From mboxrd@z Thu Jan 1 00:00:00 1970 From: Paul Mundt Date: Thu, 02 Jun 2011 08:20:39 +0000 Subject: Re: [PATCH 0/4] efifb speedup and fixes Message-Id: <20110602082039.GH6087@linux-sh.org> List-Id: References: In-Reply-To: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: linux-fbdev@vger.kernel.org On Thu, May 26, 2011 at 10:13:30AM -0400, Andy Lutomirski wrote: > Fbcon over efifb is so slow that I thought I needed a faster modem. > It turns out that scrolling boot messages at 1024x768 pixels with > uncached accesses can take longer than every other step of kernel > bootup *combined*. > > Fixing it is a one-liner, but I found some bugs while I was digging > around. One is a mismatched resource release (although not on my > box), one is a harmless compiler warning, and one fixes all manner of > badness that happens if you manually bind or unbind the efifb driver. > > The speedup may or may not be 2.6.40 material, but the other fixes > should probably go in. (2/4 and 4/4 are possibly -stable candidates.) > > Andy Lutomirski (4): > efifb: Enable write-combining > efifb: Fix mismatched request/release_mem_region > efifb: Fix an integer-to-pointer size warning > efifb: Disallow manual bind and unbind > I've applied patches 1, 2, and 4 along with Peter's sign off. I've not added a stable cc since neither were specifically regressions, so I'll just let Greg naturally decide whether to take them or not.