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authorChen, Gong <gong.chen@linux.intel.com>2013-10-18 23:29:07 +0200
committerTony Luck <tony.luck@intel.com>2013-10-22 00:12:01 +0200
commit10ef6b0dffe404bcc54e94cb2ca1a5b18445a66b (patch)
tree6450859ffdc4494f2211442dd411b7f189cf326d /drivers/edac
parentACPI, CPER: Update cper info (diff)
downloadlinux-10ef6b0dffe404bcc54e94cb2ca1a5b18445a66b.tar.xz
linux-10ef6b0dffe404bcc54e94cb2ca1a5b18445a66b.zip
bitops: Introduce a more generic BITMASK macro
GENMASK is used to create a contiguous bitmask([hi:lo]). It is implemented twice in current kernel. One is in EDAC driver, the other is in SiS/XGI FB driver. Move it to a more generic place for other usage. Signed-off-by: Chen, Gong <gong.chen@linux.intel.com> Cc: Borislav Petkov <bp@alien8.de> Cc: Thomas Winischhofer <thomas@winischhofer.net> Cc: Jean-Christophe Plagniol-Villard <plagnioj@jcrosoft.com> Cc: Tomi Valkeinen <tomi.valkeinen@ti.com> Acked-by: Borislav Petkov <bp@suse.de> Acked-by: Mauro Carvalho Chehab <m.chehab@samsung.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
Diffstat (limited to 'drivers/edac')
-rw-r--r--drivers/edac/amd64_edac.c46
-rw-r--r--drivers/edac/amd64_edac.h8
-rw-r--r--drivers/edac/sb_edac.c2
3 files changed, 25 insertions, 31 deletions
diff --git a/drivers/edac/amd64_edac.c b/drivers/edac/amd64_edac.c
index 3c9e4e98c651..b53d0de17e15 100644
--- a/drivers/edac/amd64_edac.c
+++ b/drivers/edac/amd64_edac.c
@@ -339,8 +339,8 @@ static void get_cs_base_and_mask(struct amd64_pvt *pvt, int csrow, u8 dct,
if (pvt->fam == 0xf && pvt->ext_model < K8_REV_F) {
csbase = pvt->csels[dct].csbases[csrow];
csmask = pvt->csels[dct].csmasks[csrow];
- base_bits = GENMASK(21, 31) | GENMASK(9, 15);
- mask_bits = GENMASK(21, 29) | GENMASK(9, 15);
+ base_bits = GENMASK_ULL(31, 21) | GENMASK_ULL(15, 9);
+ mask_bits = GENMASK_ULL(29, 21) | GENMASK_ULL(15, 9);
addr_shift = 4;
/*
@@ -352,16 +352,16 @@ static void get_cs_base_and_mask(struct amd64_pvt *pvt, int csrow, u8 dct,
csbase = pvt->csels[dct].csbases[csrow];
csmask = pvt->csels[dct].csmasks[csrow >> 1];
- *base = (csbase & GENMASK(5, 15)) << 6;
- *base |= (csbase & GENMASK(19, 30)) << 8;
+ *base = (csbase & GENMASK_ULL(15, 5)) << 6;
+ *base |= (csbase & GENMASK_ULL(30, 19)) << 8;
*mask = ~0ULL;
/* poke holes for the csmask */
- *mask &= ~((GENMASK(5, 15) << 6) |
- (GENMASK(19, 30) << 8));
+ *mask &= ~((GENMASK_ULL(15, 5) << 6) |
+ (GENMASK_ULL(30, 19) << 8));
- *mask |= (csmask & GENMASK(5, 15)) << 6;
- *mask |= (csmask & GENMASK(19, 30)) << 8;
+ *mask |= (csmask & GENMASK_ULL(15, 5)) << 6;
+ *mask |= (csmask & GENMASK_ULL(30, 19)) << 8;
return;
} else {
@@ -370,9 +370,11 @@ static void get_cs_base_and_mask(struct amd64_pvt *pvt, int csrow, u8 dct,
addr_shift = 8;
if (pvt->fam == 0x15)
- base_bits = mask_bits = GENMASK(19,30) | GENMASK(5,13);
+ base_bits = mask_bits =
+ GENMASK_ULL(30,19) | GENMASK_ULL(13,5);
else
- base_bits = mask_bits = GENMASK(19,28) | GENMASK(5,13);
+ base_bits = mask_bits =
+ GENMASK_ULL(28,19) | GENMASK_ULL(13,5);
}
*base = (csbase & base_bits) << addr_shift;
@@ -561,7 +563,7 @@ 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 & GENMASK(0, 39)) - dram_base;
+ dram_addr = (sys_addr & GENMASK_ULL(39, 0)) - dram_base;
edac_dbg(2, "using DRAM Base register to translate SysAddr 0x%lx to DramAddr 0x%lx\n",
(unsigned long)sys_addr, (unsigned long)dram_addr);
@@ -597,7 +599,7 @@ 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) & GENMASK(12, 35)) +
