From 1cd93911c6a461bbe8585b9d4e2d76ba42abead3 Mon Sep 17 00:00:00 2001
From: Auger Eric <eric.auger@redhat.com>
Date: Mon, 6 Nov 2017 17:08:42 +0100
Subject: [PATCH 6/9] hw/pci-host/gpex: Set INTx index/gsi mapping

RH-Author: Auger Eric <eric.auger@redhat.com>
Message-id: <1509988125-30275-2-git-send-email-eric.auger@redhat.com>
Patchwork-id: 77509
O-Subject: [RHV7.5 qemu-kvm-ma PATCH 1/4] hw/pci-host/gpex: Set INTx index/gsi mapping
Bugzilla: 1460957
RH-Acked-by: Alex Williamson <alex.williamson@redhat.com>
RH-Acked-by: Laurent Vivier <lvivier@redhat.com>
RH-Acked-by: Miroslav Rezanina <mrezanin@redhat.com>

From: Pranavkumar Sawargaonkar <pranavkumar@linaro.org>

To implement INTx to gsi routing we need to pass the gpex host
bridge the gsi associated to each INTx index. Let's introduce
irq_num array and gpex_set_irq_num setter function.

Signed-off-by: Pranavkumar Sawargaonkar <pranavkumar@linaro.org>
Signed-off-by: Tushar Jagad <tushar.jagad@linaro.org>
Signed-off-by: Eric Auger <eric.auger@redhat.com>
Tested-by: Feng Kan <fkan@apm.com>
Reviewed-by: Andrew Jones <drjones@redhat.com>
Message-id: 1505296004-6798-2-git-send-email-eric.auger@redhat.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
(cherry picked from commit 70bfdce6a1263fd06144ecc1c3727c44e562d89b)
Signed-off-by: Eric Auger <eric.auger@redhat.com>
Signed-off-by: Miroslav Rezanina <mrezanin@redhat.com>
---
 hw/pci-host/gpex.c         | 10 ++++++++++
 include/hw/pci-host/gpex.h |  3 +++
 2 files changed, 13 insertions(+)

diff --git a/hw/pci-host/gpex.c b/hw/pci-host/gpex.c
index 59f3132..d6cf621 100644
--- a/hw/pci-host/gpex.c
+++ b/hw/pci-host/gpex.c
@@ -43,6 +43,16 @@ static void gpex_set_irq(void *opaque, int irq_num, int level)
     qemu_set_irq(s->irq[irq_num], level);
 }
 
+int gpex_set_irq_num(GPEXHost *s, int index, int gsi)
+{
+    if (index >= GPEX_NUM_IRQS) {
+        return -EINVAL;
+    }
+
+    s->irq_num[index] = gsi;
+    return 0;
+}
+
 static void gpex_host_realize(DeviceState *dev, Error **errp)
 {
     PCIHostState *pci = PCI_HOST_BRIDGE(dev);
diff --git a/include/hw/pci-host/gpex.h b/include/hw/pci-host/gpex.h
index 68c9348..aef38b8 100644
--- a/include/hw/pci-host/gpex.h
+++ b/include/hw/pci-host/gpex.h
@@ -51,6 +51,9 @@ typedef struct GPEXHost {
     MemoryRegion io_ioport;
     MemoryRegion io_mmio;
     qemu_irq irq[GPEX_NUM_IRQS];
+    int irq_num[GPEX_NUM_IRQS];
 } GPEXHost;
 
+int gpex_set_irq_num(GPEXHost *s, int index, int gsi);
+
 #endif /* HW_GPEX_H */
-- 
1.8.3.1