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 v2 2/7] powerpc: Use TIDR CPU feature to control TIDR allocation Date: Wed, 18 Apr 2018 11:08:05 +1000 [thread overview] Message-ID: <20180418010810.30937-3-alastair@au1.ibm.com> (raw) In-Reply-To: <20180418010810.30937-1-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 | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/arch/powerpc/kernel/process.c b/arch/powerpc/kernel/process.c index 1237f13fed51..3b00da47699b 100644 --- a/arch/powerpc/kernel/process.c +++ b/arch/powerpc/kernel/process.c @@ -1154,7 +1154,7 @@ static inline void restore_sprs(struct thread_struct *old_thread, mtspr(SPRN_TAR, new_thread->tar); } - if (cpu_has_feature(CPU_FTR_ARCH_300) && + if (cpu_has_feature(CPU_FTR_P9_TIDR) && old_thread->tidr != new_thread->tidr) mtspr(SPRN_TIDR, new_thread->tidr); #endif @@ -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
WARNING: multiple messages have this Message-ID (diff)
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 v2 2/7] powerpc: Use TIDR CPU feature to control TIDR allocation Date: Wed, 18 Apr 2018 11:08:05 +1000 [thread overview] Message-ID: <20180418010810.30937-3-alastair@au1.ibm.com> (raw) In-Reply-To: <20180418010810.30937-1-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 | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/arch/powerpc/kernel/process.c b/arch/powerpc/kernel/process.c index 1237f13fed51..3b00da47699b 100644 --- a/arch/powerpc/kernel/process.c +++ b/arch/powerpc/kernel/process.c @@ -1154,7 +1154,7 @@ static inline void restore_sprs(struct thread_struct *old_thread, mtspr(SPRN_TAR, new_thread->tar); } - if (cpu_has_feature(CPU_FTR_ARCH_300) && + if (cpu_has_feature(CPU_FTR_P9_TIDR) && old_thread->tidr != new_thread->tidr) mtspr(SPRN_TIDR, new_thread->tidr); #endif @@ -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 -- To unsubscribe from this list: send the line "unsubscribe linux-doc" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
next prev parent reply other threads:[~2018-04-18 1:08 UTC|newest] Thread overview: 119+ 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 ` Alastair D'Silva 2018-04-17 2:09 ` [PATCH 1/7] powerpc: Add TIDR CPU feature for Power9 Alastair D'Silva 2018-04-17 2:09 ` Alastair D'Silva 2018-04-17 4:09 ` Andrew Donnellan 2018-04-17 4:09 ` Andrew Donnellan 2018-04-17 2:09 ` [PATCH 2/7] powerpc: Use TIDR CPU feature to control TIDR allocation Alastair D'Silva 2018-04-17 2:09 ` Alastair D'Silva 2018-04-17 4:21 ` Andrew Donnellan 2018-04-17 4:21 ` Andrew Donnellan 2018-04-17 5:31 ` Alastair D'Silva 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 ` 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 2:09 ` Alastair D'Silva 2018-04-17 5:37 ` Andrew Donnellan 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 ` 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 ` Alastair D'Silva 2018-04-17 2:09 ` [PATCH 7/7] ocxl: Document new OCXL IOCTLs Alastair D'Silva 2018-04-17 2:09 ` Alastair D'Silva 2018-04-17 3:45 ` Andrew Donnellan 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 ` 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 1:08 ` Alastair D'Silva 2018-04-18 7:03 ` Andrew Donnellan 2018-04-18 7:03 ` Andrew Donnellan 2018-05-07 17:17 ` Frederic Barrat 2018-05-07 17:17 ` Frederic Barrat 2018-05-08 3:13 ` Alastair D'Silva 2018-05-08 3:13 ` Alastair D'Silva 2018-04-18 1:08 ` Alastair D'Silva [this message] 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 2018-04-18 7:13 ` Andrew Donnellan 2018-05-07 17:19 ` Frederic Barrat 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 2018-04-18 1:08 ` Alastair D'Silva 2018-04-20 8:43 ` Andrew Donnellan 2018-04-20 8:43 ` Andrew Donnellan 2018-04-24 21:12 ` Sukadev Bhattiprolu 2018-04-24 21:12 ` Sukadev Bhattiprolu 2018-04-26 9:25 ` Andrew Donnellan 2018-04-26 9:25 ` Andrew Donnellan 2018-05-07 17:37 ` Frederic Barrat 2018-05-07 17:37 ` Frederic Barrat 2018-05-08 0:40 ` Alastair D'Silva 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 2018-04-18 1:08 ` Alastair D'Silva 2018-05-07 17:38 ` Frederic Barrat 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 2018-04-18 1:08 ` Alastair D'Silva 2018-04-23 7:16 ` Andrew Donnellan 2018-04-23 7:16 ` Andrew Donnellan 2018-05-07 18:08 ` Frederic Barrat 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 2018-04-18 1:08 ` Alastair D'Silva 2018-04-20 7:25 ` Andrew Donnellan 2018-04-20 7:25 ` Andrew Donnellan 2018-05-07 18:14 ` Frederic Barrat 2018-05-07 18:14 ` Frederic Barrat 2018-05-08 0:41 ` Alastair D'Silva 2018-05-08 0:41 ` Alastair D'Silva 2018-05-08 3:50 ` Nicholas Piggin 2018-05-08 3:50 ` Nicholas Piggin 2018-05-08 3:54 ` Alastair D'Silva 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 1:08 ` Alastair D'Silva 2018-04-18 7:29 ` Andrew Donnellan 2018-04-18 7:29 ` Andrew Donnellan 2018-05-07 18:15 ` Frederic Barrat 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 ` 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 ` 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 ` 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 ` 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 ` 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 2018-05-09 0:42 ` Alastair D'Silva 2018-05-11 5:01 ` Michael Ellerman 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 ` Alastair D'Silva 2018-05-09 0:42 ` [PATCH v3 7/7] ocxl: Document new OCXL IOCTLs Alastair D'Silva 2018-05-09 0:42 ` 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 5:34 ` 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 ` 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 ` 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 ` 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 ` 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 ` 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 2018-05-09 5:35 ` Alastair D'Silva 2018-05-11 5:20 ` Michael Ellerman 2018-05-11 5:20 ` Michael Ellerman 2018-05-11 5:20 ` Michael Ellerman 2018-05-09 5:35 ` [PATCH v4 7/7] ocxl: Document new OCXL IOCTLs Alastair D'Silva 2018-05-09 5:35 ` Alastair D'Silva
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