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-rw-r--r--arch/x86/platform/Makefile1
-rw-r--r--arch/x86/platform/atom/punit_atom_debug.c2
-rw-r--r--arch/x86/platform/efi/efi-bgrt.c13
-rw-r--r--arch/x86/platform/efi/efi.c200
-rw-r--r--arch/x86/platform/efi/efi_64.c25
-rw-r--r--arch/x86/platform/efi/quirks.c127
-rw-r--r--arch/x86/platform/intel-mid/device_libs/Makefile4
-rw-r--r--arch/x86/platform/intel-mid/device_libs/platform_bcm43xx.c95
-rw-r--r--arch/x86/platform/intel-mid/device_libs/platform_mrfld_sd.c47
-rw-r--r--arch/x86/platform/intel-mid/intel-mid.c5
-rw-r--r--arch/x86/platform/intel-mid/pwr.c76
-rw-r--r--arch/x86/platform/mellanox/Makefile1
-rw-r--r--arch/x86/platform/mellanox/mlx-platform.c266
-rw-r--r--arch/x86/platform/uv/bios_uv.c7
-rw-r--r--arch/x86/platform/uv/tlb_uv.c184
15 files changed, 808 insertions, 245 deletions
diff --git a/arch/x86/platform/Makefile b/arch/x86/platform/Makefile
index 184842ef332e..3c3c19ea94df 100644
--- a/arch/x86/platform/Makefile
+++ b/arch/x86/platform/Makefile
@@ -8,6 +8,7 @@ obj-y += iris/
obj-y += intel/
obj-y += intel-mid/
obj-y += intel-quark/
+obj-y += mellanox/
obj-y += olpc/
obj-y += scx200/
obj-y += sfi/
diff --git a/arch/x86/platform/atom/punit_atom_debug.c b/arch/x86/platform/atom/punit_atom_debug.c
index 8ff7b9355416..d49d3be81953 100644
--- a/arch/x86/platform/atom/punit_atom_debug.c
+++ b/arch/x86/platform/atom/punit_atom_debug.c
@@ -155,7 +155,7 @@ static void punit_dbgfs_unregister(void)
static const struct x86_cpu_id intel_punit_cpu_ids[] = {
ICPU(INTEL_FAM6_ATOM_SILVERMONT1, punit_device_byt),
- ICPU(INTEL_FAM6_ATOM_MERRIFIELD1, punit_device_tng),
+ ICPU(INTEL_FAM6_ATOM_MERRIFIELD, punit_device_tng),
ICPU(INTEL_FAM6_ATOM_AIRMONT, punit_device_cht),
{}
};
diff --git a/arch/x86/platform/efi/efi-bgrt.c b/arch/x86/platform/efi/efi-bgrt.c
index 6a2f5691b1ab..6aad870e8962 100644
--- a/arch/x86/platform/efi/efi-bgrt.c
+++ b/arch/x86/platform/efi/efi-bgrt.c
@@ -82,21 +82,12 @@ void __init efi_bgrt_init(void)
}
bgrt_image_size = bmp_header.size;
- bgrt_image = kmalloc(bgrt_image_size, GFP_KERNEL | __GFP_NOWARN);
+ bgrt_image = memremap(bgrt_tab->image_address, bmp_header.size, MEMREMAP_WB);
if (!bgrt_image) {
- pr_notice("Ignoring BGRT: failed to allocate memory for image (wanted %zu bytes)\n",
- bgrt_image_size);
- return;
- }
-
- image = memremap(bgrt_tab->image_address, bmp_header.size, MEMREMAP_WB);
- if (!image) {
pr_notice("Ignoring BGRT: failed to map image memory\n");
- kfree(bgrt_image);
bgrt_image = NULL;
return;
}
- memcpy(bgrt_image, image, bgrt_image_size);
- memunmap(image);
+ efi_mem_reserve(bgrt_tab->image_address, bgrt_image_size);
}
diff --git a/arch/x86/platform/efi/efi.c b/arch/x86/platform/efi/efi.c
index 1fbb408e2e72..bf99aa7005eb 100644
--- a/arch/x86/platform/efi/efi.c
+++ b/arch/x86/platform/efi/efi.c
@@ -166,13 +166,15 @@ static void __init do_add_efi_memmap(void)
}
e820_add_region(start, size, e820_type);
}
- sanitize_e820_map(e820.map, ARRAY_SIZE(e820.map), &e820.nr_map);
+ sanitize_e820_map(e820->map, ARRAY_SIZE(e820->map), &e820->nr_map);
}
int __init efi_memblock_x86_reserve_range(void)
{
struct efi_info *e = &boot_params.efi_info;
+ struct efi_memory_map_data data;
phys_addr_t pmap;
+ int rv;
if (efi_enabled(EFI_PARAVIRT))
return 0;
