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Tue, 30 Jun 2020 05:53:21 +0000 (GMT) Received: from d06av26.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 14726AE045; Tue, 30 Jun 2020 05:53:18 +0000 (GMT) Received: from localhost.localdomain.com (unknown [9.199.47.9]) by d06av26.portsmouth.uk.ibm.com (Postfix) with ESMTP; Tue, 30 Jun 2020 05:53:17 +0000 (GMT) From: Balamuruhan S To: mpe@ellerman.id.au Subject: [PATCH 1/4] powerpc/sstep: support new VSX vector paired storage access instructions Date: Tue, 30 Jun 2020 11:23:04 +0530 Message-Id: <20200630055307.1154135-2-bala24@linux.ibm.com> X-Mailer: git-send-email 2.24.1 In-Reply-To: <20200630055307.1154135-1-bala24@linux.ibm.com> References: <20200630055307.1154135-1-bala24@linux.ibm.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-TM-AS-GCONF: 00 X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.235, 18.0.687 definitions=2020-06-29_21:2020-06-29, 2020-06-29 signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 phishscore=0 mlxscore=0 suspectscore=1 adultscore=0 mlxlogscore=999 lowpriorityscore=0 clxscore=1015 bulkscore=0 malwarescore=0 cotscore=-2147483648 impostorscore=0 spamscore=0 priorityscore=1501 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2004280000 definitions=main-2006300037 X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: ravi.bangoria@linux.ibm.com, Balamuruhan S , paulus@samba.org, sandipan@linux.ibm.com, naveen.n.rao@linux.vnet.ibm.com, linuxppc-dev@lists.ozlabs.org Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" VSX Vector Paired instructions loads/stores an octword (32 bytes) from/to storage into two sequential VSRs. Add `analyse_instr()` support to these new instructions, * Load VSX Vector Paired (lxvp) * Load VSX Vector Paired Indexed (lxvpx) * Prefixed Load VSX Vector Paired (plxvp) * Store VSX Vector Paired (stxvp) * Store VSX Vector Paired Indexed (stxvpx) * Prefixed Store VSX Vector Paired (pstxvp) Signed-off-by: Balamuruhan S --- arch/powerpc/lib/sstep.c | 44 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 44 insertions(+) diff --git a/arch/powerpc/lib/sstep.c b/arch/powerpc/lib/sstep.c index 5abe98216dc2..c92890e71ca7 100644 --- a/arch/powerpc/lib/sstep.c +++ b/arch/powerpc/lib/sstep.c @@ -31,6 +31,10 @@ extern char system_call_common[]; #define XER_OV32 0x00080000U #define XER_CA32 0x00040000U +#ifdef CONFIG_VSX +#define VSX_REGISTER_XTP(rd) ((((rd) & 1) << 5) | ((rd) & 0xfe)) +#endif + #ifdef CONFIG_PPC_FPU /* * Functions in ldstfp.S @@ -2382,6 +2386,13 @@ int analyse_instr(struct instruction_op *op, const struct pt_regs *regs, op->vsx_flags = VSX_SPLAT; break; + case 333: /* lxvpx */ + op->reg = VSX_REGISTER_XTP(rd); + op->type = MKOP(LOAD_VSX, 0, 32); + op->element_size = 32; + op->vsx_flags = VSX_CHECK_VEC; + break; + case 364: /* lxvwsx */ op->reg = rd | ((word & 1) << 5); op->type = MKOP(LOAD_VSX, 0, 4); @@ -2410,6 +2421,12 @@ int analyse_instr(struct instruction_op *op, const struct pt_regs *regs, VSX_CHECK_VEC; break; } + case 461: /* stxvpx */ + op->reg = VSX_REGISTER_XTP(rd); + op->type = MKOP(STORE_VSX, 0, 32); + op->element_size = 32; + op->vsx_flags = VSX_CHECK_VEC; + break; case 524: /* lxsspx */ op->reg = rd | ((word & 1) << 5); op->type = MKOP(LOAD_VSX, 0, 4); @@ -2651,6 +2668,21 @@ int analyse_instr(struct instruction_op *op, const struct pt_regs *regs, #endif #ifdef CONFIG_VSX + case 6: + op->ea = dqform_ea(word, regs); + op->reg = VSX_REGISTER_XTP(rd); + op->element_size = 32; + op->vsx_flags = VSX_CHECK_VEC; + switch (word & 0xf) { + case 0: /* lxvp */ + op->type = MKOP(LOAD_VSX, 0, 32); + break; + case 1: /* stxvp */ + op->type = MKOP(STORE_VSX, 0, 32); + break; + } + break; + case 61: /* stfdp, lxv, stxsd, stxssp, stxv */ switch (word & 7) { case 0: /* stfdp with LSB of DS field = 0 */ @@ -2779,12 +2811,24 @@ int analyse_instr(struct instruction_op *op, const struct pt_regs *regs, case 57: /* pld */ op->type = MKOP(LOAD, PREFIXED, 8); break; + case 58: /* plxvp */ + op->reg = VSX_REGISTER_XTP(rd); + op->type = MKOP(LOAD_VSX, PREFIXED, 32); + op->element_size = 32; + op->vsx_flags = VSX_CHECK_VEC; + break; case 60: /* stq */ op->type = MKOP(STORE, PREFIXED, 16); break; case 61: /* pstd */ op->type = MKOP(STORE, PREFIXED, 8); break; + case 62: /* pstxvp */ + op->reg = VSX_REGISTER_XTP(rd); + op->type = MKOP(STORE_VSX, PREFIXED, 32); + op->element_size = 32; + op->vsx_flags = VSX_CHECK_VEC; + break; } break; case 1: /* Type 01 Eight-Byte Register-to-Register */ base-commit: 64677779e8962c20b580b471790fe42367750599 -- 2.24.1