From mboxrd@z Thu Jan 1 00:00:00 1970 From: Lucas Kannebley Tavares Subject: [PATCHv3 0/2] Speed Cap fixes for ppc64 Date: Thu, 11 Apr 2013 10:13:12 -0300 Message-ID: <1365685994-32603-1-git-send-email-lucaskt@linux.vnet.ibm.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: linuxppc-dev-bounces+glppe-linuxppc-embedded-2=m.gmane.org@lists.ozlabs.org Sender: "Linuxppc-dev" To: linuxppc-dev@lists.ozlabs.org, dri-devel@lists.freedesktop.org, Benjamin Herrenschmidt , Bjorn Helgaas , David Airlie Cc: Kleber Sacilotto de Souza , Alex Deucher , Jerome Glisse , Thadeu Lima de Souza Cascardo , Lucas Kannebley Tavares , Brian King List-Id: dri-devel@lists.freedesktop.org After all the comments in the last patch series, I did a refactoring of what I was proposing and came up with this. Basically, now: 1. max_bus_speed is used to set the device to gen2 speeds 2. on power there's no longer a conflict between the pseries call and other architectures, because the overwrite is done via a ppc_md hook 3. radeon is using bus->max_bus_speed instead of drm_pcie_get_speed_cap_mask for gen2 capability detection The first patch consists of some architecture changes, such as adding a hook on powerpc for pci_root_bridge_prepare, so that pseries will initialize it to a function, while all other architectures get a NULL pointer. So that whenever whenever pci_create_root_bus is called, we'll get max_bus_speed properly setup from OpenFirmware. The second patch consists of simple radeon changes not to call drm_get_pcie_speed_cap_mask anymore. I assume that on x86 machines, the max_bus_speed property will be properly set already. Lucas Kannebley Tavares (2): ppc64: perform proper max_bus_speed detection radeon: use max_bus_speed to activate gen2 speeds arch/powerpc/include/asm/machdep.h | 2 + arch/powerpc/kernel/pci-common.c | 8 +++++ arch/powerpc/platforms/pseries/pci.c | 51 ++++++++++++++++++++++++++++++++ arch/powerpc/platforms/pseries/setup.c | 4 ++ drivers/gpu/drm/radeon/evergreen.c | 9 +---- drivers/gpu/drm/radeon/r600.c | 8 +---- drivers/gpu/drm/radeon/rv770.c | 8 +---- 7 files changed, 69 insertions(+), 21 deletions(-) -- 1.7.4.4