@@ -187,11 +189,17 @@ int __init efi_memblock_x86_reserve_range(void)
#else
pmap = (e->efi_memmap | ((__u64)e->efi_memmap_hi << 32));
#endif
- efi.memmap.phys_map = pmap;
- efi.memmap.nr_map = e->efi_memmap_size /
- e->efi_memdesc_size;
- efi.memmap.desc_size = e->efi_memdesc_size;
- efi.memmap.desc_version = e->efi_memdesc_version;
+ data.phys_map = pmap;
+ data.size = e->efi_memmap_size;
+ data.desc_size = e->efi_memdesc_size;
+ data.desc_version = e->efi_memdesc_version;
+
+ rv = efi_memmap_init_early(&data);
+ if (rv)
+ return rv;
+
+ if (add_efi_memmap)
+ do_add_efi_memmap();
WARN(efi.memmap.desc_version != 1,
"Unexpected EFI_MEMORY_DESCRIPTOR version %ld",
@@ -218,19 +226,6 @@ void __init efi_print_memmap(void)
}
}
-void __init efi_unmap_memmap(void)
-{
- unsigned long size;
-
- clear_bit(EFI_MEMMAP, &efi.flags);
-
- size = efi.memmap.nr_map * efi.memmap.desc_size;
- if (efi.memmap.map) {
- early_memunmap(efi.memmap.map, size);
- efi.memmap.map = NULL;
- }
-}
-
static int __init efi_systab_init(void *phys)
{
if (efi_enabled(EFI_64BIT)) {
@@ -414,33 +409,6 @@ static int __init efi_runtime_init(void)
return 0;
}
-static int __init efi_memmap_init(void)
-{
- unsigned long addr, size;
-
- if (efi_enabled(EFI_PARAVIRT))
- return 0;
-
- /* Map the EFI memory map */
- size = efi.memmap.nr_map * efi.memmap.desc_size;
- addr = (unsigned long)efi.memmap.phys_map;
-
- efi.memmap.map = early_memremap(addr, size);
- if (efi.memmap.map == NULL) {
- pr_err("Could not map the memory map!\n");
- return -ENOMEM;
- }
-
- efi.memmap.map_end = efi.memmap.map + size;
-
- if (add_efi_memmap)
- do_add_efi_memmap();
-
- set_bit(EFI_MEMMAP, &efi.flags);
-
- return 0;
-}
-
void __init efi_init(void)
{
efi_char16_t *c16;
@@ -498,16 +466,14 @@ void __init efi_init(void)
if (!efi_runtime_supported())
pr_info("No EFI runtime due to 32/64-bit mismatch with kernel\n");
else {
- if (efi_runtime_disabled() || efi_runtime_init())
+ if (efi_runtime_disabled() || efi_runtime_init()) {
+ efi_memmap_unmap();
return;
+ }
}
- if (efi_memmap_init())
- return;
if (efi_enabled(EFI_DBG))
efi_print_memmap();
-
- efi_esrt_init();
}
void __init efi_late_init(void)
@@ -624,42 +590,6 @@ static void __init get_systab_virt_addr(efi_memory_desc_t *md)
}
}
-static void __init save_runtime_map(void)
-{
-#ifdef CONFIG_KEXEC_CORE
- unsigned long desc_size;
- efi_memory_desc_t *md;
- void *tmp, *q = NULL;
- int count = 0;
-
- if (efi_enabled(EFI_OLD_MEMMAP))
- return;
-
- desc_size = efi.memmap.desc_size;
-
- for_each_efi_memory_desc(md) {
- if (!(md->attribute & EFI_MEMORY_RUNTIME) ||
- (md->type == EFI_BOOT_SERVICES_CODE) ||
- (md->type == EFI_BOOT_SERVICES_DATA))
- continue;
- tmp = krealloc(q, (count + 1) * desc_size, GFP_KERNEL);
- if (!tmp)
- goto out;
- q = tmp;
-
- memcpy(q + count * desc_size, md, desc_size);
- count++;
- }
-
- efi_runtime_map_setup(q, count, desc_size);
- return;
-
-out:
- kfree(q);
- pr_err("Error saving runtime map, efi runtime on kexec non-functional!!\n");
-#endif
-}
-
static void *realloc_pages(void *old_memmap, int old_shift)
{
void *ret;
@@ -745,6 +675,46 @@ static void *efi_map_next_entry(void *entry)
return entry;
}
+static bool should_map_region(efi_memory_desc_t *md)
+{
+ /*
+ * Runtime regions always require runtime mappings (obviously).
