From: David Gibson <david@gibson.dropbear.id.au>
To: peter.maydell@linaro.org
Cc: lvivier@redhat.com, aik@ozlabs.ru,
Richard Henderson <richard.henderson@linaro.org>,
Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>,
qemu-devel@nongnu.org, groug@kaod.org, qemu-ppc@nongnu.org,
clg@kaod.org, David Gibson <david@gibson.dropbear.id.au>
Subject: [PULL 24/53] target/ppc: update {get, set}_dfp{64, 128}() helper functions to read/write DFP numbers correctly
Date: Fri, 4 Oct 2019 19:37:18 +1000 [thread overview]
Message-ID: <20191004093747.31350-25-david@gibson.dropbear.id.au> (raw)
In-Reply-To: <20191004093747.31350-1-david@gibson.dropbear.id.au>
From: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Since commit ef96e3ae96 "target/ppc: move FP and VMX registers into aligned vsr
register array" FP registers are no longer stored consecutively in memory and so
the current method of combining FP register pairs into DFP numbers is incorrect.
Firstly update the definition of the dh_*_fprp defines in helper.h to reflect
that FP registers are now stored as part of an array of ppc_vsr_t elements
rather than plain uint64_t elements, and then introduce a new ppc_fprp_t type
which conceptually represents a DFP even-odd register pair to be consumed by the
DFP helper functions.
Finally update the new DFP {get,set}_dfp{64,128}() helper functions to convert
between DFP numbers and DFP even-odd register pairs correctly, making use of the
existing VsrD() macro to access the correct elements regardless of host endian.
Fixes: ef96e3ae96 "target/ppc: move FP and VMX registers into aligned vsr register array"
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20190926185801.11176-4-mark.cave-ayland@ilande.co.uk>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
---
target/ppc/cpu.h | 1 +
target/ppc/dfp_helper.c | 80 +++++++++++++++++++++--------------------
target/ppc/helper.h | 2 +-
3 files changed, 44 insertions(+), 39 deletions(-)
diff --git a/target/ppc/cpu.h b/target/ppc/cpu.h
index a23c6455b9..e3e82327b7 100644
--- a/target/ppc/cpu.h
+++ b/target/ppc/cpu.h
@@ -235,6 +235,7 @@ typedef union _ppc_vsr_t {
} ppc_vsr_t;
typedef ppc_vsr_t ppc_avr_t;
+typedef ppc_vsr_t ppc_fprp_t;
#if !defined(CONFIG_USER_ONLY)
/* Software TLB cache */
diff --git a/target/ppc/dfp_helper.c b/target/ppc/dfp_helper.c
index 3923a072b2..ab5e91d8ed 100644
--- a/target/ppc/dfp_helper.c
+++ b/target/ppc/dfp_helper.c
@@ -36,26 +36,26 @@
#define LO_IDX 0
#endif
-static void get_dfp64(uint64_t *dst, uint64_t *dfp)
+static void get_dfp64(uint64_t *dst, ppc_fprp_t *dfp)
{
- dst[0] = dfp[0];
+ dst[0] = dfp->VsrD(0);
}
-static void get_dfp128(uint64_t *dst, uint64_t *dfp)
+static void get_dfp128(uint64_t *dst, ppc_fprp_t *dfp)
{
- dst[0] = dfp[HI_IDX];
- dst[1] = dfp[LO_IDX];
+ dst[HI_IDX] = dfp[0].VsrD(0);
+ dst[LO_IDX] = dfp[1].VsrD(0);
}
