From: Ben Skeggs Date: Thu, 20 Aug 2015 04:54:11 +0000 (+1000) Subject: drm/nouveau/core: type-safe printk macros X-Git-Tag: firefly_0821_release~176^2~1083^2^2~166 X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=6594363b9f765e569feb6222d7d07e19db3fa460;p=firefly-linux-kernel-4.4.55.git drm/nouveau/core: type-safe printk macros These require an explicit pointers to nvkm_object/nvkm_subdev/nvkm_device, depending on which macros are used. This is unlike the previous macros which take a void *, and work for anything derived from nvkm_object (by way of some awful heuristics). The output will be a bit confused until everything has been transitioned, as the logging format used is a more standard style that previously. In addition, usage of pr_cont(), which doesn't work correctly with the dev_*() printk functions (and was potentially racy to begin with), will be replaced. Signed-off-by: Ben Skeggs --- diff --git a/drivers/gpu/drm/nouveau/include/nvkm/core/client.h b/drivers/gpu/drm/nouveau/include/nvkm/core/client.h index a35b38244502..bcd2a3583651 100644 --- a/drivers/gpu/drm/nouveau/include/nvkm/core/client.h +++ b/drivers/gpu/drm/nouveau/include/nvkm/core/client.h @@ -52,4 +52,16 @@ int nvkm_client_notify_new(struct nvkm_object *, struct nvkm_event *, int nvkm_client_notify_del(struct nvkm_client *, int index); int nvkm_client_notify_get(struct nvkm_client *, int index); int nvkm_client_notify_put(struct nvkm_client *, int index); + +/* logging for client-facing objects */ +#define nvif_printk(o,l,p,f,a...) do { \ + struct nvkm_object *_object = (o); \ + struct nvkm_client *_client = nvkm_client(_object); \ + if (_client->debug >= NV_DBG_##l) \ + printk(KERN_##p "nouveau: %s: "f, _client->name, ##a); \ +} while(0) +#define nvif_error(o,f,a...) nvif_printk((o), ERROR, ERR, f, ##a) +#define nvif_debug(o,f,a...) nvif_printk((o), DEBUG, INFO, f, ##a) +#define nvif_trace(o,f,a...) nvif_printk((o), TRACE, INFO, f, ##a) +#define nvif_ioctl(o,f,a...) nvif_trace((o), "ioctl: "f, ##a) #endif diff --git a/drivers/gpu/drm/nouveau/include/nvkm/core/device.h b/drivers/gpu/drm/nouveau/include/nvkm/core/device.h index 14f7d197e479..ffff6fd5a348 100644 --- a/drivers/gpu/drm/nouveau/include/nvkm/core/device.h +++ b/drivers/gpu/drm/nouveau/include/nvkm/core/device.h @@ -214,4 +214,19 @@ enum nv_bus_type { int nvkm_device_create_(void *, enum nv_bus_type type, u64 name, const char *sname, const char *cfg, const char *dbg, int, void **); + +/* device logging */ +#define nvdev_printk_(d,l,p,f,a...) do { \ + struct nvkm_device *_device = (d); \ + if (_device->engine.subdev.debug >= (l)) \ + dev_##p(_device->dev, f, ##a); \ +} while(0) +#define nvdev_printk(d,l,p,f,a...) nvdev_printk_((d), NV_DBG_##l, p, f, ##a) +#define nvdev_fatal(d,f,a...) nvdev_printk((d), FATAL, crit, f, ##a) +#define nvdev_error(d,f,a...) nvdev_printk((d), ERROR, err, f, ##a) +#define nvdev_warn(d,f,a...) nvdev_printk((d), WARN, notice, f, ##a) +#define nvdev_info(d,f,a...) nvdev_printk((d), INFO, info, f, ##a) +#define nvdev_debug(d,f,a...) nvdev_printk((d), DEBUG, info, f, ##a) +#define nvdev_trace(d,f,a...) nvdev_printk((d), TRACE, info, f, ##a) +#define nvdev_spam(d,f,a...) nvdev_printk((d), SPAM, dbg, f, ##a) #endif