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| author |   Ben Skeggs <bskeggs@redhat.com> | 2010-03-15 16:43:47 +1000 |
|---|---|---|
| committer | Ben Skeggs <bskeggs@redhat.com> | 2010-04-09 10:11:45 +1000 |
| commit | 40b2a687bd92827ca144d3623cf48377d8f7680d (patch) | |
| tree | b153cf2cace99265ef44e53663f0b63bf8bd343b /drivers | |
| parent | drm/nv50: fix fbcon when framebuffer above 4GiB mark (diff) | |
| download | linux-dev-40b2a687bd92827ca144d3623cf48377d8f7680d.tar.xz linux-dev-40b2a687bd92827ca144d3623cf48377d8f7680d.zip | |
drm/nv50: add more 0x100c80 flushy magic
Fixes the !vbo_fifo path in the 3D driver on certain chipsets. Still not
really any good idea of what exactly the magic achieves, but it makes
things work.
While we're at it, in the PCIEGART path, flush on unbinding also.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/gpu/drm/nouveau/nouveau_mem.c | 28 | ||||
| -rw-r--r-- | drivers/gpu/drm/nouveau/nouveau_sgdma.c | 18 |
2 files changed, 46 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/nouveau_mem.c b/drivers/gpu/drm/nouveau/nouveau_mem.c index 2dc09dbd817d..a4d5ecc6ed5a 100644 --- a/drivers/gpu/drm/nouveau/nouveau_mem.c +++ b/drivers/gpu/drm/nouveau/nouveau_mem.c @@ -347,6 +347,20 @@ nv50_mem_vm_bind_linear(struct drm_device *dev, uint64_t virt, uint32_t size, return -EBUSY; } + nv_wr32(dev, 0x100c80, 0x00040001); + if (!nv_wait(0x100c80, 0x00000001, 0x00000000)) { + NV_ERROR(dev, "timeout: (0x100c80 & 1) == 0 (2)\n"); + NV_ERROR(dev, "0x100c80 = 0x%08x\n", nv_rd32(dev, 0x100c80)); + return -EBUSY; + } + + nv_wr32(dev, 0x100c80, 0x00060001); + if (!nv_wait(0x100c80, 0x00000001, 0x00000000)) { + NV_ERROR(dev, "timeout: (0x100c80 & 1) == 0 (2)\n"); + NV_ERROR(dev, "0x100c80 = 0x%08x\n", nv_rd32(dev, 0x100c80)); + return -EBUSY; + } + return 0; } @@ -387,6 +401,20 @@ nv50_mem_vm_unbind(struct drm_device *dev, uint64_t virt, uint32_t size) if (!nv_wait(0x100c80, 0x00000001, 0x00000000)) { NV_ERROR(dev, "timeout: (0x100c80 & 1) == 0 (2)\n"); NV_ERROR(dev, "0x100c80 = 0x%08x\n", nv_rd32(dev, 0x100c80)); + return; + } + + nv_wr32(dev, 0x100c80, 0x00040001); + if (!nv_wait(0x100c80, 0x00000001, 0x00000000)) { + NV_ERROR(dev, "timeout: (0x100c80 & 1) == 0 (2)\n"); + NV_ERROR(dev, "0x100c80 = 0x%08x\n", nv_rd32(dev, 0x100c80)); + return; + } + + nv_wr32(dev, 0x100c80, 0x00060001); + if (!nv_wait(0x100c80, 0x00000001, 0x00000000)) { + NV_ERROR(dev, "timeout: (0x100c80 & 1) == 0 (2)\n"); + NV_ERROR(dev, "0x100c80 = 0x%08x\n", nv_rd32(dev, 0x100c80)); } } diff --git a/drivers/gpu/drm/nouveau/nouveau_sgdma.c b/drivers/gpu/drm/nouveau/nouveau_sgdma.c index ed1590577b6c..554fb45730c1 100644 --- a/drivers/gpu/drm/nouveau/nouveau_sgdma.c +++ b/drivers/gpu/drm/nouveau/nouveau_sgdma.c @@ -171,6 +171,24 @@ nouveau_sgdma_unbind(struct ttm_backend *be) } dev_priv->engine.instmem.finish_access(nvbe->dev); + if (dev_priv->card_type == NV_50) { + nv_wr32(dev, 0x100c80, 0x00050001); + if (!nv_wait(0x100c80, 0x00000001, 0x00000000)) { + NV_ERROR(dev, "timeout: (0x100c80 & 1) == 0 (2)\n"); + NV_ERROR(dev, "0x100c80 = 0x%08x\n", + nv_rd32(dev, 0x100c80)); + return -EBUSY; + } + + nv_wr32(dev, 0x100c80, 0x00000001); + if (!nv_wait(0x100c80, 0x00000001, 0x00000000)) { + NV_ERROR(dev, "timeout: (0x100c80 & 1) == 0 (2)\n"); + NV_ERROR(dev, "0x100c80 = 0x%08x\n", + nv_rd32(dev, 0x100c80)); + return -EBUSY; + } + } + nvbe->bound = false; return 0; } |