Post by Sudakshina DasHi
This patch is part of the patch series to add support for ARMv8.5-A
Memory Tagging Extensions.
(https://developer.arm.com/products/architecture/cpu-architecture/a-profile/exploration-tools)
Memory Tagging Extension (MTE) is an optional extension to
ARMv8.5-A and is enabled using the +memtag command line option.
This patch adds all the data cache instructions that are part of this
- DC IGVAC, Xt
- DC IGSW, Xt
- DC CGSW, Xt
- DC CIGSW, Xt
- DC CGVAC, Xt
- DC CGVAP, Xt
- DC CGVADP, Xt
- DC CIGVAC, Xt
- DC GVA, Xt
- DC IGDVAC, Xt
- DC IGDSW, Xt
- DC CGDSW, Xt
- DC CIGDSW, Xt
- DC CGDVAC, Xt
- DC CGDVAP, Xt
- DC CGDVADP, Xt
- DC CIGDVAC, Xt
- DC GZVA, Xt
Testing done: Builds and reg tests all pass on aarch64-none-linux-gnu.
Added test.
Is this ok for trunk?
Thanks
Sudi
*** opcodes/ChangeLog ***
* aarch64-opc.c (aarch64_sys_regs_dc): New entries for
IGVAC, IGSW, CGSW, CIGSW, CGVAC, CGVAP, CGVADP, CIGVAC, GVA,
IGDVAC, IGDSW, CGDSW, CIGDSW, CGDVAC, CGDVAP, CGDVADP,
CIGDVAC and GZVA.
(aarch64_sys_ins_reg_supported_p): New check for above.
*** gas/ChangeLog ***
* testsuite/gas/aarch64/sysreg-4.s: Test IGVAC, IGSW,
CGSW, CIGSW, CGVAC, CGVAP, CGVADP, CIGVAC, GVA,
IGDVAC, IGDSW, CGDSW, CIGDSW, CGDVAC, CGDVAP, CGDVADP,
CIGDVAC and GZVA with DC.
* testsuite/gas/aarch64/sysreg-4.d: Likewise.
* testsuite/gas/aarch64/illegal-sysreg-4.l: Likewise.
rb10040.patch
diff --git a/gas/testsuite/gas/aarch64/illegal-sysreg-4.l b/gas/testsuite/gas/aarch64/illegal-sysreg-4.l
index 36abf4f5b18b14881297230df3bdcea240a4b0b9..d431f9bfc57a1292cb2221f708e63d4e9d2ec401 100644
--- a/gas/testsuite/gas/aarch64/illegal-sysreg-4.l
+++ b/gas/testsuite/gas/aarch64/illegal-sysreg-4.l
@@ -35,3 +35,21 @@
[^:]*:[0-9]+: Error: selected processor does not support system register name 'rgsr_el1'
[^:]*:[0-9]+: Error: selected processor does not support system register name 'gcr_el1'
[^:]*:[0-9]+: Error: selected processor does not support PSTATE field name 'tco'
+[^:]*:[0-9]+: Error: selected processor does not support system register name 'igvac'
+[^:]*:[0-9]+: Error: selected processor does not support system register name 'igsw'
+[^:]*:[0-9]+: Error: selected processor does not support system register name 'cgsw'
+[^:]*:[0-9]+: Error: selected processor does not support system register name 'cigsw'
+[^:]*:[0-9]+: Error: selected processor does not support system register name 'cgvac'
+[^:]*:[0-9]+: Error: selected processor does not support system register name 'cgvap'
+[^:]*:[0-9]+: Error: selected processor does not support system register name 'cgvadp'
+[^:]*:[0-9]+: Error: selected processor does not support system register name 'cigvac'
