* [PATCH 1/2] x86/intel: Disable HPET on Intel Coffee Lake H platforms
@ 2019-11-29 6:23 Kai-Heng Feng
2019-11-29 6:23 ` [PATCH 2/2] x86/intel: Disable HPET on Intel Ice Lake platforms Kai-Heng Feng
2019-11-29 11:23 ` [tip: timers/urgent] x86/intel: Disable HPET on Intel Coffee Lake H platforms tip-bot2 for Kai-Heng Feng
0 siblings, 2 replies; 4+ messages in thread
From: Kai-Heng Feng @ 2019-11-29 6:23 UTC (permalink / raw)
To: tglx, mingo, bp
Cc: hpa, harry.pan, feng.tang, x86, linux-kernel, Kai-Heng Feng
Coffee Lake H SoC has similar behavior as Coffee Lake, skewed HPET timer
once the SoCs entered PC10.
So let's disable HPET on CFL-H platforms.
Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
---
arch/x86/kernel/early-quirks.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/arch/x86/kernel/early-quirks.c b/arch/x86/kernel/early-quirks.c
index 4cba91ec8049..606711f5ebf8 100644
--- a/arch/x86/kernel/early-quirks.c
+++ b/arch/x86/kernel/early-quirks.c
@@ -710,6 +710,8 @@ static struct chipset early_qrk[] __initdata = {
*/
{ PCI_VENDOR_ID_INTEL, 0x0f00,
PCI_CLASS_BRIDGE_HOST, PCI_ANY_ID, 0, force_disable_hpet},
+ { PCI_VENDOR_ID_INTEL, 0x3e20,
+ PCI_CLASS_BRIDGE_HOST, PCI_ANY_ID, 0, force_disable_hpet},
{ PCI_VENDOR_ID_INTEL, 0x3ec4,
PCI_CLASS_BRIDGE_HOST, PCI_ANY_ID, 0, force_disable_hpet},
{ PCI_VENDOR_ID_BROADCOM, 0x4331,
--
2.17.1
^ permalink raw reply related [flat|nested] 4+ messages in thread* [PATCH 2/2] x86/intel: Disable HPET on Intel Ice Lake platforms
2019-11-29 6:23 [PATCH 1/2] x86/intel: Disable HPET on Intel Coffee Lake H platforms Kai-Heng Feng
@ 2019-11-29 6:23 ` Kai-Heng Feng
2019-11-29 11:23 ` [tip: timers/urgent] " tip-bot2 for Kai-Heng Feng
2019-11-29 11:23 ` [tip: timers/urgent] x86/intel: Disable HPET on Intel Coffee Lake H platforms tip-bot2 for Kai-Heng Feng
1 sibling, 1 reply; 4+ messages in thread
From: Kai-Heng Feng @ 2019-11-29 6:23 UTC (permalink / raw)
To: tglx, mingo, bp
Cc: hpa, harry.pan, feng.tang, x86, linux-kernel, Kai-Heng Feng
Like CFL and CFL-H, ICL SoC has skewed HPET timer once it hits PC10.
So let's disable HPET on ICL.
Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
---
arch/x86/kernel/early-quirks.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/arch/x86/kernel/early-quirks.c b/arch/x86/kernel/early-quirks.c
index 606711f5ebf8..2f9ec14be3b1 100644
--- a/arch/x86/kernel/early-quirks.c
+++ b/arch/x86/kernel/early-quirks.c
@@ -714,6 +714,8 @@ static struct chipset early_qrk[] __initdata = {
PCI_CLASS_BRIDGE_HOST, PCI_ANY_ID, 0, force_disable_hpet},
{ PCI_VENDOR_ID_INTEL, 0x3ec4,
PCI_CLASS_BRIDGE_HOST, PCI_ANY_ID, 0, force_disable_hpet},
+ { PCI_VENDOR_ID_INTEL, 0x8a12,
+ PCI_CLASS_BRIDGE_HOST, PCI_ANY_ID, 0, force_disable_hpet},
{ PCI_VENDOR_ID_BROADCOM, 0x4331,
PCI_CLASS_NETWORK_OTHER, PCI_ANY_ID, 0, apple_airport_reset},
{}
--
2.17.1
^ permalink raw reply related [flat|nested] 4+ messages in thread* [tip: timers/urgent] x86/intel: Disable HPET on Intel Ice Lake platforms
2019-11-29 6:23 ` [PATCH 2/2] x86/intel: Disable HPET on Intel Ice Lake platforms Kai-Heng Feng
@ 2019-11-29 11:23 ` tip-bot2 for Kai-Heng Feng
0 siblings, 0 replies; 4+ messages in thread
From: tip-bot2 for Kai-Heng Feng @ 2019-11-29 11:23 UTC (permalink / raw)
To: linux-tip-commits
Cc: Kai-Heng Feng, Linus Torvalds, Peter Zijlstra, Thomas Gleixner,
bp, feng.tang, harry.pan, hpa, Ingo Molnar, x86, LKML
The following commit has been merged into the timers/urgent branch of tip:
Commit-ID: e0748539e3d594dd26f0d27a270f14720b22a406
Gitweb: https://git.kernel.org/tip/e0748539e3d594dd26f0d27a270f14720b22a406
Author: Kai-Heng Feng <kai.heng.feng@canonical.com>
AuthorDate: Fri, 29 Nov 2019 14:23:03 +08:00
Committer: Ingo Molnar <mingo@kernel.org>
CommitterDate: Fri, 29 Nov 2019 12:17:58 +01:00
x86/intel: Disable HPET on Intel Ice Lake platforms
Like CFL and CFL-H, ICL SoC has skewed HPET timer once it hits PC10.
