On Fri, 13 Feb 2015, Bob Paauwe <bob.j.paa...@intel.com> wrote:
> This adds an init-time configuration framework that parses configuration
> data from an ACPI property table. The table is assumed to have well
> defined sub-device property tables that correspond to the various
> driver components. Initially the following sub-device tables are
> defined:
>
> CRTC (CRTC)
> The CRTC sub-device table contains additional sub-device tables
> where each one corresponds to a CRTC. Each CRTC sub-device must
> include a property called "id" whose value matches the driver's
> crtc id. Additional properties for the CRTC are used to configure
> the crtc.
>
> Connector (CNCT)
> The CNCT sub-device table contains additional sub-device tables
> where each one corresponds to a connector. Each of the connector
> sub-device tables must include a property called "name" whose value
> matches a connector name assigned by the driver (see later patch
> for output name function). Additional connector properties can
> be set through these tables.
>
> Plane (PLNS)
> The PLNS sub-device table contains additional sub-device tables
> where each one corresponds to a plane. [this needs additional work]
>
> In addition, the main device property table for the device may
> contain configuration information that applies to general driver
> configuration.
>
> The framework includes a couple of helper functions to access the
> configuration data.
>
> intel_config_get_integer() will look up a configuration property
> and return the integer value associated with it.
>
> intel_config_init_<component>_property() will look up a
> configuration property and assign the value to a drm
> property of the same name. These functions are used to
> initialize drm property instances to specific values.
>
> Signed-off-by: Bob Paauwe <bob.j.paa...@intel.com>
> ---
> drivers/gpu/drm/i915/Makefile | 3 +-
> drivers/gpu/drm/i915/i915_dma.c | 4 +
> drivers/gpu/drm/i915/i915_drv.h | 16 ++
> drivers/gpu/drm/i915/i915_params.c | 6 +
> drivers/gpu/drm/i915/intel_config.c | 542
> ++++++++++++++++++++++++++++++++++++
> drivers/gpu/drm/i915/intel_drv.h | 28 ++
> 6 files changed, 598 insertions(+), 1 deletion(-)
> create mode 100644 drivers/gpu/drm/i915/intel_config.c
>
> diff --git a/drivers/gpu/drm/i915/Makefile b/drivers/gpu/drm/i915/Makefile
> index f025e7f..462de19 100644
> --- a/drivers/gpu/drm/i915/Makefile
> +++ b/drivers/gpu/drm/i915/Makefile
> @@ -12,7 +12,8 @@ i915-y := i915_drv.o \
> i915_suspend.o \
> i915_sysfs.o \
> intel_pm.o \
> - intel_runtime_pm.o
> + intel_runtime_pm.o \
> + intel_config.o
>
> i915-$(CONFIG_COMPAT) += i915_ioc32.o
> i915-$(CONFIG_DEBUG_FS) += i915_debugfs.o
> diff --git a/drivers/gpu/drm/i915/i915_dma.c b/drivers/gpu/drm/i915/i915_dma.c
> index 5804aa5..9501360 100644
> --- a/drivers/gpu/drm/i915/i915_dma.c
> +++ b/drivers/gpu/drm/i915/i915_dma.c
> @@ -656,6 +656,8 @@ int i915_driver_load(struct drm_device *dev, unsigned
> long flags)
> dev->dev_private = dev_priv;
> dev_priv->dev = dev;
>
> + intel_config_init(dev);
> +
> /* Setup the write-once "constant" device info */
> device_info = (struct intel_device_info *)&dev_priv->info;
> memcpy(device_info, info, sizeof(dev_priv->info));
> @@ -929,6 +931,8 @@ int i915_driver_unload(struct drm_device *dev)
>
> acpi_video_unregister();
>
> + intel_config_shutdown(dev);
> +
> if (drm_core_check_feature(dev, DRIVER_MODESET))
> intel_fbdev_fini(dev);
>
> diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
> index 2dedd43..165091c 100644
> --- a/drivers/gpu/drm/i915/i915_drv.h
> +++ b/drivers/gpu/drm/i915/i915_drv.h
> @@ -1645,6 +1645,20 @@ struct i915_virtual_gpu {
> bool active;
> };
>
> +struct intel_config_node {
> + struct acpi_device *adev;
> + struct list_head node;
> + struct list_head list;
> +};
> +
> +struct intel_config_info {
> + struct intel_config_node base;
> + struct list_head crtc_list;
> + struct list_head connector_list;
> + struct list_head plane_list;
> +};
