diff mbox series

[v13,11/21] PCI: microchip: Add num_events field to struct plda_pcie_rp

Message ID 20231214072839.2367-12-minda.chen@starfivetech.com (mailing list archive)
State Superseded
Headers show
Series Refactoring Microchip PCIe driver and add StarFive PCIe | expand

Commit Message

Minda Chen Dec. 14, 2023, 7:28 a.m. UTC 
The event num is different in other platform. For re-using interrupt
process codes, replace macros with variable.

Signed-off-by: Minda Chen <minda.chen@starfivetech.com>
Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
---
 drivers/pci/controller/plda/pcie-microchip-host.c | 8 +++++---
 drivers/pci/controller/plda/pcie-plda.h           | 1 +
 2 files changed, 6 insertions(+), 3 deletions(-)

Comments

Lorenzo Pieralisi Dec. 27, 2023, 3:55 p.m. UTC | #1 
On Thu, Dec 14, 2023 at 03:28:29PM +0800, Minda Chen wrote:
> The event num is different in other platform. For re-using interrupt
> process codes, replace macros with variable.

"The number of events is different across platforms. In order to
share interrupt processing code, add a variable that defines the
number of events so that it can be set per-platform instead of
hardcoding it".

Lorenzo

> 
> Signed-off-by: Minda Chen <minda.chen@starfivetech.com>
> Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
> ---
>  drivers/pci/controller/plda/pcie-microchip-host.c | 8 +++++---
>  drivers/pci/controller/plda/pcie-plda.h           | 1 +
>  2 files changed, 6 insertions(+), 3 deletions(-)
> 
> diff --git a/drivers/pci/controller/plda/pcie-microchip-host.c b/drivers/pci/controller/plda/pcie-microchip-host.c
> index 506e6eeadc76..7b3f4f74745d 100644
> --- a/drivers/pci/controller/plda/pcie-microchip-host.c
> +++ b/drivers/pci/controller/plda/pcie-microchip-host.c
> @@ -654,7 +654,7 @@ static void plda_handle_event(struct irq_desc *desc)
>  
>  	events = mc_get_events(port);
>  
> -	for_each_set_bit(bit, &events, NUM_EVENTS)
> +	for_each_set_bit(bit, &events, port->num_events)
>  		generic_handle_domain_irq(port->event_domain, bit);
>  
>  	chained_irq_exit(chip, desc);
> @@ -817,7 +817,8 @@ static int plda_pcie_init_irq_domains(struct plda_pcie_rp *port)
>  		return -EINVAL;
>  	}
>  
> -	port->event_domain = irq_domain_add_linear(pcie_intc_node, NUM_EVENTS,
> +	port->event_domain = irq_domain_add_linear(pcie_intc_node,
> +						   port->num_events,
>  						   &plda_event_domain_ops,
>  						   port);
>  	if (!port->event_domain) {
> @@ -921,7 +922,7 @@ static int plda_init_interrupts(struct platform_device *pdev, struct plda_pcie_r
>  	if (irq < 0)
>  		return -ENODEV;
>  
> -	for (i = 0; i < NUM_EVENTS; i++) {
> +	for (i = 0; i < port->num_events; i++) {
>  		event_irq = irq_create_mapping(port->event_domain, i);
>  		if (!event_irq) {
>  			dev_err(dev, "failed to map hwirq %d\n", i);
> @@ -1013,6 +1014,7 @@ static int mc_host_probe(struct platform_device *pdev)
>  
>  	bridge_base_addr = port->axi_base_addr + MC_PCIE_BRIDGE_ADDR;
>  	plda->bridge_addr = bridge_base_addr;
> +	plda->num_events = NUM_EVENTS;
>  
>  	/* Allow enabling MSI by disabling MSI-X */
>  	val = readl(bridge_base_addr + PCIE_PCI_IRQ_DW0);
> diff --git a/drivers/pci/controller/plda/pcie-plda.h b/drivers/pci/controller/plda/pcie-plda.h
> index 3deefd35fa5a..e3d35cef9894 100644
> --- a/drivers/pci/controller/plda/pcie-plda.h
> +++ b/drivers/pci/controller/plda/pcie-plda.h
> @@ -118,6 +118,7 @@ struct plda_pcie_rp {
>  	raw_spinlock_t lock;
>  	struct plda_msi msi;
>  	void __iomem *bridge_addr;
> +	int num_events;
>  };
>  
>  void plda_pcie_setup_window(void __iomem *bridge_base_addr, u32 index,
> -- 
> 2.17.1
>
Minda Chen Dec. 29, 2023, 3:46 a.m. UTC | #2 
On 2023/12/27 23:55, Lorenzo Pieralisi wrote:
> On Thu, Dec 14, 2023 at 03:28:29PM +0800, Minda Chen wrote:
>> The event num is different in other platform. For re-using interrupt
>> process codes, replace macros with variable.
> 
> "The number of events is different across platforms. In order to
> share interrupt processing code, add a variable that defines the
> number of events so that it can be set per-platform instead of
> hardcoding it".
> 
> Lorenzo
> 
Thanks for reviewing. Happy new year!

All the maintainers:
 Happy new year!

