On 27/06/2023 16:14, Jani Nikula wrote:
Finally we can get rid of the pseudo-const write-once device info, and
convert it into a const pointer to device info in rodata.
Cc: Matt Roper <matthew.d.roper@xxxxxxxxx>
Cc: Lucas De Marchi <lucas.demarchi@xxxxxxxxx>
Signed-off-by: Jani Nikula <jani.nikula@xxxxxxxxx>
---
drivers/gpu/drm/i915/i915_drv.h | 4 ++--
drivers/gpu/drm/i915/intel_device_info.c | 17 ++++-------------
2 files changed, 6 insertions(+), 15 deletions(-)
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index 8947d1201298..682ef2b5c7d5 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -203,7 +203,7 @@ struct drm_i915_private {
/* i915 device parameters */
struct i915_params params;
- const struct intel_device_info __info; /* Use INTEL_INFO() to access. */
+ const struct intel_device_info *__info; /* Use INTEL_INFO() to access. */
struct intel_runtime_info __runtime; /* Use RUNTIME_INFO() to access. */
struct intel_driver_caps caps;
@@ -415,7 +415,7 @@ static inline struct intel_gt *to_gt(struct drm_i915_private *i915)
(engine__) && (engine__)->uabi_class == (class__); \
(engine__) = rb_to_uabi_engine(rb_next(&(engine__)->uabi_node)))
-#define INTEL_INFO(i915) (&(i915)->__info)
+#define INTEL_INFO(i915) ((i915)->__info)
#define RUNTIME_INFO(i915) (&(i915)->__runtime)
#define DISPLAY_INFO(i915) ((i915)->display.info.__device_info)
#define DISPLAY_RUNTIME_INFO(i915) (&(i915)->display.info.__runtime_info)
diff --git a/drivers/gpu/drm/i915/intel_device_info.c b/drivers/gpu/drm/i915/intel_device_info.c
index 0740922cd71f..ea0ec6174ce5 100644
--- a/drivers/gpu/drm/i915/intel_device_info.c
+++ b/drivers/gpu/drm/i915/intel_device_info.c
@@ -364,13 +364,6 @@ void intel_device_info_runtime_init_early(struct drm_i915_private *i915)
intel_device_info_subplatform_init(i915);
}
-/* FIXME: Remove this, and make device info a const pointer to rodata. */
-static struct intel_device_info *
-mkwrite_device_info(struct drm_i915_private *i915)
-{
- return (struct intel_device_info *)INTEL_INFO(i915);
-}
-
static const struct intel_display_device_info no_display = {};
/**
@@ -430,26 +423,24 @@ void intel_device_info_driver_create(struct drm_i915_private *i915,
u16 device_id,
const struct intel_device_info *match_info)
{
- struct intel_device_info *info;
struct intel_runtime_info *runtime;
u16 ver, rel, step;
- /* Setup the write-once "constant" device info */
- info = mkwrite_device_info(i915);
- memcpy(info, match_info, sizeof(*info));
+ /* Setup INTEL_INFO() */
+ i915->__info = match_info;
/* Initialize initial runtime info from static const data and pdev. */
runtime = RUNTIME_INFO(i915);
memcpy(runtime, &INTEL_INFO(i915)->__runtime, sizeof(*runtime));
/* Probe display support */
- i915->display.info.__device_info = intel_display_device_probe(i915, info->has_gmd_id,
+ i915->display.info.__device_info = intel_display_device_probe(i915, HAS_GMD_ID(i915),
Why does intel_display_device_probe need an explicit has_gmdid when it
could use HAS_GMD_ID itself?
But anyway, LGTM. If it saves you some time before the other time zone
comes online:
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@xxxxxxxxx>
Regards,
Tvrtko
&ver, &rel, &step);
memcpy(DISPLAY_RUNTIME_INFO(i915),
&DISPLAY_INFO(i915)->__runtime_defaults,
sizeof(*DISPLAY_RUNTIME_INFO(i915)));
- if (info->has_gmd_id) {
+ if (HAS_GMD_ID(i915)) {
DISPLAY_RUNTIME_INFO(i915)->ip.ver = ver;
DISPLAY_RUNTIME_INFO(i915)->ip.rel = rel;
DISPLAY_RUNTIME_INFO(i915)->ip.step = step;
