mirror of
https://github.com/edk2-porting/linux-next.git
synced 2025-01-25 07:06:40 +08:00
e5e84f0a66
This patch actually hooks up doorbell interrupts on POWER8: - Select the PPC_DOORBELL Kconfig option from PPC_PSERIES - Add the doorbell CPU feature bit to POWER8 - We define a new pSeries_cause_ipi_mux() function that issues a doorbell interrupt if the recipient is another thread within the same core as the sender. If the recipient is in a different core it falls back to using XICS to deliver the IPI as before. - During pSeries_smp_probe() at boot, we check if doorbell interrupts are supported. If they are we set the cause_ipi function pointer to the above mentioned function, otherwise we leave it as whichever XICS cause_ipi function was determined by xics_smp_probe(). Signed-off-by: Ian Munsie <imunsie@au1.ibm.com> Tested-by: Michael Neuling <mikey@neuling.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> |
||
|---|---|---|
| .. | ||
| 8xx | ||
| 40x | ||
| 44x | ||
| 52xx | ||
| 82xx | ||
| 83xx | ||
| 85xx | ||
| 86xx | ||
| 512x | ||
| amigaone | ||
| cell | ||
| chrp | ||
| embedded6xx | ||
| maple | ||
| pasemi | ||
| powermac | ||
| powernv | ||
| prep | ||
| ps3 | ||
| pseries | ||
| wsp | ||
| fsl_uli1575.c | ||
| Kconfig | ||
| Kconfig.cputype | ||
| Makefile | ||