diff options
Diffstat (limited to 'drivers/gpu/drm/i915/i915_params.c')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_params.c | 38 |
1 files changed, 35 insertions, 3 deletions
diff --git a/drivers/gpu/drm/i915/i915_params.c b/drivers/gpu/drm/i915/i915_params.c index 2e0356561839..b5be0abbba35 100644 --- a/drivers/gpu/drm/i915/i915_params.c +++ b/drivers/gpu/drm/i915/i915_params.c @@ -77,7 +77,7 @@ i915_param_named(error_capture, bool, 0600, "triaging and debugging hangs."); #endif -i915_param_named_unsafe(enable_hangcheck, bool, 0644, +i915_param_named_unsafe(enable_hangcheck, bool, 0600, "Periodically check GPU activity for detecting hangs. " "WARNING: Disabling this can cause system wide hangs. " "(default: true)"); @@ -97,8 +97,10 @@ i915_param_named_unsafe(disable_power_well, int, 0400, i915_param_named_unsafe(enable_ips, int, 0600, "Enable IPS (default: true)"); -i915_param_named(fastboot, bool, 0600, - "Try to skip unnecessary mode sets at boot time (default: false)"); +i915_param_named(fastboot, int, 0600, + "Try to skip unnecessary mode sets at boot time " + "(0=disabled, 1=enabled) " + "Default: -1 (use per-chip default)"); i915_param_named_unsafe(prefault_disable, bool, 0600, "Disable page prefaulting for pread/pwrite/reloc (default:false). " @@ -203,3 +205,33 @@ 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 +} + +static __always_inline void free_param(const char *type, void *x) +{ + if (!__builtin_strcmp(type, "char *")) { + kfree(*(void **)x); + *(void **)x = NULL; + } +} + +/* free the allocated members, *not* the passed in params itself */ +void i915_params_free(struct i915_params *params) +{ +#define FREE(T, x, ...) free_param(#T, ¶ms->x); + I915_PARAMS_FOR_EACH(FREE); +#undef FREE +} |