diff options
Diffstat (limited to 'drivers/gpu/drm/i915/i915_sysfs.c')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_sysfs.c | 26 |
1 files changed, 12 insertions, 14 deletions
diff --git a/drivers/gpu/drm/i915/i915_sysfs.c b/drivers/gpu/drm/i915/i915_sysfs.c index f3fdfda5e558..1eef3fae4db3 100644 --- a/drivers/gpu/drm/i915/i915_sysfs.c +++ b/drivers/gpu/drm/i915/i915_sysfs.c @@ -181,13 +181,10 @@ 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; - if (!HAS_HW_CONTEXTS(dev_priv)) - return -ENXIO; - ret = l3_access_valid(dev_priv, offset); if (ret) return ret; @@ -196,11 +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; } } @@ -208,18 +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 = { |