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system/physmem: Propagate AddressSpace to MapClient helpers

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Propagate AddressSpace handler to following helpers:
- register_map_client()
- unregister_map_client()
- notify_map_clients[_locked]()

Rename them using 'address_space_' prefix instead of 'cpu_'.

The AddressSpace argument will be used in the next commit.

Reviewed-by: Peter Xu <peterx@redhat.com>
Tested-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Mattias Nissler <mnissler@rivosinc.com>
Message-ID: <20240507094210.300566-2-mnissler@rivosinc.com>
[PMD: Split patch, part 1/2]
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
This commit is contained in:
Mattias Nissler 2023-09-07 06:04:23 -07:00 • committed by Philippe Mathieu-Daudé
parent d5e268197a
commit 5c62719710
4 changed files with 38 additions and 18 deletions
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26
include/exec/memory.h
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@ -2946,8 +2946,8 @@ bool address_space_access_valid(AddressSpace *as, hwaddr addr, hwaddr len,
* May return %NULL and set *@plen to zero(0), if resources needed to perform
* the mapping are exhausted.
* Use only for reads OR writes - not for read-modify-write operations.
* Use cpu_register_map_client() to know when retrying the map operation is
* likely to succeed.
* Use address_space_register_map_client() to know when retrying the map
* operation is likely to succeed.
*
* @as: #AddressSpace to be accessed
* @addr: address within that address space
@ -2972,6 +2972,28 @@ void *address_space_map(AddressSpace *as, hwaddr addr,
void address_space_unmap(AddressSpace *as, void *buffer, hwaddr len,
bool is_write, hwaddr access_len);
/*
* address_space_register_map_client: Register a callback to invoke when
* resources for address_space_map() are available again.
*
* address_space_map may fail when there are not enough resources available,
* such as when bounce buffer memory would exceed the limit. The callback can
* be used to retry the address_space_map operation. Note that the callback
* gets automatically removed after firing.
*
* @as: #AddressSpace to be accessed
* @bh: callback to invoke when address_space_map() retry is appropriate
*/
void address_space_register_map_client(AddressSpace *as, QEMUBH *bh);
/*
* address_space_unregister_map_client: Unregister a callback that has
* previously been registered and not fired yet.
*
* @as: #AddressSpace to be accessed
* @bh: callback to unregister
*/
void address_space_unregister_map_client(AddressSpace *as, QEMUBH *bh);
/* Internal functions, part of the implementation of address_space_read. */
MemTxResult address_space_read_full(AddressSpace *as, hwaddr addr,