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From: Christophe Leroy <christophe.leroy@c-s.fr>
To: Benjamin Herrenschmidt <benh@kernel.crashing.org>,
	Paul Mackerras <paulus@samba.org>,
	Michael Ellerman <mpe@ellerman.id.au>,
	mikey@neuling.org
Cc: linux-kernel@vger.kernel.org, linuxppc-dev@lists.ozlabs.org
Subject: [PATCH v3 12/13] powerpc/ptrace: create ppc_gethwdinfo()
Date: Wed, 26 Feb 2020 11:54:02 +0000 (UTC)	[thread overview]
Message-ID: <14bfeb22402a324826c79422931c34617173c885.1582717645.git.christophe.leroy@c-s.fr> (raw)
In-Reply-To: <cover.1582717645.git.christophe.leroy@c-s.fr>

Create ippc_gethwdinfo() to handle PPC_PTRACE_GETHWDBGINFO and
reduce ifdef mess

Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
---
 arch/powerpc/kernel/ptrace/ptrace-adv.c   | 15 +++++++++++
 arch/powerpc/kernel/ptrace/ptrace-decl.h  |  1 +
 arch/powerpc/kernel/ptrace/ptrace-noadv.c | 20 ++++++++++++++
 arch/powerpc/kernel/ptrace/ptrace.c       | 32 +----------------------
 4 files changed, 37 insertions(+), 31 deletions(-)

diff --git a/arch/powerpc/kernel/ptrace/ptrace-adv.c b/arch/powerpc/kernel/ptrace/ptrace-adv.c
index c71bedd54a8b..3990c01ef8cf 100644
--- a/arch/powerpc/kernel/ptrace/ptrace-adv.c
+++ b/arch/powerpc/kernel/ptrace/ptrace-adv.c
@@ -56,6 +56,21 @@ void user_disable_single_step(struct task_struct *task)
 	clear_tsk_thread_flag(task, TIF_SINGLESTEP);
 }
 
+void ppc_gethwdinfo(struct ppc_debug_info *dbginfo)
+{
+	dbginfo->version = 1;
+	dbginfo->num_instruction_bps = CONFIG_PPC_ADV_DEBUG_IACS;
+	dbginfo->num_data_bps = CONFIG_PPC_ADV_DEBUG_DACS;
+	dbginfo->num_condition_regs = CONFIG_PPC_ADV_DEBUG_DVCS;
+	dbginfo->data_bp_alignment = 4;
+	dbginfo->sizeof_condition = 4;
+	dbginfo->features = PPC_DEBUG_FEATURE_INSN_BP_RANGE |
+			    PPC_DEBUG_FEATURE_INSN_BP_MASK;
+	if (IS_ENABLED(CONFIG_PPC_ADV_DEBUG_DAC_RANGE))
+		dbginfo->features |= PPC_DEBUG_FEATURE_DATA_BP_RANGE |
+				     PPC_DEBUG_FEATURE_DATA_BP_MASK;
+}
+
 int ptrace_get_debugreg(struct task_struct *child, unsigned long addr,
 			unsigned long __user *datalp)
 {
diff --git a/arch/powerpc/kernel/ptrace/ptrace-decl.h b/arch/powerpc/kernel/ptrace/ptrace-decl.h
index 4b4b6a1d508a..3c8a81999292 100644
--- a/arch/powerpc/kernel/ptrace/ptrace-decl.h
+++ b/arch/powerpc/kernel/ptrace/ptrace-decl.h
@@ -176,6 +176,7 @@ int tm_cgpr32_set(struct task_struct *target, const struct user_regset *regset,
 extern const struct user_regset_view user_ppc_native_view;
 
