From: Benjamin Herrenschmidt Date: Fri, 3 Oct 2014 05:18:59 +0000 (+1000) Subject: gpu/radeon: Set flag to indicate broken 64-bit MSI X-Git-Tag: omap-for-v3.19/fixes-for-merge-window~71^2~4 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=91ed6fd2c383bb8f02d66e98b4a4d2f7207249dc;p=pandora-kernel.git gpu/radeon: Set flag to indicate broken 64-bit MSI Some radeon ASICs don't support all 64 address bits of MSIs despite advertising support for 64-bit MSIs in their configuration space. This breaks on systems such as IBM POWER7/8, where 64-bit MSIs can be assigned with some of the high address bits set. This makes use of the newly introduced "no_64bit_msi" flag in structure pci_dev to allow the MSI allocation code to fallback to 32-bit MSIs on those adapters. Signed-off-by: Benjamin Herrenschmidt Reviewed-by: Alex Deucher CC: --- Adding Alex's review tag. Patch to the driver is identical to the reviewed one, I dropped the arch/powerpc hunk rewrote the subject and cset comment. --- Reading git-diff-tree failed