[PATCH] PCI: move early dump functionality from x86 arch into the common code

[PATCH] PCI: move early dump functionality from x86 arch into the common code

[Sinan Kaya]

Move early dump functionality into common code so that it is available for
all archtiectures. No need to carry arch specific reads around as the read
hooks are already initialized by the time pci_setup_device() is getting
called during scan.

Signed-off-by: Sinan Kaya <okaya@codeaurora.org>
---
 Documentation/admin-guide/kernel-parameters.txt |  2 +-
 arch/x86/include/asm/pci-direct.h               |  5 ---
 arch/x86/kernel/setup.c                         |  5 ---
 arch/x86/pci/common.c                           |  4 --
 arch/x86/pci/early.c                            | 50 -------------------------
 drivers/pci/pci.c                               |  4 ++
 drivers/pci/pci.h                               |  2 +-
 drivers/pci/probe.c                             | 19 ++++++++++
 8 files changed, 25 insertions(+), 66 deletions(-)

diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt
index c247612..4459270 100644
--- a/Documentation/admin-guide/kernel-parameters.txt
+++ b/Documentation/admin-guide/kernel-parameters.txt
@@ -2986,7 +2986,7 @@
 			See also Documentation/blockdev/paride.txt.
 
 	pci=option[,option...]	[PCI] various PCI subsystem options:
-		earlydump	[X86] dump PCI config space before the kernel
+		earlydump	dump PCI config space before the kernel
 				changes anything
 		off		[X86] don't probe for the PCI bus
 		bios		[X86-32] force use of PCI BIOS, don't access
diff --git a/arch/x86/include/asm/pci-direct.h b/arch/x86/include/asm/pci-direct.h
index e1084f7..e5e2129 100644
--- a/arch/x86/include/asm/pci-direct.h
+++ b/arch/x86/include/asm/pci-direct.h
@@ -14,9 +14,4 @@ extern void write_pci_config(u8 bus, u8 slot, u8 func, u8 offset, u32 val);
 extern void write_pci_config_byte(u8 bus, u8 slot, u8 func, u8 offset, u8 val);
 extern void write_pci_config_16(u8 bus, u8 slot, u8 func, u8 offset, u16 val);
 
-extern int early_pci_allowed(void);
-
-extern unsigned int pci_early_dump_regs;
-extern void early_dump_pci_device(u8 bus, u8 slot, u8 func);
-extern void early_dump_pci_devices(void);
 #endif /* _ASM_X86_PCI_DIRECT_H */
diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c
index 2f86d88..480f250 100644
--- a/arch/x86/kernel/setup.c
+++ b/arch/x86/kernel/setup.c
@@ -991,11 +991,6 @@ void __init setup_arch(char **cmdline_p)
 		setup_clear_cpu_cap(X86_FEATURE_APIC);
 	}
 
-#ifdef CONFIG_PCI
-	if (pci_early_dump_regs)
-		early_dump_pci_devices();
-#endif
-
 	e820__reserve_setup_data();
 	e820__finish_early_params();
 
diff --git a/arch/x86/pci/common.c b/arch/x86/pci/common.c
index 563049c..d4ec117 100644
--- a/arch/x86/pci/common.c
+++ b/arch/x86/pci/common.c
@@ -22,7 +22,6 @@
 unsigned int pci_probe = PCI_PROBE_BIOS | PCI_PROBE_CONF1 | PCI_PROBE_CONF2 |
 				PCI_PROBE_MMCONF;
 
-unsigned int pci_early_dump_regs;
 static int pci_bf_sort;
 int pci_routeirq;
 int noioapicquirk;
@@ -599,9 +598,6 @@ char *__init pcibios_setup(char *str)
 		pci_probe |= PCI_BIG_ROOT_WINDOW;
 		return NULL;
 #endif
-	} else if (!strcmp(str, "earlydump")) {
-		pci_early_dump_regs = 1;
-		return NULL;
 	} else if (!strcmp(str, "routeirq")) {
 		pci_routeirq = 1;
 		return NULL;
diff --git a/arch/x86/pci/early.c b/arch/x86/pci/early.c
index e5f753c..e20d449 100644
--- a/arch/x86/pci/early.c
+++ b/arch/x86/pci/early.c
@@ -51,53 +51,3 @@ void write_pci_config_16(u8 bus, u8 slot, u8 func, u8 offset, u16 val)
 	outw(val, 0xcfc + (offset&2));
 }
 
-int early_pci_allowed(void)
-{
-	return (pci_probe & (PCI_PROBE_CONF1|PCI_PROBE_NOEARLY)) ==
-			PCI_PROBE_CONF1;
-}
-
-void early_dump_pci_device(u8 bus, u8 slot, u8 func)
-{
-	u32 value[256 / 4];
-	int i;
-
-	pr_info("pci 0000:%02x:%02x.%d config space:\n", bus, slot, func);
-
-	for (i = 0; i < 256; i += 4)
-		value[i / 4] = read_pci_config(bus, slot, func, i);
-
-	print_hex_dump(KERN_INFO, "", DUMP_PREFIX_OFFSET, 16, 1, value, 256, false);
-}
-
-void early_dump_pci_devices(void)
-{
-	unsigned bus, slot, func;
-
-	if (!early_pci_allowed())
-		return;
-
-	for (bus = 0; bus < 256; bus++) {
-		for (slot = 0; slot < 32; slot++) {
-			for (func = 0; func < 8; func++) {
-				u32 class;
-				u8 type;
-
-				class = read_pci_config(bus, slot, func,
-							PCI_CLASS_REVISION);
-				if (class == 0xffffffff)
-					continue;
-
-				early_dump_pci_device(bus, slot, func);
-
-				if (func == 0) {
-					type = read_pci_config_byte(bus, slot,
-								    func,
-							       PCI_HEADER_TYPE);
-					if (!(type & 0x80))
-						break;
-				}
-			}
-		}
-	}
-}
diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c
index 7c03701..ae5a2ae 100644
--- a/drivers/pci/pci.c
+++ b/drivers/pci/pci.c
@@ -115,6 +115,8 @@ static bool pcie_ari_disabled;
 /* If set, the PCIe ATS capability will not be used. */
 static bool pcie_ats_disabled;
 
+bool pci_early_dump;
+
 bool pci_ats_disabled(void)
 {
 	return pcie_ats_disabled;
@@ -5848,6 +5850,8 @@ static int __init pci_setup(char *str)
 				pcie_ats_disabled = true;
 			} else if (!strcmp(str, "noaer")) {
 				pci_no_aer();
+			} else if (!strcmp(str, "earlydump")) {
+				pci_early_dump = true;
 			} else if (!strncmp(str, "realloc=", 8)) {
 				pci_realloc_get_opt(str + 8);
 			} else if (!strncmp(str, "realloc", 7)) {
diff --git a/drivers/pci/pci.h b/drivers/pci/pci.h
index c358e7a0..9c66b7d 100644
--- a/drivers/pci/pci.h
+++ b/drivers/pci/pci.h
@@ -7,7 +7,7 @@
 #define PCI_VSEC_ID_INTEL_TBT	0x1234	/* Thunderbolt */
 
 extern const unsigned char pcie_link_speed[];
-
+extern bool pci_early_dump;
 bool pcie_cap_has_lnkctl(const struct pci_dev *dev);
 
 /* Functions internal to the PCI core code */
diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c
index 3840207..b1f068d 100644
--- a/drivers/pci/probe.c
+++ b/drivers/pci/probe.c
@@ -1549,6 +1549,22 @@ static int pci_intx_mask_broken(struct pci_dev *dev)
 	return 0;
 }
 
+static void early_dump_pci_device(struct pci_dev *pdev)
+{
+	u32 value[256 / 4];
+	int i;
+
+	dev_info(&pdev->dev, "pci 0000:%02x:%02x.%d config space:\n",
+		 pdev->bus->number, PCI_SLOT(pdev->devfn),
+		 PCI_FUNC(pdev->devfn));
+
+	for (i = 0; i < 256; i += 4)
+		pci_read_config_dword(pdev, i, &value[i / 4]);
+
+	print_hex_dump(KERN_INFO, "", DUMP_PREFIX_OFFSET, 16, 1, value,
+		       256, false);
+}
+
 /**
  * pci_setup_device - Fill in class and map information of a device
  * @dev: the device structure to fill
@@ -1598,6 +1614,9 @@ int pci_setup_device(struct pci_dev *dev)
 	pci_printk(KERN_DEBUG, dev, "[%04x:%04x] type %02x class %#08x\n",
 		   dev->vendor, dev->device, dev->hdr_type, dev->class);
 
+	if (pci_early_dump)
+		early_dump_pci_device(dev);
+
 	/* Need to have dev->class ready */
 	dev->cfg_size = pci_cfg_space_size(dev);
 
-- 
2.7.4

[PATCH] PCI: move early dump functionality from x86 arch into the common code

[Sinan Kaya]

Move early dump functionality into common code so that it is available for
all archtiectures. No need to carry arch specific reads around as the read
hooks are already initialized by the time pci_setup_device() is getting
called during scan.