-static void set_dfp64(uint64_t *dfp, uint64_t *src)
+static void set_dfp64(ppc_fprp_t *dfp, uint64_t *src)
{
- dfp[0] = src[0];
+ dfp->VsrD(0) = src[0];
}
-static void set_dfp128(uint64_t *dfp, uint64_t *src)
+static void set_dfp128(ppc_fprp_t *dfp, uint64_t *src)
{
- dfp[0] = src[HI_IDX];
- dfp[1] = src[LO_IDX];
+ dfp[0].VsrD(0) = src[HI_IDX];
+ dfp[1].VsrD(0) = src[LO_IDX];
}
struct PPC_DFP {
@@ -143,8 +143,8 @@ static void dfp_set_round_mode_from_immediate(uint8_t r, uint8_t rmc,
decContextSetRounding(&dfp->context, rnd);
}
-static void dfp_prepare_decimal64(struct PPC_DFP *dfp, uint64_t *a,
- uint64_t *b, CPUPPCState *env)
+static void dfp_prepare_decimal64(struct PPC_DFP *dfp, ppc_fprp_t *a,
+ ppc_fprp_t *b, CPUPPCState *env)
{
decContextDefault(&dfp->context, DEC_INIT_DECIMAL64);
dfp_prepare_rounding_mode(&dfp->context, env->fpscr);
@@ -167,8 +167,8 @@ static void dfp_prepare_decimal64(struct PPC_DFP *dfp, uint64_t *a,
}
}
-static void dfp_prepare_decimal128(struct PPC_DFP *dfp, uint64_t *a,
- uint64_t *b, CPUPPCState *env)
+static void dfp_prepare_decimal128(struct PPC_DFP *dfp, ppc_fprp_t *a,
+ ppc_fprp_t *b, CPUPPCState *env)
{
decContextDefault(&dfp->context, DEC_INIT_DECIMAL128);
dfp_prepare_rounding_mode(&dfp->context, env->fpscr);
@@ -416,7 +416,8 @@ static inline int dfp_get_digit(decNumber *dn, int n)
}
#define DFP_HELPER_TAB(op, dnop, postprocs, size) \
-void helper_##op(CPUPPCState *env, uint64_t *t, uint64_t *a, uint64_t *b) \
+void helper_##op(CPUPPCState *env, ppc_fprp_t *t, ppc_fprp_t *a, \
+ ppc_fprp_t *b) \
{ \
struct PPC_DFP dfp; \
dfp_prepare_decimal##size(&dfp, a, b, env); \
@@ -485,7 +486,7 @@ DFP_HELPER_TAB(ddiv, decNumberDivide, DIV_PPs, 64)
DFP_HELPER_TAB(ddivq, decNumberDivide, DIV_PPs, 128)
#define DFP_HELPER_BF_AB(op, dnop, postprocs, size) \
-uint32_t helper_##op(CPUPPCState *env, uint64_t *a, uint64_t *b) \
+uint32_t helper_##op(CPUPPCState *env, ppc_fprp_t *a, ppc_fprp_t *b) \
{ \
struct PPC_DFP dfp; \
dfp_prepare_decimal##size(&dfp, a, b, env); \
@@ -517,7 +518,7 @@ DFP_HELPER_BF_AB(dcmpo, decNumberCompare, CMPO_PPs, 64)
DFP_HELPER_BF_AB(dcmpoq, decNumberCompare, CMPO_PPs, 128)
#define DFP_HELPER_TSTDC(op, size) \
-uint32_t helper_##op(CPUPPCState *env, uint64_t *a, uint32_t dcm) \
+uint32_t helper_##op(CPUPPCState *env, ppc_fprp_t *a, uint32_t dcm) \
{ \
struct PPC_DFP dfp; \
int match = 0; \
@@ -545,7 +546,7 @@ DFP_HELPER_TSTDC(dtstdc, 64)
DFP_HELPER_TSTDC(dtstdcq, 128)
#define DFP_HELPER_TSTDG(op, size) \
-uint32_t helper_##op(CPUPPCState *env, uint64_t *a, uint32_t dcm) \
+uint32_t helper_##op(CPUPPCState *env, ppc_fprp_t *a, uint32_t dcm) \
{ \
struct PPC_DFP dfp; \
int minexp, maxexp, nzero_digits, nzero_idx, is_negative, is_zero, \
@@ -600,7 +601,7 @@ DFP_HELPER_TSTDG(dtstdg, 64)
DFP_HELPER_TSTDG(dtstdgq, 128)
#define DFP_HELPER_TSTEX(op, size) \
