The sizes.h provides a set of common size definitions, use it.
Reviewed-by: Qiuxu Zhuo <[email protected]>
Signed-off-by: Andy Shevchenko <[email protected]>
---
v2: added tag (Qiuxu)
drivers/edac/pnd2_edac.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/drivers/edac/pnd2_edac.c b/drivers/edac/pnd2_edac.c
index 2b306f2cc605..45e3c2913d51 100644
--- a/drivers/edac/pnd2_edac.c
+++ b/drivers/edac/pnd2_edac.c
@@ -24,6 +24,7 @@
#include <linux/delay.h>
#include <linux/edac.h>
#include <linux/mmzone.h>
+#include <linux/sizes.h>
#include <linux/smp.h>
#include <linux/bitmap.h>
#include <linux/math64.h>
@@ -109,7 +110,6 @@ 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
@@ -587,7 +587,7 @@ 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 */
@@ -643,7 +643,7 @@ static int sys2pmi(const u64 addr, u32 *pmiidx, u64 *pmiaddr, char *msg)
/* 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) {
+ (addr >= top_lm && addr < SZ_4G) || addr >= top_hm) {
snprintf(msg, PND2_MSG_SIZE, "Error address 0x%llx is not DRAM", addr);
return -EINVAL;
}
--
2.43.0.rc1.1.gbec44491f096
Apply bit macros (BIT()/BIT_ULL()/GENMASK()/etc) and helpers
(for_each_set_bit()/etc) where it makes sense.
Signed-off-by: Andy Shevchenko <[email protected]>
---
v2: fixed uninitialized variable (lkp, Qiuxu), dropped mask check change (Qiuxu)
drivers/edac/pnd2_edac.c | 32 ++++++++++++++------------------
1 file changed, 14 insertions(+), 18 deletions(-)
diff --git a/drivers/edac/pnd2_edac.c b/drivers/edac/pnd2_edac.c
index 45e3c2913d51..ee7c9b024354 100644
--- a/drivers/edac/pnd2_edac.c
+++ b/drivers/edac/pnd2_edac.c
@@ -183,7 +183,7 @@ 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 +307,7 @@ 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;
@@ -598,7 +598,7 @@ 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);
}
@@ -642,7 +642,7 @@ 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) ||
+ 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 +727,10 @@ 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 +1064,9 @@ 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 +1205,7 @@ 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 +1225,7 @@ 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 +1291,7 @@ 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;
--
2.43.0.rc1.1.gbec44491f096
> From: Andy Shevchenko <[email protected]>
> ...
> Subject: [PATCH v2 2/4] EDAC, pnd2: Apply bit macros and helpers where it
> makes sense
>
> Apply bit macros (BIT()/BIT_ULL()/GENMASK()/etc) and helpers
> (for_each_set_bit()/etc) where it makes sense.
>
> Signed-off-by: Andy Shevchenko <[email protected]>
> ---
> v2: fixed uninitialized variable (lkp, Qiuxu), dropped mask check change
> (Qiuxu)
>
> drivers/edac/pnd2_edac.c | 32 ++++++++++++++------------------
> 1 file changed, 14 insertions(+), 18 deletions(-)
> ...
This patch LGTM. Thanks!
Reviewed-by: Qiuxu Zhuo <[email protected]>
> The sizes.h provides a set of common size definitions, use it.
>
> Reviewed-by: Qiuxu Zhuo <[email protected]>
> Signed-off-by: Andy Shevchenko <[email protected]>
Applied this, and the other three patches in the series.
Thanks
-Tony