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path: root/drivers/gpu/drm/i915/i915_debugfs.c
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Diffstat (limited to 'drivers/gpu/drm/i915/i915_debugfs.c')
-rw-r--r--drivers/gpu/drm/i915/i915_debugfs.c101
1 files changed, 75 insertions, 26 deletions
diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c
index 3c395a59da3..d09a6e02dc9 100644
--- a/drivers/gpu/drm/i915/i915_debugfs.c
+++ b/drivers/gpu/drm/i915/i915_debugfs.c
@@ -29,6 +29,7 @@
#include <linux/seq_file.h>
#include <linux/debugfs.h>
#include <linux/slab.h>
+#include <linux/export.h>
#include "drmP.h"
#include "drm.h"
#include "intel_drv.h"
@@ -98,12 +99,12 @@ static const char *get_pin_flag(struct drm_i915_gem_object *obj)
static const char *get_tiling_flag(struct drm_i915_gem_object *obj)
{
- switch (obj->tiling_mode) {
- default:
- case I915_TILING_NONE: return " ";
- case I915_TILING_X: return "X";
- case I915_TILING_Y: return "Y";
- }
+ switch (obj->tiling_mode) {
+ default:
+ case I915_TILING_NONE: return " ";
+ case I915_TILING_X: return "X";
+ case I915_TILING_Y: return "Y";
+ }
}
static const char *cache_level_str(int type)
@@ -217,7 +218,7 @@ static int i915_gem_object_list_info(struct seq_file *m, void *data)
++mappable_count; \
} \
} \
-} while(0)
+} while (0)
static int i915_gem_object_info(struct seq_file *m, void* data)
{
@@ -635,11 +636,16 @@ static int i915_ringbuffer_info(struct seq_file *m, void *data)
struct drm_device *dev = node->minor->dev;
drm_i915_private_t *dev_priv = dev->dev_private;
struct intel_ring_buffer *ring;
+ int ret;
ring = &dev_priv->ring[(uintptr_t)node->info_ent->data];
if (ring->size == 0)
return 0;
+ ret = mutex_lock_interruptible(&dev->struct_mutex);
+ if (ret)
+ return ret;
+
seq_printf(m, "Ring %s:\n", ring->name);
seq_printf(m, " Head : %08x\n", I915_READ_HEAD(ring) & HEAD_ADDR);
seq_printf(m, " Tail : %08x\n", I915_READ_TAIL(ring) & TAIL_ADDR);
@@ -653,6 +659,8 @@ static int i915_ringbuffer_info(struct seq_file *m, void *data)
seq_printf(m, " Control : %08x\n", I915_READ_CTL(ring));
seq_printf(m, " Start : %08x\n", I915_READ_START(ring));
+ mutex_unlock(&dev->struct_mutex);
+
return 0;
}
@@ -841,7 +849,16 @@ static int i915_rstdby_delays(struct seq_file *m, void *unused)
struct drm_info_node *node = (struct drm_info_node *) m->private;
struct drm_device *dev = node->minor->dev;
drm_i915_private_t *dev_priv = dev->dev_private;
- u16 crstanddelay = I915_READ16(CRSTANDVID);
+ u16 crstanddelay;
+ int ret;
+
+ ret = mutex_lock_interruptible(&dev->struct_mutex);
+ if (ret)
+ return ret;
+
+ crstanddelay = I915_READ16(CRSTANDVID);
+
+ mutex_unlock(&dev->struct_mutex);
seq_printf(m, "w/ctx: %d, w/o ctx: %d\n", (crstanddelay >> 8) & 0x3f, (crstanddelay & 0x3f));
@@ -939,7 +956,11 @@ static int i915_delayfreq_table(struct seq_file *m, void *unused)
struct drm_device *dev = node->minor->dev;
drm_i915_private_t *dev_priv = dev->dev_private;
u32 delayfreq;
- int i;
+ int ret, i;
+
+ ret = mutex_lock_interruptible(&dev->struct_mutex);
+ if (ret)
+ return ret;
for (i = 0; i < 16; i++) {
delayfreq = I915_READ(PXVFREQ_BASE + i * 4);
@@ -947,6 +968,8 @@ static int i915_delayfreq_table(struct seq_file *m, void *unused)
(delayfreq & PXVFREQ_PX_MASK) >> PXVFREQ_PX_SHIFT);
}
+ mutex_unlock(&dev->struct_mutex);
+
return 0;
}
@@ -961,13 +984,19 @@ static int i915_inttoext_table(struct seq_file *m, void *unused)
struct drm_device *dev = node->minor->dev;
drm_i915_private_t *dev_priv = dev->dev_private;
u32 inttoext;
- int i;
+ int ret, i;
+
+ ret = mutex_lock_interruptible(&dev->struct_mutex);
+ if (ret)
+ return ret;
for (i = 1; i <= 32; i++) {
inttoext = I915_READ(INTTOEXT_BASE_ILK + i * 4);
seq_printf(m, "INTTOEXT%02d: 0x%08x\n", i, inttoext);
}
+ mutex_unlock(&dev->struct_mutex);
+
return 0;
}
@@ -976,9 +1005,19 @@ static int i915_drpc_info(struct seq_file *m, void *unused)
struct drm_info_node *node = (struct drm_info_node *) m->private;
struct drm_device *dev = node->minor->dev;
drm_i915_private_t *dev_priv = dev->dev_private;
- u32 rgvmodectl = I915_READ(MEMMODECTL);
- u32 rstdbyctl = I915_READ(RSTDBYCTL);
- u16 crstandvid = I915_READ16(CRSTANDVID);
+ u32 rgvmodectl, rstdbyctl;
+ u16 crstandvid;
+ int ret;
+
+ ret = mutex_lock_interruptible(&dev->struct_mutex);
+ if (ret)
+ return ret;
+
+ rgvmodectl = I915_READ(MEMMODECTL);
+ rstdbyctl = I915_READ(RSTDBYCTL);
+ crstandvid = I915_READ16(CRSTANDVID);
+
+ mutex_unlock(&dev->struct_mutex);
seq_printf(m, "HD boost: %s\n", (rgvmodectl & MEMMODE_BOOST_EN) ?