-uint32_t helper_##op(CPUPPCState *env, uint64_t *a, uint64_t *b) \
+uint32_t helper_##op(CPUPPCState *env, ppc_fprp_t *a, ppc_fprp_t *b) \
{ \
struct PPC_DFP dfp; \
int expa, expb, a_is_special, b_is_special; \
@@ -632,7 +633,7 @@ DFP_HELPER_TSTEX(dtstex, 64)
DFP_HELPER_TSTEX(dtstexq, 128)
#define DFP_HELPER_TSTSF(op, size) \
-uint32_t helper_##op(CPUPPCState *env, uint64_t *a, uint64_t *b) \
+uint32_t helper_##op(CPUPPCState *env, ppc_fprp_t *a, ppc_fprp_t *b) \
{ \
struct PPC_DFP dfp; \
unsigned k; \
@@ -669,7 +670,7 @@ DFP_HELPER_TSTSF(dtstsf, 64)
DFP_HELPER_TSTSF(dtstsfq, 128)
#define DFP_HELPER_TSTSFI(op, size) \
-uint32_t helper_##op(CPUPPCState *env, uint32_t a, uint64_t *b) \
+uint32_t helper_##op(CPUPPCState *env, uint32_t a, ppc_fprp_t *b) \
{ \
struct PPC_DFP dfp; \
unsigned uim; \
@@ -729,7 +730,7 @@ static void dfp_quantize(uint8_t rmc, struct PPC_DFP *dfp)
}
#define DFP_HELPER_QUAI(op, size) \
-void helper_##op(CPUPPCState *env, uint64_t *t, uint64_t *b, \
+void helper_##op(CPUPPCState *env, ppc_fprp_t *t, ppc_fprp_t *b, \
uint32_t te, uint32_t rmc) \
{ \
struct PPC_DFP dfp; \
@@ -755,8 +756,8 @@ DFP_HELPER_QUAI(dquai, 64)
DFP_HELPER_QUAI(dquaiq, 128)
#define DFP_HELPER_QUA(op, size) \
-void helper_##op(CPUPPCState *env, uint64_t *t, uint64_t *a, \
- uint64_t *b, uint32_t rmc) \
+void helper_##op(CPUPPCState *env, ppc_fprp_t *t, ppc_fprp_t *a, \
+ ppc_fprp_t *b, uint32_t rmc) \
{ \
struct PPC_DFP dfp; \
\
@@ -832,8 +833,8 @@ static void _dfp_reround(uint8_t rmc, int32_t ref_sig, int32_t xmax,
}
#define DFP_HELPER_RRND(op, size) \
-void helper_##op(CPUPPCState *env, uint64_t *t, uint64_t *a, \
- uint64_t *b, uint32_t rmc) \
+void helper_##op(CPUPPCState *env, ppc_fprp_t *t, ppc_fprp_t *a, \
+ ppc_fprp_t *b, uint32_t rmc) \
{ \
struct PPC_DFP dfp; \
uint64_t a64; \
@@ -861,7 +862,7 @@ DFP_HELPER_RRND(drrnd, 64)
DFP_HELPER_RRND(drrndq, 128)
#define DFP_HELPER_RINT(op, postprocs, size) \
-void helper_##op(CPUPPCState *env, uint64_t *t, uint64_t *b, \
+void helper_##op(CPUPPCState *env, ppc_fprp_t *t, ppc_fprp_t *b, \
uint32_t r, uint32_t rmc) \
{ \
struct PPC_DFP dfp; \
@@ -899,7 +900,7 @@ static void RINTN_PPs(struct PPC_DFP *dfp)
DFP_HELPER_RINT(drintn, RINTN_PPs, 64)
DFP_HELPER_RINT(drintnq, RINTN_PPs, 128)
-void helper_dctdp(CPUPPCState *env, uint64_t *t, uint64_t *b)
+void helper_dctdp(CPUPPCState *env, ppc_fprp_t *t, ppc_fprp_t *b)
{
struct PPC_DFP dfp;
uint64_t b64;
@@ -915,7 +916,7 @@ void helper_dctdp(CPUPPCState *env, uint64_t *t, uint64_t *b)
dfp_set_FPRF_from_FRT(&dfp);
}
-void helper_dctqpq(CPUPPCState *env, uint64_t *t, uint64_t *b)
+void helper_dctqpq(CPUPPCState *env, ppc_fprp_t *t, ppc_fprp_t *b)
{
struct PPC_DFP dfp;
uint64_t b64;
@@ -930,7 +931,7 @@ void helper_dctqpq(CPUPPCState *env, uint64_t *t, uint64_t *b)
set_dfp128(t, dfp.t64);
}
-void helper_drsp(CPUPPCState *env, uint64_t *t, uint64_t *b)
