

structs

none

consts

12const ENUM2_CODE: i64 = 0xC0104714
13const QAI_CODE: i64 = 0xC0184709
14const OAFL_CODE: i64 = 0xC00C4701
15const CDEV_CODE: i64 = 0xC0404702

functions

17func p(s: *u8) -> i64 { var nn: i64=0; while s[nn]!=(0 as u8){nn=nn+1} sys_write(1,s,nn); return 0 }
called by 2: xmain calls 1: sys_write
18func 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 }
called by 1: main calls 2: sys_mmapsys_write
19func 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 }
called by 1: main calls 3: psys_mmapsys_write
20func iowr(nr: i64, size: i64) -> i64 { return (3 << 30) | ((size & 0x3fff) << 16) | (0x47 << 8) | (nr & 0xff) }
called by 1: main
21func 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) }
23func query_type(fd: i64, handle: i64, qtype: i64, psize: i64, outv: *i64) -> i64
called by 1: main calls 3: sys_mmapsys_ioctlrd32
31func open_from_luid(fd: i64, luid_lo: i64, luid_hi: i64, outh: *i64) -> i64
called by 1: main calls 3: sys_mmapsys_ioctlrd32
36func create_device(fd: i64, adapter: i64, outd: *i64) -> i64
called by 1: main calls 3: sys_mmapsys_ioctlrd32
42func main() -> i64