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powerpc/iommu: Update constant names to reflect their hardcoded page size

Browse Source 
The powerpc iommu uses a hardcoded page size of 4K. This patch changes
the name of the IOMMU_PAGE_* macros to reflect the hardcoded values. A
future patch will use the existing names to support dynamic page
sizes.

Signed-off-by: Alistair Popple <alistair@popple.id.au>
Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
This commit is contained in:
Alistair Popple 2013-12-09 18:17:01 +11:00 committed by Benjamin Herrenschmidt
parent fee26f6d5d
commit e589a4404f
11 changed files with 94 additions and 92 deletions
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10
arch/powerpc/include/asm/iommu.h
View File

@ -30,10 +30,10 @@
#include <asm/machdep.h>
#include <asm/types.h>
#define IOMMU_PAGE_SHIFT 12
#define IOMMU_PAGE_SIZE (ASM_CONST(1) << IOMMU_PAGE_SHIFT)
#define IOMMU_PAGE_MASK (~((1 << IOMMU_PAGE_SHIFT) - 1))
#define IOMMU_PAGE_ALIGN(addr) _ALIGN_UP(addr, IOMMU_PAGE_SIZE)
#define IOMMU_PAGE_SHIFT_4K 12
#define IOMMU_PAGE_SIZE_4K (ASM_CONST(1) << IOMMU_PAGE_SHIFT_4K)
#define IOMMU_PAGE_MASK_4K (~((1 << IOMMU_PAGE_SHIFT_4K) - 1))
#define IOMMU_PAGE_ALIGN_4K(addr) _ALIGN_UP(addr, IOMMU_PAGE_SIZE_4K)
/* Boot time flags */
extern int iommu_is_off;
@ -42,7 +42,7 @@ extern int iommu_force_on;
/* Pure 2^n version of get_order */
static __inline__ __attribute_const__ int get_iommu_order(unsigned long size)
{
return __ilog2((size - 1) >> IOMMU_PAGE_SHIFT) + 1;
return __ilog2((size - 1) >> IOMMU_PAGE_SHIFT_4K) + 1;
}

4
arch/powerpc/kernel/dma-iommu.c
View File

@ -83,10 +83,10 @@ static int dma_iommu_dma_supported(struct device *dev, u64 mask)
return 0;
}
if (tbl->it_offset > (mask >> IOMMU_PAGE_SHIFT)) {
if (tbl->it_offset > (mask >> IOMMU_PAGE_SHIFT_4K)) {
dev_info(dev, "Warning: IOMMU offset too big for device mask\n");
dev_info(dev, "mask: 0x%08llx, table offset: 0x%08lx\n",
mask, tbl->it_offset << IOMMU_PAGE_SHIFT);
mask, tbl->it_offset << IOMMU_PAGE_SHIFT_4K);
return 0;
} else
return 1;

