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drm/i915: Do not leak dev_priv->l3_parity.remap_info[]

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Add intel_irq_fini() for placing the deinitialization code,
starting with freeing dev_priv->l3_parity.remap_info[].

Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Cc: Mika Kuoppala <mika.kuoppala@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: http://patchwork.freedesktop.org/patch/msgid/1493366319-18515-1-git-send-email-joonas.lahtinen@linux.intel.com
This commit is contained in:
Joonas Lahtinen 2017-04-28 10:58:39 +03:00
parent a021880f78
commit cefcff8f93
4 changed files with 36 additions and 14 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

6
drivers/gpu/drm/i915/i915_drv.c
View file

@ -852,7 +852,7 @@ static int i915_driver_init_early(struct drm_i915_private *dev_priv,
intel_init_audio_hooks(dev_priv);
ret = i915_gem_load_init(dev_priv);
if (ret < 0)
goto err_workqueues;
goto err_irq;
intel_display_crc_init(dev_priv);
@ -864,7 +864,8 @@ static int i915_driver_init_early(struct drm_i915_private *dev_priv,
return 0;
err_workqueues:
err_irq:
intel_irq_fini(dev_priv);
i915_workqueues_cleanup(dev_priv);
err_engines:
i915_engines_cleanup(dev_priv);
@ -879,6 +880,7 @@ static void i915_driver_cleanup_early(struct drm_i915_private *dev_priv)
{
i915_perf_fini(dev_priv);
i915_gem_load_cleanup(dev_priv);
intel_irq_fini(dev_priv);
i915_workqueues_cleanup(dev_priv);
i915_engines_cleanup(dev_priv);
}

1
drivers/gpu/drm/i915/i915_drv.h
View file

@ -3057,6 +3057,7 @@ void i915_handle_error(struct drm_i915_private *dev_priv,
const char *fmt, ...);
extern void intel_irq_init(struct drm_i915_private *dev_priv);
extern void intel_irq_fini(struct drm_i915_private *dev_priv);
int intel_irq_install(struct drm_i915_private *dev_priv);
void intel_irq_uninstall(struct drm_i915_private *dev_priv);

20
drivers/gpu/drm/i915/i915_irq.c
View file

@ -1236,7 +1236,7 @@ out:
static void ivybridge_parity_work(struct work_struct *work)
{
struct drm_i915_private *dev_priv =
container_of(work, struct drm_i915_private, l3_parity.error_work);
container_of(work, typeof(*dev_priv), l3_parity.error_work);
u32 error_status, row, bank, subbank;
char *parity_event[6];
uint32_t misccpctl;
@ -4233,11 +4233,15 @@ static void i965_irq_uninstall(struct drm_device * dev)
void intel_irq_init(struct drm_i915_private *dev_priv)
{
struct drm_device *dev = &dev_priv->drm;
int i;
intel_hpd_init_work(dev_priv);
INIT_WORK(&dev_priv->rps.work, gen6_pm_rps_work);
INIT_WORK(&dev_priv->l3_parity.error_work, ivybridge_parity_work);
for (i = 0; i < MAX_L3_SLICES; ++i)
dev_priv->l3_parity.remap_info[i] = NULL;
if (HAS_GUC_SCHED(dev_priv))
dev_priv->pm_guc_events = GEN9_GUC_TO_HOST_INT_EVENT;
@ -4362,6 +4366,20 @@ void intel_irq_init(struct drm_i915_private *dev_priv)
}
}
/**
* intel_irq_fini - deinitializes IRQ support
* @i915: i915 device instance
*
* This function deinitializes all the IRQ support.
*/
void intel_irq_fini(struct drm_i915_private *i915)
{
int i;
for (i = 0; i < MAX_L3_SLICES; ++i)
kfree(i915->l3_parity.remap_info[i]);
}
/**
* intel_irq_install - enables the hardware interrupt
* @dev_priv: i915 device instance

23
drivers/gpu/drm/i915/i915_sysfs.c
View file

@ -181,8 +181,8 @@ i915_l3_write(struct file *filp, struct kobject *kobj,
struct drm_i915_private *dev_priv = kdev_minor_to_i915(kdev);
struct drm_device *dev = &dev_priv->drm;
struct i915_gem_context *ctx;
u32 *temp = NULL; /* Just here to make handling failures easy */
int slice = (int)(uintptr_t)attr->private;
u32 **remap_info;
int ret;
ret = l3_access_valid(dev_priv, offset);
@ -193,11 +193,12 @@ i915_l3_write(struct file *filp, struct kobject *kobj,
if (ret)
return ret;
if (!dev_priv->l3_parity.remap_info[slice]) {
temp = kzalloc(GEN7_L3LOG_SIZE, GFP_KERNEL);
if (!temp) {
mutex_unlock(&dev->struct_mutex);
return -ENOMEM;
remap_info = &dev_priv->l3_parity.remap_info[slice];
if (!*remap_info) {
*remap_info = kzalloc(GEN7_L3LOG_SIZE, GFP_KERNEL);
if (!*remap_info) {
ret = -ENOMEM;
goto out;
}
}
@ -205,18 +206,18 @@ i915_l3_write(struct file *filp, struct kobject *kobj,
* aren't propagated. Since I cannot find a stable way to reset the GPU
* at this point it is left as a TODO.
*/
if (temp)
dev_priv->l3_parity.remap_info[slice] = temp;
memcpy(dev_priv->l3_parity.remap_info[slice] + (offset/4), buf, count);
memcpy(*remap_info + (offset/4), buf, count);
/* NB: We defer the remapping until we switch to the context */
list_for_each_entry(ctx, &dev_priv->context_list, link)
ctx->remap_slice |= (1<<slice);
ret = count;
out:
mutex_unlock(&dev->struct_mutex);
return count;
return ret;
}
static struct bin_attribute dpf_attrs = {