From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ben Widawsky Subject: [PATCH] drm/i915: Don't overclock on Haswell Date: Sat, 23 Mar 2013 17:46:31 -0700 Message-ID: <1364085991-20495-1-git-send-email-ben@bwidawsk.net> References: <1363749596-1429-1-git-send-email-ben@bwidawsk.net> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from shiva.localdomain (209-20-75-48.static.cloud-ips.com [209.20.75.48]) by gabe.freedesktop.org (Postfix) with ESMTP id 97C59E5D55 for ; Sat, 23 Mar 2013 17:44:26 -0700 (PDT) In-Reply-To: <1363749596-1429-1-git-send-email-ben@bwidawsk.net> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: intel-gfx-bounces+gcfxdi-intel-gfx=m.gmane.org@lists.freedesktop.org Errors-To: intel-gfx-bounces+gcfxdi-intel-gfx=m.gmane.org@lists.freedesktop.org To: intel-gfx@lists.freedesktop.org Cc: Ben Widawsky List-Id: intel-gfx@lists.freedesktop.org HSW doesn't overclock the same way as IVB or SNB. I do not know about VLV, so I've kept that off as well. I'm still working on getting the doc updates to explain how we overclock on Haswell. Cc: Jesse Barnes Signed-off-by: Ben Widawsky --- drivers/gpu/drm/i915/intel_pm.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c index ce3db2c..9c11dd9 100644 --- a/drivers/gpu/drm/i915/intel_pm.c +++ b/drivers/gpu/drm/i915/intel_pm.c @@ -2628,7 +2628,7 @@ static void gen6_enable_rps(struct drm_device *dev) (IS_HASWELL(dev) ? GEN7_RP_DOWN_IDLE_AVG : GEN6_RP_DOWN_IDLE_CONT)); ret = sandybridge_pcode_write(dev_priv, GEN6_PCODE_WRITE_MIN_FREQ_TABLE, 0); - if (!ret) { + if (!ret && IS_GEN6(dev) || IS_IVYBRIDGE(dev)) { pcu_mbox = 0; ret = sandybridge_pcode_read(dev_priv, GEN6_READ_OC_PARAMS, &pcu_mbox); if (!ret && (pcu_mbox & (1<<31))) { /* OC supported */ -- 1.8.2