> +
> +
> struct drm_i915_private {
> struct drm_device *dev;
> struct kmem_cache *slab;
> @@ -1886,6 +1900,7 @@ struct drm_i915_private {
> u32 long_hpd_port_mask;
> u32 short_hpd_port_mask;
> struct work_struct dig_port_work;
> + struct intel_config_info *config_info;
>
> /*
> * if we get a HPD irq from DP and a HPD irq from non-DP
> @@ -2528,6 +2543,7 @@ struct i915_params {
> int enable_ips;
> int invert_brightness;
> int enable_cmd_parser;
> + char cfg_firmware[PATH_MAX];
> /* leave bools at the end to not create holes */
> bool enable_hangcheck;
> bool fastboot;
> diff --git a/drivers/gpu/drm/i915/i915_params.c
> b/drivers/gpu/drm/i915/i915_params.c
> index 44f2262..f92621c 100644
> --- a/drivers/gpu/drm/i915/i915_params.c
> +++ b/drivers/gpu/drm/i915/i915_params.c
> @@ -53,6 +53,7 @@ struct i915_params i915 __read_mostly = {
> .mmio_debug = 0,
> .verbose_state_checks = 1,
> .nuclear_pageflip = 0,
> + .cfg_firmware = "",
> };
>
> module_param_named(modeset, i915.modeset, int, 0400);
> @@ -183,3 +184,8 @@ MODULE_PARM_DESC(verbose_state_checks,
> module_param_named_unsafe(nuclear_pageflip, i915.nuclear_pageflip, bool,
> 0600);
> MODULE_PARM_DESC(nuclear_pageflip,
> "Force atomic modeset functionality; only planes work for now
> (default: false).");
> +
> +module_param_string(cfg_firmware, i915.cfg_firmware,
> sizeof(i915.cfg_firmware), 0444);
> +MODULE_PARM_DESC(cfg_firmware,
> + "Load configuration firmware from built-in data or
> /lib/firmware. ");
This isn't used now.
> +
> diff --git a/drivers/gpu/drm/i915/intel_config.c
> b/drivers/gpu/drm/i915/intel_config.c
> new file mode 100644
> index 0000000..cf7da93
> --- /dev/null
> +++ b/drivers/gpu/drm/i915/intel_config.c
> @@ -0,0 +1,542 @@
> +/*
> + * i915 configuration via ACPI device properties.
> + *
> + * Copyright (C) 2014, 2015 Intel Corporation
> + *
> + * Permission to use, copy, modify, distribute, and sell this software and
> its
> + * documentation for any purpose is hereby granted without fee, provided that
> + * the above copyright notice appear in all copies and that both that
> copyright
> + * notice and this permission notice appear in supporting documentation, and
> + * that the name of the copyright holders not be used in advertising or
> + * publicity pertaining to distribution of the software without specific,
> + * written prior permission. The copyright holders make no representations
> + * about the suitability of this software for any purpose. It is provided
> "as
> + * is" without express or implied warranty.
> + *
> + * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS
> SOFTWARE,
> + * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
> + * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
> + * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF
> USE,
> + * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
> + * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
> PERFORMANCE
> + * OF THIS SOFTWARE.
> + */
> +#include <linux/acpi.h>
> +#include <linux/init.h>
> +#include <linux/module.h>
> +#include <linux/firmware.h>
> +#include <linux/ctype.h>
> +#include <acpi/acpi_bus.h>
> +#include "intel_drv.h"
> +#include <drm/i915_drm.h>
> +#include "i915_drv.h"
> +#include "i915_trace.h"
> +#include <drm/drmP.h>
> +#include <drm/drm_crtc.h>
> +#include <drm/drm_crtc_helper.h>
> +
> +
> +#define i915_ACPI_PRP_ROOT "\\_SB.PRP.GFX0"
> +
> +/*
> + * Load an ACPI property table into the ACPI subsystem.
> + *
> + * First, verify that a table isn't already loaded. The table may
> + * be part of the ACPI firmware and thus loaded by the ACPI sub-system
> + * during boot. It is also possible for ACPI sub-system to load tables
> + * to override those supplied by the firmware.
> + *
> + * If a property table for the GFX device has not been loaded, attempt
> + * to load one from /lib/firmware here. The name will default to
> + * drm_i915.aml but the name be overridden by the cfg_firmware module
> + * parameter.
