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authorLinus Torvalds <torvalds@linux-foundation.org>2022-06-04 13:50:23 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2022-06-04 13:50:23 -0700
commit23df9ba64bb9e26cfee6b34f5c3ece49a8a61ee1 (patch)
treefdf7e069a458588c88fae7c59704c6ab7dc10b30 /drivers/video
parent4ccbe91de91a8f9559052179d15c0229a8ac9f8a (diff)
parentb046f984814af7985f444150ec28716d42d00d9a (diff)
downloadlinux-23df9ba64bb9e26cfee6b34f5c3ece49a8a61ee1.tar.bz2
Merge tag 'for-5.19/parisc-2' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux
Pull more parisc architecture updates from Helge Deller: "A fix to prevent crash at bootup if CONFIG_SCHED_MC is enabled, and add auto-detection of primary graphics card for framebuffer driver" * tag 'for-5.19/parisc-2' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux: parisc/stifb: Keep track of hardware path of graphics card parisc/stifb: Implement fb_is_primary_device() parisc: fix a crash with multicore scheduler
Diffstat (limited to 'drivers/video')
-rw-r--r--drivers/video/console/sticon.c5
-rw-r--r--drivers/video/console/sticore.c32
-rw-r--r--drivers/video/fbdev/sticore.h3
-rw-r--r--drivers/video/fbdev/stifb.c4
4 files changed, 33 insertions, 11 deletions
diff --git a/drivers/video/console/sticon.c b/drivers/video/console/sticon.c
index 40496e9e9b43..f304163e87e9 100644
--- a/drivers/video/console/sticon.c
+++ b/drivers/video/console/sticon.c
@@ -46,6 +46,7 @@
#include <linux/slab.h>
#include <linux/font.h>
#include <linux/crc32.h>
+#include <linux/fb.h>
#include <asm/io.h>
@@ -392,7 +393,9 @@ static int __init sticonsole_init(void)
for (i = 0; i < MAX_NR_CONSOLES; i++)
font_data[i] = STI_DEF_FONT;
- pr_info("sticon: Initializing STI text console.\n");
+ pr_info("sticon: Initializing STI text console on %s at [%s]\n",
+ sticon_sti->sti_data->inq_outptr.dev_name,
+ sticon_sti->pa_path);
console_lock();
err = do_take_over_console(&sti_con, 0, MAX_NR_CONSOLES - 1,
PAGE0->mem_cons.cl_class != CL_DUPLEX);
diff --git a/drivers/video/console/sticore.c b/drivers/video/console/sticore.c
index 837011be9978..fa23bf0247b0 100644
--- a/drivers/video/console/sticore.c
+++ b/drivers/video/console/sticore.c
@@ -30,10 +30,11 @@
#include <asm/pdc.h>
#include <asm/cacheflush.h>
#include <asm/grfioctl.h>
+#include <asm/fb.h>
#include "../fbdev/sticore.h"
-#define STI_DRIVERVERSION "Version 0.9b"
+#define STI_DRIVERVERSION "Version 0.9c"
static struct sti_struct *default_sti __read_mostly;
@@ -502,7 +503,7 @@ sti_select_fbfont(struct sti_cooked_rom *cooked_rom, const char *fbfont_name)
if (!fbfont)
return NULL;
- pr_info("STI selected %ux%u framebuffer font %s for sticon\n",
+ pr_info(" using %ux%u framebuffer font %s\n",
fbfont->width, fbfont->height, fbfont->name);
bpc = ((fbfont->width+7)/8) * fbfont->height;
@@ -967,6 +968,7 @@ out_err:
static void sticore_check_for_default_sti(struct sti_struct *sti, char *path)
{
+ pr_info(" located at [%s]\n", sti->pa_path);
if (strcmp (path, default_sti_path) == 0)
default_sti = sti;
}
@@ -978,7 +980,6 @@ static void sticore_check_for_default_sti(struct sti_struct *sti, char *path)
*/
static int __init sticore_pa_init(struct parisc_device *dev)
{
- char pa_path[21];
struct sti_struct *sti = NULL;
int hpa = dev->hpa.start;
@@ -991,8 +992,8 @@ static int __init sticore_pa_init(struct parisc_device *dev)
if (!sti)
return 1;
- print_pa_hwpath(dev, pa_path);
- sticore_check_for_default_sti(sti, pa_path);
+ print_pa_hwpath(dev, sti->pa_path);
+ sticore_check_for_default_sti(sti, sti->pa_path);
return 0;
}
@@ -1028,9 +1029,8 @@ static int sticore_pci_init(struct pci_dev *pd, const struct pci_device_id *ent)
sti = sti_try_rom_generic(rom_base, fb_base, pd);
if (sti) {
- char pa_path[30];
- print_pci_hwpath(pd, pa_path);
- sticore_check_for_default_sti(sti, pa_path);
+ print_pci_hwpath(pd, sti->pa_path);
+ sticore_check_for_default_sti(sti, sti->pa_path);
}
if (!sti) {
@@ -1148,6 +1148,22 @@ int sti_call(const struct sti_struct *sti, unsigned long func,
return ret;
}
+/* check if given fb_info is the primary device */
+int fb_is_primary_device(struct fb_info *info)
+{
+ struct sti_struct *sti;
+
+ sti = sti_get_rom(0);
+
+ /* if no built-in graphics card found, allow any fb driver as default */
+ if (!sti)
+ return true;
+
+ /* return true if it's the default built-in framebuffer driver */
+ return (sti->info == info);
+}
+EXPORT_SYMBOL(fb_is_primary_device);
+
MODULE_AUTHOR("Philipp Rumpf, Helge Deller, Thomas Bogendoerfer");
MODULE_DESCRIPTION("Core STI driver for HP's NGLE series graphics cards in HP PARISC machines");
MODULE_LICENSE("GPL v2");
diff --git a/drivers/video/fbdev/sticore.h b/drivers/video/fbdev/sticore.h
index c338f7848ae2..0ebdd28a0b81 100644
--- a/drivers/video/fbdev/sticore.h
+++ b/drivers/video/fbdev/sticore.h
@@ -370,6 +370,9 @@ struct sti_struct {
/* pointer to all internal data */
struct sti_all_data *sti_data;
+
+ /* pa_path of this device */
+ char pa_path[24];
};
diff --git a/drivers/video/fbdev/stifb.c b/drivers/video/fbdev/stifb.c
index bebb2eea6448..38a861e22c33 100644
--- a/drivers/video/fbdev/stifb.c
+++ b/drivers/video/fbdev/stifb.c
@@ -1358,11 +1358,11 @@ static int __init stifb_init_fb(struct sti_struct *sti, int bpp_pref)
goto out_err3;
}
+ /* save for primary gfx device detection & unregister_framebuffer() */
+ sti->info = info;
if (register_framebuffer(&fb->info) < 0)
goto out_err4;
- sti->info = info; /* save for unregister_framebuffer() */
-
fb_info(&fb->info, "%s %dx%d-%d frame buffer device, %s, id: %04x, mmio: 0x%04lx\n",
fix->id,
var->xres,