Signed-off-by: Sinan Kaya <okaya@codeaurora.org>
---
 Documentation/admin-guide/kernel-parameters.txt |  2 +-
 arch/x86/include/asm/pci-direct.h               |  5 ---
 arch/x86/kernel/setup.c                         |  5 ---
 arch/x86/pci/common.c                           |  4 --
 arch/x86/pci/early.c                            | 50 -------------------------
 drivers/pci/pci.c                               |  4 ++
 drivers/pci/pci.h                               |  2 +-
 drivers/pci/probe.c                             | 19 ++++++++++
 8 files changed, 25 insertions(+), 66 deletions(-)

diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt
index c247612..4459270 100644
--- a/Documentation/admin-guide/kernel-parameters.txt
+++ b/Documentation/admin-guide/kernel-parameters.txt
@@ -2986,7 +2986,7 @@
 			See also Documentation/blockdev/paride.txt.
 
 	pci=option[,option...]	[PCI] various PCI subsystem options:
-		earlydump	[X86] dump PCI config space before the kernel
+		earlydump	dump PCI config space before the kernel
 				changes anything
 		off		[X86] don't probe for the PCI bus
 		bios		[X86-32] force use of PCI BIOS, don't access
diff --git a/arch/x86/include/asm/pci-direct.h b/arch/x86/include/asm/pci-direct.h
index e1084f7..e5e2129 100644
--- a/arch/x86/include/asm/pci-direct.h
+++ b/arch/x86/include/asm/pci-direct.h
@@ -14,9 +14,4 @@ extern void write_pci_config(u8 bus, u8 slot, u8 func, u8 offset, u32 val);
 extern void write_pci_config_byte(u8 bus, u8 slot, u8 func, u8 offset, u8 val);
 extern void write_pci_config_16(u8 bus, u8 slot, u8 func, u8 offset, u16 val);
 
-extern int early_pci_allowed(void);
-
-extern unsigned int pci_early_dump_regs;
-extern void early_dump_pci_device(u8 bus, u8 slot, u8 func);
-extern void early_dump_pci_devices(void);
 #endif /* _ASM_X86_PCI_DIRECT_H */
diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c
index 2f86d88..480f250 100644
--- a/arch/x86/kernel/setup.c
+++ b/arch/x86/kernel/setup.c
@@ -991,11 +991,6 @@ void __init setup_arch(char **cmdline_p)
 		setup_clear_cpu_cap(X86_FEATURE_APIC);
 	}
 
-#ifdef CONFIG_PCI
-	if (pci_early_dump_regs)
-		early_dump_pci_devices();
-#endif
-
 	e820__reserve_setup_data();
 	e820__finish_early_params();
 
diff --git a/arch/x86/pci/common.c b/arch/x86/pci/common.c
index 563049c..d4ec117 100644
--- a/arch/x86/pci/common.c
+++ b/arch/x86/pci/common.c
@@ -22,7 +22,6 @@
 unsigned int pci_probe = PCI_PROBE_BIOS | PCI_PROBE_CONF1 | PCI_PROBE_CONF2 |
 				PCI_PROBE_MMCONF;
 
-unsigned int pci_early_dump_regs;
 static int pci_bf_sort;
 int pci_routeirq;
 int noioapicquirk;
@@ -599,9 +598,6 @@ char *__init pcibios_setup(char *str)
 		pci_probe |= PCI_BIG_ROOT_WINDOW;
 		return NULL;
 #endif
-	} else if (!strcmp(str, "earlydump")) {
-		pci_early_dump_regs = 1;
-		return NULL;
 	} else if (!strcmp(str, "routeirq")) {
 		pci_routeirq = 1;
 		return NULL;
diff --git a/arch/x86/pci/early.c b/arch/x86/pci/early.c
index e5f753c..e20d449 100644
--- a/arch/x86/pci/early.c
+++ b/arch/x86/pci/early.c
@@ -51,53 +51,3 @@ void write_pci_config_16(u8 bus, u8 slot, u8 func, u8 offset, u16 val)
 	outw(val, 0xcfc + (offset&2));
 }
 
-int early_pci_allowed(void)
-{
-	return (pci_probe & (PCI_PROBE_CONF1|PCI_PROBE_NOEARLY)) ==
-			PCI_PROBE_CONF1;
-}
-
-void early_dump_pci_device(u8 bus, u8 slot, u8 func)
-{
-	u32 value[256 / 4];
-	int i;
-
-	pr_info("pci 0000:%02x:%02x.%d config space:\n", bus, slot, func);
-
-	for (i = 0; i < 256; i += 4)
-		value[i / 4] = read_pci_config(bus, slot, func, i);
-
-	print_hex_dump(KERN_INFO, "", DUMP_PREFIX_OFFSET, 16, 1, value, 256, false);
-}
-
-void early_dump_pci_devices(void)
-{
-	unsigned bus, slot, func;
-
-	if (!early_pci_allowed())
-		return;
-
-	for (bus = 0; bus < 256; bus++) {
-		for (slot = 0; slot < 32; slot++) {
-			for (func = 0; func < 8; func++) {
-				u32 class;
-				u8 type;
-
-				class = read_pci_config(bus, slot, func,
-							PCI_CLASS_REVISION);
-				if (class == 0xffffffff)
-					continue;
-
-				early_dump_pci_device(bus, slot, func);
-
-				if (func == 0) {
-					type = read_pci_config_byte(bus, slot,
-								    func,
-							       PCI_HEADER_TYPE);
-					if (!(type & 0x80))
-						break;
-				}
-			}
-		}
-	}
-}
diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c
index 7c03701..ae5a2ae 100644
--- a/drivers/pci/pci.c
+++ b/drivers/pci/pci.c
@@ -115,6 +115,8 @@ static bool pcie_ari_disabled;
 /* If set, the PCIe ATS capability will not be used. */
 static bool pcie_ats_disabled;
 
+bool pci_early_dump;
+
 bool pci_ats_disabled(void)
 {
 	return pcie_ats_disabled;
@@ -5848,6 +5850,8 @@ static int __init pci_setup(char *str)
 				pcie_ats_disabled = true;
 			} else if (!strcmp(str, "noaer")) {
 				pci_no_aer();
+			} else if (!strcmp(str, "earlydump")) {
+				pci_early_dump = true;
 			} else if (!strncmp(str, "realloc=", 8)) {
 				pci_realloc_get_opt(str + 8);
 			} else if (!strncmp(str, "realloc", 7)) {
diff --git a/drivers/pci/pci.h b/drivers/pci/pci.h
index c358e7a0..9c66b7d 100644
--- a/drivers/pci/pci.h
+++ b/drivers/pci/pci.h
@@ -7,7 +7,7 @@
 #define PCI_VSEC_ID_INTEL_TBT	0x1234	/* Thunderbolt */
 
 extern const unsigned char pcie_link_speed[];
-
+extern bool pci_early_dump;
 bool pcie_cap_has_lnkctl(const struct pci_dev *dev);
 
 /* Functions internal to the PCI core code */
diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c
index 3840207..b1f068d 100644
--- a/drivers/pci/probe.c
+++ b/drivers/pci/probe.c
@@ -1549,6 +1549,22 @@ static int pci_intx_mask_broken(struct pci_dev *dev)
 	return 0;
 }
 
+static void early_dump_pci_device(struct pci_dev *pdev)
+{
+	u32 value[256 / 4];
+	int i;
+
+	dev_info(&pdev->dev, "pci 0000:%02x:%02x.%d config space:\n",
+		 pdev->bus->number, PCI_SLOT(pdev->devfn),
+		 PCI_FUNC(pdev->devfn));
+
+	for (i = 0; i < 256; i += 4)
+		pci_read_config_dword(pdev, i, &value[i / 4]);
+
+	print_hex_dump(KERN_INFO, "", DUMP_PREFIX_OFFSET, 16, 1, value,
+		       256, false);
+}
+
 /**
  * pci_setup_device - Fill in class and map information of a device
  * @dev: the device structure to fill
@@ -1598,6 +1614,9 @@ int pci_setup_device(struct pci_dev *dev)
 	pci_printk(KERN_DEBUG, dev, "[%04x:%04x] type %02x class %#08x\n",
 		   dev->vendor, dev->device, dev->hdr_type, dev->class);
 
+	if (pci_early_dump)
+		early_dump_pci_device(dev);
+
 	/* Need to have dev->class ready */
 	dev->cfg_size = pci_cfg_space_size(dev);
 
-- 
2.7.4

[PATCH] PCI: move early dump functionality from x86 arch into the common code

[Sinan Kaya]

Move early dump functionality into common code so that it is available for
all archtiectures. No need to carry arch specific reads around as the read
hooks are already initialized by the time pci_setup_device() is getting
called during scan.

Signed-off-by: Sinan Kaya <okaya@codeaurora.org>
---
 Documentation/admin-guide/kernel-parameters.txt |  2 +-
 arch/x86/include/asm/pci-direct.h               |  5 ---
 arch/x86/kernel/setup.c                         |  5 ---
 arch/x86/pci/common.c                           |  4 --
 arch/x86/pci/early.c                            | 50 -------------------------
 drivers/pci/pci.c                               |  4 ++
 drivers/pci/pci.h                               |  2 +-
 drivers/pci/probe.c                             | 19 ++++++++++
 8 files changed, 25 insertions(+), 66 deletions(-)

diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt
index c247612..4459270 100644
--- a/Documentation/admin-guide/kernel-parameters.txt
+++ b/Documentation/admin-guide/kernel-parameters.txt
@@ -2986,7 +2986,7 @@
 			See also Documentation/blockdev/paride.txt.
 
 	pci=option[,option...]	[PCI] various PCI subsystem options:
-		earlydump	[X86] dump PCI config space before the kernel
+		earlydump	dump PCI config space before the kernel
 				changes anything
 		off		[X86] don't probe for the PCI bus
 		bios		[X86-32] force use of PCI BIOS, don't access
diff --git a/arch/x86/include/asm/pci-direct.h b/arch/x86/include/asm/pci-direct.h
index e1084f7..e5e2129 100644
--- a/arch/x86/include/asm/pci-direct.h
+++ b/arch/x86/include/asm/pci-direct.h
@@ -14,9 +14,4 @@ extern void write_pci_config(u8 bus, u8 slot, u8 func, u8 offset, u32 val);
 extern void write_pci_config_byte(u8 bus, u8 slot, u8 func, u8 offset, u8 val);
 extern void write_pci_config_16(u8 bus, u8 slot, u8 func, u8 offset, u16 val);
 
-extern int early_pci_allowed(void);
-
-extern unsigned int pci_early_dump_regs;
-extern void early_dump_pci_device(u8 bus, u8 slot, u8 func);
-extern void early_dump_pci_devices(void);
 #endif /* _ASM_X86_PCI_DIRECT_H */
diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c
index 2f86d88..480f250 100644
--- a/arch/x86/kernel/setup.c
+++ b/arch/x86/kernel/setup.c
@@ -991,11 +991,6 @@ void __init setup_arch(char **cmdline_p)
 		setup_clear_cpu_cap(X86_FEATURE_APIC);
 	}
 
-#ifdef CONFIG_PCI
-	if (pci_early_dump_regs)
-		early_dump_pci_devices();
-#endif
-
 	e820__reserve_setup_data();
 	e820__finish_early_params();
 
diff --git a/arch/x86/pci/common.c b/arch/x86/pci/common.c
index 563049c..d4ec117 100644
--- a/arch/x86/pci/common.c
+++ b/arch/x86/pci/common.c
@@ -22,7 +22,6 @@
 unsigned int pci_probe = PCI_PROBE_BIOS | PCI_PROBE_CONF1 | PCI_PROBE_CONF2 |
 				PCI_PROBE_MMCONF;
 
