[PATCH 03/10] drm/xe: Define registers used by memory based irq processing

Michal Wajdeczko michal.wajdeczko at intel.com
Tue Dec 12 21:00:47 UTC 2023


The RING_INT_SRC_RPT_PTR register points to a cacheline in memory
to which an engine must report as source of interrupt prior to
generating an interrupt to the host.

The RING_INT_STATUS_RPT_PTR register points to the first cacheline
of the Interrupt Status Report (ISR) page (4KB) in graphics memory
to which all engines report their interrupt status.

The RING_IMR register has the interrupt enables and interrupt masks
for an engine.

We will refer to these registers shortly.

Bspec: 45963, 45964, 45965
Signed-off-by: Michal Wajdeczko <michal.wajdeczko at intel.com>
---
 drivers/gpu/drm/xe/regs/xe_engine_regs.h | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/gpu/drm/xe/regs/xe_engine_regs.h b/drivers/gpu/drm/xe/regs/xe_engine_regs.h
index 3942db268b01..5e15c707e017 100644
--- a/drivers/gpu/drm/xe/regs/xe_engine_regs.h
+++ b/drivers/gpu/drm/xe/regs/xe_engine_regs.h
@@ -39,8 +39,10 @@
 #define RING_MI_MODE(base)			XE_REG((base) + 0x9c)
 #define RING_NOPID(base)			XE_REG((base) + 0x94)
 
+#define RING_INT_SRC_RPT_PTR(base)		XE_REG((base) + 0xa4)
 #define RING_IMR(base)				XE_REG((base) + 0xa8)
 #define   RING_MAX_NONPRIV_SLOTS  12
+#define RING_INT_STATUS_RPT_PTR(base)		XE_REG((base) + 0xac)
 
 #define RING_EIR(base)				XE_REG((base) + 0xb0)
 #define RING_EMR(base)				XE_REG((base) + 0xb4)
-- 
2.25.1



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