From 6668ed271eaefaa63e686bdfbedaeb7b8e492722 Mon Sep 17 00:00:00 2001 From: Kumar Kartikeya Dwivedi Date: Fri, 4 Sep 2026 10:43:19 +0200 Subject: selftests/bpf: Reject graph kptr use after RCU unlock Add a sleepable verifier test that loads a graph-node local kptr in an explicit RCU read-side critical section, then passes its node to bpf_rbtree_remove() after the section ends. Before the verifier fix, the stale NON_OWN_REF flag makes the node look like a live borrowed reference and the program is accepted. After the fix, the pointer is demoted without NON_OWN_REF and the graph kfunc argument is rejected. Also exercise a graph kptr loaded while a spin lock provides implicit RCU protection. The pointer must be invalidated when the lock is released, which guards the required ordering between non-owning-reference invalidation and RCU demotion. Update the existing fault-protected load test state description. The post-unlock pointer no longer carries NON_OWN_REF, but remains readable because the load is rewritten to use BPF_PROBE_MEM. Signed-off-by: Kumar Kartikeya Dwivedi Link: https://lore.kernel.org/r/20260904084325.52250-7-memxor@gmail.com Signed-off-by: Alexei Starovoitov --- drivers/clk/meson/Kconfig | 232 ++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 232 insertions(+) create mode 100644 drivers/clk/meson/Kconfig (limited to 'drivers/clk/meson/Kconfig') diff --git a/drivers/clk/meson/Kconfig b/drivers/clk/meson/Kconfig new file mode 100644 index 000000000..cf8cf3f9e --- /dev/null +++ b/drivers/clk/meson/Kconfig @@ -0,0 +1,232 @@ +# SPDX-License-Identifier: GPL-2.0-only +menu "Clock support for Amlogic platforms" + depends on ARCH_MESON || COMPILE_TEST + +config COMMON_CLK_MESON_REGMAP + tristate + select REGMAP + select MFD_SYSCON + +config COMMON_CLK_MESON_DUALDIV + tristate + select COMMON_CLK_MESON_REGMAP + +config COMMON_CLK_MESON_MPLL + tristate + select COMMON_CLK_MESON_REGMAP + +config COMMON_CLK_MESON_PHASE + tristate + select COMMON_CLK_MESON_REGMAP + +config COMMON_CLK_MESON_PLL + tristate + select COMMON_CLK_MESON_REGMAP + +config COMMON_CLK_MESON_SCLK_DIV + tristate + select COMMON_CLK_MESON_REGMAP + +config COMMON_CLK_MESON_VID_PLL_DIV + tristate + select COMMON_CLK_MESON_REGMAP + +config COMMON_CLK_MESON_VCLK + tristate + select COMMON_CLK_MESON_REGMAP + +config COMMON_CLK_MESON_CLKC_UTILS + select REGMAP + select MFD_SYSCON + tristate + +config COMMON_CLK_MESON_AO_CLKC + tristate + select COMMON_CLK_MESON_REGMAP + select COMMON_CLK_MESON_CLKC_UTILS + select RESET_CONTROLLER + +config COMMON_CLK_MESON_CPU_DYNDIV + tristate + select COMMON_CLK_MESON_REGMAP + +config COMMON_CLK_MESON8B + bool "Meson8 SoC Clock controller support" + depends on ARM + default ARCH_MESON + select COMMON_CLK_MESON_REGMAP + select COMMON_CLK_MESON_CLKC_UTILS + select COMMON_CLK_MESON_MPLL + select COMMON_CLK_MESON_PLL + select MFD_SYSCON + select RESET_CONTROLLER + help + Support for the clock controller on AmLogic S802 (Meson8), + S805 (Meson8b) and S812 (Meson8m2) devices. Say Y if you + want peripherals and CPU frequency scaling to work. + +config COMMON_CLK_GXBB + tristate "GXBB and GXL SoC clock controllers support" + depends on ARM64 + default ARCH_MESON + select COMMON_CLK_MESON_REGMAP + select COMMON_CLK_MESON_CLKC_UTILS + select COMMON_CLK_MESON_DUALDIV + select COMMON_CLK_MESON_VID_PLL_DIV + select COMMON_CLK_MESON_MPLL + select COMMON_CLK_MESON_PLL + select COMMON_CLK_MESON_AO_CLKC + select MFD_SYSCON + help + Support for the clock controller on AmLogic S905 devices, aka gxbb. + Say Y if you want peripherals and CPU frequency scaling to work. + +config COMMON_CLK_AXG + tristate "AXG SoC clock controllers support" + depends on ARM64 + default ARCH_MESON + select COMMON_CLK_MESON_REGMAP + select COMMON_CLK_MESON_CLKC_UTILS + select COMMON_CLK_MESON_DUALDIV + select COMMON_CLK_MESON_MPLL + select COMMON_CLK_MESON_PLL + select COMMON_CLK_MESON_AO_CLKC + select MFD_SYSCON + help + Support for the clock controller on AmLogic A113D devices, aka axg. + Say Y if you want peripherals and CPU frequency scaling to work. + +config COMMON_CLK_AXG_AUDIO + tristate "Meson AXG Audio Clock Controller Driver" + depends on ARM64 + select COMMON_CLK_MESON_REGMAP + select COMMON_CLK_MESON_PHASE + select