| Message ID | 20200414203005.5166-2-jonathan.derrick@intel.com |
|---|---|
| State | New |
| Headers | show |
| Series | PCI Bridge Emulation changes for v5.8 | expand |
On Tue, 14 Apr 2020 16:30:01 -0400, Jon Derrick wrote: > This patch fixes two bit conflicts in the pci-bridge-emul driver: > > 1. Bit 3 of Device Status (19 of Device Control) is marked as both > Write-1-to-Clear and Read-Only. It should be Write-1-to-Clear. > The Read-Only and Reserved bitmasks are shifted by 1 bit due to this > error. > > 2. Bit 12 of Slot Control is marked as both Read-Write and Reserved. > It should be Read-Write. > > Signed-off-by: Jon Derrick <jonathan.derrick@intel.com> > --- > drivers/pci/pci-bridge-emul.c | 6 +++--- > 1 file changed, 3 insertions(+), 3 deletions(-) > Acked-by: Rob Herring <robh@kernel.org>
diff --git a/drivers/pci/pci-bridge-emul.c b/drivers/pci/pci-bridge-emul.c index 4f4f54bc732e..faa414655f33 100644 --- a/drivers/pci/pci-bridge-emul.c +++ b/drivers/pci/pci-bridge-emul.c @@ -185,8 +185,8 @@ static const struct pci_bridge_reg_behavior pcie_cap_regs_behavior[] = { * RO, the rest is reserved */ .w1c = GENMASK(19, 16), - .ro = GENMASK(20, 19), - .rsvd = GENMASK(31, 21), + .ro = GENMASK(21, 20), + .rsvd = GENMASK(31, 22), }, [PCI_EXP_LNKCAP / 4] = { @@ -226,7 +226,7 @@ static const struct pci_bridge_reg_behavior pcie_cap_regs_behavior[] = { PCI_EXP_SLTSTA_CC | PCI_EXP_SLTSTA_DLLSC) << 16, .ro = (PCI_EXP_SLTSTA_MRLSS | PCI_EXP_SLTSTA_PDS | PCI_EXP_SLTSTA_EIS) << 16, - .rsvd = GENMASK(15, 12) | (GENMASK(15, 9) << 16), + .rsvd = GENMASK(15, 13) | (GENMASK(15, 9) << 16), }, [PCI_EXP_RTCTL / 4] = {
This patch fixes two bit conflicts in the pci-bridge-emul driver: 1. Bit 3 of Device Status (19 of Device Control) is marked as both Write-1-to-Clear and Read-Only. It should be Write-1-to-Clear. The Read-Only and Reserved bitmasks are shifted by 1 bit due to this error. 2. Bit 12 of Slot Control is marked as both Read-Write and Reserved. It should be Read-Write. Signed-off-by: Jon Derrick <jonathan.derrick@intel.com> --- drivers/pci/pci-bridge-emul.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-)