msm: kgsl: Establish a standard GPU ID scheme for the KGSL core
Establish a standard generic format for a GPU ID in the KGSL core:
[0:15] - GPU specific identifier
[16:31] - 0x0002 for 2D or 0x0003 for 3D
Add a KGSL core function to get the GPU ID from the devices and
GPU specific functions to return them. For Z180, the ID will be
0x0002000B4 (0xB4 = 180). For 3D, the ID will be 0x00030000 ORed
with the GPU identifier (anywhere from 205 to 225).
Change-Id: Ic0dedbadddb3f587121913b9c226e2bda466f84e
Signed-off-by: Jordan Crouse <jcrouse@codeaurora.org>
diff --git a/drivers/gpu/msm/z180.c b/drivers/gpu/msm/z180.c
index 8413fc4..cf74e64 100644
--- a/drivers/gpu/msm/z180.c
+++ b/drivers/gpu/msm/z180.c
@@ -888,6 +888,16 @@
}
}
+static unsigned int z180_gpuid(struct kgsl_device *device)
+{
+ /* Standard KGSL gpuid format:
+ * top word is 0x0002 for 2D or 0x0003 for 3D
+ * Bottom word is core specific identifer
+ */
+
+ return (0x0002 << 16) | 180;
+}
+
static const struct kgsl_functable z180_functable = {
/* Mandatory functions */
.regread = z180_regread,
@@ -905,6 +915,7 @@
.cleanup_pt = z180_cleanup_pt,
.power_stats = z180_power_stats,
.irqctrl = z180_irqctrl,
+ .gpuid = z180_gpuid,
/* Optional functions */
.drawctxt_create = NULL,
.drawctxt_destroy = z180_drawctxt_destroy,