From e09b41010ba33a20a87472ee821fa407a5b8da36 Mon Sep 17 00:00:00 2001 From: José Pekkarinen Date: Mon, 11 Apr 2016 10:41:07 +0300 Subject: These changes are the raw update to linux-4.4.6-rt14. Kernel sources are taken from kernel.org, and rt patch from the rt wiki download page. MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit During the rebasing, the following patch collided: Force tick interrupt and get rid of softirq magic(I70131fb85). Collisions have been removed because its logic was found on the source already. Change-Id: I7f57a4081d9deaa0d9ccfc41a6c8daccdee3b769 Signed-off-by: José Pekkarinen --- kernel/drivers/video/fbdev/efifb.c | 24 +++++++++++++++++++++++- 1 file changed, 23 insertions(+), 1 deletion(-) (limited to 'kernel/drivers/video/fbdev/efifb.c') diff --git a/kernel/drivers/video/fbdev/efifb.c b/kernel/drivers/video/fbdev/efifb.c index 4bfff349b..95d293b74 100644 --- a/kernel/drivers/video/fbdev/efifb.c +++ b/kernel/drivers/video/fbdev/efifb.c @@ -114,6 +114,20 @@ static int efifb_setup(char *options) return 0; } +static inline bool fb_base_is_valid(void) +{ + if (screen_info.lfb_base) + return true; + + if (!(screen_info.capabilities & VIDEO_CAPABILITY_64BIT_BASE)) + return false; + + if (screen_info.ext_lfb_base) + return true; + + return false; +} + static int efifb_probe(struct platform_device *dev) { struct fb_info *info; @@ -141,7 +155,7 @@ static int efifb_probe(struct platform_device *dev) screen_info.lfb_depth = 32; if (!screen_info.pages) screen_info.pages = 1; - if (!screen_info.lfb_base) { + if (!fb_base_is_valid()) { printk(KERN_DEBUG "efifb: invalid framebuffer address\n"); return -ENODEV; } @@ -160,6 +174,14 @@ static int efifb_probe(struct platform_device *dev) } efifb_fix.smem_start = screen_info.lfb_base; + + if (screen_info.capabilities & VIDEO_CAPABILITY_64BIT_BASE) { + u64 ext_lfb_base; + + ext_lfb_base = (u64)(unsigned long)screen_info.ext_lfb_base << 32; + efifb_fix.smem_start |= ext_lfb_base; + } + efifb_defined.bits_per_pixel = screen_info.lfb_depth; efifb_defined.xres = screen_info.lfb_width; efifb_defined.yres = screen_info.lfb_height; -- cgit 1.2.3-korg