[PATCH V2 01/29] alpha/PCI: deprecate pci_get_bus_and_slot()

[PATCH V2 01/29] alpha/PCI: deprecate pci_get_bus_and_slot()

[Sinan Kaya]

pci_get_bus_and_slot() is restrictive such that it assumes domain=0 as
where a PCI device is present. This restricts the device drivers to be
reused for other domain numbers.

Use pci_get_domain_bus_and_slot() with a domain number of 0 where we can't
extract the domain number. Other places, use the actual domain number from
the device.

Signed-off-by: Sinan Kaya <okaya@codeaurora.org>
---
 arch/alpha/kernel/pci.c          | 2 +-
 arch/alpha/kernel/sys_nautilus.c | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/alpha/kernel/pci.c b/arch/alpha/kernel/pci.c
index 08235bb..e866daf 100644
--- a/arch/alpha/kernel/pci.c
+++ b/arch/alpha/kernel/pci.c
@@ -416,7 +416,7 @@ struct resource * __init
 		if (bus == 0 && dfn == 0) {
 			hose = pci_isa_hose;
 		} else {
-			dev = pci_get_bus_and_slot(bus, dfn);
+			dev = pci_get_domain_bus_and_slot(0, bus, dfn);
 			if (!dev)
 				return -ENODEV;
 			hose = dev->sysdata;
diff --git a/arch/alpha/kernel/sys_nautilus.c b/arch/alpha/kernel/sys_nautilus.c
index 239dc0e..ff4f54b 100644
--- a/arch/alpha/kernel/sys_nautilus.c
+++ b/arch/alpha/kernel/sys_nautilus.c
@@ -237,7 +237,7 @@
 	bus = hose->bus = bridge->bus;
 	pcibios_claim_one_bus(bus);
 
-	irongate = pci_get_bus_and_slot(0, 0);
+	irongate = pci_get_domain_bus_and_slot(pci_domain_nr(bus), 0, 0);
 	bus->self = irongate;
 	bus->resource[0] = &irongate_io;
 	bus->resource[1] = &irongate_mem;
-- 
1.9.1

[PATCH V2 02/29] powerpc/PCI: deprecate pci_get_bus_and_slot()

[Sinan Kaya]

pci_get_bus_and_slot() is restrictive such that it assumes domain=0 as
where a PCI device is present. This restricts the device drivers to be
reused for other domain numbers.

Getting ready to remove pci_get_bus_and_slot() function in favor of
pci_get_domain_bus_and_slot().

Use pci_get_domain_bus_and_slot() with a domain number of 0 as the code
is not ready to consume multiple domains and existing code used domain
number 0.

Signed-off-by: Sinan Kaya <okaya@codeaurora.org>
---
 arch/powerpc/kernel/pci_32.c              | 3 ++-
 arch/powerpc/platforms/powermac/feature.c | 2 +-
 arch/powerpc/sysdev/mv64x60_pci.c         | 4 ++--
 3 files changed, 5 insertions(+), 4 deletions(-)

diff --git a/arch/powerpc/kernel/pci_32.c b/arch/powerpc/kernel/pci_32.c
index 1d817f4..85ad2f7 100644
--- a/arch/powerpc/kernel/pci_32.c
+++ b/arch/powerpc/kernel/pci_32.c
@@ -96,7 +96,8 @@
 		reg = of_get_property(node, "reg", NULL);
 		if (!reg)
 			continue;
-		dev = pci_get_bus_and_slot(pci_bus, ((reg[0] >> 8) & 0xff));
+		dev = pci_get_domain_bus_and_slot(0, pci_bus,
+						  ((reg[0] >> 8) & 0xff));
 		if (!dev || !dev->subordinate) {
 			pci_dev_put(dev);
 			continue;
diff --git a/arch/powerpc/platforms/powermac/feature.c b/arch/powerpc/platforms/powermac/feature.c
index 9e3f39d..ed8b166 100644
--- a/arch/powerpc/platforms/powermac/feature.c
+++ b/arch/powerpc/platforms/powermac/feature.c
@@ -829,7 +829,7 @@ static long core99_scc_enable(struct device_node *node, long param, long value)
 
 	if (value) {
 		if (pci_device_from_OF_node(node, &pbus, &pid) == 0)
-			pdev = pci_get_bus_and_slot(pbus, pid);
+			pdev = pci_get_domain_bus_and_slot(0, pbus, pid);
 		if (pdev == NULL)
 			return 0;
 		rc = pci_enable_device(pdev);
diff --git a/arch/powerpc/sysdev/mv64x60_pci.c b/arch/powerpc/sysdev/mv64x60_pci.c
index d52b3b8..6fe9104 100644
--- a/arch/powerpc/sysdev/mv64x60_pci.c
+++ b/arch/powerpc/sysdev/mv64x60_pci.c
@@ -37,7 +37,7 @@ static ssize_t mv64x60_hs_reg_read(struct file *filp, struct kobject *kobj,
 	if (count < MV64X60_VAL_LEN_MAX)
 		return -EINVAL;
 
-	phb = pci_get_bus_and_slot(0, PCI_DEVFN(0, 0));
+	phb = pci_get_domain_bus_and_slot(0, 0, PCI_DEVFN(0, 0));
 	if (!phb)
 		return -ENODEV;
 	pci_read_config_dword(phb, MV64X60_PCICFG_CPCI_HOTSWAP, &v);
@@ -61,7 +61,7 @@ static ssize_t mv64x60_hs_reg_write(struct file *filp, struct kobject *kobj,
 	if (sscanf(buf, "%i", &v) != 1)
 		return -EINVAL;
 
-	phb = pci_get_bus_and_slot(0, PCI_DEVFN(0, 0));
+	phb = pci_get_domain_bus_and_slot(0, 0, PCI_DEVFN(0, 0));
 	if (!phb)
 		return -ENODEV;
 	pci_write_config_dword(phb, MV64X60_PCICFG_CPCI_HOTSWAP, v);
-- 
1.9.1

[PATCH V2 03/29] x86/PCI: deprecate pci_get_bus_and_slot()

[Sinan Kaya]

pci_get_bus_and_slot() is restrictive such that it assumes domain=0 as
where a PCI device is present. This restricts the device drivers to be
reused for other domain numbers.

Getting ready to remove pci_get_bus_and_slot() function in favor of
pci_get_domain_bus_and_slot().

Use domain number of 0 as the domain number is not available in struct
irq_routing_table.

Signed-off-by: Sinan Kaya <okaya@codeaurora.org>
---
 arch/x86/pci/irq.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/arch/x86/pci/irq.c b/arch/x86/pci/irq.c
index 04526291..52e5510 100644
--- a/arch/x86/pci/irq.c
+++ b/arch/x86/pci/irq.c
@@ -839,7 +839,8 @@ static void __init pirq_find_router(struct irq_router *r)
 	DBG(KERN_DEBUG "PCI: Attempting to find IRQ router for [%04x:%04x]\n",
 	    rt->rtr_vendor, rt->rtr_device);
 
-	pirq_router_dev = pci_get_bus_and_slot(rt->rtr_bus, rt->rtr_devfn);
+	pirq_router_dev = pci_get_domain_bus_and_slot(0, rt->rtr_bus,
+						      rt->rtr_devfn);
 	if (!pirq_router_dev) {
 		DBG(KERN_DEBUG "PCI: Interrupt router not found at "
 			"%02x:%02x\n", rt->rtr_bus, rt->rtr_devfn);
-- 
1.9.1

[PATCH V2 04/29] ata: deprecate pci_get_bus_and_slot()

[Sinan Kaya]

pci_get_bus_and_slot() is restrictive such that it assumes domain=0 as
where a PCI device is present. This restricts the device drivers to be
reused for other domain numbers.

Getting ready to remove pci_get_bus_and_slot() function in favor of
pci_get_domain_bus_and_slot().

Use pci_get_domain_bus_and_slot() and extract the actual domain number
from the pdev passed in.

Signed-off-by: Sinan Kaya <okaya@codeaurora.org>
---
 drivers/ata/pata_ali.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/ata/pata_ali.c b/drivers/ata/pata_ali.c
index d19cd88..0b122f9 100644
--- a/drivers/ata/pata_ali.c
+++ b/drivers/ata/pata_ali.c
@@ -466,7 +466,8 @@ static void ali_init_chipset(struct pci_dev *pdev)
 			tmp |= 0x01;	/* CD_ROM enable for DMA */
 		pci_write_config_byte(pdev, 0x53, tmp);
 	}
-	north = pci_get_bus_and_slot(0, PCI_DEVFN(0,0));
+	north = pci_get_domain_bus_and_slot(pci_domain_nr(pdev->bus), 0,
+					    PCI_DEVFN(0, 0));
 	if (north && north->vendor == PCI_VENDOR_ID_AL && ali_isa_bridge) {
 		/* Configure the ALi bridge logic. For non ALi rely on BIOS.
 		   Set the south bridge enable bit */
-- 
1.9.1

[PATCH V2 05/29] agp: nvidia: deprecate pci_get_bus_and_slot()

[Sinan Kaya]

pci_get_bus_and_slot() is restrictive such that it assumes domain=0 as
where a PCI device is present. This restricts the device drivers to be
reused for other domain numbers.

Getting ready to remove pci_get_bus_and_slot() function in favor of
pci_get_domain_bus_and_slot().

Replace pci_get_bus_and_slot() with pci_get_domain_bus_and_slot()
and extract the domain number from struct pci_dev.

Signed-off-by: Sinan Kaya <okaya@codeaurora.org>
---
 drivers/char/agp/nvidia-agp.c | 12 +++++++++---
 drivers/char/agp/sworks-agp.c |  3 ++-
 2 files changed, 11 insertions(+), 4 deletions(-)

diff --git a/drivers/char/agp/nvidia-agp.c b/drivers/char/agp/nvidia-agp.c
index 828b344..623205b 100644
--- a/drivers/char/agp/nvidia-agp.c
+++ b/drivers/char/agp/nvidia-agp.c
@@ -340,11 +340,17 @@ static int agp_nvidia_probe(struct pci_dev *pdev,
 	u8 cap_ptr;
 
 	nvidia_private.dev_1 =
-		pci_get_bus_and_slot((unsigned int)pdev->bus->number, PCI_DEVFN(0, 1));
+		pci_get_domain_bus_and_slot(pci_domain_nr(pdev->bus),
+					    (unsigned int)pdev->bus->number,
+					    PCI_DEVFN(0, 1));
 	nvidia_private.dev_2 =
-		pci_get_bus_and_slot((unsigned int)pdev->bus->number, PCI_DEVFN(0, 2));
+		pci_get_domain_bus_and_slot(pci_domain_nr(pdev->bus),
+					    (unsigned int)pdev->bus->number,
+					    PCI_DEVFN(0, 2));
 	nvidia_private.dev_3 =
-		pci_get_bus_and_slot((unsigned int)pdev->bus->number, PCI_DEVFN(30, 0));
+		pci_get_domain_bus_and_slot(pci_domain_nr(pdev->bus),
+					    (unsigned int)pdev->bus->number,
+					    PCI_DEVFN(30, 0));
 
 	if (!nvidia_private.dev_1 || !nvidia_private.dev_2 || !nvidia_private.dev_3) {
 		printk(KERN_INFO PFX "Detected an NVIDIA nForce/nForce2 "
diff --git a/drivers/char/agp/sworks-agp.c b/drivers/char/agp/sworks-agp.c
index 03be4ac..4dbdd3b 100644
--- a/drivers/char/agp/sworks-agp.c
+++ b/drivers/char/agp/sworks-agp.c
@@ -474,7 +474,8 @@ static int agp_serverworks_probe(struct pci_dev *pdev,
 	}
 
 	/* Everything is on func 1 here so we are hardcoding function one */
-	bridge_dev = pci_get_bus_and_slot((unsigned int)pdev->bus->number,
+	bridge_dev = pci_get_domain_bus_and_slot(pci_domain_nr(pdev->bus),
+			(unsigned int)pdev->bus->number,
 			PCI_DEVFN(0, 1));
 	if (!bridge_dev) {
 		dev_info(&pdev->dev, "can't find secondary device\n");
-- 
1.9.1

[PATCH V2 06/29] edd: deprecate pci_get_bus_and_slot()

[Sinan Kaya]

pci_get_bus_and_slot() is restrictive such that it assumes domain=0 as
where a PCI device is present. This restricts the device drivers to be
reused for other domain numbers.

