Merge tag 'tee-cleanup-for-v5.19' of https://git.linaro.org/people/jens.wiklander/linux-tee into arm/drivers

TEE cleanup

Removes the old and unused TEE_IOCTL_SHM_* flags
Removes unused the unused tee_shm_va2pa() and tee_shm_pa2va() functions

* tag 'tee-cleanup-for-v5.19' of https://git.linaro.org/people/jens.wiklander/linux-tee:
  tee: remove flags TEE_IOCTL_SHM_MAPPED and TEE_IOCTL_SHM_DMA_BUF
  tee: remove tee_shm_va2pa() and tee_shm_pa2va()

Link: https://lore.kernel.org/r/20220506070328.GA1344495@jade
Signed-off-by: Arnd Bergmann <[email protected]>

Author: arndb

drivers/tee/tee_core.c

@@ -302,7 +302,6 @@ static int tee_ioctl_shm_alloc(struct tee_context *ctx,
 		return PTR_ERR(shm);
 
 	data.id = shm->id;
-	data.flags = shm->flags;
 	data.size = shm->size;
 
 	if (copy_to_user(udata, &data, sizeof(data)))
@@ -339,7 +338,6 @@ tee_ioctl_shm_register(struct tee_context *ctx,
 		return PTR_ERR(shm);
 
 	data.id = shm->id;
-	data.flags = shm->flags;
 	data.length = shm->size;
 
 	if (copy_to_user(udata, &data, sizeof(data)))

drivers/tee/tee_shm.c

@@ -429,56 +429,6 @@ void tee_shm_free(struct tee_shm *shm)
 }
 EXPORT_SYMBOL_GPL(tee_shm_free);
 
-/**
- * tee_shm_va2pa() - Get physical address of a virtual address
- * @shm:	Shared memory handle
- * @va:		Virtual address to tranlsate
- * @pa:		Returned physical address
- * @returns 0 on success and < 0 on failure
- */
-int tee_shm_va2pa(struct tee_shm *shm, void *va, phys_addr_t *pa)
-{
-	if (!shm->kaddr)
-		return -EINVAL;
-	/* Check that we're in the range of the shm */
-	if ((char *)va < (char *)shm->kaddr)
-		return -EINVAL;
-	if ((char *)va >= ((char *)shm->kaddr + shm->size))
-		return -EINVAL;
-
-	return tee_shm_get_pa(
-			shm, (unsigned long)va - (unsigned long)shm->kaddr, pa);
-}
-EXPORT_SYMBOL_GPL(tee_shm_va2pa);
-
-/**
- * tee_shm_pa2va() - Get virtual address of a physical address
- * @shm:	Shared memory handle
- * @pa:		Physical address to tranlsate
- * @va:		Returned virtual address
- * @returns 0 on success and < 0 on failure
- */
-int tee_shm_pa2va(struct tee_shm *shm, phys_addr_t pa, void **va)
-{
-	if (!shm->kaddr)
-		return -EINVAL;
-	/* Check that we're in the range of the shm */
-	if (pa < shm->paddr)
-		return -EINVAL;
-	if (pa >= (shm->paddr + shm->size))
-		return -EINVAL;
-
-	if (va) {
-		void *v = tee_shm_get_va(shm, pa - shm->paddr);
-
-		if (IS_ERR(v))
-			return PTR_ERR(v);
-		*va = v;
-	}
-	return 0;
-}
-EXPORT_SYMBOL_GPL(tee_shm_pa2va);
-
 /**
  * tee_shm_get_va() - Get virtual address of a shared memory plus an offset
  * @shm:	Shared memory handle

include/linux/tee_drv.h

@@ -298,24 +298,6 @@ void tee_shm_free(struct tee_shm *shm);
  */
 void tee_shm_put(struct tee_shm *shm);
 
-/**
- * tee_shm_va2pa() - Get physical address of a virtual address
- * @shm:	Shared memory handle
- * @va:		Virtual address to tranlsate
- * @pa:		Returned physical address
- * @returns 0 on success and < 0 on failure
- */
-int tee_shm_va2pa(struct tee_shm *shm, void *va, phys_addr_t *pa);
-
-/**
- * tee_shm_pa2va() - Get virtual address of a physical address
- * @shm:	Shared memory handle
- * @pa:		Physical address to tranlsate
- * @va:		Returned virtual address
- * @returns 0 on success and < 0 on failure
- */
-int tee_shm_pa2va(struct tee_shm *shm, phys_addr_t pa, void **va);
-
 /**
  * tee_shm_get_va() - Get virtual address of a shared memory plus an offset
  * @shm:	Shared memory handle

include/uapi/linux/tee.h

@@ -42,10 +42,6 @@
 #define TEE_IOC_MAGIC	0xa4
 #define TEE_IOC_BASE	0
 
-/* Flags relating to shared memory */
-#define TEE_IOCTL_SHM_MAPPED	0x1	/* memory mapped in normal world */
-#define TEE_IOCTL_SHM_DMA_BUF	0x2	/* dma-buf handle on shared memory */
-
 #define TEE_MAX_ARG_SIZE	1024
 
 #define TEE_GEN_CAP_GP		(1 << 0)/* GlobalPlatform compliant TEE */