From: "Alastair D'Silva" <alastair@au1.ibm.com>
To: linuxppc-dev@lists.ozlabs.org
Cc: linux-kernel@vger.kernel.org, linux-doc@vger.kernel.org,
mikey@neuling.org, vaibhav@linux.vnet.ibm.com,
aneesh.kumar@linux.vnet.ibm.com, malat@debian.org,
felix@linux.vnet.ibm.com, pombredanne@nexb.com,
sukadev@linux.vnet.ibm.com, npiggin@gmail.com,
gregkh@linuxfoundation.org, arnd@arndb.de,
andrew.donnellan@au1.ibm.com, fbarrat@linux.vnet.ibm.com,
corbet@lwn.net, "Alastair D'Silva" <alastair@d-silva.org>
Subject: [PATCH 2/7] powerpc: Use TIDR CPU feature to control TIDR allocation
Date: Tue, 17 Apr 2018 12:09:45 +1000 [thread overview]
Message-ID: <20180417020950.21446-3-alastair@au1.ibm.com> (raw)
In-Reply-To: <20180417020950.21446-1-alastair@au1.ibm.com>
From: Alastair D'Silva <alastair@d-silva.org>
Switch the use of TIDR on it's CPU feature, rather than assuming it
is available based on architecture.
Signed-off-by: Alastair D'Silva <alastair@d-silva.org>
---
arch/powerpc/kernel/process.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/powerpc/kernel/process.c b/arch/powerpc/kernel/process.c
index 1237f13fed51..a3e0a3e06d5a 100644
--- a/arch/powerpc/kernel/process.c
+++ b/arch/powerpc/kernel/process.c
@@ -1570,7 +1570,7 @@ void clear_thread_tidr(struct task_struct *t)
if (!t->thread.tidr)
return;
- if (!cpu_has_feature(CPU_FTR_ARCH_300)) {
+ if (!cpu_has_feature(CPU_FTR_P9_TIDR)) {
WARN_ON_ONCE(1);
return;
}
@@ -1593,7 +1593,7 @@ int set_thread_tidr(struct task_struct *t)
{
int rc;
- if (!cpu_has_feature(CPU_FTR_ARCH_300))
+ if (!cpu_has_feature(CPU_FTR_P9_TIDR))
return -EINVAL;
if (t != current)
--
2.14.3
next prev parent reply other threads:[~2018-04-17 2:11 UTC|newest]
Thread overview: 59+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-04-17 2:09 [PATCH 0/7] ocxl: Implement Power9 as_notify/wait for OpenCAPI Alastair D'Silva
2018-04-17 2:09 ` [PATCH 1/7] powerpc: Add TIDR CPU feature for Power9 Alastair D'Silva
2018-04-17 4:09 ` Andrew Donnellan
2018-04-17 2:09 ` Alastair D'Silva [this message]
2018-04-17 4:21 ` [PATCH 2/7] powerpc: Use TIDR CPU feature to control TIDR allocation Andrew Donnellan
2018-04-17 5:31 ` Alastair D'Silva
2018-04-17 2:09 ` [PATCH 3/7] powerpc: use task_pid_nr() for TID allocation Alastair D'Silva
2018-04-17 2:09 ` [PATCH 4/7] ocxl: Rename pnv_ocxl_spa_remove_pe to clarify it's action Alastair D'Silva
2018-04-17 5:37 ` Andrew Donnellan
2018-04-17 2:09 ` [PATCH 5/7] ocxl: Expose the thread_id needed for wait on p9 Alastair D'Silva
2018-04-17 2:09 ` [PATCH 6/7] ocxl: Add an IOCTL so userspace knows which platform the kernel requires Alastair D'Silva
2018-04-17 2:09 ` [PATCH 7/7] ocxl: Document new OCXL IOCTLs Alastair D'Silva
2018-04-17 3:45 ` Andrew Donnellan
2018-04-18 1:08 ` [PATCH v2 0/7] ocxl: Implement Power9 as_notify/wait for OpenCAPI Alastair D'Silva
2018-04-18 1:08 ` [PATCH v2 1/7] powerpc: Add TIDR CPU feature for Power9 Alastair D'Silva
2018-04-18 7:03 ` Andrew Donnellan
2018-05-07 17:17 ` Frederic Barrat
