On Tue, 2008-03-18 at 15:06 -0500, Jerone Young wrote:
> # HG changeset patch
> # User Jerone Young <[EMAIL PROTECTED]>
> # Date 1205870472 18000
> # Branch merge
> # Node ID 4f90f7d25186f55bfb1503764af5264201df067f
> # Parent ac0fc9dfd78d2eddd083326e9b635a9286fc3b19
> Add ability to specify ram on command line for bamboo board model
>
> This patch adds the ability to now specify ram sizes on the command line.
> Due to the nature of the code there are restictions on exactly how
> much ram and the multiple that the size must match.
>
> Signed-off-by: Jerone Young <[EMAIL PROTECTED]>
>
> diff --git a/qemu/hw/ppc440_bamboo.c b/qemu/hw/ppc440_bamboo.c
> --- a/qemu/hw/ppc440_bamboo.c
> +++ b/qemu/hw/ppc440_bamboo.c
> @@ -15,6 +15,9 @@
>
> #define BINARY_DEVICE_TREE_FILE "bamboo.dtb"
>
> +#define bytes_to_mb(a) (a>>20)
> +#define mb_to_bytes(a) (a<<20)
> +
> /* PPC 440 refrence demo board
> *
> * 440 PowerPC CPU
> @@ -28,7 +31,7 @@ void bamboo_init(ram_addr_t ram_size, in
> const char *cpu_model)
> {
> char buf[1024];
> - target_phys_addr_t ram_bases[2], ram_sizes[2];
> + target_phys_addr_t ram_bases[2], ram_sizes[2];
> qemu_irq *pic;
> CPUState *env;
> target_ulong ep=0;
Here you have added a trailing space.
> @@ -40,32 +43,39 @@ void bamboo_init(ram_addr_t ram_size, in
> target_ulong dt_base=0;
> void *fdt;
> int ret;
> + int ram_stick_sizes[] = {256, 128, 64, 32, 16, 8 }; /* in Mega bytes */
> + ram_addr_t tmp_ram_size;
> + int i=0, k=0;
Define ram_stick_sizes[] in MB and then remove all the shifting inside
the loops.
> uint32_t cpu_freq;
> uint32_t timebase_freq;
>
> printf("%s: START\n", __func__);
>
> - /* Setup Memory */
> - if (ram_size) {
> - printf("Ram size specified on command line is %i bytes\n",
> - (int)ram_size);
> - printf("WARNING: RAM is hard coded to 144MB\n");
> - }
> - else {
> - printf("Using defualt ram size of %iMB\n",
> - ((int)ram_size/1024)/1024);
> + /* Setup Memory */
> + printf("Ram size passed is: %i MB\n",
> + bytes_to_mb((int)ram_size));
> +
> + tmp_ram_size = ram_size;
> +
> + for (i=0; i < (sizeof(ram_sizes)/sizeof(ram_sizes[0])); i++)
> + {
> + for (k=0; k <
> (sizeof(ram_stick_sizes)/sizeof(ram_stick_sizes[0])); k++)
> + {
> + if ((bytes_to_mb(ram_size)/ram_stick_sizes[k]) > 0)
> + {
Don't divide, just use a logical comparison.
Also, put all the open-braces on the previous lines.
> + ram_sizes[i] = mb_to_bytes(ram_stick_sizes[k]);
> + tmp_ram_size -= mb_to_bytes(ram_stick_sizes[k]);
> + break;
> + }
> + }
> }
> - /* Each bank can only have memory in configurations of
> - * 16MB, 32MB, 64MB, 128MB, or 256MB
> - */
> - ram_bases[0] = 0x0;
> - ram_sizes[0] = 0x08000000;
> - ram_bases[1] = 0x0;
> - ram_sizes[1] = 0x01000000;
> -
> - printf("Ram size of domain is %d bytes\n", (int)ram_size);
> + if (tmp_ram_size) {
> + printf("WARNING: %i MB left over memory is ram\n",
> + bytes_to_mb((int)tmp_ram_size));
> + ram_size -= tmp_ram_size;
> + }
>
> /* Setup CPU */
> env = cpu_ppc_init("440");
Remove tmp_ram_size completely. Just decrement ram_size in the loop and
check if it's non-zero at the end.
--
Hollis Blanchard
IBM Linux Technology Center
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