Add helper to check if a drm debug category is enabled. Convert drm core to use it. No functional changes.
v2: Move unlikely() to drm_debug_enabled() (Eric)
v3: Keep unlikely() when combined with other conditions (Eric)
Cc: Eric Engestrom eric@engestrom.ch Acked-by: Alex Deucher alexander.deucher@amd.com Signed-off-by: Jani Nikula jani.nikula@intel.com --- drivers/gpu/drm/drm_atomic_uapi.c | 2 +- drivers/gpu/drm/drm_dp_mst_topology.c | 6 +++--- drivers/gpu/drm/drm_edid.c | 2 +- drivers/gpu/drm/drm_edid_load.c | 2 +- drivers/gpu/drm/drm_mipi_dbi.c | 4 ++-- drivers/gpu/drm/drm_print.c | 4 ++-- drivers/gpu/drm/drm_vblank.c | 6 +++--- include/drm/drm_print.h | 5 +++++ 8 files changed, 18 insertions(+), 13 deletions(-)
diff --git a/drivers/gpu/drm/drm_atomic_uapi.c b/drivers/gpu/drm/drm_atomic_uapi.c index 7a26bfb5329c..0d466d3b0809 100644 --- a/drivers/gpu/drm/drm_atomic_uapi.c +++ b/drivers/gpu/drm/drm_atomic_uapi.c @@ -1405,7 +1405,7 @@ int drm_mode_atomic_ioctl(struct drm_device *dev, } else if (arg->flags & DRM_MODE_ATOMIC_NONBLOCK) { ret = drm_atomic_nonblocking_commit(state); } else { - if (unlikely(drm_debug & DRM_UT_STATE)) + if (drm_debug_enabled(DRM_UT_STATE)) drm_atomic_print_state(state);
ret = drm_atomic_commit(state); diff --git a/drivers/gpu/drm/drm_dp_mst_topology.c b/drivers/gpu/drm/drm_dp_mst_topology.c index e6801db54d0f..6b14b63b8d62 100644 --- a/drivers/gpu/drm/drm_dp_mst_topology.c +++ b/drivers/gpu/drm/drm_dp_mst_topology.c @@ -1179,7 +1179,7 @@ static int drm_dp_mst_wait_tx_reply(struct drm_dp_mst_branch *mstb, } } out: - if (unlikely(ret == -EIO && drm_debug & DRM_UT_DP)) { + if (unlikely(ret == -EIO) && drm_debug_enabled(DRM_UT_DP)) { struct drm_printer p = drm_debug_printer(DBG_PREFIX);
drm_dp_mst_dump_sideband_msg_tx(&p, txmsg); @@ -2322,7 +2322,7 @@ static int process_single_tx_qlock(struct drm_dp_mst_topology_mgr *mgr, idx += tosend + 1;
ret = drm_dp_send_sideband_msg(mgr, up, chunk, idx); - if (unlikely(ret && drm_debug & DRM_UT_DP)) { + if (unlikely(ret) && drm_debug_enabled(DRM_UT_DP)) { struct drm_printer p = drm_debug_printer(DBG_PREFIX);
drm_printf(&p, "sideband msg failed to send\n"); @@ -2389,7 +2389,7 @@ static void drm_dp_queue_down_tx(struct drm_dp_mst_topology_mgr *mgr, mutex_lock(&mgr->qlock); list_add_tail(&txmsg->next, &mgr->tx_msg_downq);
- if (unlikely(drm_debug & DRM_UT_DP)) { + if (drm_debug_enabled(DRM_UT_DP)) { struct drm_printer p = drm_debug_printer(DBG_PREFIX);
drm_dp_mst_dump_sideband_msg_tx(&p, txmsg); diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c index 3c9703b08491..0552175313cb 100644 --- a/drivers/gpu/drm/drm_edid.c +++ b/drivers/gpu/drm/drm_edid.c @@ -1651,7 +1651,7 @@ static void connector_bad_edid(struct drm_connector *connector, { int i;
- if (connector->bad_edid_counter++ && !(drm_debug & DRM_UT_KMS)) + if (connector->bad_edid_counter++ && !drm_debug_enabled(DRM_UT_KMS)) return;
dev_warn(connector->dev->dev, diff --git a/drivers/gpu/drm/drm_edid_load.c b/drivers/gpu/drm/drm_edid_load.c index d38b3b255926..37d8ba3ddb46 100644 --- a/drivers/gpu/drm/drm_edid_load.c +++ b/drivers/gpu/drm/drm_edid_load.c @@ -175,7 +175,7 @@ static void *edid_load(struct drm_connector *connector, const char *name, u8 *edid; int fwsize, builtin; int i, valid_extensions = 0; - bool print_bad_edid = !connector->bad_edid_counter || (drm_debug & DRM_UT_KMS); + bool print_bad_edid = !connector->bad_edid_counter || drm_debug_enabled(DRM_UT_KMS);
