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Commit 4b638df4 authored by Bjorn Andersson's avatar Bjorn Andersson Committed by Andy Gross
Browse files

soc: qcom: Add Shared Memory Manager driver 



The Shared Memory Manager driver implements an interface for allocating
and accessing items in the memory area shared among all of the
processors in a Qualcomm platform.

Signed-off-by: default avatarBjorn Andersson <bjorn.andersson@sonymobile.com>
Acked-by: default avatarAndy Gross <agross@codeaurora.org>
Signed-off-by: default avatarAndy Gross <agross@codeaurora.org>
parent d770e558

drivers/soc/qcom/Kconfig

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@@ -17,3 +17,11 @@ config QCOM_PM 
	  QCOM Platform specific power driver to manage cores and L2 low power

	  modes. It interface with various system drivers to put the cores in

	  low power modes.



config QCOM_SMEM

	tristate "Qualcomm Shared Memory Manager (SMEM)"

	depends on ARCH_QCOM

	help

	  Say y here to enable support for the Qualcomm Shared Memory Manager.

	  The driver provides an interface to items in a heap shared among all

	  processors in a Qualcomm platform.

drivers/soc/qcom/Makefile

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obj-$(CONFIG_QCOM_GSBI)	+=	qcom_gsbi.o

obj-$(CONFIG_QCOM_PM)	+=	spm.o

obj-$(CONFIG_QCOM_SMEM) +=	smem.o

drivers/soc/qcom/smem.c

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File added.

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include/linux/soc/qcom/smem.h

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#ifndef __QCOM_SMEM_H__

#define __QCOM_SMEM_H__



#define QCOM_SMEM_HOST_ANY -1



int qcom_smem_alloc(unsigned host, unsigned item, size_t size);

int qcom_smem_get(unsigned host, unsigned item, void **ptr, size_t *size);



int qcom_smem_get_free_space(unsigned host);



#endif