78
arch/powerpc/kernel/iommu.c
View File

@ -251,14 +251,14 @@ again:
if (dev)
boundary_size = ALIGN(dma_get_seg_boundary(dev) + 1,
1 << IOMMU_PAGE_SHIFT);
1 << IOMMU_PAGE_SHIFT_4K);
else
boundary_size = ALIGN(1UL << 32, 1 << IOMMU_PAGE_SHIFT);
boundary_size = ALIGN(1UL << 32, 1 << IOMMU_PAGE_SHIFT_4K);
/* 4GB boundary for iseries_hv_alloc and iseries_hv_map */
n = iommu_area_alloc(tbl->it_map, limit, start, npages,
tbl->it_offset, boundary_size >> IOMMU_PAGE_SHIFT,
align_mask);
tbl->it_offset, boundary_size >> IOMMU_PAGE_SHIFT_4K,
align_mask);
if (n == -1) {
if (likely(pass == 0)) {
/* First try the pool from the start */
@ -320,12 +320,12 @@ static dma_addr_t iommu_alloc(struct device *dev, struct iommu_table *tbl,
return DMA_ERROR_CODE;
entry += tbl->it_offset; /* Offset into real TCE table */
ret = entry << IOMMU_PAGE_SHIFT; /* Set the return dma address */
ret = entry << IOMMU_PAGE_SHIFT_4K; /* Set the return dma address */
/* Put the TCEs in the HW table */
build_fail = ppc_md.tce_build(tbl, entry, npages,
(unsigned long)page & IOMMU_PAGE_MASK,
direction, attrs);
(unsigned long)page & IOMMU_PAGE_MASK_4K,
direction, attrs);
/* ppc_md.tce_build() only returns non-zero for transient errors.
* Clean up the table bitmap in this case and return
@ -352,7 +352,7 @@ static bool iommu_free_check(struct iommu_table *tbl, dma_addr_t dma_addr,
{
unsigned long entry, free_entry;
entry = dma_addr >> IOMMU_PAGE_SHIFT;
entry = dma_addr >> IOMMU_PAGE_SHIFT_4K;
free_entry = entry - tbl->it_offset;
if (((free_entry + npages) > tbl->it_size) ||
@ -401,7 +401,7 @@ static void __iommu_free(struct iommu_table *tbl, dma_addr_t dma_addr,
unsigned long flags;
struct iommu_pool *pool;
entry = dma_addr >> IOMMU_PAGE_SHIFT;
entry = dma_addr >> IOMMU_PAGE_SHIFT_4K;
free_entry = entry - tbl->it_offset;
pool = get_pool(tbl, free_entry);
@ -468,13 +468,13 @@ int iommu_map_sg(struct device *dev, struct iommu_table *tbl,
}
/* Allocate iommu entries for that segment */
vaddr = (unsigned long) sg_virt(s);
npages = iommu_num_pages(vaddr, slen, IOMMU_PAGE_SIZE);
npages = iommu_num_pages(vaddr, slen, IOMMU_PAGE_SIZE_4K);
align = 0;
if (IOMMU_PAGE_SHIFT < PAGE_SHIFT && slen >= PAGE_SIZE &&
if (IOMMU_PAGE_SHIFT_4K < PAGE_SHIFT && slen >= PAGE_SIZE &&
(vaddr & ~PAGE_MASK) == 0)
align = PAGE_SHIFT - IOMMU_PAGE_SHIFT;
align = PAGE_SHIFT - IOMMU_PAGE_SHIFT_4K;
entry = iommu_range_alloc(dev, tbl, npages, &handle,
mask >> IOMMU_PAGE_SHIFT, align);
mask >> IOMMU_PAGE_SHIFT_4K, align);
DBG(" - vaddr: %lx, size: %lx\n", vaddr, slen);
@ -489,16 +489,16 @@ int iommu_map_sg(struct device *dev, struct iommu_table *tbl,
/* Convert entry to a dma_addr_t */
entry += tbl->it_offset;
dma_addr = entry << IOMMU_PAGE_SHIFT;
dma_addr |= (s->offset & ~IOMMU_PAGE_MASK);
