6.6-stable review patch. If anyone has any objections, please let me know.
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From: René Rebe rene@exactco.de
commit 35fa2b4bf96415b88d7edaa5cf8af5185d9ce76e upstream.
403ae52ac047 ("sparc: fix drivers/video/tcx.c warning") changed the physbase initializing breaking the user-space mmap, e.g. for Xorg entirely.
Fix fbdev mmap table so the sbus mmap helper work correctly, and not try to map vastly (physbase) offset memory.
Fixes: 403ae52ac047 ("sparc: fix drivers/video/tcx.c warning") Cc: stable@vger.kernel.org Signed-off-by: René Rebe rene@exactco.de Signed-off-by: Helge Deller deller@gmx.de Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/video/fbdev/tcx.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/video/fbdev/tcx.c +++ b/drivers/video/fbdev/tcx.c @@ -436,7 +436,7 @@ static int tcx_probe(struct platform_dev j = i; break; } - par->mmap_map[i].poff = op->resource[j].start; + par->mmap_map[i].poff = op->resource[j].start - info->fix.smem_start; }
info->fbops = &tcx_ops;