drm/radeon: add get_allowed_info_register for EG/BTC
Registers that can be fetched from the info ioctl.
Tested-by: Marek Olšák <marek.olsak@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
diff --git a/drivers/gpu/drm/radeon/evergreen.c b/drivers/gpu/drm/radeon/evergreen.c
index 973df06..21cbd2e 100644
--- a/drivers/gpu/drm/radeon/evergreen.c
+++ b/drivers/gpu/drm/radeon/evergreen.c
@@ -1006,6 +1006,34 @@
}
}
+/**
+ * evergreen_get_allowed_info_register - fetch the register for the info ioctl
+ *
+ * @rdev: radeon_device pointer
+ * @reg: register offset in bytes
+ * @val: register value
+ *
+ * Returns 0 for success or -EINVAL for an invalid register
+ *
+ */
+int evergreen_get_allowed_info_register(struct radeon_device *rdev,
+ u32 reg, u32 *val)
+{
+ switch (reg) {
+ case GRBM_STATUS:
+ case GRBM_STATUS_SE0:
+ case GRBM_STATUS_SE1:
+ case SRBM_STATUS:
+ case SRBM_STATUS2:
+ case DMA_STATUS_REG:
+ case UVD_STATUS:
+ *val = RREG32(reg);
+ return 0;
+ default:
+ return -EINVAL;
+ }
+}
+
void evergreen_tiling_fields(unsigned tiling_flags, unsigned *bankw,
unsigned *bankh, unsigned *mtaspect,
unsigned *tile_split)