diff options
Diffstat (limited to 'drivers/net/wireless/intel/iwlwifi/pcie/ctxt-info-gen3.c')
| -rw-r--r-- | drivers/net/wireless/intel/iwlwifi/pcie/ctxt-info-gen3.c | 34 |
1 files changed, 26 insertions, 8 deletions
diff --git a/drivers/net/wireless/intel/iwlwifi/pcie/ctxt-info-gen3.c b/drivers/net/wireless/intel/iwlwifi/pcie/ctxt-info-gen3.c index cb60ba40fe97..800857e61d65 100644 --- a/drivers/net/wireless/intel/iwlwifi/pcie/ctxt-info-gen3.c +++ b/drivers/net/wireless/intel/iwlwifi/pcie/ctxt-info-gen3.c @@ -282,28 +282,46 @@ void iwl_pcie_ctxt_info_gen3_free(struct iwl_trans *trans, bool alive) } int iwl_trans_pcie_ctx_info_gen3_set_pnvm(struct iwl_trans *trans, - const void *data, u32 len) + const struct iwl_pnvm_image *pnvm_payloads) { struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans); struct iwl_prph_scratch_ctrl_cfg *prph_sc_ctrl = &trans_pcie->prph_scratch->ctrl_cfg; - int ret; + struct iwl_dram_data *dram = &trans_pcie->pnvm_dram; if (trans->trans_cfg->device_family < IWL_DEVICE_FAMILY_AX210) return 0; /* only allocate the DRAM if not allocated yet */ if (!trans->pnvm_loaded) { + u32 len, len0, len1; + if (WARN_ON(prph_sc_ctrl->pnvm_cfg.pnvm_size)) return -EBUSY; - ret = iwl_pcie_ctxt_info_alloc_dma(trans, data, len, - &trans_pcie->pnvm_dram); - if (ret < 0) { - IWL_DEBUG_FW(trans, "Failed to allocate PNVM DMA %d.\n", - ret); - return ret; + if (pnvm_payloads->n_chunks != + UNFRAGMENTED_PNVM_PAYLOADS_NUMBER) { + IWL_DEBUG_FW(trans, "expected 2 payloads, got %d.\n", + pnvm_payloads->n_chunks); + return -EINVAL; + } + len0 = pnvm_payloads->chunks[0].len; + len1 = pnvm_payloads->chunks[1].len; + if (len1 > 0xFFFFFFFF - len0) { + IWL_DEBUG_FW(trans, "sizes of payloads overflow.\n"); + return -EINVAL; + } + len = len0 + len1; + + dram->block = iwl_pcie_ctxt_info_dma_alloc_coherent(trans, len, &dram->physical); + if (!dram->block) { + IWL_DEBUG_FW(trans, "Failed to allocate PNVM DMA.\n"); + return -ENOMEM; } + dram->size = len; + memcpy(dram->block, pnvm_payloads->chunks[0].data, len0); + memcpy((u8 *)dram->block + len0, pnvm_payloads->chunks[1].data, + len1); } prph_sc_ctrl->pnvm_cfg.pnvm_base_addr = |