forked from KolibriOS/kolibrios
309 lines
8.7 KiB
C
309 lines
8.7 KiB
C
|
|
/* i915_drv.c -- i830,i845,i855,i865,i915 driver -*- linux-c -*-
|
|
*/
|
|
/*
|
|
*
|
|
* Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas.
|
|
* All Rights Reserved.
|
|
*
|
|
* Permission is hereby granted, free of charge, to any person obtaining a
|
|
* copy of this software and associated documentation files (the
|
|
* "Software"), to deal in the Software without restriction, including
|
|
* without limitation the rights to use, copy, modify, merge, publish,
|
|
* distribute, sub license, and/or sell copies of the Software, and to
|
|
* permit persons to whom the Software is furnished to do so, subject to
|
|
* the following conditions:
|
|
*
|
|
* The above copyright notice and this permission notice (including the
|
|
* next paragraph) shall be included in all copies or substantial portions
|
|
* of the Software.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
|
|
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
|
|
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
|
|
* IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
|
|
* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
|
|
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
|
|
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
|
|
*
|
|
*/
|
|
|
|
//#include <linux/device.h>
|
|
#include "drmP.h"
|
|
#include "drm.h"
|
|
#include "i915_drm.h"
|
|
#include "i915_drv.h"
|
|
#include "intel_drv.h"
|
|
|
|
|
|
#include <linux/kernel.h>
|
|
#include <linux/module.h>
|
|
#include <linux/mod_devicetable.h>
|
|
#include <errno-base.h>
|
|
#include <linux/pci.h>
|
|
|
|
#include <syscall.h>
|
|
|
|
#define __read_mostly
|
|
|
|
int init_display_kms(struct drm_device *dev);
|
|
|
|
|
|
int i915_panel_ignore_lid __read_mostly = 0;
|
|
|
|
unsigned int i915_powersave __read_mostly = 0;
|
|
|
|
unsigned int i915_enable_rc6 __read_mostly = 0;
|
|
|
|
unsigned int i915_enable_fbc __read_mostly = 0;
|
|
|
|
unsigned int i915_lvds_downclock __read_mostly = 0;
|
|
|
|
unsigned int i915_panel_use_ssc __read_mostly = 1;
|
|
|
|
int i915_vbt_sdvo_panel_type __read_mostly = -1;
|
|
|
|
#define PCI_VENDOR_ID_INTEL 0x8086
|
|
|
|
#define INTEL_VGA_DEVICE(id, info) { \
|
|
.class = PCI_CLASS_DISPLAY_VGA << 8, \
|
|
.class_mask = 0xff0000, \
|
|
.vendor = 0x8086, \
|
|
.device = id, \
|
|
.subvendor = PCI_ANY_ID, \
|
|
.subdevice = PCI_ANY_ID, \
|
|
.driver_data = (unsigned long) info }
|
|
|
|
static const struct intel_device_info intel_sandybridge_d_info = {
|
|
.gen = 6,
|
|
.need_gfx_hws = 1, .has_hotplug = 1,
|
|
.has_bsd_ring = 1,
|
|
.has_blt_ring = 1,
|
|
};
|
|
|
|
static const struct intel_device_info intel_sandybridge_m_info = {
|
|
.gen = 6, .is_mobile = 1,
|
|
.need_gfx_hws = 1, .has_hotplug = 1,
|
|
.has_fbc = 1,
|
|
.has_bsd_ring = 1,
|
|
.has_blt_ring = 1,
|
|
};
|
|
|
|
|
|
static const struct pci_device_id pciidlist[] = { /* aka */
|
|
INTEL_VGA_DEVICE(0x0102, &intel_sandybridge_d_info),
|
|
INTEL_VGA_DEVICE(0x0112, &intel_sandybridge_d_info),
|
|
INTEL_VGA_DEVICE(0x0122, &intel_sandybridge_d_info),
|
|
INTEL_VGA_DEVICE(0x0106, &intel_sandybridge_m_info),
|
|
INTEL_VGA_DEVICE(0x0116, &intel_sandybridge_m_info),
|
|
INTEL_VGA_DEVICE(0x0126, &intel_sandybridge_m_info),
|
|
INTEL_VGA_DEVICE(0x010A, &intel_sandybridge_d_info),
|
|
{0, 0, 0}
|
|
};
|
|
|
|
#define INTEL_PCH_DEVICE_ID_MASK 0xff00
|
|
#define INTEL_PCH_IBX_DEVICE_ID_TYPE 0x3b00
|
|
#define INTEL_PCH_CPT_DEVICE_ID_TYPE 0x1c00
|
|
#define INTEL_PCH_PPT_DEVICE_ID_TYPE 0x1e00
|
|
|
|
void intel_detect_pch (struct drm_device *dev)
|
|
{
|
|
struct drm_i915_private *dev_priv = dev->dev_private;
|
|
struct pci_dev *pch;
|
|
|
|
/*
|
|
* The reason to probe ISA bridge instead of Dev31:Fun0 is to
|
|
* make graphics device passthrough work easy for VMM, that only
|
|
* need to expose ISA bridge to let driver know the real hardware
|
|
* underneath. This is a requirement from virtualization team.
