Re: [Xen-devel] [PATCH V3 01/10] arm/gic-v3: Use acpi_table_parse_madt() to parse MADT subtables

[Stefano Stabellini <sstabellini@xxxxxxxxxx>]

On Mon, 27 Jun 2016, Shanker Donthineni wrote:
> The function acpi_table_parse_madt() does the same functionality as
> function acpi_parse_entries() expect it takes a few arguments.
> 
> Signed-off-by: Shanker Donthineni <shankerd@xxxxxxxxxxxxxx>

I committed patches 1 to 7


>  xen/arch/arm/gic-v3.c | 27 ++++++---------------------
>  1 file changed, 6 insertions(+), 21 deletions(-)
> 
> diff --git a/xen/arch/arm/gic-v3.c b/xen/arch/arm/gic-v3.c
> index 8d3f149..166f1c1 100644
> --- a/xen/arch/arm/gic-v3.c
> +++ b/xen/arch/arm/gic-v3.c
> @@ -1390,28 +1390,15 @@ gic_acpi_get_madt_redistributor_num(struct 
> acpi_subtable_header *header,
>  
>  static void __init gicv3_acpi_init(void)
>  {
> -    struct acpi_table_header *table;
>      struct rdist_region *rdist_regs;
> -    acpi_status status;
>      int count, i;
>  
> -    status = acpi_get_table(ACPI_SIG_MADT, 0, &table);
> -
> -    if ( ACPI_FAILURE(status) )
> -    {
> -        const char *msg = acpi_format_exception(status);
> -
> -        panic("GICv3: Failed to get MADT table, %s", msg);
> -    }
> -
>      /*
>       * Find distributor base address. We expect one distributor entry since
>       * ACPI 5.0 spec neither support multi-GIC instances nor GIC cascade.
>       */
> -    count = acpi_parse_entries(ACPI_SIG_MADT, sizeof(struct acpi_table_madt),
> -                               gic_acpi_parse_madt_distributor, table,
> -                               ACPI_MADT_TYPE_GENERIC_DISTRIBUTOR, 0);
> -
> +    count = acpi_table_parse_madt(ACPI_MADT_TYPE_GENERIC_DISTRIBUTOR,
> +                                  gic_acpi_parse_madt_distributor, 0);
>      if ( count <= 0 )
>          panic("GICv3: No valid GICD entries exists");
>  
> @@ -1420,9 +1407,8 @@ static void __init gicv3_acpi_init(void)
>                dbase);
>  
>      /* Get number of redistributor */
> -    count = acpi_parse_entries(ACPI_SIG_MADT, sizeof(struct acpi_table_madt),
> -                               gic_acpi_get_madt_redistributor_num, table,
> -                               ACPI_MADT_TYPE_GENERIC_REDISTRIBUTOR, 0);
> +    count = acpi_table_parse_madt(ACPI_MADT_TYPE_GENERIC_REDISTRIBUTOR,
> +                                  gic_acpi_get_madt_redistributor_num, 0);
>      if ( count <= 0 )
>          panic("GICv3: No valid GICR entries exists");
>  
> @@ -1458,9 +1444,8 @@ static void __init gicv3_acpi_init(void)
>      gicv3.rdist_regions= rdist_regs;
>  
>      /* Collect CPU base addresses */
> -    count = acpi_parse_entries(ACPI_SIG_MADT, sizeof(struct acpi_table_madt),
> -                               gic_acpi_parse_madt_cpu, table,
> -                               ACPI_MADT_TYPE_GENERIC_INTERRUPT, 0);
> +    count = acpi_table_parse_madt(ACPI_MADT_TYPE_GENERIC_INTERRUPT,
> +                                  gic_acpi_parse_madt_cpu, 0);
>      if ( count <= 0 )
>          panic("GICv3: No valid GICC entries exists");
>  
> -- 
> 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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