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path: root/include/dt-bindings/memory/tegra124-mc.h
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#ifndef DT_BINDINGS_MEMORY_TEGRA124_MC_H
#define DT_BINDINGS_MEMORY_TEGRA124_MC_H

#define TEGRA_SWGROUP_PTC	0
#define TEGRA_SWGROUP_DC	1
#define TEGRA_SWGROUP_DCB	2
#define TEGRA_SWGROUP_AFI	3
#define TEGRA_SWGROUP_AVPC	4
#define TEGRA_SWGROUP_HDA	5
#define TEGRA_SWGROUP_HC	6
#define TEGRA_SWGROUP_MSENC	7
#define TEGRA_SWGROUP_PPCS	8
#define TEGRA_SWGROUP_SATA	9
#define TEGRA_SWGROUP_VDE	10
#define TEGRA_SWGROUP_MPCORELP	11
#define TEGRA_SWGROUP_MPCORE	12
#define TEGRA_SWGROUP_ISP2	13
#define TEGRA_SWGROUP_XUSB_HOST	14
#define TEGRA_SWGROUP_XUSB_DEV	15
#define TEGRA_SWGROUP_ISP2B	16
#define TEGRA_SWGROUP_TSEC	17
#define TEGRA_SWGROUP_A9AVP	18
#define TEGRA_SWGROUP_GPU	19
#define TEGRA_SWGROUP_SDMMC1A	20
#define TEGRA_SWGROUP_SDMMC2A	21
#define TEGRA_SWGROUP_SDMMC3A	22
#define TEGRA_SWGROUP_SDMMC4A	23
#define TEGRA_SWGROUP_VIC	24
#define TEGRA_SWGROUP_VI	25

#endif
63a4e34d199178769b7e7eeb26ea2620a55847b /tools/perf/scripts/perl/bin/rwtop-report 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/scripts/perl/bin/rwtop-report')