So let's disable HPET on ICL.
Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: bp@alien8.de
Cc: feng.tang@intel.com
Cc: harry.pan@intel.com
Cc: hpa@zytor.com
Link: https://lkml.kernel.org/r/20191129062303.18982-2-kai.heng.feng@canonical.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
arch/x86/kernel/early-quirks.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/arch/x86/kernel/early-quirks.c b/arch/x86/kernel/early-quirks.c
index 606711f..2f9ec14 100644
--- a/arch/x86/kernel/early-quirks.c
+++ b/arch/x86/kernel/early-quirks.c
@@ -714,6 +714,8 @@ static struct chipset early_qrk[] __initdata = {
PCI_CLASS_BRIDGE_HOST, PCI_ANY_ID, 0, force_disable_hpet},
{ PCI_VENDOR_ID_INTEL, 0x3ec4,
PCI_CLASS_BRIDGE_HOST, PCI_ANY_ID, 0, force_disable_hpet},
+ { PCI_VENDOR_ID_INTEL, 0x8a12,
+ PCI_CLASS_BRIDGE_HOST, PCI_ANY_ID, 0, force_disable_hpet},
{ PCI_VENDOR_ID_BROADCOM, 0x4331,
PCI_CLASS_NETWORK_OTHER, PCI_ANY_ID, 0, apple_airport_reset},
{}
^ permalink raw reply related [flat|nested] 4+ messages in thread
* [tip: timers/urgent] x86/intel: Disable HPET on Intel Coffee Lake H platforms
2019-11-29 6:23 [PATCH 1/2] x86/intel: Disable HPET on Intel Coffee Lake H platforms Kai-Heng Feng
2019-11-29 6:23 ` [PATCH 2/2] x86/intel: Disable HPET on Intel Ice Lake platforms Kai-Heng Feng
@ 2019-11-29 11:23 ` tip-bot2 for Kai-Heng Feng
1 sibling, 0 replies; 4+ messages in thread
From: tip-bot2 for Kai-Heng Feng @ 2019-11-29 11:23 UTC (permalink / raw)
To: linux-tip-commits
Cc: Kai-Heng Feng, Linus Torvalds, Peter Zijlstra, Thomas Gleixner,
bp, feng.tang, harry.pan, hpa, Ingo Molnar, x86, LKML
The following commit has been merged into the timers/urgent branch of tip:
Commit-ID: f8edbde885bbcab6a2b4a1b5ca614e6ccb807577
Gitweb: https://git.kernel.org/tip/f8edbde885bbcab6a2b4a1b5ca614e6ccb807577
Author: Kai-Heng Feng <kai.heng.feng@canonical.com>
AuthorDate: Fri, 29 Nov 2019 14:23:02 +08:00
Committer: Ingo Molnar <mingo@kernel.org>
CommitterDate: Fri, 29 Nov 2019 12:17:58 +01:00
x86/intel: Disable HPET on Intel Coffee Lake H platforms
Coffee Lake H SoC has similar behavior as Coffee Lake, skewed HPET timer
once the SoCs entered PC10.
So let's disable HPET on CFL-H platforms.
Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: bp@alien8.de
Cc: feng.tang@intel.com
Cc: harry.pan@intel.com
Cc: hpa@zytor.com
Link: https://lkml.kernel.org/r/20191129062303.18982-1-kai.heng.feng@canonical.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
arch/x86/kernel/early-quirks.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/arch/x86/kernel/early-quirks.c b/arch/x86/kernel/early-quirks.c
index 4cba91e..606711f 100644
--- a/arch/x86/kernel/early-quirks.c
+++ b/arch/x86/kernel/early-quirks.c
@@ -710,6 +710,8 @@ static struct chipset early_qrk[] __initdata = {
*/
{ PCI_VENDOR_ID_INTEL, 0x0f00,
PCI_CLASS_BRIDGE_HOST, PCI_ANY_ID, 0, force_disable_hpet},
+ { PCI_VENDOR_ID_INTEL, 0x3e20,
+ PCI_CLASS_BRIDGE_HOST, PCI_ANY_ID, 0, force_disable_hpet},
{ PCI_VENDOR_ID_INTEL, 0x3ec4,
PCI_CLASS_BRIDGE_HOST, PCI_ANY_ID, 0, force_disable_hpet},
{ PCI_VENDOR_ID_BROADCOM, 0x4331,
^ permalink raw reply related [flat|nested] 4+ messages in thread
end of thread, other threads:[~2019-11-29 11:24 UTC | newest]
Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed)
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2019-11-29 6:23 [PATCH 1/2] x86/intel: Disable HPET on Intel Coffee Lake H platforms Kai-Heng Feng
2019-11-29 6:23 ` [PATCH 2/2] x86/intel: Disable HPET on Intel Ice Lake platforms Kai-Heng Feng
2019-11-29 11:23 ` [tip: timers/urgent] " tip-bot2 for Kai-Heng Feng
2019-11-29 11:23 ` [tip: timers/urgent] x86/intel: Disable HPET on Intel Coffee Lake H platforms tip-bot2 for Kai-Heng Feng
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