dma_addr = entry << IOMMU_PAGE_SHIFT_4K;
dma_addr |= (s->offset & ~IOMMU_PAGE_MASK_4K);
DBG(" - %lu pages, entry: %lx, dma_addr: %lx\n",
npages, entry, dma_addr);
/* Insert into HW table */
build_fail = ppc_md.tce_build(tbl, entry, npages,
vaddr & IOMMU_PAGE_MASK,
direction, attrs);
vaddr & IOMMU_PAGE_MASK_4K,
direction, attrs);
if(unlikely(build_fail))
goto failure;
@ -559,9 +559,9 @@ int iommu_map_sg(struct device *dev, struct iommu_table *tbl,
if (s->dma_length != 0) {
unsigned long vaddr, npages;
vaddr = s->dma_address & IOMMU_PAGE_MASK;
vaddr = s->dma_address & IOMMU_PAGE_MASK_4K;
npages = iommu_num_pages(s->dma_address, s->dma_length,
IOMMU_PAGE_SIZE);
IOMMU_PAGE_SIZE_4K);
__iommu_free(tbl, vaddr, npages);
s->dma_address = DMA_ERROR_CODE;
s->dma_length = 0;
@ -592,7 +592,7 @@ void iommu_unmap_sg(struct iommu_table *tbl, struct scatterlist *sglist,
if (sg->dma_length == 0)
break;
npages = iommu_num_pages(dma_handle, sg->dma_length,
IOMMU_PAGE_SIZE);
IOMMU_PAGE_SIZE_4K);
__iommu_free(tbl, dma_handle, npages);
sg = sg_next(sg);
}
@ -676,7 +676,7 @@ struct iommu_table *iommu_init_table(struct iommu_table *tbl, int nid)
set_bit(0, tbl->it_map);
/* We only split the IOMMU table if we have 1GB or more of space */
if ((tbl->it_size << IOMMU_PAGE_SHIFT) >= (1UL * 1024 * 1024 * 1024))
if ((tbl->it_size << IOMMU_PAGE_SHIFT_4K) >= (1UL * 1024 * 1024 * 1024))
tbl->nr_pools = IOMMU_NR_POOLS;
else
tbl->nr_pools = 1;
@ -768,16 +768,16 @@ dma_addr_t iommu_map_page(struct device *dev, struct iommu_table *tbl,
vaddr = page_address(page) + offset;
uaddr = (unsigned long)vaddr;
npages = iommu_num_pages(uaddr, size, IOMMU_PAGE_SIZE);
npages = iommu_num_pages(uaddr, size, IOMMU_PAGE_SIZE_4K);
if (tbl) {
align = 0;
if (IOMMU_PAGE_SHIFT < PAGE_SHIFT && size >= PAGE_SIZE &&
if (IOMMU_PAGE_SHIFT_4K < PAGE_SHIFT && size >= PAGE_SIZE &&
((unsigned long)vaddr & ~PAGE_MASK) == 0)
align = PAGE_SHIFT - IOMMU_PAGE_SHIFT;
align = PAGE_SHIFT - IOMMU_PAGE_SHIFT_4K;
dma_handle = iommu_alloc(dev, tbl, vaddr, npages, direction,
mask >> IOMMU_PAGE_SHIFT, align,
mask >> IOMMU_PAGE_SHIFT_4K, align,
attrs);
if (dma_handle == DMA_ERROR_CODE) {
if (printk_ratelimit()) {
@ -786,7 +786,7 @@ dma_addr_t iommu_map_page(struct device *dev, struct iommu_table *tbl,
npages);
}
} else
dma_handle |= (uaddr & ~IOMMU_PAGE_MASK);
dma_handle |= (uaddr & ~IOMMU_PAGE_MASK_4K);
}
return dma_handle;
@ -801,7 +801,7 @@ void iommu_unmap_page(struct iommu_table *tbl, dma_addr_t dma_handle,
BUG_ON(direction == DMA_NONE);
if (tbl) {
npages = iommu_num_pages(dma_handle, size, IOMMU_PAGE_SIZE);
npages = iommu_num_pages(dma_handle, size, IOMMU_PAGE_SIZE_4K);
iommu_free(tbl, dma_handle, npages);
}
}
@ -845,10 +845,10 @@ void *iommu_alloc_coherent(struct device *dev, struct iommu_table *tbl,
