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Commit 459ca7e5 authored by Ben Skeggs's avatar Ben Skeggs
Browse files

drm/nv40: attempt to reserve just enough vram for all 32 channels 



This also makes the fact we're giving 512MiB of GART space to all PCIE
boards explicit, although the vast majority (if not all) of them will
now have a ramin_rsvd_vram larger than 2MiB anyway.

Signed-off-by: default avatarBen Skeggs <bskeggs@redhat.com>
parent 6fdb383e

drivers/gpu/drm/nouveau/nouveau_mem.c

+26 −8
Original line number Diff line number Diff line
@@ -424,14 +424,32 @@ nouveau_mem_vram_init(struct drm_device *dev) 
	}



	/* reserve space at end of VRAM for PRAMIN */

	if (dev_priv->chipset == 0x40 || dev_priv->chipset == 0x47 ||

	    dev_priv->chipset == 0x49 || dev_priv->chipset == 0x4b)

		dev_priv->ramin_rsvd_vram = (2 * 1024 * 1024);

	else

	if (dev_priv->card_type >= NV_40)

		dev_priv->ramin_rsvd_vram = (1 * 1024 * 1024);

	else

		dev_priv->ramin_rsvd_vram = (512 * 1024);

	if (dev_priv->card_type >= NV_50) {

		dev_priv->ramin_rsvd_vram = 1 * 1024 * 1024;

	} else

	if (dev_priv->card_type >= NV_40) {

		u32 vs = hweight8((nv_rd32(dev, 0x001540) & 0x0000ff00) >> 8);

		u32 rsvd;



		/* estimate grctx size, the magics come from nv40_grctx.c */

		if      (dev_priv->chipset == 0x40) rsvd = 0x6aa0 * vs;

		else if (dev_priv->chipset  < 0x43) rsvd = 0x4f00 * vs;

		else if (nv44_graph_class(dev))	    rsvd = 0x4980 * vs;

		else				    rsvd = 0x4a40 * vs;

		rsvd += 16 * 1024;

		rsvd *= dev_priv->engine.fifo.channels;



		/* pciegart table */

		if (drm_pci_device_is_pcie(dev))

			rsvd += 512 * 1024;



		/* object storage */

		rsvd += 512 * 1024;



		dev_priv->ramin_rsvd_vram = round_up(rsvd, 4096);

	} else {

		dev_priv->ramin_rsvd_vram = 512 * 1024;

	}



	ret = dev_priv->engine.vram.init(dev);

	if (ret)

drivers/gpu/drm/nouveau/nouveau_sgdma.c

+1 −2
Original line number Diff line number Diff line
@@ -427,8 +427,7 @@ nouveau_sgdma_init(struct drm_device *dev) 
	u32 aper_size, align;

	int ret;



	if (dev_priv->card_type >= NV_50 ||

	    dev_priv->ramin_rsvd_vram >= 2 * 1024 * 1024)

	if (dev_priv->card_type >= NV_50 || drm_pci_device_is_pcie(dev))

		aper_size = 512 * 1024 * 1024;

	else

		aper_size = 64 * 1024 * 1024;