diff options
| author | Xiaolei Wang <xiaolei.wang@windriver.com> | 2024-10-02 01:34:30 +0200 |
|---|---|---|
| committer | Lucas Stach <l.stach@pengutronix.de> | 2024-10-28 16:29:16 +0100 |
| commit | 13c96ac9a3f0f1c7ba1ff0656ea508e7fa065e7e (patch) | |
| tree | 02f995136365501db5c2d972110b3d77bd855e2c /drivers/gpu/drm/etnaviv | |
| parent | Linux 6.12-rc1 (diff) | |
| download | linux-13c96ac9a3f0f1c7ba1ff0656ea508e7fa065e7e.tar.xz linux-13c96ac9a3f0f1c7ba1ff0656ea508e7fa065e7e.zip | |
drm/etnaviv: Request pages from DMA32 zone on addressing_limited
Remove __GFP_HIGHMEM when requesting a page from DMA32 zone,
and since all vivante GPUs in the system will share the same
DMA constraints, move the check of whether to get a page from
DMA32 to etnaviv_bind().
Fixes: b72af445cd38 ("drm/etnaviv: request pages from DMA32 zone when needed")
Suggested-by: Sui Jingfeng <sui.jingfeng@linux.dev>
Signed-off-by: Xiaolei Wang <xiaolei.wang@windriver.com>
Reviewed-by: Christian Gmeiner <cgmeiner@igalia.com>
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Diffstat (limited to 'drivers/gpu/drm/etnaviv')
| -rw-r--r-- | drivers/gpu/drm/etnaviv/etnaviv_drv.c | 10 | ||||
| -rw-r--r-- | drivers/gpu/drm/etnaviv/etnaviv_gpu.c | 8 |
2 files changed, 10 insertions, 8 deletions
diff --git a/drivers/gpu/drm/etnaviv/etnaviv_drv.c b/drivers/gpu/drm/etnaviv/etnaviv_drv.c index 6500f3999c5f..19ec67a5a918 100644 --- a/drivers/gpu/drm/etnaviv/etnaviv_drv.c +++ b/drivers/gpu/drm/etnaviv/etnaviv_drv.c @@ -538,6 +538,16 @@ static int etnaviv_bind(struct device *dev) priv->num_gpus = 0; priv->shm_gfp_mask = GFP_HIGHUSER | __GFP_RETRY_MAYFAIL | __GFP_NOWARN; + /* + * If the GPU is part of a system with DMA addressing limitations, + * request pages for our SHM backend buffers from the DMA32 zone to + * hopefully avoid performance killing SWIOTLB bounce buffering. + */ + if (dma_addressing_limited(dev)) { + priv->shm_gfp_mask |= GFP_DMA32; + priv->shm_gfp_mask &= ~__GFP_HIGHMEM; + } + priv->cmdbuf_suballoc = etnaviv_cmdbuf_suballoc_new(drm->dev); if (IS_ERR(priv->cmdbuf_suballoc)) { dev_err(drm->dev, "Failed to create cmdbuf suballocator\n"); diff --git a/drivers/gpu/drm/etnaviv/etnaviv_gpu.c b/drivers/gpu/drm/etnaviv/etnaviv_gpu.c index 7c7f97793ddd..5e753dd42f72 100644 --- a/drivers/gpu/drm/etnaviv/etnaviv_gpu.c +++ b/drivers/gpu/drm/etnaviv/etnaviv_gpu.c @@ -839,14 +839,6 @@ int etnaviv_gpu_init(struct etnaviv_gpu *gpu) if (ret) goto fail; - /* - * If the GPU is part of a system with DMA addressing limitations, - * request pages for our SHM backend buffers from the DMA32 zone to - * hopefully avoid performance killing SWIOTLB bounce buffering. - */ - if (dma_addressing_limited(gpu->dev)) - priv->shm_gfp_mask |= GFP_DMA32; - /* Create buffer: */ ret = etnaviv_cmdbuf_init(priv->cmdbuf_suballoc, &gpu->buffer, PAGE_SIZE); |