Getting ready to remove pci_get_bus_and_slot() function in favor of
pci_get_domain_bus_and_slot().

Domain number is not available in struct edd_info. Hard-coding the domain
number as 0.

Signed-off-by: Sinan Kaya <okaya@codeaurora.org>
---
 drivers/firmware/edd.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/firmware/edd.c b/drivers/firmware/edd.c
index e229576..60a8f13 100644
--- a/drivers/firmware/edd.c
+++ b/drivers/firmware/edd.c
@@ -669,10 +669,10 @@ static void edd_release(struct kobject * kobj)
 	struct edd_info *info = edd_dev_get_info(edev);
 
 	if (edd_dev_is_type(edev, "PCI") || edd_dev_is_type(edev, "XPRS")) {
-		return pci_get_bus_and_slot(info->params.interface_path.pci.bus,
-				     PCI_DEVFN(info->params.interface_path.pci.slot,
-					       info->params.interface_path.pci.
-					       function));
+		return pci_get_domain_bus_and_slot(0,
+				info->params.interface_path.pci.bus,
+				PCI_DEVFN(info->params.interface_path.pci.slot,
+				info->params.interface_path.pci.function));
 	}
 	return NULL;
 }
-- 
1.9.1

[PATCH V2 07/29] ibft: deprecate pci_get_bus_and_slot()

[Sinan Kaya]

pci_get_bus_and_slot() is restrictive such that it assumes domain=0 as
where a PCI device is present. This restricts the device drivers to be
reused for other domain numbers.

Getting ready to remove pci_get_bus_and_slot() function in favor of
pci_get_domain_bus_and_slot().

We don't search for the device in other domains than zero. This is because
on x86 platforms the BIOS executes only devices which are in domain 0.
Furthermore, the iBFT spec doesn't have a domain id field.

Signed-off-by: Sinan Kaya <okaya@codeaurora.org>
---
 drivers/firmware/iscsi_ibft.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/firmware/iscsi_ibft.c b/drivers/firmware/iscsi_ibft.c
index 14042a6..6bc8e66 100644
--- a/drivers/firmware/iscsi_ibft.c
+++ b/drivers/firmware/iscsi_ibft.c
@@ -719,8 +719,9 @@ static int __init ibft_create_kobject(struct acpi_table_ibft *header,
 		* executes only devices which are in domain 0. Furthermore, the
 		* iBFT spec doesn't have a domain id field :-(
 		*/
-		pci_dev = pci_get_bus_and_slot((nic->pci_bdf & 0xff00) >> 8,
-					       (nic->pci_bdf & 0xff));
+		pci_dev = pci_get_domain_bus_and_slot(0,
+						(nic->pci_bdf & 0xff00) >> 8,
+						(nic->pci_bdf & 0xff));
 		if (pci_dev) {
 			rc = sysfs_create_link(&boot_kobj->kobj,
 					       &pci_dev->dev.kobj, "device");
-- 
1.9.1

Re: [PATCH V2 07/29] ibft: deprecate pci_get_bus_and_slot()

[Konrad Rzeszutek Wilk]

On Wed, Nov 22, 2017 at 05:49:02PM -0500, Sinan Kaya wrote:
> pci_get_bus_and_slot() is restrictive such that it assumes domain=0 as
> where a PCI device is present. This restricts the device drivers to be
> reused for other domain numbers.
> 
> Getting ready to remove pci_get_bus_and_slot() function in favor of
> pci_get_domain_bus_and_slot().

Aha!
> 
> We don't search for the device in other domains than zero. This is because
> on x86 platforms the BIOS executes only devices which are in domain 0.
> Furthermore, the iBFT spec doesn't have a domain id field.

Acked-by: Konrad Rzeszutek Wilk <konrad@kernel.org>
> 
> Signed-off-by: Sinan Kaya <okaya@codeaurora.org>
> ---
>  drivers/firmware/iscsi_ibft.c | 5 +++--
>  1 file changed, 3 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/firmware/iscsi_ibft.c b/drivers/firmware/iscsi_ibft.c
> index 14042a6..6bc8e66 100644
> --- a/drivers/firmware/iscsi_ibft.c
> +++ b/drivers/firmware/iscsi_ibft.c
> @@ -719,8 +719,9 @@ static int __init ibft_create_kobject(struct acpi_table_ibft *header,
>  		* executes only devices which are in domain 0. Furthermore, the
>  		* iBFT spec doesn't have a domain id field :-(
>  		*/
> -		pci_dev = pci_get_bus_and_slot((nic->pci_bdf & 0xff00) >> 8,
> -					       (nic->pci_bdf & 0xff));
> +		pci_dev = pci_get_domain_bus_and_slot(0,
> +						(nic->pci_bdf & 0xff00) >> 8,
> +						(nic->pci_bdf & 0xff));
>  		if (pci_dev) {
>  			rc = sysfs_create_link(&boot_kobj->kobj,
>  					       &pci_dev->dev.kobj, "device");
> -- 
> 1.9.1
> 

[PATCH V2 08/29] drm/gma500: deprecate pci_get_bus_and_slot()

[Sinan Kaya]

pci_get_bus_and_slot() is restrictive such that it assumes domain=0 as
where a PCI device is present. This restricts the device drivers to be
reused for other domain numbers.

Getting ready to remove pci_get_bus_and_slot() function in favor of
pci_get_domain_bus_and_slot().

Add domain parameter to CDV_MSG_READ32, CDV_MSG_WRITE32, MRST_MSG_READ32,
MRST_MSG_WRITE32, MDFLD_MSG_READ32, MDFLD_MSG_WRITE32.

Extract pci_dev from struct drm_device and use pdev to find the domain
number while calling pci_get_domain_bus_and_slot().

Signed-off-by: Sinan Kaya <okaya@codeaurora.org>
---
 drivers/gpu/drm/gma500/cdv_device.c | 16 +++++++++-------
 drivers/gpu/drm/gma500/gma_device.c |  3 ++-
 drivers/gpu/drm/gma500/mid_bios.c   | 11 ++++++++---
 drivers/gpu/drm/gma500/psb_drv.c    | 10 ++++++++--
 drivers/gpu/drm/gma500/psb_drv.h    | 18 ++++++++++--------
 5 files changed, 37 insertions(+), 21 deletions(-)

diff --git a/drivers/gpu/drm/gma500/cdv_device.c b/drivers/gpu/drm/gma500/cdv_device.c
index 8745971..e967924 100644
--- a/drivers/gpu/drm/gma500/cdv_device.c
+++ b/drivers/gpu/drm/gma500/cdv_device.c
@@ -185,21 +185,22 @@ static int cdv_backlight_init(struct drm_device *dev)
  *	for this and the MID devices.
  */
 
-static inline u32 CDV_MSG_READ32(uint port, uint offset)
+static inline u32 CDV_MSG_READ32(uint domain, uint port, uint offset)
 {
 	int mcr = (0x10<<24) | (port << 16) | (offset << 8);
 	uint32_t ret_val = 0;
-	struct pci_dev *pci_root = pci_get_bus_and_slot(0, 0);
+	struct pci_dev *pci_root = pci_get_domain_bus_and_slot(domain, 0, 0);
 	pci_write_config_dword(pci_root, 0xD0, mcr);
 	pci_read_config_dword(pci_root, 0xD4, &ret_val);
 	pci_dev_put(pci_root);
 	return ret_val;
 }
 
-static inline void CDV_MSG_WRITE32(uint port, uint offset, u32 value)
+static inline void CDV_MSG_WRITE32(uint domain, uint port, uint offset,
+				   u32 value)
 {
 	int mcr = (0x11<<24) | (port << 16) | (offset << 8) | 0xF0;
-	struct pci_dev *pci_root = pci_get_bus_and_slot(0, 0);
+	struct pci_dev *pci_root = pci_get_domain_bus_and_slot(domain, 0, 0);
 	pci_write_config_dword(pci_root, 0xD4, value);
 	pci_write_config_dword(pci_root, 0xD0, mcr);
 	pci_dev_put(pci_root);
@@ -216,11 +217,12 @@ static void cdv_init_pm(struct drm_device *dev)
 {
 	struct drm_psb_private *dev_priv = dev->dev_private;
 	u32 pwr_cnt;
+	u32 domain = pci_domain_nr(dev->pdev->bus);
 	int i;
 
-	dev_priv->apm_base = CDV_MSG_READ32(PSB_PUNIT_PORT,
+	dev_priv->apm_base = CDV_MSG_READ32(domain, PSB_PUNIT_PORT,
 							PSB_APMBA) & 0xFFFF;
-	dev_priv->ospm_base = CDV_MSG_READ32(PSB_PUNIT_PORT,
+	dev_priv->ospm_base = CDV_MSG_READ32(domain, PSB_PUNIT_PORT,
 							PSB_OSPMBA) & 0xFFFF;
 
 	/* Power status */
@@ -251,7 +253,7 @@ static void cdv_errata(struct drm_device *dev)
 	 *	Bonus Launch to work around the issue, by degrading
 	 *	performance.
 	 */
-	 CDV_MSG_WRITE32(3, 0x30, 0x08027108);
+	 CDV_MSG_WRITE32(pci_domain_nr(dev->pdev->bus), 3, 0x30, 0x08027108);
 }
 
 /**
diff --git a/drivers/gpu/drm/gma500/gma_device.c b/drivers/gpu/drm/gma500/gma_device.c
index 4a295f9..30255b3 100644
--- a/drivers/gpu/drm/gma500/gma_device.c
+++ b/drivers/gpu/drm/gma500/gma_device.c
@@ -19,7 +19,8 @@
 void gma_get_core_freq(struct drm_device *dev)
 {
 	uint32_t clock;
-	struct pci_dev *pci_root = pci_get_bus_and_slot(0, 0);
+	u32 domain = pci_domain_nr(dev->pdev->bus);
+	struct pci_dev *pci_root = pci_get_domain_bus_and_slot(domain, 0, 0);
 	struct drm_psb_private *dev_priv = dev->dev_private;
 
