From: Andy Gross <andy.gross@linaro.org>
To: linux-arm-kernel@lists.infradead.org
Cc: linux-arm-msm@vger.kernel.org, Will Deacon <will.deacon@arm.com>,
Catalin Marinas <catalin.marinas@arm.com>,
Srinivas Kandagatla <srinivas.kandagatla@linaro.org>,
Stephen Boyd <sboyd@codeaurora.org>,
stanimir.varbanov@linaro.org, linux-kernel@vger.kernel.org,
patches@linaro.org, Bjorn Andersson <bjorn.andersson@linaro.org>,
Andy Gross <andy.gross@linaro.org>
Subject: [PATCH 0/2] Qualcomm SMCCC Session ID Support
Date: Sat, 20 Aug 2016 00:51:12 -0500 [thread overview]
Message-ID: <1471672274-19317-1-git-send-email-andy.gross@linaro.org> (raw)
This set of patches fixes a problem with the recent adoption of the ARM
SMCCC in the Qualcomm SCM firmware. Qualcomm actually uses the optional
Trusted OS Session ID parameter. When SCM calls are interrupted, the
session ID field is populated with a value that must be used when the
SCM call is resumed.
The first patch extends the arm_smccc_res structure to contain the
additional a6 result field and modifies the SMCCC ASM macro to store
register 6 in the additional field. The second patch modifies the
Qualcomm SCM code to use the new result field.
Andy Gross (2):
arm64: kernel: Add SMC Session ID to results
firmware: qcom: scm: Fix interrupted SCM calls
arch/arm64/kernel/asm-offsets.c | 1 +
arch/arm64/kernel/smccc-call.S | 1 +
drivers/firmware/qcom_scm-64.c | 6 ++++--
include/linux/arm-smccc.h | 4 +++-
4 files changed, 9 insertions(+), 3 deletions(-)
--
1.9.1
next reply other threads:[~2016-08-20 5:51 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-08-20 5:51 Andy Gross [this message]
2016-08-20 5:51 ` [PATCH 1/2] arm64: kernel: Add SMC Session ID to results Andy Gross
2016-08-22 13:43 ` Will Deacon
2016-08-22 14:02 ` Andy Gross
2016-08-22 14:53 ` Will Deacon
2016-08-22 15:16 ` Andy Gross
2016-08-23 12:39 ` Andy Gross
2016-08-23 0:38 ` Stephen Boyd
2016-08-23 9:07 ` Lorenzo Pieralisi
2016-08-23 10:38 ` Lorenzo Pieralisi
2016-08-23 12:36 ` Andy Gross
2016-08-30 20:16 ` Andy Gross
2016-08-31 14:36 ` Will Deacon
2016-08-24 18:24 ` Bjorn Andersson
2016-08-20 5:51 ` [PATCH 2/2] firmware: qcom: scm: Fix interrupted SCM calls Andy Gross
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