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keep some processes mapped in always; direct message copying

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where possible (no buffering); no more explicit vm checkranges
in kernel; new allocator for vm using avl tree without needing
remapping
This commit is contained in:
Ben Gras
2009-06-08 04:02:22 +00:00
parent e2a7535c55
commit ac86f5bb49
35 changed files with 1770 additions and 755 deletions
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drivers/lance/lance.c
+1
View File
@@ -522,6 +522,7 @@ pci_init();
}
else
{
printf("lance buf: 0x%lx\n", vir2phys(lance_buf));
report( "LANCE", "DMA denied because address out of range", NO_NUM );
}
drivers/random/main.c
+1 -1
View File
@@ -305,7 +305,7 @@ message *m_ptr; /* pointer to alarm message */
random_update(RND_TIMING, &r, 1);
/* Schedule new alarm for next m_random call. */
if (OK != (s=sys_setalarm(KRANDOM_PERIOD, 0)))
if (OK != (s=sys_setalarm(random_isseeded() ? KRANDOM_PERIOD : sys_hz(), 0)))
report("RANDOM", "sys_setalarm failed", s);
}
drivers/tty/console.c
+4 -22
View File
@@ -52,7 +52,6 @@ PRIVATE unsigned font_lines; /* font lines per character */
PRIVATE unsigned scr_width; /* # characters on a line */
PRIVATE unsigned scr_lines; /* # lines on the screen */
PRIVATE unsigned scr_size; /* # characters on the screen */
PUBLIC unsigned info_location; /* location in video memory of struct */
/* tells mem_vid_copy() to blank the screen */
#define BLANK_MEM ((vir_bytes) 0)
@@ -66,9 +65,6 @@ PRIVATE int disabled_sm; /* Scroll mode to be restored when re-enabling
char *console_memory = NULL;
/* boot_tty_info we use to communicate with the boot code. */
struct boot_tty_info boot_tty_info;
/* Per console data. */
typedef struct console {
tty_t *c_tty; /* associated TTY struct */
@@ -90,24 +86,14 @@ typedef struct console {
int c_line; /* line no */
} console_t;
#define UPDATEBOOTINFO(ccons, infofield, value) { \
if(ccons->c_line == 0) { \
boot_tty_info.infofield = value; \
mem_vid_copy((vir_bytes) &boot_tty_info, \
info_location/2, sizeof(boot_tty_info)/2); \
} \
}
#define UPDATE_CURSOR(ccons, cursor) { \
ccons->c_cur = cursor; \
UPDATEBOOTINFO(ccons, conscursor, ccons->c_cur); \
if(curcons && ccons == curcons) \
set_6845(CURSOR, ccons->c_cur); \
}
#define UPDATE_ORIGIN(ccons, origin) { \
ccons->c_org = origin; \
UPDATEBOOTINFO(ccons, consorigin, ccons->c_org); \
if (curcons && ccons == curcons) \
set_6845(VID_ORG, ccons->c_org); \
}
@@ -1001,13 +987,15 @@ tty_t *tp;
}
if (machine.vdu_ega) vid_size = EGA_SIZE;
wrap = ! machine.vdu_ega;
info_location = vid_size - sizeof(struct boot_tty_info);
console_memory = vm_map_phys(SELF, (void *) vid_base, vid_size);
if(console_memory == MAP_FAILED)
panic("TTY","Console couldn't map video memory", NO_NUM);
printf("TTY: vm_map_phys of 0x%lx OK, result 0x%lx",
vid_base, console_memory);
vid_size >>= 1; /* word count */
vid_mask = vid_size - 1;
@@ -1015,7 +1003,7 @@ tty_t *tp;
scr_size = scr_lines * scr_width;
/* There can be as many consoles as video memory allows. */
nr_cons = (vid_size - sizeof(struct boot_tty_info)/2) / scr_size;
nr_cons = vid_size / scr_size;
if (nr_cons > NR_CONS) nr_cons = NR_CONS;
if (nr_cons > 1) wrap = 0;
@@ -1038,12 +1026,6 @@ tty_t *tp;
scroll_screen(cons, SCROLL_UP);
cons->c_row = scr_lines - 1;
cons->c_column = 0;
memset(&boot_tty_info, 0, sizeof(boot_tty_info));
UPDATE_CURSOR(cons, cons->c_cur);
boot_tty_info.flags = BTIF_CONSCURSOR | BTIF_CONSORIGIN;
boot_tty_info.magic = TTYMAGIC;
UPDATE_ORIGIN(cons, cons->c_org);
}
select_console(0);
cons_ioctl(tp, 0);