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powerpc/64: Add big-endian ELFv2 flavour to crypto VMX asm generation 

This allows asm generation for big-endian ELFv2 builds.

Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Reviewed-by: Joel Stanley <joel@jms.id.au>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20221128041539.1742489-4-npiggin@gmail.com
This commit is contained in:
Nicholas Piggin 2022-11-28 14:15:38 +10:00 committed by Michael Ellerman
parent de3d098dd1
commit 505ea33089
2 changed files with 17 additions and 5 deletions
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12
drivers/crypto/vmx/Makefile
View File

@ -2,8 +2,18 @@
obj-$(CONFIG_CRYPTO_DEV_VMX_ENCRYPT) += vmx-crypto.o
vmx-crypto-objs := vmx.o aesp8-ppc.o ghashp8-ppc.o aes.o aes_cbc.o aes_ctr.o aes_xts.o ghash.o
ifeq ($(CONFIG_CPU_LITTLE_ENDIAN),y)
override flavour := linux-ppc64le
else
ifdef CONFIG_PPC64_ELF_ABI_V2
override flavour := linux-ppc64-elfv2
else
override flavour := linux-ppc64
endif
endif
quiet_cmd_perl = PERL $@
cmd_perl = $(PERL) $< $(if $(CONFIG_CPU_LITTLE_ENDIAN), linux-ppc64le, linux-ppc64) > $@
cmd_perl = $(PERL) $< $(flavour) > $@
targets += aesp8-ppc.S ghashp8-ppc.S

10
drivers/crypto/vmx/ppc-xlate.pl
View File

@ -9,6 +9,8 @@ open STDOUT,">$output" || die "can't open $output: $!";
my %GLOBALS;
my $dotinlocallabels=($flavour=~/linux/)?1:0;
my $elfv2abi=(($flavour =~ /linux-ppc64le/) or ($flavour =~ /linux-ppc64-elfv2/))?1:0;
my $dotfunctions=($elfv2abi=~1)?0:1;
################################################################
# directives which need special treatment on different platforms
@ -40,7 +42,7 @@ my $globl = sub {
};
my $text = sub {
my $ret = ($flavour =~ /aix/) ? ".csect\t.text[PR],7" : ".text";
$ret = ".abiversion 2\n".$ret if ($flavour =~ /linux.*64le/);
$ret = ".abiversion 2\n".$ret if ($elfv2abi);
$ret;
};
my $machine = sub {
@ -56,8 +58,8 @@ my $size = sub {
if ($flavour =~ /linux/)
{ shift;
my $name = shift; $name =~ s|^[\.\_]||;
my $ret = ".size $name,.-".($flavour=~/64$/?".":"").$name;
$ret .= "\n.size .$name,.-.$name" if ($flavour=~/64$/);
my $ret = ".size $name,.-".($dotfunctions?".":"").$name;
$ret .= "\n.size .$name,.-.$name" if ($dotfunctions);
$ret;
}
else
@ -142,7 +144,7 @@ my $vmr = sub {
# Some ABIs specify vrsave, special-purpose register #256, as reserved
# for system use.
my $no_vrsave = ($flavour =~ /linux-ppc64le/);
my $no_vrsave = ($elfv2abi);
my $mtspr = sub {
my ($f,$idx,$ra) = @_;
if ($idx == 256 && $no_vrsave) {