patch to import Jon Smirl's work from Bitkeeper

1 files changed, 140 insertions, 0 deletions

diff --git a/src/glx/mini/drmtest.c b/src/glx/mini/drmtest.c
new file mode 100644
index 00000000000..f9cad3994e0
--- /dev/null
+++ b/src/glx/mini/drmtest.c
@@ -0,0 +1,140 @@
+#include <assert.h>
+#include <unistd.h>
+#include <stdio.h>
+#include <string.h>
+#include "xf86drm.h"
+
+char *pciBusID = "PCI:1:0:0";
+#define DRM_PAGE_SIZE 4096
+void *pSAREA;
+
+
+static int client( void )
+{
+   int fd, ret, err;
+   drmContext clientContext;
+
+   fprintf(stderr, "Opening client drm\n");
+
+   fd = drmOpen(NULL,pciBusID);
+   if (fd < 0) {
+      fprintf(stderr, "failed to open DRM: %s\n", strerror(-fd));
+      return 1;
+   }
+
+
+   fprintf(stderr, "Create server context\n");
+   if ((err = drmCreateContext(fd, &clientContext)) != 0) {
+      fprintf(stderr, "%s: drmCreateContext failed %d\n", __FUNCTION__, err);
+      return 0;
+   }
+
+
+   fprintf(stderr, "DRM_LOCK( %d %p %d )\n", fd, pSAREA, clientContext);
+   DRM_LOCK(fd, pSAREA, clientContext, 0);
+   fprintf(stderr, "locked\n");
+   DRM_UNLOCK(fd, pSAREA, clientContext);
+   fprintf(stderr, "DRM_UNLOCK finished\n");
+
+
+   fprintf(stderr, "Closing client drm: %d\n", fd);
+   ret = drmClose(fd);
+   fprintf(stderr, "done %d\n", ret);
+
+   return ret;
+}
+
+int main( int argc, char *argv[] )
+{
+   char *drmModuleName = "radeon";
+   int drmFD;
+   int err;
+   int SAREASize;
+   drmHandle hSAREA;
+   drmContext serverContext;
+
+   /* Note that drmOpen will try to load the kernel module, if needed. */
+   drmFD = drmOpen(drmModuleName, NULL );
+   if (drmFD < 0) {
+      /* failed to open DRM */
+      fprintf(stderr, "[drm] drmOpen failed\n");
+      return 0;
+   }
+
+
+   if ((err = drmSetBusid(drmFD, pciBusID)) < 0) {
+      drmClose(drmFD);
+      fprintf(stderr, "[drm] drmSetBusid failed (%d, %s), %s\n",
+	      drmFD, pciBusID, strerror(-err));
+      return 0;
+   }
+
+   
+   SAREASize = DRM_PAGE_SIZE;
+   
+   if (drmAddMap( drmFD,
+		  0,
+		  SAREASize,
+		  DRM_SHM,
+		  DRM_CONTAINS_LOCK,
+		  &hSAREA) < 0)
+   {
+      drmClose(drmFD);
+      fprintf(stderr, "[drm] drmAddMap failed\n");
+      return 0;
+   }
+
+   fprintf(stderr, "[drm] added %d byte SAREA at 0x%08lx\n",
+	   SAREASize, hSAREA);
+
+   if (drmMap( drmFD,
+	       hSAREA,
+	       SAREASize,
+	       (drmAddressPtr)(&pSAREA)) < 0)
+   {
+      drmClose(drmFD);
+      fprintf(stderr, "[drm] drmMap failed\n");
+      return 0;
+   }
+
+   memset(pSAREA, 0, SAREASize);
+   fprintf(stderr, "[drm] mapped SAREA 0x%08lx to %p, size %d\n",
+	   hSAREA, pSAREA, SAREASize);
+
+   fprintf(stderr, "Create server context\n");
+   if ((err = drmCreateContext(drmFD, &serverContext)) != 0) {
+      fprintf(stderr, "%s: drmCreateContext failed %d\n", __FUNCTION__, err);
+      return 0;
+   }
+
+
+   fprintf(stderr, "DRM_LOCK( %d %p %d )\n", drmFD, pSAREA, serverContext);
+   DRM_LOCK(drmFD, pSAREA, serverContext, 0);
+   fprintf(stderr, "locked\n");
+   DRM_UNLOCK(drmFD, pSAREA, serverContext);
+   fprintf(stderr, "DRM_UNLOCK finished\n");
+
+
+   client();
+
+
+   fprintf(stderr, "DRM_LOCK( %d %p %d )\n", drmFD, pSAREA, serverContext);
+   DRM_LOCK(drmFD, pSAREA, serverContext, 0);
+   fprintf(stderr, "locked\n");
+   DRM_UNLOCK(drmFD, pSAREA, serverContext);
+   fprintf(stderr, "DRM_UNLOCK finished\n");
+
+
+   drmUnmap(pSAREA, SAREASize);
+   fprintf(stderr, "[drm] unmapped SAREA 0x%08lx from %p, size %d\n",
+	   hSAREA, pSAREA, SAREASize);
+   pSAREA = 0;
+
+   fprintf(stderr, "%s: Closing DRM fd\n", __FUNCTION__);
+   (void)drmClose(drmFD);
+
+   return 0;
+}
+
+
+