+void helper_drsp(CPUPPCState *env, ppc_fprp_t *t, ppc_fprp_t *b)
{
struct PPC_DFP dfp;
uint32_t t_short = 0;
@@ -948,7 +949,7 @@ void helper_drsp(CPUPPCState *env, uint64_t *t, uint64_t *b)
set_dfp64(t, &t64);
}
-void helper_drdpq(CPUPPCState *env, uint64_t *t, uint64_t *b)
+void helper_drdpq(CPUPPCState *env, ppc_fprp_t *t, ppc_fprp_t *b)
{
struct PPC_DFP dfp;
dfp_prepare_decimal128(&dfp, 0, b, env);
@@ -967,7 +968,7 @@ void helper_drdpq(CPUPPCState *env, uint64_t *t, uint64_t *b)
}
#define DFP_HELPER_CFFIX(op, size) \
-void helper_##op(CPUPPCState *env, uint64_t *t, uint64_t *b) \
+void helper_##op(CPUPPCState *env, ppc_fprp_t *t, ppc_fprp_t *b) \
{ \
struct PPC_DFP dfp; \
uint64_t b64; \
@@ -994,7 +995,7 @@ DFP_HELPER_CFFIX(dcffix, 64)
DFP_HELPER_CFFIX(dcffixq, 128)
#define DFP_HELPER_CTFIX(op, size) \
-void helper_##op(CPUPPCState *env, uint64_t *t, uint64_t *b) \
+void helper_##op(CPUPPCState *env, ppc_fprp_t *t, ppc_fprp_t *b) \
{ \
struct PPC_DFP dfp; \
dfp_prepare_decimal##size(&dfp, 0, b, env); \
@@ -1057,7 +1058,8 @@ static inline void dfp_set_sign_128(uint64_t *t, uint8_t sgn)
}
#define DFP_HELPER_DEDPD(op, size) \
-void helper_##op(CPUPPCState *env, uint64_t *t, uint64_t *b, uint32_t sp) \
+void helper_##op(CPUPPCState *env, ppc_fprp_t *t, ppc_fprp_t *b, \
+ uint32_t sp) \
{ \
struct PPC_DFP dfp; \
uint8_t digits[34]; \
@@ -1105,7 +1107,8 @@ static inline uint8_t dfp_get_bcd_digit_128(uint64_t *t, unsigned n)
}
#define DFP_HELPER_ENBCD(op, size) \
-void helper_##op(CPUPPCState *env, uint64_t *t, uint64_t *b, uint32_t s) \
+void helper_##op(CPUPPCState *env, ppc_fprp_t *t, ppc_fprp_t *b, \
+ uint32_t s) \
{ \
struct PPC_DFP dfp; \
uint8_t digits[32]; \
@@ -1166,7 +1169,7 @@ DFP_HELPER_ENBCD(denbcd, 64)
DFP_HELPER_ENBCD(denbcdq, 128)
#define DFP_HELPER_XEX(op, size) \
-void helper_##op(CPUPPCState *env, uint64_t *t, uint64_t *b) \
+void helper_##op(CPUPPCState *env, ppc_fprp_t *t, ppc_fprp_t *b) \
{ \
struct PPC_DFP dfp; \
uint64_t t64; \
@@ -1212,7 +1215,8 @@ static void dfp_set_raw_exp_128(uint64_t *t, uint64_t raw)
}
#define DFP_HELPER_IEX(op, size) \
-void helper_##op(CPUPPCState *env, uint64_t *t, uint64_t *a, uint64_t *b) \
+void helper_##op(CPUPPCState *env, ppc_fprp_t *t, ppc_fprp_t *a, \
+ ppc_fprp_t *b) \
{ \
struct PPC_DFP dfp; \
uint64_t raw_qnan, raw_snan, raw_inf, max_exp, a64; \
@@ -1309,7 +1313,7 @@ static void dfp_clear_lmd_from_g5msb(uint64_t *t)
}
#define DFP_HELPER_SHIFT(op, size, shift_left) \
-void helper_##op(CPUPPCState *env, uint64_t *t, uint64_t *a, \
+void helper_##op(CPUPPCState *env, ppc_fprp_t *t, ppc_fprp_t *a, \
uint32_t sh) \
{ \
struct PPC_DFP dfp; \
diff --git a/target/ppc/helper.h b/target/ppc/helper.h
index 54ea9b9500..f843814b8a 100644
--- a/target/ppc/helper.h
+++ b/target/ppc/helper.h
@@ -686,7 +686,7 @@ DEF_HELPER_3(store_601_batu, void, env, i32, tl)
