Merge tag 'v6.7-p1' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6

Pull crypto updates from Herbert Xu:
 "API:
   - Add virtual-address based lskcipher interface
   - Optimise ahash/shash performance in light of costly indirect calls
   - Remove ahash alignmask attribute

  Algorithms:
   - Improve AES/XTS performance of 6-way unrolling for ppc
   - Remove some uses of obsolete algorithms (md4, md5, sha1)
   - Add FIPS 202 SHA-3 support in pkcs1pad
   - Add fast path for single-page messages in adiantum
   - Remove zlib-deflate

  Drivers:
   - Add support for S4 in meson RNG driver
   - Add STM32MP13x support in stm32
   - Add hwrng interface support in qcom-rng
   - Add support for deflate algorithm in hisilicon/zip"

* tag 'v6.7-p1' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (283 commits)
  crypto: adiantum - flush destination page before unmapping
  crypto: testmgr - move pkcs1pad(rsa,sha3-*) to correct place
  Documentation/module-signing.txt: bring up to date
  module: enable automatic module signing with FIPS 202 SHA-3
  crypto: asymmetric_keys - allow FIPS 202 SHA-3 signatures
  crypto: rsa-pkcs1pad - Add FIPS 202 SHA-3 support
  crypto: FIPS 202 SHA-3 register in hash info for IMA
  x509: Add OIDs for FIPS 202 SHA-3 hash and signatures
  crypto: ahash - optimize performance when wrapping shash
  crypto: ahash - check for shash type instead of not ahash type
  crypto: hash - move "ahash wrapping shash" functions to ahash.c
  crypto: talitos - stop using crypto_ahash::init
  crypto: chelsio - stop using crypto_ahash::init
  crypto: ahash - improve file comment
  crypto: ahash - remove struct ahash_request_priv
  crypto: ahash - remove crypto_ahash_alignmask
  crypto: gcm - stop using alignmask of ahash
  crypto: chacha20poly1305 - stop using alignmask of ahash
  crypto: ccm - stop using alignmask of ahash
  net: ipv6: stop checking crypto_ahash_alignmask
  ...

1 files changed, 100 insertions, 22 deletions

diff --git a/drivers/crypto/ccp/psp-dev.c b/drivers/crypto/ccp/psp-dev.c
index d42d7bc62352..124a2e0c8999 100644
--- a/drivers/crypto/ccp/psp-dev.c
+++ b/drivers/crypto/ccp/psp-dev.c
@@ -9,6 +9,9 @@
 
 #include <linux/kernel.h>
 #include <linux/irqreturn.h>
+#include <linux/mutex.h>
+#include <linux/bitfield.h>
+#include <linux/delay.h>
 
 #include "sp-dev.h"
 #include "psp-dev.h"
@@ -19,6 +22,86 @@
 
 struct psp_device *psp_master;
 
+#define PSP_C2PMSG_17_CMDRESP_CMD	GENMASK(19, 16)
+
+static int psp_mailbox_poll(const void __iomem *cmdresp_reg, unsigned int *cmdresp,
+			    unsigned int timeout_msecs)
+{
+	while (true) {
+		*cmdresp = ioread32(cmdresp_reg);
+		if (FIELD_GET(PSP_CMDRESP_RESP, *cmdresp))
+			return 0;
+
+		if (!timeout_msecs--)
+			break;
+
+		usleep_range(1000, 1100);
+	}
+
+	return -ETIMEDOUT;
+}
+
+int psp_mailbox_command(struct psp_device *psp, enum psp_cmd cmd, void *cmdbuff,
+			unsigned int timeout_msecs, unsigned int *cmdresp)
+{
+	void __iomem *cmdresp_reg, *cmdbuff_lo_reg, *cmdbuff_hi_reg;
+	int ret;
+
+	if (!psp || !psp->vdata || !psp->vdata->cmdresp_reg ||
+	    !psp->vdata->cmdbuff_addr_lo_reg || !psp->vdata->cmdbuff_addr_hi_reg)
+		return -ENODEV;
+
+	cmdresp_reg    = psp->io_regs + psp->vdata->cmdresp_reg;
+	cmdbuff_lo_reg = psp->io_regs + psp->vdata->cmdbuff_addr_lo_reg;
+	cmdbuff_hi_reg = psp->io_regs + psp->vdata->cmdbuff_addr_hi_reg;
+
+	mutex_lock(&psp->mailbox_mutex);
+
+	/* Ensure mailbox is ready for a command */
+	ret = -EBUSY;
+	if (psp_mailbox_poll(cmdresp_reg, cmdresp, 0))
+		goto unlock;
+
+	if (cmdbuff) {
+		iowrite32(lower_32_bits(__psp_pa(cmdbuff)), cmdbuff_lo_reg);
+		iowrite32(upper_32_bits(__psp_pa(cmdbuff)), cmdbuff_hi_reg);
+	}
+
+	*cmdresp = FIELD_PREP(PSP_C2PMSG_17_CMDRESP_CMD, cmd);
+	iowrite32(*cmdresp, cmdresp_reg);
+
+	ret = psp_mailbox_poll(cmdresp_reg, cmdresp, timeout_msecs);
+
+unlock:
+	mutex_unlock(&psp->mailbox_mutex);
+
+	return ret;
+}
+
+int psp_extended_mailbox_cmd(struct psp_device *psp, unsigned int timeout_msecs,
+			     struct psp_ext_request *req)
+{
+	unsigned int reg;
+	int ret;
+
+	print_hex_dump_debug("->psp ", DUMP_PREFIX_OFFSET, 16, 2, req,
+			     req->header.payload_size, false);
+
+	ret = psp_mailbox_command(psp, PSP_CMD_TEE_EXTENDED_CMD, (void *)req,
+				  timeout_msecs, &reg);
+	if (ret) {
+		return ret;
+	} else if (FIELD_GET(PSP_CMDRESP_STS, reg)) {
+		req->header.status = FIELD_GET(PSP_CMDRESP_STS, reg);
+		return -EIO;
+	}
+
+	print_hex_dump_debug("<-psp ", DUMP_PREFIX_OFFSET, 16, 2, req,
+			     req->header.payload_size, false);
+
+	return 0;
+}
+
 static struct psp_device *psp_alloc_struct(struct sp_device *sp)
 {
 	struct device *dev = sp->dev;
@@ -74,7 +157,7 @@ static unsigned int psp_get_capability(struct psp_device *psp)
 	psp->capability = val;
 