+[^:]*:[0-9]+: Error: selected processor does not support system register name 'gva'
+[^:]*:[0-9]+: Error: selected processor does not support system register name 'igdvac'
+[^:]*:[0-9]+: Error: selected processor does not support system register name 'igdsw'
+[^:]*:[0-9]+: Error: selected processor does not support system register name 'cgdsw'
+[^:]*:[0-9]+: Error: selected processor does not support system register name 'cigdsw'
+[^:]*:[0-9]+: Error: selected processor does not support system register name 'cgdvac'
+[^:]*:[0-9]+: Error: selected processor does not support system register name 'cgdvap'
+[^:]*:[0-9]+: Error: selected processor does not support system register name 'cgdvadp'
+[^:]*:[0-9]+: Error: selected processor does not support system register name 'cigdvac'
+[^:]*:[0-9]+: Error: selected processor does not support system register name 'gzva'
diff --git a/gas/testsuite/gas/aarch64/sysreg-4.d b/gas/testsuite/gas/aarch64/sysreg-4.d
index 0abeed8322ff9876cb53712df4f866d27537840d..ab6e217fc1beb0d59744eab987e537430f128d57 100644
--- a/gas/testsuite/gas/aarch64/sysreg-4.d
+++ b/gas/testsuite/gas/aarch64/sysreg-4.d
.*: d51810a1 msr rgsr_el1, x1
.*: d51810c3 msr gcr_el1, x3
.*: d503489f msr tco, #0x8
+.*: d5087661 dc igvac, x1
+.*: d5087682 dc igsw, x2
+.*: d5087a83 dc cgsw, x3
+.*: d5087e84 dc cigsw, x4
+.*: d50b7a65 dc cgvac, x5
+.*: d50b7c66 dc cgvap, x6
+.*: d50b7d67 dc cgvadp, x7
+.*: d50b7e68 dc cigvac, x8
+.*: d50b7469 dc gva, x9
+.*: d50876aa dc igdvac, x10
+.*: d50876cb dc igdsw, x11
+.*: d5087acc dc cgdsw, x12
+.*: d5087ecd dc cigdsw, x13
+.*: d50b7aae dc cgdvac, x14
+.*: d50b7caf dc cgdvap, x15
+.*: d50b7db0 dc cgdvadp, x16
+.*: d50b7eb1 dc cigdvac, x17
+.*: d50b7492 dc gzva, x18
diff --git a/gas/testsuite/gas/aarch64/sysreg-4.s b/gas/testsuite/gas/aarch64/sysreg-4.s
index d25e9b91dfe5faf7891453096a48e61de0ab96b9..6c18b4a4e402827b960b058b45cb538c8e48cbe8 100644
--- a/gas/testsuite/gas/aarch64/sysreg-4.s
+++ b/gas/testsuite/gas/aarch64/sysreg-4.s
# MSR (immediate)
msr TCO, #8
+
+ # Data cache
+ dc igvac, x1
+ dc igsw, x2
+ dc cgsw, x3
+ dc cigsw, x4
+ dc cgvac, x5
+ dc cgvap, x6
+ dc cgvadp, x7
+ dc cigvac, x8
+
+ dc gva, x9
+
+ dc igdvac, x10
+ dc igdsw, x11
+ dc cgdsw, x12
+ dc cigdsw, x13
+ dc cgdvac, x14
+ dc cgdvap, x15
+ dc cgdvadp, x16
+ dc cigdvac, x17
+
+ dc gzva, x18
diff --git a/opcodes/aarch64-opc.c b/opcodes/aarch64-opc.c
index edd5b2d09d05bf2e92a247b87becb1d16fe4c0be..40a7d20b7467783ae28fac71e79478196578f43b 100644
--- a/opcodes/aarch64-opc.c
+++ b/opcodes/aarch64-opc.c
@@ -4458,15 +4458,33 @@ const aarch64_sys_ins_reg aarch64_sys_regs_ic[] =
const aarch64_sys_ins_reg aarch64_sys_regs_dc[] =
{
{ "zva", CPENS (3, C7, C4, 1), F_HASXT },
