On Wed, Dec 28, 2016 at 05:46:22PM +0100, Thomas Petazzoni wrote:
> +#ifdef CONFIG_ARCH_DMA_ADDR_T_64BIT
> + if (priv->hw_version == MVPP22) {
Maybe
if (sizeof(dma_addr_t) > sizeof(u32) && priv->hw_version == MVPP22) {
to get better compile coverage?
> + u32 val;
> + u32 paddr_highbits;
> +
> + val = mvpp2_read(priv, MVPP2_BM_ADDR_HIGH_ALLOC);
> + paddr_highbits = (val & MVPP2_BM_ADDR_HIGH_PHYS_MASK);
> +
> + *paddr |= (dma_addr_t)paddr_highbits << 32;
> + *vaddr = (unsigned long)phys_to_virt(dma_to_phys(dev, *paddr));
> + }
> +#endif
> +}
> +
> /* Free all buffers from the pool */
> static void mvpp2_bm_bufs_free(struct device *dev, struct mvpp2 *priv,
> struct mvpp2_bm_pool *bm_pool)
> @@ -3616,10 +3671,8 @@ static void mvpp2_bm_bufs_free(struct device *dev, struct mvpp2 *priv,
> dma_addr_t buf_phys_addr;
> unsigned long vaddr;
>
> - /* Get buffer virtual address (indirect access) */
> - buf_phys_addr = mvpp2_read(priv,
> - MVPP2_BM_PHY_ALLOC_REG(bm_pool->id));
> - vaddr = mvpp2_read(priv, MVPP2_BM_VIRT_ALLOC_REG);
> + mvpp2_bm_bufs_get_addrs(dev, priv, bm_pool,
> + &buf_phys_addr, &vaddr);
>
> dma_unmap_single(dev, buf_phys_addr,
> bm_pool->buf_size, DMA_FROM_DEVICE);
> @@ -3651,7 +3704,7 @@ static int mvpp2_bm_pool_destroy(struct platform_device *pdev,
> val |= MVPP2_BM_STOP_MASK;
> mvpp2_write(priv, MVPP2_BM_POOL_CTRL_REG(bm_pool->id), val);
>
> - dma_free_coherent(&pdev->dev, sizeof(u32) * bm_pool->size,
> + dma_free_coherent(&pdev->dev, bm_pool->size_bytes,
> bm_pool->virt_addr,
> bm_pool->phys_addr);
> return 0;
> @@ -3787,8 +3840,19 @@ static inline void mvpp2_bm_pool_put(struct mvpp2_port *port, int pool,
> dma_addr_t buf_phys_addr,
> unsigned long buf_virt_addr)
> {
> - mvpp2_write(port->priv, MVPP2_BM_VIRT_RLS_REG, buf_virt_addr);
> - mvpp2_write(port->priv, MVPP2_BM_PHY_RLS_REG(pool), buf_phys_addr);
> +#if defined(CONFIG_ARCH_DMA_ADDR_T_64BIT)
> + u32 val;
> +
> + val = upper_32_bits(buf_phys_addr) & MVPP22_BM_ADDR_HIGH_PHYS_RLS_MASK;
> + val |= (upper_32_bits(buf_virt_addr) &
> + MVPP22_BM_ADDR_HIGH_VIRT_RLS_MASK)
> + << MVPP22_BM_ADDR_HIGH_VIRT_RLS_SHIFT;
> + mvpp2_write(port->priv, MVPP22_BM_ADDR_HIGH_RLS_REG, val);
> +#endif
Similar compile-time conditional?
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