"yes" : "no");
@@ -1166,9 +1205,16 @@ static int i915_gfxec(struct seq_file *m, void *unused)
struct drm_info_node *node = (struct drm_info_node *) m->private;
struct drm_device *dev = node->minor->dev;
drm_i915_private_t *dev_priv = dev->dev_private;
+ int ret;
+
+ ret = mutex_lock_interruptible(&dev->struct_mutex);
+ if (ret)
+ return ret;
seq_printf(m, "GFXEC: %ld\n", (unsigned long)I915_READ(0x112f4));
+ mutex_unlock(&dev->struct_mutex);
+
return 0;
}
@@ -1293,12 +1339,12 @@ i915_wedged_read(struct file *filp,
char buf[80];
int len;
- len = snprintf(buf, sizeof (buf),
+ len = snprintf(buf, sizeof(buf),
"wedged : %d\n",
atomic_read(&dev_priv->mm.wedged));
- if (len > sizeof (buf))
- len = sizeof (buf);
+ if (len > sizeof(buf))
+ len = sizeof(buf);
return simple_read_from_buffer(ubuf, max, ppos, buf, len);
}
@@ -1314,7 +1360,7 @@ i915_wedged_write(struct file *filp,
int val = 1;
if (cnt > 0) {
- if (cnt > sizeof (buf) - 1)
+ if (cnt > sizeof(buf) - 1)
return -EINVAL;
if (copy_from_user(buf, ubuf, cnt))
@@ -1357,11 +1403,11 @@ i915_max_freq_read(struct file *filp,
char buf[80];
int len;
- len = snprintf(buf, sizeof (buf),
+ len = snprintf(buf, sizeof(buf),
"max freq: %d\n", dev_priv->max_delay * 50);
- if (len > sizeof (buf))
- len = sizeof (buf);
+ if (len > sizeof(buf))
+ len = sizeof(buf);
return simple_read_from_buffer(ubuf, max, ppos, buf, len);
}
@@ -1378,7 +1424,7 @@ i915_max_freq_write(struct file *filp,
int val = 1;
if (cnt > 0) {
- if (cnt > sizeof (buf) - 1)
+ if (cnt > sizeof(buf) - 1)
return -EINVAL;
if (copy_from_user(buf, ubuf, cnt))
@@ -1432,12 +1478,12 @@ i915_cache_sharing_read(struct file *filp,
snpcr = I915_READ(GEN6_MBCUNIT_SNPCR);
mutex_unlock(&dev_priv->dev->struct_mutex);
- len = snprintf(buf, sizeof (buf),
+ len = snprintf(buf, sizeof(buf),
"%d\n", (snpcr & GEN6_MBC_SNPCR_MASK) >>
GEN6_MBC_SNPCR_SHIFT);
- if (len > sizeof (buf))
- len = sizeof (buf);
+ if (len > sizeof(buf))
+ len = sizeof(buf);
return simple_read_from_buffer(ubuf, max, ppos, buf, len);
}
@@ -1455,7 +1501,7 @@ i915_cache_sharing_write(struct file *filp,
int val = 1;
if (cnt > 0) {
- if (cnt > sizeof (buf) - 1)
+ if (cnt > sizeof(buf) - 1)
return -EINVAL;
if (copy_from_user(buf, ubuf, cnt))
@@ -1505,7 +1551,10 @@ drm_add_fake_info_node(struct drm_minor *minor,
node->minor = minor;
node->dent = ent;
node->info_ent = (void *) key;
- list_add(&node->list, &minor->debugfs_nodes.list);
+
+ mutex_lock(&minor->debugfs_lock);
+ list_add(&node->list, &minor->debugfs_list);
+ mutex_unlock(&minor->debugfs_lock);
return 0;
}
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-01-23 15:27:34 +0000