Commit 853735e4 authored Nov 13, 2020 by Rui Miguel Silva Committed by Jens Wiklander Nov 25, 2020

optee: add writeback to valid memory type



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: cdbcf83d ("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>

parent 3cea11cd

drivers/tee/optee/call.c

+2 −1

Original line number	Diff line number	Diff line
		@@ -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

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