[Intel-xe] [PATCH 2/3] drm/xe: Add skip_guc_pc flag

[Vinay Belgaumkar]

This flag can be used to disable GuC based power management. This
could be used for debug or comparison to host based C6.

Signed-off-by: Vinay Belgaumkar <vinay.belgaumkar at intel.com>
---
 drivers/gpu/drm/xe/xe_device_types.h | 2 ++
 drivers/gpu/drm/xe/xe_pci.c          | 2 ++
 2 files changed, 4 insertions(+)

diff --git a/drivers/gpu/drm/xe/xe_device_types.h b/drivers/gpu/drm/xe/xe_device_types.h
index be11cadccbd4..dd10beb3133a 100644
--- a/drivers/gpu/drm/xe/xe_device_types.h
+++ b/drivers/gpu/drm/xe/xe_device_types.h
@@ -261,6 +261,8 @@ struct xe_device {
 		u8 supports_mmio_ext:1;
 		/** @has_heci_gscfi: device has heci gscfi */
 		u8 has_heci_gscfi:1;
+		/** @skip_guc_pc: Skip GuC based PM feature init */
+		u8 skip_guc_pc:1;
 
 #if IS_ENABLED(CONFIG_DRM_XE_DISPLAY)
 		struct {
diff --git a/drivers/gpu/drm/xe/xe_pci.c b/drivers/gpu/drm/xe/xe_pci.c
index 682ba188e456..2bd00394015d 100644
--- a/drivers/gpu/drm/xe/xe_pci.c
+++ b/drivers/gpu/drm/xe/xe_pci.c
@@ -62,6 +62,7 @@ struct xe_device_desc {
 	u8 has_llc:1;
 	u8 bypass_mtcfg:1;
 	u8 supports_mmio_ext:1;
+	u8 skip_guc_pc:1;
 };
 
 __diag_push();
@@ -590,6 +591,7 @@ static int xe_info_init(struct xe_device *xe,
 	xe->info.has_asid = graphics_desc->has_asid;
 	xe->info.has_flat_ccs = graphics_desc->has_flat_ccs;
 	xe->info.has_range_tlb_invalidation = graphics_desc->has_range_tlb_invalidation;
+	xe->info.skip_guc_pc = desc->skip_guc_pc;
 
 	xe->info.enable_display = IS_ENABLED(CONFIG_DRM_XE_DISPLAY) &&
 				  enable_display &&
-- 
2.38.1