 	/*pci_write_config_dword(pci_root, 0xD4, 0x00C32004);*/
diff --git a/drivers/gpu/drm/gma500/mid_bios.c b/drivers/gpu/drm/gma500/mid_bios.c
index d75ecb3..65cdbed 100644
--- a/drivers/gpu/drm/gma500/mid_bios.c
+++ b/drivers/gpu/drm/gma500/mid_bios.c
@@ -32,7 +32,8 @@
 static void mid_get_fuse_settings(struct drm_device *dev)
 {
 	struct drm_psb_private *dev_priv = dev->dev_private;
-	struct pci_dev *pci_root = pci_get_bus_and_slot(0, 0);
+	u32 domain = pci_domain_nr(dev->pdev->bus);
+	struct pci_dev *pci_root = pci_get_domain_bus_and_slot(domain, 0, 0);
 	uint32_t fuse_value = 0;
 	uint32_t fuse_value_tmp = 0;
 
@@ -104,7 +105,9 @@ static void mid_get_fuse_settings(struct drm_device *dev)
 static void mid_get_pci_revID(struct drm_psb_private *dev_priv)
 {
 	uint32_t platform_rev_id = 0;
-	struct pci_dev *pci_gfx_root = pci_get_bus_and_slot(0, PCI_DEVFN(2, 0));
+	u32 domain = pci_domain_nr(dev_priv->dev->pdev->bus);
+	struct pci_dev *pci_gfx_root =
+		pci_get_domain_bus_and_slot(domain, 0, PCI_DEVFN(2, 0));
 
 	if (pci_gfx_root == NULL) {
 		WARN_ON(1);
@@ -281,7 +284,9 @@ static void mid_get_vbt_data(struct drm_psb_private *dev_priv)
 	u32 addr;
 	u8 __iomem *vbt_virtual;
 	struct mid_vbt_header vbt_header;
-	struct pci_dev *pci_gfx_root = pci_get_bus_and_slot(0, PCI_DEVFN(2, 0));
+	u32 domain = pci_domain_nr(dev->pdev->bus);
+	struct pci_dev *pci_gfx_root =
+		pci_get_domain_bus_and_slot(domain, 0, PCI_DEVFN(2, 0));
 	int ret = -1;
 
 	/* Get the address of the platform config vbt */
diff --git a/drivers/gpu/drm/gma500/psb_drv.c b/drivers/gpu/drm/gma500/psb_drv.c
index 37a3be7..9d848fd 100644
--- a/drivers/gpu/drm/gma500/psb_drv.c
+++ b/drivers/gpu/drm/gma500/psb_drv.c
@@ -261,7 +261,11 @@ static int psb_driver_load(struct drm_device *dev, unsigned long flags)
 		goto out_err;
 
 	if (IS_MRST(dev)) {
-		dev_priv->aux_pdev = pci_get_bus_and_slot(0, PCI_DEVFN(3, 0));
+		u32 domain = pci_domain_nr(dev->pdev->bus);
+
+		dev_priv->aux_pdev =
+			pci_get_domain_bus_and_slot(domain, 0,
+						    PCI_DEVFN(3, 0));
 
 		if (dev_priv->aux_pdev) {
 			resource_start = pci_resource_start(dev_priv->aux_pdev,
@@ -281,7 +285,9 @@ static int psb_driver_load(struct drm_device *dev, unsigned long flags)
 		}
 		dev_priv->gmbus_reg = dev_priv->aux_reg;
 
-		dev_priv->lpc_pdev = pci_get_bus_and_slot(0, PCI_DEVFN(31, 0));
+		dev_priv->lpc_pdev =
+			pci_get_domain_bus_and_slot(domain, 0,
+						    PCI_DEVFN(31, 0));
 		if (dev_priv->lpc_pdev) {
 			pci_read_config_word(dev_priv->lpc_pdev, PSB_LPC_GBA,
 				&dev_priv->lpc_gpio_base);
diff --git a/drivers/gpu/drm/gma500/psb_drv.h b/drivers/gpu/drm/gma500/psb_drv.h
index 821497d..fb3ea1d 100644
--- a/drivers/gpu/drm/gma500/psb_drv.h
+++ b/drivers/gpu/drm/gma500/psb_drv.h
@@ -781,38 +781,40 @@ extern int psb_gem_dumb_create(struct drm_file *file, struct drm_device *dev,
 extern int drm_idle_check_interval;
 
 /* Utilities */
-static inline u32 MRST_MSG_READ32(uint port, uint offset)
+static inline u32 MRST_MSG_READ32(uint domain, uint port, uint offset)
 {
 	int mcr = (0xD0<<24) | (port << 16) | (offset << 8);
 	uint32_t ret_val = 0;
-	struct pci_dev *pci_root = pci_get_bus_and_slot(0, 0);
+	struct pci_dev *pci_root = pci_get_domain_bus_and_slot(domain, 0, 0);
 	pci_write_config_dword(pci_root, 0xD0, mcr);
 	pci_read_config_dword(pci_root, 0xD4, &ret_val);
 	pci_dev_put(pci_root);
 	return ret_val;
 }
-static inline void MRST_MSG_WRITE32(uint port, uint offset, u32 value)
+static inline void MRST_MSG_WRITE32(uint domain, uint port, uint offset,
+				    u32 value)
 {
 	int mcr = (0xE0<<24) | (port << 16) | (offset << 8) | 0xF0;
-	struct pci_dev *pci_root = pci_get_bus_and_slot(0, 0);
+	struct pci_dev *pci_root = pci_get_domain_bus_and_slot(domain, 0, 0);
 	pci_write_config_dword(pci_root, 0xD4, value);
 	pci_write_config_dword(pci_root, 0xD0, mcr);
 	pci_dev_put(pci_root);
 }
-static inline u32 MDFLD_MSG_READ32(uint port, uint offset)
+static inline u32 MDFLD_MSG_READ32(uint domain, uint port, uint offset)
 {
 	int mcr = (0x10<<24) | (port << 16) | (offset << 8);
 	uint32_t ret_val = 0;
-	struct pci_dev *pci_root = pci_get_bus_and_slot(0, 0);
+	struct pci_dev *pci_root = pci_get_domain_bus_and_slot(domain, 0, 0);
 	pci_write_config_dword(pci_root, 0xD0, mcr);
 	pci_read_config_dword(pci_root, 0xD4, &ret_val);
 	pci_dev_put(pci_root);
 	return ret_val;
 }
-static inline void MDFLD_MSG_WRITE32(uint port, uint offset, u32 value)
+static inline void MDFLD_MSG_WRITE32(uint domain, uint port, uint offset,
+				     u32 value)
 {
 	int mcr = (0x11<<24) | (port << 16) | (offset << 8) | 0xF0;
-	struct pci_dev *pci_root = pci_get_bus_and_slot(0, 0);
+	struct pci_dev *pci_root = pci_get_domain_bus_and_slot(domain, 0, 0);
 	pci_write_config_dword(pci_root, 0xD4, value);
 	pci_write_config_dword(pci_root, 0xD0, mcr);
 	pci_dev_put(pci_root);
-- 
1.9.1

[PATCH V2 09/29] drm/i915: deprecate pci_get_bus_and_slot()

[Sinan Kaya]

pci_get_bus_and_slot() is restrictive such that it assumes domain=0 as
where a PCI device is present. This restricts the device drivers to be
reused for other domain numbers.

Getting ready to remove pci_get_bus_and_slot() function in favor of
pci_get_domain_bus_and_slot().

Extract the domain number from drm_device and pass it into
pci_get_domain_bus_and_slot() function.

Signed-off-by: Sinan Kaya <okaya@codeaurora.org>
---
 drivers/gpu/drm/i915/i915_drv.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c
index 9f45cfe..fea2b5e 100644
--- a/drivers/gpu/drm/i915/i915_drv.c
+++ b/drivers/gpu/drm/i915/i915_drv.c
@@ -419,7 +419,10 @@ static int i915_getparam(struct drm_device *dev, void *data,
 
 static int i915_get_bridge_dev(struct drm_i915_private *dev_priv)
 {
-	dev_priv->bridge_dev = pci_get_bus_and_slot(0, PCI_DEVFN(0, 0));
+	u32 domain = pci_domain_nr(dev_priv->drm.pdev->bus);
+
+	dev_priv->bridge_dev =
+		pci_get_domain_bus_and_slot(domain, 0, PCI_DEVFN(0, 0));
 	if (!dev_priv->bridge_dev) {
 		DRM_ERROR("bridge device not found\n");
 		return -1;
-- 
1.9.1

Re: [PATCH V2 09/29] drm/i915: deprecate pci_get_bus_and_slot()

[Sinan Kaya]

On 11/22/2017 5:49 PM, Sinan Kaya wrote:
>  static int i915_get_bridge_dev(struct drm_i915_private *dev_priv)
>  {
> -	dev_priv->bridge_dev = pci_get_bus_and_slot(0, PCI_DEVFN(0, 0));
> +	u32 domain = pci_domain_nr(dev_priv->drm.pdev->bus);

I'll convert domain type to int on the next version across the series.

I tried to convert most of the drivers to use pci_domain_nr() per feedback
from Greg KH. I'll hold onto posting a new version until I gather feedback
with the approach I have taken.

I just did a build test with the series.

-- 
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.

[PATCH V2 10/29] drm/nouveau: deprecate pci_get_bus_and_slot()

[Sinan Kaya]

pci_get_bus_and_slot() is restrictive such that it assumes domain=0 as
where a PCI device is present. This restricts the device drivers to be
reused for other domain numbers.

Getting ready to remove pci_get_bus_and_slot() function in favor of
pci_get_domain_bus_and_slot().