+ */
+ if (md->attribute & EFI_MEMORY_RUNTIME)
+ return true;
+
+ /*
+ * 32-bit EFI doesn't suffer from the bug that requires us to
+ * reserve boot services regions, and mixed mode support
+ * doesn't exist for 32-bit kernels.
+ */
+ if (IS_ENABLED(CONFIG_X86_32))
+ return false;
+
+ /*
+ * Map all of RAM so that we can access arguments in the 1:1
+ * mapping when making EFI runtime calls.
+ */
+ if (IS_ENABLED(CONFIG_EFI_MIXED) && !efi_is_native()) {
+ if (md->type == EFI_CONVENTIONAL_MEMORY ||
+ md->type == EFI_LOADER_DATA ||
+ md->type == EFI_LOADER_CODE)
+ return true;
+ }
+
+ /*
+ * Map boot services regions as a workaround for buggy
+ * firmware that accesses them even when they shouldn't.
+ *
+ * See efi_{reserve,free}_boot_services().
+ */
+ if (md->type == EFI_BOOT_SERVICES_CODE ||
+ md->type == EFI_BOOT_SERVICES_DATA)
+ return true;
+
+ return false;
+}
+
/*
* Map the efi memory ranges of the runtime services and update new_mmap with
* virtual addresses.
@@ -761,13 +731,9 @@ static void * __init efi_map_regions(int *count, int *pg_shift)
p = NULL;
while ((p = efi_map_next_entry(p))) {
md = p;
- if (!(md->attribute & EFI_MEMORY_RUNTIME)) {
-#ifdef CONFIG_X86_64
- if (md->type != EFI_BOOT_SERVICES_CODE &&
- md->type != EFI_BOOT_SERVICES_DATA)
-#endif
- continue;
- }
+
+ if (!should_map_region(md))
+ continue;
efi_map_region(md);
get_systab_virt_addr(md);
@@ -803,7 +769,7 @@ static void __init kexec_enter_virtual_mode(void)
* non-native EFI
*/
if (!efi_is_native()) {
- efi_unmap_memmap();
+ efi_memmap_unmap();
clear_bit(EFI_RUNTIME_SERVICES, &efi.flags);
return;
}
@@ -823,7 +789,18 @@ static void __init kexec_enter_virtual_mode(void)
get_systab_virt_addr(md);
}
- save_runtime_map();
+ /*
+ * Unregister the early EFI memmap from efi_init() and install
+ * the new EFI memory map.
+ */
+ efi_memmap_unmap();
+
+ if (efi_memmap_init_late(efi.memmap.phys_map,
+ efi.memmap.desc_size * efi.memmap.nr_map)) {
+ pr_err("Failed to remap late EFI memory map\n");
+ clear_bit(EFI_RUNTIME_SERVICES, &efi.flags);
+ return;
+ }
BUG_ON(!efi.systab);
@@ -884,6 +861,7 @@ static void __init __efi_enter_virtual_mode(void)
int count = 0, pg_shift = 0;
void *new_memmap = NULL;
efi_status_t status;
+ phys_addr_t pa;
efi.systab = NULL;
@@ -901,11 +879,24 @@ static void __init __efi_enter_virtual_mode(void)
return;
}
- save_runtime_map();
+ pa = __pa(new_memmap);
+
+ /*
+ * Unregister the early EFI memmap from efi_init() and install
+ * the new EFI memory map that we are about to pass to the
+ * firmware via SetVirtualAddressMap().
