Re: [ACPI] [PATCH] PNPACPI: fix types when decoding ACPI resources [resend]

[Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>]

Hi Bjorn,

Thank you very much for the new patch
and I'm very sorry for troubling you.

The patch looks very good to me.

Thanks,
Kenji Kaneshige


Bjorn Helgaas wrote:
> On Tuesday 02 August 2005 7:05 pm, Kenji Kaneshige wrote:
> 
>>This breaks the following patch that is already included into -mm
>>tree.
>>
>>http://sourceforge.net/mailarchive/forum.php?thread_id=7844247&forum_id=6102
>>
>>I think we need to check if acpi_register_gsi() succeeded or not.
> 
> 
> You're absolutely right.  I was just based off a Linus tree, non -mm,
> and didn't notice that your patch conflicted.  How about the following
> (based on 2.6.13-rc4-mm1)?  I moved the acpi_register_gsi() into
> pnpacpi_parse_allocated_irqresource(), which I think is nice because
> the test for failure is right next to the call.
> 
> 
> 
> PNPACPI: fix types when decoding ACPI resources
> 
> Use types that match the ACPI resource structures.  Previously
> the u64 value from an RSTYPE_ADDRESS64 was passed as an int,
> which corrupts the value.
> 
> This is one of the things that prevents 8250_pnp from working
> on HP ia64 boxes.  After 8250_pnp works, we will be able to
> remove 8250_acpi.c.
> 
> Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
> 
> Index: work-mm/drivers/pnp/pnpacpi/rsparser.c
> ===================================================================
> --- work-mm.orig/drivers/pnp/pnpacpi/rsparser.c	2005-08-02 09:39:25.000000000 -0600
> +++ work-mm/drivers/pnp/pnpacpi/rsparser.c	2005-08-03 09:31:05.000000000 -0600
> @@ -73,25 +73,28 @@
>  }
>  
>  static void
> -pnpacpi_parse_allocated_irqresource(struct pnp_resource_table * res, int irq)
> +pnpacpi_parse_allocated_irqresource(struct pnp_resource_table * res, u32 gsi,
> +	int edge_level, int active_high_low)
>  {
>  	int i = 0;
> +	int irq;
>  	while (!(res->irq_resource[i].flags & IORESOURCE_UNSET) &&
>  			i < PNP_MAX_IRQ)
>  		i++;
>  	if (i < PNP_MAX_IRQ) {
>  		res->irq_resource[i].flags = IORESOURCE_IRQ;  //Also clears _UNSET flag
> +		irq = acpi_register_gsi(gsi, edge_level, active_high_low);
>  		if (irq < 0) {
>  			res->irq_resource[i].flags |= IORESOURCE_DISABLED;
>  			return;
>  		}
> -		res->irq_resource[i].start =(unsigned long) irq;
> -		res->irq_resource[i].end = (unsigned long) irq;
> +		res->irq_resource[i].start = irq;
> +		res->irq_resource[i].end = irq;
>  	}
>  }
>  
>  static void
> -pnpacpi_parse_allocated_dmaresource(struct pnp_resource_table * res, int dma)
> +pnpacpi_parse_allocated_dmaresource(struct pnp_resource_table * res, u32 dma)
>  {
>  	int i = 0;
>  	while (i < PNP_MAX_DMA &&
> @@ -103,14 +106,14 @@
>  			res->dma_resource[i].flags |= IORESOURCE_DISABLED;
>  			return;
>  		}
> -		res->dma_resource[i].start =(unsigned long) dma;
> -		res->dma_resource[i].end = (unsigned long) dma;
> +		res->dma_resource[i].start = dma;
> +		res->dma_resource[i].end = dma;
>  	}
>  }
>  
>  static void
>  pnpacpi_parse_allocated_ioresource(struct pnp_resource_table * res,
> -	int io, int len)
> +	u32 io, u32 len)
>  {
>  	int i = 0;
>  	while (!(res->port_resource[i].flags & IORESOURCE_UNSET) &&
> @@ -122,14 +125,14 @@
>  			res->port_resource[i].flags |= IORESOURCE_DISABLED;
>  			return;
>  		}
> -		res->port_resource[i].start = (unsigned long) io;
> -		res->port_resource[i].end = (unsigned long)(io + len - 1);
> +		res->port_resource[i].start = io;
> +		res->port_resource[i].end = io + len - 1;
>  	}
>  }
>  
>  static void
>  pnpacpi_parse_allocated_memresource(struct pnp_resource_table * res,
> -	int mem, int len)
> +	u64 mem, u64 len)
>  {
>  	int i = 0;
>  	while (!(res->mem_resource[i].flags & IORESOURCE_UNSET) &&
> @@ -141,8 +144,8 @@
>  			res->mem_resource[i].flags |= IORESOURCE_DISABLED;
>  			return;
>  		}
> -		res->mem_resource[i].start = (unsigned long) mem;
> -		res->mem_resource[i].end = (unsigned long)(mem + len - 1);
> +		res->mem_resource[i].start = mem;
> +		res->mem_resource[i].end = mem + len - 1;
>  	}
>  }
>  
> @@ -156,10 +159,10 @@
>  	case ACPI_RSTYPE_IRQ:
>  		if ((res->data.irq.number_of_interrupts > 0) &&
>  			valid_IRQ(res->data.irq.interrupts[0])) {
> -			pnpacpi_parse_allocated_irqresource(res_table, 
> -				acpi_register_gsi(res->data.irq.interrupts[0],
> -					res->data.irq.edge_level,
> -					res->data.irq.active_high_low));
> +			pnpacpi_parse_allocated_irqresource(res_table,
> +				res->data.irq.interrupts[0],
> +				res->data.irq.edge_level,
> +				res->data.irq.active_high_low);
>  			pcibios_penalize_isa_irq(res->data.irq.interrupts[0], 1);
>  		}
>  		break;
> @@ -167,10 +170,10 @@
>  	case ACPI_RSTYPE_EXT_IRQ:
>  		if ((res->data.extended_irq.number_of_interrupts > 0) &&
>  			valid_IRQ(res->data.extended_irq.interrupts[0])) {
> -			pnpacpi_parse_allocated_irqresource(res_table, 
> -				acpi_register_gsi(res->data.extended_irq.interrupts[0],
> -					res->data.extended_irq.edge_level,
> -					res->data.extended_irq.active_high_low));
> +			pnpacpi_parse_allocated_irqresource(res_table,
> +				res->data.extended_irq.interrupts[0],
> +				res->data.extended_irq.edge_level,
> +				res->data.extended_irq.active_high_low);
>  			pcibios_penalize_isa_irq(res->data.extended_irq.interrupts[0], 1);
>  		}
>  		break;
>