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Commit 720419f0 authored by Brijesh Singh's avatar Brijesh Singh Committed by Herbert Xu
Browse files

crypto: ccp - Introduce the AMD Secure Processor device 



The CCP device is part of the AMD Secure Processor. In order to expand
the usage of the AMD Secure Processor, create a framework that allows
functional components of the AMD Secure Processor to be initialized and
handled appropriately.

Signed-off-by: default avatarBrijesh Singh <brijesh.singh@amd.com>
Acked-by: default avatarGary R Hook <gary.hook@amd.com>
Signed-off-by: default avatarHerbert Xu <herbert@gondor.apana.org.au>
parent 970e8303

drivers/crypto/Kconfig

+3 −3
Original line number Diff line number Diff line
@@ -540,11 +540,11 @@ config CRYPTO_DEV_ATMEL_ECC 
	  will be called atmel-ecc.



config CRYPTO_DEV_CCP

	bool "Support for AMD Cryptographic Coprocessor"

	bool "Support for AMD Secure Processor"

	depends on ((X86 && PCI) || (ARM64 && (OF_ADDRESS || ACPI))) && HAS_IOMEM

	help

	  The AMD Cryptographic Coprocessor provides hardware offload support

	  for encryption, hashing and related operations.

	  The AMD Secure Processor provides support for the Cryptographic Coprocessor

	  (CCP) and the Platform Security Processor (PSP) devices.



if CRYPTO_DEV_CCP

	source "drivers/crypto/ccp/Kconfig"

drivers/crypto/ccp/Kconfig

+14 −7
Original line number Diff line number Diff line 
config CRYPTO_DEV_CCP_DD

	tristate "Cryptographic Coprocessor device driver"

	depends on CRYPTO_DEV_CCP

	tristate "Secure Processor device driver"

	default m

	help

	  Provides AMD Secure Processor device driver.

	  If you choose 'M' here, this module will be called ccp.



config CRYPTO_DEV_SP_CCP

	bool "Cryptographic Coprocessor device"

	default y

	depends on CRYPTO_DEV_CCP_DD

	select HW_RANDOM

	select DMA_ENGINE

	select DMADEVICES

	select CRYPTO_SHA1

	select CRYPTO_SHA256

	help

	  Provides the interface to use the AMD Cryptographic Coprocessor

	  which can be used to offload encryption operations such as SHA,

	  AES and more. If you choose 'M' here, this module will be called

	  ccp.

	  Provides the support for AMD Cryptographic Coprocessor (CCP) device

	  which can be used to offload encryption operations such as SHA, AES

	  and more.



config CRYPTO_DEV_CCP_CRYPTO

	tristate "Encryption and hashing offload support"

	depends on CRYPTO_DEV_CCP_DD

	default m

	depends on CRYPTO_DEV_CCP_DD

	depends on CRYPTO_DEV_SP_CCP

	select CRYPTO_HASH

	select CRYPTO_BLKCIPHER

	select CRYPTO_AUTHENC

drivers/crypto/ccp/Makefile

+2 −2
Original line number Diff line number Diff line 
obj-$(CONFIG_CRYPTO_DEV_CCP_DD) += ccp.o

ccp-objs := ccp-dev.o \

ccp-objs  := sp-dev.o ccp-platform.o

ccp-$(CONFIG_CRYPTO_DEV_SP_CCP) += ccp-dev.o \

	    ccp-ops.o \

	    ccp-dev-v3.o \

	    ccp-dev-v5.o \

	    ccp-platform.o \

	    ccp-dmaengine.o \

	    ccp-debugfs.o

ccp-$(CONFIG_PCI) += ccp-pci.o

drivers/crypto/ccp/ccp-dev-v3.c

+1 −3
Original line number Diff line number Diff line
@@ -359,8 +359,7 @@ static void ccp_irq_bh(unsigned long data) 


static irqreturn_t ccp_irq_handler(int irq, void *data)

{

	struct device *dev = data;

	struct ccp_device *ccp = dev_get_drvdata(dev);

	struct ccp_device *ccp = (struct ccp_device *)data;



	ccp_disable_queue_interrupts(ccp);

	if (ccp->use_tasklet)
@@ -597,6 +596,5 @@ const struct ccp_vdata ccpv3 = { 
	.version = CCP_VERSION(3, 0),

	.setup = NULL,

	.perform = &ccp3_actions,

	.bar = 2,

	.offset = 0x20000,

};

drivers/crypto/ccp/ccp-dev-v5.c

+1 −4
Original line number Diff line number Diff line
@@ -769,8 +769,7 @@ static void ccp5_irq_bh(unsigned long data) 


static irqreturn_t ccp5_irq_handler(int irq, void *data)

{

	struct device *dev = data;

	struct ccp_device *ccp = dev_get_drvdata(dev);

	struct ccp_device *ccp = (struct ccp_device *)data;



	ccp5_disable_queue_interrupts(ccp);

	ccp->total_interrupts++;
@@ -1113,7 +1112,6 @@ const struct ccp_vdata ccpv5a = { 
	.version = CCP_VERSION(5, 0),

	.setup = ccp5_config,

	.perform = &ccp5_actions,

	.bar = 2,

	.offset = 0x0,

};
@@ -1122,6 +1120,5 @@ const struct ccp_vdata ccpv5b = { 
	.dma_chan_attr = DMA_PRIVATE,

	.setup = ccp5other_config,

	.perform = &ccp5_actions,

	.bar = 2,

	.offset = 0x0,

};