-unsigned int pci_early_dump_regs;
 static int pci_bf_sort;
 int pci_routeirq;
 int noioapicquirk;
@@ -599,9 +598,6 @@ char *__init pcibios_setup(char *str)
 		pci_probe |= PCI_BIG_ROOT_WINDOW;
 		return NULL;
 #endif
-	} else if (!strcmp(str, "earlydump")) {
-		pci_early_dump_regs = 1;
-		return NULL;
 	} else if (!strcmp(str, "routeirq")) {
 		pci_routeirq = 1;
 		return NULL;
diff --git a/arch/x86/pci/early.c b/arch/x86/pci/early.c
index e5f753c..e20d449 100644
--- a/arch/x86/pci/early.c
+++ b/arch/x86/pci/early.c
@@ -51,53 +51,3 @@ void write_pci_config_16(u8 bus, u8 slot, u8 func, u8 offset, u16 val)
 	outw(val, 0xcfc + (offset&2));
 }
 
-int early_pci_allowed(void)
-{
-	return (pci_probe & (PCI_PROBE_CONF1|PCI_PROBE_NOEARLY)) ==
-			PCI_PROBE_CONF1;
-}
-
-void early_dump_pci_device(u8 bus, u8 slot, u8 func)
-{
-	u32 value[256 / 4];
-	int i;
-
-	pr_info("pci 0000:%02x:%02x.%d config space:\n", bus, slot, func);
-
-	for (i = 0; i < 256; i += 4)
-		value[i / 4] = read_pci_config(bus, slot, func, i);
-
-	print_hex_dump(KERN_INFO, "", DUMP_PREFIX_OFFSET, 16, 1, value, 256, false);
-}
-
-void early_dump_pci_devices(void)
-{
-	unsigned bus, slot, func;
-
-	if (!early_pci_allowed())
-		return;
-
-	for (bus = 0; bus < 256; bus++) {
-		for (slot = 0; slot < 32; slot++) {
-			for (func = 0; func < 8; func++) {
-				u32 class;
-				u8 type;
-
-				class = read_pci_config(bus, slot, func,
-							PCI_CLASS_REVISION);
-				if (class == 0xffffffff)
-					continue;
-
-				early_dump_pci_device(bus, slot, func);
-
-				if (func == 0) {
-					type = read_pci_config_byte(bus, slot,
-								    func,
-							       PCI_HEADER_TYPE);
-					if (!(type & 0x80))
-						break;
-				}
-			}
-		}
-	}
-}
diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c
index 7c03701..ae5a2ae 100644
--- a/drivers/pci/pci.c
+++ b/drivers/pci/pci.c
@@ -115,6 +115,8 @@ static bool pcie_ari_disabled;
 /* If set, the PCIe ATS capability will not be used. */
 static bool pcie_ats_disabled;
 
+bool pci_early_dump;
+
 bool pci_ats_disabled(void)
 {
 	return pcie_ats_disabled;
@@ -5848,6 +5850,8 @@ static int __init pci_setup(char *str)
 				pcie_ats_disabled = true;
 			} else if (!strcmp(str, "noaer")) {
 				pci_no_aer();
+			} else if (!strcmp(str, "earlydump")) {
+				pci_early_dump = true;
 			} else if (!strncmp(str, "realloc=", 8)) {
 				pci_realloc_get_opt(str + 8);
 			} else if (!strncmp(str, "realloc", 7)) {
diff --git a/drivers/pci/pci.h b/drivers/pci/pci.h
index c358e7a0..9c66b7d 100644
--- a/drivers/pci/pci.h
+++ b/drivers/pci/pci.h
@@ -7,7 +7,7 @@
 #define PCI_VSEC_ID_INTEL_TBT	0x1234	/* Thunderbolt */
 
 extern const unsigned char pcie_link_speed[];
-
+extern bool pci_early_dump;
 bool pcie_cap_has_lnkctl(const struct pci_dev *dev);
 
 /* Functions internal to the PCI core code */
diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c
index 3840207..b1f068d 100644
--- a/drivers/pci/probe.c
+++ b/drivers/pci/probe.c
@@ -1549,6 +1549,22 @@ static int pci_intx_mask_broken(struct pci_dev *dev)
 	return 0;
 }
 
+static void early_dump_pci_device(struct pci_dev *pdev)
+{
+	u32 value[256 / 4];
+	int i;
+
+	dev_info(&pdev->dev, "pci 0000:%02x:%02x.%d config space:\n",
+		 pdev->bus->number, PCI_SLOT(pdev->devfn),
+		 PCI_FUNC(pdev->devfn));
+
+	for (i = 0; i < 256; i += 4)
+		pci_read_config_dword(pdev, i, &value[i / 4]);
+
+	print_hex_dump(KERN_INFO, "", DUMP_PREFIX_OFFSET, 16, 1, value,
+		       256, false);
+}
+
 /**
  * pci_setup_device - Fill in class and map information of a device
  * @dev: the device structure to fill
@@ -1598,6 +1614,9 @@ int pci_setup_device(struct pci_dev *dev)
 	pci_printk(KERN_DEBUG, dev, "[%04x:%04x] type %02x class %#08x\n",
 		   dev->vendor, dev->device, dev->hdr_type, dev->class);
 
+	if (pci_early_dump)
+		early_dump_pci_device(dev);
+
 	/* Need to have dev->class ready */
 	dev->cfg_size = pci_cfg_space_size(dev);
 
-- 
2.7.4

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[PATCH] PCI: move early dump functionality from x86 arch into the common code

[Sinan Kaya]

Move early dump functionality into common code so that it is available for
all archtiectures. No need to carry arch specific reads around as the read
hooks are already initialized by the time pci_setup_device() is getting
called during scan.

Signed-off-by: Sinan Kaya <okaya@codeaurora.org>
---
 Documentation/admin-guide/kernel-parameters.txt |  2 +-
 arch/x86/include/asm/pci-direct.h               |  5 ---
 arch/x86/kernel/setup.c                         |  5 ---
 arch/x86/pci/common.c                           |  4 --
 arch/x86/pci/early.c                            | 50 -------------------------
 drivers/pci/pci.c                               |  4 ++
 drivers/pci/pci.h                               |  2 +-
 drivers/pci/probe.c                             | 19 ++++++++++
 8 files changed, 25 insertions(+), 66 deletions(-)

diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt
index c247612..4459270 100644
--- a/Documentation/admin-guide/kernel-parameters.txt
+++ b/Documentation/admin-guide/kernel-parameters.txt
@@ -2986,7 +2986,7 @@
 			See also Documentation/blockdev/paride.txt.
 
 	pci=option[,option...]	[PCI] various PCI subsystem options:
-		earlydump	[X86] dump PCI config space before the kernel
+		earlydump	dump PCI config space before the kernel
 				changes anything
 		off		[X86] don't probe for the PCI bus
 		bios		[X86-32] force use of PCI BIOS, don't access
diff --git a/arch/x86/include/asm/pci-direct.h b/arch/x86/include/asm/pci-direct.h
index e1084f7..e5e2129 100644
--- a/arch/x86/include/asm/pci-direct.h
+++ b/arch/x86/include/asm/pci-direct.h
@@ -14,9 +14,4 @@ extern void write_pci_config(u8 bus, u8 slot, u8 func, u8 offset, u32 val);
 extern void write_pci_config_byte(u8 bus, u8 slot, u8 func, u8 offset, u8 val);
 extern void write_pci_config_16(u8 bus, u8 slot, u8 func, u8 offset, u16 val);
 
-extern int early_pci_allowed(void);
-
-extern unsigned int pci_early_dump_regs;
-extern void early_dump_pci_device(u8 bus, u8 slot, u8 func);
-extern void early_dump_pci_devices(void);
 #endif /* _ASM_X86_PCI_DIRECT_H */
diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c
index 2f86d88..480f250 100644
--- a/arch/x86/kernel/setup.c
+++ b/arch/x86/kernel/setup.c
@@ -991,11 +991,6 @@ void __init setup_arch(char **cmdline_p)
 		setup_clear_cpu_cap(X86_FEATURE_APIC);
 	}
 
-#ifdef CONFIG_PCI
-	if (pci_early_dump_regs)
-		early_dump_pci_devices();
-#endif
-
 	e820__reserve_setup_data();
 	e820__finish_early_params();
 
diff --git a/arch/x86/pci/common.c b/arch/x86/pci/common.c
index 563049c..d4ec117 100644
--- a/arch/x86/pci/common.c
+++ b/arch/x86/pci/common.c
@@ -22,7 +22,6 @@
 unsigned int pci_probe = PCI_PROBE_BIOS | PCI_PROBE_CONF1 | PCI_PROBE_CONF2 |
 				PCI_PROBE_MMCONF;
 
-unsigned int pci_early_dump_regs;
 static int pci_bf_sort;
 int pci_routeirq;
 int noioapicquirk;
@@ -599,9 +598,6 @@ char *__init pcibios_setup(char *str)
 		pci_probe |= PCI_BIG_ROOT_WINDOW;
 		return NULL;
 #endif
-	} else if (!strcmp(str, "earlydump")) {
-		pci_early_dump_regs = 1;
-		return NULL;
 	} else if (!strcmp(str, "routeirq")) {
 		pci_routeirq = 1;
 		return NULL;
diff --git a/arch/x86/pci/early.c b/arch/x86/pci/early.c
index e5f753c..e20d449 100644
--- a/arch/x86/pci/early.c
+++ b/arch/x86/pci/early.c
@@ -51,53 +51,3 @@ void write_pci_config_16(u8 bus, u8 slot, u8 func, u8 offset, u16 val)
 	outw(val, 0xcfc + (offset&2));
 }
 
