From 6517fe26a2a0c89c3112f4a383c601572c71d64a Mon Sep 17 00:00:00 2001 From: Andrew Waterman Date: Thu, 12 Mar 2015 17:38:04 -0700 Subject: Update to new privileged spec --- pk/frontend.h | 15 +++++++++++++++ 1 file changed, 15 insertions(+) (limited to 'pk/frontend.h') diff --git a/pk/frontend.h b/pk/frontend.h index dde0d0c..b6418f2 100644 --- a/pk/frontend.h +++ b/pk/frontend.h @@ -3,6 +3,21 @@ #ifndef _RISCV_FRONTEND_H #define _RISCV_FRONTEND_H +#include + +#ifdef __riscv64 +# define TOHOST_CMD(dev, cmd, payload) \ + (((uint64_t)(dev) << 56) | ((uint64_t)(cmd) << 48) | (uint64_t)(payload)) +#else +# define TOHOST_CMD(dev, cmd, payload) ({ \ + if ((dev) || (cmd)) __builtin_trap(); \ + (payload); }) +#endif +#define FROMHOST_DEV(fromhost_value) ((uint64_t)(fromhost_value) >> 56) +#define FROMHOST_CMD(fromhost_value) ((uint64_t)(fromhost_value) << 8 >> 56) +#define FROMHOST_DATA(fromhost_value) ((uint64_t)(fromhost_value) << 16 >> 16) + long frontend_syscall(long n, long a0, long a1, long a2, long a3, long a4, long a5, long a6); +uint64_t tohost_sync(unsigned dev, unsigned cmd, uint64_t payload); #endif -- cgit v1.1