mirrors/linux
2
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git synced 2026-07-16 15:39:42 -04:00
Code Issues Packages Projects Releases Wiki Activity

sticon/parisc: Fix STI console on 64-bit only machines

Browse Source 
Fix the STI console to be able to execute either the 64-bit STI ROM code
or the 32-bit STI ROM code.

This is necessary on 64-bit only machines (e.g. C8000 workstation) which
otherwise won't show the STI text console with HP graphic cards like
Visualize-FX5/FX10/FXe.

Note that when calling 32-bit code from a 64-bit kernel one needs to
copy contents on the CPU stack from high memory down below the 4GB
limit.

Tested-by: John David Anglin <dave.anglin@bell.net>
Signed-off-by: Helge Deller <deller@gmx.de>
This commit is contained in:
Helge Deller
2023-05-10 22:17:27 +02:00
parent ededd9d278
commit 99ef0c67bc
3 changed files with 127 additions and 78 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
drivers/video/fbdev/stifb.c
View File

@@ -71,9 +71,9 @@
#include <video/sticore.h>
/* REGION_BASE(fb_info, index) returns the virtual address for region <index> */
/* REGION_BASE(fb_info, index) returns the physical address for region <index> */
#define REGION_BASE(fb_info, index) \
F_EXTEND(fb_info->sti->glob_cfg->region_ptrs[index])
F_EXTEND(fb_info->sti->regions_phys[index])
#define NGLEDEVDEPROM_CRT_REGION 1