memset(ret, 0, size);
/* Set up tces to cover the allocated range */
nio_pages = size >> IOMMU_PAGE_SHIFT;
nio_pages = size >> IOMMU_PAGE_SHIFT_4K;
io_order = get_iommu_order(size);
mapping = iommu_alloc(dev, tbl, ret, nio_pages, DMA_BIDIRECTIONAL,
mask >> IOMMU_PAGE_SHIFT, io_order, NULL);
mask >> IOMMU_PAGE_SHIFT_4K, io_order, NULL);
if (mapping == DMA_ERROR_CODE) {
free_pages((unsigned long)ret, order);
return NULL;
@ -864,7 +864,7 @@ void iommu_free_coherent(struct iommu_table *tbl, size_t size,
unsigned int nio_pages;
size = PAGE_ALIGN(size);
nio_pages = size >> IOMMU_PAGE_SHIFT;
nio_pages = size >> IOMMU_PAGE_SHIFT_4K;
iommu_free(tbl, dma_handle, nio_pages);
size = PAGE_ALIGN(size);
free_pages((unsigned long)vaddr, get_order(size));
@ -935,10 +935,10 @@ int iommu_tce_clear_param_check(struct iommu_table *tbl,
if (tce_value)
return -EINVAL;
if (ioba & ~IOMMU_PAGE_MASK)
if (ioba & ~IOMMU_PAGE_MASK_4K)
return -EINVAL;
ioba >>= IOMMU_PAGE_SHIFT;
ioba >>= IOMMU_PAGE_SHIFT_4K;
if (ioba < tbl->it_offset)
return -EINVAL;
@ -955,13 +955,13 @@ int iommu_tce_put_param_check(struct iommu_table *tbl,
if (!(tce & (TCE_PCI_WRITE | TCE_PCI_READ)))
return -EINVAL;
if (tce & ~(IOMMU_PAGE_MASK | TCE_PCI_WRITE | TCE_PCI_READ))
if (tce & ~(IOMMU_PAGE_MASK_4K | TCE_PCI_WRITE | TCE_PCI_READ))
return -EINVAL;
if (ioba & ~IOMMU_PAGE_MASK)
if (ioba & ~IOMMU_PAGE_MASK_4K)
return -EINVAL;
ioba >>= IOMMU_PAGE_SHIFT;
ioba >>= IOMMU_PAGE_SHIFT_4K;
if (ioba < tbl->it_offset)
return -EINVAL;
@ -1037,7 +1037,7 @@ int iommu_tce_build(struct iommu_table *tbl, unsigned long entry,
/* if (unlikely(ret))
pr_err("iommu_tce: %s failed on hwaddr=%lx ioba=%lx kva=%lx ret=%d\n",
__func__, hwaddr, entry << IOMMU_PAGE_SHIFT,
__func__, hwaddr, entry << IOMMU_PAGE_SHIFT_4K,
hwaddr, ret); */
return ret;
@ -1049,14 +1049,14 @@ int iommu_put_tce_user_mode(struct iommu_table *tbl, unsigned long entry,
{
int ret;
struct page *page = NULL;
unsigned long hwaddr, offset = tce & IOMMU_PAGE_MASK & ~PAGE_MASK;
unsigned long hwaddr, offset = tce & IOMMU_PAGE_MASK_4K & ~PAGE_MASK;
enum dma_data_direction direction = iommu_tce_direction(tce);
ret = get_user_pages_fast(tce & PAGE_MASK, 1,
direction != DMA_TO_DEVICE, &page);
if (unlikely(ret != 1)) {
/* pr_err("iommu_tce: get_user_pages_fast failed tce=%lx ioba=%lx ret=%d\n",
tce, entry << IOMMU_PAGE_SHIFT, ret); */
tce, entry << IOMMU_PAGE_SHIFT_4K, ret); */
return -EFAULT;
}
hwaddr = (unsigned long) page_address(page) + offset;
@ -1067,7 +1067,7 @@ int iommu_put_tce_user_mode(struct iommu_table *tbl, unsigned long entry,
if (ret < 0)
pr_err("iommu_tce: %s failed ioba=%lx, tce=%lx, ret=%d\n",
__func__, entry << IOMMU_PAGE_SHIFT, tce, ret);
__func__, entry << IOMMU_PAGE_SHIFT_4K, tce, ret);
return ret;
}

