kernel: atomics: support for 64-bit atomic operations #39531
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With this change, `atomic_t` is 32-bit for 32-bit architectures and 64-bit for 64-bit architectures. More specifically, `sizeof(atomic_t) == sizeof(long)`. Fixes zephyrproject-rtos#39530 Signed-off-by: Christopher Friedt <[email protected]>
By redefining `atomic_t` as `long`, the type is 32-bit on 32-bit architectures and 64-bit on 64-bit architectures. Signed-off-by: Christopher Friedt <[email protected]>
The print specifier for `atomic_t` should be updated to `%ld`, `%lu`, or `%lx` to account for the type change of `atomic_t` to `long`. Signed-off-by: Christopher Friedt <[email protected]>
This driver aliases a regular `int` to `atomic_t` but that should be updated to `long` with the change to `atomic_t`. Added a comment to highlight that the variable was aliased. Signed-off-by: Christopher Friedt <[email protected]>
With the change of `atomic_t` from `int` to `long` there were a few places where there was some type aliasing occuring. Update CMSIS to use `atomic_t` rather than `int` for all atomic operations. Signed-off-by: Christopher Friedt <[email protected]>
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The audio/sof Zephyr module needed print specifiers updated for the transition from `int` to `long` for `atomic_t` which supports 32-bit atomics and also 64-bit atomics. Signed-off-by: Christopher Friedt <[email protected]>
This change updates the atomic tests to validate 32-bits on 32-bit architectures and 64-bits on 64-bit architectures. Signed-off-by: Christopher Friedt <[email protected]>
Atomics changed from `int` to `long` and print format specifiers must be updated as well. Signed-off-by: Christopher Friedt <[email protected]>
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Previously, a `uint32_t` was aliased as an `atomic_t`. However, with zephyrproject-rtos#39531, `atomic_t` is now a `long` under the hood, which is 64-bit on 64-bit platforms. Fixes zephyrproject-rtos#40369 Signed-off-by: Christopher Friedt <[email protected]>
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Previously, a `uint32_t` was aliased as an `atomic_t`. However, with zephyrproject-rtos#39531, `atomic_t` is now a `long` under the hood, which is 64-bit on 64-bit platforms. Fixes zephyrproject-rtos#40369 Signed-off-by: Christopher Friedt <[email protected]>
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Previously, a `uint32_t` was aliased as an `atomic_t`. However, with #39531, `atomic_t` is now a `long` under the hood, which is 64-bit on 64-bit platforms. Fixes #40369 Signed-off-by: Christopher Friedt <[email protected]>
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Previously, a `uint32_t` was aliased as an `atomic_t`. However, with #39531, `atomic_t` is now a `long` under the hood, which is 64-bit on 64-bit platforms. Fixes #40369 Signed-off-by: Christopher Friedt <[email protected]>
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Previously, a `uint32_t` was aliased as an `atomic_t`. However, with zephyrproject-rtos#39531, `atomic_t` is now a `long` under the hood, which is 64-bit on 64-bit platforms. Fixes zephyrproject-rtos#40369 Signed-off-by: Christopher Friedt <[email protected]>
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This change adds support for 64-bit atomic operations for any machine where
sizeof(long) == 8.Fixes #39530
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