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| author | Cho KyongHo | 2014-05-12 08:15:00 +0200 |
|---|---|---|
| committer | Joerg Roedel | 2014-05-13 19:12:58 +0200 |
| commit | 0bf4e54dbebff8aa4b69057e88431ba8b48d3d19 (patch) | |
| tree | 8fc9993af8cb57ca2d7839b86d4b70b001a6599a /drivers/iommu/exynos-iommu.c | |
| parent | iommu/exynos: Add devices attached to the System MMU to an IOMMU group (diff) | |
| download | kernel-qcow2-linux-0bf4e54dbebff8aa4b69057e88431ba8b48d3d19.tar.gz kernel-qcow2-linux-0bf4e54dbebff8aa4b69057e88431ba8b48d3d19.tar.xz kernel-qcow2-linux-0bf4e54dbebff8aa4b69057e88431ba8b48d3d19.zip | |
iommu/exynos: Enhanced error messages
Some redundant error message is removed and some error messages
are changed to error level from debug level.
Signed-off-by: Cho KyongHo <pullip.cho@samsung.com>
Signed-off-by: Shaik Ameer Basha <shaik.ameer@samsung.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Diffstat (limited to 'drivers/iommu/exynos-iommu.c')
| -rw-r--r-- | drivers/iommu/exynos-iommu.c | 23 |
1 files changed, 9 insertions, 14 deletions
diff --git a/drivers/iommu/exynos-iommu.c b/drivers/iommu/exynos-iommu.c index d18dc379f536..7188b47146e0 100644 --- a/drivers/iommu/exynos-iommu.c +++ b/drivers/iommu/exynos-iommu.c @@ -525,7 +525,7 @@ static int exynos_sysmmu_probe(struct platform_device *pdev) irq = platform_get_irq(pdev, 0); if (irq <= 0) { - dev_dbg(dev, "Unable to find IRQ resource\n"); + dev_err(dev, "Unable to find IRQ resource\n"); return irq; } @@ -787,10 +787,8 @@ static int lv2set_page(sysmmu_pte_t *pent, phys_addr_t paddr, size_t size, short *pgcnt) { if (size == SPAGE_SIZE) { - if (!lv2ent_fault(pent)) { - WARN(1, "Trying mapping on 4KiB where mapping exists"); + if (WARN_ON(!lv2ent_fault(pent))) return -EADDRINUSE; - } *pent = mk_lv2ent_spage(paddr); pgtable_flush(pent, pent + 1); @@ -798,9 +796,7 @@ static int lv2set_page(sysmmu_pte_t *pent, phys_addr_t paddr, size_t size, } else { /* size == LPAGE_SIZE */ int i; for (i = 0; i < SPAGES_PER_LPAGE; i++, pent++) { - if (!lv2ent_fault(pent)) { - WARN(1, - "Trying mapping on 64KiB where mapping exists"); + if (WARN_ON(!lv2ent_fault(pent))) { if (i > 0) memset(pent - i, 0, sizeof(*pent) * i); return -EADDRINUSE; @@ -847,8 +843,8 @@ static int exynos_iommu_map(struct iommu_domain *domain, unsigned long l_iova, } if (ret) - pr_debug("%s: Failed to map iova %#x/%#zx bytes\n", - __func__, iova, size); + pr_err("%s: Failed(%d) to map %#zx bytes @ %#x\n", + __func__, ret, size, iova); spin_unlock_irqrestore(&priv->pgtablelock, flags); @@ -872,7 +868,7 @@ static size_t exynos_iommu_unmap(struct iommu_domain *domain, ent = section_entry(priv->pgtable, iova); if (lv1ent_section(ent)) { - if (size < SECT_SIZE) { + if (WARN_ON(size < SECT_SIZE)) { err_pgsize = SECT_SIZE; goto err; } @@ -907,7 +903,7 @@ static size_t exynos_iommu_unmap(struct iommu_domain *domain, } /* lv1ent_large(ent) == true here */ - if (size < LPAGE_SIZE) { + if (WARN_ON(size < LPAGE_SIZE)) { err_pgsize = LPAGE_SIZE; goto err; } @@ -929,9 +925,8 @@ done: err: spin_unlock_irqrestore(&priv->pgtablelock, flags); - WARN(1, - "%s: Failed due to size(%#zx) @ %#x is smaller than page size %#zx\n", - __func__, size, iova, err_pgsize); + pr_err("%s: Failed: size(%#zx) @ %#x is smaller than page size %#zx\n", + __func__, size, iova, err_pgsize); return 0; } |