Deaicup/Deshab-OS
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Record networking and DMA development progress

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Add the current OS source tree, build scripts, system image layout, and development notes covering DMA page allocation, e1000 bring-up, net API dispatch, and DHCP work in progress.
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xyou
2026-07-02 16:17:09 +08:00
parent fbc14631e3
commit f1a2a110d7
182 changed files with 16472 additions and 0 deletions
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CODE/UTSM/core/dmp.c
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#include <utsm/dmp.h>
#include <utsm/segment.h>
#define UTSM_DMP_MAGIC 0x5554534d444d5031ULL
void utsm_dmp_init(utsm_dmp *dmp, utsm_segment_desc *desc, u32 slot) {
dmp->magic = UTSM_DMP_MAGIC;
dmp->version = 1;
dmp->segment_slot = slot;
dmp->fast_base = (u64)desc->cipher_base;
dmp->fast_limit = (u64)desc->cipher_base + desc->cipher_length;
dmp->fast_tweak_seed = desc->tweak_seed;
dmp->fast_key_epoch = desc->key_epoch;
dmp->dirty_bitmap_base = desc->dirty_shards ? (u64)desc->dirty_shards[0].bitmap : 0;
dmp->mac_table_base = (u64)desc->mac_table;
dmp->last_writer_seq = desc->writer_seq;
dmp->last_cpu = desc->last_cpu;
dmp->flags = desc->flags;
dmp->crc = dmp->magic ^ dmp->fast_base ^ dmp->fast_limit ^ dmp->fast_tweak_seed;
}