staging: gasket: page table: fix function param line continuation style
Fix multi-line alignment formatting to look like:
int ret = long_function_name(device, VARIABLE1, VARIABLE2,
VARIABLE3, VARIABLE4);
Many of these TODO items were previously cleaned up during the conversion
to standard logging functions.
Signed-off-by: Todd Poynor <toddpoynor@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Todd Poynor
Greg Kroah-Hartman
parent
3e84508313
commit
e8c7f19981
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@ -215,11 +215,10 @@ struct gasket_page_table {
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};
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/* See gasket_page_table.h for description. */
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int gasket_page_table_init(
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struct gasket_page_table **ppg_tbl,
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const struct gasket_bar_data *bar_data,
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const struct gasket_page_table_config *page_table_config,
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struct device *device, struct pci_dev *pci_dev)
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int gasket_page_table_init(struct gasket_page_table **ppg_tbl,
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const struct gasket_bar_data *bar_data,
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const struct gasket_page_table_config *page_table_config,
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struct device *device, struct pci_dev *pci_dev)
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{
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ulong bytes;
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struct gasket_page_table *pg_tbl;
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@ -276,10 +275,10 @@ int gasket_page_table_init(
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pg_tbl->extended_flag = 0;
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}
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pg_tbl->num_active_pages = 0;
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pg_tbl->base_slot = (u64 __iomem *)&(
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bar_data->virt_base[page_table_config->base_reg]);
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pg_tbl->extended_offset_reg = (u64 __iomem *)&(
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bar_data->virt_base[page_table_config->extended_reg]);
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pg_tbl->base_slot =
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(u64 __iomem *)&bar_data->virt_base[page_table_config->base_reg];
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pg_tbl->extended_offset_reg =
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(u64 __iomem *)&bar_data->virt_base[page_table_config->extended_reg];
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pg_tbl->device = get_device(device);
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pg_tbl->pci_dev = pci_dev_get(pci_dev);
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@ -292,8 +291,8 @@ int gasket_page_table_init(
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* Check if a range of PTEs is free.
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* The page table mutex must be held by the caller.
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*/
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static bool gasket_is_pte_range_free(
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struct gasket_page_table_entry *ptes, uint num_entries)
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static bool gasket_is_pte_range_free(struct gasket_page_table_entry *ptes,
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uint num_entries)
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{
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int i;
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@ -309,9 +308,9 @@ static bool gasket_is_pte_range_free(
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* Free a second level page [sub]table.
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* The page table mutex must be held before this call.
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*/
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static void gasket_free_extended_subtable(
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struct gasket_page_table *pg_tbl, struct gasket_page_table_entry *pte,
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u64 __iomem *slot)
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static void gasket_free_extended_subtable(struct gasket_page_table *pg_tbl,
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struct gasket_page_table_entry *pte,
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u64 __iomem *slot)
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{
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/* Release the page table from the driver */
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pte->status = PTE_FREE;
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@ -337,8 +336,8 @@ static void gasket_free_extended_subtable(
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* Actually perform collection.
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* The page table mutex must be held by the caller.
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*/
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static void gasket_page_table_garbage_collect_nolock(
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struct gasket_page_table *pg_tbl)
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static void
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gasket_page_table_garbage_collect_nolock(struct gasket_page_table *pg_tbl)
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{
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struct gasket_page_table_entry *pte;
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u64 __iomem *slot;
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@ -351,10 +350,10 @@ static void gasket_page_table_garbage_collect_nolock(
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pte < pg_tbl->entries + pg_tbl->config.total_entries;
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pte++, slot++) {
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if (pte->status == PTE_INUSE) {
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if (gasket_is_pte_range_free(
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pte->sublevel, GASKET_PAGES_PER_SUBTABLE))
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gasket_free_extended_subtable(
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pg_tbl, pte, slot);
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if (gasket_is_pte_range_free(pte->sublevel,
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GASKET_PAGES_PER_SUBTABLE))
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gasket_free_extended_subtable(pg_tbl, pte,
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slot);
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}
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}
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}
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@ -384,8 +383,8 @@ void gasket_page_table_cleanup(struct gasket_page_table *pg_tbl)
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}
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/* See gasket_page_table.h for description. */
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int gasket_page_table_partition(
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struct gasket_page_table *pg_tbl, uint num_simple_entries)
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int gasket_page_table_partition(struct gasket_page_table *pg_tbl,
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uint num_simple_entries)
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{
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int i, start;
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@ -445,10 +444,10 @@ static int is_coherent(struct gasket_page_table *pg_tbl, ulong host_addr)
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* an extended mapping, these will be within a second-level page table
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* allocated by the host and so must have their __iomem attribute casted away.
