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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:49:45 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:49:45 +0000 |
| commit | 2c3c1048746a4622d8c89a29670120dc8fab93c4 (patch) | |
| tree | 848558de17fb3008cdf4d861b01ac7781903ce39 /drivers/gpu/drm/gma500/gma_device.c | |
| parent | Initial commit. (diff) | |
| download | linux-2c3c1048746a4622d8c89a29670120dc8fab93c4.tar.xz linux-2c3c1048746a4622d8c89a29670120dc8fab93c4.zip | |
Adding upstream version 6.1.76.upstream/6.1.76
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'drivers/gpu/drm/gma500/gma_device.c')
| -rw-r--r-- | drivers/gpu/drm/gma500/gma_device.c | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/drivers/gpu/drm/gma500/gma_device.c b/drivers/gpu/drm/gma500/gma_device.c new file mode 100644 index 000000000..954f3a275 --- /dev/null +++ b/drivers/gpu/drm/gma500/gma_device.c @@ -0,0 +1,51 @@ +// SPDX-License-Identifier: GPL-2.0-only +/************************************************************************** + * Copyright (c) 2011, Intel Corporation. + * All Rights Reserved. + * + **************************************************************************/ + +#include "psb_drv.h" +#include "gma_device.h" + +void gma_get_core_freq(struct drm_device *dev) +{ + uint32_t clock; + struct pci_dev *pdev = to_pci_dev(dev->dev); + struct pci_dev *pci_root = + pci_get_domain_bus_and_slot(pci_domain_nr(pdev->bus), + 0, 0); + struct drm_psb_private *dev_priv = to_drm_psb_private(dev); + + /*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; + } +} |