diff options
Diffstat (limited to 'protocol.c')
| -rw-r--r-- | protocol.c | 57 |
1 files changed, 57 insertions, 0 deletions
@@ -130,6 +130,45 @@ int protocol_v1_create_window(struct mbox_context *context, return 0; } +int protocol_v1_mark_dirty(struct mbox_context *context, + struct protocol_mark_dirty *io) +{ + uint32_t offset = io->req.v1.offset; + uint32_t size = io->req.v1.size; + uint32_t off; + + if (!(context->current && context->current_is_write)) { + MSG_ERR("Tried to call mark dirty without open write window\n"); + return -EPERM; + } + + /* For V1 offset given relative to flash - we want the window */ + off = offset - ((context->current->flash_offset) >> + context->block_size_shift); + if (off > offset) { /* Underflow - before current window */ + MSG_ERR("Tried to mark dirty before start of window\n"); + MSG_ERR("requested offset: 0x%x window start: 0x%x\n", + offset << context->block_size_shift, + context->current->flash_offset); + return -EINVAL; + } + offset = off; + /* + * We only track dirty at the block level. + * For protocol V1 we can get away with just marking the whole + * block dirty. + */ + size = align_up(size, 1 << context->block_size_shift); + size >>= context->block_size_shift; + + MSG_INFO("Dirty window @ 0x%.8x for 0x%.8x\n", + offset << context->block_size_shift, + size << context->block_size_shift); + + return window_set_bytemap(context, context->current, offset, size, + WINDOW_DIRTY); +} + /* * get_suggested_timeout() - get the suggested timeout value in seconds * @context: The mbox context pointer @@ -210,11 +249,28 @@ int protocol_v2_create_window(struct mbox_context *context, return 0; } +int protocol_v2_mark_dirty(struct mbox_context *context, + struct protocol_mark_dirty *io) +{ + if (!(context->current && context->current_is_write)) { + MSG_ERR("Tried to call mark dirty without open write window\n"); + return -EPERM; + } + + MSG_INFO("Dirty window @ 0x%.8x for 0x%.8x\n", + io->req.v2.offset << context->block_size_shift, + io->req.v2.size << context->block_size_shift); + + return window_set_bytemap(context, context->current, io->req.v2.offset, + io->req.v2.size, WINDOW_DIRTY); +} + static const struct protocol_ops protocol_ops_v1 = { .reset = protocol_v1_reset, .get_info = protocol_v1_get_info, .get_flash_info = protocol_v1_get_flash_info, .create_window = protocol_v1_create_window, + .mark_dirty = protocol_v1_mark_dirty, }; static const struct protocol_ops protocol_ops_v2 = { @@ -222,6 +278,7 @@ static const struct protocol_ops protocol_ops_v2 = { .get_info = protocol_v2_get_info, .get_flash_info = protocol_v2_get_flash_info, .create_window = protocol_v2_create_window, + .mark_dirty = protocol_v2_mark_dirty, }; static const struct protocol_ops *protocol_ops_map[] = { |