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*/
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static int gasket_perform_mapping(
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struct gasket_page_table *pg_tbl, struct gasket_page_table_entry *ptes,
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u64 __iomem *slots, ulong host_addr, uint num_pages,
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int is_simple_mapping)
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static int gasket_perform_mapping(struct gasket_page_table *pg_tbl,
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struct gasket_page_table_entry *ptes,
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u64 __iomem *slots, ulong host_addr,
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uint num_pages, int is_simple_mapping)
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{
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int ret;
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ulong offset;
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@ -470,8 +469,8 @@ static int gasket_perform_mapping(
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ptes[i].dma_addr = pg_tbl->coherent_pages[0].paddr +
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off + i * PAGE_SIZE;
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} else {
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ret = get_user_pages_fast(
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page_addr - offset, 1, 1, &page);
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ret = get_user_pages_fast(page_addr - offset, 1, 1,
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&page);
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if (ret <= 0) {
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dev_err(pg_tbl->device,
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@ -532,8 +531,8 @@ static int gasket_perform_mapping(
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* Return the index of the page for the address in the simple table.
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* Does not perform validity checking.
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*/
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static int gasket_simple_page_idx(
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struct gasket_page_table *pg_tbl, ulong dev_addr)
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static int gasket_simple_page_idx(struct gasket_page_table *pg_tbl,
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ulong dev_addr)
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{
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return (dev_addr >> GASKET_SIMPLE_PAGE_SHIFT) &
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(pg_tbl->config.total_entries - 1);
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@ -543,8 +542,8 @@ static int gasket_simple_page_idx(
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* Return the level 0 page index for the given address.
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* Does not perform validity checking.
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*/
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static ulong gasket_extended_lvl0_page_idx(
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struct gasket_page_table *pg_tbl, ulong dev_addr)
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static ulong gasket_extended_lvl0_page_idx(struct gasket_page_table *pg_tbl,
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ulong dev_addr)
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{
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return (dev_addr >> GASKET_EXTENDED_LVL0_SHIFT) &
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((1 << GASKET_EXTENDED_LVL0_WIDTH) - 1);
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@ -554,8 +553,8 @@ static ulong gasket_extended_lvl0_page_idx(
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* Return the level 1 page index for the given address.
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* Does not perform validity checking.
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*/
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static ulong gasket_extended_lvl1_page_idx(
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struct gasket_page_table *pg_tbl, ulong dev_addr)
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static ulong gasket_extended_lvl1_page_idx(struct gasket_page_table *pg_tbl,
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ulong dev_addr)
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{
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return (dev_addr >> GASKET_EXTENDED_LVL1_SHIFT) &
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(GASKET_PAGES_PER_SUBTABLE - 1);
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@ -565,12 +564,12 @@ static ulong gasket_extended_lvl1_page_idx(
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* Allocate page table entries in a simple table.
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* The page table mutex must be held by the caller.
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*/
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static int gasket_alloc_simple_entries(
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struct gasket_page_table *pg_tbl, ulong dev_addr, uint num_pages)
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static int gasket_alloc_simple_entries(struct gasket_page_table *pg_tbl,
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ulong dev_addr, uint num_pages)
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{
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if (!gasket_is_pte_range_free(
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pg_tbl->entries + gasket_simple_page_idx(pg_tbl, dev_addr),
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num_pages))
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if (!gasket_is_pte_range_free(pg_tbl->entries +
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gasket_simple_page_idx(pg_tbl, dev_addr),
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num_pages))
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return -EBUSY;
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return 0;
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@ -593,9 +592,10 @@ static bool gasket_release_page(struct page *page)
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* Unmap and release mapped pages.
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* The page table mutex must be held by the caller.
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*/
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static void gasket_perform_unmapping(
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struct gasket_page_table *pg_tbl, struct gasket_page_table_entry *ptes,
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u64 __iomem *slots, uint num_pages, int is_simple_mapping)
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static void gasket_perform_unmapping(struct gasket_page_table *pg_tbl,
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struct gasket_page_table_entry *ptes,
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u64 __iomem *slots, uint num_pages,
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int is_simple_mapping)
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{
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int i;
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/*
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@ -631,8 +631,8 @@ static void gasket_perform_unmapping(
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* Unmap and release pages mapped to simple addresses.