2018-05-08 3:13 ` Alastair D'Silva
2018-04-18 1:08 ` [PATCH v2 2/7] powerpc: Use TIDR CPU feature to control TIDR allocation Alastair D'Silva
2018-04-18 7:13 ` Andrew Donnellan
2018-05-07 17:19 ` Frederic Barrat
2018-04-18 1:08 ` [PATCH v2 3/7] powerpc: use task_pid_nr() for TID allocation Alastair D'Silva
2018-04-20 8:43 ` Andrew Donnellan
2018-04-24 21:12 ` Sukadev Bhattiprolu
2018-04-26 9:25 ` Andrew Donnellan
2018-05-07 17:37 ` Frederic Barrat
2018-05-08 0:40 ` Alastair D'Silva
2018-04-18 1:08 ` [PATCH v2 4/7] ocxl: Rename pnv_ocxl_spa_remove_pe to clarify it's action Alastair D'Silva
2018-05-07 17:38 ` Frederic Barrat
2018-04-18 1:08 ` [PATCH v2 5/7] ocxl: Expose the thread_id needed for wait on p9 Alastair D'Silva
2018-04-23 7:16 ` Andrew Donnellan
2018-05-07 18:08 ` Frederic Barrat
2018-04-18 1:08 ` [PATCH v2 6/7] ocxl: Add an IOCTL so userspace knows what CPU features are available Alastair D'Silva
2018-04-20 7:25 ` Andrew Donnellan
2018-05-07 18:14 ` Frederic Barrat
2018-05-08 0:41 ` Alastair D'Silva
2018-05-08 3:50 ` Nicholas Piggin
2018-05-08 3:54 ` Alastair D'Silva
2018-04-18 1:08 ` [PATCH v2 7/7] ocxl: Document new OCXL IOCTLs Alastair D'Silva
2018-04-18 7:29 ` Andrew Donnellan
2018-05-07 18:15 ` Frederic Barrat
2018-05-09 0:42 ` [PATCH v3 0/7] ocxl: Implement Power9 as_notify/wait for OpenCAPI Alastair D'Silva
2018-05-09 0:42 ` [PATCH v3 1/7] powerpc: Add TIDR CPU feature for POWER9 Alastair D'Silva
2018-05-09 0:42 ` [PATCH v3 2/7] powerpc: Use TIDR CPU feature to control TIDR allocation Alastair D'Silva
2018-05-09 0:42 ` [PATCH v3 3/7] powerpc: use task_pid_nr() for TID allocation Alastair D'Silva
2018-05-09 0:42 ` [PATCH v3 4/7] ocxl: Rename pnv_ocxl_spa_remove_pe to clarify it's action Alastair D'Silva
2018-05-09 0:42 ` [PATCH v3 5/7] ocxl: Expose the thread_id needed for wait on POWER9 Alastair D'Silva
2018-05-11 5:01 ` Michael Ellerman
2018-05-09 0:42 ` [PATCH v3 6/7] ocxl: Add an IOCTL so userspace knows what OCXL features are available Alastair D'Silva
2018-05-09 0:42 ` [PATCH v3 7/7] ocxl: Document new OCXL IOCTLs Alastair D'Silva
2018-05-09 5:34 ` [PATCH v4 0/7] ocxl: Implement Power9 as_notify/wait for OpenCAPI Alastair D'Silva
2018-05-09 5:35 ` [PATCH v4 1/7] powerpc: Add TIDR CPU feature for POWER9 Alastair D'Silva
2018-05-09 5:35 ` [PATCH v4 2/7] powerpc: Use TIDR CPU feature to control TIDR allocation Alastair D'Silva
2018-05-09 5:35 ` [PATCH v4 3/7] powerpc: use task_pid_nr() for TID allocation Alastair D'Silva
2018-05-09 5:35 ` [PATCH v4 4/7] ocxl: Rename pnv_ocxl_spa_remove_pe to clarify it's action Alastair D'Silva
2018-05-09 5:35 ` [PATCH v4 5/7] ocxl: Expose the thread_id needed for wait on POWER9 Alastair D'Silva
2018-05-09 5:35 ` [PATCH v4 6/7] ocxl: Add an IOCTL so userspace knows what OCXL features are available Alastair D'Silva
2018-05-11 5:20 ` Michael Ellerman
2018-05-09 5:35 ` [PATCH v4 7/7] ocxl: Document new OCXL IOCTLs Alastair D'Silva
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