linux-kernel - [PATCH 32/35] crypto: ccree: remove cc7x3 obsoleted AXIM configs

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:   Thu, 18 Apr 2019 16:39:07 +0300
From:   Gilad Ben-Yossef <gilad@...yossef.com>
To:     Herbert Xu <herbert@...dor.apana.org.au>,
        "David S. Miller" <davem@...emloft.net>
Cc:     Ofir Drang <ofir.drang@....com>, linux-crypto@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH 32/35] crypto: ccree: remove cc7x3 obsoleted AXIM configs

From: Ofir Drang <ofir.drang@....com>

AXIM configuration register modified in cc7x3 and no longer
includes AXI interrupt masking fields.

Signed-off-by: Ofir Drang <ofir.drang@....com>
Signed-off-by: Gilad Ben-Yossef <gilad@...yossef.com>
---
 drivers/crypto/ccree/cc_driver.c | 13 ++++++++-----
 1 file changed, 8 insertions(+), 5 deletions(-)

diff --git a/drivers/crypto/ccree/cc_driver.c b/drivers/crypto/ccree/cc_driver.c
index a28548192211..902f196d4be1 100644
--- a/drivers/crypto/ccree/cc_driver.c
+++ b/drivers/crypto/ccree/cc_driver.c
@@ -193,11 +193,14 @@ int init_cc_regs(struct cc_drvdata *drvdata, bool is_probe)
 	unsigned int val, cache_params;
 	struct device *dev = drvdata_to_dev(drvdata);
 
-	/* Unmask all AXI interrupt sources AXI_CFG1 register */
-	val = cc_ioread(drvdata, CC_REG(AXIM_CFG));
-	cc_iowrite(drvdata, CC_REG(AXIM_CFG), val & ~CC_AXI_IRQ_MASK);
-	dev_dbg(dev, "AXIM_CFG=0x%08X\n",
-		cc_ioread(drvdata, CC_REG(AXIM_CFG)));
+	/* Unmask all AXI interrupt sources AXI_CFG1 register   */
+	/* AXI interrupt config are obsoleted startign at cc7x3 */
+	if (drvdata->hw_rev <= CC_HW_REV_712) {
+		val = cc_ioread(drvdata, CC_REG(AXIM_CFG));
+		cc_iowrite(drvdata, CC_REG(AXIM_CFG), val & ~CC_AXI_IRQ_MASK);
+		dev_dbg(dev, "AXIM_CFG=0x%08X\n",
+			cc_ioread(drvdata, CC_REG(AXIM_CFG)));
+	}
 
 	/* Clear all pending interrupts */
 	val = cc_ioread(drvdata, CC_REG(HOST_IRR));
-- 
2.21.0