6.1-stable review patch. If anyone has any objections, please let me know.
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From: Nicholas Piggin npiggin@gmail.com
commit 505ea33089dcfc3ee3201b0fcb94751165805413 upstream.
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 Cc: Guenter Roeck linux@roeck-us.net Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/crypto/vmx/Makefile | 12 +++++++++++- drivers/crypto/vmx/ppc-xlate.pl | 10 ++++++---- 2 files changed, 17 insertions(+), 5 deletions(-)
--- a/drivers/crypto/vmx/Makefile +++ b/drivers/crypto/vmx/Makefile @@ -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) > $@
targets += aesp8-ppc.S ghashp8-ppc.S
--- a/drivers/crypto/vmx/ppc-xlate.pl +++ b/drivers/crypto/vmx/ppc-xlate.pl @@ -9,6 +9,8 @@ open STDOUT,">$output" || die "can't ope
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) {