drm/xe: add xe_device_wa infrastructure

There are some workarounds that must be appplied before gt init,
wa_15015404425 for example. Instead of sprinking them conditionally
throughout the driver as we did for i915 generate an oob.rules file
reusing the RTP infrastructure to make these easier to track.

v2: rename xe_soc_wa to xe_device_wa
v5: derive prefix from argument rather than hard coding the values.
v6: split out xe_gen-wa_oob changes

Signed-off-by: Matt Atwood <matthew.s.atwood@intel.com>
Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com>
Link: https://lore.kernel.org/r/20250709221605.172516-3-matthew.s.atwood@intel.com
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>

diff --git a/drivers/gpu/drm/xe/Makefile b/drivers/gpu/drm/xe/Makefile
index d52cf5808d6fb75ed79115159ac6b5a423abb13e..83a36c47a2f9f8845126725254210d577ebc3f16 100644 (file)
--- a/drivers/gpu/drm/xe/Makefile
+++ b/drivers/gpu/drm/xe/Makefile
@@ -21,6 +21,13 @@ $(obj)/generated/%_wa_oob.c $(obj)/generated/%_wa_oob.h: $(obj)/xe_gen_wa_oob \
                 $(src)/xe_wa_oob.rules
        $(call cmd,wa_oob)
 
+generated_device_oob := $(obj)/generated/xe_device_wa_oob.c $(obj)/generated/xe_device_wa_oob.h
+quiet_cmd_device_wa_oob = GEN  $(notdir $(generated_device_oob))
+      cmd_device_wa_oob = mkdir -p $(@D); $^ $(generated_device_oob)
+$(obj)/generated/%_device_wa_oob.c $(obj)/generated/%_device_wa_oob.h: $(obj)/xe_gen_wa_oob \
+                $(src)/xe_device_wa_oob.rules
+       $(call cmd,device_wa_oob)
+
 # Please keep these build lists sorted!
 
 # core driver code
@@ -340,4 +347,4 @@ $(obj)/%.hdrtest: $(src)/%.h FORCE
        $(call if_changed_dep,hdrtest)
 
 uses_generated_oob := $(addprefix $(obj)/, $(xe-y))
-$(uses_generated_oob): $(obj)/generated/xe_wa_oob.h
+$(uses_generated_oob): $(obj)/generated/xe_wa_oob.h $(obj)/generated/xe_device_wa_oob.h

diff --git a/drivers/gpu/drm/xe/xe_device_wa_oob.rules b/drivers/gpu/drm/xe/xe_device_wa_oob.rules
new file mode 100644 (file)
index 0000000..e69de29