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* The page table mutex must be held by the caller.
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*/
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static void gasket_unmap_simple_pages(
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struct gasket_page_table *pg_tbl, ulong dev_addr, uint num_pages)
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static void gasket_unmap_simple_pages(struct gasket_page_table *pg_tbl,
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ulong dev_addr, uint num_pages)
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{
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uint slot = gasket_simple_page_idx(pg_tbl, dev_addr);
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@ -644,8 +644,8 @@ static void gasket_unmap_simple_pages(
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* Unmap and release buffers to extended addresses.
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* The page table mutex must be held by the caller.
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*/
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static void gasket_unmap_extended_pages(
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struct gasket_page_table *pg_tbl, ulong dev_addr, uint num_pages)
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static void gasket_unmap_extended_pages(struct gasket_page_table *pg_tbl,
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ulong dev_addr, uint num_pages)
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{
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uint slot_idx, remain, len;
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struct gasket_page_table_entry *pte;
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@ -663,9 +663,9 @@ static void gasket_unmap_extended_pages(
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if (pte->status == PTE_INUSE) {
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slot_base = (u64 __iomem *)(page_address(pte->page) +
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pte->offset);
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gasket_perform_unmapping(
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pg_tbl, pte->sublevel + slot_idx,
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slot_base + slot_idx, len, 0);
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gasket_perform_unmapping(pg_tbl,
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pte->sublevel + slot_idx,
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slot_base + slot_idx, len, 0);
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}
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remain -= len;
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@ -675,8 +675,8 @@ static void gasket_unmap_extended_pages(
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}
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/* Evaluates to nonzero if the specified virtual address is simple. */
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static inline bool gasket_addr_is_simple(
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struct gasket_page_table *pg_tbl, ulong addr)
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static inline bool gasket_addr_is_simple(struct gasket_page_table *pg_tbl,
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ulong addr)
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{
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return !((addr) & (pg_tbl)->extended_flag);
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}
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@ -693,9 +693,9 @@ static inline bool gasket_addr_is_simple(
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* Extended page 1000, offset 511:
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* Input (1, 1000, 512), Output 0x8003E81FF
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*/
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static ulong gasket_components_to_dev_address(
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struct gasket_page_table *pg_tbl, int is_simple, uint page_index,
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uint offset)
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static ulong gasket_components_to_dev_address(struct gasket_page_table *pg_tbl,
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int is_simple, uint page_index,
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uint offset)
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{
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ulong lvl0_index, lvl1_index;
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@ -726,15 +726,15 @@ static ulong gasket_components_to_dev_address(
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* and that the requested page range starts and ends within the set of
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* currently-partitioned simple pages.
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*/
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static bool gasket_is_simple_dev_addr_bad(
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struct gasket_page_table *pg_tbl, ulong dev_addr, uint num_pages)
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static bool gasket_is_simple_dev_addr_bad(struct gasket_page_table *pg_tbl,
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ulong dev_addr, uint num_pages)
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{
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ulong page_offset = dev_addr & (PAGE_SIZE - 1);
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ulong page_index =
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(dev_addr / PAGE_SIZE) & (pg_tbl->config.total_entries - 1);
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if (gasket_components_to_dev_address(
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pg_tbl, 1, page_index, page_offset) != dev_addr) {
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if (gasket_components_to_dev_address(pg_tbl, 1, page_index,
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page_offset) != dev_addr) {
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dev_err(pg_tbl->device, "address is invalid, 0x%lX\n",
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dev_addr);
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return true;
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@ -764,8 +764,8 @@ static bool gasket_is_simple_dev_addr_bad(
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* offset) and that the requested page range starts and ends within the set of
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* currently-partitioned extended pages.
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*/
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static bool gasket_is_extended_dev_addr_bad(
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struct gasket_page_table *pg_tbl, ulong dev_addr, uint num_pages)
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static bool gasket_is_extended_dev_addr_bad(struct gasket_page_table *pg_tbl,
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ulong dev_addr, uint num_pages)
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{
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/* Starting byte index of dev_addr into the first mapped page */
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ulong page_offset = dev_addr & (PAGE_SIZE - 1);
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@ -792,8 +792,8 @@ static bool gasket_is_extended_dev_addr_bad(
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num_lvl0_pages = (num_pages + GASKET_PAGES_PER_SUBTABLE - 1) /
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GASKET_PAGES_PER_SUBTABLE;
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if (gasket_components_to_dev_address(
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pg_tbl, 0, page_global_idx, page_offset) != dev_addr) {
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if (gasket_components_to_dev_address(pg_tbl, 0, page_global_idx,
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page_offset) != dev_addr) {
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dev_err(pg_tbl->device, "address is invalid: 0x%lx\n",
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dev_addr);
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return true;
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@ -821,8 +821,8 @@ static bool gasket_is_extended_dev_addr_bad(
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* Non-locking entry to unmapping routines.