Replace pci_get_bus_and_slot() with pci_get_domain_bus_and_slot()
and extract the domain number from
1. struct pci_dev
2. struct pci_dev through drm_device->pdev
3. struct pci_dev through fb->subdev->drm_device->pdev

Signed-off-by: Sinan Kaya <okaya@codeaurora.org>
---
 drivers/gpu/drm/nouveau/dispnv04/arb.c           |  4 +++-
 drivers/gpu/drm/nouveau/dispnv04/hw.c            | 10 +++++++---
 drivers/gpu/drm/nouveau/nouveau_drm.c            |  3 ++-
 drivers/gpu/drm/nouveau/nvkm/subdev/fb/ramnv1a.c | 10 +++++++++-
 4 files changed, 21 insertions(+), 6 deletions(-)

diff --git a/drivers/gpu/drm/nouveau/dispnv04/arb.c b/drivers/gpu/drm/nouveau/dispnv04/arb.c
index 90075b6..e7455f7 100644
--- a/drivers/gpu/drm/nouveau/dispnv04/arb.c
+++ b/drivers/gpu/drm/nouveau/dispnv04/arb.c
@@ -213,8 +213,10 @@ struct nv_sim_state {
 	if ((dev->pdev->device & 0xffff) == 0x01a0 /*CHIPSET_NFORCE*/ ||
 	    (dev->pdev->device & 0xffff) == 0x01f0 /*CHIPSET_NFORCE2*/) {
 		uint32_t type;
+		u32 domain = pci_domain_nr(dev->pdev->bus);
 
-		pci_read_config_dword(pci_get_bus_and_slot(0, 1), 0x7c, &type);
+		pci_read_config_dword(pci_get_domain_bus_and_slot(domain, 0, 1),
+				      0x7c, &type);
 
 		sim_data.memory_type = (type >> 12) & 1;
 		sim_data.memory_width = 64;
diff --git a/drivers/gpu/drm/nouveau/dispnv04/hw.c b/drivers/gpu/drm/nouveau/dispnv04/hw.c
index b985990..8806b1b 100644
--- a/drivers/gpu/drm/nouveau/dispnv04/hw.c
+++ b/drivers/gpu/drm/nouveau/dispnv04/hw.c
@@ -216,12 +216,15 @@
 {
 	struct nvkm_pll_vals pllvals;
 	int ret;
+	u32 domain;
+
+	domain = pci_domain_nr(dev->pdev->bus);
 
 	if (plltype == PLL_MEMORY &&
 	    (dev->pdev->device & 0x0ff0) == CHIPSET_NFORCE) {
 		uint32_t mpllP;
-
-		pci_read_config_dword(pci_get_bus_and_slot(0, 3), 0x6c, &mpllP);
+		pci_read_config_dword(pci_get_domain_bus_and_slot(domain, 0, 3),
+				      0x6c, &mpllP);
 		mpllP = (mpllP >> 8) & 0xf;
 		if (!mpllP)
 			mpllP = 4;
@@ -232,7 +235,8 @@
 	    (dev->pdev->device & 0xff0) == CHIPSET_NFORCE2) {
 		uint32_t clock;
 
-		pci_read_config_dword(pci_get_bus_and_slot(0, 5), 0x4c, &clock);
+		pci_read_config_dword(pci_get_domain_bus_and_slot(domain, 0, 5),
+				      0x4c, &clock);
 		return clock / 1000;
 	}
 
diff --git a/drivers/gpu/drm/nouveau/nouveau_drm.c b/drivers/gpu/drm/nouveau/nouveau_drm.c
index 595630d..0b6c639 100644
--- a/drivers/gpu/drm/nouveau/nouveau_drm.c
+++ b/drivers/gpu/drm/nouveau/nouveau_drm.c
@@ -406,7 +406,8 @@ static int nouveau_drm_probe(struct pci_dev *pdev,
 	}
 
 	/* subfunction one is a hdmi audio device? */
-	drm->hdmi_device = pci_get_bus_and_slot((unsigned int)pdev->bus->number,
+	drm->hdmi_device = pci_get_domain_bus_and_slot(pci_domain_nr(pdev->bus),
+						(unsigned int)pdev->bus->number,
 						PCI_DEVFN(PCI_SLOT(pdev->devfn), 1));
 
 	if (!drm->hdmi_device) {
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/fb/ramnv1a.c b/drivers/gpu/drm/nouveau/nvkm/subdev/fb/ramnv1a.c
index 3c6a871..273a632 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/fb/ramnv1a.c
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/fb/ramnv1a.c
@@ -28,8 +28,16 @@
 {
 	struct pci_dev *bridge;
 	u32 mem, mib;
+	u32 domain = 0;
+	struct pci_dev *pdev = NULL;
 
-	bridge = pci_get_bus_and_slot(0, PCI_DEVFN(0, 1));
+	if (dev_is_pci(fb->subdev.device->dev))
+		pdev = to_pci_dev(fb->subdev.device->dev);
+
+	if (pdev)
+		domain = pci_domain_nr(pdev->bus);
+
+	bridge = pci_get_domain_bus_and_slot(domain, 0, PCI_DEVFN(0, 1));
 	if (!bridge) {
 		nvkm_error(&fb->subdev, "no bridge device\n");
 		return -ENODEV;
-- 
1.9.1

[PATCH V2 11/29] Drivers: ide: deprecate pci_get_bus_and_slot()

[Sinan Kaya]

pci_get_bus_and_slot() is restrictive such that it assumes domain=0 as
where a PCI device is present. This restricts the device drivers to be
reused for other domain numbers.

Getting ready to remove pci_get_bus_and_slot() function in favor of
pci_get_domain_bus_and_slot().

Replace pci_get_bus_and_slot() with pci_get_domain_bus_and_slot()
and extract the domain number from struct pci_dev.

Signed-off-by: Sinan Kaya <okaya@codeaurora.org>
---
 drivers/ide/sl82c105.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/ide/sl82c105.c b/drivers/ide/sl82c105.c
index 8755df3..3300dac 100644
--- a/drivers/ide/sl82c105.c
+++ b/drivers/ide/sl82c105.c
@@ -239,8 +239,9 @@ static u8 sl82c105_bridge_revision(struct pci_dev *dev)
 	/*
 	 * The bridge should be part of the same device, but function 0.
 	 */
-	bridge = pci_get_bus_and_slot(dev->bus->number,
-			       PCI_DEVFN(PCI_SLOT(dev->devfn), 0));
+	bridge = pci_get_domain_bus_and_slot(pci_domain_nr(dev->bus),
+					dev->bus->number,
+					PCI_DEVFN(PCI_SLOT(dev->devfn), 0));
 	if (!bridge)
 		return -1;
 
-- 
1.9.1

[PATCH V2 12/29] iommu/amd: deprecate pci_get_bus_and_slot()

[Sinan Kaya]

pci_get_bus_and_slot() is restrictive such that it assumes domain=0 as
where a PCI device is present. This restricts the device drivers to be
reused for other domain numbers.

Getting ready to remove pci_get_bus_and_slot() function in favor of
pci_get_domain_bus_and_slot().

Hard-code the domain number as 0 for the AMD IOMMU driver.

Signed-off-by: Sinan Kaya <okaya@codeaurora.org>
---
 drivers/iommu/amd_iommu.c      | 3 ++-
 drivers/iommu/amd_iommu_init.c | 9 +++++----
 drivers/iommu/amd_iommu_v2.c   | 3 ++-
 3 files changed, 9 insertions(+), 6 deletions(-)

diff --git a/drivers/iommu/amd_iommu.c b/drivers/iommu/amd_iommu.c
index 8e8874d..2c3452f 100644
--- a/drivers/iommu/amd_iommu.c
+++ b/drivers/iommu/amd_iommu.c
@@ -528,7 +528,8 @@ static void amd_iommu_report_page_fault(u16 devid, u16 domain_id,
 	struct iommu_dev_data *dev_data = NULL;
 	struct pci_dev *pdev;
 
-	pdev = pci_get_bus_and_slot(PCI_BUS_NUM(devid), devid & 0xff);
+	pdev = pci_get_domain_bus_and_slot(0, PCI_BUS_NUM(devid),
+					   devid & 0xff);
 	if (pdev)
 		dev_data = get_dev_data(&pdev->dev);
 
diff --git a/drivers/iommu/amd_iommu_init.c b/drivers/iommu/amd_iommu_init.c
index 6fe2d03..4e4a615 100644
--- a/drivers/iommu/amd_iommu_init.c
+++ b/drivers/iommu/amd_iommu_init.c
@@ -1697,8 +1697,8 @@ static int iommu_init_pci(struct amd_iommu *iommu)
 	u32 range, misc, low, high;
 	int ret;
 
-	iommu->dev = pci_get_bus_and_slot(PCI_BUS_NUM(iommu->devid),
-					  iommu->devid & 0xff);
+	iommu->dev = pci_get_domain_bus_and_slot(0, PCI_BUS_NUM(iommu->devid),
+						 iommu->devid & 0xff);
 	if (!iommu->dev)
 		return -ENODEV;
 
@@ -1764,8 +1764,9 @@ static int iommu_init_pci(struct amd_iommu *iommu)
 	if (is_rd890_iommu(iommu->dev)) {
 		int i, j;
 
-		iommu->root_pdev = pci_get_bus_and_slot(iommu->dev->bus->number,
-				PCI_DEVFN(0, 0));
+		iommu->root_pdev =
+			pci_get_domain_bus_and_slot(0, iommu->dev->bus->number,
+						    PCI_DEVFN(0, 0));
 
 		/*
 		 * Some rd890 systems may not be fully reconfigured by the
diff --git a/drivers/iommu/amd_iommu_v2.c b/drivers/iommu/amd_iommu_v2.c
index 7d94e1d..8696382 100644
--- a/drivers/iommu/amd_iommu_v2.c
+++ b/drivers/iommu/amd_iommu_v2.c
@@ -564,7 +564,8 @@ static int ppr_notifier(struct notifier_block *nb, unsigned long e, void *data)
 	finish      = (iommu_fault->tag >> 9) & 1;
 
 	devid = iommu_fault->device_id;
-	pdev = pci_get_bus_and_slot(PCI_BUS_NUM(devid), devid & 0xff);
+	pdev = pci_get_domain_bus_and_slot(0, PCI_BUS_NUM(devid),
+					   devid & 0xff);
 	if (!pdev)
 		return -ENODEV;
 	dev_data = get_dev_data(&pdev->dev);
-- 
1.9.1

[PATCH V2 13/29] powerpc/powermac: deprecate pci_get_bus_and_slot()

[Sinan Kaya]

pci_get_bus_and_slot() is restrictive such that it assumes domain=0 as
where a PCI device is present. This restricts the device drivers to be
reused for other domain numbers.

Getting ready to remove pci_get_bus_and_slot() function in favor of
pci_get_domain_bus_and_slot().

Hard-code the domain number as 0 to match the previous behavior.

Signed-off-by: Sinan Kaya <okaya@codeaurora.org>
---
 drivers/macintosh/via-pmu.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/macintosh/via-pmu.c b/drivers/macintosh/via-pmu.c
index c4c2b3b..3e8b3b6 100644
--- a/drivers/macintosh/via-pmu.c
+++ b/drivers/macintosh/via-pmu.c
@@ -1799,7 +1799,7 @@ static int powerbook_sleep_grackle(void)
 	struct adb_request req;
 	struct pci_dev *grackle;
 
-	grackle = pci_get_bus_and_slot(0, 0);
+	grackle = pci_get_domain_bus_and_slot(0, 0, 0);
 	if (!grackle)
 		return -ENODEV;
 
-- 
1.9.1

[PATCH V2 14/29] bnx2x: deprecate pci_get_bus_and_slot()

[Sinan Kaya]

pci_get_bus_and_slot() is restrictive such that it assumes domain=0 as
where a PCI device is present. This restricts the device drivers to be
reused for other domain numbers.

Getting ready to remove pci_get_bus_and_slot() function in favor of
pci_get_domain_bus_and_slot().

Introduce bnx2x_vf_domain() function to extract the domain information
and save it to VF specific data structure.

Use the saved domain value while calling pci_get_domain_bus_and_slot().