>> 
>> Signed-off-by: Minda Chen <minda.chen@starfivetech.com>
>> Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
>> ---
>>  drivers/pci/controller/plda/pcie-microchip-host.c | 8 +++++---
>>  drivers/pci/controller/plda/pcie-plda.h           | 1 +
>>  2 files changed, 6 insertions(+), 3 deletions(-)
>> 
>> diff --git a/drivers/pci/controller/plda/pcie-microchip-host.c b/drivers/pci/controller/plda/pcie-microchip-host.c
>> index 506e6eeadc76..7b3f4f74745d 100644
>> --- a/drivers/pci/controller/plda/pcie-microchip-host.c
>> +++ b/drivers/pci/controller/plda/pcie-microchip-host.c
>> @@ -654,7 +654,7 @@ static void plda_handle_event(struct irq_desc *desc)
>>  
>>  	events = mc_get_events(port);
>>  
>> -	for_each_set_bit(bit, &events, NUM_EVENTS)
>> +	for_each_set_bit(bit, &events, port->num_events)
>>  		generic_handle_domain_irq(port->event_domain, bit);
>>  
>>  	chained_irq_exit(chip, desc);
>> @@ -817,7 +817,8 @@ static int plda_pcie_init_irq_domains(struct plda_pcie_rp *port)
>>  		return -EINVAL;
>>  	}
>>  
>> -	port->event_domain = irq_domain_add_linear(pcie_intc_node, NUM_EVENTS,
>> +	port->event_domain = irq_domain_add_linear(pcie_intc_node,
>> +						   port->num_events,
>>  						   &plda_event_domain_ops,
>>  						   port);
>>  	if (!port->event_domain) {
>> @@ -921,7 +922,7 @@ static int plda_init_interrupts(struct platform_device *pdev, struct plda_pcie_r
>>  	if (irq < 0)
>>  		return -ENODEV;
>>  
>> -	for (i = 0; i < NUM_EVENTS; i++) {
>> +	for (i = 0; i < port->num_events; i++) {
>>  		event_irq = irq_create_mapping(port->event_domain, i);
>>  		if (!event_irq) {
>>  			dev_err(dev, "failed to map hwirq %d\n", i);
>> @@ -1013,6 +1014,7 @@ static int mc_host_probe(struct platform_device *pdev)
>>  
>>  	bridge_base_addr = port->axi_base_addr + MC_PCIE_BRIDGE_ADDR;
>>  	plda->bridge_addr = bridge_base_addr;
>> +	plda->num_events = NUM_EVENTS;
>>  
>>  	/* Allow enabling MSI by disabling MSI-X */
>>  	val = readl(bridge_base_addr + PCIE_PCI_IRQ_DW0);
>> diff --git a/drivers/pci/controller/plda/pcie-plda.h b/drivers/pci/controller/plda/pcie-plda.h
>> index 3deefd35fa5a..e3d35cef9894 100644
>> --- a/drivers/pci/controller/plda/pcie-plda.h
>> +++ b/drivers/pci/controller/plda/pcie-plda.h
>> @@ -118,6 +118,7 @@ struct plda_pcie_rp {
>>  	raw_spinlock_t lock;
>>  	struct plda_msi msi;
>>  	void __iomem *bridge_addr;
>> +	int num_events;
>>  };
>>  
>>  void plda_pcie_setup_window(void __iomem *bridge_base_addr, u32 index,
>> -- 
>> 2.17.1
>>
diff mbox series

Patch

diff --git a/drivers/pci/controller/plda/pcie-microchip-host.c b/drivers/pci/controller/plda/pcie-microchip-host.c
index 506e6eeadc76..7b3f4f74745d 100644
--- a/drivers/pci/controller/plda/pcie-microchip-host.c
+++ b/drivers/pci/controller/plda/pcie-microchip-host.c
@@ -654,7 +654,7 @@  static void plda_handle_event(struct irq_desc *desc)
 
 	events = mc_get_events(port);
 
-	for_each_set_bit(bit, &events, NUM_EVENTS)
+	for_each_set_bit(bit, &events, port->num_events)
 		generic_handle_domain_irq(port->event_domain, bit);
 
 	chained_irq_exit(chip, desc);
@@ -817,7 +817,8 @@  static int plda_pcie_init_irq_domains(struct plda_pcie_rp *port)
 		return -EINVAL;
 	}
 
-	port->event_domain = irq_domain_add_linear(pcie_intc_node, NUM_EVENTS,
+	port->event_domain = irq_domain_add_linear(pcie_intc_node,
+						   port->num_events,
 						   &plda_event_domain_ops,
 						   port);
 	if (!port->event_domain) {
@@ -921,7 +922,7 @@  static int plda_init_interrupts(struct platform_device *pdev, struct plda_pcie_r
 	if (irq < 0)
 		return -ENODEV;
 
-	for (i = 0; i < NUM_EVENTS; i++) {
+	for (i = 0; i < port->num_events; i++) {
 		event_irq = irq_create_mapping(port->event_domain, i);
 		if (!event_irq) {
 			dev_err(dev, "failed to map hwirq %d\n", i);
@@ -1013,6 +1014,7 @@  static int mc_host_probe(struct platform_device *pdev)
 
 	bridge_base_addr = port->axi_base_addr + MC_PCIE_BRIDGE_ADDR;
 	plda->bridge_addr = bridge_base_addr;
+	plda->num_events = NUM_EVENTS;
 
 	/* Allow enabling MSI by disabling MSI-X */
 	val = readl(bridge_base_addr + PCIE_PCI_IRQ_DW0);
diff --git a/drivers/pci/controller/plda/pcie-plda.h b/drivers/pci/controller/plda/pcie-plda.h
index 3deefd35fa5a..e3d35cef9894 100644
--- a/drivers/pci/controller/plda/pcie-plda.h
+++ b/drivers/pci/controller/plda/pcie-plda.h
@@ -118,6 +118,7 @@  struct plda_pcie_rp {
 	raw_spinlock_t lock;
 	struct plda_msi msi;
 	void __iomem *bridge_addr;
+	int num_events;
 };
 
 void plda_pcie_setup_window(void __iomem *bridge_base_addr, u32 index,