|
|
*/
|
|
pch = pci_get_class(PCI_CLASS_BRIDGE_ISA << 8, NULL);
|
|
if (pch) {
|
|
if (pch->vendor == PCI_VENDOR_ID_INTEL) {
|
|
int id;
|
|
id = pch->device & INTEL_PCH_DEVICE_ID_MASK;
|
|
|
|
if (id == INTEL_PCH_IBX_DEVICE_ID_TYPE) {
|
|
dev_priv->pch_type = PCH_IBX;
|
|
DRM_DEBUG_KMS("Found Ibex Peak PCH\n");
|
|
} else if (id == INTEL_PCH_CPT_DEVICE_ID_TYPE) {
|
|
dev_priv->pch_type = PCH_CPT;
|
|
DRM_DEBUG_KMS("Found CougarPoint PCH\n");
|
|
} else if (id == INTEL_PCH_PPT_DEVICE_ID_TYPE) {
|
|
/* PantherPoint is CPT compatible */
|
|
dev_priv->pch_type = PCH_CPT;
|
|
DRM_DEBUG_KMS("Found PatherPoint PCH\n");
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
static void __gen6_gt_force_wake_get(struct drm_i915_private *dev_priv)
|
|
{
|
|
int count;
|
|
|
|
count = 0;
|
|
while (count++ < 50 && (I915_READ_NOTRACE(FORCEWAKE_ACK) & 1))
|
|
udelay(10);
|
|
|
|
I915_WRITE_NOTRACE(FORCEWAKE, 1);
|
|
POSTING_READ(FORCEWAKE);
|
|
|
|
count = 0;
|
|
while (count++ < 50 && (I915_READ_NOTRACE(FORCEWAKE_ACK) & 1) == 0)
|
|
udelay(10);
|
|
}
|
|
|
|
/*
|
|
* Generally this is called implicitly by the register read function. However,
|
|
* if some sequence requires the GT to not power down then this function should
|
|
* be called at the beginning of the sequence followed by a call to
|
|
* gen6_gt_force_wake_put() at the end of the sequence.
