diff options
| author | Borislav Petkov <borislav.petkov@amd.com> | 2010-12-13 19:21:07 +0100 |
|---|---|---|
| committer | Borislav Petkov <borislav.petkov@amd.com> | 2011-03-17 14:46:14 +0100 |
| commit | f678b8ccce69dcf9c597e3029ee35421ba62a215 (patch) | |
| tree | 49194173601c7d446864f0aae69c8c1f149fef96 /drivers/edac/amd64_edac.c | |
| parent | c8e518d5673d6b694ab843ee586438cdff0b3809 (diff) | |
amd64_edac: Replace huge bitmasks with a macro
Replace hard to read hex constants with a continuous masks macro.
Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
Diffstat (limited to 'drivers/edac/amd64_edac.c')
| -rw-r--r-- | drivers/edac/amd64_edac.c | 19 |
1 files changed, 9 insertions, 10 deletions
diff --git a/drivers/edac/amd64_edac.c b/drivers/edac/amd64_edac.c index 32e323198f7..aed7f7bbc5d 100644 --- a/drivers/edac/amd64_edac.c +++ b/drivers/edac/amd64_edac.c @@ -570,7 +570,7 @@ static u64 sys_addr_to_dram_addr(struct mem_ctl_info *mci, u64 sys_addr) * section 3.4.2 of AMD publication 24592: AMD x86-64 Architecture * Programmer's Manual Volume 1 Application Programming. */ - dram_addr = (sys_addr & 0xffffffffffull) - dram_base; + dram_addr = (sys_addr & GENMASK(0, 39)) - dram_base; debugf2("using DRAM Base register to translate SysAddr 0x%lx to " "DramAddr 0x%lx\n", (unsigned long)sys_addr, @@ -607,8 +607,8 @@ static u64 dram_addr_to_input_addr(struct mem_ctl_info *mci, u64 dram_addr) * concerning translating a DramAddr to an InputAddr. */ intlv_shift = num_node_interleave_bits(dram_intlv_en(pvt, 0)); - input_addr = ((dram_addr >> intlv_shift) & 0xffffff000ull) + - (dram_addr & 0xfff); + input_addr = ((dram_addr >> intlv_shift) & GENMASK(12, 35)) + + (dram_addr & 0xfff); debugf2(" Intlv Shift=%d DramAddr=0x%lx maps to InputAddr=0x%lx\n", intlv_shift, (unsigned long)dram_addr, @@ -667,8 +667,8 @@ static u64 input_addr_to_dram_addr(struct mem_ctl_info *mci, u64 input_addr) return input_addr; } - bits = ((input_addr & 0xffffff000ull) << intlv_shift) + - (input_addr & 0xfff); + bits = ((input_addr & GENMASK(12, 35)) << intlv_shift) + + (input_addr & 0xfff); intlv_sel = dram_intlv_sel(pvt, node_id) & ((1 << intlv_shift) - 1); dram_addr = bits + (intlv_sel << 12); @@ -1399,21 +1399,20 @@ static int f10_match_to_this_node(struct amd64_pvt *pvt, int range, chan_addr = f10_get_norm_dct_addr(pvt, range, sys_addr, high_range, dct_sel_base); - /* remove Node ID (in case of memory interleaving) */ + /* remove Node ID (in case of node interleaving) */ tmp = chan_addr & 0xFC0; - chan_addr = ((chan_addr >> hweight8(intlv_en)) & 0xFFFFFFFFF000ULL) | tmp; + chan_addr = ((chan_addr >> hweight8(intlv_en)) & GENMASK(12, 47)) | tmp; /* remove channel interleave and hash */ if (dct_interleave_enabled(pvt) && !dct_high_range_enabled(pvt) && !dct_ganging_enabled(pvt)) { if (dct_sel_interleave_addr(pvt) != 1) - chan_addr = (chan_addr >> 1) & 0xFFFFFFFFFFFFFFC0ULL; + chan_addr = (chan_addr >> 1) & GENMASK(6, 63); else { tmp = chan_addr & 0xFC0; - chan_addr = ((chan_addr & 0xFFFFFFFFFFFFC000ULL) >> 1) - | tmp; + chan_addr = ((chan_addr & GENMASK(14, 63)) >> 1) | tmp; } } |