Contributors: 3
| Author |
Tokens |
Token Proportion |
Commits |
Commit Proportion |
| Patrik Jakobsson |
146 |
92.41% |
1 |
33.33% |
| Sinan Kaya |
10 |
6.33% |
1 |
33.33% |
| Thomas Gleixner |
2 |
1.27% |
1 |
33.33% |
| Total |
158 |
|
3 |
|
// SPDX-License-Identifier: GPL-2.0-only
/**************************************************************************
* Copyright (c) 2011, Intel Corporation.
* All Rights Reserved.
*
**************************************************************************/
#include <drm/drmP.h>
#include "psb_drv.h"
void gma_get_core_freq(struct drm_device *dev)
{
uint32_t clock;
struct pci_dev *pci_root =
pci_get_domain_bus_and_slot(pci_domain_nr(dev->pdev->bus),
0, 0);
struct drm_psb_private *dev_priv = dev->dev_private;
/*pci_write_config_dword(pci_root, 0xD4, 0x00C32004);*/
/*pci_write_config_dword(pci_root, 0xD0, 0xE0033000);*/
pci_write_config_dword(pci_root, 0xD0, 0xD0050300);
pci_read_config_dword(pci_root, 0xD4, &clock);
pci_dev_put(pci_root);
switch (clock & 0x07) {
case 0:
dev_priv->core_freq = 100;
break;
case 1:
dev_priv->core_freq = 133;
break;
case 2:
dev_priv->core_freq = 150;
break;
case 3:
dev_priv->core_freq = 178;
break;
case 4:
dev_priv->core_freq = 200;
break;
case 5:
case 6:
case 7:
dev_priv->core_freq = 266;
break;
default:
dev_priv->core_freq = 0;
}
}