drivers/gpu/drm/nouveau/nv40_mc.c

#include <drm/drmP.h>
#include "nouveau_drv.h"
#include <drm/nouveau_drm.h>

int
nv40_mc_init(struct drm_device *dev)
{
	/* Power up everything, resetting each individual unit will
	 * be done later if needed.
	 */
	nv_wr32(dev, NV03_PMC_ENABLE, 0xFFFFFFFF);

	if (nv44_graph_class(dev)) {
		u32 tmp = nv_rd32(dev, NV04_PFB_FIFO_DATA);
		nv_wr32(dev, NV40_PMC_1700, tmp);
		nv_wr32(dev, NV40_PMC_1704, 0);
		nv_wr32(dev, NV40_PMC_1708, 0);
		nv_wr32(dev, NV40_PMC_170C, tmp);
	}

	return 0;
}

void
nv40_mc_takedown(struct drm_device *dev)
{
}