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| author | Russell Currey <ruscur@russell.cc> | 2017-06-14 07:19:58 +0300 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2017-06-27 05:14:26 +0300 |
| commit | 31bbd45af313c3b1cdaa98e5a2de65194cf7d948 (patch) | |
| tree | 1933c646cb0671e28f7479ad68abdb71ab3f0239 /arch/powerpc/platforms/powernv/pci.h | |
| parent | 2bafb7ffa3e0908ad2e69b94c436a0326ef2e7e1 (diff) | |
| download | linux-31bbd45af313c3b1cdaa98e5a2de65194cf7d948.tar.xz | |
powerpc/powernv/pci: Reduce spam when dumping PEST
Dumping the PE State Tables (PEST) can be highly verbose if a number of PEs
are affected, especially in the case where the whole PHB is frozen and 512
lines get printed. Check for duplicates when dumping the PEST to reduce
useless output.
For example:
PE[0f8] A/B: 9700002600000000 80000080d00000f8
PE[0f9] A/B: 8000000000000000 0000000000000000
PE[..0fe] A/B: as above
PE[0ff] A/B: 8440002b00000000 0000000000000000
instead of:
PE[0f8] A/B: 9700002600000000 80000080d00000f8
PE[0f9] A/B: 8000000000000000 0000000000000000
PE[0fa] A/B: 8000000000000000 0000000000000000
PE[0fb] A/B: 8000000000000000 0000000000000000
PE[0fc] A/B: 8000000000000000 0000000000000000
PE[0fd] A/B: 8000000000000000 0000000000000000
PE[0fe] A/B: 8000000000000000 0000000000000000
PE[0ff] A/B: 8440002b00000000 0000000000000000
and you can imagine how much worse it can get for 512 PEs.
Signed-off-by: Russell Currey <ruscur@russell.cc>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch/powerpc/platforms/powernv/pci.h')
| -rw-r--r-- | arch/powerpc/platforms/powernv/pci.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/powerpc/platforms/powernv/pci.h b/arch/powerpc/platforms/powernv/pci.h index 18c8a2fa03b8..6abc77dd9261 100644 --- a/arch/powerpc/platforms/powernv/pci.h +++ b/arch/powerpc/platforms/powernv/pci.h @@ -33,6 +33,9 @@ enum pnv_phb_model { #define PNV_IODA_PE_SLAVE (1 << 4) /* Slave PE in compound case */ #define PNV_IODA_PE_VF (1 << 5) /* PE for one VF */ +/* Indicates operations are frozen for a PE: MMIO in PESTA & DMA in PESTB. */ +#define PNV_IODA_STOPPED_STATE 0x8000000000000000 + /* Data associated with a PE, including IOMMU tracking etc.. */ struct pnv_phb; struct pnv_ioda_pe { |