diff options
| author | Kyösti Mälkki <kyosti.malkki@gmail.com> | 2012-07-26 23:51:20 +0300 |
|---|---|---|
| committer | Anton Kochkov <anton.kochkov@gmail.com> | 2012-08-01 10:57:17 +0200 |
| commit | 1ec5e744c63938aa75e80e8d7548d05e998660a2 (patch) | |
| tree | 237dca4e11c4f549bf31aa3c5a8a4f584fe52fa7 /src/include/device | |
| parent | 51676b14e8cfd5bbabf487f659f11704f17f6d0f (diff) | |
Intel Sandybridge: add reserved memory as resources
Reserved memory resources will get removed from memory table at
the end of write_coreboot_table(),
Change-Id: I02711b4be4f25054bd3361295d8d4dc996b2eb3e
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/1372
Tested-by: build bot (Jenkins)
Reviewed-by: Anton Kochkov <anton.kochkov@gmail.com>
Diffstat (limited to 'src/include/device')
| -rw-r--r-- | src/include/device/device.h | 12 | ||||
| -rw-r--r-- | src/include/device/resource.h | 1 |
2 files changed, 11 insertions, 2 deletions
diff --git a/src/include/device/device.h b/src/include/device/device.h index 1515b45e02..eaf84c6d0a 100644 --- a/src/include/device/device.h +++ b/src/include/device/device.h @@ -173,17 +173,25 @@ unsigned int scan_static_bus(device_t bus, unsigned int max); void fixed_mem_resource(device_t dev, unsigned long index, unsigned long basek, unsigned long sizek, unsigned long type); + +/* It is the caller's responsibility to adjust regions such that ram_resource() + * and mmio_resource() do not overlap. + * + * Current MTRR setup creates exclusive uncacheable holes for uma_resource() + * only and these are allowed to overlap any ram_resource(). This approach + * is used for all UMA except Intel Sandy/IvyBridge. + */ #define ram_resource(dev, idx, basek, sizek) \ fixed_mem_resource(dev, idx, basek, sizek, IORESOURCE_CACHEABLE) #define bad_ram_resource(dev, idx, basek, sizek) \ - fixed_mem_resource(dev, idx, basek, sizek, IORESOURCE_RESERVE | IORESOURCE_CACHEABLE ) + fixed_mem_resource(dev, idx, basek, sizek, IORESOURCE_RESERVE | IORESOURCE_IGNORE_MTRR) #define uma_resource(dev, idx, basek, sizek) \ fixed_mem_resource(dev, idx, basek, sizek, IORESOURCE_RESERVE | IORESOURCE_UMA_FB) #define mmio_resource(dev, idx, basek, sizek) \ - fixed_mem_resource(dev, idx, basek, sizek, IORESOURCE_RESERVE) + fixed_mem_resource(dev, idx, basek, sizek, IORESOURCE_RESERVE | IORESOURCE_IGNORE_MTRR) void tolm_test(void *gp, struct device *dev, struct resource *new); u32 find_pci_tolm(struct bus *bus); diff --git a/src/include/device/resource.h b/src/include/device/resource.h index e667f91c9d..c28ada5242 100644 --- a/src/include/device/resource.h +++ b/src/include/device/resource.h @@ -21,6 +21,7 @@ */ #define IORESOURCE_BRIDGE 0x00080000 /* The IO resource has a bus below it. */ #define IORESOURCE_UMA_FB 0x00100000 /* UMA framebuffer */ +#define IORESOURCE_IGNORE_MTRR 0x00200000 /* The resource does not affect MTRR setup. */ #define IORESOURCE_RESERVE 0x10000000 /* The resource needs to be reserved in the coreboot table */ #define IORESOURCE_STORED 0x20000000 /* The IO resource assignment has been stored in the device */ |