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From: Nicholas Piggin <npiggin@gmail.com>
To: qemu-ppc@nongnu.org
Cc: "Nicholas Piggin" <npiggin@gmail.com>,
	"Cédric Le Goater" <clg@kaod.org>,
	"Frédéric Barrat" <fbarrat@linux.ibm.com>,
	"Daniel Henrique Barboza" <danielhb413@gmail.com>,
	"David Gibson" <david@gibson.dropbear.id.au>,
	"Harsh Prateek Bora" <harshpb@linux.ibm.com>,
	qemu-devel@nongnu.org
Subject: [PATCH 1/8] target/ppc: POWER10 does not have transactional memory
Date: Fri, 19 Jan 2024 00:09:35 +1000	[thread overview]
Message-ID: <20240118140942.164319-2-npiggin@gmail.com> (raw)
In-Reply-To: <20240118140942.164319-1-npiggin@gmail.com>

POWER10 hardware implements a degenerate transactional memory facility
in POWER8/9 PCR compatibility modes to permit migration from older
CPUs, but POWER10 / ISA v3.1 mode does not support it so the CPU model
should not support it.

Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
---
 target/ppc/cpu_init.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/target/ppc/cpu_init.c b/target/ppc/cpu_init.c
index 9df606d523..5c1d0adca8 100644
--- a/target/ppc/cpu_init.c
+++ b/target/ppc/cpu_init.c
@@ -6576,7 +6576,7 @@ POWERPC_FAMILY(POWER10)(ObjectClass *oc, void *data)
                         PPC2_FP_TST_ISA206 | PPC2_BCTAR_ISA207 |
                         PPC2_LSQ_ISA207 | PPC2_ALTIVEC_207 |
                         PPC2_ISA205 | PPC2_ISA207S | PPC2_FP_CVT_S64 |
-                        PPC2_TM | PPC2_ISA300 | PPC2_PRCNTL | PPC2_ISA310 |
+                        PPC2_ISA300 | PPC2_PRCNTL | PPC2_ISA310 |
                         PPC2_MEM_LWSYNC | PPC2_BCDA_ISA206;
     pcc->msr_mask = (1ull << MSR_SF) |
                     (1ull << MSR_HV) |
@@ -6620,7 +6620,7 @@ POWERPC_FAMILY(POWER10)(ObjectClass *oc, void *data)
     pcc->flags = POWERPC_FLAG_VRE | POWERPC_FLAG_SE |
                  POWERPC_FLAG_BE | POWERPC_FLAG_PMM |
                  POWERPC_FLAG_BUS_CLK | POWERPC_FLAG_CFAR |
-                 POWERPC_FLAG_VSX | POWERPC_FLAG_TM | POWERPC_FLAG_SCV;
+                 POWERPC_FLAG_VSX | POWERPC_FLAG_SCV;
     pcc->l1_dcache_size = 0x8000;
     pcc->l1_icache_size = 0x8000;
 }
-- 
2.42.0



  reply	other threads:[~2024-01-18 14:13 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-01-18 14:09 [PATCH 0/8] ppc: Update targets for Power machines (spapr and pnv) Nicholas Piggin
2024-01-18 14:09 ` Nicholas Piggin [this message]
2024-01-18 14:09 ` [PATCH 2/8] ppc/spapr|pnv: Remove SAO from pa-features when running MTTCG Nicholas Piggin
2024-01-19  0:23   ` David Gibson
2024-01-23  1:57     ` Nicholas Piggin
2024-01-25  3:11       ` David Gibson
2024-01-25  7:08         ` Nicholas Piggin
2024-01-18 14:09 ` [PATCH 3/8] ppc/spapr: Remove copy-paste from pa-features under TCG Nicholas Piggin
2024-01-18 14:09 ` [PATCH 4/8] ppc/spapr: Adjust ibm,pa-features for POWER9 Nicholas Piggin
2024-01-18 14:09 ` [PATCH 5/8] ppc/spapr: Add pa-features for POWER10 machines Nicholas Piggin
2024-01-18 14:09 ` [PATCH 6/8] ppc/pnv: Permit ibm,pa-features set per machine variant Nicholas Piggin
2024-01-18 14:09 ` [PATCH 7/8] ppc/pnv: Set POWER9, POWER10 ibm,pa-features bits Nicholas Piggin
2024-01-18 14:09 ` [PATCH 8/8] ppc/pnv: Update skiboot to v7.1 Nicholas Piggin
2024-01-19  8:59   ` Cédric Le Goater

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