From: "Saheed O. Bolarinwa" <refactormyself@gmail.com>
To: helgaas@kernel.org
Cc: "Saheed O. Bolarinwa" <refactormyself@gmail.com>,
linux-kernel-mentees@lists.linuxfoundation.org
Subject: [Linux-kernel-mentees] [RFC PATCH v5 10/23] PCI: Relocate call to aspm_calc_l1ss_info
Date: Sat, 22 Aug 2020 22:03:45 +0200 [thread overview]
Message-ID: <20200822200358.252967-11-refactormyself@gmail.com> (raw)
In-Reply-To: <20200822200358.252967-1-refactormyself@gmail.com>
This function calculates pcie_link_state.l1ss.{ctl1, ctl2} which are
only used inside pcie_config_aspm_l1ss().
Move call to aspm_calc_l1ss_info from pcie_aspm_cap_init() to
pcie_config_aspm_l1ss().
Signed-off-by: Saheed O. Bolarinwa <refactormyself@gmail.com>
---
drivers/pci/pcie/aspm.c | 6 ++----
1 file changed, 2 insertions(+), 4 deletions(-)
diff --git a/drivers/pci/pcie/aspm.c b/drivers/pci/pcie/aspm.c
index bf728c82158f..89f3f3a6d007 100644
--- a/drivers/pci/pcie/aspm.c
+++ b/drivers/pci/pcie/aspm.c
@@ -578,9 +578,6 @@ static void pcie_aspm_cap_init(struct pcie_link_state *link, int blacklist)
if (up_l1ss_ctl1 & dw_l1ss_ctl1 & PCI_L1SS_CTL1_PCIPM_L1_2)
link->aspm_enabled |= ASPM_STATE_L1_2_PCIPM;
- if (link->aspm_support & ASPM_STATE_L1SS)
- aspm_calc_l1ss_info(link);
-
/* Save default state */
link->aspm_default = link->aspm_enabled;
@@ -628,7 +625,8 @@ static void pcie_config_aspm_l1ss(struct pcie_link_state *link, u32 state)
u32 up_cap_ptr = link->l1ss.up_cap_ptr;
u32 dw_cap_ptr = link->l1ss.dw_cap_ptr;
- enable_req = (link->aspm_enabled ^ state) & state;
+ enable_req = (parent->aspm_enabled ^ state) & state;
+ aspm_calc_l1ss_info(link);
/*
* Here are the rules specified in the PCIe spec for enabling L1SS:
--
2.18.4
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next prev parent reply other threads:[~2020-08-22 21:03 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-08-22 20:03 [Linux-kernel-mentees] [RFC PATCH v5 00/23] Remove struct pcie_link_state and aspm_register_info Saheed O. Bolarinwa
2020-08-22 20:03 ` [Linux-kernel-mentees] [RFC PATCH v5 01/23] PCI: Migrate ASPM info from struct pcie_link_state to struct pci_dev Saheed O. Bolarinwa
2020-08-22 20:03 ` [Linux-kernel-mentees] [RFC PATCH v5 02/23] PCI: Add l1ss_cap and l1ss_cap_ptr " Saheed O. Bolarinwa
2020-08-22 20:03 ` [Linux-kernel-mentees] [RFC PATCH v5 03/23] PCI: Rework calc_l*_latency() to take a pci_dev * Saheed O. Bolarinwa
2020-08-22 20:03 ` [Linux-kernel-mentees] [RFC PATCH v5 04/23] PCI: Compute aspm_register_info.support directly Saheed O. Bolarinwa
2020-08-22 20:03 ` [Linux-kernel-mentees] [RFC PATCH v5 05/23] PCI: Read value of aspm_register_info.l1ss_ctl1 directly Saheed O. Bolarinwa
2020-08-22 20:03 ` [Linux-kernel-mentees] [RFC PATCH v5 06/23] PCI: Replace aspm_register_info.l1ss_cap* with their pci_dev version Saheed O. Bolarinwa
2020-08-22 20:03 ` [Linux-kernel-mentees] [RFC PATCH v5 07/23] PCI: Compute aspm_register_info.enable directly Saheed O. Bolarinwa
2020-08-22 20:03 ` [Linux-kernel-mentees] [RFC PATCH v5 08/23] PCI: Remove unused aspm_calc_l1ss_info() arguments Saheed O. Bolarinwa
2020-08-22 20:03 ` [Linux-kernel-mentees] [RFC PATCH v5 09/23] PCI: Remove pcie_get_aspm_reg() and struct aspm_register_info Saheed O. Bolarinwa
2020-08-22 20:03 ` Saheed O. Bolarinwa [this message]
2020-08-22 20:03 ` [Linux-kernel-mentees] [RFC PATCH v5 11/23] PCI: Rework and Rename aspm_calc_l1ss_info() Saheed O. Bolarinwa
2020-08-22 20:03 ` [Linux-kernel-mentees] [RFC PATCH v5 12/23] PCI: Add ASPM and CLOCK PM states to struct pci_dev Saheed O. Bolarinwa
2020-08-22 20:03 ` [Linux-kernel-mentees] [RFC PATCH v5 13/23] PCI: Initialise and Update values of pci_dev's PCIe link info Saheed O. Bolarinwa
2020-08-22 20:03 ` [Linux-kernel-mentees] [RFC PATCH v5 14/23] PCI: Change Return and Argument values from pcie_link_state to pci_dev Saheed O. Bolarinwa
2020-08-22 20:03 ` [Linux-kernel-mentees] [RFC PATCH v5 15/23] PCI: Replace pcie_link_state based device list with a pci_dev one Saheed O. Bolarinwa
2020-08-22 20:03 ` [Linux-kernel-mentees] [RFC PATCH v5 16/23] PCI: Remove Exit latencies from struct pcie_link_state Saheed O. Bolarinwa
2020-08-22 20:03 ` [Linux-kernel-mentees] [RFC PATCH v5 17/23] PCI: Remove .clkpm_* " Saheed O. Bolarinwa
2020-08-22 20:03 ` [Linux-kernel-mentees] [RFC PATCH v5 18/23] PCI: Remove .aspm_* " Saheed O. Bolarinwa
2020-08-22 20:03 ` [Linux-kernel-mentees] [RFC PATCH v5 19/23] PCI: Remove .parent " Saheed O. Bolarinwa
2020-08-22 20:03 ` [Linux-kernel-mentees] [RFC PATCH v5 20/23] PCI: Remove .root " Saheed O. Bolarinwa
2020-08-22 20:03 ` [Linux-kernel-mentees] [RFC PATCH v5 21/23] PCI: Remove .downstream " Saheed O. Bolarinwa
2020-08-22 20:03 ` [Linux-kernel-mentees] [RFC PATCH v5 22/23] PCI: Remove .pdev " Saheed O. Bolarinwa
2020-08-22 20:03 ` [Linux-kernel-mentees] [RFC PATCH v5 23/23] PCI: Remove " Saheed O. Bolarinwa
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