19
arch/powerpc/kernel/vio.c
View File

@ -520,14 +520,14 @@ static dma_addr_t vio_dma_iommu_map_page(struct device *dev, struct page *page,
struct vio_dev *viodev = to_vio_dev(dev);
dma_addr_t ret = DMA_ERROR_CODE;
if (vio_cmo_alloc(viodev, roundup(size, IOMMU_PAGE_SIZE))) {
if (vio_cmo_alloc(viodev, roundup(size, IOMMU_PAGE_SIZE_4K))) {
atomic_inc(&viodev->cmo.allocs_failed);
return ret;
}
ret = dma_iommu_ops.map_page(dev, page, offset, size, direction, attrs);
if (unlikely(dma_mapping_error(dev, ret))) {
vio_cmo_dealloc(viodev, roundup(size, IOMMU_PAGE_SIZE));
vio_cmo_dealloc(viodev, roundup(size, IOMMU_PAGE_SIZE_4K));
atomic_inc(&viodev->cmo.allocs_failed);
}
@ -543,7 +543,7 @@ static void vio_dma_iommu_unmap_page(struct device *dev, dma_addr_t dma_handle,
dma_iommu_ops.unmap_page(dev, dma_handle, size, direction, attrs);
vio_cmo_dealloc(viodev, roundup(size, IOMMU_PAGE_SIZE));
vio_cmo_dealloc(viodev, roundup(size, IOMMU_PAGE_SIZE_4K));
}
static int vio_dma_iommu_map_sg(struct device *dev, struct scatterlist *sglist,
@ -556,7 +556,7 @@ static int vio_dma_iommu_map_sg(struct device *dev, struct scatterlist *sglist,
size_t alloc_size = 0;
for (sgl = sglist; count < nelems; count++, sgl++)
alloc_size += roundup(sgl->length, IOMMU_PAGE_SIZE);
alloc_size += roundup(sgl->length, IOMMU_PAGE_SIZE_4K);
if (vio_cmo_alloc(viodev, alloc_size)) {
atomic_inc(&viodev->cmo.allocs_failed);
@ -572,7 +572,7 @@ static int vio_dma_iommu_map_sg(struct device *dev, struct scatterlist *sglist,
}
for (sgl = sglist, count = 0; count < ret; count++, sgl++)
alloc_size -= roundup(sgl->dma_length, IOMMU_PAGE_SIZE);
alloc_size -= roundup(sgl->dma_length, IOMMU_PAGE_SIZE_4K);
if (alloc_size)
vio_cmo_dealloc(viodev, alloc_size);
@ -590,7 +590,7 @@ static void vio_dma_iommu_unmap_sg(struct device *dev,
int count = 0;
for (sgl = sglist; count < nelems; count++, sgl++)
alloc_size += roundup(sgl->dma_length, IOMMU_PAGE_SIZE);
alloc_size += roundup(sgl->dma_length, IOMMU_PAGE_SIZE_4K);
dma_iommu_ops.unmap_sg(dev, sglist, nelems, direction, attrs);
@ -736,7 +736,8 @@ static int vio_cmo_bus_probe(struct vio_dev *viodev)
return -EINVAL;
}
viodev->cmo.desired = IOMMU_PAGE_ALIGN(viodrv->get_desired_dma(viodev));
viodev->cmo.desired =
IOMMU_PAGE_ALIGN_4K(viodrv->get_desired_dma(viodev));
if (viodev->cmo.desired < VIO_CMO_MIN_ENT)
viodev->cmo.desired = VIO_CMO_MIN_ENT;
size = VIO_CMO_MIN_ENT;
@ -1176,9 +1177,9 @@ static struct iommu_table *vio_build_iommu_table(struct vio_dev *dev)
&tbl->it_index, &offset, &size);
/* TCE table size - measured in tce entries */
tbl->it_size = size >> IOMMU_PAGE_SHIFT;
tbl->it_size = size >> IOMMU_PAGE_SHIFT_4K;
/* offset for VIO should always be 0 */
tbl->it_offset = offset >> IOMMU_PAGE_SHIFT;
tbl->it_offset = offset >> IOMMU_PAGE_SHIFT_4K;
tbl->it_busno = 0;
tbl->it_type = TCE_VB;
tbl->it_blocksize = 16;

