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Merge tag 'asahi-soc-rtkit-pmgr-6.3' of https://github.com/AsahiLinux/linux into soc/drivers

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Apple SoC RTKit/PMGR updates for 6.3.

This time around we have a PMGR change to allow IRQ-safe usage, RTKit
crash register dump decoding, and a bunch of RTKit API changes used by
upcoming drivers.

* tag 'asahi-soc-rtkit-pmgr-6.3' of https://github.com/AsahiLinux/linux:
  soc: apple: rtkit: Add register dump decoding to crashlog
  soc: apple: rtkit: Export non-devm init/free functions
  soc: apple: rtkit: Add a private pointer to apple_rtkit_shmem
  soc: apple: apple-pmgr-pwrstate: Switch to IRQ-safe mode
  soc: apple: rtkit: Add apple_rtkit_idle() function

Link: https://lore.kernel.org/r/4790bdc4-b6e2-228b-771f-023363f65fb3@marcan.st
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
This commit is contained in:
Arnd Bergmann
2023-02-06 12:02:59 +01:00
parent e26f8413cc 22991d8d57
commit 7d47f6ffa5
4 changed files with 157 additions and 9 deletions
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26
include/linux/soc/apple/rtkit.h
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@@ -22,6 +22,7 @@
* @size: Size of the shared memory buffer.
* @iova: Device VA of shared memory buffer.
* @is_mapped: Shared memory buffer is managed by the co-processor.
* @private: Private data pointer for the parent driver.
*/
struct apple_rtkit_shmem {
@@ -30,6 +31,7 @@ struct apple_rtkit_shmem {
size_t size;
dma_addr_t iova;
bool is_mapped;
void *private;
};
/*
@@ -77,6 +79,25 @@ struct apple_rtkit *devm_apple_rtkit_init(struct device *dev, void *cookie,
const char *mbox_name, int mbox_idx,
const struct apple_rtkit_ops *ops);
/*
* Non-devm version of devm_apple_rtkit_init. Must be freed with
* apple_rtkit_free.
*
* @dev: Pointer to the device node this coprocessor is assocated with
* @cookie: opaque cookie passed to all functions defined in rtkit_ops
* @mbox_name: mailbox name used to communicate with the co-processor
* @mbox_idx: mailbox index to be used if mbox_name is NULL
* @ops: pointer to rtkit_ops to be used for this co-processor
*/
struct apple_rtkit *apple_rtkit_init(struct device *dev, void *cookie,
const char *mbox_name, int mbox_idx,
const struct apple_rtkit_ops *ops);
/*
* Free an instance of apple_rtkit.
*/
void apple_rtkit_free(struct apple_rtkit *rtk);
/*
* Reinitialize internal structures. Must only be called with the co-processor
* is held in reset.
@@ -104,6 +125,11 @@ int apple_rtkit_wake(struct apple_rtkit *rtk);
*/
int apple_rtkit_shutdown(struct apple_rtkit *rtk);
/*
* Put the co-processor into idle mode
*/
int apple_rtkit_idle(struct apple_rtkit *rtk);
/*
* Checks if RTKit is running and ready to handle messages.
*/