#endif
#define dh_alias_fprp ptr
-#define dh_ctype_fprp uint64_t *
+#define dh_ctype_fprp ppc_fprp_t *
#define dh_is_signed_fprp dh_is_signed_ptr
DEF_HELPER_4(dadd, void, env, fprp, fprp, fprp)
--
2.21.0
next prev parent reply other threads:[~2019-10-04 9:49 UTC|newest]
Thread overview: 56+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-10-04 9:36 [PULL 00/53] ppc-for-4.2 queue 20191004 David Gibson
2019-10-04 9:36 ` [PULL 01/53] pseries: do not allow memory-less/cpu-less NUMA node David Gibson
2019-10-04 9:36 ` [PULL 02/53] ppc/pnv: fix "bmc" node name in DT David Gibson
2019-10-04 9:36 ` [PULL 03/53] spapr-tpm-proxy: Drop misleading check David Gibson
2019-10-04 9:36 ` [PULL 04/53] hw/ppc/pnv: fix checkpatch.pl coding style warnings David Gibson
2019-10-04 9:36 ` [PULL 05/53] spapr: Report kvm_irqchip_in_kernel() in 'info pic' David Gibson
2019-10-04 9:37 ` [PULL 06/53] hw/ppc/pnv_xscom: retrieve homer/occ base address from PBA BARs David Gibson
2019-10-04 9:37 ` [PULL 07/53] hw/ppc/pnv_occ: add sram device model for occ common area David Gibson
2019-10-04 9:37 ` [PULL 08/53] hw/ppc/pnv_homer: add PowerNV homer device model David Gibson
2019-10-04 9:37 ` [PULL 09/53] spapr/irq: Introduce an ics_irq_free() helper David Gibson
2019-10-04 9:37 ` [PULL 10/53] spapr/irq: Only claim VALID interrupts at the KVM level David Gibson
2019-10-04 9:37 ` [PULL 11/53] ppc: Add support for 'mffscrn','mffscrni' instructions David Gibson
2019-10-04 9:37 ` [PULL 12/53] ppc: Add support for 'mffsce' instruction David Gibson
2019-10-04 9:37 ` [PULL 13/53] ppc: Use FPSCR defines instead of constants David Gibson
2019-10-04 9:37 ` [PULL 14/53] ppc/kvm: Skip writing DPDES back when in run time state David Gibson
2019-10-04 9:37 ` [PULL 15/53] spapr: Simplify handling of pre ISA 3.0 guest workaround handling David Gibson
2019-10-04 9:37 ` [PULL 16/53] spapr: Move handling of special NVLink numa node from reset to init David Gibson
2019-10-04 9:37 ` [PULL 17/53] spapr: Fixes a leak in CAS David Gibson
2019-10-04 9:37 ` [PULL 18/53] spapr: Skip leading zeroes from memory@ DT node names David Gibson
2019-10-04 9:37 ` [PULL 19/53] spapr: Do not put empty properties for -kernel/-initrd/-append David Gibson
2019-10-04 9:37 ` [PULL 20/53] spapr: Stop providing RTAS blob David Gibson
2019-10-04 9:37 ` [PULL 21/53] pseries: Update SLOF firmware image David Gibson
2019-10-04 9:37 ` [PULL 22/53] target/ppc: introduce get_dfp{64, 128}() helper functions David Gibson
2019-10-04 9:37 ` [PULL 23/53] target/ppc: introduce set_dfp{64, " David Gibson
2019-10-04 9:37 ` David Gibson [this message]
2019-10-04 9:37 ` [PULL 25/53] target/ppc: introduce dfp_finalize_decimal{64, " David Gibson
2019-10-04 9:37 ` [PULL 26/53] target/ppc: change struct PPC_DFP decimal storage from uint64[2] to ppc_vsr_t David Gibson