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* The page table mutex must be held by the caller.
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*/
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static void gasket_page_table_unmap_nolock(
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struct gasket_page_table *pg_tbl, ulong dev_addr, uint num_pages)
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static void gasket_page_table_unmap_nolock(struct gasket_page_table *pg_tbl,
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ulong dev_addr, uint num_pages)
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{
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if (!num_pages)
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return;
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@ -837,9 +837,9 @@ static void gasket_page_table_unmap_nolock(
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* Allocate and map pages to simple addresses.
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* If there is an error, no pages are mapped.
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*/
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static int gasket_map_simple_pages(
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struct gasket_page_table *pg_tbl, ulong host_addr, ulong dev_addr,
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uint num_pages)
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static int gasket_map_simple_pages(struct gasket_page_table *pg_tbl,
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ulong host_addr, ulong dev_addr,
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uint num_pages)
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{
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int ret;
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uint slot_idx = gasket_simple_page_idx(pg_tbl, dev_addr);
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@ -852,9 +852,9 @@ static int gasket_map_simple_pages(
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return ret;
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}
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ret = gasket_perform_mapping(
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pg_tbl, pg_tbl->entries + slot_idx,
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pg_tbl->base_slot + slot_idx, host_addr, num_pages, 1);
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ret = gasket_perform_mapping(pg_tbl, pg_tbl->entries + slot_idx,
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pg_tbl->base_slot + slot_idx, host_addr,
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num_pages, 1);
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if (ret) {
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gasket_page_table_unmap_nolock(pg_tbl, dev_addr, num_pages);
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@ -867,9 +867,9 @@ static int gasket_map_simple_pages(
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* Allocate a second level page table.
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* The page table mutex must be held by the caller.
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*/
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static int gasket_alloc_extended_subtable(
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struct gasket_page_table *pg_tbl, struct gasket_page_table_entry *pte,
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u64 __iomem *slot)
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static int gasket_alloc_extended_subtable(struct gasket_page_table *pg_tbl,
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struct gasket_page_table_entry *pte,
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u64 __iomem *slot)
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{
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ulong page_addr, subtable_bytes;
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dma_addr_t dma_addr;
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@ -924,8 +924,8 @@ static int gasket_alloc_extended_subtable(
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*
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* The page table mutex must be held by the caller.
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*/
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static int gasket_alloc_extended_entries(
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struct gasket_page_table *pg_tbl, ulong dev_addr, uint num_entries)
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static int gasket_alloc_extended_entries(struct gasket_page_table *pg_tbl,
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ulong dev_addr, uint num_entries)
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{
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int ret = 0;
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uint remain, subtable_slot_idx, len;
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@ -951,8 +951,8 @@ static int gasket_alloc_extended_entries(
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return ret;
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}
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} else {
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if (!gasket_is_pte_range_free(
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pte->sublevel + subtable_slot_idx, len))
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if (!gasket_is_pte_range_free(pte->sublevel +
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subtable_slot_idx, len))
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return -EBUSY;
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}
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@ -969,9 +969,9 @@ static int gasket_alloc_extended_entries(
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* gasket_map_extended_pages - Get and map buffers to extended addresses.
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* If there is an error, no pages are mapped.
