diff mbox series

[v1,3/8] pcie: add a way to get the outstanding page request allocation (pri) from the config space.

Message ID 20240530122439.42888-4-clement.mathieu--drif@eviden.com (mailing list archive)
State New, archived
Headers show
Series PRI support for VT-d | expand

Commit Message

CLEMENT MATHIEU--DRIF May 30, 2024, 12:25 p.m. UTC 
Signed-off-by: Clément Mathieu--Drif <clement.mathieu--drif@eviden.com>
---
 hw/pci/pcie.c         | 8 ++++++++
 include/hw/pci/pcie.h | 1 +
 2 files changed, 9 insertions(+)
diff mbox series

Patch

diff --git a/hw/pci/pcie.c b/hw/pci/pcie.c
index 3fb6588c31..d11b11fc34 100644
--- a/hw/pci/pcie.c
+++ b/hw/pci/pcie.c
@@ -1227,6 +1227,14 @@  void pcie_pri_init(PCIDevice *dev, uint16_t offset, uint32_t outstanding_pr_cap,
     dev->exp.pri_cap = offset;
 }
 
+uint32_t pcie_pri_get_req_alloc(const PCIDevice *dev)
+{
+    if (!pcie_pri_enabled(dev)) {
+        return 0;
+    }
+    return pci_get_long(dev->config + dev->exp.pri_cap + PCI_PRI_ALLOC_REQ);
+}
+
 bool pcie_pri_enabled(const PCIDevice *dev)
 {
     if (!pci_is_express(dev) || !dev->exp.pri_cap) {
diff --git a/include/hw/pci/pcie.h b/include/hw/pci/pcie.h
index b976fd739a..7eb448148b 100644
--- a/include/hw/pci/pcie.h
+++ b/include/hw/pci/pcie.h
@@ -158,6 +158,7 @@  void pcie_pasid_init(PCIDevice *dev, uint16_t offset, uint8_t pasid_width,
 void pcie_pri_init(PCIDevice *dev, uint16_t offset, uint32_t outstanding_pr_cap,
                    bool prg_response_pasid_req);
 
+uint32_t pcie_pri_get_req_alloc(const PCIDevice *dev);
 bool pcie_pri_enabled(const PCIDevice *dev);
 bool pcie_pasid_enabled(const PCIDevice *dev);
 bool pcie_ats_enabled(const PCIDevice *dev);