> + *
> + * The order of precidence for table loading is:
> + * - dyanamic table loaded by ACPI driver
> + * - table built into firmware
> + * - dynamic table loaded based on driver name or module parameter
> + *
> + * If the table is loaded by the driver, it will be unloaded when the
> + * driver module is unloaded. Tables that are part of the firmware or
> + * overridden by the ACPI driver are not unloaded and cannot be replaced
> + * by tables loaded by the driver.
> + */
> +static int intel_acpi_load_table(struct drm_device *dev, char *firmware)
> +{
> + struct acpi_table_header *table;
> + acpi_status status;
> + acpi_handle handle;
> + struct acpi_device *acpi_dev = NULL;
> + const struct firmware *fw;
> + int ret = 0;
> +
> + /* make sure the table isn't already loaded before loading it */
> + status = acpi_get_handle(ACPI_ROOT_OBJECT, i915_ACPI_PRP_ROOT, &handle);
> + if (ACPI_FAILURE(status)) {
> +
> + /* Try to dynamically load a table.... */
> + DRM_DEBUG_DRIVER("Requesting configuration table: %s\n",
> + firmware);
> + ret = request_firmware(&fw, firmware, dev->dev);
> + if (ret != 0) {
> + DRM_ERROR("Failed to find ACPI table %s: %d\n",
> + firmware, ret);
> + fw = NULL;
> + goto bad_table;
> + } else {
> + table = (struct acpi_table_header *)fw->data;
> + }
> +
> + /* Load the table into the acpi device. */
> + status = acpi_load_table(table);
> + if (ACPI_FAILURE(status))
> + goto bad_table;
> +
> + add_taint(TAINT_OVERRIDDEN_ACPI_TABLE, true);
> +
> + /* Get a handle and scan the bus */
> + status = acpi_get_handle(ACPI_ROOT_OBJECT, i915_ACPI_PRP_ROOT,
> + &handle);
> + acpi_bus_scan(handle);
> +
> + if (acpi_bus_get_device(handle, &acpi_dev))
> + goto bad_table;
> +
> + acpi_bind_one(dev->dev, acpi_dev);
> +
> + } else {
> + DRM_DEBUG_DRIVER("ACPI Property table previously loaded for
> _SB.PRP.GFX0\n");
> + }
> +
> + return 0;
> +
> +bad_table:
> + release_firmware(fw);
> + return -ENODEV;
> +}
> +
> +/*
> + * Use ACPI methods to get the property.
> + *
> + * This isn't using the generic device_property_read because that
> + * can only access properties associated with the actual device. It
> + * doesn't understand our sub-component property tree.
> + */
> +static bool node_property(struct intel_config_node *n,
> + const char *prop,
> + void *value)
> +{
> + int ret = 0;
> + const union acpi_object *obj;
> +
> + ret = acpi_dev_get_property(n->adev, prop, ACPI_TYPE_ANY, &obj);
> + if (ret == -ENODATA) {
> + /*
> + * This isn't really a failure, it's ok if the property
> + * doesn't exist. The message is for debug purposes only.
> + */
> + DRM_DEBUG_DRIVER("Property \"%s\" not found in %s\n",
> + prop, acpi_device_bid(n->adev));
> + } else if (ret == -EINVAL) {
> + DRM_ERROR("Invalid acpi device or property name.\n");
> + } else if (ret) {
> + /* This is a failure. */
> + DRM_ERROR("Property request failed for %s: %d\n", prop, ret);
> + } else {
> + switch (obj->type) {
> + case ACPI_TYPE_INTEGER:
> + *(u32 *)value = obj->integer.value;
> + break;
> + case ACPI_TYPE_STRING:
> + *(char **)value = obj->string.pointer;
> + break;
> + default:
> + DRM_ERROR("Unsupported property type, only support
> integer and string.\n");
> + ret = -1;
> + break;
> + }
> + }
> +
> + return ret == 0;
> +}
> +
> +
> +/**
> + * intel_config_init -
> + *
> + * Initialize the configuration framework by attempting to load a
> + * property table and parse the contents into component lists.
> + *
> + * @dev: The drm driver device.
