linux-kernel - [PATCH 2/6] crypto: ccp: Add a header for multiple drivers to use `__psp

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Date:   Thu, 9 Feb 2023 16:38:04 -0600
From:   Mario Limonciello <mario.limonciello@....com>
To:     Jan Dąbroś <jsd@...ihalf.com>,
        Grzegorz Bernacki <gjb@...ihalf.com>,
        Thomas Rijo-john <Rijo-john.Thomas@....com>,
        "Lendacky Thomas" <Thomas.Lendacky@....com>,
        <herbert@...dor.apana.org.au>,
        "Sean Christopherson" <seanjc@...gle.com>,
        Paolo Bonzini <pbonzini@...hat.com>,
        Brijesh Singh <brijesh.singh@....com>,
        Tom Lendacky <thomas.lendacky@....com>,
        John Allen <john.allen@....com>,
        Jarkko Nikula <jarkko.nikula@...ux.intel.com>,
        Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        Mika Westerberg <mika.westerberg@...ux.intel.com>
CC:     <linux-i2c@...r.kernel.org>, <linux-crypto@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>,
        Mario Limonciello <mario.limonciello@....com>,
        Thomas Gleixner <tglx@...utronix.de>,
        "Ingo Molnar" <mingo@...hat.com>, Borislav Petkov <bp@...en8.de>,
        Dave Hansen <dave.hansen@...ux.intel.com>, <x86@...nel.org>,
        "H. Peter Anvin" <hpa@...or.com>,
        "David S. Miller" <davem@...emloft.net>,
        Jens Wiklander <jens.wiklander@...aro.org>,
        Sumit Garg <sumit.garg@...aro.org>, <kvm@...r.kernel.org>,
        <op-tee@...ts.trustedfirmware.org>
Subject: [PATCH 2/6] crypto: ccp: Add a header for multiple drivers to use `__psp_pa`

The TEE subdriver for CCP, the amdtee driver and the i2c-designware-amdpsp
drivers all include `psp-sev.h` even though they don't use SEV
functionality.

Move the definition of `__psp_pa` into a common header to be included
by all of these drivers.

Signed-off-by: Mario Limonciello <mario.limonciello@....com>
---
 arch/x86/kvm/svm/sev.c                     |  1 +
 drivers/crypto/ccp/sev-dev.c               |  1 +
 drivers/crypto/ccp/tee-dev.c               |  2 +-
 drivers/i2c/busses/i2c-designware-amdpsp.c |  2 +-
 drivers/tee/amdtee/call.c                  |  2 +-
 drivers/tee/amdtee/shm_pool.c              |  2 +-
 include/linux/psp-sev.h                    |  8 --------
 include/linux/psp.h                        | 14 ++++++++++++++
 8 files changed, 20 insertions(+), 12 deletions(-)
 create mode 100644 include/linux/psp.h

diff --git a/arch/x86/kvm/svm/sev.c b/arch/x86/kvm/svm/sev.c
index 86d6897f48068..ee8e9053f4468 100644
--- a/arch/x86/kvm/svm/sev.c
+++ b/arch/x86/kvm/svm/sev.c
@@ -11,6 +11,7 @@
 #include <linux/kvm_host.h>
 #include <linux/kernel.h>
 #include <linux/highmem.h>
+#include <linux/psp.h>
 #include <linux/psp-sev.h>
 #include <linux/pagemap.h>
 #include <linux/swap.h>
diff --git a/drivers/crypto/ccp/sev-dev.c b/drivers/crypto/ccp/sev-dev.c
index e2f25926eb514..28945ca7c8563 100644
--- a/drivers/crypto/ccp/sev-dev.c
+++ b/drivers/crypto/ccp/sev-dev.c
@@ -24,6 +24,7 @@
 #include <linux/cpufeature.h>
 #include <linux/fs.h>
 #include <linux/fs_struct.h>
+#include <linux/psp.h>
 
 #include <asm/smp.h>
 #include <asm/cacheflush.h>
diff --git a/drivers/crypto/ccp/tee-dev.c b/drivers/crypto/ccp/tee-dev.c
index 5c9d47f3be375..f24fc953718a0 100644
--- a/drivers/crypto/ccp/tee-dev.c
+++ b/drivers/crypto/ccp/tee-dev.c
@@ -13,7 +13,7 @@
 #include <linux/delay.h>
 #include <linux/slab.h>
 #include <linux/gfp.h>
-#include <linux/psp-sev.h>
+#include <linux/psp.h>
 #include <linux/psp-tee.h>
 
 #include "psp-dev.h"
diff --git a/drivers/i2c/busses/i2c-designware-amdpsp.c b/drivers/i2c/busses/i2c-designware-amdpsp.c
index 8f36167bce624..80f28a1bbbef6 100644
--- a/drivers/i2c/busses/i2c-designware-amdpsp.c
+++ b/drivers/i2c/busses/i2c-designware-amdpsp.c
@@ -4,7 +4,7 @@
 #include <linux/bits.h>
 #include <linux/i2c.h>
 #include <linux/io-64-nonatomic-lo-hi.h>
-#include <linux/psp-sev.h>
+#include <linux/psp.h>
 #include <linux/types.h>
 #include <linux/workqueue.h>
 
diff --git a/drivers/tee/amdtee/call.c b/drivers/tee/amdtee/call.c
index cec6e70f0ac92..e8cd9aaa34675 100644
--- a/drivers/tee/amdtee/call.c
+++ b/drivers/tee/amdtee/call.c
@@ -8,7 +8,7 @@
 #include <linux/tee_drv.h>
 #include <linux/psp-tee.h>
 #include <linux/slab.h>
-#include <linux/psp-sev.h>
+#include <linux/psp.h>
 #include "amdtee_if.h"
 #include "amdtee_private.h"
 
diff --git a/drivers/tee/amdtee/shm_pool.c b/drivers/tee/amdtee/shm_pool.c
index f87f96a291c99..f0303126f199d 100644
--- a/drivers/tee/amdtee/shm_pool.c
+++ b/drivers/tee/amdtee/shm_pool.c
@@ -5,7 +5,7 @@
 
 #include <linux/slab.h>
 #include <linux/tee_drv.h>
-#include <linux/psp-sev.h>
+#include <linux/psp.h>
 #include "amdtee_private.h"
 
 static int pool_op_alloc(struct tee_shm_pool *pool, struct tee_shm *shm,
diff --git a/include/linux/psp-sev.h b/include/linux/psp-sev.h
index 1595088c428b4..7fd17e82bab43 100644
--- a/include/linux/psp-sev.h
+++ b/include/linux/psp-sev.h
@@ -14,14 +14,6 @@
 
 #include <uapi/linux/psp-sev.h>
 
-#ifdef CONFIG_X86
-#include <linux/mem_encrypt.h>
-
-#define __psp_pa(x)	__sme_pa(x)
-#else
-#define __psp_pa(x)	__pa(x)
-#endif
-
 #define SEV_FW_BLOB_MAX_SIZE	0x4000	/* 16KB */
 
 /**
diff --git a/include/linux/psp.h b/include/linux/psp.h
new file mode 100644
index 0000000000000..202162487ec3b
--- /dev/null
+++ b/include/linux/psp.h
@@ -0,0 +1,14 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#ifndef __PSP_H
+#define __PSP_H
+
+#ifdef CONFIG_X86
+#include <linux/mem_encrypt.h>
+
+#define __psp_pa(x)	__sme_pa(x)
+#else
+#define __psp_pa(x)	__pa(x)
+#endif
+
+#endif /* __PSP_H */
-- 
2.34.1