Signed-off-by: Sinan Kaya <okaya@codeaurora.org>
---
 drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c | 10 +++++++++-
 drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.h |  1 +
 2 files changed, 10 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c
index 9ca994d..9f40c23 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c
@@ -812,7 +812,7 @@ static u8 bnx2x_vf_is_pcie_pending(struct bnx2x *bp, u8 abs_vfid)
 	if (!vf)
 		return false;
 
-	dev = pci_get_bus_and_slot(vf->bus, vf->devfn);
+	dev = pci_get_domain_bus_and_slot(vf->domain, vf->bus, vf->devfn);
 	if (dev)
 		return bnx2x_is_pcie_pending(dev);
 	return false;
@@ -1041,6 +1041,13 @@ void bnx2x_iov_init_dmae(struct bnx2x *bp)
 		REG_WR(bp, DMAE_REG_BACKWARD_COMP_EN, 0);
 }
 
+static int bnx2x_vf_domain(struct bnx2x *bp, int vfid)
+{
+	struct pci_dev *dev = bp->pdev;
+
+	return pci_domain_nr(dev->bus);
+}
+
 static int bnx2x_vf_bus(struct bnx2x *bp, int vfid)
 {
 	struct pci_dev *dev = bp->pdev;
@@ -1611,6 +1618,7 @@ int bnx2x_iov_nic_init(struct bnx2x *bp)
 		struct bnx2x_virtf *vf = BP_VF(bp, vfid);
 
 		/* fill in the BDF and bars */
+		vf->domain = bnx2x_vf_domain(bp, vfid);
 		vf->bus = bnx2x_vf_bus(bp, vfid);
 		vf->devfn = bnx2x_vf_devfn(bp, vfid);
 		bnx2x_vf_set_bars(bp, vf);
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.h b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.h
index 53466f6..eb814c6 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.h
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.h
@@ -182,6 +182,7 @@ struct bnx2x_virtf {
 	u32 error;	/* 0 means all's-well */
 
 	/* BDF */
+	unsigned int domain;
 	unsigned int bus;
 	unsigned int devfn;
 
-- 
1.9.1

[PATCH V2 15/29] pch_gbe: deprecate pci_get_bus_and_slot()

[Sinan Kaya]

pci_get_bus_and_slot() is restrictive such that it assumes domain=0 as
where a PCI device is present. This restricts the device drivers to be
reused for other domain numbers.

Getting ready to remove pci_get_bus_and_slot() function in favor of
pci_get_domain_bus_and_slot().

Use the domain information from pdev while calling into
pci_get_domain_bus_and_slot() function.

Signed-off-by: Sinan Kaya <okaya@codeaurora.org>
---
 drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_main.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_main.c b/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_main.c
index 5ae9681..4be7806 100644
--- a/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_main.c
+++ b/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_main.c
@@ -2603,8 +2603,10 @@ static int pch_gbe_probe(struct pci_dev *pdev,
 	if (adapter->pdata && adapter->pdata->platform_init)
 		adapter->pdata->platform_init(pdev);
 
-	adapter->ptp_pdev = pci_get_bus_and_slot(adapter->pdev->bus->number,
-					       PCI_DEVFN(12, 4));
+	adapter->ptp_pdev =
+		pci_get_domain_bus_and_slot(pci_domain_nr(adapter->pdev->bus),
+					    adapter->pdev->bus->number,
+					    PCI_DEVFN(12, 4));
 
 	netdev->netdev_ops = &pch_gbe_netdev_ops;
 	netdev->watchdog_timeo = PCH_GBE_WATCHDOG_PERIOD;
-- 
1.9.1

[PATCH V2 16/29] PCI: cpqhp: deprecate pci_get_bus_and_slot()

[Sinan Kaya]

pci_get_bus_and_slot() is restrictive such that it assumes domain=0 as
where a PCI device is present. This restricts the device drivers to be
reused for other domain numbers.

Getting ready to remove pci_get_bus_and_slot() function in favor of
pci_get_domain_bus_and_slot().

Hard-coding the domain number as 0. The code doesn't seem to be ready
for multiple domains.

Signed-off-by: Sinan Kaya <okaya@codeaurora.org>
---
 drivers/pci/hotplug/cpqphp_pci.c | 18 ++++++++++++++----
 1 file changed, 14 insertions(+), 4 deletions(-)

diff --git a/drivers/pci/hotplug/cpqphp_pci.c b/drivers/pci/hotplug/cpqphp_pci.c
index e220d49..8897a77 100644
--- a/drivers/pci/hotplug/cpqphp_pci.c
+++ b/drivers/pci/hotplug/cpqphp_pci.c
@@ -89,7 +89,9 @@ int cpqhp_configure_device(struct controller *ctrl, struct pci_func *func)
 	pci_lock_rescan_remove();
 
 	if (func->pci_dev == NULL)
-		func->pci_dev = pci_get_bus_and_slot(func->bus, PCI_DEVFN(func->device, func->function));
+		func->pci_dev = pci_get_domain_bus_and_slot(0, func->bus,
+							PCI_DEVFN(func->device,
+							func->function));
 
 	/* No pci device, we need to create it then */
 	if (func->pci_dev == NULL) {
@@ -99,7 +101,9 @@ int cpqhp_configure_device(struct controller *ctrl, struct pci_func *func)
 		if (num)
 			pci_bus_add_devices(ctrl->pci_dev->bus);
 
-		func->pci_dev = pci_get_bus_and_slot(func->bus, PCI_DEVFN(func->device, func->function));
+		func->pci_dev = pci_get_domain_bus_and_slot(0, func->bus,
+							PCI_DEVFN(func->device,
+							func->function));
 		if (func->pci_dev == NULL) {
 			dbg("ERROR: pci_dev still null\n");
 			goto out;
@@ -129,7 +133,10 @@ int cpqhp_unconfigure_device(struct pci_func *func)
 
 	pci_lock_rescan_remove();
 	for (j = 0; j < 8 ; j++) {
-		struct pci_dev *temp = pci_get_bus_and_slot(func->bus, PCI_DEVFN(func->device, j));
+		struct pci_dev *temp = pci_get_domain_bus_and_slot(0,
+							func->bus,
+							PCI_DEVFN(func->device,
+							j));
 		if (temp) {
 			pci_dev_put(temp);
 			pci_stop_and_remove_bus_device(temp);
@@ -319,6 +326,7 @@ int cpqhp_save_config(struct controller *ctrl, int busnumber, int is_hot_plug)
 	int cloop = 0;
 	int stop_it;
 	int index;
+	u16 devfn;
 
 	/* Decide which slots are supported */
 
@@ -416,7 +424,9 @@ int cpqhp_save_config(struct controller *ctrl, int busnumber, int is_hot_plug)
 			new_slot->switch_save = 0x10;
 			/* In case of unsupported board */
 			new_slot->status = DevError;
-			new_slot->pci_dev = pci_get_bus_and_slot(new_slot->bus, (new_slot->device << 3) | new_slot->function);
+			devfn = (new_slot->device << 3) | new_slot->function;
+			new_slot->pci_dev = pci_get_domain_bus_and_slot(0,
+							new_slot->bus, devfn);
 
 			for (cloop = 0; cloop < 0x20; cloop++) {
 				rc = pci_bus_read_config_dword(ctrl->pci_bus, PCI_DEVFN(device, function), cloop << 2, (u32 *) &(new_slot->config_space[cloop]));
-- 
1.9.1

[PATCH V2 17/29] PCI: ibmphp: deprecate pci_get_bus_and_slot()

[Sinan Kaya]

pci_get_bus_and_slot() is restrictive such that it assumes domain=0 as
where a PCI device is present. This restricts the device drivers to be
reused for other domain numbers.

Getting ready to remove pci_get_bus_and_slot() function in favor of
pci_get_domain_bus_and_slot().

Hard-coding the domain parameter as 0 since the code doesn't seem to be
ready for multiple domains.

Signed-off-by: Sinan Kaya <okaya@codeaurora.org>
---
 drivers/pci/hotplug/ibmphp_core.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/drivers/pci/hotplug/ibmphp_core.c b/drivers/pci/hotplug/ibmphp_core.c
index 73cf846..92dd882 100644
--- a/drivers/pci/hotplug/ibmphp_core.c
+++ b/drivers/pci/hotplug/ibmphp_core.c
@@ -707,7 +707,8 @@ static void ibm_unconfigure_device(struct pci_func *func)
 	pci_lock_rescan_remove();
 
 	for (j = 0; j < 0x08; j++) {
-		temp = pci_get_bus_and_slot(func->busno, (func->device << 3) | j);
+		temp = pci_get_domain_bus_and_slot(0, func->busno,
+						   (func->device << 3) | j);
 		if (temp) {
 			pci_stop_and_remove_bus_device(temp);
 			pci_dev_put(temp);
@@ -780,7 +781,7 @@ static int ibm_configure_device(struct pci_func *func)
 	if (!(bus_structure_fixup(func->busno)))
 		flag = 1;
 	if (func->dev == NULL)
-		func->dev = pci_get_bus_and_slot(func->busno,
+		func->dev = pci_get_domain_bus_and_slot(0, func->busno,
 				PCI_DEVFN(func->device, func->function));
 
 	if (func->dev == NULL) {
@@ -793,7 +794,7 @@ static int ibm_configure_device(struct pci_func *func)
 		if (num)
 			pci_bus_add_devices(bus);
 
-		func->dev = pci_get_bus_and_slot(func->busno,
+		func->dev = pci_get_domain_bus_and_slot(0, func->busno,
 				PCI_DEVFN(func->device, func->function));
 		if (func->dev == NULL) {
 			err("ERROR... : pci_dev still NULL\n");
-- 
1.9.1

[PATCH V2 18/29] PCI/quirks: deprecate pci_get_bus_and_slot()

[Sinan Kaya]

pci_get_bus_and_slot() is restrictive such that it assumes domain=0 as
where a PCI device is present. This restricts the device drivers to be
reused for other domain numbers.

Getting ready to remove pci_get_bus_and_slot() function in favor of
pci_get_domain_bus_and_slot().

Extract the domain number from pdev while calling into
pci_get_domain_bus_and_slot() function.

Signed-off-by: Sinan Kaya <okaya@codeaurora.org>
---
 drivers/pci/quirks.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c
index 911b3b6..4c46cc5 100644
--- a/drivers/pci/quirks.c
+++ b/drivers/pci/quirks.c
@@ -2699,7 +2699,8 @@ static void __nv_msi_ht_cap_quirk(struct pci_dev *dev, int all)
 	 * HT MSI mapping should be disabled on devices that are below
 	 * a non-Hypertransport host bridge. Locate the host bridge...
 	 */
-	host_bridge = pci_get_bus_and_slot(0, PCI_DEVFN(0, 0));
+	host_bridge = pci_get_domain_bus_and_slot(pci_domain_nr(dev->bus), 0,
+						  PCI_DEVFN(0, 0));
 	if (host_bridge == NULL) {
 		dev_warn(&dev->dev, "nv_msi_ht_cap_quirk didn't locate host bridge\n");
 		return;
-- 
1.9.1

[PATCH V2 19/29] PCI/syscall: deprecate pci_get_bus_and_slot()

[Sinan Kaya]

pci_get_bus_and_slot() is restrictive such that it assumes domain=0 as
where a PCI device is present. This restricts the device drivers to be
reused for other domain numbers.

Getting ready to remove pci_get_bus_and_slot() function in favor of
pci_get_domain_bus_and_slot().

Hard-coding the domain value as 0 because the domain information is not
coming from the userspace.

