#ifndef __DT_BINDINGS_POWER_RK3368_POWER_H__ #define __DT_BINDINGS_POWER_RK3368_POWER_H__ /* VD_CORE */ #define RK3368_PD_A53_L0 0 #define RK3368_PD_A53_L1 1 #define RK3368_PD_A53_L2 2 #define RK3368_PD_A53_L3 3 #define RK3368_PD_SCU_L 4 #define RK3368_PD_A53_B0 5 #define RK3368_PD_A53_B1 6 #define RK3368_PD_A53_B2 7 #define RK3368_PD_A53_B3 8 #define RK3368_PD_SCU_B 9 /* VD_LOGIC */ #define RK3368_PD_BUS 10 #define RK3368_PD_PERI 11 #define RK3368_PD_VIO 12 #define RK3368_PD_ALIVE 13 #define RK3368_PD_VIDEO 14 #define RK3368_PD_GPU_0 15 #define RK3368_PD_GPU_1 16 /* VD_PMU */ #define RK3368_PD_PMU 17 #endif ='net-next.git Git repository'/>
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authorBjorn Helgaas <bhelgaas@google.com>2017-01-27 15:00:45 -0600
committerBjorn Helgaas <bhelgaas@google.com>2017-01-27 15:00:45 -0600
commit030305d69fc6963c16003f50d7e8d74b02d0a143 (patch)
tree363a4e34d199178769b7e7eeb26ea2620a55847b /tools/perf/arch/arm64/include/dwarf-regs-table.h
parent4d191b1b63c209e37bf27938ef365244d3c41084 (diff)
PCI/ASPM: Handle PCI-to-PCIe bridges as roots of PCIe hierarchies
In a struct pcie_link_state, link->root points to the pcie_link_state of the root of the PCIe hierarchy. For the topmost link, this points to itself (link->root = link). For others, we copy the pointer from the parent (link->root = link->parent->root). Previously we recognized that Root Ports originated PCIe hierarchies, but we treated PCI/PCI-X to PCIe Bridges as being in the middle of the hierarchy, and when we tried to copy the pointer from link->parent->root, there was no parent, and we dereferenced a NULL pointer: BUG: unable to handle kernel NULL pointer dereference at 0000000000000090 IP: [<ffffffff9e424350>] pcie_aspm_init_link_state+0x170/0x820 Recognize that PCI/PCI-X to PCIe Bridges originate PCIe hierarchies just like Root Ports do, so link->root for these devices should also point to itself. Fixes: 51ebfc92b72b ("PCI: Enumerate switches below PCI-to-PCIe bridges") Link: https://bugzilla.kernel.org/show_bug.cgi?id=193411 Link: https://bugzilla.opensuse.org/show_bug.cgi?id=1022181 Tested-by: lists@ssl-mail.com Tested-by: Jayachandran C. <jnair@caviumnetworks.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> CC: stable@vger.kernel.org # v4.2+
Diffstat (limited to 'tools/perf/arch/arm64/include/dwarf-regs-table.h')