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drm/i915/acpi: Move the code to populate ACPI device ID into intel_acpi

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Move the code that populates the ACPI device ID for devices, into more
appripriate intel_acpi.c. This is done in preparation for more users of
this code.

Signed-off-by: Rajat Jain <rajatja@google.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191220200353.252399-1-rajatja@google.com
This commit is contained in:
Rajat Jain 2019-12-20 12:03:51 -08:00 committed by Jani Nikula
parent d62f416f92
commit 5fb4430630
3 changed files with 98 additions and 76 deletions
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89
drivers/gpu/drm/i915/display/intel_acpi.c
View File

@ -10,6 +10,7 @@
#include "i915_drv.h"
#include "intel_acpi.h"
#include "intel_display_types.h"
#define INTEL_DSM_REVISION_ID 1 /* For Calpella anyway... */
#define INTEL_DSM_FN_PLATFORM_MUX_INFO 1 /* No args */
@ -156,3 +157,91 @@ void intel_register_dsm_handler(void)
void intel_unregister_dsm_handler(void)
{
}
/*
* ACPI Specification, Revision 5.0, Appendix B.3.2 _DOD (Enumerate All Devices
* Attached to the Display Adapter).
*/
#define ACPI_DISPLAY_INDEX_SHIFT 0
#define ACPI_DISPLAY_INDEX_MASK (0xf << 0)
#define ACPI_DISPLAY_PORT_ATTACHMENT_SHIFT 4
#define ACPI_DISPLAY_PORT_ATTACHMENT_MASK (0xf << 4)
#define ACPI_DISPLAY_TYPE_SHIFT 8
#define ACPI_DISPLAY_TYPE_MASK (0xf << 8)
#define ACPI_DISPLAY_TYPE_OTHER (0 << 8)
#define ACPI_DISPLAY_TYPE_VGA (1 << 8)
#define ACPI_DISPLAY_TYPE_TV (2 << 8)
#define ACPI_DISPLAY_TYPE_EXTERNAL_DIGITAL (3 << 8)
#define ACPI_DISPLAY_TYPE_INTERNAL_DIGITAL (4 << 8)
#define ACPI_VENDOR_SPECIFIC_SHIFT 12
#define ACPI_VENDOR_SPECIFIC_MASK (0xf << 12)
#define ACPI_BIOS_CAN_DETECT (1 << 16)
#define ACPI_DEPENDS_ON_VGA (1 << 17)
#define ACPI_PIPE_ID_SHIFT 18
#define ACPI_PIPE_ID_MASK (7 << 18)
#define ACPI_DEVICE_ID_SCHEME (1ULL << 31)
static u32 acpi_display_type(struct intel_connector *connector)
{
u32 display_type;
switch (connector->base.connector_type) {
case DRM_MODE_CONNECTOR_VGA:
case DRM_MODE_CONNECTOR_DVIA:
display_type = ACPI_DISPLAY_TYPE_VGA;
break;
case DRM_MODE_CONNECTOR_Composite:
case DRM_MODE_CONNECTOR_SVIDEO:
case DRM_MODE_CONNECTOR_Component:
case DRM_MODE_CONNECTOR_9PinDIN:
case DRM_MODE_CONNECTOR_TV:
display_type = ACPI_DISPLAY_TYPE_TV;
break;
case DRM_MODE_CONNECTOR_DVII:
case DRM_MODE_CONNECTOR_DVID:
case DRM_MODE_CONNECTOR_DisplayPort:
case DRM_MODE_CONNECTOR_HDMIA:
case DRM_MODE_CONNECTOR_HDMIB:
display_type = ACPI_DISPLAY_TYPE_EXTERNAL_DIGITAL;
break;
case DRM_MODE_CONNECTOR_LVDS:
case DRM_MODE_CONNECTOR_eDP:
case DRM_MODE_CONNECTOR_DSI:
display_type = ACPI_DISPLAY_TYPE_INTERNAL_DIGITAL;
break;
case DRM_MODE_CONNECTOR_Unknown:
case DRM_MODE_CONNECTOR_VIRTUAL:
display_type = ACPI_DISPLAY_TYPE_OTHER;
break;
default:
MISSING_CASE(connector->base.connector_type);
display_type = ACPI_DISPLAY_TYPE_OTHER;
break;
}
return display_type;
}
void intel_acpi_device_id_update(struct drm_i915_private *dev_priv)
{
struct drm_device *drm_dev = &dev_priv->drm;
struct intel_connector *connector;
struct drm_connector_list_iter conn_iter;
u8 display_index[16] = {};
/* Populate the ACPI IDs for all connectors for a given drm_device */
drm_connector_list_iter_begin(drm_dev, &conn_iter);
for_each_intel_connector_iter(connector, &conn_iter) {
u32 device_id, type;
device_id = acpi_display_type(connector);
/* Use display type specific display index. */
type = (device_id & ACPI_DISPLAY_TYPE_MASK)
>> ACPI_DISPLAY_TYPE_SHIFT;
device_id |= display_index[type]++ << ACPI_DISPLAY_INDEX_SHIFT;
connector->acpi_device_id = device_id;
}
drm_connector_list_iter_end(&conn_iter);
}

5
drivers/gpu/drm/i915/display/intel_acpi.h
View File

@ -6,12 +6,17 @@
#ifndef __INTEL_ACPI_H__
#define __INTEL_ACPI_H__
struct drm_i915_private;
#ifdef CONFIG_ACPI
void intel_register_dsm_handler(void);
void intel_unregister_dsm_handler(void);
void intel_acpi_device_id_update(struct drm_i915_private *i915);
#else
static inline void intel_register_dsm_handler(void) { return; }
static inline void intel_unregister_dsm_handler(void) { return; }
static inline
void intel_acpi_device_id_update(struct drm_i915_private *i915) { return; }
#endif /* CONFIG_ACPI */
#endif /* __INTEL_ACPI_H__ */