Signed-off-by: Sinan Kaya <okaya@codeaurora.org>
---
 drivers/pci/syscall.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/pci/syscall.c b/drivers/pci/syscall.c
index 83efa00..e725f99 100644
--- a/drivers/pci/syscall.c
+++ b/drivers/pci/syscall.c
@@ -28,7 +28,7 @@
 		return -EPERM;
 
 	err = -ENODEV;
-	dev = pci_get_bus_and_slot(bus, dfn);
+	dev = pci_get_domain_bus_and_slot(0, bus, dfn);
 	if (!dev)
 		goto error;
 
@@ -96,7 +96,7 @@
 	if (!capable(CAP_SYS_ADMIN))
 		return -EPERM;
 
-	dev = pci_get_bus_and_slot(bus, dfn);
+	dev = pci_get_domain_bus_and_slot(0, bus, dfn);
 	if (!dev)
 		return -ENODEV;
 
-- 
1.9.1

[PATCH V2 20/29] xen: deprecate pci_get_bus_and_slot()

[Sinan Kaya]

pci_get_bus_and_slot() is restrictive such that it assumes domain=0 as
where a PCI device is present. This restricts the device drivers to be
reused for other domain numbers.

Use pci_get_domain_bus_and_slot() with a domain number of 0 where we can't
extract the domain number. Other places, use the actual domain number from
the device.

Reviewed-by: Juergen Gross <jgross@suse.com>
Signed-off-by: Sinan Kaya <okaya@codeaurora.org>
---
 drivers/pci/xen-pcifront.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/pci/xen-pcifront.c b/drivers/pci/xen-pcifront.c
index 8fc2e95..94b25b5 100644
--- a/drivers/pci/xen-pcifront.c
+++ b/drivers/pci/xen-pcifront.c
@@ -595,6 +595,7 @@ static pci_ers_result_t pcifront_common_process(int cmd,
 	struct pci_driver *pdrv;
 	int bus = pdev->sh_info->aer_op.bus;
 	int devfn = pdev->sh_info->aer_op.devfn;
+	int domain = pdev->sh_info->aer_op.domain;
 	struct pci_dev *pcidev;
 	int flag = 0;
 
@@ -603,7 +604,7 @@ static pci_ers_result_t pcifront_common_process(int cmd,
 		cmd, bus, devfn);
 	result = PCI_ERS_RESULT_NONE;
 
-	pcidev = pci_get_bus_and_slot(bus, devfn);
+	pcidev = pci_get_domain_bus_and_slot(domain, bus, devfn);
 	if (!pcidev || !pcidev->driver) {
 		dev_err(&pdev->xdev->dev, "device or AER driver is NULL\n");
 		pci_dev_put(pcidev);
-- 
1.9.1

[PATCH V2 21/29] openprom: deprecate pci_get_bus_and_slot()

[Sinan Kaya]

pci_get_bus_and_slot() is restrictive such that it assumes domain=0 as
where a PCI device is present. This restricts the device drivers to be
reused for other domain numbers.

Getting ready to remove pci_get_bus_and_slot() function in favor of
pci_get_domain_bus_and_slot().

Hard-coding the domain as 0 since domain information is not available.

Signed-off-by: Sinan Kaya <okaya@codeaurora.org>
---
 drivers/sbus/char/openprom.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/sbus/char/openprom.c b/drivers/sbus/char/openprom.c
index 2c2e6a3..7b31f19 100644
--- a/drivers/sbus/char/openprom.c
+++ b/drivers/sbus/char/openprom.c
@@ -251,8 +251,9 @@ static int oprompci2node(void __user *argp, struct device_node *dp, struct openp
 		struct pci_dev *pdev;
 		struct device_node *dp;
 
-		pdev = pci_get_bus_and_slot (((int *) op->oprom_array)[0],
-				      ((int *) op->oprom_array)[1]);
+		pdev = pci_get_domain_bus_and_slot(0,
+						((int *) op->oprom_array)[0],
+						((int *) op->oprom_array)[1]);
 
 		dp = pci_device_to_OF_node(pdev);
 		data->current_node = dp;
-- 
1.9.1

[PATCH V2 22/29] [media] atomisp: deprecate pci_get_bus_and_slot()

[Sinan Kaya]

pci_get_bus_and_slot() is restrictive such that it assumes domain=0 as
where a PCI device is present. This restricts the device drivers to be
reused for other domain numbers.

Getting ready to remove pci_get_bus_and_slot() function. Since ISP always
uses domain 0, hard-code it in the code when calling the replacement
function pci_get_domain_bus_and_slot().

Signed-off-by: Sinan Kaya <okaya@codeaurora.org>
---
 drivers/staging/media/atomisp/pci/atomisp2/atomisp_v4l2.c               | 2 +-
 drivers/staging/media/atomisp/platform/intel-mid/intel_mid_pcihelpers.c | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/staging/media/atomisp/pci/atomisp2/atomisp_v4l2.c b/drivers/staging/media/atomisp/pci/atomisp2/atomisp_v4l2.c
index 663aa91..95b9c7a 100644
--- a/drivers/staging/media/atomisp/pci/atomisp2/atomisp_v4l2.c
+++ b/drivers/staging/media/atomisp/pci/atomisp2/atomisp_v4l2.c
@@ -1233,7 +1233,7 @@ static int atomisp_pci_probe(struct pci_dev *dev,
 	isp->pdev = dev;
 	isp->dev = &dev->dev;
 	isp->sw_contex.power_state = ATOM_ISP_POWER_UP;
-	isp->pci_root = pci_get_bus_and_slot(0, 0);
+	isp->pci_root = pci_get_domain_bus_and_slot(0, 0, 0);
 	if (!isp->pci_root) {
 		dev_err(&dev->dev, "Unable to find PCI host\n");
 		return -ENODEV;
diff --git a/drivers/staging/media/atomisp/platform/intel-mid/intel_mid_pcihelpers.c b/drivers/staging/media/atomisp/platform/intel-mid/intel_mid_pcihelpers.c
index 4631b1d..51dcef57 100644
--- a/drivers/staging/media/atomisp/platform/intel-mid/intel_mid_pcihelpers.c
+++ b/drivers/staging/media/atomisp/platform/intel-mid/intel_mid_pcihelpers.c
@@ -39,7 +39,7 @@ static inline int platform_is(u8 model)
 
 static int intel_mid_msgbus_init(void)
 {
-	pci_root = pci_get_bus_and_slot(0, PCI_DEVFN(0, 0));
+	pci_root = pci_get_domain_bus_and_slot(0, 0, PCI_DEVFN(0, 0));
 	if (!pci_root) {
 		pr_err("%s: Error: msgbus PCI handle NULL\n", __func__);
 		return -ENODEV;
-- 
1.9.1

[PATCH V2 23/29] staging: rts5208: deprecate pci_get_bus_and_slot()

[Sinan Kaya]

pci_get_bus_and_slot() is restrictive such that it assumes domain=0 as
where a PCI device is present. This restricts the device drivers to be
reused for other domain numbers.

Getting ready to remove pci_get_bus_and_slot() function in favor of
pci_get_domain_bus_and_slot().

Remove unused rtsx_read_pci_cfg_byte() function.

Signed-off-by: Sinan Kaya <okaya@codeaurora.org>
---
 drivers/staging/rts5208/rtsx.c | 17 -----------------
 drivers/staging/rts5208/rtsx.h |  2 --
 2 files changed, 19 deletions(-)

diff --git a/drivers/staging/rts5208/rtsx.c b/drivers/staging/rts5208/rtsx.c
index 89e2cfe..70e0b86 100644
--- a/drivers/staging/rts5208/rtsx.c
+++ b/drivers/staging/rts5208/rtsx.c
@@ -275,23 +275,6 @@ static int rtsx_acquire_irq(struct rtsx_dev *dev)
 	return 0;
 }
 
-int rtsx_read_pci_cfg_byte(u8 bus, u8 dev, u8 func, u8 offset, u8 *val)
-{
-	struct pci_dev *pdev;
-	u8 data;
-	u8 devfn = (dev << 3) | func;
-
-	pdev = pci_get_bus_and_slot(bus, devfn);
-	if (!pdev)
-		return -1;
-
-	pci_read_config_byte(pdev, offset, &data);
-	if (val)
-		*val = data;
-
-	return 0;
-}
-
 #ifdef CONFIG_PM
 /*
  * power management
diff --git a/drivers/staging/rts5208/rtsx.h b/drivers/staging/rts5208/rtsx.h
index 575e573..62e467c 100644
--- a/drivers/staging/rts5208/rtsx.h
+++ b/drivers/staging/rts5208/rtsx.h
@@ -174,8 +174,6 @@ static inline void get_current_time(u8 *timeval_buf, int buf_len)
 /* struct scsi_cmnd transfer buffer access utilities */
 enum xfer_buf_dir	{TO_XFER_BUF, FROM_XFER_BUF};
 
-int rtsx_read_pci_cfg_byte(u8 bus, u8 dev, u8 func, u8 offset, u8 *val);
-
 #define _MSG_TRACE
 
 #include "trace.h"
-- 
1.9.1

Re: [PATCH V2 23/29] staging: rts5208: deprecate pci_get_bus_and_slot()

[Greg Kroah-Hartman]

On Wed, Nov 22, 2017 at 05:49:18PM -0500, Sinan Kaya wrote:
> pci_get_bus_and_slot() is restrictive such that it assumes domain=0 as
> where a PCI device is present. This restricts the device drivers to be
> reused for other domain numbers.
> 
> Getting ready to remove pci_get_bus_and_slot() function in favor of
> pci_get_domain_bus_and_slot().
> 
> Remove unused rtsx_read_pci_cfg_byte() function.

You only need this one sentance here for the changelog for this patch.
And the subject line makes no sense.

Please fix up and resend.

thanks,

greg k-h

[PATCH V2 24/29] backlight: deprecate pci_get_bus_and_slot()

[Sinan Kaya]

pci_get_bus_and_slot() is restrictive such that it assumes domain=0 as
where a PCI device is present. This restricts the device drivers to be
reused for other domain numbers.

Getting ready to remove pci_get_bus_and_slot() function in favor of
pci_get_domain_bus_and_slot().

Hard-coding the domain as 0.

