All of lore.kernel.org
 help / color / mirror / Atom feed
From: Bjorn Helgaas <helgaas@kernel.org>
To: Kai-Heng Feng <kai.heng.feng@canonical.com>,
	Rajvi Jingar <rajvi.jingar@linux.intel.com>,
	"Rafael J . Wysocki" <rafael@kernel.org>
Cc: Koba Ko <koba.ko@canonical.com>,
	Mika Westerberg <mika.westerberg@linux.intel.com>,
	"David E . Box" <david.e.box@linux.intel.com>,
	Sathyanarayanan Kuppuswamy 
	<sathyanarayanan.kuppuswamy@linux.intel.com>,
	linux-pci@vger.kernel.org, linux-pm@vger.kernel.org,
	linux-kernel@vger.kernel.org, Bjorn Helgaas <bhelgaas@google.com>
Subject: [PATCH v3 09/10] PCI/PTM: Reorder functions in logical order
Date: Tue,  6 Sep 2022 17:23:50 -0500	[thread overview]
Message-ID: <20220906222351.64760-10-helgaas@kernel.org> (raw)
In-Reply-To: <20220906222351.64760-1-helgaas@kernel.org>

From: Bjorn Helgaas <bhelgaas@google.com>

pci_enable_ptm() and pci_disable_ptm() were separated.
pci_save_ptm_state() and pci_restore_ptm_state() dangled at the top.  Move
them to logical places.

Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
---
 drivers/pci/pcie/ptm.c | 108 ++++++++++++++++++++---------------------
 1 file changed, 54 insertions(+), 54 deletions(-)

diff --git a/drivers/pci/pcie/ptm.c b/drivers/pci/pcie/ptm.c
index d65f5af9700d..6c09e00a7b51 100644
--- a/drivers/pci/pcie/ptm.c
+++ b/drivers/pci/pcie/ptm.c
@@ -9,60 +9,6 @@
 #include <linux/pci.h>
 #include "../pci.h"
 
-static void __pci_disable_ptm(struct pci_dev *dev)
-{
-	int ptm = dev->ptm_cap;
-	u16 ctrl;
-
-	if (!ptm)
-		return;
-
-	pci_read_config_word(dev, ptm + PCI_PTM_CTRL, &ctrl);
-	ctrl &= ~PCI_PTM_CTRL_ENABLE;
-	pci_write_config_word(dev, ptm + PCI_PTM_CTRL, ctrl);
-}
-
-void pci_disable_ptm(struct pci_dev *dev)
-{
-	__pci_disable_ptm(dev);
-	dev->ptm_enabled = 0;
-}
-EXPORT_SYMBOL(pci_disable_ptm);
-
-void pci_save_ptm_state(struct pci_dev *dev)
-{
-	int ptm = dev->ptm_cap;
-	struct pci_cap_saved_state *save_state;
-	u16 *cap;
-
-	if (!ptm)
-		return;
-
-	save_state = pci_find_saved_ext_cap(dev, PCI_EXT_CAP_ID_PTM);
-	if (!save_state)
-		return;
-
-	cap = (u16 *)&save_state->cap.data[0];
-	pci_read_config_word(dev, ptm + PCI_PTM_CTRL, cap);
-}
-
-void pci_restore_ptm_state(struct pci_dev *dev)
-{
-	int ptm = dev->ptm_cap;
-	struct pci_cap_saved_state *save_state;
-	u16 *cap;
-
-	if (!ptm)
-		return;
-
-	save_state = pci_find_saved_ext_cap(dev, PCI_EXT_CAP_ID_PTM);
-	if (!save_state)
-		return;
-
-	cap = (u16 *)&save_state->cap.data[0];
-	pci_write_config_word(dev, ptm + PCI_PTM_CTRL, *cap);
-}
-
 /*
  * If the next upstream device supports PTM, return it; otherwise return
  * NULL.  PTM Messages are local, so both link partners must support it.
@@ -132,6 +78,40 @@ void pci_ptm_init(struct pci_dev *dev)
 		pci_enable_ptm(dev, NULL);
 }
 