-int early_pci_allowed(void)
-{
-	return (pci_probe & (PCI_PROBE_CONF1|PCI_PROBE_NOEARLY)) ==
-			PCI_PROBE_CONF1;
-}
-
-void early_dump_pci_device(u8 bus, u8 slot, u8 func)
-{
-	u32 value[256 / 4];
-	int i;
-
-	pr_info("pci 0000:%02x:%02x.%d config space:\n", bus, slot, func);
-
-	for (i = 0; i < 256; i += 4)
-		value[i / 4] = read_pci_config(bus, slot, func, i);
-
-	print_hex_dump(KERN_INFO, "", DUMP_PREFIX_OFFSET, 16, 1, value, 256, false);
-}
-
-void early_dump_pci_devices(void)
-{
-	unsigned bus, slot, func;
-
-	if (!early_pci_allowed())
-		return;
-
-	for (bus = 0; bus < 256; bus++) {
-		for (slot = 0; slot < 32; slot++) {
-			for (func = 0; func < 8; func++) {
-				u32 class;
-				u8 type;
-
-				class = read_pci_config(bus, slot, func,
-							PCI_CLASS_REVISION);
-				if (class == 0xffffffff)
-					continue;
-
-				early_dump_pci_device(bus, slot, func);
-
-				if (func == 0) {
-					type = read_pci_config_byte(bus, slot,
-								    func,
-							       PCI_HEADER_TYPE);
-					if (!(type & 0x80))
-						break;
-				}
-			}
-		}
-	}
-}
diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c
index 7c03701..ae5a2ae 100644
--- a/drivers/pci/pci.c
+++ b/drivers/pci/pci.c
@@ -115,6 +115,8 @@ static bool pcie_ari_disabled;
 /* If set, the PCIe ATS capability will not be used. */
 static bool pcie_ats_disabled;
 
+bool pci_early_dump;
+
 bool pci_ats_disabled(void)
 {
 	return pcie_ats_disabled;
@@ -5848,6 +5850,8 @@ static int __init pci_setup(char *str)
 				pcie_ats_disabled = true;
 			} else if (!strcmp(str, "noaer")) {
 				pci_no_aer();
+			} else if (!strcmp(str, "earlydump")) {
+				pci_early_dump = true;
 			} else if (!strncmp(str, "realloc=", 8)) {
 				pci_realloc_get_opt(str + 8);
 			} else if (!strncmp(str, "realloc", 7)) {
diff --git a/drivers/pci/pci.h b/drivers/pci/pci.h
index c358e7a0..9c66b7d 100644
--- a/drivers/pci/pci.h
+++ b/drivers/pci/pci.h
@@ -7,7 +7,7 @@
 #define PCI_VSEC_ID_INTEL_TBT	0x1234	/* Thunderbolt */
 
 extern const unsigned char pcie_link_speed[];
-
+extern bool pci_early_dump;
 bool pcie_cap_has_lnkctl(const struct pci_dev *dev);
 
 /* Functions internal to the PCI core code */
diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c
index 3840207..b1f068d 100644
--- a/drivers/pci/probe.c
+++ b/drivers/pci/probe.c
@@ -1549,6 +1549,22 @@ static int pci_intx_mask_broken(struct pci_dev *dev)
 	return 0;
 }
 
+static void early_dump_pci_device(struct pci_dev *pdev)
+{
+	u32 value[256 / 4];
+	int i;
+
+	dev_info(&pdev->dev, "pci 0000:%02x:%02x.%d config space:\n",
+		 pdev->bus->number, PCI_SLOT(pdev->devfn),
+		 PCI_FUNC(pdev->devfn));
+
+	for (i = 0; i < 256; i += 4)
+		pci_read_config_dword(pdev, i, &value[i / 4]);
+
+	print_hex_dump(KERN_INFO, "", DUMP_PREFIX_OFFSET, 16, 1, value,
+		       256, false);
+}
+
 /**
  * pci_setup_device - Fill in class and map information of a device
  * @dev: the device structure to fill
@@ -1598,6 +1614,9 @@ int pci_setup_device(struct pci_dev *dev)
 	pci_printk(KERN_DEBUG, dev, "[%04x:%04x] type %02x class %#08x\n",
 		   dev->vendor, dev->device, dev->hdr_type, dev->class);
 
+	if (pci_early_dump)
+		early_dump_pci_device(dev);
+
 	/* Need to have dev->class ready */
 	dev->cfg_size = pci_cfg_space_size(dev);
 
-- 
2.7.4


_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

[PATCH] PCI: move early dump functionality from x86 arch into the common code

[Sinan Kaya]

Move early dump functionality into common code so that it is available for
all archtiectures. No need to carry arch specific reads around as the read
hooks are already initialized by the time pci_setup_device() is getting
called during scan.

Signed-off-by: Sinan Kaya <okaya@codeaurora.org>
---
 Documentation/admin-guide/kernel-parameters.txt |  2 +-
 arch/x86/include/asm/pci-direct.h               |  5 ---
 arch/x86/kernel/setup.c                         |  5 ---
 arch/x86/pci/common.c                           |  4 --
 arch/x86/pci/early.c                            | 50 -------------------------
 drivers/pci/pci.c                               |  4 ++
 drivers/pci/pci.h                               |  2 +-
 drivers/pci/probe.c                             | 19 ++++++++++
 8 files changed, 25 insertions(+), 66 deletions(-)

diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt
index c247612..4459270 100644
--- a/Documentation/admin-guide/kernel-parameters.txt
+++ b/Documentation/admin-guide/kernel-parameters.txt
@@ -2986,7 +2986,7 @@
 			See also Documentation/blockdev/paride.txt.
 
 	pci=option[,option...]	[PCI] various PCI subsystem options:
-		earlydump	[X86] dump PCI config space before the kernel
+		earlydump	dump PCI config space before the kernel
 				changes anything
 		off		[X86] don't probe for the PCI bus
 		bios		[X86-32] force use of PCI BIOS, don't access
diff --git a/arch/x86/include/asm/pci-direct.h b/arch/x86/include/asm/pci-direct.h
index e1084f7..e5e2129 100644
--- a/arch/x86/include/asm/pci-direct.h
+++ b/arch/x86/include/asm/pci-direct.h
@@ -14,9 +14,4 @@ extern void write_pci_config(u8 bus, u8 slot, u8 func, u8 offset, u32 val);
 extern void write_pci_config_byte(u8 bus, u8 slot, u8 func, u8 offset, u8 val);
 extern void write_pci_config_16(u8 bus, u8 slot, u8 func, u8 offset, u16 val);
 
-extern int early_pci_allowed(void);
-
-extern unsigned int pci_early_dump_regs;
-extern void early_dump_pci_device(u8 bus, u8 slot, u8 func);
-extern void early_dump_pci_devices(void);
 #endif /* _ASM_X86_PCI_DIRECT_H */
diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c
index 2f86d88..480f250 100644
--- a/arch/x86/kernel/setup.c
+++ b/arch/x86/kernel/setup.c
@@ -991,11 +991,6 @@ void __init setup_arch(char **cmdline_p)
 		setup_clear_cpu_cap(X86_FEATURE_APIC);
 	}
 
-#ifdef CONFIG_PCI
-	if (pci_early_dump_regs)
-		early_dump_pci_devices();
-#endif
-
 	e820__reserve_setup_data();
 	e820__finish_early_params();
 
diff --git a/arch/x86/pci/common.c b/arch/x86/pci/common.c
index 563049c..d4ec117 100644
--- a/arch/x86/pci/common.c
+++ b/arch/x86/pci/common.c
@@ -22,7 +22,6 @@
 unsigned int pci_probe = PCI_PROBE_BIOS | PCI_PROBE_CONF1 | PCI_PROBE_CONF2 |
 				PCI_PROBE_MMCONF;
 
-unsigned int pci_early_dump_regs;
 static int pci_bf_sort;
 int pci_routeirq;
 int noioapicquirk;
@@ -599,9 +598,6 @@ char *__init pcibios_setup(char *str)
 		pci_probe |= PCI_BIG_ROOT_WINDOW;
 		return NULL;
 #endif
-	} else if (!strcmp(str, "earlydump")) {
-		pci_early_dump_regs = 1;
-		return NULL;
 	} else if (!strcmp(str, "routeirq")) {
 		pci_routeirq = 1;
 		return NULL;
diff --git a/arch/x86/pci/early.c b/arch/x86/pci/early.c
index e5f753c..e20d449 100644
--- a/arch/x86/pci/early.c
+++ b/arch/x86/pci/early.c
@@ -51,53 +51,3 @@ void write_pci_config_16(u8 bus, u8 slot, u8 func, u8 offset, u16 val)
 	outw(val, 0xcfc + (offset&2));
 }
 
-int early_pci_allowed(void)
-{
-	return (pci_probe & (PCI_PROBE_CONF1|PCI_PROBE_NOEARLY)) ==
-			PCI_PROBE_CONF1;
-}
-
-void early_dump_pci_device(u8 bus, u8 slot, u8 func)
-{
-	u32 value[256 / 4];
-	int i;
-
-	pr_info("pci 0000:%02x:%02x.%d config space:\n", bus, slot, func);
-
-	for (i = 0; i < 256; i += 4)
-		value[i / 4] = read_pci_config(bus, slot, func, i);
-
-	print_hex_dump(KERN_INFO, "", DUMP_PREFIX_OFFSET, 16, 1, value, 256, false);
-}
-
-void early_dump_pci_devices(void)
-{
-	unsigned bus, slot, func;
-
-	if (!early_pci_allowed())
-		return;
-
-	for (bus = 0; bus < 256; bus++) {
-		for (slot = 0; slot < 32; slot++) {
-			for (func = 0; func < 8; func++) {
-				u32 class;
-				u8 type;
-
-				class = read_pci_config(bus, slot, func,
-							PCI_CLASS_REVISION);
-				if (class == 0xffffffff)
-					continue;
-
-				early_dump_pci_device(bus, slot, func);
-
-				if (func == 0) {
-					type = read_pci_config_byte(bus, slot,
-								    func,
-							       PCI_HEADER_TYPE);
-					if (!(type & 0x80))
-						break;
-				}
-			}
-		}
-	}
-}
diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c
index 7c03701..ae5a2ae 100644
--- a/drivers/pci/pci.c
+++ b/drivers/pci/pci.c
@@ -115,6 +115,8 @@ static bool pcie_ari_disabled;
 /* If set, the PCIe ATS capability will not be used. */
 static bool pcie_ats_disabled;
 