 	/* Detect if TSME and SME are both enabled */
-	if (psp->capability & PSP_CAPABILITY_PSP_SECURITY_REPORTING &&
+	if (PSP_CAPABILITY(psp, PSP_SECURITY_REPORTING) &&
 	    psp->capability & (PSP_SECURITY_TSME_STATUS << PSP_CAPABILITY_PSP_SECURITY_OFFSET) &&
 	    cc_platform_has(CC_ATTR_HOST_MEM_ENCRYPT))
 		dev_notice(psp->dev, "psp: Both TSME and SME are active, SME is unnecessary when TSME is active.\n");
@@ -85,7 +168,7 @@ static unsigned int psp_get_capability(struct psp_device *psp)
 static int psp_check_sev_support(struct psp_device *psp)
 {
 	/* Check if device supports SEV feature */
-	if (!(psp->capability & PSP_CAPABILITY_SEV)) {
+	if (!PSP_CAPABILITY(psp, SEV)) {
 		dev_dbg(psp->dev, "psp does not support SEV\n");
 		return -ENODEV;
 	}
@@ -96,7 +179,7 @@ static int psp_check_sev_support(struct psp_device *psp)
 static int psp_check_tee_support(struct psp_device *psp)
 {
 	/* Check if device supports TEE feature */
-	if (!(psp->capability & PSP_CAPABILITY_TEE)) {
+	if (!PSP_CAPABILITY(psp, TEE)) {
 		dev_dbg(psp->dev, "psp does not support TEE\n");
 		return -ENODEV;
 	}
@@ -104,23 +187,6 @@ static int psp_check_tee_support(struct psp_device *psp)
 	return 0;
 }
 
-static void psp_init_platform_access(struct psp_device *psp)
-{
-	int ret;
-
-	ret = platform_access_dev_init(psp);
-	if (ret) {
-		dev_warn(psp->dev, "platform access init failed: %d\n", ret);
-		return;
-	}
-
-	/* dbc must come after platform access as it tests the feature */
-	ret = dbc_dev_init(psp);
-	if (ret)
-		dev_warn(psp->dev, "failed to init dynamic boost control: %d\n",
-			 ret);
-}
-
 static int psp_init(struct psp_device *psp)
 {
 	int ret;
@@ -137,8 +203,19 @@ static int psp_init(struct psp_device *psp)
 			return ret;
 	}
 
-	if (psp->vdata->platform_access)
-		psp_init_platform_access(psp);
+	if (psp->vdata->platform_access) {
+		ret = platform_access_dev_init(psp);
+		if (ret)
+			return ret;
+	}
+
+	/* dbc must come after platform access as it tests the feature */
+	if (PSP_FEATURE(psp, DBC) ||
+	    PSP_CAPABILITY(psp, DBC_THRU_EXT)) {
+		ret = dbc_dev_init(psp);
+		if (ret)
+			return ret;
+	}
 
 	return 0;
 }
@@ -164,6 +241,7 @@ int psp_dev_init(struct sp_device *sp)
 	}
 
 	psp->io_regs = sp->io_map;
+	mutex_init(&psp->mailbox_mutex);
 
 	ret = psp_get_capability(psp);
 	if (ret)