36 lines
864 B
C
36 lines
864 B
C
#include "drmP.h"
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#include "drm.h"
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#include "nouveau_drv.h"
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#include "nouveau_drm.h"
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int
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nv04_mc_init(struct drm_device *dev)
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{
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struct drm_nouveau_private *dev_priv = dev->dev_private;
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uint32_t saved_pci_nv_1, saved_pci_nv_19;
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saved_pci_nv_1 = NV_READ(NV04_PBUS_PCI_NV_1);
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saved_pci_nv_19 = NV_READ(NV04_PBUS_PCI_NV_19);
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/* clear busmaster bit */
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NV_WRITE(NV04_PBUS_PCI_NV_1, saved_pci_nv_1 & ~(0x00000001 << 2));
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/* clear SBA and AGP bits */
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NV_WRITE(NV04_PBUS_PCI_NV_19, saved_pci_nv_19 & 0xfffff0ff);
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/* Power up everything, resetting each individual unit will
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* be done later if needed.
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*/
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NV_WRITE(NV03_PMC_ENABLE, 0xFFFFFFFF);
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/* and restore (gives effect of resetting AGP) */
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NV_WRITE(NV04_PBUS_PCI_NV_19, saved_pci_nv_19);
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NV_WRITE(NV04_PBUS_PCI_NV_1, saved_pci_nv_1);
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return 0;
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}
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void
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nv04_mc_takedown(struct drm_device *dev)
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{
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}
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