+bool pci_early_dump;
+
 bool pci_ats_disabled(void)
 {
 	return pcie_ats_disabled;
@@ -5848,6 +5850,8 @@ static int __init pci_setup(char *str)
 				pcie_ats_disabled = true;
 			} else if (!strcmp(str, "noaer")) {
 				pci_no_aer();
+			} else if (!strcmp(str, "earlydump")) {
+				pci_early_dump = true;
 			} else if (!strncmp(str, "realloc=", 8)) {
 				pci_realloc_get_opt(str + 8);
 			} else if (!strncmp(str, "realloc", 7)) {
diff --git a/drivers/pci/pci.h b/drivers/pci/pci.h
index c358e7a0..9c66b7d 100644
--- a/drivers/pci/pci.h
+++ b/drivers/pci/pci.h
@@ -7,7 +7,7 @@
 #define PCI_VSEC_ID_INTEL_TBT	0x1234	/* Thunderbolt */
 
 extern const unsigned char pcie_link_speed[];
-
+extern bool pci_early_dump;
 bool pcie_cap_has_lnkctl(const struct pci_dev *dev);
 
 /* Functions internal to the PCI core code */
diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c
index 3840207..b1f068d 100644
--- a/drivers/pci/probe.c
+++ b/drivers/pci/probe.c
@@ -1549,6 +1549,22 @@ static int pci_intx_mask_broken(struct pci_dev *dev)
 	return 0;
 }
 
+static void early_dump_pci_device(struct pci_dev *pdev)
+{
+	u32 value[256 / 4];
+	int i;
+
+	dev_info(&pdev->dev, "pci 0000:%02x:%02x.%d config space:\n",
+		 pdev->bus->number, PCI_SLOT(pdev->devfn),
+		 PCI_FUNC(pdev->devfn));
+
+	for (i = 0; i < 256; i += 4)
+		pci_read_config_dword(pdev, i, &value[i / 4]);
+
+	print_hex_dump(KERN_INFO, "", DUMP_PREFIX_OFFSET, 16, 1, value,
+		       256, false);
+}
+
 /**
  * pci_setup_device - Fill in class and map information of a device
  * @dev: the device structure to fill
@@ -1598,6 +1614,9 @@ int pci_setup_device(struct pci_dev *dev)
 	pci_printk(KERN_DEBUG, dev, "[%04x:%04x] type %02x class %#08x\n",
 		   dev->vendor, dev->device, dev->hdr_type, dev->class);
 
+	if (pci_early_dump)
+		early_dump_pci_device(dev);
+
 	/* Need to have dev->class ready */
 	dev->cfg_size = pci_cfg_space_size(dev);
 
-- 
2.7.4

Re: [PATCH] PCI: move early dump functionality from x86 arch into the common code

[Sinan Kaya]

On 5/29/2018 9:34 PM, Sinan Kaya wrote:
> -int early_pci_allowed(void)
> -{
> -	return (pci_probe & (PCI_PROBE_CONF1|PCI_PROBE_NOEARLY)) ==
> -			PCI_PROBE_CONF1;
> -}

I should have kept this. I'll wait for more feedback before posting the
next rev. 

-- 
Sinan Kaya
Qualcomm Datacenter Technologies, Inc. as an affiliate of Qualcomm Technologies, Inc.
Qualcomm Technologies, Inc. is a member of the Code Aurora Forum, a Linux Foundation Collaborative Project.

Re: [PATCH] PCI: move early dump functionality from x86 arch into the common code

[Sinan Kaya]

On 5/29/2018 9:34 PM, Sinan Kaya wrote:
> -int early_pci_allowed(void)
> -{
> -	return (pci_probe & (PCI_PROBE_CONF1|PCI_PROBE_NOEARLY)) ==
> -			PCI_PROBE_CONF1;
> -}

I should have kept this. I'll wait for more feedback before posting the
next rev. 

-- 
Sinan Kaya
Qualcomm Datacenter Technologies, Inc. as an affiliate of Qualcomm Technologies, Inc.
Qualcomm Technologies, Inc. is a member of the Code Aurora Forum, a Linux Foundation Collaborative Project.

Re: [PATCH] PCI: move early dump functionality from x86 arch into the common code

[Sinan Kaya]

On 5/29/2018 9:34 PM, Sinan Kaya wrote:
> -int early_pci_allowed(void)
> -{
> -	return (pci_probe & (PCI_PROBE_CONF1|PCI_PROBE_NOEARLY)) ==
> -			PCI_PROBE_CONF1;
> -}

I should have kept this. I'll wait for more feedback before posting the
next rev. 

-- 
Sinan Kaya
Qualcomm Datacenter Technologies, Inc. as an affiliate of Qualcomm Technologies, Inc.
Qualcomm Technologies, Inc. is a member of the Code Aurora Forum, a Linux Foundation Collaborative Project.
--
To unsubscribe from this list: send the line "unsubscribe linux-doc" in
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More majordomo info at  http://vger.kernel.org/majordomo-info.html

Re: [PATCH] PCI: move early dump functionality from x86 arch into the common code

[Sinan Kaya]

On 5/29/2018 9:34 PM, Sinan Kaya wrote:
> -int early_pci_allowed(void)
> -{
> -	return (pci_probe & (PCI_PROBE_CONF1|PCI_PROBE_NOEARLY)) ==
> -			PCI_PROBE_CONF1;
> -}

I should have kept this. I'll wait for more feedback before posting the
next rev. 

-- 
Sinan Kaya
Qualcomm Datacenter Technologies, Inc. as an affiliate of Qualcomm Technologies, Inc.
Qualcomm Technologies, Inc. is a member of the Code Aurora Forum, a Linux Foundation Collaborative Project.

_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

[PATCH] PCI: move early dump functionality from x86 arch into the common code

[Sinan Kaya]

On 5/29/2018 9:34 PM, Sinan Kaya wrote:
> -int early_pci_allowed(void)
> -{
> -	return (pci_probe & (PCI_PROBE_CONF1|PCI_PROBE_NOEARLY)) ==
> -			PCI_PROBE_CONF1;
> -}

I should have kept this. I'll wait for more feedback before posting the
next rev. 

-- 
Sinan Kaya
Qualcomm Datacenter Technologies, Inc. as an affiliate of Qualcomm Technologies, Inc.
Qualcomm Technologies, Inc. is a member of the Code Aurora Forum, a Linux Foundation Collaborative Project.

Re: [PATCH] PCI: move early dump functionality from x86 arch into the common code

[Sinan Kaya]

On 5/30/2018 12:34 AM, Sinan Kaya wrote:
> Move early dump functionality into common code so that it is available for
> all archtiectures. No need to carry arch specific reads around as the read
> hooks are already initialized by the time pci_setup_device() is getting
> called during scan.
> 
> Signed-off-by: Sinan Kaya <okaya@codeaurora.org>
> ---
>  Documentation/admin-guide/kernel-parameters.txt |  2 +-
>  arch/x86/include/asm/pci-direct.h               |  5 ---
>  arch/x86/kernel/setup.c                         |  5 ---
>  arch/x86/pci/common.c                           |  4 --
>  arch/x86/pci/early.c                            | 50 -------------------------
>  drivers/pci/pci.c                               |  4 ++
>  drivers/pci/pci.h                               |  2 +-
>  drivers/pci/probe.c                             | 19 ++++++++++
>  8 files changed, 25 insertions(+), 66 deletions(-)

Any feedback on the direction?

-- 
Sinan Kaya
Qualcomm Datacenter Technologies, Inc. as an affiliate of Qualcomm Technologies, Inc.
Qualcomm Technologies, Inc. is a member of the Code Aurora Forum, a Linux Foundation Collaborative Project.

Re: [PATCH] PCI: move early dump functionality from x86 arch into the common code

[Sinan Kaya]

On 5/30/2018 12:34 AM, Sinan Kaya wrote:
> Move early dump functionality into common code so that it is available for
> all archtiectures. No need to carry arch specific reads around as the read
> hooks are already initialized by the time pci_setup_device() is getting
> called during scan.
> 
> Signed-off-by: Sinan Kaya <okaya@codeaurora.org>
> ---
>  Documentation/admin-guide/kernel-parameters.txt |  2 +-
>  arch/x86/include/asm/pci-direct.h               |  5 ---
>  arch/x86/kernel/setup.c                         |  5 ---
>  arch/x86/pci/common.c                           |  4 --
>  arch/x86/pci/early.c                            | 50 -------------------------
>  drivers/pci/pci.c                               |  4 ++
>  drivers/pci/pci.h                               |  2 +-
>  drivers/pci/probe.c                             | 19 ++++++++++
>  8 files changed, 25 insertions(+), 66 deletions(-)

Any feedback on the direction?

-- 
Sinan Kaya
Qualcomm Datacenter Technologies, Inc. as an affiliate of Qualcomm Technologies, Inc.
Qualcomm Technologies, Inc. is a member of the Code Aurora Forum, a Linux Foundation Collaborative Project.

Re: [PATCH] PCI: move early dump functionality from x86 arch into the common code

[Sinan Kaya]

On 5/30/2018 12:34 AM, Sinan Kaya wrote:
> Move early dump functionality into common code so that it is available for
> all archtiectures. No need to carry arch specific reads around as the read
> hooks are already initialized by the time pci_setup_device() is getting
> called during scan.
> 
> Signed-off-by: Sinan Kaya <okaya@codeaurora.org>
> ---
>  Documentation/admin-guide/kernel-parameters.txt |  2 +-
>  arch/x86/include/asm/pci-direct.h               |  5 ---
>  arch/x86/kernel/setup.c                         |  5 ---
>  arch/x86/pci/common.c                           |  4 --
>  arch/x86/pci/early.c                            | 50 -------------------------
>  drivers/pci/pci.c                               |  4 ++
>  drivers/pci/pci.h                               |  2 +-
>  drivers/pci/probe.c                             | 19 ++++++++++
>  8 files changed, 25 insertions(+), 66 deletions(-)

Any feedback on the direction?

