DragonOS-Community/DragonOS
4
1
Fork 0
mirror of https://github.com/DragonOS-Community/DragonOS.git synced 2025-06-14 20:26:48 +00:00
Code Issues Releases Wiki Activity

修复ahci缓冲区地址错误的问题

Browse Source
This commit is contained in:
fslongjin 2022-04-09 21:15:51 +08:00
parent 05dc7ac73b
commit 3063a340e2
1 changed files with 2 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

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

@ -315,13 +315,13 @@ static bool ahci_write(HBA_PORT *port, uint32_t startl, uint32_t starth, uint32_
int i = 0;
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].i = 0;
buf += 4 * 1024; // 4K words
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].i = 0;