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*/
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static int gasket_map_extended_pages(
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struct gasket_page_table *pg_tbl, ulong host_addr, ulong dev_addr,
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uint num_pages)
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static int gasket_map_extended_pages(struct gasket_page_table *pg_tbl,
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ulong host_addr, ulong dev_addr,
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uint num_pages)
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{
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int ret;
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ulong dev_addr_end;
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@ -1003,12 +1003,12 @@ static int gasket_map_extended_pages(
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slot_base =
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(u64 __iomem *)(page_address(pte->page) + pte->offset);
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ret = gasket_perform_mapping(
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pg_tbl, pte->sublevel + slot_idx, slot_base + slot_idx,
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host_addr, len, 0);
|
||||
ret = gasket_perform_mapping(pg_tbl, pte->sublevel + slot_idx,
|
||||
slot_base + slot_idx, host_addr,
|
||||
len, 0);
|
||||
if (ret) {
|
||||
gasket_page_table_unmap_nolock(
|
||||
pg_tbl, dev_addr, num_pages);
|
||||
gasket_page_table_unmap_nolock(pg_tbl, dev_addr,
|
||||
num_pages);
|
||||
return ret;
|
||||
}
|
||||
|
||||
|
|
@ -1029,9 +1029,8 @@ static int gasket_map_extended_pages(
|
|||
*
|
||||
* The page table mutex is held for the entire operation.
|
||||
*/
|
||||
int gasket_page_table_map(
|
||||
struct gasket_page_table *pg_tbl, ulong host_addr, ulong dev_addr,
|
||||
uint num_pages)
|
||||
int gasket_page_table_map(struct gasket_page_table *pg_tbl, ulong host_addr,
|
||||
ulong dev_addr, uint num_pages)
|
||||
{
|
||||
int ret;
|
||||
|
||||
|
|
@ -1041,11 +1040,11 @@ int gasket_page_table_map(
|
|||
mutex_lock(&pg_tbl->mutex);
|
||||
|
||||
if (gasket_addr_is_simple(pg_tbl, dev_addr)) {
|
||||
ret = gasket_map_simple_pages(
|
||||
pg_tbl, host_addr, dev_addr, num_pages);
|
||||
ret = gasket_map_simple_pages(pg_tbl, host_addr, dev_addr,
|
||||
num_pages);
|
||||
} else {
|
||||
ret = gasket_map_extended_pages(
|
||||
pg_tbl, host_addr, dev_addr, num_pages);
|
||||
ret = gasket_map_extended_pages(pg_tbl, host_addr, dev_addr,
|
||||
num_pages);
|
||||
}
|
||||
|
||||
mutex_unlock(&pg_tbl->mutex);
|
||||
|
|
@ -1067,8 +1066,8 @@ EXPORT_SYMBOL(gasket_page_table_map);
|
|||
*
|
||||
* The page table mutex is held for the entire operation.
|
||||
*/
|
||||
void gasket_page_table_unmap(
|
||||
struct gasket_page_table *pg_tbl, ulong dev_addr, uint num_pages)
|
||||
void gasket_page_table_unmap(struct gasket_page_table *pg_tbl, ulong dev_addr,
|
||||
uint num_pages)
|
||||
{
|
||||
if (!num_pages)
|
||||
return;
|
||||
|
|
@ -1081,12 +1080,15 @@ EXPORT_SYMBOL(gasket_page_table_unmap);
|
|||
|
||||
static void gasket_page_table_unmap_all_nolock(struct gasket_page_table *pg_tbl)
|
||||
{
|
||||
gasket_unmap_simple_pages(
|
||||
pg_tbl, gasket_components_to_dev_address(pg_tbl, 1, 0, 0),
|
||||
pg_tbl->num_simple_entries);
|
||||
gasket_unmap_extended_pages(
|
||||
pg_tbl, gasket_components_to_dev_address(pg_tbl, 0, 0, 0),
|
||||
pg_tbl->num_extended_entries * GASKET_PAGES_PER_SUBTABLE);
|
||||
gasket_unmap_simple_pages(pg_tbl,
|
||||
gasket_components_to_dev_address(pg_tbl, 1, 0,
|
||||
0),
|
||||
pg_tbl->num_simple_entries);
|
||||
gasket_unmap_extended_pages(pg_tbl,
|
||||
gasket_components_to_dev_address(pg_tbl, 0,
|
||||
0, 0),
|
||||
pg_tbl->num_extended_entries *
|
||||
GASKET_PAGES_PER_SUBTABLE);
|
||||
}
|
||||
|
||||
/* See gasket_page_table.h for description. */
|
||||
|
|
@ -1189,8 +1191,8 @@ bool gasket_page_table_is_dev_addr_bad(
|
|||
}
|
||||
|
||||
if (gasket_addr_is_simple(pg_tbl, dev_addr))
|
||||
return gasket_is_simple_dev_addr_bad(
|
||||
pg_tbl, dev_addr, num_pages);
|
||||
return gasket_is_simple_dev_addr_bad(pg_tbl, dev_addr,
|
||||
num_pages);
|
||||
return gasket_is_extended_dev_addr_bad(pg_tbl, dev_addr, num_pages);
|
||||
}
|
||||
EXPORT_SYMBOL(gasket_page_table_is_dev_addr_bad);
|
||||
|
|
|
|||
|
|
@ -46,11 +46,10 @@ struct gasket_page_table;
|
|||
*
|
||||
* Returns 0 on success, a negative error code otherwise.
