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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-08 17:45:30 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-08 17:45:30 +0000 |
| commit | 01db417e0aee3e51df4f5f3775535fd1fb15e329 (patch) | |
| tree | 12d419efb27541c39ef63831e0d899339ecfef4f /drivers/pci/pcie/dpc.c | |
| parent | Adding debian version 5.10.209-2. (diff) | |
| download | linux-01db417e0aee3e51df4f5f3775535fd1fb15e329.tar.xz linux-01db417e0aee3e51df4f5f3775535fd1fb15e329.zip | |
Merging upstream version 5.10.216.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'drivers/pci/pcie/dpc.c')
| -rw-r--r-- | drivers/pci/pcie/dpc.c | 17 |
1 files changed, 11 insertions, 6 deletions
diff --git a/drivers/pci/pcie/dpc.c b/drivers/pci/pcie/dpc.c index f21d64ae4..ab83f78f3 100644 --- a/drivers/pci/pcie/dpc.c +++ b/drivers/pci/pcie/dpc.c @@ -231,7 +231,7 @@ static void dpc_process_rp_pio_error(struct pci_dev *pdev) for (i = 0; i < pdev->dpc_rp_log_size - 5; i++) { pci_read_config_dword(pdev, - cap + PCI_EXP_DPC_RP_PIO_TLPPREFIX_LOG, &prefix); + cap + PCI_EXP_DPC_RP_PIO_TLPPREFIX_LOG + i * 4, &prefix); pci_err(pdev, "TLP Prefix Header: dw%d, %#010x\n", i, prefix); } clear_status: @@ -335,11 +335,16 @@ void pci_dpc_init(struct pci_dev *pdev) return; pdev->dpc_rp_extensions = true; - pdev->dpc_rp_log_size = (cap & PCI_EXP_DPC_RP_PIO_LOG_SIZE) >> 8; - if (pdev->dpc_rp_log_size < 4 || pdev->dpc_rp_log_size > 9) { - pci_err(pdev, "RP PIO log size %u is invalid\n", - pdev->dpc_rp_log_size); - pdev->dpc_rp_log_size = 0; + + /* Quirks may set dpc_rp_log_size if device or firmware is buggy */ + if (!pdev->dpc_rp_log_size) { + pdev->dpc_rp_log_size = + (cap & PCI_EXP_DPC_RP_PIO_LOG_SIZE) >> 8; + if (pdev->dpc_rp_log_size < 4 || pdev->dpc_rp_log_size > 9) { + pci_err(pdev, "RP PIO log size %u is invalid\n", + pdev->dpc_rp_log_size); + pdev->dpc_rp_log_size = 0; + } } } |