-- 
Sinan Kaya
Qualcomm Datacenter Technologies, Inc. as an affiliate of Qualcomm Technologies, Inc.
Qualcomm Technologies, Inc. is a member of the Code Aurora Forum, a Linux Foundation Collaborative Project.
--
To unsubscribe from this list: send the line "unsubscribe linux-doc" in
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Re: [PATCH] PCI: move early dump functionality from x86 arch into the common code

[Sinan Kaya]

On 5/30/2018 12:34 AM, Sinan Kaya wrote:
> Move early dump functionality into common code so that it is available for
> all archtiectures. No need to carry arch specific reads around as the read
> hooks are already initialized by the time pci_setup_device() is getting
> called during scan.
> 
> Signed-off-by: Sinan Kaya <okaya@codeaurora.org>
> ---
>  Documentation/admin-guide/kernel-parameters.txt |  2 +-
>  arch/x86/include/asm/pci-direct.h               |  5 ---
>  arch/x86/kernel/setup.c                         |  5 ---
>  arch/x86/pci/common.c                           |  4 --
>  arch/x86/pci/early.c                            | 50 -------------------------
>  drivers/pci/pci.c                               |  4 ++
>  drivers/pci/pci.h                               |  2 +-
>  drivers/pci/probe.c                             | 19 ++++++++++
>  8 files changed, 25 insertions(+), 66 deletions(-)

Any feedback on the direction?

-- 
Sinan Kaya
Qualcomm Datacenter Technologies, Inc. as an affiliate of Qualcomm Technologies, Inc.
Qualcomm Technologies, Inc. is a member of the Code Aurora Forum, a Linux Foundation Collaborative Project.

_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

[PATCH] PCI: move early dump functionality from x86 arch into the common code

[Sinan Kaya]

On 5/30/2018 12:34 AM, Sinan Kaya wrote:
> Move early dump functionality into common code so that it is available for
> all archtiectures. No need to carry arch specific reads around as the read
> hooks are already initialized by the time pci_setup_device() is getting
> called during scan.
> 
> Signed-off-by: Sinan Kaya <okaya@codeaurora.org>
> ---
>  Documentation/admin-guide/kernel-parameters.txt |  2 +-
>  arch/x86/include/asm/pci-direct.h               |  5 ---
>  arch/x86/kernel/setup.c                         |  5 ---
>  arch/x86/pci/common.c                           |  4 --
>  arch/x86/pci/early.c                            | 50 -------------------------
>  drivers/pci/pci.c                               |  4 ++
>  drivers/pci/pci.h                               |  2 +-
>  drivers/pci/probe.c                             | 19 ++++++++++
>  8 files changed, 25 insertions(+), 66 deletions(-)

Any feedback on the direction?

-- 
Sinan Kaya
Qualcomm Datacenter Technologies, Inc. as an affiliate of Qualcomm Technologies, Inc.
Qualcomm Technologies, Inc. is a member of the Code Aurora Forum, a Linux Foundation Collaborative Project.

Re: [PATCH] PCI: move early dump functionality from x86 arch into the common code

[Andy Shevchenko]

On Wed, May 30, 2018 at 7:34 AM, Sinan Kaya <okaya@codeaurora.org> wrote:
> Move early dump functionality into common code so that it is available for
> all archtiectures. No need to carry arch specific reads around as the read
> hooks are already initialized by the time pci_setup_device() is getting
> called during scan.

>  /* If set, the PCIe ATS capability will not be used. */
>  static bool pcie_ats_disabled;
>
> +bool pci_early_dump;
> +

I didn't check above these, but maybe a good idea to add one line
comment what is this about?


>  extern const unsigned char pcie_link_speed[];
> -
> +extern bool pci_early_dump;
>  bool pcie_cap_has_lnkctl(const struct pci_dev *dev);
>

Hmm... I would rather not attach this line to some function declarations.

> +static void early_dump_pci_device(struct pci_dev *pdev)
> +{
> +       u32 value[256 / 4];
> +       int i;
> +
> +       dev_info(&pdev->dev, "pci 0000:%02x:%02x.%d config space:\n",
> +                pdev->bus->number, PCI_SLOT(pdev->devfn),
> +                PCI_FUNC(pdev->devfn));

Shouldn't be this changed to pci_info() ?

> +
> +       for (i = 0; i < 256; i += 4)
> +               pci_read_config_dword(pdev, i, &value[i / 4]);
> +
> +       print_hex_dump(KERN_INFO, "", DUMP_PREFIX_OFFSET, 16, 1, value,
> +                      256, false);
> +}

-- 
With Best Regards,
Andy Shevchenko

Re: [PATCH] PCI: move early dump functionality from x86 arch into the common code

[Andy Shevchenko]

On Wed, May 30, 2018 at 7:34 AM, Sinan Kaya <okaya@codeaurora.org> wrote:
> Move early dump functionality into common code so that it is available for
> all archtiectures. No need to carry arch specific reads around as the read
> hooks are already initialized by the time pci_setup_device() is getting
> called during scan.

>  /* If set, the PCIe ATS capability will not be used. */
>  static bool pcie_ats_disabled;
>
> +bool pci_early_dump;
> +

I didn't check above these, but maybe a good idea to add one line
comment what is this about?


>  extern const unsigned char pcie_link_speed[];
> -
> +extern bool pci_early_dump;
>  bool pcie_cap_has_lnkctl(const struct pci_dev *dev);
>

Hmm... I would rather not attach this line to some function declarations.

> +static void early_dump_pci_device(struct pci_dev *pdev)
> +{
> +       u32 value[256 / 4];
> +       int i;
> +
> +       dev_info(&pdev->dev, "pci 0000:%02x:%02x.%d config space:\n",
> +                pdev->bus->number, PCI_SLOT(pdev->devfn),
> +                PCI_FUNC(pdev->devfn));

Shouldn't be this changed to pci_info() ?

> +
> +       for (i = 0; i < 256; i += 4)
> +               pci_read_config_dword(pdev, i, &value[i / 4]);
> +
> +       print_hex_dump(KERN_INFO, "", DUMP_PREFIX_OFFSET, 16, 1, value,
> +                      256, false);
> +}

-- 
With Best Regards,
Andy Shevchenko

Re: [PATCH] PCI: move early dump functionality from x86 arch into the common code

[Andy Shevchenko]

On Wed, May 30, 2018 at 7:34 AM, Sinan Kaya <okaya@codeaurora.org> wrote:
> Move early dump functionality into common code so that it is available for
> all archtiectures. No need to carry arch specific reads around as the read
> hooks are already initialized by the time pci_setup_device() is getting
> called during scan.

>  /* If set, the PCIe ATS capability will not be used. */
>  static bool pcie_ats_disabled;
>
> +bool pci_early_dump;
> +

I didn't check above these, but maybe a good idea to add one line
comment what is this about?


>  extern const unsigned char pcie_link_speed[];
> -
> +extern bool pci_early_dump;
>  bool pcie_cap_has_lnkctl(const struct pci_dev *dev);
>

Hmm... I would rather not attach this line to some function declarations.

> +static void early_dump_pci_device(struct pci_dev *pdev)
> +{
> +       u32 value[256 / 4];
> +       int i;
> +
> +       dev_info(&pdev->dev, "pci 0000:%02x:%02x.%d config space:\n",
> +                pdev->bus->number, PCI_SLOT(pdev->devfn),
> +                PCI_FUNC(pdev->devfn));

Shouldn't be this changed to pci_info() ?

> +
> +       for (i = 0; i < 256; i += 4)
> +               pci_read_config_dword(pdev, i, &value[i / 4]);
> +
> +       print_hex_dump(KERN_INFO, "", DUMP_PREFIX_OFFSET, 16, 1, value,
> +                      256, false);
> +}

-- 
With Best Regards,
Andy Shevchenko
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Re: [PATCH] PCI: move early dump functionality from x86 arch into the common code

[Andy Shevchenko]

On Wed, May 30, 2018 at 7:34 AM, Sinan Kaya <okaya@codeaurora.org> wrote:
> Move early dump functionality into common code so that it is available for
> all archtiectures. No need to carry arch specific reads around as the read
> hooks are already initialized by the time pci_setup_device() is getting
> called during scan.

>  /* If set, the PCIe ATS capability will not be used. */
>  static bool pcie_ats_disabled;
>
> +bool pci_early_dump;
> +

I didn't check above these, but maybe a good idea to add one line
comment what is this about?


>  extern const unsigned char pcie_link_speed[];
> -
> +extern bool pci_early_dump;
>  bool pcie_cap_has_lnkctl(const struct pci_dev *dev);
>

Hmm... I would rather not attach this line to some function declarations.

> +static void early_dump_pci_device(struct pci_dev *pdev)
> +{
> +       u32 value[256 / 4];
> +       int i;
> +
> +       dev_info(&pdev->dev, "pci 0000:%02x:%02x.%d config space:\n",
> +                pdev->bus->number, PCI_SLOT(pdev->devfn),
> +                PCI_FUNC(pdev->devfn));

Shouldn't be this changed to pci_info() ?

> +
> +       for (i = 0; i < 256; i += 4)
> +               pci_read_config_dword(pdev, i, &value[i / 4]);
> +
> +       print_hex_dump(KERN_INFO, "", DUMP_PREFIX_OFFSET, 16, 1, value,
> +                      256, false);
> +}

-- 
With Best Regards,
Andy Shevchenko

_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

[PATCH] PCI: move early dump functionality from x86 arch into the common code

[Andy Shevchenko]

On Wed, May 30, 2018 at 7:34 AM, Sinan Kaya <okaya@codeaurora.org> wrote:
> Move early dump functionality into common code so that it is available for
> all archtiectures. No need to carry arch specific reads around as the read
> hooks are already initialized by the time pci_setup_device() is getting
> called during scan.

>  /* If set, the PCIe ATS capability will not be used. */
>  static bool pcie_ats_disabled;
>
> +bool pci_early_dump;
> +

I didn't check above these, but maybe a good idea to add one line
comment what is this about?


>  extern const unsigned char pcie_link_speed[];
> -
> +extern bool pci_early_dump;
>  bool pcie_cap_has_lnkctl(const struct pci_dev *dev);
>

Hmm... I would rather not attach this line to some function declarations.

> +static void early_dump_pci_device(struct pci_dev *pdev)
> +{
> +       u32 value[256 / 4];
> +       int i;
> +
> +       dev_info(&pdev->dev, "pci 0000:%02x:%02x.%d config space:\n",
> +                pdev->bus->number, PCI_SLOT(pdev->devfn),
> +                PCI_FUNC(pdev->devfn));

Shouldn't be this changed to pci_info() ?