2019-10-04 9:37 ` [PULL 27/53] target/ppc: use existing VsrD() macro to eliminate HI_IDX and LO_IDX from dfp_helper.c David Gibson
2019-10-04 9:37 ` [PULL 28/53] target/ppc: remove unnecessary if() around calls to set_dfp{64, 128}() in DFP macros David Gibson
2019-10-04 9:37 ` [PULL 29/53] spapr-pci: Stop providing assigned-addresses David Gibson
2019-10-04 9:37 ` [PULL 30/53] spapr: Render full FDT on ibm, client-architecture-support David Gibson
2019-12-03 16:11 ` [PULL 30/53] spapr: Render full FDT on ibm,client-architecture-support Laurent Vivier
2019-10-04 9:37 ` [PULL 31/53] target/ppc: use Vsr macros in BCD helpers David Gibson
2019-10-04 9:37 ` [PULL 32/53] spapr/xive: skip partially initialized vCPUs in presenter David Gibson
2019-10-04 9:37 ` [PULL 33/53] xics: Minor fixes for XICSFabric interface David Gibson
2019-10-04 9:37 ` [PULL 34/53] xics: Eliminate 'reject', 'resend' and 'eoi' class hooks David Gibson
2019-10-04 9:37 ` [PULL 35/53] xics: Rename misleading ics_simple_*() functions David Gibson
2019-10-04 9:37 ` [PULL 36/53] xics: Eliminate reset hook David Gibson
2019-10-04 9:37 ` [PULL 37/53] xics: Merge TYPE_ICS_BASE and TYPE_ICS_SIMPLE classes David Gibson
2019-10-04 9:37 ` [PULL 38/53] xics: Create sPAPR specific ICS subtype David Gibson
2019-10-04 9:37 ` [PULL 39/53] spapr: Fold spapr_phb_lsi_qirq() into its single caller David Gibson
2019-10-04 9:37 ` [PULL 40/53] spapr: Replace spapr_vio_qirq() helper with spapr_vio_irq_pulse() helper David Gibson
2019-10-04 9:37 ` [PULL 41/53] spapr: Clarify and fix handling of nr_irqs David Gibson
2019-10-04 9:37 ` [PULL 42/53] spapr: Eliminate nr_irqs parameter to SpaprIrq::init David Gibson
2019-10-04 9:37 ` [PULL 43/53] spapr: Fix indexing of XICS irqs David Gibson
2019-10-04 9:37 ` [PULL 44/53] spapr: Simplify spapr_qirq() handling David Gibson
2019-10-04 9:37 ` [PULL 45/53] spapr: Eliminate SpaprIrq:get_nodename method David Gibson
2019-10-04 9:37 ` [PULL 46/53] spapr: Remove unhelpful tracepoints from spapr_irq_free_xics() David Gibson
2019-10-04 9:37 ` [PULL 47/53] spapr: Handle freeing of multiple irqs in frontend only David Gibson
2019-10-04 9:37 ` [PULL 48/53] spapr, xics, xive: Better use of assert()s on irq claim/free paths David Gibson
2019-10-04 9:37 ` [PULL 49/53] xive: Improve irq claim/free path David Gibson
2019-10-04 9:37 ` [PULL 50/53] spapr: Use less cryptic representation of which irq backends are supported David Gibson
2019-10-04 9:37 ` [PULL 51/53] spapr: Add return value to spapr_irq_check() David Gibson
2019-10-04 9:37 ` [PULL 52/53] spapr: Eliminate SpaprIrq::init hook David Gibson
2019-10-04 9:37 ` [PULL 53/53] ppc/pnv: Remove the XICSFabric Interface from the POWER9 machine David Gibson
2019-10-07 14:40 ` [PULL 00/53] ppc-for-4.2 queue 20191004 Peter Maydell
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