+void pci_save_ptm_state(struct pci_dev *dev)
+{
+	int ptm = dev->ptm_cap;
+	struct pci_cap_saved_state *save_state;
+	u16 *cap;
+
+	if (!ptm)
+		return;
+
+	save_state = pci_find_saved_ext_cap(dev, PCI_EXT_CAP_ID_PTM);
+	if (!save_state)
+		return;
+
+	cap = (u16 *)&save_state->cap.data[0];
+	pci_read_config_word(dev, ptm + PCI_PTM_CTRL, cap);
+}
+
+void pci_restore_ptm_state(struct pci_dev *dev)
+{
+	int ptm = dev->ptm_cap;
+	struct pci_cap_saved_state *save_state;
+	u16 *cap;
+
+	if (!ptm)
+		return;
+
+	save_state = pci_find_saved_ext_cap(dev, PCI_EXT_CAP_ID_PTM);
+	if (!save_state)
+		return;
+
+	cap = (u16 *)&save_state->cap.data[0];
+	pci_write_config_word(dev, ptm + PCI_PTM_CTRL, *cap);
+}
+
 static int __pci_enable_ptm(struct pci_dev *dev)
 {
 	int ptm = dev->ptm_cap;
@@ -193,6 +173,26 @@ int pci_enable_ptm(struct pci_dev *dev, u8 *granularity)
 }
 EXPORT_SYMBOL(pci_enable_ptm);
 
+static void __pci_disable_ptm(struct pci_dev *dev)
+{
+	int ptm = dev->ptm_cap;
+	u16 ctrl;
+
+	if (!ptm)
+		return;
+
+	pci_read_config_word(dev, ptm + PCI_PTM_CTRL, &ctrl);
+	ctrl &= ~PCI_PTM_CTRL_ENABLE;
+	pci_write_config_word(dev, ptm + PCI_PTM_CTRL, ctrl);
+}
+
+void pci_disable_ptm(struct pci_dev *dev)
+{
+	__pci_disable_ptm(dev);
+	dev->ptm_enabled = 0;
+}
+EXPORT_SYMBOL(pci_disable_ptm);
+
 /*
  * Disable PTM, but leave dev->ptm_enabled so we silently re-enable it on
  * resume.
-- 
2.25.1


  parent reply	other threads:[~2022-09-06 22:24 UTC|newest]

Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-09-06 22:23 [PATCH v3 00/10] PCI/PM: Always disable PTM for all devices during suspend Bjorn Helgaas
2022-09-06 22:23 ` [PATCH v3 01/10] PCI/PTM: Preserve PTM Root Select Bjorn Helgaas
2022-09-06 22:23 ` [PATCH v3 02/10] PCI/PTM: Cache PTM Capability offset Bjorn Helgaas
2022-09-06 23:18   ` Sathyanarayanan Kuppuswamy
2022-09-07 15:49     ` Bjorn Helgaas
2022-09-06 22:23 ` [PATCH v3 03/10] PCI/PTM: Add pci_upstream_ptm() helper Bjorn Helgaas
2022-09-06 22:23 ` [PATCH v3 04/10] PCI/PTM: Separate configuration and enable Bjorn Helgaas
2022-09-07  5:25   ` Mika Westerberg
2022-09-06 22:23 ` [PATCH v3 05/10] PCI/PTM: Add pci_disable_ptm() wrapper Bjorn Helgaas
2022-09-07  5:28   ` Mika Westerberg
2022-09-07 21:12     ` Bjorn Helgaas
2022-09-06 22:23 ` [PATCH v3 06/10] PCI/PTM: Add pci_enable_ptm() wrapper Bjorn Helgaas
2022-09-07  5:29   ` Mika Westerberg
2022-09-08 20:18   ` Sathyanarayanan Kuppuswamy
2022-09-06 22:23 ` [PATCH v3 07/10] PCI/PTM: Add suspend/resume Bjorn Helgaas
2022-09-07  5:30   ` Mika Westerberg
2022-09-07 16:44     ` Bjorn Helgaas
2022-09-06 22:23 ` [PATCH v3 08/10] PCI/PTM: Move pci_ptm_info() body into its only caller Bjorn Helgaas
2022-09-06 22:23 ` Bjorn Helgaas [this message]
2022-09-08 20:15   ` [PATCH v3 09/10] PCI/PTM: Reorder functions in logical order Sathyanarayanan Kuppuswamy
2022-09-08 20:58     ` Bjorn Helgaas
2022-09-06 22:23 ` [PATCH v3 10/10] PCI/PM: Always disable PTM for all devices during suspend Bjorn Helgaas

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20220906222351.64760-10-helgaas@kernel.org \
    --to=helgaas@kernel.org \
    --cc=bhelgaas@google.com \
    --cc=david.e.box@linux.intel.com \
    --cc=kai.heng.feng@canonical.com \
    --cc=koba.ko@canonical.com \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-pci@vger.kernel.org \
    --cc=linux-pm@vger.kernel.org \
    --cc=mika.westerberg@linux.intel.com \
    --cc=rafael@kernel.org \
    --cc=rajvi.jingar@linux.intel.com \
    --cc=sathyanarayanan.kuppuswamy@linux.intel.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.