linux-kernel - Re: [PATCH 0/2] Fix s2idle resume on HP 15s-eq2xxx

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Date:   Tue, 11 Jul 2023 11:47:15 +0200
From:   Hans de Goede <hdegoede@...hat.com>
To:     Mario Limonciello <mario.limonciello@....com>
Cc:     Mark Gross <mgross@...ux.intel.com>,
        "open list:X86 PLATFORM DRIVERS" 
        <platform-driver-x86@...r.kernel.org>,
        Shyam Sundar S K <Shyam-sundar.S-k@....com>,
        open list <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 0/2] Fix s2idle resume on HP 15s-eq2xxx

Hi Mario,

On 7/10/23 20:39, Mario Limonciello wrote:
> HP 15s-eq2xxx has problems resuming from s2idle when IOMMU is enabled.
> This is the same root cause as some Lenovo laptops had where IOMMU enabled
> caused issues with NVME during s2idle resume from a problematic SMI.
> 
> To series fixes the issue by re-using the same quirk developed from the
> older Lenovo laptops.
> 
> Mario Limonciello (2):
>   platform/x86: Move s2idle quirk from thinkpad-acpi to amd-pmc
>   platform/x86/amd: pmc: Apply nvme quirk to HP 15s-eq2xxx
> 
>  drivers/platform/x86/amd/Makefile     |   2 +-
>  drivers/platform/x86/amd/pmc-quirks.c | 172 ++++++++++++++++++++++++++
>  drivers/platform/x86/amd/pmc.c        |  30 +----
>  drivers/platform/x86/amd/pmc.h        |  43 +++++++
>  drivers/platform/x86/thinkpad_acpi.c  | 143 ---------------------
>  5 files changed, 222 insertions(+), 168 deletions(-)
>  create mode 100644 drivers/platform/x86/amd/pmc-quirks.c
>  create mode 100644 drivers/platform/x86/amd/pmc.h

Thank you for your series, I've applied this series to my fixes
branch:
https://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86.git/log/?h=fixes

For patch 1/2 the inclusion of linux/pci.h in
drivers/platform/x86/amd/pmc.h is not necessary, where as
some actually needed headers (types and mutex) were missing.

So I've moved the pci.h include back to pmc.c and added
a few missing includes. I have squashed the following diff
into 1/2 while merging for this:

diff --git a/drivers/platform/x86/amd/pmc-quirks.c b/drivers/platform/x86/amd/pmc-quirks.c
index cdf4c7d0a36b..362e7c0097d7 100644
--- a/drivers/platform/x86/amd/pmc-quirks.c
+++ b/drivers/platform/x86/amd/pmc-quirks.c
@@ -9,6 +9,9 @@
  */
 
 #include <linux/dmi.h>
+#include <linux/io.h>
+#include <linux/ioport.h>
+#include <linux/slab.h>
 
 #include "pmc.h"
 
diff --git a/drivers/platform/x86/amd/pmc.c b/drivers/platform/x86/amd/pmc.c
index 5a9bc062fa8a..a8ca95a5d44c 100644
--- a/drivers/platform/x86/amd/pmc.c
+++ b/drivers/platform/x86/amd/pmc.c
@@ -20,6 +20,7 @@
 #include <linux/iopoll.h>
 #include <linux/limits.h>
 #include <linux/module.h>
+#include <linux/pci.h>
 #include <linux/platform_device.h>
 #include <linux/rtc.h>
 #include <linux/serio.h>
diff --git a/drivers/platform/x86/amd/pmc.h b/drivers/platform/x86/amd/pmc.h
index 8f78985ba340..c27bd6a5642f 100644
--- a/drivers/platform/x86/amd/pmc.h
+++ b/drivers/platform/x86/amd/pmc.h
@@ -11,7 +11,8 @@
 #ifndef PMC_H
 #define PMC_H
 
-#include <linux/pci.h>
+#include <linux/types.h>
+#include <linux/mutex.h>
 
 struct amd_pmc_dev {
 	void __iomem *regbase;

Since this is just changing #include-s this should not cause
any functional changes.

I will include this series in my next fixes pull-req to Linus
for the current kernel development cycle.

Regards,

Hans