mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-05 05:57:08 +07:00
d4b92fb253
The "powered-down" CPU idle mode of Tegra cut off the vdd_cpu rail, it include the power of GIC. That caused the SGI (Software Generated Interrupt) been lost. Because the SGI can't wake up the CPU that in the "powered-down" CPU idle mode. We need to check if there is any pending SGI when go into "powered-down" CPU idle mode. This is important especially when applying the coupled cpuidle framework into "power-down" cpuidle dirver. Because the coupled cpuidle framework may have the chance that misses IPI_SINGLE_FUNC handling sometimes. For the PPI or SPI, something like the legacy peripheral interrupt. It still can be maintained by Tegra legacy interrupt controller. If there is any pending PPI or SPI when CPU in "powered-down" CPU idle mode. The CPU can be woken up immediately. So we don't need to take care the same situation for PPI or SPI. Signed-off-by: Joseph Lo <josephl@nvidia.com> Signed-off-by: Stephen Warren <swarren@nvidia.com> |
||
|---|---|---|
| .. | ||
| alpha | ||
| arm | ||
| arm64 | ||
| avr32 | ||
| blackfin | ||
| c6x | ||
| cris | ||
| frv | ||
| h8300 | ||
| hexagon | ||
| ia64 | ||
| m32r | ||
| m68k | ||
| microblaze | ||
| mips | ||
| mn10300 | ||
| openrisc | ||
| parisc | ||
| powerpc | ||
| s390 | ||
| score | ||
| sh | ||
| sparc | ||
| tile | ||
| um | ||
| unicore32 | ||
| x86 | ||
| xtensa | ||
| .gitignore | ||
| Kconfig | ||