From: Michal Wajdeczko Date: Tue, 19 Dec 2017 11:43:46 +0000 (+0000) Subject: drm/i915: Add pretty printer for modparams X-Git-Tag: v4.19~298^2~46^2~884 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=acfb9973a0d1e5dd14c40464d9a20945cd2ac02e;p=platform%2Fkernel%2Flinux-rpi3.git drm/i915: Add pretty printer for modparams We dump modparams in few places (debugfs, gpu_error) using different functions. Lets add reusable function to avoid code duplication. add/remove: 1/0 grow/shrink: 0/2 up/down: 1096/-2339 (-1243) Function old new delta i915_params_dump - 1096 +1096 i915_capabilities 1353 185 -1168 i915_error_state_to_str 5507 4336 -1171 Total: Before=1285716, After=1284473, chg -0.10% v2: use forward decl rather than include (Chris) Signed-off-by: Michal Wajdeczko Cc: Chris Wilson Reviewed-by: Chris Wilson Signed-off-by: Chris Wilson Link: https://patchwork.freedesktop.org/patch/msgid/20171219114346.26308-3-michal.wajdeczko@intel.com --- diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c index e384e28..c4780f0 100644 --- a/drivers/gpu/drm/i915/i915_debugfs.c +++ b/drivers/gpu/drm/i915/i915_debugfs.c @@ -37,23 +37,6 @@ static inline struct drm_i915_private *node_to_i915(struct drm_info_node *node) return to_i915(node->minor->dev); } -static __always_inline void seq_print_param(struct seq_file *m, - const char *name, - const char *type, - const void *x) -{ - if (!__builtin_strcmp(type, "bool")) - seq_printf(m, "i915.%s=%s\n", name, yesno(*(const bool *)x)); - else if (!__builtin_strcmp(type, "int")) - seq_printf(m, "i915.%s=%d\n", name, *(const int *)x); - else if (!__builtin_strcmp(type, "unsigned int")) - seq_printf(m, "i915.%s=%u\n", name, *(const unsigned int *)x); - else if (!__builtin_strcmp(type, "char *")) - seq_printf(m, "i915.%s=%s\n", name, *(const char **)x); - else - BUILD_BUG(); -} - static int i915_capabilities(struct seq_file *m, void *data) { struct drm_i915_private *dev_priv = node_to_i915(m->private); @@ -67,9 +50,7 @@ static int i915_capabilities(struct seq_file *m, void *data) intel_device_info_dump_flags(info, &p); kernel_param_lock(THIS_MODULE); -#define PRINT_PARAM(T, x, ...) seq_print_param(m, #x, #T, &i915_modparams.x); - I915_PARAMS_FOR_EACH(PRINT_PARAM); -#undef PRINT_PARAM + i915_params_dump(&i915_modparams, &p); kernel_param_unlock(THIS_MODULE); return 0; diff --git a/drivers/gpu/drm/i915/i915_gpu_error.c b/drivers/gpu/drm/i915/i915_gpu_error.c index 664f55c..84831e9 100644 --- a/drivers/gpu/drm/i915/i915_gpu_error.c +++ b/drivers/gpu/drm/i915/i915_gpu_error.c @@ -569,29 +569,12 @@ static void err_print_capabilities(struct drm_i915_error_state_buf *m, intel_device_info_dump_flags(info, &p); } -static __always_inline void err_print_param(struct drm_i915_error_state_buf *m, - const char *name, - const char *type, - const void *x) -{ - if (!__builtin_strcmp(type, "bool")) - err_printf(m, "i915.%s=%s\n", name, yesno(*(const bool *)x)); - else if (!__builtin_strcmp(type, "int")) - err_printf(m, "i915.%s=%d\n", name, *(const int *)x); - else if (!__builtin_strcmp(type, "unsigned int")) - err_printf(m, "i915.%s=%u\n", name, *(const unsigned int *)x); - else if (!__builtin_strcmp(type, "char *")) - err_printf(m, "i915.%s=%s\n", name, *(const char **)x); - else - BUILD_BUG(); -} - static void err_print_params(struct drm_i915_error_state_buf *m, - const struct i915_params *p) + const struct i915_params *params) { -#define PRINT(T, x, ...) err_print_param(m, #x, #T, &p->x); - I915_PARAMS_FOR_EACH(PRINT); -#undef PRINT + struct drm_printer p = i915_error_printer(m); + + i915_params_dump(params, &p); } static void err_print_pciid(struct drm_i915_error_state_buf *m, diff --git a/drivers/gpu/drm/i915/i915_params.c b/drivers/gpu/drm/i915/i915_params.c index 8dfea03..b5f3eb4 100644 --- a/drivers/gpu/drm/i915/i915_params.c +++ b/drivers/gpu/drm/i915/i915_params.c @@ -22,6 +22,8 @@ * IN THE SOFTWARE. */ +#include + #include "i915_params.h" #include "i915_drv.h" @@ -172,3 +174,34 @@ i915_param_named(enable_dpcd_backlight, bool, 0600, i915_param_named(enable_gvt, bool, 0400, "Enable support for Intel GVT-g graphics virtualization host support(default:false)"); + +static __always_inline void _print_param(struct drm_printer *p, + const char *name, + const char *type, + const void *x) +{ + if (!__builtin_strcmp(type, "bool")) + drm_printf(p, "i915.%s=%s\n", name, yesno(*(const bool *)x)); + else if (!__builtin_strcmp(type, "int")) + drm_printf(p, "i915.%s=%d\n", name, *(const int *)x); + else if (!__builtin_strcmp(type, "unsigned int")) + drm_printf(p, "i915.%s=%u\n", name, *(const unsigned int *)x); + else if (!__builtin_strcmp(type, "char *")) + drm_printf(p, "i915.%s=%s\n", name, *(const char **)x); + else + BUILD_BUG(); +} + +/** + * i915_params_dump - dump i915 modparams + * @params: i915 modparams + * @p: the &drm_printer + * + * Pretty printer for i915 modparams. + */ +void i915_params_dump(const struct i915_params *params, struct drm_printer *p) +{ +#define PRINT(T, x, ...) _print_param(p, #x, #T, ¶ms->x); + I915_PARAMS_FOR_EACH(PRINT); +#undef PRINT +} diff --git a/drivers/gpu/drm/i915/i915_params.h b/drivers/gpu/drm/i915/i915_params.h index 792ce26..c963603 100644 --- a/drivers/gpu/drm/i915/i915_params.h +++ b/drivers/gpu/drm/i915/i915_params.h @@ -28,6 +28,8 @@ #include #include /* for __read_mostly */ +struct drm_printer; + #define ENABLE_GUC_SUBMISSION BIT(0) #define ENABLE_GUC_LOAD_HUC BIT(1) @@ -77,5 +79,7 @@ struct i915_params { extern struct i915_params i915_modparams __read_mostly; +void i915_params_dump(const struct i915_params *params, struct drm_printer *p); + #endif