+ input_addr = ((dram_addr >> intlv_shift) & GENMASK_ULL(35, 12)) +
(dram_addr & 0xfff);
edac_dbg(2, " Intlv Shift=%d DramAddr=0x%lx maps to InputAddr=0x%lx\n",
@@ -849,7 +851,7 @@ static u64 get_error_address(struct amd64_pvt *pvt, struct mce *m)
end_bit = 39;
}
- addr = m->addr & GENMASK(start_bit, end_bit);
+ addr = m->addr & GENMASK_ULL(end_bit, start_bit);
/*
* Erratum 637 workaround
@@ -861,7 +863,7 @@ static u64 get_error_address(struct amd64_pvt *pvt, struct mce *m)
u16 mce_nid;
u8 intlv_en;
- if ((addr & GENMASK(24, 47)) >> 24 != 0x00fdf7)
+ if ((addr & GENMASK_ULL(47, 24)) >> 24 != 0x00fdf7)
return addr;
mce_nid = amd_get_nb_id(m->extcpu);
@@ -871,7 +873,7 @@ static u64 get_error_address(struct amd64_pvt *pvt, struct mce *m)
intlv_en = tmp >> 21 & 0x7;
/* add [47:27] + 3 trailing bits */
- cc6_base = (tmp & GENMASK(0, 20)) << 3;
+ cc6_base = (tmp & GENMASK_ULL(20, 0)) << 3;
/* reverse and add DramIntlvEn */
cc6_base |= intlv_en ^ 0x7;
@@ -880,18 +882,18 @@ static u64 get_error_address(struct amd64_pvt *pvt, struct mce *m)
cc6_base <<= 24;
if (!intlv_en)
- return cc6_base | (addr & GENMASK(0, 23));
+ return cc6_base | (addr & GENMASK_ULL(23, 0));
amd64_read_pci_cfg(pvt->F1, DRAM_LOCAL_NODE_BASE, &tmp);
/* faster log2 */
- tmp_addr = (addr & GENMASK(12, 23)) << __fls(intlv_en + 1);
+ tmp_addr = (addr & GENMASK_ULL(23, 12)) << __fls(intlv_en + 1);
/* OR DramIntlvSel into bits [14:12] */
- tmp_addr |= (tmp & GENMASK(21, 23)) >> 9;
+ tmp_addr |= (tmp & GENMASK_ULL(23, 21)) >> 9;
/* add remaining [11:0] bits from original MC4_ADDR */
- tmp_addr |= addr & GENMASK(0, 11);
+ tmp_addr |= addr & GENMASK_ULL(11, 0);
return cc6_base | tmp_addr;
}
@@ -952,12 +954,12 @@ static void read_dram_base_limit_regs(struct amd64_pvt *pvt, unsigned range)
amd64_read_pci_cfg(f1, DRAM_LOCAL_NODE_LIM, &llim);
- pvt->ranges[range].lim.lo &= GENMASK(0, 15);
+ pvt->ranges[range].lim.lo &= GENMASK_ULL(15, 0);
/* {[39:27],111b} */
pvt->ranges[range].lim.lo |= ((llim & 0x1fff) << 3 | 0x7) << 16;
- pvt->ranges[range].lim.hi &= GENMASK(0, 7);
+ pvt->ranges[range].lim.hi &= GENMASK_ULL(7, 0);
/* [47:40] */
pvt->ranges[range].lim.hi |= llim >> 13;
@@ -1330,7 +1332,7 @@ static u64 f1x_get_norm_dct_addr(struct amd64_pvt *pvt, u8 range,
chan_off = dram_base;
}
- return (sys_addr & GENMASK(6,47)) - (chan_off & GENMASK(23,47));
+ return (sys_addr & GENMASK_ULL(47,6)) - (chan_off & GENMASK_ULL(47,23));
}
/*
diff --git a/drivers/edac/amd64_edac.h b/drivers/edac/amd64_edac.h
index d2443cfa0698..6dc1fcc25afb 100644
--- a/drivers/edac/amd64_edac.h
+++ b/drivers/edac/amd64_edac.h
@@ -160,14 +160,6 @@
#define OFF false
/*
- * Create a contiguous bitmask starting at bit position @lo and ending at
- * position @hi. For example
- *
- * GENMASK(21, 39) gives us the 64bit vector 0x000000ffffe00000.
- */
-#define GENMASK(lo, hi) (((1ULL << ((hi) - (lo) + 1)) - 1) << (lo))
-
-/*
* PCI-defined configuration space registers
*/
#define PCI_DEVICE_ID_AMD_15H_M30H_NB_F1 0x141b
diff --git a/drivers/edac/sb_edac.c b/drivers/edac/sb_edac.c
index e04462b60756..88f60c5fecbc 100644
--- a/drivers/edac/sb_edac.c
+++ b/drivers/edac/sb_edac.c
@@ -50,7 +50,7 @@ static int probed;
* Get a bit field at register value <v>, from bit <lo> to bit <hi>
*/
#define GET_BITFIELD(v, lo, hi) \
- (((v) & ((1ULL << ((hi) - (lo) + 1)) - 1) << (lo)) >> (lo))
+ (((v) & GENMASK_ULL(hi, lo)) >> (lo))
/*
* sbridge Memory Controller Registers