Re: [Linux-ia64] [PATCH] fix /proc/.../vm_info

From: Christian Hildner <christian.hildner_at_hob.de>
Date: 2002-12-13 18:45:37
David Mosberger schrieb:

> >>>>> On Thu, 12 Dec 2002 14:49:10 +0100, Christian Hildner <christian.hildner@hob.de> said:
>
>   Christian> Hi, in vm_info the information about the supported memory
>   Christian> attributes is wrong. The patch is based on 2.4.18, but it
>   Christian> should also work for 2.4.20 and 2.5.x. Please apply.
>
> I'd like to keep the output a bit more concise.  How about the attached
> patch (untested)?

I agree. But I would like a distinction between both UCs like "UC (001)" and "UC (100)".

Christian

>
>
>         --david
>
> ===== arch/ia64/kernel/palinfo.c 1.7 vs edited =====
> --- 1.7/arch/ia64/kernel/palinfo.c      Sun Dec  1 22:17:31 2002
> +++ edited/arch/ia64/kernel/palinfo.c   Thu Dec 12 11:54:24 2002
> @@ -101,26 +101,15 @@
>
>  #define RSE_HINTS_COUNT (sizeof(rse_hints)/sizeof(const char *))
>
> -/*
> - * The current revision of the Volume 2 (July 2000) of
> - * IA-64 Architecture Software Developer's Manual is wrong.
> - * Table 4-10 has invalid information concerning the ma field:
> - * Correct table is:
> - *      bit 0 - 001 - UC
> - *      bit 4 - 100 - UC
> - *      bit 5 - 101 - UCE
> - *      bit 6 - 110 - WC
> - *      bit 7 - 111 - NatPage
> - */
>  static const char *mem_attrib[]={
> -       "Write Back (WB)",              /* 000 */
> -       "Uncacheable (UC)",             /* 001 */
> -       "Reserved",                     /* 010 */
> -       "Reserved",                     /* 011 */
> -       "Uncacheable (UC)",             /* 100 */
> -       "Uncacheable Exported (UCE)",   /* 101 */
> -       "Write Coalescing (WC)",        /* 110 */
> -       "NaTPage"                       /* 111 */
> +       "WB",           /* 000 */
> +       "UC",           /* 001 */
> +       "010",          /* 010 */
> +       "011",          /* 011 */
> +       "UC",           /* 100 */
> +       "UCE",          /* 101 */
> +       "WC",           /* 110 */
> +       "NaTPage"       /* 111 */
>  };
>
>  /*
> @@ -315,6 +304,7 @@
>         pal_vm_info_2_u_t vm_info_2;
>         pal_tc_info_u_t tc_info;
>         ia64_ptce_info_t ptce;
> +       const char *sep;
>         int i, j;
>         s64 status;
>
> @@ -339,7 +329,14 @@
>
>         if (ia64_pal_mem_attrib(&attrib) != 0) return 0;
>
> -       p += sprintf(p, "Supported memory attributes    : %s\n", mem_attrib[attrib&0x7]);
> +       p += sprintf(p, "Supported memory attributes    : ");
> +       sep = "";
> +       for (i = 0; i < 8; i++) {
> +               if (attrib & (1 << i)) {
> +                       p += sprintf(p, "%s%s\n", sep, mem_attrib[i]);
> +                       sep = ", ";
> +               }
> +       }
>
>         if ((status=ia64_pal_vm_page_size(&tr_pages, &vw_pages)) !=0) {
>                 printk("ia64_pal_vm_page_size=%ld\n", status);
Received on Fri Dec 13 00:07:35 2002

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