gustavonihei commented on code in PR #6304:
URL: https://github.com/apache/incubator-nuttx/pull/6304#discussion_r878131472
##########
arch/risc-v/src/mpfs/hardware/mpfs_ihc.h:
##########
@@ -274,57 +274,19 @@
#define IHC_MAX_MESSAGE_SIZE 4
-typedef union ihca_ip_int_en_t_
-{
- uint32_t int_en;
- struct
- {
- uint32_t mp_h0_en : 1;
- uint32_t ack_h0_en : 1;
- uint32_t mp_h1_en : 1;
- uint32_t ack_h1_en : 1;
- uint32_t mp_h2_en : 1;
- uint32_t ack_h2_en : 1;
- uint32_t mp_h3_en : 1;
- uint32_t ack_h3_en : 1;
- uint32_t mp_h4_en : 1;
- uint32_t ack_h4_en : 1;
- uint32_t reserved : 22;
- } bitfield;
-} ihca_ip_int_en_t;
-
-typedef union ihca_ip_msg_avail_stat_t_
-{
- uint32_t msg_avail;
- struct
- {
- uint32_t mp_h0 : 1;
- uint32_t ack_h0 : 1;
- uint32_t mp_h1 : 1;
- uint32_t ack_h1 : 1;
- uint32_t mp_h2 : 1;
- uint32_t ack_h2 : 1;
- uint32_t mp_h3 : 1;
- uint32_t ack_h3 : 1;
- uint32_t mp_h4 : 1;
- uint32_t ack_h4 : 1;
- uint32_t reserved : 22;
- } bitfield;
-} ihca_ip_msg_avail_stat_t;
-
-typedef union
+#define SBI_EXT_IHC_CTX_INIT 0
+#define SBI_EXT_IHC_SEND 1
+#define SBI_EXT_IHC_RECEIVE 2
+
+typedef enum
{
- uint32_t ctl_reg;
- struct
- {
- uint32_t rpm :1; /* Remote message present */
- uint32_t mp :1; /* Message present */
- uint32_t mpie :1; /* Message present interrupt enable */
- uint32_t ack :1;
- uint32_t clr_ack :1;
- uint32_t ackie :1; /* Ack interrupt enable */
- uint32_t reserved :26;
- } bitfield;
-} miv_ihcc_ctl_reg_t;
+ IHC_CHANNEL_TO_HART0 = 0x00, /* Your hart to hart 0 */
+ IHC_CHANNEL_TO_HART1 = 0x01, /* Your hart to hart 1 */
+ IHC_CHANNEL_TO_HART2 = 0x02, /* Your hart to hart 2 */
+ IHC_CHANNEL_TO_HART3 = 0x03, /* Your hart to hart 3 */
+ IHC_CHANNEL_TO_HART4 = 0x04, /* Your hart to hart 4 */
+ IHC_CHANNEL_TO_CONTEXTA = 0x05, /* Your hart to context A */
+ IHC_CHANNEL_TO_CONTEXTB = 0x06, /* Your hart to context B */
+} ihc_channel_t;
Review Comment:
```suggestion
};
typedef enum ihc_channel_e ihc_channel_t;
```
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