i965: Move device info initialization to common code

With perf queries, initializing the device info is much more complex
than just getting a PCI ID and calling gen_get_device_info.  This commit
adds a new gen_get_device_info_from_fd helper in common code which does
all of the requisite kernel queries to get device info including all of
the topology information.

Reviewed-by: Kenneth Graunke <[email protected]>
Reviewed-by: Lionel Landwerlin <[email protected]>

1 files changed, 4 insertions, 32 deletions

diff --git a/src/mesa/drivers/dri/i965/intel_screen.c b/src/mesa/drivers/dri/i965/intel_screen.c
index 2bc2e41178d..6c4d7c5be27 100644
--- a/src/mesa/drivers/dri/i965/intel_screen.c
+++ b/src/mesa/drivers/dri/i965/intel_screen.c
@@ -2413,28 +2413,6 @@ set_max_gl_versions(struct intel_screen *screen)
    }
 }
 
-/**
- * Return the revision (generally the revid field of the PCI header) of the
- * graphics device.
- */
-static int
-intel_device_get_revision(int fd)
-{
-   struct drm_i915_getparam gp;
-   int revision;
-   int ret;
-
-   memset(&gp, 0, sizeof(gp));
-   gp.param = I915_PARAM_REVISION;
-   gp.value = &revision;
-
-   ret = drmCommandWriteRead(fd, DRM_I915_GETPARAM, &gp, sizeof(gp));
-   if (ret)
-      revision = -1;
-
-   return revision;
-}
-
 static void
 shader_debug_log_mesa(void *data, const char *fmt, ...)
 {
@@ -2513,22 +2491,16 @@ __DRIconfig **intelInitScreen2(__DRIscreen *dri_screen)
    screen->driScrnPriv = dri_screen;
    dri_screen->driverPrivate = (void *) screen;
 
-   screen->deviceID = gen_get_pci_device_id_override();
-   if (screen->deviceID < 0)
-      screen->deviceID = intel_get_integer(screen, I915_PARAM_CHIPSET_ID);
-   else
-      screen->no_hw = true;
-
-   if (!gen_get_device_info(screen->deviceID, &screen->devinfo))
+   if (!gen_get_device_info_from_fd(dri_screen->fd, &screen->devinfo))
       return NULL;
 
-   screen->devinfo.revision = intel_device_get_revision(dri_screen->fd);
+   const struct gen_device_info *devinfo = &screen->devinfo;
+   screen->deviceID = devinfo->chipset_id;
+   screen->no_hw = devinfo->no_hw;
 
    if (!intel_init_bufmgr(screen))
        return NULL;
 
-   const struct gen_device_info *devinfo = &screen->devinfo;
-
    brw_process_intel_debug_variable();
 
    if ((INTEL_DEBUG & DEBUG_SHADER_TIME) && devinfo->gen < 7) {