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resource: Add helpers for memory resources

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These should help to make the reviews as platforms
remove KiB scaling.

Change-Id: I40644f873c0ea993353753c0ef40df4c83233355
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/55474
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Nico Huber <nico.h@gmx.de>
This commit is contained in:
Kyösti Mälkki
2021-06-13 10:09:51 +03:00
parent ad5fab2362
commit d0525d4248
2 changed files with 71 additions and 0 deletions
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15
src/device/device_util.c
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@@ -841,6 +841,21 @@ const struct resource *fixed_resource_range_idx(struct device *dev, unsigned lon
return resource;
}
const struct resource *lower_ram_end(struct device *dev, unsigned long index, uint64_t end)
{
return ram_from_to(dev, index, 0, end);
}
const struct resource *upper_ram_end(struct device *dev, unsigned long index, uint64_t end)
{
if (end <= 4ull * GiB)
return NULL;
printk(BIOS_INFO, "Available memory above 4GB: %lluM\n", (end - 4ull * GiB) / MiB);
return ram_from_to(dev, index, 4ull * GiB, end);
}
void mmconf_resource(struct device *dev, unsigned long index)
{
struct resource *resource = new_resource(dev, index);