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| author | Russell Currey <ruscur@russell.cc> | 2017-05-03 11:49:29 +1000 |
|---|---|---|
| committer | Stewart Smith <stewart@linux.vnet.ibm.com> | 2017-05-03 15:50:33 +1000 |
| commit | 5971f6e272a0dcfaa1157094f5e6a4f1929316d5 (patch) | |
| tree | 5712fe2401e4674d66914b50250486c62a6faff1 /hw | |
| parent | fa70adcb9d139bd9709681ea138bb2b10a08ff2a (diff) | |
| download | skiboot-5971f6e272a0dcfaa1157094f5e6a4f1929316d5.zip skiboot-5971f6e272a0dcfaa1157094f5e6a4f1929316d5.tar.gz skiboot-5971f6e272a0dcfaa1157094f5e6a4f1929316d5.tar.bz2 | |
npu, npu2: Describe diag data size in device tree
NPU and NPU2 don't use diag data, but the kernel will allocate a buffer for
NPU PHBs regardless. Set ibm,phb-diag-data-size to 0 for NPU PHBs to save a
whole precious 8K.
Signed-off-by: Russell Currey <ruscur@russell.cc>
Acked-by: Alistair Popple <alistair@popple.id.au>
Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
Diffstat (limited to 'hw')
| -rw-r--r-- | hw/npu.c | 1 | ||||
| -rw-r--r-- | hw/npu2.c | 1 |
2 files changed, 2 insertions, 0 deletions
@@ -1152,6 +1152,7 @@ static void npu_probe_phb(struct dt_node *dn) dt_add_property_cells(np, "ibm,npcq", dn->phandle); dt_add_property_cells(np, "ibm,links", links); dt_add_property(np, "ibm,mmio-window", mm_win, sizeof(mm_win)); + dt_add_property_cells(np, "ibm,phb-diag-data-size", 0); } static void npu_dev_populate_vendor_cap(struct npu_dev_cap *cap) @@ -1209,6 +1209,7 @@ static void npu2_probe_phb(struct dt_node *dn) dt_add_property_cells(np, "ibm,npcq", dn->phandle); dt_add_property_cells(np, "ibm,links", links); dt_add_property(np, "ibm,mmio-window", mm_win, sizeof(mm_win)); + dt_add_property_cells(np, "ibm,phb-diag-data-size", 0); } static uint32_t npu2_populate_pcie_cap(struct npu2_dev *dev, |