builtin = match_string(generic_edid_name, GENERIC_EDIDS, name); if (builtin >= 0) { diff --git a/drivers/gpu/drm/drm_mipi_dbi.c b/drivers/gpu/drm/drm_mipi_dbi.c index f8154316a3b0..ccfb5b33c5e3 100644 --- a/drivers/gpu/drm/drm_mipi_dbi.c +++ b/drivers/gpu/drm/drm_mipi_dbi.c @@ -783,7 +783,7 @@ static int mipi_dbi_spi1e_transfer(struct mipi_dbi *dbi, int dc, int i, ret; u8 *dst;
- if (drm_debug & DRM_UT_DRIVER) + if (drm_debug_enabled(DRM_UT_DRIVER)) pr_debug("[drm:%s] dc=%d, max_chunk=%zu, transfers:\n", __func__, dc, max_chunk);
@@ -907,7 +907,7 @@ static int mipi_dbi_spi1_transfer(struct mipi_dbi *dbi, int dc, max_chunk = dbi->tx_buf9_len; dst16 = dbi->tx_buf9;
- if (drm_debug & DRM_UT_DRIVER) + if (drm_debug_enabled(DRM_UT_DRIVER)) pr_debug("[drm:%s] dc=%d, max_chunk=%zu, transfers:\n", __func__, dc, max_chunk);
diff --git a/drivers/gpu/drm/drm_print.c b/drivers/gpu/drm/drm_print.c index 1ade3a917c10..9a25d73c155c 100644 --- a/drivers/gpu/drm/drm_print.c +++ b/drivers/gpu/drm/drm_print.c @@ -262,7 +262,7 @@ void drm_dev_dbg(const struct device *dev, unsigned int category, struct va_format vaf; va_list args;
- if (!(drm_debug & category)) + if (!drm_debug_enabled(category)) return;
va_start(args, format); @@ -285,7 +285,7 @@ void drm_dbg(unsigned int category, const char *format, ...) struct va_format vaf; va_list args;
- if (!(drm_debug & category)) + if (!drm_debug_enabled(category)) return;
va_start(args, format); diff --git a/drivers/gpu/drm/drm_vblank.c b/drivers/gpu/drm/drm_vblank.c index 9c6899758bc9..4f7962b6427b 100644 --- a/drivers/gpu/drm/drm_vblank.c +++ b/drivers/gpu/drm/drm_vblank.c @@ -332,7 +332,7 @@ u64 drm_crtc_accurate_vblank_count(struct drm_crtc *crtc) u64 vblank; unsigned long flags;
- WARN_ONCE(drm_debug & DRM_UT_VBL && !dev->driver->get_vblank_timestamp, + WARN_ONCE(drm_debug_enabled(DRM_UT_VBL) && !dev->driver->get_vblank_timestamp, "This function requires support for accurate vblank timestamps.");
spin_lock_irqsave(&dev->vblank_time_lock, flags); @@ -706,7 +706,7 @@ bool drm_calc_vbltimestamp_from_scanoutpos(struct drm_device *dev, */ *vblank_time = ktime_sub_ns(etime, delta_ns);
- if ((drm_debug & DRM_UT_VBL) == 0) + if (!drm_debug_enabled(DRM_UT_VBL)) return true;
ts_etime = ktime_to_timespec64(etime); @@ -1352,7 +1352,7 @@ void drm_vblank_restore(struct drm_device *dev, unsigned int pipe) assert_spin_locked(&dev->vblank_time_lock);
vblank = &dev->vblank[pipe]; - WARN_ONCE((drm_debug & DRM_UT_VBL) && !vblank->framedur_ns, + WARN_ONCE(drm_debug_enabled(DRM_UT_VBL) && !vblank->framedur_ns, "Cannot compute missed vblanks without frame duration\n"); framedur_ns = vblank->framedur_ns;
diff --git a/include/drm/drm_print.h b/include/drm/drm_print.h index fc9f218ab715..5b8049992c24 100644 --- a/include/drm/drm_print.h +++ b/include/drm/drm_print.h @@ -293,6 +293,11 @@ static inline struct drm_printer drm_err_printer(const char *prefix) #define DRM_UT_LEASE 0x80 #define DRM_UT_DP 0x100
+static inline bool drm_debug_enabled(unsigned int category) +{ + return unlikely(drm_debug & category); +} + __printf(3, 4) void drm_dev_printk(const struct device *dev, const char *level, const char *format, ...);