From: Gerd Hoffmann <kraxel@redhat.com>
To: linux-fbdev@vger.kernel.org
Cc: linux-kernel@vger.kernel.org, gregkh@linuxfoundation.org,
kys@microsoft.com, abgupta@microsoft.com, haiyangz@microsoft.com,
jasowang@redhat.com, tomi.valkeinen@ti.com,
devel@linuxdriverproject.org, Gerd Hoffmann <kraxel@redhat.com>,
Jean-Christophe Plagniol-Villard <plagnioj@jcrosoft.com>
Subject: [PATCH v3 4/4] hyperv-fb: kick off efifb early
Date: Mon, 24 Feb 2014 13:17:11 +0000 [thread overview]
Message-ID: <1393247831-5271-5-git-send-email-kraxel@redhat.com> (raw)
In-Reply-To: <1393247831-5271-1-git-send-email-kraxel@redhat.com>
Remove firmware framebuffer before initializing hyperv-fb. Needed
on gen2 virtual machines. Letting register_framebuffer handle the
switchover results in efifb still being active while hyperv graphics
are initialized, which in turn can make the linux kernel hang.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
---
drivers/video/hyperv_fb.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/video/hyperv_fb.c b/drivers/video/hyperv_fb.c
index 135d8cd..a570836 100644
--- a/drivers/video/hyperv_fb.c
+++ b/drivers/video/hyperv_fb.c
@@ -683,6 +683,7 @@ static int hvfb_getmem(struct fb_info *info)
info->apertures->ranges[0].base = pci_resource_start(pdev, 0);
info->apertures->ranges[0].size = pci_resource_len(pdev, 0);
}
+ remove_conflicting_framebuffers(info->apertures, "hyperv-fb", false);
info->fix.smem_start = par->mem.start;
info->fix.smem_len = screen_fb_size;
--
1.8.3.1
next prev parent reply other threads:[~2014-02-24 13:17 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-02-24 13:17 [PATCH v3 0/4] hyperv-fb: add support for generation 2 virtual machines Gerd Hoffmann
2014-02-24 13:17 ` [PATCH v3 1/4] vmbus: add missing breaks Gerd Hoffmann
2014-02-28 9:05 ` Tomi Valkeinen
2014-02-28 11:55 ` Gerd Hoffmann
2014-02-24 13:17 ` [PATCH v3 2/4] vmbus: use resource for hyperv mmio region Gerd Hoffmann
2014-02-24 21:57 ` KY Srinivasan
2014-02-24 13:17 ` [PATCH v3 3/4] hyperv-fb: add support for generation 2 virtual machines Gerd Hoffmann
2014-02-24 22:05 ` Haiyang Zhang
2014-02-24 13:17 ` Gerd Hoffmann [this message]
2014-02-24 22:06 ` [PATCH v3 4/4] hyperv-fb: kick off efifb early Haiyang Zhang
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