mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-26 17:45:12 +07:00
155957f56c
Impact:
1:convert all remain take_over_console to do_take_over_console
2:update take_over_console to do_take_over_console in comment
Commit dc9641895a ("vt: delete unneeded functions
register_con_driver|take_over_console") delete take_over_console,
but forget to convert remain take_over_console's users to new API
do_take_over_console, this patch fix it.
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Wang YanQing <udknight@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
94 lines
2.0 KiB
C
94 lines
2.0 KiB
C
/*
|
|
* linux/arch/alpha/kernel/console.c
|
|
*
|
|
* Architecture-specific specific support for VGA device on
|
|
* non-0 I/O hose
|
|
*/
|
|
|
|
#include <linux/pci.h>
|
|
#include <linux/init.h>
|
|
#include <linux/tty.h>
|
|
#include <linux/console.h>
|
|
#include <linux/vt.h>
|
|
#include <asm/vga.h>
|
|
#include <asm/machvec.h>
|
|
|
|
#include "pci_impl.h"
|
|
|
|
#ifdef CONFIG_VGA_HOSE
|
|
|
|
struct pci_controller *pci_vga_hose;
|
|
static struct resource alpha_vga = {
|
|
.name = "alpha-vga+",
|
|
.start = 0x3C0,
|
|
.end = 0x3DF
|
|
};
|
|
|
|
static struct pci_controller * __init
|
|
default_vga_hose_select(struct pci_controller *h1, struct pci_controller *h2)
|
|
{
|
|
if (h2->index < h1->index)
|
|
return h2;
|
|
|
|
return h1;
|
|
}
|
|
|
|
void __init
|
|
locate_and_init_vga(void *(*sel_func)(void *, void *))
|
|
{
|
|
struct pci_controller *hose = NULL;
|
|
struct pci_dev *dev = NULL;
|
|
|
|
/* Default the select function */
|
|
if (!sel_func) sel_func = (void *)default_vga_hose_select;
|
|
|
|
/* Find the console VGA device */
|
|
for(dev=NULL; (dev=pci_get_class(PCI_CLASS_DISPLAY_VGA << 8, dev));) {
|
|
if (!hose)
|
|
hose = dev->sysdata;
|
|
else
|
|
hose = sel_func(hose, dev->sysdata);
|
|
}
|
|
|
|
/* Did we already initialize the correct one? Is there one? */
|
|
if (!hose || (conswitchp == &vga_con && pci_vga_hose == hose))
|
|
return;
|
|
|
|
/* Create a new VGA ioport resource WRT the hose it is on. */
|
|
alpha_vga.start += hose->io_space->start;
|
|
alpha_vga.end += hose->io_space->start;
|
|
request_resource(hose->io_space, &alpha_vga);
|
|
|
|
/* Set the VGA hose and init the new console. */
|
|
pci_vga_hose = hose;
|
|
console_lock();
|
|
do_take_over_console(&vga_con, 0, MAX_NR_CONSOLES-1, 1);
|
|
console_unlock();
|
|
}
|
|
|
|
void __init
|
|
find_console_vga_hose(void)
|
|
{
|
|
u64 *pu64 = (u64 *)((u64)hwrpb + hwrpb->ctbt_offset);
|
|
|
|
if (pu64[7] == 3) { /* TERM_TYPE == graphics */
|
|
struct pci_controller *hose;
|
|
int h = (pu64[30] >> 24) & 0xff; /* console hose # */
|
|
|
|
/*
|
|
* Our hose numbering DOES match the console's, so find
|
|
* the right one...
|
|
*/
|
|
for (hose = hose_head; hose; hose = hose->next) {
|
|
if (hose->index == h) break;
|
|
}
|
|
|
|
if (hose) {
|
|
printk("Console graphics on hose %d\n", h);
|
|
pci_vga_hose = hose;
|
|
}
|
|
}
|
|
}
|
|
|
|
#endif
|