[PATCH v2 15/17] hw/misc/aspeed_hace: Enable the crypto command on the AST2700

[Jamin Lin <jamin_lin@aspeedtech.com>]

With direct/scatter-gather access, 64-bit DMA and AES-GCM all in place,
the AST2700 crypto engine is now fully modelled. Drop its temporary
interrupt-only workaround so the crypto command runs for real, like the
other HACE variants.

Signed-off-by: Jamin Lin <jamin_lin@aspeedtech.com>
---
 include/hw/misc/aspeed_hace.h |  1 -
 hw/misc/aspeed_hace.c         | 15 +--------------
 2 files changed, 1 insertion(+), 15 deletions(-)

diff --git a/include/hw/misc/aspeed_hace.h b/include/hw/misc/aspeed_hace.h
index b5416b0cb5..9b0e7683fa 100644
--- a/include/hw/misc/aspeed_hace.h
+++ b/include/hw/misc/aspeed_hace.h
@@ -49,7 +49,6 @@ struct AspeedHACEClass {
     uint32_t key_mask;
     uint32_t hash_mask;
     uint64_t nr_regs;
-    bool raise_crypt_interrupt_workaround;
     uint32_t src_hi_mask;
     uint32_t dest_hi_mask;
     uint32_t key_hi_mask;
diff --git a/hw/misc/aspeed_hace.c b/hw/misc/aspeed_hace.c
index 927759b48f..90d43c0676 100644
--- a/hw/misc/aspeed_hace.c
+++ b/hw/misc/aspeed_hace.c
@@ -1005,14 +1005,7 @@ static void aspeed_hace_write(void *opaque, hwaddr addr, uint64_t data,
         break;
     }
     case R_CRYPT_CMD:
-        /*
-         * The AST2700 crypto engine needs 64-bit DMA and AES-GCM, which are
-         * added later; until then it keeps the temporary workaround of only
-         * raising the completion interrupt without running the command.
-         */
-        if (!ahc->raise_crypt_interrupt_workaround) {
-            do_crypt_operation(s, data);
-        }
+        do_crypt_operation(s, data);
 
         /* Hardware raises the crypt interrupt once the command finishes. */
         s->regs[R_STATUS] |= CRYPT_IRQ;
@@ -1216,12 +1209,6 @@ static void aspeed_ast2700_hace_class_init(ObjectClass *klass, const void *data)
     ahc->dest_hi_mask = 0x00000003;
     ahc->key_hi_mask = 0x00000003;
 
-    /*
-     * Currently, it does not support the CRYPT command. Instead, it only
-     * sends an interrupt to notify the firmware that the crypt command
-     * has completed. It is a temporary workaround.
-     */
-    ahc->raise_crypt_interrupt_workaround = true;
     ahc->has_dma64 = true;
 }
 
-- 
2.43.0