From 6aa23ced915f94e23cd7bc3c1d005e39ef39bb2b Mon Sep 17 00:00:00 2001 From: fred gao Date: Thu, 28 Sep 2017 11:03:03 +0800 Subject: [PATCH] drm/i915/gvt: Refactor vGPU type code in kvmgt part Git-commit: 6aa23ced915f94e23cd7bc3c1d005e39ef39bb2b Patch-mainline: v4.16-rc1 References: FATE#322643 bsc#1055900 all the vGPU type related code in kvmgt will be moved into gvt.c/gvt.h files while the common vGPU type related interfaces will be called. V2: - intel_gvt_{init,cleanup}_vgpu_type_groups are initialized in gvt part. (Wang, Zhi) Signed-off-by: fred gao Reviewed-by: Zhi Wang Signed-off-by: Zhi Wang Acked-by: Takashi Iwai --- drivers/gpu/drm/i915/gvt/kvmgt.c | 128 ++------------------------------------- 1 file changed, 8 insertions(+), 120 deletions(-) --- a/drivers/gpu/drm/i915/gvt/kvmgt.c +++ b/drivers/gpu/drm/i915/gvt/kvmgt.c @@ -248,120 +248,6 @@ static void gvt_cache_destroy(struct int } } -static struct intel_vgpu_type *intel_gvt_find_vgpu_type(struct intel_gvt *gvt, - const char *name) -{ - int i; - struct intel_vgpu_type *t; - const char *driver_name = dev_driver_string( - &gvt->dev_priv->drm.pdev->dev); - - for (i = 0; i < gvt->num_types; i++) { - t = &gvt->types[i]; - if (!strncmp(t->name, name + strlen(driver_name) + 1, - sizeof(t->name))) - return t; - } - - return NULL; -} - -static ssize_t available_instances_show(struct kobject *kobj, - struct device *dev, char *buf) -{ - struct intel_vgpu_type *type; - unsigned int num = 0; - void *gvt = kdev_to_i915(dev)->gvt; - - type = intel_gvt_find_vgpu_type(gvt, kobject_name(kobj)); - if (!type) - num = 0; - else - num = type->avail_instance; - - return sprintf(buf, "%u\n", num); -} - -static ssize_t device_api_show(struct kobject *kobj, struct device *dev, - char *buf) -{ - return sprintf(buf, "%s\n", VFIO_DEVICE_API_PCI_STRING); -} - -static ssize_t description_show(struct kobject *kobj, struct device *dev, - char *buf) -{ - struct intel_vgpu_type *type; - void *gvt = kdev_to_i915(dev)->gvt; - - type = intel_gvt_find_vgpu_type(gvt, kobject_name(kobj)); - if (!type) - return 0; - - return sprintf(buf, "low_gm_size: %dMB\nhigh_gm_size: %dMB\n" - "fence: %d\nresolution: %s\n" - "weight: %d\n", - BYTES_TO_MB(type->low_gm_size), - BYTES_TO_MB(type->high_gm_size), - type->fence, vgpu_edid_str(type->resolution), - type->weight); -} - -static MDEV_TYPE_ATTR_RO(available_instances); -static MDEV_TYPE_ATTR_RO(device_api); -static MDEV_TYPE_ATTR_RO(description); - -static struct attribute *type_attrs[] = { - &mdev_type_attr_available_instances.attr, - &mdev_type_attr_device_api.attr, - &mdev_type_attr_description.attr, - NULL, -}; - -static struct attribute_group *intel_vgpu_type_groups[] = { - [0 ... NR_MAX_INTEL_VGPU_TYPES - 1] = NULL, -}; - -static bool intel_gvt_init_vgpu_type_groups(struct intel_gvt *gvt) -{ - int i, j; - struct intel_vgpu_type *type; - struct attribute_group *group; - - for (i = 0; i < gvt->num_types; i++) { - type = &gvt->types[i]; - - group = kzalloc(sizeof(struct attribute_group), GFP_KERNEL); - if (WARN_ON(!group)) - goto unwind; - - group->name = type->name; - group->attrs = type_attrs; - intel_vgpu_type_groups[i] = group; - } - - return true; - -unwind: - for (j = 0; j < i; j++) { - group = intel_vgpu_type_groups[j]; - kfree(group); - } - - return false; -} - -static void intel_gvt_cleanup_vgpu_type_groups(struct intel_gvt *gvt) -{ - int i; - struct attribute_group *group; - - for (i = 0; i < gvt->num_types; i++) { - group = intel_vgpu_type_groups[i]; - kfree(group); - } -} - static void kvmgt_protect_table_init(struct kvmgt_guest_info *info) { hash_init(info->ptable); @@ -441,7 +327,7 @@ static int intel_vgpu_create(struct kobj pdev = mdev_parent_dev(mdev); gvt = kdev_to_i915(pdev)->gvt; - type = intel_gvt_find_vgpu_type(gvt, kobject_name(kobj)); + type = intel_gvt_ops->gvt_find_vgpu_type(gvt, kobject_name(kobj)); if (!type) { gvt_vgpu_err("failed to find type %s to create\n", kobject_name(kobj)); @@ -1217,8 +1103,7 @@ static const struct attribute_group *int NULL, }; -static const struct mdev_parent_ops intel_vgpu_ops = { - .supported_type_groups = intel_vgpu_type_groups, +static struct mdev_parent_ops intel_vgpu_ops = { .mdev_attr_groups = intel_vgpu_groups, .create = intel_vgpu_create, .remove = intel_vgpu_remove, @@ -1234,17 +1119,20 @@ static const struct mdev_parent_ops inte static int kvmgt_host_init(struct device *dev, void *gvt, const void *ops) { - if (!intel_gvt_init_vgpu_type_groups(gvt)) - return -EFAULT; + struct attribute **kvm_type_attrs; + struct attribute_group **kvm_vgpu_type_groups; intel_gvt_ops = ops; + if (!intel_gvt_ops->get_gvt_attrs(&kvm_type_attrs, + &kvm_vgpu_type_groups)) + return -EFAULT; + intel_vgpu_ops.supported_type_groups = kvm_vgpu_type_groups; return mdev_register_device(dev, &intel_vgpu_ops); } static void kvmgt_host_exit(struct device *dev, void *gvt) { - intel_gvt_cleanup_vgpu_type_groups(gvt); mdev_unregister_device(dev); }