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Code Issues Releases Activity

- Use quad_t for dcons buffer address and size.

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- Allow read/write access to dcons buffer passed by loader(8).
This commit is contained in:
Hidetoshi Shimokawa 2004-10-24 12:41:04 +00:00
parent 36b6815611
commit c751e6f0fa
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=136898
1 changed files with 11 additions and 4 deletions
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15
sys/dev/dcons/dcons_os.c
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@ -489,7 +489,7 @@ static int
dcons_drv_init(int stage)
{
#ifdef __i386__
int addr, size;
quad_t addr, size;
#endif
if (drv_init)
@ -504,10 +504,17 @@ dcons_drv_init(int stage)
dg.size = DCONS_BUF_SIZE;
#ifdef __i386__
if (getenv_int("dcons.addr", &addr) > 0 &&
getenv_int("dcons.size", &size) > 0) {
if (getenv_quad("dcons.addr", &addr) > 0 &&
getenv_quad("dcons.size", &size) > 0) {
vm_paddr_t pa;
/*
* Allow read/write access to dcons buffer.
*/
for (pa = trunc_page(addr); pa < addr + size; pa += PAGE_SIZE)
*vtopte(KERNBASE + pa) |= PG_RW;
invltlb();
/* XXX P to V */
dg.buf = (struct dcons_buf *)(KERNBASE + addr);
dg.buf = (struct dcons_buf *)(vm_offset_t)(KERNBASE + addr);
dg.size = size;
if (dcons_load_buffer(dg.buf, dg.size, sc) < 0)
dg.buf = NULL;