[PATCH i-g-t v4 08/17] lib/gpgpu_shader: Allow enabling illegal opcode exceptions in shader

[Christoph Manszewski <christoph.manszewski@intel.com>]

From: Andrzej Hajda <andrzej.hajda@intel.com>

Illegal opcode exceptions can be enabled in interface descriptor data
passed to COMPUTE_WALKER instruction.

Signed-off-by: Andrzej Hajda <andrzej.hajda@intel.com>
Cc: Mika Kuoppala <mika.kuoppala@intel.com>
Cc: Dominik Grzegorzek <dominik.grzegorzek@intel.com>
Acked-by: Dominik Grzegorzek <dominik.grzegorzek@intel.com>
---
 lib/gpgpu_shader.c | 4 ++++
 lib/gpgpu_shader.h | 1 +
 2 files changed, 5 insertions(+)

diff --git a/lib/gpgpu_shader.c b/lib/gpgpu_shader.c
index 1616c1942..4e61a548f 100644
--- a/lib/gpgpu_shader.c
+++ b/lib/gpgpu_shader.c
@@ -103,6 +103,7 @@ __xelp_gpgpu_execfunc(struct intel_bb *ibb,
 		      struct gpgpu_shader *sip,
 		      uint64_t ring, bool explicit_engine)
 {
+	struct gen8_interface_descriptor_data *idd;
 	uint32_t interface_descriptor, sip_offset;
 	uint64_t engine;
 
@@ -113,6 +114,8 @@ __xelp_gpgpu_execfunc(struct intel_bb *ibb,
 	interface_descriptor = gen8_fill_interface_descriptor(ibb, target,
 							      shdr->instr,
 							      4 * shdr->size);
+	idd = intel_bb_ptr_get(ibb, interface_descriptor);
+	idd->desc2.illegal_opcode_exception_enable = shdr->illegal_opcode_exception_enable;
 
 	if (sip && sip->size)
 		sip_offset = fill_sip(ibb, sip->instr, 4 * sip->size);
@@ -163,6 +166,7 @@ __xehp_gpgpu_execfunc(struct intel_bb *ibb,
 
 	xehp_fill_interface_descriptor(ibb, target, shdr->instr,
 				       4 * shdr->size, &idd);
+	idd.desc2.illegal_opcode_exception_enable = shdr->illegal_opcode_exception_enable;
 
 	if (sip && sip->size)
 		sip_offset = fill_sip(ibb, sip->instr, 4 * sip->size);
diff --git a/lib/gpgpu_shader.h b/lib/gpgpu_shader.h
index 0bbeae66f..26a117a0b 100644
--- a/lib/gpgpu_shader.h
+++ b/lib/gpgpu_shader.h
@@ -22,6 +22,7 @@ struct gpgpu_shader {
 		uint32_t (*instr)[4];
 	};
 	struct igt_map *labels;
+	bool illegal_opcode_exception_enable;
 };
 
 struct iga64_template {
-- 
2.34.1