80
drivers/gpu/drm/i915/display/intel_opregion.c
View File

@ -35,6 +35,7 @@
#include "display/intel_panel.h"
#include "i915_drv.h"
#include "intel_acpi.h"
#include "intel_display_types.h"
#include "intel_opregion.h"
@ -242,29 +243,6 @@ struct opregion_asle_ext {
#define SWSCI_SBCB_POST_VBE_PM SWSCI_FUNCTION_CODE(SWSCI_SBCB, 19)
#define SWSCI_SBCB_ENABLE_DISABLE_AUDIO SWSCI_FUNCTION_CODE(SWSCI_SBCB, 21)
/*
* ACPI Specification, Revision 5.0, Appendix B.3.2 _DOD (Enumerate All Devices
* Attached to the Display Adapter).
*/
#define ACPI_DISPLAY_INDEX_SHIFT 0
#define ACPI_DISPLAY_INDEX_MASK (0xf << 0)
#define ACPI_DISPLAY_PORT_ATTACHMENT_SHIFT 4
#define ACPI_DISPLAY_PORT_ATTACHMENT_MASK (0xf << 4)
#define ACPI_DISPLAY_TYPE_SHIFT 8
#define ACPI_DISPLAY_TYPE_MASK (0xf << 8)
#define ACPI_DISPLAY_TYPE_OTHER (0 << 8)
#define ACPI_DISPLAY_TYPE_VGA (1 << 8)
#define ACPI_DISPLAY_TYPE_TV (2 << 8)
#define ACPI_DISPLAY_TYPE_EXTERNAL_DIGITAL (3 << 8)
#define ACPI_DISPLAY_TYPE_INTERNAL_DIGITAL (4 << 8)
#define ACPI_VENDOR_SPECIFIC_SHIFT 12
#define ACPI_VENDOR_SPECIFIC_MASK (0xf << 12)
#define ACPI_BIOS_CAN_DETECT (1 << 16)
#define ACPI_DEPENDS_ON_VGA (1 << 17)
#define ACPI_PIPE_ID_SHIFT 18
#define ACPI_PIPE_ID_MASK (7 << 18)
#define ACPI_DEVICE_ID_SCHEME (1 << 31)
#define MAX_DSLP 1500
static int swsci(struct drm_i915_private *dev_priv,
@ -662,54 +640,12 @@ static void set_did(struct intel_opregion *opregion, int i, u32 val)
}
}
static u32 acpi_display_type(struct intel_connector *connector)
{
u32 display_type;
switch (connector->base.connector_type) {
case DRM_MODE_CONNECTOR_VGA:
case DRM_MODE_CONNECTOR_DVIA:
display_type = ACPI_DISPLAY_TYPE_VGA;
break;
case DRM_MODE_CONNECTOR_Composite:
case DRM_MODE_CONNECTOR_SVIDEO:
case DRM_MODE_CONNECTOR_Component:
case DRM_MODE_CONNECTOR_9PinDIN:
case DRM_MODE_CONNECTOR_TV:
display_type = ACPI_DISPLAY_TYPE_TV;
break;
case DRM_MODE_CONNECTOR_DVII:
case DRM_MODE_CONNECTOR_DVID:
case DRM_MODE_CONNECTOR_DisplayPort:
case DRM_MODE_CONNECTOR_HDMIA:
case DRM_MODE_CONNECTOR_HDMIB:
display_type = ACPI_DISPLAY_TYPE_EXTERNAL_DIGITAL;
break;
case DRM_MODE_CONNECTOR_LVDS:
case DRM_MODE_CONNECTOR_eDP:
case DRM_MODE_CONNECTOR_DSI:
display_type = ACPI_DISPLAY_TYPE_INTERNAL_DIGITAL;
break;
case DRM_MODE_CONNECTOR_Unknown:
case DRM_MODE_CONNECTOR_VIRTUAL:
display_type = ACPI_DISPLAY_TYPE_OTHER;
break;
default:
MISSING_CASE(connector->base.connector_type);
display_type = ACPI_DISPLAY_TYPE_OTHER;
break;
}
return display_type;
}
static void intel_didl_outputs(struct drm_i915_private *dev_priv)
{
struct intel_opregion *opregion = &dev_priv->opregion;
struct intel_connector *connector;
struct drm_connector_list_iter conn_iter;
int i = 0, max_outputs;
int display_index[16] = {};
/*
* In theory, did2, the extended didl, gets added at opregion version
@ -721,20 +657,12 @@ static void intel_didl_outputs(struct drm_i915_private *dev_priv)
max_outputs = ARRAY_SIZE(opregion->acpi->didl) +
ARRAY_SIZE(opregion->acpi->did2);
intel_acpi_device_id_update(dev_priv);
drm_connector_list_iter_begin(&dev_priv->drm, &conn_iter);
for_each_intel_connector_iter(connector, &conn_iter) {
u32 device_id, type;
device_id = acpi_display_type(connector);
/* Use display type specific display index. */
type = (device_id & ACPI_DISPLAY_TYPE_MASK)
>> ACPI_DISPLAY_TYPE_SHIFT;
device_id |= display_index[type]++ << ACPI_DISPLAY_INDEX_SHIFT;
connector->acpi_device_id = device_id;
if (i < max_outputs)
set_did(opregion, i, device_id);
set_did(opregion, i, connector->acpi_device_id);
i++;
}
drm_connector_list_iter_end(&conn_iter);