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drm/i915: add a helper to make a copy of i915_params

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Abstract the one user in anticipation of more.

Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/c6a94b4da8dc723df025b1f602fe46d76d00d53f.1545920737.git.jani.nikula@intel.com
This commit is contained in:
Jani Nikula 2018-12-27 16:33:37 +02:00
parent caa5915bb3
commit 4081cef923
3 changed files with 16 additions and 10 deletions
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11
drivers/gpu/drm/i915/i915_gpu_error.c
View File

@ -1834,18 +1834,9 @@ static void capture_gen_state(struct i915_gpu_state *error)
error->driver_caps = i915->caps;
}
static __always_inline void dup_param(const char *type, void *x)
{
if (!__builtin_strcmp(type, "char *"))
*(void **)x = kstrdup(*(void **)x, GFP_ATOMIC);
}
static void capture_params(struct i915_gpu_state *error)
{
error->params = i915_modparams;
#define DUP(T, x, ...) dup_param(#T, &error->params.x);
I915_PARAMS_FOR_EACH(DUP);
#undef DUP
i915_params_copy(&error->params, &i915_modparams);
}
static unsigned long capture_find_epoch(const struct i915_gpu_state *error)

14
drivers/gpu/drm/i915/i915_params.c
View File

@ -203,3 +203,17 @@ void i915_params_dump(const struct i915_params *params, struct drm_printer *p)
I915_PARAMS_FOR_EACH(PRINT);
#undef PRINT
}
static __always_inline void dup_param(const char *type, void *x)
{
if (!__builtin_strcmp(type, "char *"))
*(void **)x = kstrdup(*(void **)x, GFP_ATOMIC);
}
void i915_params_copy(struct i915_params *dest, const struct i915_params *src)
{
*dest = *src;
#define DUP(T, x, ...) dup_param(#T, &dest->x);
I915_PARAMS_FOR_EACH(DUP);
#undef DUP
}

1
drivers/gpu/drm/i915/i915_params.h
View File

@ -78,6 +78,7 @@ struct i915_params {
extern struct i915_params i915_modparams __read_mostly;
void i915_params_dump(const struct i915_params *params, struct drm_printer *p);
void i915_params_copy(struct i915_params *dest, const struct i915_params *src);
#endif