[Mesa-dev] [PATCH 40/43] gallium/targets/d3dadapter9: Fix device detection for render-nodes

[Axel Davy]

When on a render node the unique ioctl doesn't work.

This patch drops the code to detect the device, which relied
on an ioctl, and replaces it by the mesa loader function.
The mesa loader function is more complete and won't fail for render-nodes.

Alternatively we could also have used the pipe cap to
determine the vendor and device id from the driver.

Signed-off-by: Axel Davy <axel.davy at ens.fr>
---
 src/gallium/targets/d3dadapter9/drm.c | 59 +++++++++--------------------------
 1 file changed, 14 insertions(+), 45 deletions(-)

diff --git a/src/gallium/targets/d3dadapter9/drm.c b/src/gallium/targets/d3dadapter9/drm.c
index dd916f1..bdc402f 100644
--- a/src/gallium/targets/d3dadapter9/drm.c
+++ b/src/gallium/targets/d3dadapter9/drm.c
@@ -135,53 +135,22 @@ get_bus_info( int fd,
               DWORD *subsysid,
               DWORD *revision )
 {
-    drm_unique_t u;
-
-    u.unique_len = 0;
-    u.unique = NULL;
-
-    if (ioctl(fd, DRM_IOCTL_GET_UNIQUE, &u)) { return; }
-    u.unique = CALLOC(u.unique_len+1, 1);
-
-    if (ioctl(fd, DRM_IOCTL_GET_UNIQUE, &u)) { return; }
-    u.unique[u.unique_len] = '\0';
-
-    DBG("DRM Device BusID: %s\n", u.unique);
-    if (strncmp("pci:", u.unique, 4) == 0) {
-        char fname[512]; /* this ought to be enough */
-        int l = snprintf(fname, 512, "/sys/bus/pci/devices/%s/", u.unique+4);
-
-        /* VendorId */
-        snprintf(fname+l, 512-l, "vendor");
-        *vendorid = read_file_dword(fname);
-        /* DeviceId */
-        snprintf(fname+l, 512-l, "device");
-        *deviceid = read_file_dword(fname);
-        /* SubSysId */
-        snprintf(fname+l, 512-l, "subsystem_device");
-        *subsysid = (read_file_dword(fname) << 16) & 0xFFFF0000;
-        snprintf(fname+l, 512-l, "subsystem_vendor");
-        *subsysid |= read_file_dword(fname) & 0x0000FFFF;
-        /* Revision */
-        {
-            int cfgfd;
-
-            snprintf(fname+l, 512-l, "config");
-            cfgfd = open(fname, O_RDONLY);
-            if (cfgfd >= 0) {
-                *revision = read_config_dword(cfgfd, 0x8) & 0x000000FF;
-                close(cfgfd);
-            } else {
-                DBG("Unable to get raw PCI information from `%s'\n", fname);
-            }
-        }
-        DBG("PCI info: vendor=0x%04x, device=0x%04x, subsys=0x%08x, rev=%d\n",
-            *vendorid, *deviceid, *subsysid, *revision);
+    int vid, did;
+
+    if (loader_get_pci_id_for_fd(fd, &vid, &did)) {
+        DBG("PCI info: vendor=0x%04x, device=0x%04x\n",
+            vid, did);
+        *vendorid = vid;
+        *deviceid = did;
+        *subsysid = 0;
+        *revision = 0;
     } else {
-        DBG("Unsupported BusID type.\n");
+        DBG("Unable to detect card. Fake GTX 680.\n");
+        *vendorid = 0x10de; /* NV GTX 680 */
+        *deviceid = 0x1180;
+        *subsysid = 0;
+        *revision = 0;
     }
-
-    FREE(u.unique);
 }
 
 static INLINE void
-- 
2.1.0