[PATCH v2 3/4] drm/i915/wa: Introduce intel_wa_cpu.c for CPU specific workarounds

[Raag Jadav]

Having similar naming convention in intel-family.h and intel_device_info.h
results in redefinition of a few platforms. Define CPU IDs in its own file
to avoid this.

Signed-off-by: Raag Jadav <raag.jadav at intel.com>
---
 drivers/gpu/drm/i915/Makefile               |  1 +
 drivers/gpu/drm/i915/gt/intel_wa_cpu.c      | 34 +++++++++++++++++++++
 drivers/gpu/drm/i915/gt/intel_workarounds.h |  2 ++
 3 files changed, 37 insertions(+)
 create mode 100644 drivers/gpu/drm/i915/gt/intel_wa_cpu.c

diff --git a/drivers/gpu/drm/i915/Makefile b/drivers/gpu/drm/i915/Makefile
index c63fa2133ccb..1f9b503ab976 100644
--- a/drivers/gpu/drm/i915/Makefile
+++ b/drivers/gpu/drm/i915/Makefile
@@ -121,6 +121,7 @@ gt-y += \
 	gt/intel_timeline.o \
 	gt/intel_tlb.o \
 	gt/intel_wopcm.o \
+	gt/intel_wa_cpu.o \
 	gt/intel_workarounds.o \
 	gt/shmem_utils.o \
 	gt/sysfs_engines.o
diff --git a/drivers/gpu/drm/i915/gt/intel_wa_cpu.c b/drivers/gpu/drm/i915/gt/intel_wa_cpu.c
new file mode 100644
index 000000000000..cbdab13e9db6
--- /dev/null
+++ b/drivers/gpu/drm/i915/gt/intel_wa_cpu.c
@@ -0,0 +1,34 @@
+// SPDX-License-Identifier: MIT
+/*
+ * Copyright © 2024 Intel Corporation
+ *
+ * This file is introduced to avoid platform redefinition from
+ * intel_device_info.h :(
+ */
+
+#include "intel_workarounds.h"
+
+#ifdef CONFIG_X86
+#include <asm/cpu_device_id.h>
+#include <asm/intel-family.h>
+
+static const struct x86_cpu_id wa_cpu_ids[] = {
+	X86_MATCH_VFM(INTEL_ALDERLAKE,		NULL),
+	X86_MATCH_VFM(INTEL_ALDERLAKE_L,	NULL),
+	X86_MATCH_VFM(INTEL_COMETLAKE,		NULL),
+	X86_MATCH_VFM(INTEL_KABYLAKE,		NULL),
+	X86_MATCH_VFM(INTEL_KABYLAKE_L,		NULL),
+	X86_MATCH_VFM(INTEL_RAPTORLAKE,		NULL),
+	X86_MATCH_VFM(INTEL_RAPTORLAKE_P,	NULL),
+	X86_MATCH_VFM(INTEL_RAPTORLAKE_S,	NULL),
+	X86_MATCH_VFM(INTEL_ROCKETLAKE,		NULL),
+	{}
+};
+
+bool intel_match_wa_cpu(void)
+{
+	return x86_match_cpu(wa_cpu_ids);
+}
+#else
+bool intel_match_wa_cpu(void) { return false; }
+#endif
diff --git a/drivers/gpu/drm/i915/gt/intel_workarounds.h b/drivers/gpu/drm/i915/gt/intel_workarounds.h
index 9beaab77c7f0..12f24fb31363 100644
--- a/drivers/gpu/drm/i915/gt/intel_workarounds.h
+++ b/drivers/gpu/drm/i915/gt/intel_workarounds.h
@@ -21,6 +21,8 @@ static inline void intel_wa_list_free(struct i915_wa_list *wal)
 	memset(wal, 0, sizeof(*wal));
 }
 
+bool intel_match_wa_cpu(void);
+
 void intel_engine_init_ctx_wa(struct intel_engine_cs *engine);
 int intel_engine_emit_ctx_wa(struct i915_request *rq);
 
-- 
2.34.1