+ */
+ efi_memmap_unmap();
+
+ if (efi_memmap_init_late(pa, efi.memmap.desc_size * count)) {
+ pr_err("Failed to remap late EFI memory map\n");
+ clear_bit(EFI_RUNTIME_SERVICES, &efi.flags);
+ return;
+ }
BUG_ON(!efi.systab);
- if (efi_setup_page_tables(__pa(new_memmap), 1 << pg_shift)) {
+ if (efi_setup_page_tables(pa, 1 << pg_shift)) {
clear_bit(EFI_RUNTIME_SERVICES, &efi.flags);
return;
}
@@ -917,14 +908,14 @@ static void __init __efi_enter_virtual_mode(void)
efi.memmap.desc_size * count,
efi.memmap.desc_size,
efi.memmap.desc_version,
- (efi_memory_desc_t *)__pa(new_memmap));
+ (efi_memory_desc_t *)pa);
} else {
status = efi_thunk_set_virtual_address_map(
efi_phys.set_virtual_address_map,
efi.memmap.desc_size * count,
efi.memmap.desc_size,
efi.memmap.desc_version,
- (efi_memory_desc_t *)__pa(new_memmap));
+ (efi_memory_desc_t *)pa);
}
if (status != EFI_SUCCESS) {
@@ -956,15 +947,6 @@ static void __init __efi_enter_virtual_mode(void)
efi_runtime_update_mappings();
efi_dump_pagetable();
- /*
- * We mapped the descriptor array into the EFI pagetable above
- * but we're not unmapping it here because if we're running in
- * EFI mixed mode we need all of memory to be accessible when
- * we pass parameters to the EFI runtime services in the
- * thunking code.
- */
- free_pages((unsigned long)new_memmap, pg_shift);
-
/* clean DUMMY object */
efi_delete_dummy_variable();
}
diff --git a/arch/x86/platform/efi/efi_64.c b/arch/x86/platform/efi/efi_64.c
index 677e29e29473..58b0f801f66f 100644
--- a/arch/x86/platform/efi/efi_64.c
+++ b/arch/x86/platform/efi/efi_64.c
@@ -85,7 +85,7 @@ pgd_t * __init efi_call_phys_prolog(void)
early_code_mapping_set_exec(1);
n_pgds = DIV_ROUND_UP((max_pfn << PAGE_SHIFT), PGDIR_SIZE);
- save_pgd = kmalloc(n_pgds * sizeof(pgd_t), GFP_KERNEL);
+ save_pgd = kmalloc_array(n_pgds, sizeof(*save_pgd), GFP_KERNEL);
for (pgd = 0; pgd < n_pgds; pgd++) {
save_pgd[pgd] = *pgd_offset_k(pgd * PGDIR_SIZE);
@@ -214,7 +214,6 @@ void efi_sync_low_kernel_mappings(void)
int __init efi_setup_page_tables(unsigned long pa_memmap, unsigned num_pages)
{
unsigned long pfn, text;
- efi_memory_desc_t *md;
struct page *page;
unsigned npages;
pgd_t *pgd;
@@ -245,28 +244,9 @@ int __init efi_setup_page_tables(unsigned long pa_memmap, unsigned num_pages)
* text and allocate a new stack because we can't rely on the
* stack pointer being < 4GB.
*/
- if (!IS_ENABLED(CONFIG_EFI_MIXED))
+ if (!IS_ENABLED(CONFIG_EFI_MIXED) || efi_is_native())
return 0;
- /*
- * Map all of RAM so that we can access arguments in the 1:1
- * mapping when making EFI runtime calls.
