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optee: add writeback to valid memory type

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Only in smp systems the cache policy is setup as write alloc, in
single cpu systems the cache policy is set as writeback and it is
normal memory, so, it should pass the is_normal_memory check in the
share memory registration.

Add the right condition to make it work in no smp systems.

Fixes: cdbcf83d29 ("tee: optee: check type of registered shared memory")
Signed-off-by: Rui Miguel Silva <rui.silva@linaro.org>
Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>
This commit is contained in:
Rui Miguel Silva 2020-11-13 15:06:04 +00:00 committed by Jens Wiklander
parent 3cea11cd5e
commit 853735e404
1 changed files with 2 additions and 1 deletions
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3
drivers/tee/optee/call.c
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@ -534,7 +534,8 @@ void optee_free_pages_list(void *list, size_t num_entries)
static bool is_normal_memory(pgprot_t p)
{
#if defined(CONFIG_ARM)
return (pgprot_val(p) & L_PTE_MT_MASK) == L_PTE_MT_WRITEALLOC;
return (((pgprot_val(p) & L_PTE_MT_MASK) == L_PTE_MT_WRITEALLOC) ||
((pgprot_val(p) & L_PTE_MT_MASK) == L_PTE_MT_WRITEBACK));
#elif defined(CONFIG_ARM64)
return (pgprot_val(p) & PTE_ATTRINDX_MASK) == PTE_ATTRINDX(MT_NORMAL);
#else