From: Varun Wadekar <vwadekar@nvidia.com>
Date: Wed, 8 Nov 2017 22:03:16 +0000 (-0800)
Subject: Tegra: smmu: change exit criteria for context size calculation
X-Git-Url: http://git.openwrt.org/%22https:/collectd.org//%22/%22https:/collectd.org/%22?a=commitdiff_plain;h=2ad1bddca9272d622696d882c9439aaa06e359ff;p=project%2Fbcm63xx%2Fatf.git

Tegra: smmu: change exit criteria for context size calculation

Tegra SoCs currently do not have a SMMU register at address 0xFFFFFFFF.
This patch changes the search criteria, to look for this marker, to
calculate the size of the saved context.

Change-Id: I15d91945ecb78267f91c45f37985dbb2327ca3ae
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
---

diff --git a/plat/nvidia/tegra/common/drivers/smmu/smmu.c b/plat/nvidia/tegra/common/drivers/smmu/smmu.c
index 333d7d16..8c1b899f 100644
--- a/plat/nvidia/tegra/common/drivers/smmu/smmu.c
+++ b/plat/nvidia/tegra/common/drivers/smmu/smmu.c
@@ -101,12 +101,13 @@ void tegra_smmu_save_context(uint64_t smmu_ctx_addr)
 	 * the last entry. Sanity check the table size before we start with
 	 * the context save operation.
 	 */
-	while (smmu_ctx_regs[num_entries].val != 0xFFFFFFFFU) {
+	while ((smmu_ctx_regs[num_entries].reg != 0xFFFFFFFFU)) {
 		num_entries++;
 	}
 
 	/* panic if the sizes do not match */
 	if (num_entries != smmu_ctx_regs[0].val) {
+		ERROR("SMMU context size mismatch!");
 		panic();
 	}