Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]
Groups > linux.kernel > #1531972
| From | Andy Gross <andy.gross@linaro.org> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | [PATCH 0/2] Support ARM SMCC SoC vendor quirks |
| Date | 2016-11-29 08:50 +0100 |
| Message-ID | <sILkR-5lO-5@gated-at.bofh.it> (permalink) |
| Organization | linux.* mail to news gateway |
At least one SoC vendor (Qualcomm) requires additional processing done during ARM SMCCC calls. As such, an additional parameter to the arm_smccc_smc is required to be able to handle SoC specific quirks. The Qualcomm quirk is necessary due to the fact that the scm call can be interrupted on Qualcomm ARM64 platforms. When this occurs, the call must be restarted using information that was passed back during the original smc call. The first patch in this series adds a quirk structure and also adds a quirk paramter to arm_smccc_smc calls. All of the current users of the call are modified to accomodate the new API parameter. The second patch adds the Qualcomm quirk and also implements the Qualcomm firmware changes required to handle the restarting of the interrupted SMC call. The original patch set for the SMCCC session ID is located at: https://lkml.org/lkml/2016/8/20/7 Andy Gross (2): arm: kernel: Add SMC structure parameter firmware: qcom: scm: Fix interrupted SCM calls arch/arm/kernel/smccc-call.S | 3 ++- arch/arm/mach-artpec/board-artpec6.c | 2 +- arch/arm64/kernel/asm-offsets.c | 7 +++++-- arch/arm64/kernel/smccc-call.S | 12 ++++++++++-- drivers/clk/rockchip/clk-ddr.c | 6 +++--- drivers/devfreq/rk3399_dmc.c | 6 +++--- drivers/firmware/meson/meson_sm.c | 2 +- drivers/firmware/psci.c | 2 +- drivers/firmware/qcom_scm-64.c | 13 ++++++++++--- drivers/gpu/drm/mediatek/mtk_hdmi.c | 2 +- include/linux/arm-smccc.h | 29 ++++++++++++++++++++++++----- 11 files changed, 61 insertions(+), 23 deletions(-) -- 1.9.1
Back to linux.kernel | Previous | Next — Next in thread | Find similar | Unroll thread
[PATCH 0/2] Support ARM SMCC SoC vendor quirks Andy Gross <andy.gross@linaro.org> - 2016-11-29 08:50 +0100
[PATCH 2/2] firmware: qcom: scm: Fix interrupted SCM calls Andy Gross <andy.gross@linaro.org> - 2016-11-29 08:50 +0100
Re: [PATCH 2/2] firmware: qcom: scm: Fix interrupted SCM calls Will Deacon <will.deacon@arm.com> - 2016-12-06 13:00 +0100
csiph-web