> +
> +       for (i = 0; i < 256; i += 4)
> +               pci_read_config_dword(pdev, i, &value[i / 4]);
> +
> +       print_hex_dump(KERN_INFO, "", DUMP_PREFIX_OFFSET, 16, 1, value,
> +                      256, false);
> +}

-- 
With Best Regards,
Andy Shevchenko

Re: [PATCH] PCI: move early dump functionality from x86 arch into the common code

[Sinan Kaya]

On 6/1/2018 11:02 AM, Andy Shevchenko wrote:
> On Wed, May 30, 2018 at 7:34 AM, Sinan Kaya <okaya@codeaurora.org> wrote:
>> Move early dump functionality into common code so that it is available for
>> all archtiectures. No need to carry arch specific reads around as the read
>> hooks are already initialized by the time pci_setup_device() is getting
>> called during scan.
> 
>>  /* If set, the PCIe ATS capability will not be used. */
>>  static bool pcie_ats_disabled;
>>
>> +bool pci_early_dump;
>> +
> 
> I didn't check above these, but maybe a good idea to add one line
> comment what is this about?

This was discussed here: 

https://www.spinics.net/lists/linux-pci/msg72859.html

> 
> 
>>  extern const unsigned char pcie_link_speed[];
>> -
>> +extern bool pci_early_dump;
>>  bool pcie_cap_has_lnkctl(const struct pci_dev *dev);
>>
> 
> Hmm... I would rather not attach this line to some function declarations.

Sure

> 
>> +static void early_dump_pci_device(struct pci_dev *pdev)
>> +{
>> +       u32 value[256 / 4];
>> +       int i;
>> +
>> +       dev_info(&pdev->dev, "pci 0000:%02x:%02x.%d config space:\n",
>> +                pdev->bus->number, PCI_SLOT(pdev->devfn),
>> +                PCI_FUNC(pdev->devfn));
> 
> Shouldn't be this changed to pci_info() ?

Yeah, I need to get used to pci_info().

> 
>> +
>> +       for (i = 0; i < 256; i += 4)
>> +               pci_read_config_dword(pdev, i, &value[i / 4]);
>> +
>> +       print_hex_dump(KERN_INFO, "", DUMP_PREFIX_OFFSET, 16, 1, value,
>> +                      256, false);
>> +}
> 


-- 
Sinan Kaya
Qualcomm Datacenter Technologies, Inc. as an affiliate of Qualcomm Technologies, Inc.
Qualcomm Technologies, Inc. is a member of the Code Aurora Forum, a Linux Foundation Collaborative Project.

Re: [PATCH] PCI: move early dump functionality from x86 arch into the common code

[Sinan Kaya]

On 6/1/2018 11:02 AM, Andy Shevchenko wrote:
> On Wed, May 30, 2018 at 7:34 AM, Sinan Kaya <okaya@codeaurora.org> wrote:
>> Move early dump functionality into common code so that it is available for
>> all archtiectures. No need to carry arch specific reads around as the read
>> hooks are already initialized by the time pci_setup_device() is getting
>> called during scan.
> 
>>  /* If set, the PCIe ATS capability will not be used. */
>>  static bool pcie_ats_disabled;
>>
>> +bool pci_early_dump;
>> +
> 
> I didn't check above these, but maybe a good idea to add one line
> comment what is this about?

This was discussed here: 

https://www.spinics.net/lists/linux-pci/msg72859.html

> 
> 
>>  extern const unsigned char pcie_link_speed[];
>> -
>> +extern bool pci_early_dump;
>>  bool pcie_cap_has_lnkctl(const struct pci_dev *dev);
>>
> 
> Hmm... I would rather not attach this line to some function declarations.

Sure

> 
>> +static void early_dump_pci_device(struct pci_dev *pdev)
>> +{
>> +       u32 value[256 / 4];
>> +       int i;
>> +
>> +       dev_info(&pdev->dev, "pci 0000:%02x:%02x.%d config space:\n",
>> +                pdev->bus->number, PCI_SLOT(pdev->devfn),
>> +                PCI_FUNC(pdev->devfn));
> 
> Shouldn't be this changed to pci_info() ?

Yeah, I need to get used to pci_info().

> 
>> +
>> +       for (i = 0; i < 256; i += 4)
>> +               pci_read_config_dword(pdev, i, &value[i / 4]);
>> +
>> +       print_hex_dump(KERN_INFO, "", DUMP_PREFIX_OFFSET, 16, 1, value,
>> +                      256, false);
>> +}
> 


-- 
Sinan Kaya
Qualcomm Datacenter Technologies, Inc. as an affiliate of Qualcomm Technologies, Inc.
Qualcomm Technologies, Inc. is a member of the Code Aurora Forum, a Linux Foundation Collaborative Project.

Re: [PATCH] PCI: move early dump functionality from x86 arch into the common code

[Sinan Kaya]

On 6/1/2018 11:02 AM, Andy Shevchenko wrote:
> On Wed, May 30, 2018 at 7:34 AM, Sinan Kaya <okaya@codeaurora.org> wrote:
>> Move early dump functionality into common code so that it is available for
>> all archtiectures. No need to carry arch specific reads around as the read
>> hooks are already initialized by the time pci_setup_device() is getting
>> called during scan.
> 
>>  /* If set, the PCIe ATS capability will not be used. */
>>  static bool pcie_ats_disabled;
>>
>> +bool pci_early_dump;
>> +
> 
> I didn't check above these, but maybe a good idea to add one line
> comment what is this about?

This was discussed here: 

https://www.spinics.net/lists/linux-pci/msg72859.html

> 
> 
>>  extern const unsigned char pcie_link_speed[];
>> -
>> +extern bool pci_early_dump;
>>  bool pcie_cap_has_lnkctl(const struct pci_dev *dev);
>>
> 
> Hmm... I would rather not attach this line to some function declarations.

Sure

> 
>> +static void early_dump_pci_device(struct pci_dev *pdev)
>> +{
>> +       u32 value[256 / 4];
>> +       int i;
>> +
>> +       dev_info(&pdev->dev, "pci 0000:%02x:%02x.%d config space:\n",
>> +                pdev->bus->number, PCI_SLOT(pdev->devfn),
>> +                PCI_FUNC(pdev->devfn));
> 
> Shouldn't be this changed to pci_info() ?

Yeah, I need to get used to pci_info().

> 
>> +
>> +       for (i = 0; i < 256; i += 4)
>> +               pci_read_config_dword(pdev, i, &value[i / 4]);
>> +
>> +       print_hex_dump(KERN_INFO, "", DUMP_PREFIX_OFFSET, 16, 1, value,
>> +                      256, false);
>> +}
> 


-- 
Sinan Kaya
Qualcomm Datacenter Technologies, Inc. as an affiliate of Qualcomm Technologies, Inc.
Qualcomm Technologies, Inc. is a member of the Code Aurora Forum, a Linux Foundation Collaborative Project.
--
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

Re: [PATCH] PCI: move early dump functionality from x86 arch into the common code

[Sinan Kaya]

On 6/1/2018 11:02 AM, Andy Shevchenko wrote:
> On Wed, May 30, 2018 at 7:34 AM, Sinan Kaya <okaya@codeaurora.org> wrote:
>> Move early dump functionality into common code so that it is available for
>> all archtiectures. No need to carry arch specific reads around as the read
>> hooks are already initialized by the time pci_setup_device() is getting
>> called during scan.
> 
>>  /* If set, the PCIe ATS capability will not be used. */
>>  static bool pcie_ats_disabled;
>>
>> +bool pci_early_dump;
>> +
> 
> I didn't check above these, but maybe a good idea to add one line
> comment what is this about?

This was discussed here: 

https://www.spinics.net/lists/linux-pci/msg72859.html

> 
> 
>>  extern const unsigned char pcie_link_speed[];
>> -
>> +extern bool pci_early_dump;
>>  bool pcie_cap_has_lnkctl(const struct pci_dev *dev);
>>
> 
> Hmm... I would rather not attach this line to some function declarations.

Sure

> 
>> +static void early_dump_pci_device(struct pci_dev *pdev)
>> +{
>> +       u32 value[256 / 4];
>> +       int i;
>> +
>> +       dev_info(&pdev->dev, "pci 0000:%02x:%02x.%d config space:\n",
>> +                pdev->bus->number, PCI_SLOT(pdev->devfn),
>> +                PCI_FUNC(pdev->devfn));
> 
> Shouldn't be this changed to pci_info() ?

Yeah, I need to get used to pci_info().

> 
>> +
>> +       for (i = 0; i < 256; i += 4)
>> +               pci_read_config_dword(pdev, i, &value[i / 4]);
>> +
>> +       print_hex_dump(KERN_INFO, "", DUMP_PREFIX_OFFSET, 16, 1, value,
>> +                      256, false);
>> +}
> 


-- 
Sinan Kaya
Qualcomm Datacenter Technologies, Inc. as an affiliate of Qualcomm Technologies, Inc.
Qualcomm Technologies, Inc. is a member of the Code Aurora Forum, a Linux Foundation Collaborative Project.

_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

[PATCH] PCI: move early dump functionality from x86 arch into the common code

[Sinan Kaya]

On 6/1/2018 11:02 AM, Andy Shevchenko wrote:
> On Wed, May 30, 2018 at 7:34 AM, Sinan Kaya <okaya@codeaurora.org> wrote:
>> Move early dump functionality into common code so that it is available for
>> all archtiectures. No need to carry arch specific reads around as the read
>> hooks are already initialized by the time pci_setup_device() is getting
>> called during scan.
> 
>>  /* If set, the PCIe ATS capability will not be used. */
>>  static bool pcie_ats_disabled;
>>
>> +bool pci_early_dump;
>> +
> 
> I didn't check above these, but maybe a good idea to add one line
> comment what is this about?

This was discussed here: 

https://www.spinics.net/lists/linux-pci/msg72859.html

> 
> 
>>  extern const unsigned char pcie_link_speed[];
>> -
>> +extern bool pci_early_dump;
>>  bool pcie_cap_has_lnkctl(const struct pci_dev *dev);
>>
> 
> Hmm... I would rather not attach this line to some function declarations.

