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

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>

1 files changed, 26 insertions, 0 deletions

diff --git a/include/linux/soc/apple/rtkit.h b/include/linux/soc/apple/rtkit.h
index c9cabb679cd1..fc456f75c131 100644
--- a/include/linux/soc/apple/rtkit.h
+++ b/include/linux/soc/apple/rtkit.h
@@ -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;
 };
 
 /*
@@ -78,6 +80,25 @@ struct apple_rtkit *devm_apple_rtkit_init(struct device *dev, void *cookie,
 					  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.
  */
@@ -105,6 +126,11 @@ 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.
  */
 bool apple_rtkit_is_running(struct apple_rtkit *rtk);