 /* ptrace-(no)adv */
+void ppc_gethwdinfo(struct ppc_debug_info *dbginfo);
 int ptrace_get_debugreg(struct task_struct *child, unsigned long addr,
 			unsigned long __user *datalp);
 int ptrace_set_debugreg(struct task_struct *task, unsigned long addr, unsigned long data);
diff --git a/arch/powerpc/kernel/ptrace/ptrace-noadv.c b/arch/powerpc/kernel/ptrace/ptrace-noadv.c
index 9c1ef9c2ffd4..8a616d87fffb 100644
--- a/arch/powerpc/kernel/ptrace/ptrace-noadv.c
+++ b/arch/powerpc/kernel/ptrace/ptrace-noadv.c
@@ -39,6 +39,26 @@ void user_disable_single_step(struct task_struct *task)
 	clear_tsk_thread_flag(task, TIF_SINGLESTEP);
 }
 
+void ppc_gethwdinfo(struct ppc_debug_info *dbginfo)
+{
+	dbginfo->version = 1;
+	dbginfo->num_instruction_bps = 0;
+	if (ppc_breakpoint_available())
+		dbginfo->num_data_bps = 1;
+	else
+		dbginfo->num_data_bps = 0;
+	dbginfo->num_condition_regs = 0;
+	dbginfo->data_bp_alignment = sizeof(long);
+	dbginfo->sizeof_condition = 0;
+	if (IS_ENABLED(CONFIG_HAVE_HW_BREAKPOINT)) {
+		dbginfo->features = PPC_DEBUG_FEATURE_DATA_BP_RANGE;
+		if (dawr_enabled())
+			dbginfo->features |= PPC_DEBUG_FEATURE_DATA_BP_DAWR;
+	} else {
+		dbginfo->features = 0;
+	}
+}
+
 int ptrace_get_debugreg(struct task_struct *child, unsigned long addr,
 			unsigned long __user *datalp)
 {
diff --git a/arch/powerpc/kernel/ptrace/ptrace.c b/arch/powerpc/kernel/ptrace/ptrace.c
index 0242b93e8c55..269749e2756c 100644
--- a/arch/powerpc/kernel/ptrace/ptrace.c
+++ b/arch/powerpc/kernel/ptrace/ptrace.c
@@ -137,37 +137,7 @@ long arch_ptrace(struct task_struct *child, long request,
 	case PPC_PTRACE_GETHWDBGINFO: {
 		struct ppc_debug_info dbginfo;
 
-		dbginfo.version = 1;
-#ifdef CONFIG_PPC_ADV_DEBUG_REGS
-		dbginfo.num_instruction_bps = CONFIG_PPC_ADV_DEBUG_IACS;
-		dbginfo.num_data_bps = CONFIG_PPC_ADV_DEBUG_DACS;
-		dbginfo.num_condition_regs = CONFIG_PPC_ADV_DEBUG_DVCS;
-		dbginfo.data_bp_alignment = 4;
-		dbginfo.sizeof_condition = 4;
-		dbginfo.features = PPC_DEBUG_FEATURE_INSN_BP_RANGE |
-				   PPC_DEBUG_FEATURE_INSN_BP_MASK;
-#ifdef CONFIG_PPC_ADV_DEBUG_DAC_RANGE
-		dbginfo.features |=
-				   PPC_DEBUG_FEATURE_DATA_BP_RANGE |
-				   PPC_DEBUG_FEATURE_DATA_BP_MASK;
-#endif
-#else /* !CONFIG_PPC_ADV_DEBUG_REGS */
-		dbginfo.num_instruction_bps = 0;
-		if (ppc_breakpoint_available())
-			dbginfo.num_data_bps = 1;
-		else
-			dbginfo.num_data_bps = 0;
-		dbginfo.num_condition_regs = 0;
-		dbginfo.data_bp_alignment = sizeof(long);
-		dbginfo.sizeof_condition = 0;
-#ifdef CONFIG_HAVE_HW_BREAKPOINT
-		dbginfo.features = PPC_DEBUG_FEATURE_DATA_BP_RANGE;
-		if (dawr_enabled())
-			dbginfo.features |= PPC_DEBUG_FEATURE_DATA_BP_DAWR;
-#else
-		dbginfo.features = 0;
-#endif /* CONFIG_HAVE_HW_BREAKPOINT */
-#endif /* CONFIG_PPC_ADV_DEBUG_REGS */
+		ppc_gethwdinfo(&dbginfo);
 
 		if (copy_to_user(datavp, &dbginfo,
 				 sizeof(struct ppc_debug_info)))
-- 
2.25.0


