diff options
| -rw-r--r-- | hw/core/register.c | 8 | ||||
| -rw-r--r-- | include/hw/register.h | 6 |
2 files changed, 11 insertions, 3 deletions
diff --git a/hw/core/register.c b/hw/core/register.c index 900294b9c4..0741a1af32 100644 --- a/hw/core/register.c +++ b/hw/core/register.c @@ -159,13 +159,21 @@ uint64_t register_read(RegisterInfo *reg, uint64_t re, const char* prefix, void register_reset(RegisterInfo *reg) { + const RegisterAccessInfo *ac; + g_assert(reg); if (!reg->data || !reg->access) { return; } + ac = reg->access; + register_write_val(reg, reg->access->reset); + + if (ac->post_write) { + ac->post_write(reg, reg->access->reset); + } } void register_init(RegisterInfo *reg) diff --git a/include/hw/register.h b/include/hw/register.h index de2414e6b4..5796584588 100644 --- a/include/hw/register.h +++ b/include/hw/register.h @@ -34,7 +34,7 @@ typedef struct RegisterInfoArray RegisterInfoArray; * immediately before the actual write. The returned value is what is written, * giving the handler a chance to modify the written value. * @post_write: Post write callback. Passed the written value. Most write side - * effects should be implemented here. + * effects should be implemented here. This is called during device reset. * * @post_read: Post read callback. Passes the value that is about to be returned * for a read. The return value from this function is what is ultimately read, @@ -135,8 +135,8 @@ uint64_t register_read(RegisterInfo *reg, uint64_t re, const char* prefix, bool debug); /** - * reset a register - * @reg: register to reset + * Resets a register. This will also call the post_write hook if it exists. + * @reg: The register to reset. */ void register_reset(RegisterInfo *reg); |