diff options
author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2016-05-09 13:20:04 +0200 |
---|---|---|
committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2016-05-09 13:20:04 +0200 |
commit | 4096e645d85d575e7b6e699f470f5519c34fda5d (patch) | |
tree | 9cfb8e2c1a816e2f7142d20b79c578fdf69dd2f2 /drivers/gpu/drm/etnaviv | |
parent | a0ca97b808c06793fd9dfb69243ce945c9fff501 (diff) | |
parent | 44549e8f5eea4e0a41b487b63e616cb089922b99 (diff) |
Merge 4.6-rc7 into staging-next
This fixes some merge issues with some iio drivers that were found in
linux-next.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/gpu/drm/etnaviv')
-rw-r--r-- | drivers/gpu/drm/etnaviv/etnaviv_gpu.c | 31 |
1 files changed, 18 insertions, 13 deletions
diff --git a/drivers/gpu/drm/etnaviv/etnaviv_gpu.c b/drivers/gpu/drm/etnaviv/etnaviv_gpu.c index 09198d0b5814..306dde18a94a 100644 --- a/drivers/gpu/drm/etnaviv/etnaviv_gpu.c +++ b/drivers/gpu/drm/etnaviv/etnaviv_gpu.c @@ -572,6 +572,24 @@ int etnaviv_gpu_init(struct etnaviv_gpu *gpu) goto fail; } + /* + * Set the GPU linear window to be at the end of the DMA window, where + * the CMA area is likely to reside. This ensures that we are able to + * map the command buffers while having the linear window overlap as + * much RAM as possible, so we can optimize mappings for other buffers. + * + * For 3D cores only do this if MC2.0 is present, as with MC1.0 it leads + * to different views of the memory on the individual engines. + */ + if (!(gpu->identity.features & chipFeatures_PIPE_3D) || + (gpu->identity.minor_features0 & chipMinorFeatures0_MC20)) { + u32 dma_mask = (u32)dma_get_required_mask(gpu->dev); + if (dma_mask < PHYS_OFFSET + SZ_2G) + gpu->memory_base = PHYS_OFFSET; + else + gpu->memory_base = dma_mask - SZ_2G + 1; + } + ret = etnaviv_hw_reset(gpu); if (ret) goto fail; @@ -1566,7 +1584,6 @@ static int etnaviv_gpu_platform_probe(struct platform_device *pdev) { struct device *dev = &pdev->dev; struct etnaviv_gpu *gpu; - u32 dma_mask; int err = 0; gpu = devm_kzalloc(dev, sizeof(*gpu), GFP_KERNEL); @@ -1576,18 +1593,6 @@ static int etnaviv_gpu_platform_probe(struct platform_device *pdev) gpu->dev = &pdev->dev; mutex_init(&gpu->lock); - /* - * Set the GPU linear window to be at the end of the DMA window, where - * the CMA area is likely to reside. This ensures that we are able to - * map the command buffers while having the linear window overlap as - * much RAM as possible, so we can optimize mappings for other buffers. - */ - dma_mask = (u32)dma_get_required_mask(dev); - if (dma_mask < PHYS_OFFSET + SZ_2G) - gpu->memory_base = PHYS_OFFSET; - else - gpu->memory_base = dma_mask - SZ_2G + 1; - /* Map registers: */ gpu->mmio = etnaviv_ioremap(pdev, NULL, dev_name(gpu->dev)); if (IS_ERR(gpu->mmio)) |