From 459ca7e5283914845d7139905ff58824d2b0cc85 Mon Sep 17 00:00:00 2001 From: Ben Skeggs Date: Tue, 8 Mar 2011 14:47:53 +1000 Subject: [PATCH] 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: Ben Skeggs --- drivers/gpu/drm/nouveau/nouveau_mem.c | 34 +++++++++++++++++++++++++-------- drivers/gpu/drm/nouveau/nouveau_sgdma.c | 3 +-- 2 files changed, 27 insertions(+), 10 deletions(-) diff --git a/drivers/gpu/drm/nouveau/nouveau_mem.c b/drivers/gpu/drm/nouveau/nouveau_mem.c index 63b9040..02b48d18 100644 --- a/drivers/gpu/drm/nouveau/nouveau_mem.c +++ b/drivers/gpu/drm/nouveau/nouveau_mem.c @@ -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) diff --git a/drivers/gpu/drm/nouveau/nouveau_sgdma.c b/drivers/gpu/drm/nouveau/nouveau_sgdma.c index 1205f0f..a33fe40 100644 --- a/drivers/gpu/drm/nouveau/nouveau_sgdma.c +++ b/drivers/gpu/drm/nouveau/nouveau_sgdma.c @@ -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; -- 2.7.4