WARNING: multiple messages have this Message-ID (diff)
From: Christophe Leroy <christophe.leroy@c-s.fr>
To: Benjamin Herrenschmidt <benh@kernel.crashing.org>,
	Paul Mackerras <paulus@samba.org>,
	Michael Ellerman <mpe@ellerman.id.au>,
	 mikey@neuling.org
Cc: linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org
Subject: [PATCH v3 12/13] powerpc/ptrace: create ppc_gethwdinfo()
Date: Wed, 26 Feb 2020 11:54:02 +0000 (UTC)	[thread overview]
Message-ID: <14bfeb22402a324826c79422931c34617173c885.1582717645.git.christophe.leroy@c-s.fr> (raw)
In-Reply-To: <cover.1582717645.git.christophe.leroy@c-s.fr>

Create ippc_gethwdinfo() to handle PPC_PTRACE_GETHWDBGINFO and
reduce ifdef mess

Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
---
 arch/powerpc/kernel/ptrace/ptrace-adv.c   | 15 +++++++++++
 arch/powerpc/kernel/ptrace/ptrace-decl.h  |  1 +
 arch/powerpc/kernel/ptrace/ptrace-noadv.c | 20 ++++++++++++++
 arch/powerpc/kernel/ptrace/ptrace.c       | 32 +----------------------
 4 files changed, 37 insertions(+), 31 deletions(-)

diff --git a/arch/powerpc/kernel/ptrace/ptrace-adv.c b/arch/powerpc/kernel/ptrace/ptrace-adv.c
index c71bedd54a8b..3990c01ef8cf 100644
--- a/arch/powerpc/kernel/ptrace/ptrace-adv.c
+++ b/arch/powerpc/kernel/ptrace/ptrace-adv.c
@@ -56,6 +56,21 @@ void user_disable_single_step(struct task_struct *task)
 	clear_tsk_thread_flag(task, TIF_SINGLESTEP);
 }
 
+void ppc_gethwdinfo(struct ppc_debug_info *dbginfo)
+{
+	dbginfo->version = 1;
+	dbginfo->num_instruction_bps = CONFIG_PPC_ADV_DEBUG_IACS;
+	dbginfo->num_data_bps = CONFIG_PPC_ADV_DEBUG_DACS;
+	dbginfo->num_condition_regs = CONFIG_PPC_ADV_DEBUG_DVCS;
+	dbginfo->data_bp_alignment = 4;
+	dbginfo->sizeof_condition = 4;
+	dbginfo->features = PPC_DEBUG_FEATURE_INSN_BP_RANGE |
+			    PPC_DEBUG_FEATURE_INSN_BP_MASK;
+	if (IS_ENABLED(CONFIG_PPC_ADV_DEBUG_DAC_RANGE))
+		dbginfo->features |= PPC_DEBUG_FEATURE_DATA_BP_RANGE |
+				     PPC_DEBUG_FEATURE_DATA_BP_MASK;
+}
+
 int ptrace_get_debugreg(struct task_struct *child, unsigned long addr,
 			unsigned long __user *datalp)
 {
diff --git a/arch/powerpc/kernel/ptrace/ptrace-decl.h b/arch/powerpc/kernel/ptrace/ptrace-decl.h
index 4b4b6a1d508a..3c8a81999292 100644
--- a/arch/powerpc/kernel/ptrace/ptrace-decl.h
+++ b/arch/powerpc/kernel/ptrace/ptrace-decl.h
@@ -176,6 +176,7 @@ int tm_cgpr32_set(struct task_struct *target, const struct user_regset *regset,
 extern const struct user_regset_view user_ppc_native_view;
 
