Re: [PATCH] acpi: add support for extended IRQ to PCI link
From: Sinan Kaya
Date: Mon Nov 09 2015 - 00:46:07 EST
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
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