|
||||
*/
|
||||
int gasket_page_table_init(
|
||||
struct gasket_page_table **ppg_tbl,
|
||||
const struct gasket_bar_data *bar_data,
|
||||
const struct gasket_page_table_config *page_table_config,
|
||||
struct device *device, struct pci_dev *pci_dev);
|
||||
int gasket_page_table_init(struct gasket_page_table **ppg_tbl,
|
||||
const struct gasket_bar_data *bar_data,
|
||||
const struct gasket_page_table_config *page_table_config,
|
||||
struct device *device, struct pci_dev *pci_dev);
|
||||
|
||||
/*
|
||||
* Deallocate and cleanup page table data.
|
||||
|
|
@ -77,8 +76,8 @@ void gasket_page_table_cleanup(struct gasket_page_table *page_table);
|
|||
* Returns 0 if successful, or non-zero if the page table entries
|
||||
* are not free.
|
||||
*/
|
||||
int gasket_page_table_partition(
|
||||
struct gasket_page_table *page_table, uint num_simple_entries);
|
||||
int gasket_page_table_partition(struct gasket_page_table *page_table,
|
||||
uint num_simple_entries);
|
||||
|
||||
/*
|
||||
* Get and map [host] user space pages into device memory.
|
||||
|
|
@ -106,8 +105,8 @@ int gasket_page_table_map(struct gasket_page_table *page_table, ulong host_addr,
|
|||
*
|
||||
* Description: The inverse of gasket_map_pages. Unmaps pages from the device.
|
||||
*/
|
||||
void gasket_page_table_unmap(
|
||||
struct gasket_page_table *page_table, ulong dev_addr, uint num_pages);
|
||||
void gasket_page_table_unmap(struct gasket_page_table *page_table,
|
||||
ulong dev_addr, uint num_pages);
|
||||
|
||||
/*
|
||||
* Unmap ALL host pages from device memory.
|
||||
|
|
@ -146,9 +145,9 @@ void gasket_page_table_garbage_collect(struct gasket_page_table *page_table);
|
|||
* Returns 0 if successful, -1 for an error. The page pointer
|
||||
* and offset are returned through the pointers, if successful.
|
||||
*/
|
||||
int gasket_page_table_lookup_page(
|
||||
struct gasket_page_table *page_table, ulong dev_addr,
|
||||
struct page **page, ulong *poffset);
|
||||
int gasket_page_table_lookup_page(struct gasket_page_table *page_table,
|
||||
ulong dev_addr, struct page **page,
|
||||
ulong *poffset);
|
||||
|
||||
/*
|
||||
* Checks validity for input addrs and size.
|
||||
|
|
@ -163,9 +162,9 @@ int gasket_page_table_lookup_page(
|
|||
*
|
||||
* Returns true if the mapping is bad, false otherwise.
|
||||
*/
|
||||
bool gasket_page_table_are_addrs_bad(
|
||||
struct gasket_page_table *page_table, ulong host_addr, ulong dev_addr,
|
||||
ulong bytes);
|
||||
bool gasket_page_table_are_addrs_bad(struct gasket_page_table *page_table,
|
||||
ulong host_addr, ulong dev_addr,
|
||||
ulong bytes);
|
||||
|
||||
/*
|
||||
* Checks validity for input dev addr and size.
|
||||
|
|
@ -179,8 +178,8 @@ bool gasket_page_table_are_addrs_bad(
|
|||
*
|
||||
* Returns true if the address is bad, false otherwise.
|
||||
*/
|
||||
bool gasket_page_table_is_dev_addr_bad(
|
||||
struct gasket_page_table *page_table, ulong dev_addr, ulong bytes);
|
||||
bool gasket_page_table_is_dev_addr_bad(struct gasket_page_table *page_table,
|
||||
ulong dev_addr, ulong bytes);
|
||||
|
||||
/*
|
||||
* Gets maximum size for the given page table.
|
||||
|
|
|
|||
Loading…
Reference in New Issue