Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758475Ab3EIWe5 (ORCPT ); Thu, 9 May 2013 18:34:57 -0400 Received: from mail.linuxfoundation.org ([140.211.169.12]:46352 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1758436Ab3EIWex (ORCPT ); Thu, 9 May 2013 18:34:53 -0400 From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Alex Deucher Subject: [ 14/26] drm/radeon: dont use get_engine_clock() on APUs Date: Thu, 9 May 2013 15:34:28 -0700 Message-Id: <20130509223423.927520868@linuxfoundation.org> X-Mailer: git-send-email 1.8.3.rc0.20.gb99dd2e In-Reply-To: <20130509223422.368544659@linuxfoundation.org> References: <20130509223422.368544659@linuxfoundation.org> User-Agent: quilt/0.60-5.1.1 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1699 Lines: 43 3.4-stable review patch. If anyone has any objections, please let me know. ------------------ From: Alex Deucher commit bf05d9985111f85ed6922c134567b96eb789283b upstream. It doesn't work reliably. Just report back the currently selected engine clock. Partially fixes: https://bugs.freedesktop.org/show_bug.cgi?id=62493 Signed-off-by: Alex Deucher Signed-off-by: Greg Kroah-Hartman --- drivers/gpu/drm/radeon/radeon_pm.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) --- a/drivers/gpu/drm/radeon/radeon_pm.c +++ b/drivers/gpu/drm/radeon/radeon_pm.c @@ -872,7 +872,11 @@ static int radeon_debugfs_pm_info(struct struct radeon_device *rdev = dev->dev_private; seq_printf(m, "default engine clock: %u0 kHz\n", rdev->pm.default_sclk); - seq_printf(m, "current engine clock: %u0 kHz\n", radeon_get_engine_clock(rdev)); + /* radeon_get_engine_clock is not reliable on APUs so just print the current clock */ + if ((rdev->family >= CHIP_PALM) && (rdev->flags & RADEON_IS_IGP)) + seq_printf(m, "current engine clock: %u0 kHz\n", rdev->pm.current_sclk); + else + seq_printf(m, "current engine clock: %u0 kHz\n", radeon_get_engine_clock(rdev)); seq_printf(m, "default memory clock: %u0 kHz\n", rdev->pm.default_mclk); if (rdev->asic->pm.get_memory_clock) seq_printf(m, "current memory clock: %u0 kHz\n", radeon_get_memory_clock(rdev)); -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/