diff options
Diffstat (limited to 'drivers/misc/cxl/fault.c')
-rw-r--r-- | drivers/misc/cxl/fault.c | 30 |
1 files changed, 8 insertions, 22 deletions
diff --git a/drivers/misc/cxl/fault.c b/drivers/misc/cxl/fault.c index 69506ebd4d07..d0e97fd3d4c5 100644 --- a/drivers/misc/cxl/fault.c +++ b/drivers/misc/cxl/fault.c @@ -22,29 +22,19 @@ #include "cxl.h" static struct cxl_sste* find_free_sste(struct cxl_sste *primary_group, - bool sec_hash, - struct cxl_sste *secondary_group, unsigned int *lru) { - unsigned int i, entry; + unsigned int entry; struct cxl_sste *sste, *group = primary_group; - for (i = 0; i < 2; i++) { - for (entry = 0; entry < 8; entry++) { - sste = group + entry; - if (!(be64_to_cpu(sste->esid_data) & SLB_ESID_V)) - return sste; - } - if (!sec_hash) - break; - group = secondary_group; + for (entry = 0; entry < 8; entry++) { + sste = group + entry; + if (!(be64_to_cpu(sste->esid_data) & SLB_ESID_V)) + return sste; } /* Nothing free, select an entry to cast out */ - if (sec_hash && (*lru & 0x8)) - sste = secondary_group + (*lru & 0x7); - else - sste = primary_group + (*lru & 0x7); - *lru = (*lru + 1) & 0xf; + sste = primary_group + *lru; + *lru = (*lru + 1) & 0x7; return sste; } @@ -53,22 +43,18 @@ static void cxl_load_segment(struct cxl_context *ctx, struct copro_slb *slb) { /* mask is the group index, we search primary and secondary here. */ unsigned int mask = (ctx->sst_size >> 7)-1; /* SSTP0[SegTableSize] */ - bool sec_hash = 1; struct cxl_sste *sste; unsigned int hash; unsigned long flags; - sec_hash = !!(cxl_p1n_read(ctx->afu, CXL_PSL_SR_An) & CXL_PSL_SR_An_SC); - if (slb->vsid & SLB_VSID_B_1T) hash = (slb->esid >> SID_SHIFT_1T) & mask; else /* 256M */ hash = (slb->esid >> SID_SHIFT) & mask; spin_lock_irqsave(&ctx->sste_lock, flags); - sste = find_free_sste(ctx->sstp + (hash << 3), sec_hash, - ctx->sstp + ((~hash & mask) << 3), &ctx->sst_lru); + sste = find_free_sste(ctx->sstp + (hash << 3), &ctx->sst_lru); pr_devel("CXL Populating SST[%li]: %#llx %#llx\n", sste - ctx->sstp, slb->vsid, slb->esid); |