From patchwork Mon Sep 18 13:10:54 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Ilpo_J=C3=A4rvinen?= X-Patchwork-Id: 13389927 Received: from lindbergh.monkeyblade.net (lindbergh.monkeyblade.net [23.128.96.19]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 3807038F8F for ; Mon, 18 Sep 2023 15:47:37 +0000 (UTC) Received: from mgamail.intel.com (mgamail.intel.com [134.134.136.100]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 8581419A7; Mon, 18 Sep 2023 08:44:46 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1695051886; x=1726587886; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=ymkN+p4ogpYhyDF99HjDp+8yFzsuK5k5J5zb7K9eDd0=; b=WyHkEmtrm5ATwt3VZF3xouUzV+1P0o1Dqg2HoOZ+BKYydtWtnXwtcaOP Xvpc94Gi/UaJdDQWqq+wUVoqq9d2JlN5k69AcrbEOJlT9rILhbVY3eaH9 /OhdDztnpucygMldh3EdBIYDX6kDyeoUDhF5Lr6URItuwzzMVqHPnkN6Q iBpXnvYJ55wdFfTniVQ/jwz1JvgOmhJVG5dDe2q/tEnAGDRHimNpGYaeC ruj5nZ55AfqTXfyetcpA3HD1yNJ5kDYm4Jt4blwHa2gt1S02jFE10+pPZ O9dRIWtX3p15gHgqKBk7IicaMXHM1uhTucg88Ix/woQVRpigZaoDz+6lN Q==; X-IronPort-AV: E=McAfee;i="6600,9927,10837"; a="446113130" X-IronPort-AV: E=Sophos;i="6.02,156,1688454000"; d="scan'208";a="446113130" Received: from fmsmga008.fm.intel.com ([10.253.24.58]) by orsmga105.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 18 Sep 2023 06:12:08 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10837"; a="811341856" X-IronPort-AV: E=Sophos;i="6.02,156,1688454000"; d="scan'208";a="811341856" Received: from nprotaso-mobl1.ccr.corp.intel.com (HELO ijarvine-mobl2.ger.corp.intel.com) ([10.252.49.156]) by fmsmga008-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 18 Sep 2023 06:12:02 -0700 From: =?utf-8?q?Ilpo_J=C3=A4rvinen?= To: linux-pci@vger.kernel.org, Bjorn Helgaas , Lorenzo Pieralisi , Rob Herring , =?utf-8?q?Krzysztof_Wilczy=C5=84ski?= , Lukas Wunner , "Rafael J . Wysocki" , Heiner Kallweit , Emmanuel Grumbach , linux-kernel@vger.kernel.org, Bjorn Helgaas Cc: ath10k@lists.infradead.org, ath11k@lists.infradead.org, ath12k@lists.infradead.org, intel-wired-lan@lists.osuosl.org, linux-arm-kernel@lists.infradead.org, linux-bluetooth@vger.kernel.org, linux-mediatek@lists.infradead.org, linux-rdma@vger.kernel.org, linux-wireless@vger.kernel.org, netdev@vger.kernel.org, =?utf-8?q?Ilpo_J?= =?utf-8?q?=C3=A4rvinen?= Subject: [PATCH v2 04/13] PCI/ASPM: Move L0S/L1/sub states mask calculation into a helper Date: Mon, 18 Sep 2023 16:10:54 +0300 Message-Id: <20230918131103.24119-5-ilpo.jarvinen@linux.intel.com> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20230918131103.24119-1-ilpo.jarvinen@linux.intel.com> References: <20230918131103.24119-1-ilpo.jarvinen@linux.intel.com> Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Spam-Status: No, score=-2.0 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_EF,RCVD_IN_DNSWL_BLOCKED, SPF_HELO_NONE,SPF_NONE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net ASPM service driver does the same L0S / L1S / sub states allowed calculation in __pci_disable_link_state() and pci_set_default_link_state(). Create a helper to calculate the mask for the allowed states. Signed-off-by: Ilpo Järvinen --- drivers/pci/pcie/aspm.c | 33 +++++++++++++++++++++------------ 1 file changed, 21 insertions(+), 12 deletions(-) diff --git a/drivers/pci/pcie/aspm.c b/drivers/pci/pcie/aspm.c index ec6d7a092ac1..91dc95aca90f 100644 --- a/drivers/pci/pcie/aspm.c +++ b/drivers/pci/pcie/aspm.c @@ -1034,6 +1034,26 @@ static struct pcie_link_state *pcie_aspm_get_link(struct pci_dev *pdev) return bridge->link_state; } +static u8 pci_link_state_mask(int state) +{ + u8 result = 0; + + if (state & PCIE_LINK_STATE_L0S) + result |= ASPM_STATE_L0S; + if (state & PCIE_LINK_STATE_L1) + result |= ASPM_STATE_L1; + if (state & PCIE_LINK_STATE_L1_1) + result |= ASPM_STATE_L1_1; + if (state & PCIE_LINK_STATE_L1_2) + result |= ASPM_STATE_L1_2; + if (state & PCIE_LINK_STATE_L1_1_PCIPM) + result |= ASPM_STATE_L1_1_PCIPM; + if (state & PCIE_LINK_STATE_L1_2_PCIPM) + result |= ASPM_STATE_L1_2_PCIPM; + + return result; +} + static int __pci_disable_link_state(struct pci_dev *pdev, int state, bool sem) { struct pcie_link_state *link = pcie_aspm_get_link(pdev); @@ -1063,18 +1083,7 @@ static int __pci_disable_link_state(struct pci_dev *pdev, int state, bool sem) if (sem) down_read(&pci_bus_sem); mutex_lock(&aspm_lock); - if (state & PCIE_LINK_STATE_L0S) - link->aspm_disable |= ASPM_STATE_L0S; - if (state & PCIE_LINK_STATE_L1) - link->aspm_disable |= ASPM_STATE_L1; - if (state & PCIE_LINK_STATE_L1_1) - link->aspm_disable |= ASPM_STATE_L1_1; - if (state & PCIE_LINK_STATE_L1_2) - link->aspm_disable |= ASPM_STATE_L1_2; - if (state & PCIE_LINK_STATE_L1_1_PCIPM) - link->aspm_disable |= ASPM_STATE_L1_1_PCIPM; - if (state & PCIE_LINK_STATE_L1_2_PCIPM) - link->aspm_disable |= ASPM_STATE_L1_2_PCIPM; + link->aspm_disable |= pci_link_state_mask(state); pcie_config_aspm_link(link, policy_to_aspm_state(link)); if (state & PCIE_LINK_STATE_CLKPM)