intel/i965: make gen_device_info mutable

Make gen_device_info a mutable structure so we can update the fields that
can be refined by querying the kernel (like subslices and EU numbers).

This patch does not make any functional change, it just makes
gen_get_device_info() fill a structure rather than returning a const
pointer.

Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>

2 files changed, 6 insertions, 7 deletions

diff --git a/src/intel/common/gen_device_info.c b/src/intel/common/gen_device_info.c
index 7f1af19..615605c 100644
--- a/src/intel/common/gen_device_info.c
+++ b/src/intel/common/gen_device_info.c
@@ -487,21 +487,20 @@ static const struct gen_device_info gen_device_info_kbl_gt4 = {
    .num_slices = 3,
 };
 
-const struct gen_device_info *
-gen_get_device_info(int devid)
+const bool
+gen_get_device_info(int devid, struct gen_device_info *devinfo)
 {
-   const struct gen_device_info *devinfo;
    switch (devid) {
 #undef CHIPSET
 #define CHIPSET(id, family, name) \
-   case id: devinfo = &gen_device_info_##family; break;
+      case id: *devinfo = gen_device_info_##family; break;
 #include "pci_ids/i965_pci_ids.h"
    default:
       fprintf(stderr, "i965_dri.so does not support the 0x%x PCI ID.\n", devid);
-      return NULL;
+      return false;
    }
 
-   return devinfo;
+   return true;
 }
 
 const char *
diff --git a/src/intel/common/gen_device_info.h b/src/intel/common/gen_device_info.h
index 6b639d3..8b68a01 100644
--- a/src/intel/common/gen_device_info.h
+++ b/src/intel/common/gen_device_info.h
@@ -143,5 +143,5 @@ struct gen_device_info
    /** @} */
 };
 
-const struct gen_device_info *gen_get_device_info(int devid);
+const bool gen_get_device_info(int devid, struct gen_device_info *devinfo);
 const char *gen_get_device_name(int devid);