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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>
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
View File

@ -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);

56
src/include/device/device.h
View File

@ -333,6 +333,62 @@ const struct resource *fixed_mem_from_to_flags(struct device *dev, unsigned long
return fixed_mem_range_flags(dev, index, base, end - base, flags);
}
static inline
const struct resource *ram_range(struct device *dev, unsigned long index, uint64_t base,
uint64_t size)
{
return fixed_mem_range_flags(dev, index, base, size, IORESOURCE_CACHEABLE | IORESOURCE_STORED);
}
static inline
const struct resource *ram_from_to(struct device *dev, unsigned long index, uint64_t base,
uint64_t end)
{
if (end <= base)
return NULL;
return ram_range(dev, index, base, end - base);
}
static inline
const struct resource *reserved_ram_range(struct device *dev, unsigned long index,
uint64_t base, uint64_t size)
{
return fixed_mem_range_flags(dev, index, base, size, IORESOURCE_CACHEABLE |
IORESOURCE_RESERVE | IORESOURCE_STORED);
}
static inline
const struct resource *reserved_ram_from_to(struct device *dev, unsigned long index,
uint64_t base, uint64_t end)
{
if (end <= base)
return NULL;
return reserved_ram_range(dev, index, base, end - base);
}
static inline
const struct resource *mmio_range(struct device *dev, unsigned long index, uint64_t base,
uint64_t size)
{
return fixed_mem_range_flags(dev, index, base, size, IORESOURCE_RESERVE | IORESOURCE_STORED);
}
static inline
const struct resource *mmio_from_to(struct device *dev, unsigned long index, uint64_t base,
uint64_t end)
{
if (end <= base)
return NULL;
return mmio_range(dev, index, base, end - base);
}
const struct resource *lower_ram_end(struct device *dev, unsigned long index, uint64_t end);
const struct resource *upper_ram_end(struct device *dev, unsigned long index, uint64_t end);
#define bad_ram_range(...) reserved_ram_range(__VA_ARGS__)
#define uma_range(...) mmio_range(__VA_ARGS__)
#define uma_from_to(...) mmio_from_to(__VA_ARGS__)
static inline
const struct resource *fixed_io_range_flags(struct device *dev, unsigned long index,
uint16_t base, uint16_t size, unsigned long flags)