12
arch/powerpc/platforms/cell/iommu.c
View File

@ -197,7 +197,7 @@ static int tce_build_cell(struct iommu_table *tbl, long index, long npages,
io_pte = (unsigned long *)tbl->it_base + (index - tbl->it_offset);
for (i = 0; i < npages; i++, uaddr += IOMMU_PAGE_SIZE)
for (i = 0; i < npages; i++, uaddr += IOMMU_PAGE_SIZE_4K)
io_pte[i] = base_pte | (__pa(uaddr) & CBE_IOPTE_RPN_Mask);
mb();
@ -430,7 +430,7 @@ static void cell_iommu_setup_hardware(struct cbe_iommu *iommu,
{
cell_iommu_setup_stab(iommu, base, size, 0, 0);
iommu->ptab = cell_iommu_alloc_ptab(iommu, base, size, 0, 0,
IOMMU_PAGE_SHIFT);
IOMMU_PAGE_SHIFT_4K);
cell_iommu_enable_hardware(iommu);
}
@ -487,8 +487,8 @@ cell_iommu_setup_window(struct cbe_iommu *iommu, struct device_node *np,
window->table.it_blocksize = 16;
window->table.it_base = (unsigned long)iommu->ptab;
window->table.it_index = iommu->nid;
window->table.it_offset = (offset >> IOMMU_PAGE_SHIFT) + pte_offset;
window->table.it_size = size >> IOMMU_PAGE_SHIFT;
window->table.it_offset = (offset >> IOMMU_PAGE_SHIFT_4K) + pte_offset;
window->table.it_size = size >> IOMMU_PAGE_SHIFT_4K;
iommu_init_table(&window->table, iommu->nid);
@ -773,7 +773,7 @@ static void __init cell_iommu_init_one(struct device_node *np,
/* Setup the iommu_table */
cell_iommu_setup_window(iommu, np, base, size,
offset >> IOMMU_PAGE_SHIFT);
offset >> IOMMU_PAGE_SHIFT_4K);
}
static void __init cell_disable_iommus(void)
@ -1122,7 +1122,7 @@ static int __init cell_iommu_fixed_mapping_init(void)
cell_iommu_setup_stab(iommu, dbase, dsize, fbase, fsize);
iommu->ptab = cell_iommu_alloc_ptab(iommu, dbase, dsize, 0, 0,
IOMMU_PAGE_SHIFT);
IOMMU_PAGE_SHIFT_4K);
cell_iommu_setup_fixed_ptab(iommu, np, dbase, dsize,
fbase, fsize);
cell_iommu_enable_hardware(iommu);

4
arch/powerpc/platforms/powernv/pci.c
View File

@ -564,7 +564,7 @@ void pnv_pci_setup_iommu_table(struct iommu_table *tbl,
{
tbl->it_blocksize = 16;
tbl->it_base = (unsigned long)tce_mem;
tbl->it_offset = dma_offset >> IOMMU_PAGE_SHIFT;
tbl->it_offset = dma_offset >> IOMMU_PAGE_SHIFT_4K;
tbl->it_index = 0;
tbl->it_size = tce_size >> 3;
tbl->it_busno = 0;
@ -761,7 +761,7 @@ static struct notifier_block tce_iommu_bus_nb = {
static int __init tce_iommu_bus_notifier_init(void)
{
BUILD_BUG_ON(PAGE_SIZE < IOMMU_PAGE_SIZE);
BUILD_BUG_ON(PAGE_SIZE < IOMMU_PAGE_SIZE_4K);
bus_register_notifier(&pci_bus_type, &tce_iommu_bus_nb);
return 0;

8
arch/powerpc/platforms/pseries/iommu.c
View File

@ -488,7 +488,7 @@ static void iommu_table_setparms(struct pci_controller *phb,
tbl->it_busno = phb->bus->number;
/* Units of tce entries */
tbl->it_offset = phb->dma_window_base_cur >> IOMMU_PAGE_SHIFT;
tbl->it_offset = phb->dma_window_base_cur >> IOMMU_PAGE_SHIFT_4K;
/* Test if we are going over 2GB of DMA space */
if (phb->dma_window_base_cur + phb->dma_window_size > 0x80000000ul) {
@ -499,7 +499,7 @@ static void iommu_table_setparms(struct pci_controller *phb,
phb->dma_window_base_cur += phb->dma_window_size;
/* Set the tce table size - measured in entries */
tbl->it_size = phb->dma_window_size >> IOMMU_PAGE_SHIFT;
tbl->it_size = phb->dma_window_size >> IOMMU_PAGE_SHIFT_4K;
tbl->it_index = 0;
tbl->it_blocksize = 16;
@ -540,8 +540,8 @@ static void iommu_table_setparms_lpar(struct pci_controller *phb,
tbl->it_base = 0;
tbl->it_blocksize = 16;
tbl->it_type = TCE_PCI;
tbl->it_offset = offset >> IOMMU_PAGE_SHIFT;
tbl->it_size = size >> IOMMU_PAGE_SHIFT;
tbl->it_offset = offset >> IOMMU_PAGE_SHIFT_4K;
tbl->it_size = size >> IOMMU_PAGE_SHIFT_4K;
}
static void pci_dma_bus_setup_pSeries(struct pci_bus *bus)

