Messages in this thread | | | Subject | Re: [PATCH] acpi: add support for extended IRQ to PCI link | From | Sinan Kaya <> | Date | Mon, 9 Nov 2015 00:45:53 -0500 |
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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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