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| author | Kyösti Mälkki <kyosti.malkki@gmail.com> | 2021-06-13 10:09:51 +0300 |
|---|---|---|
| committer | Kyösti Mälkki <kyosti.malkki@gmail.com> | 2022-06-26 21:40:17 +0000 |
| commit | d0525d424876ce5c4345ab2c73983915be2efb32 (patch) | |
| tree | 26e3fc85d05d66c17b2640391e566bea13fd11f9 /src/device | |
| parent | ad5fab23620a25d53d358dbde5f005bbe955e77b (diff) | |
resource: Add helpers for memory resources
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>
Diffstat (limited to 'src/device')
| -rw-r--r-- | src/device/device_util.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/src/device/device_util.c b/src/device/device_util.c index 383e17b0f6..7e31b43495 100644 --- a/src/device/device_util.c +++ b/src/device/device_util.c @@ -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); |