4
arch/powerpc/platforms/pseries/setup.c
View File

@ -72,7 +72,7 @@
int CMO_PrPSP = -1;
int CMO_SecPSP = -1;
unsigned long CMO_PageSize = (ASM_CONST(1) << IOMMU_PAGE_SHIFT);
unsigned long CMO_PageSize = (ASM_CONST(1) << IOMMU_PAGE_SHIFT_4K);
EXPORT_SYMBOL(CMO_PageSize);
int fwnmi_active; /* TRUE if an FWNMI handler is present */
@ -569,7 +569,7 @@ void pSeries_cmo_feature_init(void)
{
char *ptr, *key, *value, *end;
int call_status;
int page_order = IOMMU_PAGE_SHIFT;
int page_order = IOMMU_PAGE_SHIFT_4K;
pr_debug(" -> fw_cmo_feature_init()\n");
spin_lock(&rtas_data_buf_lock);

10
arch/powerpc/platforms/wsp/wsp_pci.c
View File

@ -260,7 +260,7 @@ static int tce_build_wsp(struct iommu_table *tbl, long index, long npages,
*tcep = proto_tce | (rpn & TCE_RPN_MASK) << TCE_RPN_SHIFT;
dma_debug("[DMA] TCE %p set to 0x%016llx (dma addr: 0x%lx)\n",
tcep, *tcep, (tbl->it_offset + index) << IOMMU_PAGE_SHIFT);
tcep, *tcep, (tbl->it_offset + index) << IOMMU_PAGE_SHIFT_4K);
uaddr += TCE_PAGE_SIZE;
index++;
@ -381,8 +381,8 @@ static struct wsp_dma_table *wsp_pci_create_dma32_table(struct wsp_phb *phb,
/* Init bits and pieces */
tbl->table.it_blocksize = 16;
tbl->table.it_offset = addr >> IOMMU_PAGE_SHIFT;
tbl->table.it_size = size >> IOMMU_PAGE_SHIFT;
tbl->table.it_offset = addr >> IOMMU_PAGE_SHIFT_4K;
tbl->table.it_size = size >> IOMMU_PAGE_SHIFT_4K;
/*
* It's already blank but we clear it anyway.
@ -449,8 +449,8 @@ static void wsp_pci_dma_dev_setup(struct pci_dev *pdev)
if (table) {
pr_info("%s: Setup iommu: 32-bit DMA region 0x%08lx..0x%08lx\n",
pci_name(pdev),
table->table.it_offset << IOMMU_PAGE_SHIFT,
(table->table.it_offset << IOMMU_PAGE_SHIFT)
table->table.it_offset << IOMMU_PAGE_SHIFT_4K,
(table->table.it_offset << IOMMU_PAGE_SHIFT_4K)
+ phb->dma32_region_size - 1);
archdata->dma_data.iommu_table_base = &table->table;
return;

9
drivers/net/ethernet/ibm/ibmveth.c
View File

@ -1282,24 +1282,25 @@ static unsigned long ibmveth_get_desired_dma(struct vio_dev *vdev)
/* netdev inits at probe time along with the structures we need below*/
if (netdev == NULL)
return IOMMU_PAGE_ALIGN(IBMVETH_IO_ENTITLEMENT_DEFAULT);
return IOMMU_PAGE_ALIGN_4K(IBMVETH_IO_ENTITLEMENT_DEFAULT);
adapter = netdev_priv(netdev);
ret = IBMVETH_BUFF_LIST_SIZE + IBMVETH_FILT_LIST_SIZE;
ret += IOMMU_PAGE_ALIGN(netdev->mtu);
ret += IOMMU_PAGE_ALIGN_4K(netdev->mtu);
for (i = 0; i < IBMVETH_NUM_BUFF_POOLS; i++) {
/* add the size of the active receive buffers */
if (adapter->rx_buff_pool[i].active)
ret +=
adapter->rx_buff_pool[i].size *
IOMMU_PAGE_ALIGN(adapter->rx_buff_pool[i].
IOMMU_PAGE_ALIGN_4K(adapter->rx_buff_pool[i].
buff_size);
rxqentries += adapter->rx_buff_pool[i].size;
}
/* add the size of the receive queue entries */
ret += IOMMU_PAGE_ALIGN(rxqentries * sizeof(struct ibmveth_rx_q_entry));
ret += IOMMU_PAGE_ALIGN_4K(
rxqentries * sizeof(struct ibmveth_rx_q_entry));
return ret;
}