- */
- for_each_efi_memory_desc(md) {
- if (md->type != EFI_CONVENTIONAL_MEMORY &&
- md->type != EFI_LOADER_DATA &&
- md->type != EFI_LOADER_CODE)
- continue;
-
- pfn = md->phys_addr >> PAGE_SHIFT;
- npages = md->num_pages;
-
- if (kernel_map_pages_in_pgd(pgd, pfn, md->phys_addr, npages, _PAGE_RW)) {
- pr_err("Failed to map 1:1 memory\n");
- return 1;
- }
- }
-
page = alloc_page(GFP_KERNEL|__GFP_DMA32);
if (!page)
panic("Unable to allocate EFI runtime stack < 4GB\n");
@@ -359,6 +339,7 @@ void __init efi_map_region(efi_memory_desc_t *md)
*/
void __init efi_map_region_fixed(efi_memory_desc_t *md)
{
+ __map_region(md, md->phys_addr);
__map_region(md, md->virt_addr);
}
diff --git a/arch/x86/platform/efi/quirks.c b/arch/x86/platform/efi/quirks.c
index 89d1146f5a6f..10aca63a50d7 100644
--- a/arch/x86/platform/efi/quirks.c
+++ b/arch/x86/platform/efi/quirks.c
@@ -164,6 +164,75 @@ efi_status_t efi_query_variable_store(u32 attributes, unsigned long size,
EXPORT_SYMBOL_GPL(efi_query_variable_store);
/*
+ * The UEFI specification makes it clear that the operating system is
+ * free to do whatever it wants with boot services code after
+ * ExitBootServices() has been called. Ignoring this recommendation a
+ * significant bunch of EFI implementations continue calling into boot
+ * services code (SetVirtualAddressMap). In order to work around such
+ * buggy implementations we reserve boot services region during EFI
+ * init and make sure it stays executable. Then, after
+ * SetVirtualAddressMap(), it is discarded.
+ *
+ * However, some boot services regions contain data that is required
+ * by drivers, so we need to track which memory ranges can never be
+ * freed. This is done by tagging those regions with the
+ * EFI_MEMORY_RUNTIME attribute.
+ *
+ * Any driver that wants to mark a region as reserved must use
+ * efi_mem_reserve() which will insert a new EFI memory descriptor
+ * into efi.memmap (splitting existing regions if necessary) and tag
+ * it with EFI_MEMORY_RUNTIME.
+ */
+void __init efi_arch_mem_reserve(phys_addr_t addr, u64 size)
+{
+ phys_addr_t new_phys, new_size;
+ struct efi_mem_range mr;
+ efi_memory_desc_t md;
+ int num_entries;
+ void *new;
+
+ if (efi_mem_desc_lookup(addr, &md)) {
+ pr_err("Failed to lookup EFI memory descriptor for %pa\n", &addr);
+ return;
+ }
+
+ if (addr + size > md.phys_addr + (md.num_pages << EFI_PAGE_SHIFT)) {
+ pr_err("Region spans EFI memory descriptors, %pa\n", &addr);
+ return;
+ }
+
+ size += addr % EFI_PAGE_SIZE;
+ size = round_up(size, EFI_PAGE_SIZE);
+ addr = round_down(addr, EFI_PAGE_SIZE);
+
+ mr.range.start = addr;
+ mr.range.end = addr + size - 1;
+ mr.attribute = md.attribute | EFI_MEMORY_RUNTIME;
+
+ num_entries = efi_memmap_split_count(&md, &mr.range);
+ num_entries += efi.memmap.nr_map;
+
+ new_size = efi.memmap.desc_size * num_entries;
+
+ new_phys = memblock_alloc(new_size, 0);
+ if (!new_phys) {
+ pr_err("Could not allocate boot services memmap\n");
+ return;
+ }
+
+ new = early_memremap(new_phys, new_size);
+ if (!new) {
+ pr_err("Failed to map new boot services memmap\n");
+ return;
+ }
+
+ efi_memmap_insert(&efi.memmap, new, &mr);
+ early_memunmap(new, new_size);
+
+ efi_memmap_install(new_phys, num_entries);
+}
+
+/*
* Helper function for efi_reserve_boot_services() to figure out if we
* can free regions in efi_free_boot_services().
