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Diffstat (limited to 'arch/alpha/kernel/console.c')
-rw-r--r--arch/alpha/kernel/console.c70
1 files changed, 48 insertions, 22 deletions
diff --git a/arch/alpha/kernel/console.c b/arch/alpha/kernel/console.c
index f313b34939bb..da711e37fc97 100644
--- a/arch/alpha/kernel/console.c
+++ b/arch/alpha/kernel/console.c
@@ -9,16 +9,20 @@
#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
-/*
- * Externally-visible vga hose bases
- */
-unsigned long __vga_hose_io_base = 0; /* base for default hose */
-unsigned long __vga_hose_mem_base = 0; /* base for default 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)
@@ -30,36 +34,58 @@ default_vga_hose_select(struct pci_controller *h1, struct pci_controller *h2)
}
void __init
-set_vga_hose(struct pci_controller *hose)
-{
- if (hose) {
- __vga_hose_io_base = hose->io_space->start;
- __vga_hose_mem_base = hose->mem_space->start;
- }
-}
-
-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);
+ if (!hose)
+ hose = dev->sysdata;
+ else
+ hose = sel_func(hose, dev->sysdata);
}
- /* Did we already inititialize the correct one? */
- if (conswitchp == &vga_con &&
- __vga_hose_io_base == hose->io_space->start &&
- __vga_hose_mem_base == hose->mem_space->start)
+ /* Did we already initialize the correct one? Is there one? */
+ if (!hose || (conswitchp == &vga_con && pci_vga_hose == hose))
return;
- /* Set the VGA hose and init the new console */
- set_vga_hose(hose);
+ /* 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;
take_over_console(&vga_con, 0, MAX_NR_CONSOLES-1, 1);
}
+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