 /* ptrace-(no)adv */
+void ppc_gethwdinfo(struct ppc_debug_info *dbginfo);
 int ptrace_get_debugreg(struct task_struct *child, unsigned long addr,
 			unsigned long __user *datalp);
 int ptrace_set_debugreg(struct task_struct *task, unsigned long addr, unsigned long data);
diff --git a/arch/powerpc/kernel/ptrace/ptrace-noadv.c b/arch/powerpc/kernel/ptrace/ptrace-noadv.c
index 9c1ef9c2ffd4..8a616d87fffb 100644
--- a/arch/powerpc/kernel/ptrace/ptrace-noadv.c
+++ b/arch/powerpc/kernel/ptrace/ptrace-noadv.c
@@ -39,6 +39,26 @@ void user_disable_single_step(struct task_struct *task)
 	clear_tsk_thread_flag(task, TIF_SINGLESTEP);
 }
 
+void ppc_gethwdinfo(struct ppc_debug_info *dbginfo)
+{
+	dbginfo->version = 1;
+	dbginfo->num_instruction_bps = 0;
+	if (ppc_breakpoint_available())
+		dbginfo->num_data_bps = 1;
+	else
+		dbginfo->num_data_bps = 0;
+	dbginfo->num_condition_regs = 0;
+	dbginfo->data_bp_alignment = sizeof(long);
+	dbginfo->sizeof_condition = 0;
+	if (IS_ENABLED(CONFIG_HAVE_HW_BREAKPOINT)) {
+		dbginfo->features = PPC_DEBUG_FEATURE_DATA_BP_RANGE;
+		if (dawr_enabled())
+			dbginfo->features |= PPC_DEBUG_FEATURE_DATA_BP_DAWR;
+	} else {
+		dbginfo->features = 0;
+	}
+}
+
 int ptrace_get_debugreg(struct task_struct *child, unsigned long addr,
 			unsigned long __user *datalp)
 {
diff --git a/arch/powerpc/kernel/ptrace/ptrace.c b/arch/powerpc/kernel/ptrace/ptrace.c
index 0242b93e8c55..269749e2756c 100644
--- a/arch/powerpc/kernel/ptrace/ptrace.c
+++ b/arch/powerpc/kernel/ptrace/ptrace.c
@@ -137,37 +137,7 @@ long arch_ptrace(struct task_struct *child, long request,
 	case PPC_PTRACE_GETHWDBGINFO: {
 		struct ppc_debug_info dbginfo;
 
-		dbginfo.version = 1;
-#ifdef CONFIG_PPC_ADV_DEBUG_REGS
-		dbginfo.num_instruction_bps = CONFIG_PPC_ADV_DEBUG_IACS;
-		dbginfo.num_data_bps = CONFIG_PPC_ADV_DEBUG_DACS;
-		dbginfo.num_condition_regs = CONFIG_PPC_ADV_DEBUG_DVCS;
-		dbginfo.data_bp_alignment = 4;
-		dbginfo.sizeof_condition = 4;
-		dbginfo.features = PPC_DEBUG_FEATURE_INSN_BP_RANGE |
-				   PPC_DEBUG_FEATURE_INSN_BP_MASK;
-#ifdef CONFIG_PPC_ADV_DEBUG_DAC_RANGE
-		dbginfo.features |=
-				   PPC_DEBUG_FEATURE_DATA_BP_RANGE |
-				   PPC_DEBUG_FEATURE_DATA_BP_MASK;
-#endif
-#else /* !CONFIG_PPC_ADV_DEBUG_REGS */
-		dbginfo.num_instruction_bps = 0;
-		if (ppc_breakpoint_available())
-			dbginfo.num_data_bps = 1;
-		else
-			dbginfo.num_data_bps = 0;
-		dbginfo.num_condition_regs = 0;
-		dbginfo.data_bp_alignment = sizeof(long);
-		dbginfo.sizeof_condition = 0;
-#ifdef CONFIG_HAVE_HW_BREAKPOINT
-		dbginfo.features = PPC_DEBUG_FEATURE_DATA_BP_RANGE;
-		if (dawr_enabled())
-			dbginfo.features |= PPC_DEBUG_FEATURE_DATA_BP_DAWR;
-#else
-		dbginfo.features = 0;
-#endif /* CONFIG_HAVE_HW_BREAKPOINT */
-#endif /* CONFIG_PPC_ADV_DEBUG_REGS */
+		ppc_gethwdinfo(&dbginfo);
 