> + */
> +void intel_config_init(struct drm_device *dev)
> +{
> + struct intel_config_info *info;
> + struct intel_config_node *new_node, *tmp;
> + acpi_handle handle;
> + struct acpi_device *cl, *component;
> + char *cname;
> + struct drm_i915_private *dev_priv = dev->dev_private;
> +
> + /* Load an ACPI table from /lib/firmware. */
> + snprintf(i915.cfg_firmware, PATH_MAX, "drm_%s.aml", dev->driver->name);
> +
> + if (intel_acpi_load_table(dev, i915.cfg_firmware) != 0) {
> + DRM_ERROR("Failed to load ACPI device property table.\n");
> + return;
> + }
> +
> + DRM_DEBUG_DRIVER("Loaded ACPI configuration for %s\n",
> + dev->driver->name);
> +
> + info = kzalloc(sizeof(*info), GFP_KERNEL);
> + if (!info) {
> + DRM_ERROR("Failed to allocate memory for configuration.\n");
> + return;
> + }
> +
> + INIT_LIST_HEAD(&info->base.list);
> + INIT_LIST_HEAD(&info->crtc_list);
> + INIT_LIST_HEAD(&info->connector_list);
> + INIT_LIST_HEAD(&info->plane_list);
> +
> + handle = ACPI_HANDLE(dev->dev);
> + if (!handle) {
> + DRM_DEBUG_DRIVER("No associated ACPI handle.\n");
> + kfree(info);
> + return;
> + } else {
> + acpi_bus_get_device(handle, &info->base.adev);
> + }
> +
> + /*
> + * Create a list of one for the top level driver config.
> + *
> + * We don't really need a full config_info structure for this but
> + * it simplifies the handling of driver general config settings
> + * as we don't have to have a special case and unique structure
> + * just for this.
> + */
> + INIT_LIST_HEAD(&info->base.node);
> + list_add_tail(&info->base.node, &info->base.list);
> +
> +/* Component sub-device ACPI names */
> +#define i915_COMPONENT_CRTC "CRTC"
> +#define i915_COMPONENT_CONNECTOR "CNCT"
> +#define i915_COMPONENT_PLANE "PLNS"
> +
> + /* Build lists */
> + list_for_each_entry(component, &info->base.adev->children, node) {
> + if (!component)
> + continue;
> +
> + cname = acpi_device_bid(component);
> +
> + list_for_each_entry(cl, &component->children, node) {
> + new_node = kzalloc(sizeof(*new_node), GFP_KERNEL);
> + if (!new_node)
> + goto bail;
> + new_node->adev = cl;
> + INIT_LIST_HEAD(&new_node->node);
> +
> + /* Add to the appropriate list */
> + if (strcmp(cname, i915_COMPONENT_CRTC) == 0) {
> + list_add_tail(&new_node->node,
> + &info->crtc_list);
> + } else if (strcmp(cname, i915_COMPONENT_CONNECTOR) ==
> 0) {
> + list_add_tail(&new_node->node,
> + &info->connector_list);
> + } else if (strcmp(cname, i915_COMPONENT_PLANE) == 0) {
> + list_add_tail(&new_node->node,
> + &info->plane_list);
> + } else {
> + /* unknown component, ignore it */
> + kfree(new_node);
> + }
> + }
> + }
> +
> + dev_priv->config_info = info;
> + DRM_DEBUG_DRIVER("i915 Configuration loaded.\n");
> + return;
> +
> +bail:
> + DRM_DEBUG_DRIVER("i915 Configuration aborted, insufficient memory.\n");
> + list_for_each_entry_safe(new_node, tmp, &info->crtc_list, node)
> + kfree(new_node);
> + list_for_each_entry_safe(new_node, tmp, &info->connector_list, node)
> + kfree(new_node);
> + list_for_each_entry_safe(new_node, tmp, &info->plane_list, node)
> + kfree(new_node);
> +
> + kfree(info);
> + dev_priv->config_info = NULL;
You should probably abstract this part to reduce duplication with
intel_config_shutdown. You also leak dev_priv->config_info there.
> +}
> +
> +
> +/**
> + * Clean up the configuration infrastructure as the driver is
> + * shuting down. Don't leak memory!
> + *
> + * @dev: The drm driver device.