COMMON_CLK_MESON_SCLK_DIV + select COMMON_CLK_MESON_CLKC_UTILS + select REGMAP_MMIO + select AUXILIARY_BUS + imply RESET_MESON_AUX + help + Support for the audio clock controller on AmLogic A113D devices, + aka axg, Say Y if you want audio subsystem to work. + +config COMMON_CLK_A1_PLL + tristate "Amlogic A1 SoC PLL controller support" + depends on ARM64 + select COMMON_CLK_MESON_REGMAP + select COMMON_CLK_MESON_CLKC_UTILS + select COMMON_CLK_MESON_PLL + help + Support for the PLL clock controller on Amlogic A113L based + device, A1 SoC Family. Say Y if you want A1 PLL clock controller + to work. + +config COMMON_CLK_A1_PERIPHERALS + tristate "Amlogic A1 SoC Peripherals clock controller support" + depends on ARM64 + select COMMON_CLK_MESON_DUALDIV + select COMMON_CLK_MESON_REGMAP + select COMMON_CLK_MESON_CLKC_UTILS + help + Support for the Peripherals clock controller on Amlogic A113L based + device, A1 SoC Family. Say Y if you want A1 Peripherals clock + controller to work. + +config COMMON_CLK_C3_PLL + tristate "Amlogic C3 PLL clock controller" + depends on ARM64 + default ARCH_MESON + select COMMON_CLK_MESON_REGMAP + select COMMON_CLK_MESON_PLL + select COMMON_CLK_MESON_CLKC_UTILS + imply COMMON_CLK_SCMI + help + Support for the PLL clock controller on Amlogic C302X and C308L devices, + AKA C3. Say Y if you want the board to work, because PLLs are the parent + of most peripherals. + +config COMMON_CLK_C3_PERIPHERALS + tristate "Amlogic C3 peripherals clock controller" + depends on ARM64 + default ARCH_MESON + select COMMON_CLK_MESON_REGMAP + select COMMON_CLK_MESON_DUALDIV + select COMMON_CLK_MESON_CLKC_UTILS + imply COMMON_CLK_SCMI + imply COMMON_CLK_C3_PLL + help + Support for the Peripherals clock controller on Amlogic C302X and + C308L devices, AKA C3. Say Y if you want the peripherals clock to + work. + +config COMMON_CLK_G12A + tristate "G12 and SM1 SoC clock controllers support" + depends on ARM64 + default ARCH_MESON + select COMMON_CLK_MESON_REGMAP + select COMMON_CLK_MESON_CLKC_UTILS + select COMMON_CLK_MESON_DUALDIV + select COMMON_CLK_MESON_MPLL + select COMMON_CLK_MESON_PLL + select COMMON_CLK_MESON_AO_CLKC + select COMMON_CLK_MESON_CPU_DYNDIV + select COMMON_CLK_MESON_VID_PLL_DIV + select COMMON_CLK_MESON_VCLK + select MFD_SYSCON + help + Support for the clock controller on Amlogic S905D2, S905X2 and S905Y2 + devices, aka g12a. Say Y if you want peripherals to work. + +config COMMON_CLK_S4_PLL + tristate "S4 SoC PLL clock controllers support" + depends on ARM64 + default ARCH_MESON + select COMMON_CLK_MESON_CLKC_UTILS + select COMMON_CLK_MESON_MPLL + select COMMON_CLK_MESON_PLL + select COMMON_CLK_MESON_REGMAP + help + Support for the PLL clock controller on Amlogic S805X2 and S905Y4 devices, + AKA S4. Say Y if you want the board to work, because PLLs are the parent of + most peripherals. + +config COMMON_CLK_S4_PERIPHERALS + tristate "S4 SoC peripherals clock controllers support" + depends on ARM64 + default ARCH_MESON + select COMMON_CLK_MESON_CLKC_UTILS + select COMMON_CLK_MESON_REGMAP + select COMMON_CLK_MESON_DUALDIV + select COMMON_CLK_MESON_VID_PLL_DIV + help + Support for the peripherals clock controller on Amlogic S805X2 and S905Y4 + devices, AKA S4. Say Y if you want S4 peripherals clock controller to work. + +config COMMON_CLK_T7_PLL + tristate "Amlogic T7 SoC PLL controller support" + depends on ARM64 + default ARCH_MESON + select COMMON_CLK_MESON_REGMAP + select COMMON_CLK_MESON_CLKC_UTILS + select COMMON_CLK_MESON_MPLL + select COMMON_CLK_MESON_PLL + imply COMMON_CLK_SCMI + help + Support for the PLL clock controller on Amlogic A311D2 based + device, AKA T7. PLLs are required by most peripheral to operate. + Say Y if you want T7 PLL clock controller to work. + +config COMMON_CLK_T7_PERIPHERALS + tristate "Amlogic T7 SoC peripherals clock controller support" + depends on ARM64 + default ARCH_MESON + select COMMON_CLK_MESON_REGMAP + select COMMON_CLK_MESON_CLKC_UTILS + select COMMON_CLK_MESON_DUALDIV + imply COMMON_CLK_SCMI + imply COMMON_CLK_T7_PLL + help + Support for the peripherals clock controller on Amlogic A311D2 based + device, AKA T7. Peripherals are required by most peripheral to operate. + Say Y if you want T7 peripherals clock controller to work. +endmenu -- cgit v1.3.1