diff options
Diffstat (limited to 'src/northbridge')
| -rw-r--r-- | src/northbridge/intel/common/fixed_bars.h | 66 |
1 files changed, 66 insertions, 0 deletions
diff --git a/src/northbridge/intel/common/fixed_bars.h b/src/northbridge/intel/common/fixed_bars.h index e9c63c5b7d..8a0d9dc1b6 100644 --- a/src/northbridge/intel/common/fixed_bars.h +++ b/src/northbridge/intel/common/fixed_bars.h @@ -9,6 +9,7 @@ _Static_assert(CONFIG_FIXED_EPBAR_MMIO_BASE != 0, "EPBAR base address is zero" #include <stdint.h> +/* Deprecated in favor of the read/write accessors below */ #define MCHBAR8(x) (*((volatile u8 *)((uintptr_t)CONFIG_FIXED_MCHBAR_MMIO_BASE + (x)))) #define MCHBAR16(x) (*((volatile u16 *)((uintptr_t)CONFIG_FIXED_MCHBAR_MMIO_BASE + (x)))) #define MCHBAR32(x) (*((volatile u32 *)((uintptr_t)CONFIG_FIXED_MCHBAR_MMIO_BASE + (x)))) @@ -31,4 +32,69 @@ _Static_assert(CONFIG_FIXED_EPBAR_MMIO_BASE != 0, "EPBAR base address is zero" #define EPBAR16(x) (*((volatile u16 *)((uintptr_t)CONFIG_FIXED_EPBAR_MMIO_BASE + (x)))) #define EPBAR32(x) (*((volatile u32 *)((uintptr_t)CONFIG_FIXED_EPBAR_MMIO_BASE + (x)))) +/* The *bar_{read,write}X macros will be replaced with functions in follow-ups */ +#define _bar_clrsetbits_impl(base, addr, clear, set, bits) \ + base##bar_write##bits(addr, \ + (base##bar_read##bits(addr) & ~(uint##bits##_t)(clear)) | (set)) + +#define mchbar_read8(addr) MCHBAR8(addr) +#define mchbar_read16(addr) MCHBAR16(addr) +#define mchbar_read32(addr) MCHBAR32(addr) + +#define mchbar_write8(addr, value) (MCHBAR8(addr) = (value)) +#define mchbar_write16(addr, value) (MCHBAR16(addr) = (value)) +#define mchbar_write32(addr, value) (MCHBAR32(addr) = (value)) + +#define mchbar_clrsetbits8(addr, clear, set) _bar_clrsetbits_impl(mch, addr, clear, set, 8) +#define mchbar_clrsetbits16(addr, clear, set) _bar_clrsetbits_impl(mch, addr, clear, set, 16) +#define mchbar_clrsetbits32(addr, clear, set) _bar_clrsetbits_impl(mch, addr, clear, set, 32) + +#define mchbar_setbits8(addr, set) mchbar_clrsetbits8(addr, 0, set) +#define mchbar_setbits16(addr, set) mchbar_clrsetbits16(addr, 0, set) +#define mchbar_setbits32(addr, set) mchbar_clrsetbits32(addr, 0, set) + +#define mchbar_clrbits8(addr, clear) mchbar_clrsetbits8(addr, clear, 0) +#define mchbar_clrbits16(addr, clear) mchbar_clrsetbits16(addr, clear, 0) +#define mchbar_clrbits32(addr, clear) mchbar_clrsetbits32(addr, clear, 0) + +#define dmibar_read8(addr) DMIBAR8(addr) +#define dmibar_read16(addr) DMIBAR16(addr) +#define dmibar_read32(addr) DMIBAR32(addr) + +#define dmibar_write8(addr, value) (DMIBAR8(addr) = (value)) +#define dmibar_write16(addr, value) (DMIBAR16(addr) = (value)) +#define dmibar_write32(addr, value) (DMIBAR32(addr) = (value)) + +#define dmibar_clrsetbits8(addr, clear, set) _bar_clrsetbits_impl(dmi, addr, clear, set, 8) +#define dmibar_clrsetbits16(addr, clear, set) _bar_clrsetbits_impl(dmi, addr, clear, set, 16) +#define dmibar_clrsetbits32(addr, clear, set) _bar_clrsetbits_impl(dmi, addr, clear, set, 32) + +#define dmibar_setbits8(addr, set) dmibar_clrsetbits8(addr, 0, set) +#define dmibar_setbits16(addr, set) dmibar_clrsetbits16(addr, 0, set) +#define dmibar_setbits32(addr, set) dmibar_clrsetbits32(addr, 0, set) + +#define dmibar_clrbits8(addr, clear) dmibar_clrsetbits8(addr, clear, 0) +#define dmibar_clrbits16(addr, clear) dmibar_clrsetbits16(addr, clear, 0) +#define dmibar_clrbits32(addr, clear) dmibar_clrsetbits32(addr, clear, 0) + +#define epbar_read8(addr) EPBAR8(addr) +#define epbar_read16(addr) EPBAR16(addr) +#define epbar_read32(addr) EPBAR32(addr) + +#define epbar_write8(addr, value) (EPBAR8(addr) = (value)) +#define epbar_write16(addr, value) (EPBAR16(addr) = (value)) +#define epbar_write32(addr, value) (EPBAR32(addr) = (value)) + +#define epbar_clrsetbits8(addr, clear, set) _bar_clrsetbits_impl(ep, addr, clear, set, 8) +#define epbar_clrsetbits16(addr, clear, set) _bar_clrsetbits_impl(ep, addr, clear, set, 16) +#define epbar_clrsetbits32(addr, clear, set) _bar_clrsetbits_impl(ep, addr, clear, set, 32) + +#define epbar_setbits8(addr, set) epbar_clrsetbits8(addr, 0, set) +#define epbar_setbits16(addr, set) epbar_clrsetbits16(addr, 0, set) +#define epbar_setbits32(addr, set) epbar_clrsetbits32(addr, 0, set) + +#define epbar_clrbits8(addr, clear) epbar_clrsetbits8(addr, clear, 0) +#define epbar_clrbits16(addr, clear) epbar_clrsetbits16(addr, clear, 0) +#define epbar_clrbits32(addr, clear) epbar_clrsetbits32(addr, clear, 0) + #endif /* ! NORTHBRIDGE_INTEL_COMMON_FIXED_BARS_H */ |