diff --git a/drivers/gpu/drm/nouveau/include/nvkm/core/enum.h b/drivers/gpu/drm/nouveau/include/nvkm/core/enum.h index e76f76f115e9..573b1eef4b39 100644 --- a/drivers/gpu/drm/nouveau/include/nvkm/core/enum.h +++ b/drivers/gpu/drm/nouveau/include/nvkm/core/enum.h @@ -18,4 +18,5 @@ struct nvkm_bitfield { }; void nvkm_bitfield_print(const struct nvkm_bitfield *, u32 value); +void nvkm_snprintbf(char *, int, const struct nvkm_bitfield *, u32 value); #endif diff --git a/drivers/gpu/drm/nouveau/include/nvkm/core/subdev.h b/drivers/gpu/drm/nouveau/include/nvkm/core/subdev.h index ad516cf24f6c..e146f2758b07 100644 --- a/drivers/gpu/drm/nouveau/include/nvkm/core/subdev.h +++ b/drivers/gpu/drm/nouveau/include/nvkm/core/subdev.h @@ -11,7 +11,7 @@ struct nvkm_subdev { struct nvkm_device *device; struct mutex mutex; - const char *name; + const char *name, *sname; u32 debug; u32 unit; @@ -53,11 +53,20 @@ void _nvkm_subdev_dtor(struct nvkm_object *); int _nvkm_subdev_init(struct nvkm_object *); int _nvkm_subdev_fini(struct nvkm_object *, bool suspend); -#define s_printk(s,l,f,a...) do { \ - if ((s)->debug >= OS_DBG_##l) { \ - nv_printk((s)->base.parent, (s)->name, l, f, ##a); \ - } \ +/* subdev logging */ +#define nvkm_printk_(s,l,p,f,a...) do { \ + struct nvkm_subdev *_subdev = (s); \ + if (_subdev->debug >= (l)) \ + dev_##p(_subdev->device->dev, "%s: "f, _subdev->sname, ##a); \ } while(0) +#define nvkm_printk(s,l,p,f,a...) nvkm_printk_((s), NV_DBG_##l, p, f, ##a) +#define nvkm_fatal(s,f,a...) nvkm_printk((s), FATAL, crit, f, ##a) +#define nvkm_error(s,f,a...) nvkm_printk((s), ERROR, err, f, ##a) +#define nvkm_warn(s,f,a...) nvkm_printk((s), WARN, notice, f, ##a) +#define nvkm_info(s,f,a...) nvkm_printk((s), INFO, info, f, ##a) +#define nvkm_debug(s,f,a...) nvkm_printk((s), DEBUG, info, f, ##a) +#define nvkm_trace(s,f,a...) nvkm_printk((s), TRACE, info, f, ##a) +#define nvkm_spam(s,f,a...) nvkm_printk((s), SPAM, dbg, f, ##a) #include #endif diff --git a/drivers/gpu/drm/nouveau/nvkm/core/enum.c b/drivers/gpu/drm/nouveau/nvkm/core/enum.c index 4f92bfc13d6b..2cfaec406194 100644 --- a/drivers/gpu/drm/nouveau/nvkm/core/enum.c +++ b/drivers/gpu/drm/nouveau/nvkm/core/enum.c @@ -64,3 +64,20 @@ nvkm_bitfield_print(const struct nvkm_bitfield *bf, u32 value) if (value) pr_cont(" (unknown bits 0x%08x)", value); } + +void +nvkm_snprintbf(char *data, int size, const struct nvkm_bitfield *bf, u32 value) +{ + bool space = false; + while (size >= 1 && bf->name) { + if (value & bf->mask) { + int this = snprintf(data, size, "%s%s", + space ? " " : "", bf->name); + size -= this; + data += this; + space = true; + } + bf++; + } + data[0] = '\0'; +} diff --git a/drivers/gpu/drm/nouveau/nvkm/core/subdev.c b/drivers/gpu/drm/nouveau/nvkm/core/subdev.c index dd2cf44bd6a1..476add5a4aea 100644 --- a/drivers/gpu/drm/nouveau/nvkm/core/subdev.c +++ b/drivers/gpu/drm/nouveau/nvkm/core/subdev.c @@ -111,6 +111,7 @@ nvkm_subdev_create_(struct nvkm_object *parent, struct nvkm_object *engine, __mutex_init(&subdev->mutex, subname, &oclass->lock_class_key); subdev->name = subname; + subdev->sname = sysname; if (parent) { struct nvkm_device *device = nv_device(parent);