6490c4903d
To support Cooperative Memory Overcommitment (CMO), we need to check for failure from some of the tce hcalls. These changes for the pseries platform affect the powerpc architecture; patches for the other affected platforms are included in this patch. pSeries platform IOMMU code changes: * platform TCE functions must handle H_NOT_ENOUGH_RESOURCES errors and return an error. Architecture IOMMU code changes: * Calls to ppc_md.tce_build need to check return values and return DMA_MAPPING_ERROR for transient errors. Architecture changes: * struct machdep_calls for tce_build*_pSeriesLP functions need to change to indicate failure. * all other platforms will need updates to iommu functions to match the new calling semantics; they will return 0 on success. The other platforms default configs have been built, but no further testing was performed. Signed-off-by: Robert Jennings <rcj@linux.vnet.ibm.com> Acked-by: Olof Johansson <olof@lixom.net> Acked-by: Paul Mackerras <paulus@samba.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> |
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| .. | ||
| call_hpt.h | ||
| call_pci.h | ||
| call_sm.h | ||
| dt.c | ||
| exception.h | ||
| exception.S | ||
| htab.c | ||
| hvcall.S | ||
| hvlog.c | ||
| hvlpconfig.c | ||
| iommu.c | ||
| ipl_parms.h | ||
| irq.c | ||
| irq.h | ||
| it_exp_vpd_panel.h | ||
| it_lp_naca.h | ||
| Kconfig | ||
| ksyms.c | ||
| lpardata.c | ||
| lpevents.c | ||
| main_store.h | ||
| Makefile | ||
| mf.c | ||
| misc.S | ||
| naca.h | ||
| pci.c | ||
| pci.h | ||
| proc.c | ||
| processor_vpd.h | ||
| release_data.h | ||
| setup.c | ||
| setup.h | ||
| smp.c | ||
| smp.h | ||
| spcomm_area.h | ||
| vio.c | ||
| viopath.c | ||
| vpd_areas.h | ||