diff options
Diffstat (limited to 'drivers/edac/pnd2_edac.c')
| -rw-r--r-- | drivers/edac/pnd2_edac.c | 55 |
1 files changed, 26 insertions, 29 deletions
diff --git a/drivers/edac/pnd2_edac.c b/drivers/edac/pnd2_edac.c index 2b306f2cc605..2afcd148fcf8 100644 --- a/drivers/edac/pnd2_edac.c +++ b/drivers/edac/pnd2_edac.c @@ -16,18 +16,20 @@ * rank, bank, row and column using the appropriate "dunit_ops" functions/parameters. */ -#include <linux/module.h> +#include <linux/bitmap.h> +#include <linux/delay.h> +#include <linux/edac.h> #include <linux/init.h> +#include <linux/math64.h> +#include <linux/mmzone.h> +#include <linux/mod_devicetable.h> +#include <linux/module.h> #include <linux/pci.h> #include <linux/pci_ids.h> +#include <linux/sizes.h> #include <linux/slab.h> -#include <linux/delay.h> -#include <linux/edac.h> -#include <linux/mmzone.h> #include <linux/smp.h> -#include <linux/bitmap.h> -#include <linux/math64.h> -#include <linux/mod_devicetable.h> + #include <linux/platform_data/x86/p2sb.h> #include <asm/cpu_device_id.h> @@ -109,7 +111,6 @@ static struct mem_ctl_info *pnd2_mci; #define MOT_CHAN_INTLV_BIT_1SLC_2CH 12 #define MOT_CHAN_INTLV_BIT_2SLC_2CH 13 #define SELECTOR_DISABLED (-1) -#define _4GB (1ul << 32) #define PMI_ADDRESS_WIDTH 31 #define PND_MAX_PHYS_BIT 39 @@ -183,7 +184,7 @@ static int _apl_rd_reg(int port, int off, int op, u32 *data) } P2SB_READ(dword, P2SB_DATA_OFF, data); - ret = (status >> 1) & 0x3; + ret = (status >> 1) & GENMASK(1, 0); out: /* Hide the P2SB device, if it was hidden before */ if (hidden) @@ -307,7 +308,7 @@ static bool two_channels; /* Both PMI channels in one slice enabled */ static u8 sym_chan_mask; static u8 asym_chan_mask; -static u8 chan_mask; +static unsigned long chan_mask; static int slice_selector = -1; static int chan_selector = -1; @@ -329,7 +330,7 @@ static void mk_region_mask(char *name, struct region *rp, u64 base, u64 mask) return; } if (mask != GENMASK_ULL(PND_MAX_PHYS_BIT, __ffs(mask))) { - pr_info(FW_BUG "MOT mask not power of two\n"); + pr_info(FW_BUG "MOT mask is invalid\n"); return; } if (base & ~mask) { @@ -587,7 +588,7 @@ static int get_registers(void) /* Get a contiguous memory address (remove the MMIO gap) */ static u64 remove_mmio_gap(u64 sys) { - return (sys < _4GB) ? sys : sys - (_4GB - top_lm); + return (sys < SZ_4G) ? sys : sys - (SZ_4G - top_lm); } /* Squeeze out one address bit, shift upper part down to fill gap */ @@ -598,7 +599,7 @@ static void remove_addr_bit(u64 *addr, int bitidx) if (bitidx == -1) return; - mask = (1ull << bitidx) - 1; + mask = BIT_ULL(bitidx) - 1; *addr = ((*addr >> 1) & ~mask) | (*addr & mask); } @@ -642,8 +643,8 @@ static int sys2pmi(const u64 addr, u32 *pmiidx, u64 *pmiaddr, char *msg) int sym_chan_shift = sym_channels >> 1; /* Give up if address is out of range, or in MMIO gap */ - if (addr >= (1ul << PND_MAX_PHYS_BIT) || - (addr >= top_lm && addr < _4GB) || addr >= top_hm) { + if (addr >= BIT(PND_MAX_PHYS_BIT) || + (addr >= top_lm && addr < SZ_4G) || addr >= top_hm) { snprintf(msg, PND2_MSG_SIZE, "Error address 0x%llx is not DRAM", addr); return -EINVAL; } @@ -727,10 +728,10 @@ static int sys2pmi(const u64 addr, u32 *pmiidx, u64 *pmiaddr, char *msg) } /* Translate PMI address to memory (rank, row, bank, column) */ -#define C(n) (0x10 | (n)) /* column */ -#define B(n) (0x20 | (n)) /* bank */ -#define R(n) (0x40 | (n)) /* row */ -#define RS (0x80) /* rank */ +#define C(n) (BIT(4) | (n)) /* column */ +#define B(n) (BIT(5) | (n)) /* bank */ +#define R(n) (BIT(6) | (n)) /* row */ +#define RS (BIT(7)) /* rank */ /* addrdec values */ #define AMAP_1KB 0 @@ -1064,9 +1065,9 @@ static int apl_check_ecc_active(void) int i, ret = 0; /* Check dramtype and ECC mode for each present DIMM */ - for (i = 0; i < APL_NUM_CHANNELS; i++) - if (chan_mask & BIT(i)) - ret += check_channel(i); + for_each_set_bit(i, &chan_mask, APL_NUM_CHANNELS) + ret += check_channel(i); + return ret ? -EINVAL : 0; } @@ -1205,10 +1206,7 @@ static void apl_get_dimm_config(struct mem_ctl_info *mci) u64 capacity; int i, g; - for (i = 0; i < APL_NUM_CHANNELS; i++) { - if (!(chan_mask & BIT(i))) - continue; - + for_each_set_bit(i, &chan_mask, APL_NUM_CHANNELS) { dimm = edac_get_dimm(mci, i, 0, 0); if (!dimm) { edac_dbg(0, "No allocated DIMM for channel %d\n", i); @@ -1228,8 +1226,7 @@ static void apl_get_dimm_config(struct mem_ctl_info *mci) } pvt->dimm_geom[i] = g; - capacity = (d->rken0 + d->rken1) * 8 * (1ul << dimms[g].rowbits) * - (1ul << dimms[g].colbits); + capacity = (d->rken0 + d->rken1) * 8 * BIT(dimms[g].rowbits + dimms[g].colbits); edac_dbg(0, "Channel %d: %lld MByte DIMM\n", i, capacity >> (20 - 3)); dimm->nr_pages = MiB_TO_PAGES(capacity >> (20 - 3)); dimm->grain = 32; @@ -1295,7 +1292,7 @@ static void dnv_get_dimm_config(struct mem_ctl_info *mci) continue; } - capacity = ranks_of_dimm[j] * banks * (1ul << rowbits) * (1ul << colbits); + capacity = ranks_of_dimm[j] * banks * BIT(rowbits + colbits); edac_dbg(0, "Channel %d DIMM %d: %lld MByte DIMM\n", i, j, capacity >> (20 - 3)); dimm->nr_pages = MiB_TO_PAGES(capacity >> (20 - 3)); dimm->grain = 32; |