| From 460275f124fb072dca218a6b43b6370eebbab20d Mon Sep 17 00:00:00 2001 |
| From: =?UTF-8?q?Pali=20Roh=C3=A1r?= <pali@kernel.org> |
| Date: Tue, 5 Oct 2021 20:09:40 +0200 |
| Subject: PCI: Add PCI_EXP_DEVCTL_PAYLOAD_* macros |
| MIME-Version: 1.0 |
| Content-Type: text/plain; charset=UTF-8 |
| Content-Transfer-Encoding: 8bit |
| |
| From: Pali Rohár <pali@kernel.org> |
| |
| commit 460275f124fb072dca218a6b43b6370eebbab20d upstream. |
| |
| Define a macro PCI_EXP_DEVCTL_PAYLOAD_* for every possible Max Payload |
| Size in linux/pci_regs.h, in the same style as PCI_EXP_DEVCTL_READRQ_*. |
| |
| Link: https://lore.kernel.org/r/20211005180952.6812-2-kabel@kernel.org |
| Signed-off-by: Pali Rohár <pali@kernel.org> |
| Signed-off-by: Marek Behún <kabel@kernel.org> |
| Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> |
| Reviewed-by: Marek Behún <kabel@kernel.org> |
| Reviewed-by: Bjorn Helgaas <bhelgaas@google.com> |
| Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
| --- |
| include/uapi/linux/pci_regs.h | 6 ++++++ |
| 1 file changed, 6 insertions(+) |
| |
| --- a/include/uapi/linux/pci_regs.h |
| +++ b/include/uapi/linux/pci_regs.h |
| @@ -502,6 +502,12 @@ |
| #define PCI_EXP_DEVCTL_URRE 0x0008 /* Unsupported Request Reporting En. */ |
| #define PCI_EXP_DEVCTL_RELAX_EN 0x0010 /* Enable relaxed ordering */ |
| #define PCI_EXP_DEVCTL_PAYLOAD 0x00e0 /* Max_Payload_Size */ |
| +#define PCI_EXP_DEVCTL_PAYLOAD_128B 0x0000 /* 128 Bytes */ |
| +#define PCI_EXP_DEVCTL_PAYLOAD_256B 0x0020 /* 256 Bytes */ |
| +#define PCI_EXP_DEVCTL_PAYLOAD_512B 0x0040 /* 512 Bytes */ |
| +#define PCI_EXP_DEVCTL_PAYLOAD_1024B 0x0060 /* 1024 Bytes */ |
| +#define PCI_EXP_DEVCTL_PAYLOAD_2048B 0x0080 /* 2048 Bytes */ |
| +#define PCI_EXP_DEVCTL_PAYLOAD_4096B 0x00a0 /* 4096 Bytes */ |
| #define PCI_EXP_DEVCTL_EXT_TAG 0x0100 /* Extended Tag Field Enable */ |
| #define PCI_EXP_DEVCTL_PHANTOM 0x0200 /* Phantom Functions Enable */ |
| #define PCI_EXP_DEVCTL_AUX_PME 0x0400 /* Auxiliary Power PM Enable */ |