|
|
*/
|
|
void gen6_gt_force_wake_get(struct drm_i915_private *dev_priv)
|
|
{
|
|
// WARN_ON(!mutex_is_locked(&dev_priv->dev->struct_mutex));
|
|
|
|
/* Forcewake is atomic in case we get in here without the lock */
|
|
if (atomic_add_return(1, &dev_priv->forcewake_count) == 1)
|
|
__gen6_gt_force_wake_get(dev_priv);
|
|
}
|
|
|
|
static void __gen6_gt_force_wake_put(struct drm_i915_private *dev_priv)
|
|
{
|
|
I915_WRITE_NOTRACE(FORCEWAKE, 0);
|
|
POSTING_READ(FORCEWAKE);
|
|
}
|
|
|
|
/*
|
|
* see gen6_gt_force_wake_get()
|
|
*/
|
|
void gen6_gt_force_wake_put(struct drm_i915_private *dev_priv)
|
|
{
|
|
// WARN_ON(!mutex_is_locked(&dev_priv->dev->struct_mutex));
|
|
|
|
if (atomic_dec_and_test(&dev_priv->forcewake_count))
|
|
__gen6_gt_force_wake_put(dev_priv);
|
|
}
|
|
|
|
void __gen6_gt_wait_for_fifo(struct drm_i915_private *dev_priv)
|
|
{
|
|
if (dev_priv->gt_fifo_count < GT_FIFO_NUM_RESERVED_ENTRIES ) {
|
|
int loop = 500;
|
|
u32 fifo = I915_READ_NOTRACE(GT_FIFO_FREE_ENTRIES);
|
|
while (fifo <= GT_FIFO_NUM_RESERVED_ENTRIES && loop--) {
|
|
udelay(10);
|
|
fifo = I915_READ_NOTRACE(GT_FIFO_FREE_ENTRIES);
|
|
}
|
|
// WARN_ON(loop < 0 && fifo <= GT_FIFO_NUM_RESERVED_ENTRIES);
|
|
dev_priv->gt_fifo_count = fifo;
|
|
}
|
|
dev_priv->gt_fifo_count--;
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
int drm_get_dev(struct pci_dev *pdev, const struct pci_device_id *ent);
|
|
|
|
int i915_init(void)
|
|
{
|
|
static pci_dev_t device;
|
|
const struct pci_device_id *ent;
|
|
int err;
|
|
|
|
if( init_agp() != 0)
|
|
{
|
|
DRM_ERROR("drm/i915 can't work without intel_agp module!\n");
|
|
return 0;
|
|
};
|
|
|
|
ent = find_pci_device(&device, pciidlist);
|
|
|
|
if( unlikely(ent == NULL) )
|
|
{
|
|
dbgprintf("device not found\n");
|
|
return 0;
|
|
};
|
|
|
|
dbgprintf("device %x:%x\n", device.pci_dev.vendor,
|
|
device.pci_dev.device);
|
|
|
|
err = drm_get_dev(&device.pci_dev, ent);
|
|
|
|
return err;
|
|
}
|
|
|
|
int drm_get_dev(struct pci_dev *pdev, const struct pci_device_id *ent)
|
|
{
|
|
static struct drm_device *dev;
|
|
int ret;
|
|
|
|
ENTER();
|
|
|
|
dev = kzalloc(sizeof(*dev), 0);
|
|
if (!dev)
|
|
return -ENOMEM;
|
|
|
|
// ret = pci_enable_device(pdev);
|
|
// if (ret)
|
|
// goto err_g1;
|
|
|
|
// pci_set_master(pdev);
|
|
|
|
// if ((ret = drm_fill_in_dev(dev, pdev, ent, driver))) {
|
|
// printk(KERN_ERR "DRM: Fill_in_dev failed.\n");
|
|
// goto err_g2;
|
|
// }
|
|
|
|
dev->pdev = pdev;
|
|
dev->pci_device = pdev->device;
|
|
dev->pci_vendor = pdev->vendor;
|
|
|
|
INIT_LIST_HEAD(&dev->filelist);
|
|
INIT_LIST_HEAD(&dev->ctxlist);
|
|
INIT_LIST_HEAD(&dev->vmalist);
|
|
INIT_LIST_HEAD(&dev->maplist);
|
|
|
|
spin_lock_init(&dev->count_lock);
|
|
mutex_init(&dev->struct_mutex);
|
|
mutex_init(&dev->ctxlist_mutex);
|
|
|
|
ret = i915_driver_load(dev, ent->driver_data );
|
|
|
|
if (ret)
|
|
goto err_g4;
|
|
|
|
ret = init_display_kms(dev);
|
|
|
|
if (ret)
|
|
goto err_g4;
|
|
|
|
|
|
// if( radeon_modeset )
|
|
// init_display_kms(dev->dev_private, &usermode);
|
|
// else
|
|
// init_display(dev->dev_private, &usermode);
|
|
|
|
LEAVE();
|
|
|
|
return 0;
|
|
|
|
err_g4:
|
|
// drm_put_minor(&dev->primary);
|
|
//err_g3:
|
|
// if (drm_core_check_feature(dev, DRIVER_MODESET))
|
|
// drm_put_minor(&dev->control);
|
|
//err_g2:
|
|
// pci_disable_device(pdev);
|
|
//err_g1:
|
|
free(dev);
|
|
|
|
LEAVE();
|
|
|
|
return ret;
|
|
}
|
|
|
|
|