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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-08-07 13:18:06 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-08-07 13:18:06 +0000 |
commit | 638a9e433ecd61e64761352dbec1fa4f5874c941 (patch) | |
tree | fdbff74a238d7a5a7d1cef071b7230bc064b9f25 /drivers/tee/optee/core.c | |
parent | Releasing progress-linux version 6.9.12-1~progress7.99u1. (diff) | |
download | linux-638a9e433ecd61e64761352dbec1fa4f5874c941.tar.xz linux-638a9e433ecd61e64761352dbec1fa4f5874c941.zip |
Merging upstream version 6.10.3.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'drivers/tee/optee/core.c')
-rw-r--r-- | drivers/tee/optee/core.c | 66 |
1 files changed, 1 insertions, 65 deletions
diff --git a/drivers/tee/optee/core.c b/drivers/tee/optee/core.c index 3aed554bc8..39e688d4e9 100644 --- a/drivers/tee/optee/core.c +++ b/drivers/tee/optee/core.c @@ -9,77 +9,13 @@ #include <linux/crash_dump.h> #include <linux/errno.h> #include <linux/io.h> -#include <linux/mm.h> #include <linux/module.h> #include <linux/slab.h> #include <linux/string.h> -#include <linux/tee_drv.h> +#include <linux/tee_core.h> #include <linux/types.h> #include "optee_private.h" -int optee_pool_op_alloc_helper(struct tee_shm_pool *pool, struct tee_shm *shm, - size_t size, size_t align, - int (*shm_register)(struct tee_context *ctx, - struct tee_shm *shm, - struct page **pages, - size_t num_pages, - unsigned long start)) -{ - size_t nr_pages = roundup(size, PAGE_SIZE) / PAGE_SIZE; - struct page **pages; - unsigned int i; - int rc = 0; - - /* - * Ignore alignment since this is already going to be page aligned - * and there's no need for any larger alignment. - */ - shm->kaddr = alloc_pages_exact(nr_pages * PAGE_SIZE, - GFP_KERNEL | __GFP_ZERO); - if (!shm->kaddr) - return -ENOMEM; - - shm->paddr = virt_to_phys(shm->kaddr); - shm->size = nr_pages * PAGE_SIZE; - - pages = kcalloc(nr_pages, sizeof(*pages), GFP_KERNEL); - if (!pages) { - rc = -ENOMEM; - goto err; - } - - for (i = 0; i < nr_pages; i++) - pages[i] = virt_to_page((u8 *)shm->kaddr + i * PAGE_SIZE); - - shm->pages = pages; - shm->num_pages = nr_pages; - - if (shm_register) { - rc = shm_register(shm->ctx, shm, pages, nr_pages, - (unsigned long)shm->kaddr); - if (rc) - goto err; - } - - return 0; -err: - free_pages_exact(shm->kaddr, shm->size); - shm->kaddr = NULL; - return rc; -} - -void optee_pool_op_free_helper(struct tee_shm_pool *pool, struct tee_shm *shm, - int (*shm_unregister)(struct tee_context *ctx, - struct tee_shm *shm)) -{ - if (shm_unregister) - shm_unregister(shm->ctx, shm); - free_pages_exact(shm->kaddr, shm->size); - shm->kaddr = NULL; - kfree(shm->pages); - shm->pages = NULL; -} - static void optee_bus_scan(struct work_struct *work) { WARN_ON(optee_enumerate_devices(PTA_CMD_GET_DEVICES_SUPP)); |