[CI v2 09/10] drm/xe/vf: Setup memory based interrupts in GuC

Michal Wajdeczko michal.wajdeczko at intel.com
Mon Dec 18 16:53:43 UTC 2023


When Memory Based Interrupts are used, the VF driver must provide
to the GuC references to the Source and Status Report Pages.

Reviewed-by: Matt Roper <matthew.d.roper at intel.com>
Link: https://lore.kernel.org/r/20231214185955.1791-10-michal.wajdeczko@intel.com
Signed-off-by: Michal Wajdeczko <michal.wajdeczko at intel.com>
---
 drivers/gpu/drm/xe/xe_guc.c | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/drivers/gpu/drm/xe/xe_guc.c b/drivers/gpu/drm/xe/xe_guc.c
index 482cb0df9f15..85096741cb3b 100644
--- a/drivers/gpu/drm/xe/xe_guc.c
+++ b/drivers/gpu/drm/xe/xe_guc.c
@@ -22,8 +22,10 @@
 #include "xe_guc_log.h"
 #include "xe_guc_pc.h"
 #include "xe_guc_submit.h"
+#include "xe_memirq.h"
 #include "xe_mmio.h"
 #include "xe_platform_types.h"
+#include "xe_sriov.h"
 #include "xe_uc.h"
 #include "xe_uc_fw.h"
 #include "xe_wa.h"
@@ -574,10 +576,20 @@ static void guc_enable_irq(struct xe_guc *guc)
 
 int xe_guc_enable_communication(struct xe_guc *guc)
 {
+	struct xe_device *xe = guc_to_xe(guc);
 	int err;
 
 	guc_enable_irq(guc);
 
+	if (IS_SRIOV_VF(xe) && xe_device_has_memirq(xe)) {
+		struct xe_gt *gt = guc_to_gt(guc);
+		struct xe_tile *tile = gt_to_tile(gt);
+
+		err = xe_memirq_init_guc(&tile->sriov.vf.memirq, guc);
+		if (err)
+			return err;
+	}
+
 	xe_mmio_rmw32(guc_to_gt(guc), PMINTRMSK,
 		      ARAT_EXPIRED_INTRMSK, 0);
 
-- 
2.25.1



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