diff options
author | David Gibson <david@gibson.dropbear.id.au> | 2005-07-13 01:11:42 -0700 |
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committer | Linus Torvalds <torvalds@g5.osdl.org> | 2005-07-13 11:25:25 -0700 |
commit | 96e2844999f99878fc5b03b81ccaa60580005b81 (patch) | |
tree | 353c1bc9a5602d556e6741f4a261010cde45e93b /arch/ppc64/kernel/pSeries_lpar.c | |
parent | f13487c66c75f5db004a0631047309d9e7c5aab7 (diff) | |
download | op-kernel-dev-96e2844999f99878fc5b03b81ccaa60580005b81.zip op-kernel-dev-96e2844999f99878fc5b03b81ccaa60580005b81.tar.gz |
[PATCH] ppc64: kill bitfields in ppc64 hash code
This patch removes the use of bitfield types from the ppc64 hash table
manipulation code.
Signed-off-by: David Gibson <dwg@au1.ibm.com>
Acked-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'arch/ppc64/kernel/pSeries_lpar.c')
-rw-r--r-- | arch/ppc64/kernel/pSeries_lpar.c | 47 |
1 files changed, 16 insertions, 31 deletions
diff --git a/arch/ppc64/kernel/pSeries_lpar.c b/arch/ppc64/kernel/pSeries_lpar.c index 6534812..74dd144 100644 --- a/arch/ppc64/kernel/pSeries_lpar.c +++ b/arch/ppc64/kernel/pSeries_lpar.c @@ -277,31 +277,20 @@ void vpa_init(int cpu) long pSeries_lpar_hpte_insert(unsigned long hpte_group, unsigned long va, unsigned long prpn, - int secondary, unsigned long hpteflags, - int bolted, int large) + unsigned long vflags, unsigned long rflags) { unsigned long arpn = physRpn_to_absRpn(prpn); unsigned long lpar_rc; unsigned long flags; unsigned long slot; - HPTE lhpte; + unsigned long hpte_v, hpte_r; unsigned long dummy0, dummy1; - /* Fill in the local HPTE with absolute rpn, avpn and flags */ - lhpte.dw1.dword1 = 0; - lhpte.dw1.dw1.rpn = arpn; - lhpte.dw1.flags.flags = hpteflags; + hpte_v = ((va >> 23) << HPTE_V_AVPN_SHIFT) | vflags | HPTE_V_VALID; + if (vflags & HPTE_V_LARGE) + hpte_v &= ~(1UL << HPTE_V_AVPN_SHIFT); - lhpte.dw0.dword0 = 0; - lhpte.dw0.dw0.avpn = va >> 23; - lhpte.dw0.dw0.h = secondary; - lhpte.dw0.dw0.bolted = bolted; - lhpte.dw0.dw0.v = 1; - - if (large) { - lhpte.dw0.dw0.l = 1; - lhpte.dw0.dw0.avpn &= ~0x1UL; - } + hpte_r = (arpn << HPTE_R_RPN_SHIFT) | rflags; /* Now fill in the actual HPTE */ /* Set CEC cookie to 0 */ @@ -312,11 +301,11 @@ long pSeries_lpar_hpte_insert(unsigned long hpte_group, flags = 0; /* XXX why is this here? - Anton */ - if (hpteflags & (_PAGE_GUARDED|_PAGE_NO_CACHE)) - lhpte.dw1.flags.flags &= ~_PAGE_COHERENT; + if (rflags & (_PAGE_GUARDED|_PAGE_NO_CACHE)) + hpte_r &= ~_PAGE_COHERENT; - lpar_rc = plpar_hcall(H_ENTER, flags, hpte_group, lhpte.dw0.dword0, - lhpte.dw1.dword1, &slot, &dummy0, &dummy1); + lpar_rc = plpar_hcall(H_ENTER, flags, hpte_group, hpte_v, + hpte_r, &slot, &dummy0, &dummy1); if (unlikely(lpar_rc == H_PTEG_Full)) return -1; @@ -332,7 +321,7 @@ long pSeries_lpar_hpte_insert(unsigned long hpte_group, /* Because of iSeries, we have to pass down the secondary * bucket bit here as well */ - return (slot & 7) | (secondary << 3); + return (slot & 7) | (!!(vflags & HPTE_V_SECONDARY) << 3); } static DEFINE_SPINLOCK(pSeries_lpar_tlbie_lock); @@ -427,22 +416,18 @@ static long pSeries_lpar_hpte_find(unsigned long vpn) unsigned long hash; unsigned long i, j; long slot; - union { - unsigned long dword0; - Hpte_dword0 dw0; - } hpte_dw0; - Hpte_dword0 dw0; + unsigned long hpte_v; hash = hpt_hash(vpn, 0); for (j = 0; j < 2; j++) { slot = (hash & htab_hash_mask) * HPTES_PER_GROUP; for (i = 0; i < HPTES_PER_GROUP; i++) { - hpte_dw0.dword0 = pSeries_lpar_hpte_getword0(slot); - dw0 = hpte_dw0.dw0; + hpte_v = pSeries_lpar_hpte_getword0(slot); - if ((dw0.avpn == (vpn >> 11)) && dw0.v && - (dw0.h == j)) { + if ((HPTE_V_AVPN_VAL(hpte_v) == (vpn >> 11)) + && (hpte_v & HPTE_V_VALID) + && (!!(hpte_v & HPTE_V_SECONDARY) == j)) { /* HPTE matches */ if (j) slot = -slot; |