Signed-off-by: Sinan Kaya <okaya@codeaurora.org>
---
 drivers/video/backlight/apple_bl.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/video/backlight/apple_bl.c b/drivers/video/backlight/apple_bl.c
index d843296..6a34ab9 100644
--- a/drivers/video/backlight/apple_bl.c
+++ b/drivers/video/backlight/apple_bl.c
@@ -143,7 +143,7 @@ static int apple_bl_add(struct acpi_device *dev)
 	struct pci_dev *host;
 	int intensity;
 
-	host = pci_get_bus_and_slot(0, 0);
+	host = pci_get_domain_bus_and_slot(0, 0, 0);
 
 	if (!host) {
 		pr_err("unable to find PCI host\n");
-- 
1.9.1

Re: [PATCH V2 24/29] backlight: deprecate pci_get_bus_and_slot()

[Daniel Thompson]

On 22/11/17 22:49, Sinan Kaya wrote:
> pci_get_bus_and_slot() is restrictive such that it assumes domain=0 as
> where a PCI device is present. This restricts the device drivers to be
> reused for other domain numbers.
> 
> Getting ready to remove pci_get_bus_and_slot() function in favor of
> pci_get_domain_bus_and_slot().
> 
> Hard-coding the domain as 0.
> 
> Signed-off-by: Sinan Kaya <okaya@codeaurora.org>

I've no opinion on the wisdom or otherwise of removing the restrictive 
API but, providing the removal of that API from the header file collects 
the appropriate ack, then:

Acked-by: Daniel Thompson <daniel.thompson@linaro.org>


> ---
>   drivers/video/backlight/apple_bl.c | 2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/video/backlight/apple_bl.c b/drivers/video/backlight/apple_bl.c
> index d843296..6a34ab9 100644
> --- a/drivers/video/backlight/apple_bl.c
> +++ b/drivers/video/backlight/apple_bl.c
> @@ -143,7 +143,7 @@ static int apple_bl_add(struct acpi_device *dev)
>   	struct pci_dev *host;
>   	int intensity;
>   
> -	host = pci_get_bus_and_slot(0, 0);
> +	host = pci_get_domain_bus_and_slot(0, 0, 0);
>   
>   	if (!host) {
>   		pr_err("unable to find PCI host\n");
> 

[PATCH V2 25/29] video: fbdev: intelfb: deprecate pci_get_bus_and_slot()

[Sinan Kaya]

pci_get_bus_and_slot() is restrictive such that it assumes domain=0 as
where a PCI device is present. This restricts the device drivers to be
reused for other domain numbers.

Getting ready to remove pci_get_bus_and_slot() function in favor of
pci_get_domain_bus_and_slot().

Find the domain number from pdev.

Signed-off-by: Sinan Kaya <okaya@codeaurora.org>
---
 drivers/video/fbdev/intelfb/intelfbhw.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/video/fbdev/intelfb/intelfbhw.c b/drivers/video/fbdev/intelfb/intelfbhw.c
index d31ed4e..f695867 100644
--- a/drivers/video/fbdev/intelfb/intelfbhw.c
+++ b/drivers/video/fbdev/intelfb/intelfbhw.c
@@ -181,7 +181,9 @@ int intelfbhw_get_memory(struct pci_dev *pdev, int *aperture_size,
 		return 1;
 
 	/* Find the bridge device.  It is always 0:0.0 */
-	if (!(bridge_dev = pci_get_bus_and_slot(0, PCI_DEVFN(0, 0)))) {
+	bridge_dev = pci_get_domain_bus_and_slot(pci_domain_nr(pdev->bus), 0,
+						 PCI_DEVFN(0, 0));
+	if (!bridge_dev) {
 		ERR_MSG("cannot find bridge device\n");
 		return 1;
 	}
-- 
1.9.1

[PATCH V2 26/29] video: fbdev: nvidia: deprecate pci_get_bus_and_slot()

[Sinan Kaya]

pci_get_bus_and_slot() is restrictive such that it assumes domain=0 as
where a PCI device is present. This restricts the device drivers to be
reused for other domain numbers.

Getting ready to remove pci_get_bus_and_slot() function in favor of
pci_get_domain_bus_and_slot().

struct nvidia_par has a pointer to struct pci_dev. Use the pci_dev
member to extract the domain information and pass it to
pci_get_domain_bus_and_slot() function.

Signed-off-by: Sinan Kaya <okaya@codeaurora.org>
---
 drivers/video/fbdev/nvidia/nv_hw.c    | 11 ++++++-----
 drivers/video/fbdev/nvidia/nv_setup.c |  3 ++-
 2 files changed, 8 insertions(+), 6 deletions(-)

diff --git a/drivers/video/fbdev/nvidia/nv_hw.c b/drivers/video/fbdev/nvidia/nv_hw.c
index 81c80ac..33f3110 100644
--- a/drivers/video/fbdev/nvidia/nv_hw.c
+++ b/drivers/video/fbdev/nvidia/nv_hw.c
@@ -683,10 +683,11 @@ static void nForceUpdateArbitrationSettings(unsigned VClk,
 	nv10_sim_state sim_data;
 	unsigned int M, N, P, pll, MClk, NVClk, memctrl;
 	struct pci_dev *dev;
+	u32 domain = pci_domain_nr(par->pci_dev->bus);
 
 	if ((par->Chipset & 0x0FF0) == 0x01A0) {
 		unsigned int uMClkPostDiv;
-		dev = pci_get_bus_and_slot(0, 3);
+		dev = pci_get_domain_bus_and_slot(domain, 0, 3);
 		pci_read_config_dword(dev, 0x6C, &uMClkPostDiv);
 		uMClkPostDiv = (uMClkPostDiv >> 8) & 0xf;
 
@@ -694,7 +695,7 @@ static void nForceUpdateArbitrationSettings(unsigned VClk,
 			uMClkPostDiv = 4;
 		MClk = 400000 / uMClkPostDiv;
 	} else {
-		dev = pci_get_bus_and_slot(0, 5);
+		dev = pci_get_domain_bus_and_slot(domain, 0, 5);
 		pci_read_config_dword(dev, 0x4c, &MClk);
 		MClk /= 1000;
 	}
@@ -707,13 +708,13 @@ static void nForceUpdateArbitrationSettings(unsigned VClk,
 	sim_data.pix_bpp = (char)pixelDepth;
 	sim_data.enable_video = 0;
 	sim_data.enable_mp = 0;
-	dev = pci_get_bus_and_slot(0, 1);
+	dev = pci_get_domain_bus_and_slot(domain, 0, 1);
 	pci_read_config_dword(dev, 0x7C, &sim_data.memory_type);
 	pci_dev_put(dev);
 	sim_data.memory_type = (sim_data.memory_type >> 12) & 1;
 	sim_data.memory_width = 64;
 
-	dev = pci_get_bus_and_slot(0, 3);
+	dev = pci_get_domain_bus_and_slot(domain, 0, 3);
 	pci_read_config_dword(dev, 0, &memctrl);
 	pci_dev_put(dev);
 	memctrl >>= 16;
@@ -721,7 +722,7 @@ static void nForceUpdateArbitrationSettings(unsigned VClk,
 	if ((memctrl == 0x1A9) || (memctrl == 0x1AB) || (memctrl == 0x1ED)) {
 		u32 dimm[3];
 
-		dev = pci_get_bus_and_slot(0, 2);
+		dev = pci_get_domain_bus_and_slot(domain, 0, 2);
 		pci_read_config_dword(dev, 0x40, &dimm[0]);
 		dimm[0] = (dimm[0] >> 8) & 0x4f;
 		pci_read_config_dword(dev, 0x44, &dimm[1]);
diff --git a/drivers/video/fbdev/nvidia/nv_setup.c b/drivers/video/fbdev/nvidia/nv_setup.c
index 2f2e162..b17acd2 100644
--- a/drivers/video/fbdev/nvidia/nv_setup.c
+++ b/drivers/video/fbdev/nvidia/nv_setup.c
@@ -264,7 +264,8 @@ static void nv10GetConfig(struct nvidia_par *par)
 	}
 #endif
 
-	dev = pci_get_bus_and_slot(0, 1);
+	dev = pci_get_domain_bus_and_slot(pci_domain_nr(par->pci_dev->bus),
+					  0, 1);
 	if ((par->Chipset & 0xffff) == 0x01a0) {
 		u32 amt;
 
-- 
1.9.1

[PATCH V2 27/29] video: fbdev: riva: deprecate pci_get_bus_and_slot()

[Sinan Kaya]

pci_get_bus_and_slot() is restrictive such that it assumes domain=0 as
where a PCI device is present. This restricts the device drivers to be
reused for other domain numbers.

Getting ready to remove pci_get_bus_and_slot() function in favor of
pci_get_domain_bus_and_slot().

struct riva_par has a pointer to struct pci_dev. Use the pci_dev member
to extract the domain information.

Change the function signature for CalcStateExt and RivaGetConfig to pass
in struct pci_dev in addition to RIVA_HW_INST so that code inside the
riva_hw.c can also calculate domain number and pass it to
pci_get_domain_bus_and_slot().

Signed-off-by: Sinan Kaya <okaya@codeaurora.org>
---
 drivers/video/fbdev/riva/fbdev.c     |  2 +-
 drivers/video/fbdev/riva/nv_driver.c |  7 ++++---
 drivers/video/fbdev/riva/riva_hw.c   | 20 +++++++++++++-------
 drivers/video/fbdev/riva/riva_hw.h   |  3 ++-
 4 files changed, 20 insertions(+), 12 deletions(-)

diff --git a/drivers/video/fbdev/riva/fbdev.c b/drivers/video/fbdev/riva/fbdev.c
index 1ea78bb..ff82823 100644
--- a/drivers/video/fbdev/riva/fbdev.c
+++ b/drivers/video/fbdev/riva/fbdev.c
@@ -780,7 +780,7 @@ static int riva_load_video_mode(struct fb_info *info)
 	else
 		newmode.misc_output |= 0x80;	
 
-	rc = CalcStateExt(&par->riva, &newmode.ext, bpp, width,
+	rc = CalcStateExt(&par->riva, &newmode.ext, par->pdev, bpp, width,
 			  hDisplaySize, height, dotClock);
 	if (rc)
 		goto out;
diff --git a/drivers/video/fbdev/riva/nv_driver.c b/drivers/video/fbdev/riva/nv_driver.c
index f3694cf..e8e85c1 100644
--- a/drivers/video/fbdev/riva/nv_driver.c
+++ b/drivers/video/fbdev/riva/nv_driver.c
@@ -159,6 +159,7 @@ unsigned long riva_get_memlen(struct riva_par *par)
 	unsigned int chipset = par->Chipset;
 	struct pci_dev* dev;
 	u32 amt;
+	u32 domain = pci_domain_nr(par->pdev->bus);
 
 	switch (chip->Architecture) {
 	case NV_ARCH_03:
@@ -226,12 +227,12 @@ unsigned long riva_get_memlen(struct riva_par *par)
 	case NV_ARCH_30:
 		if(chipset == NV_CHIP_IGEFORCE2) {
 
-			dev = pci_get_bus_and_slot(0, 1);
+			dev = pci_get_domain_bus_and_slot(domain, 0, 1);
 			pci_read_config_dword(dev, 0x7C, &amt);
 			pci_dev_put(dev);
 			memlen = (((amt >> 6) & 31) + 1) * 1024;
 		} else if (chipset == NV_CHIP_0x01F0) {
-			dev = pci_get_bus_and_slot(0, 1);
+			dev = pci_get_domain_bus_and_slot(domain, 0, 1);
 			pci_read_config_dword(dev, 0x84, &amt);
 			pci_dev_put(dev);
 			memlen = (((amt >> 4) & 127) + 1) * 1024;
@@ -417,6 +418,6 @@ unsigned long riva_get_maxdclk(struct riva_par *par)
 	}
 	par->riva.flatPanel = (par->FlatPanel > 0) ? TRUE : FALSE;
 