> + */
> +void intel_config_shutdown(struct drm_device *dev)
> +{
> + struct drm_i915_private *dev_priv = dev->dev_private;
> + acpi_handle handle;
> + acpi_status status;
> + struct acpi_device *adev;
> + struct intel_config_info *info;
> + struct intel_config_node *n, *tmp;
> +
> + if (dev_priv->config_info == NULL)
> + return;
> +
> + /* Free the component lists. */
> + info = dev_priv->config_info;
> + list_for_each_entry_safe(n, tmp, &info->crtc_list, node)
> + kfree(n);
> + list_for_each_entry_safe(n, tmp, &info->connector_list, node)
> + kfree(n);
> + list_for_each_entry_safe(n, tmp, &info->plane_list, node)
> + kfree(n);
> +
> + /* Unload any dynamically loaded ACPI property table */
> + handle = ACPI_HANDLE(dev->dev);
> +
> + DRM_DEBUG_DRIVER("Unloading dynamic i915 Configuration ACPI table.\n");
> + if (handle) {
> +
> + acpi_unbind_one(dev->dev);
> +
> + if (acpi_bus_get_device(handle, &adev))
> + DRM_ERROR("Failed to get ACPI bus device.\n");
> + else
> + acpi_bus_trim(adev);
> +
> + status = acpi_unload_parent_table(handle);
> + if (ACPI_FAILURE(status))
> + DRM_ERROR("Failed to unload the i915 Configuration"
> + "ACPI table. %d\n", status);
> + }
> +}
> +
> +
> +
> +/*
> + * does_name_match
> + *
> + * The various drm components have names assocated with them. To link
> + * a component in the ACPI property tree, use a "special" property
> + * called "name".
> + *
> + * The exception is the general driver properties. There is no "name"
> + * property associated with those. We could force one, but that may
> + * be less intuitive than leaving the name empty.
> + *
> + * This function look for a property called "name" and compares the
> + * value of that property with the passed in name parameter.
> + */
> +static bool does_name_match(struct intel_config_node *node, const char *name)
> +{
> + char *p_name;
> +
> + /*
> + * General driver properties aren't in a section with a "name"
> + * property. Thus this should just return true in that case.
> + */
> + if (!name || strlen(name) == 0)
> + return true;
> +
> +
> + /* Look up a name property and see if it matches */
> + if (node_property(node, "name", &p_name)) {
> + if (strcmp(name, p_name) == 0)
> + return true;
> + }
> +
> + return false;
> +}
> +
> +
> +/*
> + * Map the configuration sub component enum to the cached
> + * sub component list.
> + */
> +static struct list_head *cfg_type_to_list(struct intel_config_info *info,
> + enum cfg_type cfg_type)
> +{
> + switch (cfg_type) {
> + case CFG_DRV:
> + return &info->base.list;
> + case CFG_CRTC:
> + return &info->crtc_list;
> + case CFG_CONNECTOR:
> + return &info->connector_list;
> + case CFG_PLANE:
> + return &info->plane_list;
> + }
> + return NULL;
> +}
> +
> +/*
> + * Integer property.
> + *
> + * Look up a property and set the value pointer to the property value.
> + *
> + * returns true if the property was found, false if not.
> + */
> +bool intel_config_get_integer(struct drm_i915_private *dev_priv,
> + enum cfg_type cfg_type,
> + const char *name,
> + const char *property,
> + uint32_t *value)
> +{
> + struct intel_config_info *info = dev_priv->config_info;
> + struct intel_config_node *n;
> + struct list_head *list;
> + bool ret = false;
> +
> + if (!info)
> + return false;
> +
> + list = cfg_type_to_list(info, cfg_type);
> + if (!list)
> + return false;
> +
> + list_for_each_entry(n, list, node) {
> + if (does_name_match(n, name)) {
> + if (node_property(n, property, value))
> + return true;
> + }
> + }
> +
> + return false;
> +}
> +
> +/*
> + * Look up a drm property name in the configuration store and if
> + * found, return the value.
> + *
> + * A default value is included in the parameter list so that something
> + * reasonable is returned if the lookup fails to find a matching
> + * configuration key.
> + */
> +static uint64_t lookup_property(struct drm_i915_private *dev_priv,
> + const char *name,
> + struct drm_property *property,
> + enum cfg_type cfg_type,
> + uint64_t dflt)
> +{
> + struct intel_config_info *info = dev_priv->config_info;
> + struct drm_property_enum *prop_enum;
> + const char *value;
> + uint64_t retval = dflt;
> + struct intel_config_node *n;
> + struct list_head *list;
> +
> + list = cfg_type_to_list(info, cfg_type);
> + if (!list)
> + goto out;
> +
> + list_for_each_entry(n, list, node) {
> + if (!does_name_match(n, name))
> + continue;
> + /*
> + * FIXME: This is assuming that the type is string
> + * for enun drm properties. This should be more
> + * generic and map drm property types to ACPI property
> + * types.
