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Code Issues Releases Wiki Activity

修复ahci缓冲区地址错误的问题

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fslongjin
2022-04-09 21:15:51 +08:00
parent 05dc7ac73b
commit 3063a340e2
1 changed files with 2 additions and 2 deletions

4
kernel/driver/disk/ahci/ahci.c

@ -315,13 +315,13 @@ static bool ahci_write(HBA_PORT *port, uint32_t startl, uint32_t starth, uint32_
int i = 0; int i = 0;
for (i = 0; i < cmdheader->prdtl - 1; ++i) for (i = 0; i < cmdheader->prdtl - 1; ++i)
{ {
cmdtbl->prdt_entry[i].dba = buf; cmdtbl->prdt_entry[i].dba = virt_2_phys(buf);
cmdtbl->prdt_entry[i].dbc = 8 * 1024 - 1; // 8K bytes cmdtbl->prdt_entry[i].dbc = 8 * 1024 - 1; // 8K bytes
cmdtbl->prdt_entry[i].i = 0; cmdtbl->prdt_entry[i].i = 0;
buf += 4 * 1024; // 4K words buf += 4 * 1024; // 4K words
count -= 16; // 16 sectors count -= 16; // 16 sectors
} }
cmdtbl->prdt_entry[i].dba = buf; cmdtbl->prdt_entry[i].dba = virt_2_phys(buf);
cmdtbl->prdt_entry[i].dbc = count << 9; // 512 bytes per sector cmdtbl->prdt_entry[i].dbc = count << 9; // 512 bytes per sector
cmdtbl->prdt_entry[i].i = 0; cmdtbl->prdt_entry[i].i = 0;