+ { "gva", CPENS (3, C7, C4, 3), F_HASXT | F_ARCHEXT },
+ { "gzva", CPENS (3, C7, C4, 4), F_HASXT | F_ARCHEXT },
{ "ivac", CPENS (0, C7, C6, 1), F_HASXT },
+ { "igvac", CPENS (0, C7, C6, 3), F_HASXT | F_ARCHEXT },
+ { "igsw", CPENS (0, C7, C6, 4), F_HASXT | F_ARCHEXT },
{ "isw", CPENS (0, C7, C6, 2), F_HASXT },
+ { "igdvac", CPENS (0, C7, C6, 5), F_HASXT | F_ARCHEXT },
+ { "igdsw", CPENS (0, C7, C6, 6), F_HASXT | F_ARCHEXT },
{ "cvac", CPENS (3, C7, C10, 1), F_HASXT },
+ { "cgvac", CPENS (3, C7, C10, 3), F_HASXT | F_ARCHEXT },
+ { "cgdvac", CPENS (3, C7, C10, 5), F_HASXT | F_ARCHEXT },
{ "csw", CPENS (0, C7, C10, 2), F_HASXT },
+ { "cgsw", CPENS (0, C7, C10, 4), F_HASXT | F_ARCHEXT },
+ { "cgdsw", CPENS (0, C7, C10, 6), F_HASXT | F_ARCHEXT },
{ "cvau", CPENS (3, C7, C11, 1), F_HASXT },
{ "cvap", CPENS (3, C7, C12, 1), F_HASXT | F_ARCHEXT },
+ { "cgvap", CPENS (3, C7, C12, 3), F_HASXT | F_ARCHEXT },
+ { "cgdvap", CPENS (3, C7, C12, 5), F_HASXT | F_ARCHEXT },
{ "cvadp", CPENS (3, C7, C13, 1), F_HASXT | F_ARCHEXT },
+ { "cgvadp", CPENS (3, C7, C13, 3), F_HASXT | F_ARCHEXT },
+ { "cgdvadp", CPENS (3, C7, C13, 5), F_HASXT | F_ARCHEXT },
{ "civac", CPENS (3, C7, C14, 1), F_HASXT },
+ { "cigvac", CPENS (3, C7, C14, 3), F_HASXT | F_ARCHEXT },
+ { "cigdvac", CPENS (3, C7, C14, 5), F_HASXT | F_ARCHEXT },
{ "cisw", CPENS (0, C7, C14, 2), F_HASXT },
+ { "cigsw", CPENS (0, C7, C14, 4), F_HASXT | F_ARCHEXT },
+ { "cigdsw", CPENS (0, C7, C14, 6), F_HASXT | F_ARCHEXT },
{ 0, CPENS(0,0,0,0), 0 }
};
@@ -4605,6 +4623,28 @@ aarch64_sys_ins_reg_supported_p (const aarch64_feature_set features,
&& !AARCH64_CPU_HAS_FEATURE (features, AARCH64_FEATURE_CVADP))
return FALSE;
+ /* DC <dc_op> for ARMv8.5-A Memory Tagging Extension. */
+ if ((reg->value == CPENS (0, C7, C6, 3)
+ || reg->value == CPENS (0, C7, C6, 4)
+ || reg->value == CPENS (0, C7, C10, 4)
+ || reg->value == CPENS (0, C7, C14, 4)
+ || reg->value == CPENS (3, C7, C10, 3)
+ || reg->value == CPENS (3, C7, C12, 3)
+ || reg->value == CPENS (3, C7, C13, 3)
+ || reg->value == CPENS (3, C7, C14, 3)
+ || reg->value == CPENS (3, C7, C4, 3)
+ || reg->value == CPENS (0, C7, C6, 5)
+ || reg->value == CPENS (0, C7, C6, 6)
+ || reg->value == CPENS (0, C7, C10, 6)
+ || reg->value == CPENS (0, C7, C14, 6)
+ || reg->value == CPENS (3, C7, C10, 5)
+ || reg->value == CPENS (3, C7, C12, 5)
+ || reg->value == CPENS (3, C7, C13, 5)
+ || reg->value == CPENS (3, C7, C14, 5)
+ || reg->value == CPENS (3, C7, C4, 4))
+ && !AARCH64_CPU_HAS_FEATURE (features, AARCH64_FEATURE_MTE))
+ return FALSE;
+
/* AT S1E1RP, AT S1E1WP. Values are from aarch64_sys_regs_at. */
if ((reg->value == CPENS (0, C7, C9, 0)
|| reg->value == CPENS (0, C7, C9, 1))
OK (modulo MTE).