> + */
> + if (!node_property(n, property->name, &value))
> + continue;
> +
> + /* Look for a matching enum */
> + list_for_each_entry(prop_enum, &property->enum_list, head) {
> + if (strcmp(value, prop_enum->name) == 0) {
> + retval = prop_enum->value;
> + goto out;
> + }
> + }
> + }
> +
> +out:
> + return retval;
> +}
> +
> +/*
> + * Connector properties.
> + *
> + * If a connector drm property has a corresponding configuration property,
> + * use the configuration property value to initialize the drm property.
> + */
> +uint64_t intel_config_init_connector_property(struct drm_connector
> *connector,
> + const char *name,
> + struct drm_property *property,
> + uint64_t dflt)
> +{
> + struct drm_i915_private *dev_priv = connector->dev->dev_private;
> + struct intel_config_info *info = dev_priv->config_info;
> + uint64_t retval;
> +
> + if (!info)
> + goto out;
> +
> + retval = lookup_property(dev_priv, name, property, CFG_CONNECTOR, dflt);
> +
> +out:
> + drm_object_attach_property(&connector->base, property, retval);
> + return retval;
> +}
> +
> +
> +/*
> + * Plane properties.
> + *
> + * If a plane drm property has a corresponding configuration property,
> + * use the configuration property value to initialize the drm property.
> + */
> +uint64_t intel_config_init_plane_property(struct drm_plane *plane,
> + const char *name,
> + struct drm_property *property,
> + uint64_t dflt)
> +{
> + struct drm_i915_private *dev_priv = plane->dev->dev_private;
> + struct intel_config_info *info = dev_priv->config_info;
> + uint64_t retval;
> +
> + if (!info)
> + goto out;
> +
> + retval = lookup_property(dev_priv, name, property, CFG_PLANE, dflt);
> +
> +out:
> + drm_object_attach_property(&plane->base, property, retval);
> + return retval;
> +}
> +
> +
> +/*
> + * CRTC properties.
> + *
> + * If a crtc drm property has a corresponding configuration property,
> + * use the configuration property value to initialize the drm property.
> + */
> +uint64_t intel_config_init_crtc_property(struct drm_crtc *crtc,
> + const char *name,
> + struct drm_property *property,
> + uint64_t dflt)
> +{
> + struct drm_i915_private *dev_priv = crtc->dev->dev_private;
> + struct intel_config_info *info = dev_priv->config_info;
> + uint64_t retval;
> +
> + if (!info)
> + goto out;
> +
> + retval = lookup_property(dev_priv, name, property, CFG_CRTC, dflt);
> +
> +out:
> + drm_object_attach_property(&crtc->base, property, retval);
> + return retval;
> +}
> diff --git a/drivers/gpu/drm/i915/intel_drv.h
> b/drivers/gpu/drm/i915/intel_drv.h
> index 1de8e20..aefd95e 100644
> --- a/drivers/gpu/drm/i915/intel_drv.h
> +++ b/drivers/gpu/drm/i915/intel_drv.h
> @@ -1259,4 +1259,32 @@ void intel_plane_destroy_state(struct drm_plane *plane,
> struct drm_plane_state *state);
> extern const struct drm_plane_helper_funcs intel_plane_helper_funcs;
>
> +/* intel_config.c */
> +enum cfg_type {
> + CFG_DRV,
> + CFG_CRTC,
> + CFG_CONNECTOR,
> + CFG_PLANE
> +};
> +
> +void intel_config_init(struct drm_device *dev);
> +void intel_config_shutdown(struct drm_device *dev);
> +bool intel_config_get_integer(struct drm_i915_private *dev_priv,
> + enum cfg_type cfg_type,
> + const char *name,
> + const char *property,
> + uint32_t *value);
> +uint64_t intel_config_init_connector_property(struct drm_connector
> *connector,
> + const char *name,
> + struct drm_property *property,
> + uint64_t dflt);
> +uint64_t intel_config_init_plane_property(struct drm_plane *plane,
> + const char *name,
> + struct drm_property *property,
> + uint64_t dflt);
> +uint64_t intel_config_init_crtc_property(struct drm_crtc *crtc,
> + const char *name,
> + struct drm_property *property,
> + uint64_t dflt);
> +
> #endif /* __INTEL_DRV_H__ */
> --
> 2.1.0
>
> _______________________________________________
> Intel-gfx mailing list
> Intel-gfx@lists.freedesktop.org
> http://lists.freedesktop.org/mailman/listinfo/intel-gfx
--
Jani Nikula, Intel Open Source Technology Center
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