28
drivers/vfio/vfio_iommu_spapr_tce.c
View File

@ -81,7 +81,7 @@ static int tce_iommu_enable(struct tce_container *container)
* enforcing the limit based on the max that the guest can map.
*/
down_write(&current->mm->mmap_sem);
npages = (tbl->it_size << IOMMU_PAGE_SHIFT) >> PAGE_SHIFT;
npages = (tbl->it_size << IOMMU_PAGE_SHIFT_4K) >> PAGE_SHIFT;
locked = current->mm->locked_vm + npages;
lock_limit = rlimit(RLIMIT_MEMLOCK) >> PAGE_SHIFT;
if (locked > lock_limit && !capable(CAP_IPC_LOCK)) {
@ -110,7 +110,7 @@ static void tce_iommu_disable(struct tce_container *container)
down_write(&current->mm->mmap_sem);
current->mm->locked_vm -= (container->tbl->it_size <<
IOMMU_PAGE_SHIFT) >> PAGE_SHIFT;
IOMMU_PAGE_SHIFT_4K) >> PAGE_SHIFT;
up_write(&current->mm->mmap_sem);
}
@ -174,8 +174,8 @@ static long tce_iommu_ioctl(void *iommu_data,
if (info.argsz < minsz)
return -EINVAL;
info.dma32_window_start = tbl->it_offset << IOMMU_PAGE_SHIFT;
info.dma32_window_size = tbl->it_size << IOMMU_PAGE_SHIFT;
info.dma32_window_start = tbl->it_offset << IOMMU_PAGE_SHIFT_4K;
info.dma32_window_size = tbl->it_size << IOMMU_PAGE_SHIFT_4K;
info.flags = 0;
if (copy_to_user((void __user *)arg, &info, minsz))
@ -205,8 +205,8 @@ static long tce_iommu_ioctl(void *iommu_data,
VFIO_DMA_MAP_FLAG_WRITE))
return -EINVAL;
if ((param.size & ~IOMMU_PAGE_MASK) ||
(param.vaddr & ~IOMMU_PAGE_MASK))
if ((param.size & ~IOMMU_PAGE_MASK_4K) ||
(param.vaddr & ~IOMMU_PAGE_MASK_4K))
return -EINVAL;
/* iova is checked by the IOMMU API */
@ -220,17 +220,17 @@ static long tce_iommu_ioctl(void *iommu_data,
if (ret)
return ret;
for (i = 0; i < (param.size >> IOMMU_PAGE_SHIFT); ++i) {
for (i = 0; i < (param.size >> IOMMU_PAGE_SHIFT_4K); ++i) {
ret = iommu_put_tce_user_mode(tbl,
(param.iova >> IOMMU_PAGE_SHIFT) + i,
(param.iova >> IOMMU_PAGE_SHIFT_4K) + i,
tce);
if (ret)
break;
tce += IOMMU_PAGE_SIZE;
tce += IOMMU_PAGE_SIZE_4K;
}
if (ret)
iommu_clear_tces_and_put_pages(tbl,
param.iova >> IOMMU_PAGE_SHIFT, i);
param.iova >> IOMMU_PAGE_SHIFT_4K, i);
iommu_flush_tce(tbl);
@ -256,17 +256,17 @@ static long tce_iommu_ioctl(void *iommu_data,
if (param.flags)
return -EINVAL;
if (param.size & ~IOMMU_PAGE_MASK)
if (param.size & ~IOMMU_PAGE_MASK_4K)
return -EINVAL;
ret = iommu_tce_clear_param_check(tbl, param.iova, 0,
param.size >> IOMMU_PAGE_SHIFT);
param.size >> IOMMU_PAGE_SHIFT_4K);
if (ret)
return ret;
ret = iommu_clear_tces_and_put_pages(tbl,
param.iova >> IOMMU_PAGE_SHIFT,
param.size >> IOMMU_PAGE_SHIFT);
param.iova >> IOMMU_PAGE_SHIFT_4K,
param.size >> IOMMU_PAGE_SHIFT_4K);
iommu_flush_tce(tbl);
return ret;