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@xxxxxxxxxxxx>
Acked-by: Alex Deucher <alexander.deucher@xxxxxxx>
Signed-off-by: Jani Nikula <jani.nikula@xxxxxxxxx>
---
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, ...);
--
2.20.1
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