 		if (copy_to_user(datavp, &dbginfo,
 				 sizeof(struct ppc_debug_info)))
-- 
2.25.0


  parent reply	other threads:[~2020-02-26 11:54 UTC|newest]

Thread overview: 31+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-02-26 11:53 [PATCH v3 00/13] Reduce ifdef mess in ptrace Christophe Leroy
2020-02-26 11:53 ` Christophe Leroy
2020-02-26 11:53 ` [PATCH v3 01/13] powerpc: move ptrace into a subdirectory Christophe Leroy
2020-02-26 11:53   ` Christophe Leroy
2020-02-26 11:53 ` [PATCH v3 02/13] powerpc/ptrace: remove unused header includes Christophe Leroy
2020-02-26 11:53   ` Christophe Leroy
2020-02-26 11:53 ` [PATCH v3 03/13] powerpc/ptrace: drop unnecessary #ifdefs CONFIG_PPC64 Christophe Leroy
2020-02-26 11:53   ` Christophe Leroy
2020-02-26 11:53 ` [PATCH v3 04/13] powerpc/ptrace: drop PARAMETER_SAVE_AREA_OFFSET Christophe Leroy
2020-02-26 11:53   ` Christophe Leroy
2020-02-26 11:53 ` [PATCH v3 05/13] powerpc/ptrace: split out VSX related functions Christophe Leroy
2020-02-26 11:53   ` Christophe Leroy
2020-02-26 11:53 ` [PATCH v3 06/13] powerpc/ptrace: split out ALTIVEC " Christophe Leroy
2020-02-26 11:53   ` Christophe Leroy
2020-02-26 11:53 ` [PATCH v3 07/13] powerpc/ptrace: split out SPE " Christophe Leroy
2020-02-26 11:53   ` Christophe Leroy
2020-02-26 11:53 ` [PATCH v3 08/13] powerpc/ptrace: split out TRANSACTIONAL_MEM " Christophe Leroy
2020-02-26 11:53   ` Christophe Leroy
2020-02-26 11:53 ` [PATCH v3 09/13] powerpc/ptrace: move register viewing functions out of ptrace.c Christophe Leroy
2020-02-26 11:53   ` Christophe Leroy
2020-02-26 11:54 ` [PATCH v3 10/13] powerpc/ptrace: split out ADV_DEBUG_REGS related functions Christophe Leroy
2020-02-26 11:54   ` Christophe Leroy
2020-02-26 19:11   ` kbuild test robot
2020-02-26 19:11     ` kbuild test robot
2020-02-26 19:11     ` kbuild test robot
2020-02-26 11:54 ` [PATCH v3 11/13] powerpc/ptrace: create ptrace_get_debugreg() Christophe Leroy
2020-02-26 11:54   ` Christophe Leroy
2020-02-26 11:54 ` Christophe Leroy [this message]
2020-02-26 11:54   ` [PATCH v3 12/13] powerpc/ptrace: create ppc_gethwdinfo() Christophe Leroy
2020-02-26 11:54 ` [PATCH v3 13/13] powerpc/ptrace: move ptrace_triggered() into hw_breakpoint.c Christophe Leroy
2020-02-26 11:54   ` Christophe Leroy

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