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crypto: hisilicon - allow compile-testing on x86

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To avoid missing arm64 specific warnings that get introduced
in this driver, allow compile-testing on all 64-bit architectures.

The only actual arm64 specific code in this driver is an open-
coded 128 bit MMIO write. On non-arm64 the same can be done
using memcpy_toio. What I also noticed is that the mmio store
(either one) is not endian-safe, this will only work on little-
endian configurations, so I also add a Kconfig dependency on
that, regardless of the architecture.
Finally, a depenndecy on CONFIG_64BIT is needed because of the
writeq().

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Arnd Bergmann 2019-09-19 16:09:06 +02:00 committed by Herbert Xu
parent 5fd39c4d96
commit a7174f9785
2 changed files with 12 additions and 3 deletions
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9
drivers/crypto/hisilicon/Kconfig
View File

@ -16,14 +16,15 @@ config CRYPTO_DEV_HISI_SEC
config CRYPTO_DEV_HISI_QM
tristate
depends on ARM64 && PCI && PCI_MSI
depends on ARM64 || COMPILE_TEST
depends on PCI && PCI_MSI
help
HiSilicon accelerator engines use a common queue management
interface. Specific engine driver may use this module.
config CRYPTO_HISI_SGL
tristate
depends on ARM64
depends on ARM64 || COMPILE_TEST
help
HiSilicon accelerator engines use a common hardware scatterlist
interface for data format. Specific engine driver may use this
@ -31,7 +32,9 @@ config CRYPTO_HISI_SGL
config CRYPTO_DEV_HISI_ZIP
tristate "Support for HiSilicon ZIP accelerator"
depends on ARM64 && PCI && PCI_MSI
depends on PCI && PCI_MSI
depends on ARM64 || (COMPILE_TEST && 64BIT)
depends on !CPU_BIG_ENDIAN || COMPILE_TEST
select CRYPTO_DEV_HISI_QM
select CRYPTO_HISI_SGL
select SG_SPLIT

6
drivers/crypto/hisilicon/qm.c
View File

@ -331,6 +331,12 @@ static void qm_mb_write(struct hisi_qm *qm, const void *src)
void __iomem *fun_base = qm->io_base + QM_MB_CMD_SEND_BASE;
unsigned long tmp0 = 0, tmp1 = 0;
if (!IS_ENABLED(CONFIG_ARM64)) {
memcpy_toio(fun_base, src, 16);
wmb();
return;
}
asm volatile("ldp %0, %1, %3\n"
"stp %0, %1, %2\n"
"dsb sy\n"