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authorOhad Ben-Cohen <ohad@wizery.com>2011-08-17 15:29:46 -0400
committerJoerg Roedel <joerg.roedel@amd.com>2011-08-26 05:46:01 -0400
commit384fa675795ae3796dbc263e5d0f35b9a27d6462 (patch)
tree3570a652de62f5a35f8421ab03ead183319dfeab /drivers
parent5a6a5b1bcca3247e9161ccada488965c94012c48 (diff)
omap: iommu: remove unused exported API
Remove unused public APIs from OMAP's iommu driver. IOMMU functionality should be exposed only via the generic IOMMU API; this way drivers stay generic, and different IOMMU drivers don't need to duplicate similar functionalities. The rest of the API still exposed by OMAP's iommu will be evaluated and eventually either added to the generic IOMMU API (if relevant), or completely removed. The intention is that OMAP's iommu driver will eventually not expose any public API. Signed-off-by: Ohad Ben-Cohen <ohad@wizery.com> Acked-by: Hiroshi DOYU <Hiroshi.DOYU@nokia.com> Acked-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/iommu/omap-iommu.c59
1 files changed, 0 insertions, 59 deletions
diff --git a/drivers/iommu/omap-iommu.c b/drivers/iommu/omap-iommu.c
index 966093a2fcf5..d0f28e73be67 100644
--- a/drivers/iommu/omap-iommu.c
+++ b/drivers/iommu/omap-iommu.c
@@ -363,26 +363,6 @@ static void flush_iotlb_page(struct iommu *obj, u32 da)
363} 363}
364 364
365/** 365/**
366 * flush_iotlb_range - Clear an iommu tlb entries
367 * @obj: target iommu
368 * @start: iommu device virtual address(start)
369 * @end: iommu device virtual address(end)
370 *
371 * Clear an iommu tlb entry which includes 'da' address.
372 **/
373void flush_iotlb_range(struct iommu *obj, u32 start, u32 end)
374{
375 u32 da = start;
376
377 while (da < end) {
378 flush_iotlb_page(obj, da);
379 /* FIXME: Optimize for multiple page size */
380 da += IOPTE_SIZE;
381 }
382}
383EXPORT_SYMBOL_GPL(flush_iotlb_range);
384
385/**
386 * flush_iotlb_all - Clear all iommu tlb entries 366 * flush_iotlb_all - Clear all iommu tlb entries
387 * @obj: target iommu 367 * @obj: target iommu
388 **/ 368 **/
@@ -401,23 +381,6 @@ static void flush_iotlb_all(struct iommu *obj)
401 clk_disable(obj->clk); 381 clk_disable(obj->clk);
402} 382}
403 383
404/**
405 * iommu_set_twl - enable/disable table walking logic
406 * @obj: target iommu
407 * @on: enable/disable
408 *
409 * Function used to enable/disable TWL. If one wants to work
410 * exclusively with locked TLB entries and receive notifications
411 * for TLB miss then call this function to disable TWL.
412 */
413void iommu_set_twl(struct iommu *obj, bool on)
414{
415 clk_enable(obj->clk);
416 arch_iommu->set_twl(obj, on);
417 clk_disable(obj->clk);
418}
419EXPORT_SYMBOL_GPL(iommu_set_twl);
420
421#if defined(CONFIG_OMAP_IOMMU_DEBUG_MODULE) 384#if defined(CONFIG_OMAP_IOMMU_DEBUG_MODULE)
422 385
423ssize_t iommu_dump_ctx(struct iommu *obj, char *buf, ssize_t bytes) 386ssize_t iommu_dump_ctx(struct iommu *obj, char *buf, ssize_t bytes)
@@ -854,28 +817,6 @@ static int device_match_by_alias(struct device *dev, void *data)
854} 817}
855 818
856/** 819/**
857 * iommu_set_da_range - Set a valid device address range
858 * @obj: target iommu
859 * @start Start of valid range
860 * @end End of valid range
861 **/
862int iommu_set_da_range(struct iommu *obj, u32 start, u32 end)
863{
864
865 if (!obj)
866 return -EFAULT;
867
868 if (end < start || !PAGE_ALIGN(start | end))
869 return -EINVAL;
870
871 obj->da_start = start;
872 obj->da_end = end;
873
874 return 0;
875}
876EXPORT_SYMBOL_GPL(iommu_set_da_range);
877
878/**
879 * omap_find_iommu_device() - find an omap iommu device by name 820 * omap_find_iommu_device() - find an omap iommu device by name
880 * @name: name of the iommu device 821 * @name: name of the iommu device
881 * 822 *