-	RivaGetConfig(&par->riva, par->Chipset);
+	RivaGetConfig(&par->riva, par->pdev, par->Chipset);
 }
 
diff --git a/drivers/video/fbdev/riva/riva_hw.c b/drivers/video/fbdev/riva/riva_hw.c
index 8bdf37f..f42e658 100644
--- a/drivers/video/fbdev/riva/riva_hw.c
+++ b/drivers/video/fbdev/riva/riva_hw.c
@@ -1108,7 +1108,8 @@ static char nv3_get_param(nv3_fifo_info *res_info, nv3_sim_state * state, nv3_ar
     unsigned      pixelDepth,
     unsigned     *burst,
     unsigned     *lwm,
-    RIVA_HW_INST *chip
+    RIVA_HW_INST *chip,
+    struct pci_dev *pdev
 )
 {
     nv10_fifo_info fifo_data;
@@ -1116,8 +1117,9 @@ static char nv3_get_param(nv3_fifo_info *res_info, nv3_sim_state * state, nv3_ar
     unsigned int M, N, P, pll, MClk, NVClk;
     unsigned int uMClkPostDiv;
     struct pci_dev *dev;
+    u32 domain = pci_domain_nr(pdev->bus);
 
-    dev = pci_get_bus_and_slot(0, 3);
+    dev = pci_get_domain_bus_and_slot(domain, 0, 3);
     pci_read_config_dword(dev, 0x6C, &uMClkPostDiv);
     pci_dev_put(dev);
     uMClkPostDiv = (uMClkPostDiv >> 8) & 0xf;
@@ -1132,7 +1134,7 @@ static char nv3_get_param(nv3_fifo_info *res_info, nv3_sim_state * state, nv3_ar
     sim_data.enable_video   = 0;
     sim_data.enable_mp      = 0;
 
-    dev = pci_get_bus_and_slot(0, 1);
+    dev = pci_get_domain_bus_and_slot(domain, 0, 1);
     pci_read_config_dword(dev, 0x7C, &sim_data.memory_type);
     pci_dev_put(dev);
     sim_data.memory_type    = (sim_data.memory_type >> 12) & 1;
@@ -1234,6 +1236,7 @@ static char nv3_get_param(nv3_fifo_info *res_info, nv3_sim_state * state, nv3_ar
 (
     RIVA_HW_INST  *chip,
     RIVA_HW_STATE *state,
+    struct pci_dev *pdev,
     int            bpp,
     int            width,
     int            hDisplaySize,
@@ -1300,7 +1303,7 @@ static char nv3_get_param(nv3_fifo_info *res_info, nv3_sim_state * state, nv3_ar
                                           pixelDepth * 8,
                                          &(state->arbitration0),
                                          &(state->arbitration1),
-                                          chip);
+                                          chip, pdev);
             } else {
                 nv10UpdateArbitrationSettings(VClk, 
                                           pixelDepth * 8, 
@@ -2102,10 +2105,12 @@ static char nv3_get_param(nv3_fifo_info *res_info, nv3_sim_state * state, nv3_ar
 static void nv10GetConfig
 (
     RIVA_HW_INST *chip,
+    struct pci_dev *pdev,
     unsigned int chipset
 )
 {
     struct pci_dev* dev;
+    u32 domain = pci_domain_nr(pdev->bus);
     u32 amt;
 
 #ifdef __BIG_ENDIAN
@@ -2118,12 +2123,12 @@ static char nv3_get_param(nv3_fifo_info *res_info, nv3_sim_state * state, nv3_ar
      * Fill in chip configuration.
      */
     if(chipset == NV_CHIP_IGEFORCE2) {
-        dev = pci_get_bus_and_slot(0, 1);
+        dev = pci_get_domain_bus_and_slot(domain, 0, 1);
         pci_read_config_dword(dev, 0x7C, &amt);
         pci_dev_put(dev);
         chip->RamAmountKBytes = (((amt >> 6) & 31) + 1) * 1024;
     } else if(chipset == NV_CHIP_0x01F0) {
-        dev = pci_get_bus_and_slot(0, 1);
+        dev = pci_get_domain_bus_and_slot(domain, 0, 1);
         pci_read_config_dword(dev, 0x84, &amt);
         pci_dev_put(dev);
         chip->RamAmountKBytes = (((amt >> 4) & 127) + 1) * 1024;
@@ -2224,6 +2229,7 @@ static char nv3_get_param(nv3_fifo_info *res_info, nv3_sim_state * state, nv3_ar
 int RivaGetConfig
 (
     RIVA_HW_INST *chip,
+    struct pci_dev *pdev,
     unsigned int chipset
 )
 {
@@ -2245,7 +2251,7 @@ static char nv3_get_param(nv3_fifo_info *res_info, nv3_sim_state * state, nv3_ar
         case NV_ARCH_10:
         case NV_ARCH_20:
         case NV_ARCH_30:
-            nv10GetConfig(chip, chipset);
+            nv10GetConfig(chip, pdev, chipset);
             break;
         default:
             return (-1);
diff --git a/drivers/video/fbdev/riva/riva_hw.h b/drivers/video/fbdev/riva/riva_hw.h
index c2769f7..5e7b354 100644
--- a/drivers/video/fbdev/riva/riva_hw.h
+++ b/drivers/video/fbdev/riva/riva_hw.h
@@ -536,6 +536,7 @@
 (
     RIVA_HW_INST  *chip,
     RIVA_HW_STATE *state,
+    struct pci_dev *pdev,
     int            bpp,
     int            width,
     int            hDisplaySize,
@@ -546,7 +547,7 @@
 /*
  * External routines.
  */
-int RivaGetConfig(RIVA_HW_INST *, unsigned int);
+int RivaGetConfig(RIVA_HW_INST *chip, struct pci_dev *pdev, unsigned int c);
 /*
  * FIFO Free Count. Should attempt to yield processor if RIVA is busy.
  */
-- 
1.9.1

[PATCH V2 28/29] i7300_idle: remove unused file

[Sinan Kaya]

i7300_idle.h is not being called by any source file and contains calls to
pci_get_bus_and_slot() that we are trying to deprecate. Remove unused file.

Signed-off-by: Sinan Kaya <okaya@codeaurora.org>
---
 include/linux/i7300_idle.h | 84 ----------------------------------------------
 1 file changed, 84 deletions(-)
 delete mode 100644 include/linux/i7300_idle.h

diff --git a/include/linux/i7300_idle.h b/include/linux/i7300_idle.h
deleted file mode 100644
index 4dbe651..0000000
--- a/include/linux/i7300_idle.h
+++ /dev/null
@@ -1,84 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-
-#ifndef I7300_IDLE_H
-#define I7300_IDLE_H
-
-#include <linux/pci.h>
-
-/*
- * I/O AT controls (PCI bus 0 device 8 function 0)
- * DIMM controls (PCI bus 0 device 16 function 1)
- */
-#define IOAT_BUS 0
-#define IOAT_DEVFN PCI_DEVFN(8, 0)
-#define MEMCTL_BUS 0
-#define MEMCTL_DEVFN PCI_DEVFN(16, 1)
-
-struct fbd_ioat {
-	unsigned int vendor;
-	unsigned int ioat_dev;
-	unsigned int enabled;
-};
-
-/*
- * The i5000 chip-set has the same hooks as the i7300
- * but it is not enabled by default and must be manually
- * manually enabled with "forceload=1" because it is
- * only lightly validated.
- */
-
-static const struct fbd_ioat fbd_ioat_list[] = {
-	{PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_IOAT_CNB, 1},
-	{PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_IOAT, 0},
-	{0, 0}
-};
-
-/* table of devices that work with this driver */
-static const struct pci_device_id pci_tbl[] = {
-	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_FBD_CNB) },
-	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_5000_ERR) },
-	{ } /* Terminating entry */
-};
-
-/* Check for known platforms with I/O-AT */
-static inline int i7300_idle_platform_probe(struct pci_dev **fbd_dev,
-						struct pci_dev **ioat_dev,
-						int enable_all)
-{
-	int i;
-	struct pci_dev *memdev, *dmadev;
-
-	memdev = pci_get_bus_and_slot(MEMCTL_BUS, MEMCTL_DEVFN);
-	if (!memdev)
-		return -ENODEV;
-
-	for (i = 0; pci_tbl[i].vendor != 0; i++) {
-		if (memdev->vendor == pci_tbl[i].vendor &&
-		    memdev->device == pci_tbl[i].device) {
-			break;
-		}
-	}
-	if (pci_tbl[i].vendor == 0)
-		return -ENODEV;
-
-	dmadev = pci_get_bus_and_slot(IOAT_BUS, IOAT_DEVFN);
-	if (!dmadev)
-		return -ENODEV;
-
-	for (i = 0; fbd_ioat_list[i].vendor != 0; i++) {
-		if (dmadev->vendor == fbd_ioat_list[i].vendor &&
-		    dmadev->device == fbd_ioat_list[i].ioat_dev) {
-			if (!(fbd_ioat_list[i].enabled || enable_all))
-				continue;
-			if (fbd_dev)
-				*fbd_dev = memdev;
-			if (ioat_dev)
-				*ioat_dev = dmadev;
-
-			return 0;
-		}
-	}
-	return -ENODEV;
-}
-
-#endif
-- 
1.9.1

[PATCH V2 29/29] PCI: remove pci_get_bus_and_slot() function

[Sinan Kaya]

pci_get_bus_and_slot() is restrictive such that it assumes domain=0 as
where a PCI device is present. This restricts the device drivers to be
reused for other domain numbers.

Now that all users of pci_get_bus_and_slot() switched to
pci_get_domain_bus_and_slot(), it is now safe to remove this function.

Signed-off-by: Sinan Kaya <okaya@codeaurora.org>
---
 include/linux/pci.h | 8 --------
 1 file changed, 8 deletions(-)

diff --git a/include/linux/pci.h b/include/linux/pci.h
index d16a7c0..8c1b650 100644
--- a/include/linux/pci.h
+++ b/include/linux/pci.h
@@ -957,11 +957,6 @@ struct pci_dev *pci_get_subsys(unsigned int vendor, unsigned int device,
 struct pci_dev *pci_get_slot(struct pci_bus *bus, unsigned int devfn);
 struct pci_dev *pci_get_domain_bus_and_slot(int domain, unsigned int bus,
 					    unsigned int devfn);
-static inline struct pci_dev *pci_get_bus_and_slot(unsigned int bus,
-						   unsigned int devfn)
-{
-	return pci_get_domain_bus_and_slot(0, bus, devfn);
-}
 struct pci_dev *pci_get_class(unsigned int class, struct pci_dev *from);
 int pci_dev_present(const struct pci_device_id *ids);
 
@@ -1676,9 +1671,6 @@ static inline struct pci_bus *pci_find_next_bus(const struct pci_bus *from)
 static inline struct pci_dev *pci_get_slot(struct pci_bus *bus,
 						unsigned int devfn)
 { return NULL; }
-static inline struct pci_dev *pci_get_bus_and_slot(unsigned int bus,
-						unsigned int devfn)
-{ return NULL; }
 
 static inline int pci_domain_nr(struct pci_bus *bus) { return 0; }
 static inline struct pci_dev *pci_dev_get(struct pci_dev *dev) { return NULL; }
-- 
1.9.1