xserver: Branch 'master' - 2 commits

[Keith Packard]

 hw/xfree86/common/xf86Bus.c         |    3 +++
 hw/xfree86/common/xf86platformBus.c |   22 ++++++++++++++++++----
 hw/xfree86/common/xf86platformBus.h |    1 +
 3 files changed, 22 insertions(+), 4 deletions(-)

New commits:
commit 5d133276de9c50146e80ffc69edd429c2afe98e6
Author: Thierry Reding <treding at nvidia.com>
Date:   Thu Feb 13 13:36:12 2014 +0100

    xfree86: Allow non-PCI devices as primary
    
    On platforms that don't support PCI or have no GPU attached to the PCI
    bus, there can still be a primary device on a non-PCI bus.
    
    Signed-off-by: Thierry Reding <treding at nvidia.com>
    Reviewed-by: Rob Clark <robdclark at gmail.com>
    Tested-by: Rob Clark <robdclark at gmail.com>
    Signed-off-by: Keith Packard <keithp at keithp.com>

diff --git a/hw/xfree86/common/xf86platformBus.c b/hw/xfree86/common/xf86platformBus.c
index 1bacc49..5ad9b70 100644
--- a/hw/xfree86/common/xf86platformBus.c
+++ b/hw/xfree86/common/xf86platformBus.c
@@ -435,10 +435,9 @@ xf86platformProbeDev(DriverPtr drvp)
                 /* for non-seat0 servers assume first device is the master */
                 if (ServerIsNotSeat0())
                     break;
-                if (xf86_platform_devices[j].pdev) {
-                    if (xf86IsPrimaryPlatform(&xf86_platform_devices[j]))
-                        break;
-                }
+
+                if (xf86IsPrimaryPlatform(&xf86_platform_devices[j]))
+                    break;
             }
         }
 
commit 2f0183222b4279266e6ef60b923738ff55f0afba
Author: Thierry Reding <treding at nvidia.com>
Date:   Thu Feb 13 13:31:31 2014 +0100

    xfree86: Fallback to first platform device as primary
    
    When neither of the various bus implementations was able to find a
    primary bus and device, fallback to using the platform bus as primary
    bus and the first platform device as primary device.
    
    Signed-off-by: Thierry Reding <treding at nvidia.com>
    Reviewed-by: Rob Clark <robdclark at gmail.com>
    Tested-by: Rob Clark <robdclark at gmail.com>
    Signed-off-by: Keith Packard <keithp at keithp.com>

diff --git a/hw/xfree86/common/xf86Bus.c b/hw/xfree86/common/xf86Bus.c
index b3b3f8c..bd3e4e3 100644
--- a/hw/xfree86/common/xf86Bus.c
+++ b/hw/xfree86/common/xf86Bus.c
@@ -210,6 +210,9 @@ xf86BusProbe(void)
 #if (defined(__sparc__) || defined(__sparc)) && !defined(__OpenBSD__)
     xf86SbusProbe();
 #endif
+#ifdef XSERVER_PLATFORM_BUS
+    xf86platformPrimary();
+#endif
 }
 
 /*
diff --git a/hw/xfree86/common/xf86platformBus.c b/hw/xfree86/common/xf86platformBus.c
index 9460399..1bacc49 100644
--- a/hw/xfree86/common/xf86platformBus.c
+++ b/hw/xfree86/common/xf86platformBus.c
@@ -594,4 +594,19 @@ void xf86platformVTProbe(void)
         xf86PlatformReprobeDevice(i, xf86_platform_devices[i].attribs);
     }
 }
+
+void xf86platformPrimary(void)
+{
+    /* use the first platform device as a fallback */
+    if (primaryBus.type == BUS_NONE) {
+        xf86Msg(X_INFO, "no primary bus or device found\n");
+
+        if (xf86_num_platform_devices > 0) {
+            primaryBus.id.plat = &xf86_platform_devices[0];
+            primaryBus.type = BUS_PLATFORM;
+
+            xf86Msg(X_NONE, "\tfalling back to %s\n", primaryBus.id.plat->attribs->syspath);
+        }
+    }
+}
 #endif
diff --git a/hw/xfree86/common/xf86platformBus.h b/hw/xfree86/common/xf86platformBus.h
index 317dd24..a7335b9 100644
--- a/hw/xfree86/common/xf86platformBus.h
+++ b/hw/xfree86/common/xf86platformBus.h
@@ -155,6 +155,7 @@ extern _X_EXPORT int
 xf86PlatformMatchDriver(char *matches[], int nmatches);
 
 extern void xf86platformVTProbe(void);
+extern void xf86platformPrimary(void);
 #endif
 
 #endif