Sure

> 
>> +static void early_dump_pci_device(struct pci_dev *pdev)
>> +{
>> +       u32 value[256 / 4];
>> +       int i;
>> +
>> +       dev_info(&pdev->dev, "pci 0000:%02x:%02x.%d config space:\n",
>> +                pdev->bus->number, PCI_SLOT(pdev->devfn),
>> +                PCI_FUNC(pdev->devfn));
> 
> Shouldn't be this changed to pci_info() ?

Yeah, I need to get used to pci_info().

> 
>> +
>> +       for (i = 0; i < 256; i += 4)
>> +               pci_read_config_dword(pdev, i, &value[i / 4]);
>> +
>> +       print_hex_dump(KERN_INFO, "", DUMP_PREFIX_OFFSET, 16, 1, value,
>> +                      256, false);
>> +}
> 


-- 
Sinan Kaya
Qualcomm Datacenter Technologies, Inc. as an affiliate of Qualcomm Technologies, Inc.
Qualcomm Technologies, Inc. is a member of the Code Aurora Forum, a Linux Foundation Collaborative Project.

Re: [PATCH] PCI: move early dump functionality from x86 arch into the common code

[Andy Shevchenko]

On Fri, Jun 1, 2018 at 6:06 PM, Sinan Kaya <okaya@codeaurora.org> wrote:
> On 6/1/2018 11:02 AM, Andy Shevchenko wrote:
>> On Wed, May 30, 2018 at 7:34 AM, Sinan Kaya <okaya@codeaurora.org> wrote:
>>> Move early dump functionality into common code so that it is available for
>>> all archtiectures. No need to carry arch specific reads around as the read
>>> hooks are already initialized by the time pci_setup_device() is getting
>>> called during scan.
>>
>>>  /* If set, the PCIe ATS capability will not be used. */
>>>  static bool pcie_ats_disabled;
>>>
>>> +bool pci_early_dump;
>>> +
>>
>> I didn't check above these, but maybe a good idea to add one line
>> comment what is this about?
>
> This was discussed here:
>
> https://www.spinics.net/lists/linux-pci/msg72859.html

I understand what is it. What I'm pointing is the variable in the
source without any comment. In the context you have in diff previous
one has a comment.


-- 
With Best Regards,
Andy Shevchenko

Re: [PATCH] PCI: move early dump functionality from x86 arch into the common code

[Andy Shevchenko]

On Fri, Jun 1, 2018 at 6:06 PM, Sinan Kaya <okaya@codeaurora.org> wrote:
> On 6/1/2018 11:02 AM, Andy Shevchenko wrote:
>> On Wed, May 30, 2018 at 7:34 AM, Sinan Kaya <okaya@codeaurora.org> wrote:
>>> Move early dump functionality into common code so that it is available for
>>> all archtiectures. No need to carry arch specific reads around as the read
>>> hooks are already initialized by the time pci_setup_device() is getting
>>> called during scan.
>>
>>>  /* If set, the PCIe ATS capability will not be used. */
>>>  static bool pcie_ats_disabled;
>>>
>>> +bool pci_early_dump;
>>> +
>>
>> I didn't check above these, but maybe a good idea to add one line
>> comment what is this about?
>
> This was discussed here:
>
> https://www.spinics.net/lists/linux-pci/msg72859.html

I understand what is it. What I'm pointing is the variable in the
source without any comment. In the context you have in diff previous
one has a comment.


-- 
With Best Regards,
Andy Shevchenko

Re: [PATCH] PCI: move early dump functionality from x86 arch into the common code

[Andy Shevchenko]

On Fri, Jun 1, 2018 at 6:06 PM, Sinan Kaya <okaya@codeaurora.org> wrote:
> On 6/1/2018 11:02 AM, Andy Shevchenko wrote:
>> On Wed, May 30, 2018 at 7:34 AM, Sinan Kaya <okaya@codeaurora.org> wrote:
>>> Move early dump functionality into common code so that it is available for
>>> all archtiectures. No need to carry arch specific reads around as the read
>>> hooks are already initialized by the time pci_setup_device() is getting
>>> called during scan.
>>
>>>  /* If set, the PCIe ATS capability will not be used. */
>>>  static bool pcie_ats_disabled;
>>>
>>> +bool pci_early_dump;
>>> +
>>
>> I didn't check above these, but maybe a good idea to add one line
>> comment what is this about?
>
> This was discussed here:
>
> https://www.spinics.net/lists/linux-pci/msg72859.html

I understand what is it. What I'm pointing is the variable in the
source without any comment. In the context you have in diff previous
one has a comment.


-- 
With Best Regards,
Andy Shevchenko
--
To unsubscribe from this list: send the line "unsubscribe linux-doc" in
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More majordomo info at  http://vger.kernel.org/majordomo-info.html

Re: [PATCH] PCI: move early dump functionality from x86 arch into the common code

[Andy Shevchenko]

On Fri, Jun 1, 2018 at 6:06 PM, Sinan Kaya <okaya@codeaurora.org> wrote:
> On 6/1/2018 11:02 AM, Andy Shevchenko wrote:
>> On Wed, May 30, 2018 at 7:34 AM, Sinan Kaya <okaya@codeaurora.org> wrote:
>>> Move early dump functionality into common code so that it is available for
>>> all archtiectures. No need to carry arch specific reads around as the read
>>> hooks are already initialized by the time pci_setup_device() is getting
>>> called during scan.
>>
>>>  /* If set, the PCIe ATS capability will not be used. */
>>>  static bool pcie_ats_disabled;
>>>
>>> +bool pci_early_dump;
>>> +
>>
>> I didn't check above these, but maybe a good idea to add one line
>> comment what is this about?
>
> This was discussed here:
>
> https://www.spinics.net/lists/linux-pci/msg72859.html

I understand what is it. What I'm pointing is the variable in the
source without any comment. In the context you have in diff previous
one has a comment.


-- 
With Best Regards,
Andy Shevchenko

_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

[PATCH] PCI: move early dump functionality from x86 arch into the common code

[Andy Shevchenko]

On Fri, Jun 1, 2018 at 6:06 PM, Sinan Kaya <okaya@codeaurora.org> wrote:
> On 6/1/2018 11:02 AM, Andy Shevchenko wrote:
>> On Wed, May 30, 2018 at 7:34 AM, Sinan Kaya <okaya@codeaurora.org> wrote:
>>> Move early dump functionality into common code so that it is available for
>>> all archtiectures. No need to carry arch specific reads around as the read
>>> hooks are already initialized by the time pci_setup_device() is getting
>>> called during scan.
>>
>>>  /* If set, the PCIe ATS capability will not be used. */
>>>  static bool pcie_ats_disabled;
>>>
>>> +bool pci_early_dump;
>>> +
>>
>> I didn't check above these, but maybe a good idea to add one line
>> comment what is this about?
>
> This was discussed here:
>
> https://www.spinics.net/lists/linux-pci/msg72859.html

I understand what is it. What I'm pointing is the variable in the
source without any comment. In the context you have in diff previous
one has a comment.


-- 
With Best Regards,
Andy Shevchenko

Re: [PATCH] PCI: move early dump functionality from x86 arch into the common code

[Sinan Kaya]

On 6/1/2018 11:24 AM, Andy Shevchenko wrote:
>> This was discussed here:
>>
>> https://www.spinics.net/lists/linux-pci/msg72859.html
> I understand what is it. What I'm pointing is the variable in the
> source without any comment. In the context you have in diff previous
> one has a comment.

oh, ok. I can take care of that too.

-- 
Sinan Kaya
Qualcomm Datacenter Technologies, Inc. as an affiliate of Qualcomm Technologies, Inc.
Qualcomm Technologies, Inc. is a member of the Code Aurora Forum, a Linux Foundation Collaborative Project.

Re: [PATCH] PCI: move early dump functionality from x86 arch into the common code

[Sinan Kaya]

On 6/1/2018 11:24 AM, Andy Shevchenko wrote:
>> This was discussed here:
>>
>> https://www.spinics.net/lists/linux-pci/msg72859.html
> I understand what is it. What I'm pointing is the variable in the
> source without any comment. In the context you have in diff previous
> one has a comment.

oh, ok. I can take care of that too.

-- 
Sinan Kaya
Qualcomm Datacenter Technologies, Inc. as an affiliate of Qualcomm Technologies, Inc.
Qualcomm Technologies, Inc. is a member of the Code Aurora Forum, a Linux Foundation Collaborative Project.

Re: [PATCH] PCI: move early dump functionality from x86 arch into the common code

[Sinan Kaya]

On 6/1/2018 11:24 AM, Andy Shevchenko wrote:
>> This was discussed here:
>>
>> https://www.spinics.net/lists/linux-pci/msg72859.html
> I understand what is it. What I'm pointing is the variable in the
> source without any comment. In the context you have in diff previous
> one has a comment.

oh, ok. I can take care of that too.

-- 
Sinan Kaya
Qualcomm Datacenter Technologies, Inc. as an affiliate of Qualcomm Technologies, Inc.
Qualcomm Technologies, Inc. is a member of the Code Aurora Forum, a Linux Foundation Collaborative Project.
--
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

Re: [PATCH] PCI: move early dump functionality from x86 arch into the common code

[Sinan Kaya]

On 6/1/2018 11:24 AM, Andy Shevchenko wrote:
>> This was discussed here:
>>
>> https://www.spinics.net/lists/linux-pci/msg72859.html
> I understand what is it. What I'm pointing is the variable in the
> source without any comment. In the context you have in diff previous
> one has a comment.

oh, ok. I can take care of that too.

-- 
Sinan Kaya
Qualcomm Datacenter Technologies, Inc. as an affiliate of Qualcomm Technologies, Inc.
Qualcomm Technologies, Inc. is a member of the Code Aurora Forum, a Linux Foundation Collaborative Project.

_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

[PATCH] PCI: move early dump functionality from x86 arch into the common code

[Sinan Kaya]

On 6/1/2018 11:24 AM, Andy Shevchenko wrote:
>> This was discussed here:
>>
>> https://www.spinics.net/lists/linux-pci/msg72859.html
> I understand what is it. What I'm pointing is the variable in the
> source without any comment. In the context you have in diff previous
> one has a comment.

oh, ok. I can take care of that too.

-- 
Sinan Kaya
Qualcomm Datacenter Technologies, Inc. as an affiliate of Qualcomm Technologies, Inc.
Qualcomm Technologies, Inc. is a member of the Code Aurora Forum, a Linux Foundation Collaborative Project.