drm/xe/pcode: add struct drm_device based interface

In preparation for dropping the dependency on struct intel_uncore or
struct xe_tile from display code, add a struct drm_device based
interface to pcode.

Cc: Lucas De Marchi <lucas.demarchi@intel.com>
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://lore.kernel.org/r/eeaa9cc8438caab2e22f9cb2142fbc18cc0fd861.1750678991.git.jani.nikula@intel.com
Signed-off-by: Jani Nikula <jani.nikula@intel.com>

1 files changed, 26 insertions, 0 deletions

diff --git a/drivers/gpu/drm/xe/xe_pcode.c b/drivers/gpu/drm/xe/xe_pcode.c
index 9189117fe825..87323ad0cbbb 100644
--- a/drivers/gpu/drm/xe/xe_pcode.c
+++ b/drivers/gpu/drm/xe/xe_pcode.c
@@ -336,3 +336,29 @@ int xe_pcode_probe_early(struct xe_device *xe)
 	return xe_pcode_ready(xe, false);
 }
 ALLOW_ERROR_INJECTION(xe_pcode_probe_early, ERRNO); /* See xe_pci_probe */
+
+/* Helpers with drm device */
+int intel_pcode_read(struct drm_device *drm, u32 mbox, u32 *val, u32 *val1)
+{
+	struct xe_device *xe = to_xe_device(drm);
+	struct xe_tile *tile = xe_device_get_root_tile(xe);
+
+	return xe_pcode_read(tile, mbox, val, val1);
+}
+
+int intel_pcode_write_timeout(struct drm_device *drm, u32 mbox, u32 val, int timeout_ms)
+{
+	struct xe_device *xe = to_xe_device(drm);
+	struct xe_tile *tile = xe_device_get_root_tile(xe);
+
+	return xe_pcode_write_timeout(tile, mbox, val, timeout_ms);
+}
+
+int intel_pcode_request(struct drm_device *drm, u32 mbox, u32 request,
+			u32 reply_mask, u32 reply, int timeout_base_ms)
+{
+	struct xe_device *xe = to_xe_device(drm);
+	struct xe_tile *tile = xe_device_get_root_tile(xe);
+
+	return xe_pcode_request(tile, mbox, request, reply_mask, reply, timeout_base_ms);
+}