From: Ravi Bangoria <ravi.bangoria@linux.ibm.com>
To: mpe@ellerman.id.au, mikey@neuling.org
Cc: apopple@linux.ibm.com, paulus@samba.org, npiggin@gmail.com,
christophe.leroy@c-s.fr, naveen.n.rao@linux.vnet.ibm.com,
peterz@infradead.org, jolsa@kernel.org, oleg@redhat.com,
fweisbec@gmail.com, mingo@kernel.org,
linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org,
Ravi Bangoria <ravi.bangoria@linux.ibm.com>
Subject: [PATCH 08/15] powerpc/watchpoint: Disable all available watchpoints when !dawr_force_enable
Date: Mon, 9 Mar 2020 14:27:59 +0530 [thread overview]
Message-ID: <20200309085806.155823-9-ravi.bangoria@linux.ibm.com> (raw)
In-Reply-To: <20200309085806.155823-1-ravi.bangoria@linux.ibm.com>
Instead of disabling only first watchpoint, disable all available
watchpoints while clearing dawr_force_enable.
Signed-off-by: Ravi Bangoria <ravi.bangoria@linux.ibm.com>
---
arch/powerpc/kernel/dawr.c | 10 +++++++---
1 file changed, 7 insertions(+), 3 deletions(-)
diff --git a/arch/powerpc/kernel/dawr.c b/arch/powerpc/kernel/dawr.c
index 311e51ee09f4..5c882f07ac7d 100644
--- a/arch/powerpc/kernel/dawr.c
+++ b/arch/powerpc/kernel/dawr.c
@@ -50,9 +50,13 @@ int set_dawr(struct arch_hw_breakpoint *brk, int nr)
return 0;
}
-static void set_dawr_cb(void *info)
+static void disable_dawrs(void *info)
{
- set_dawr(info, 0);
+ struct arch_hw_breakpoint null_brk = {0};
+ int i;
+
+ for (i = 0; i < nr_wp_slots(); i++)
+ set_dawr(&null_brk, i);
}
static ssize_t dawr_write_file_bool(struct file *file,
@@ -74,7 +78,7 @@ static ssize_t dawr_write_file_bool(struct file *file,
/* If we are clearing, make sure all CPUs have the DAWR cleared */
if (!dawr_force_enable)
- smp_call_function(set_dawr_cb, &null_brk, 0);
+ smp_call_function(disable_dawrs, NULL, 0);
return rc;
}
--
2.21.1
next prev parent reply other threads:[~2020-03-09 8:59 UTC|newest]
Thread overview: 54+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-03-09 8:57 [PATCH 00/15] powerpc/watchpoint: Preparation for more than one watchpoint Ravi Bangoria
2020-03-09 8:57 ` [PATCH 01/15] powerpc/watchpoint: Rename current DAWR macros Ravi Bangoria
2020-03-17 10:14 ` Christophe Leroy
2020-03-18 12:40 ` Ravi Bangoria
2020-03-09 8:57 ` [PATCH 02/15] powerpc/watchpoint: Add SPRN macros for second DAWR Ravi Bangoria
2020-03-17 10:16 ` Christophe Leroy
2020-03-18 18:30 ` Segher Boessenkool
2020-03-09 8:57 ` [PATCH 03/15] powerpc/watchpoint: Introduce function to get nr watchpoints dynamically Ravi Bangoria
2020-03-17 10:21 ` Christophe Leroy
2020-03-18 5:50 ` Ravi Bangoria
2020-03-09 8:57 ` [PATCH 04/15] powerpc/watchpoint/ptrace: Return actual num of available watchpoints Ravi Bangoria
2020-03-09 8:57 ` [PATCH 05/15] powerpc/watchpoint: Provide DAWR number to set_dawr Ravi Bangoria
2020-03-17 10:28 ` Christophe Leroy
2020-03-18 6:18 ` Ravi Bangoria
2020-03-09 8:57 ` [PATCH 06/15] powerpc/watchpoint: Provide DAWR number to __set_breakpoint Ravi Bangoria
2020-03-09 8:57 ` [PATCH 07/15] powerpc/watchpoint: Get watchpoint count dynamically while disabling them Ravi Bangoria
2020-03-17 10:32 ` Christophe Leroy
2020-03-18 6:57 ` Ravi Bangoria
2020-03-26 3:32 ` Ravi Bangoria
2020-03-09 8:57 ` Ravi Bangoria [this message]
2020-03-17 10:35 ` [PATCH 08/15] powerpc/watchpoint: Disable all available watchpoints when !dawr_force_enable Christophe Leroy
2020-03-18 7:32 ` Ravi Bangoria
2020-03-09 8:58 ` [PATCH 09/15] powerpc/watchpoint: Convert thread_struct->hw_brk to an array Ravi Bangoria
2020-03-17 10:37 ` Christophe Leroy
2020-03-18 8:36 ` Ravi Bangoria
2020-03-18 8:56 ` Christophe Leroy
2020-03-18 9:22 ` Ravi Bangoria
2020-03-09 8:58 ` [PATCH 10/15] powerpc/watchpoint: Use loop for thread_struct->ptrace_bps Ravi Bangoria
2020-03-17 10:48 ` Christophe Leroy
2020-03-18 9:43 ` Ravi Bangoria
2020-03-09 8:58 ` [PATCH 11/15] powerpc/watchpoint: Introduce is_ptrace_bp() function Ravi Bangoria
2020-03-17 10:49 ` Christophe Leroy
2020-03-09 8:58 ` [PATCH 12/15] powerpc/watchpoint: Prepare handler to handle more than one watcnhpoint Ravi Bangoria
2020-03-17 10:59 ` Christophe Leroy
2020-03-18 11:35 ` Michael Ellerman
2020-03-18 11:44 ` Christophe Leroy
2020-03-18 21:27 ` Segher Boessenkool
2020-03-18 23:36 ` Michael Ellerman
2020-03-18 12:14 ` Ravi Bangoria
2020-03-09 8:58 ` [PATCH 13/15] powerpc/watchpoint: Don't allow concurrent perf and ptrace events Ravi Bangoria
2020-03-17 11:08 ` Christophe Leroy
2020-03-18 12:35 ` Ravi Bangoria
2020-03-09 8:58 ` [PATCH 14/15] powerpc/watchpoint/xmon: Don't allow breakpoint overwriting Ravi Bangoria
2020-03-17 11:10 ` Christophe Leroy
2020-03-18 12:37 ` Ravi Bangoria
2020-03-18 13:31 ` Christophe Leroy
2020-03-09 8:58 ` [PATCH 15/15] powerpc/watchpoint/xmon: Support 2nd dawr Ravi Bangoria
2020-03-17 11:14 ` Christophe Leroy
2020-03-18 12:39 ` Ravi Bangoria
2020-03-16 15:05 ` [PATCH 00/15] powerpc/watchpoint: Preparation for more than one watchpoint Christophe Leroy
2020-03-16 18:43 ` Segher Boessenkool
2020-03-17 5:56 ` Christophe Leroy
2020-03-18 12:52 ` Ravi Bangoria
2020-03-23 13:37 ` Ravi Bangoria
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