Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > linux.kernel > #1265372

Re: [PATCH] acpi: add support for extended IRQ to PCI link

Show all headers | View raw

On 11/9/2015 12:24 AM, Jiang Liu wrote:
>> +	u32 possible[ACPI_PCI_LINK_MAX_POSSIBLE];
>> >  	u8 initialized:1;
>> >  	u8 reserved:7;
>> >  };
> Hi Sinan,
> 	This data structure become some sort of big, any idea to reduce
> memory consumption?
> Thanks,
> Gerry
>
Hi Gerry,

There are two constants in the code.

#define ACPI_PCI_LINK_MAX_POSSIBLE	16

I changed the data type above. Previously it was consuming 16 bytes now 
64 bytes.

The second one is this.

#define ACPI_MAX_IRQS 256

I changed ACPI_MAX_IRQS to 1020 from 256. Let's assume 1024.

I'm concerned about this though since you warned. This used to consume 
1024 bytes now 4096 bytes.

static int acpi_irq_penalty[ACPI_MAX_IRQS] = {
	PIRQ_PENALTY_ISA_ALWAYS,	/* IRQ0 timer */
...
}

Sinan

-- 
Sinan Kaya
Qualcomm Technologies, Inc. on behalf of Qualcomm Innovation Center, Inc.
Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum, a 
Linux Foundation Collaborative Project
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

Back to linux.kernel | Previous | Next — Previous in thread | Next in thread | Find similar | Unroll thread

Thread

[PATCH] acpi: add support for extended IRQ to PCI link Sinan Kaya <okaya@codeaurora.org> - 2015-11-08 17:10 +0100
  Re: [PATCH] acpi: add support for extended IRQ to PCI link Timur Tabi <timur@codeaurora.org> - 2015-11-08 17:20 +0100
    Re: [PATCH] acpi: add support for extended IRQ to PCI link Timur Tabi <timur@codeaurora.org> - 2015-11-09 01:10 +0100
      Re: [PATCH] acpi: add support for extended IRQ to PCI link "Rafael J. Wysocki" <rjw@rjwysocki.net> - 2015-11-09 22:20 +0100
    Re: [PATCH] acpi: add support for extended IRQ to PCI link Sinan Kaya <okaya@codeaurora.org> - 2015-11-09 01:10 +0100
  Re: [PATCH] acpi: add support for extended IRQ to PCI link Andy Shevchenko <andy.shevchenko@gmail.com> - 2015-11-08 21:40 +0100
    Re: [PATCH] acpi: add support for extended IRQ to PCI link Sinan Kaya <okaya@codeaurora.org> - 2015-11-09 23:40 +0100
  Re: [PATCH] acpi: add support for extended IRQ to PCI link Jiang Liu <jiang.liu@linux.intel.com> - 2015-11-09 06:30 +0100
    Re: [PATCH] acpi: add support for extended IRQ to PCI link Sinan Kaya <okaya@codeaurora.org> - 2015-11-09 06:50 +0100
      Re: [PATCH] acpi: add support for extended IRQ to PCI link Jiang Liu <jiang.liu@linux.intel.com> - 2015-11-09 09:50 +0100
      Re: [PATCH] acpi: add support for extended IRQ to PCI link Timur Tabi <timur@codeaurora.org> - 2015-11-09 15:00 +0100
        Re: [PATCH] acpi: add support for extended IRQ to PCI link Sinan Kaya <okaya@codeaurora.org> - 2015-11-09 17:30 +0100

csiph-web