*
@@ -184,15 +253,6 @@ static bool can_free_region(u64 start, u64 size)
return true;
}
-/*
- * The UEFI specification makes it clear that the operating system is free to do
- * whatever it wants with boot services code after ExitBootServices() has been
- * called. Ignoring this recommendation a significant bunch of EFI implementations
- * continue calling into boot services code (SetVirtualAddressMap). In order to
- * work around such buggy implementations we reserve boot services region during
- * EFI init and make sure it stays executable. Then, after SetVirtualAddressMap(), it
-* is discarded.
-*/
void __init efi_reserve_boot_services(void)
{
efi_memory_desc_t *md;
@@ -249,7 +309,10 @@ void __init efi_reserve_boot_services(void)
void __init efi_free_boot_services(void)
{
+ phys_addr_t new_phys, new_size;
efi_memory_desc_t *md;
+ int num_entries = 0;
+ void *new, *new_md;
for_each_efi_memory_desc(md) {
unsigned long long start = md->phys_addr;
@@ -257,12 +320,16 @@ void __init efi_free_boot_services(void)
size_t rm_size;
if (md->type != EFI_BOOT_SERVICES_CODE &&
- md->type != EFI_BOOT_SERVICES_DATA)
+ md->type != EFI_BOOT_SERVICES_DATA) {
+ num_entries++;
continue;
+ }
/* Do not free, someone else owns it: */
- if (md->attribute & EFI_MEMORY_RUNTIME)
+ if (md->attribute & EFI_MEMORY_RUNTIME) {
+ num_entries++;
continue;
+ }
/*
* Nasty quirk: if all sub-1MB memory is used for boot
@@ -287,7 +354,41 @@ void __init efi_free_boot_services(void)
free_bootmem_late(start, size);
}
- efi_unmap_memmap();
+ new_size = efi.memmap.desc_size * num_entries;
+ new_phys = memblock_alloc(new_size, 0);
+ if (!new_phys) {
+ pr_err("Failed to allocate new EFI memmap\n");
+ return;
+ }
+
+ new = memremap(new_phys, new_size, MEMREMAP_WB);
+ if (!new) {
+ pr_err("Failed to map new EFI memmap\n");
+ return;
+ }
+
+ /*
+ * Build a new EFI memmap that excludes any boot services
+ * regions that are not tagged EFI_MEMORY_RUNTIME, since those
+ * regions have now been freed.
+ */
+ new_md = new;
+ for_each_efi_memory_desc(md) {
+ if (!(md->attribute & EFI_MEMORY_RUNTIME) &&
+ (md->type == EFI_BOOT_SERVICES_CODE ||
+ md->type == EFI_BOOT_SERVICES_DATA))
+ continue;
+
+ memcpy(new_md, md, efi.memmap.desc_size);
+ new_md += efi.memmap.desc_size;
+ }
+
+ memunmap(new);
+
+ if (efi_memmap_install(new_phys, num_entries)) {
+ pr_err("Could not install new EFI memmap\n");
+ return;
+ }
}
/*
@@ -365,7 +466,7 @@ void __init efi_apply_memmap_quirks(void)
*/
if (!efi_runtime_supported()) {
pr_info("Setup done, disabling due to 32/64-bit mismatch\n");
- efi_unmap_memmap();
+ efi_memmap_unmap();
}
/* UV2+ BIOS has a fix for this issue. UV1 still needs the quirk. */
diff --git a/arch/x86/platform/intel-mid/device_libs/Makefile b/arch/x86/platform/intel-mid/device_libs/Makefile
index fc135bf70511..429d08be7848 100644
--- a/arch/x86/platform/intel-mid/device_libs/Makefile
+++ b/arch/x86/platform/intel-mid/device_libs/Makefile
@@ -1,5 +1,9 @@
# Family-Level Interface Shim (FLIS)
obj-$(subst m,y,$(CONFIG_PINCTRL_MERRIFIELD)) += platform_mrfld_pinctrl.o
+# SDHCI Devices
+obj-$(subst m,y,$(CONFIG_MMC_SDHCI_PCI)) += platform_mrfld_sd.o
+# WiFi
+obj-$(subst m,y,$(CONFIG_BRCMFMAC_SDIO)) += platform_bcm43xx.o
# IPC Devices
obj-y += platform_ipc.o
obj-$(subst m,y,$(CONFIG_MFD_INTEL_MSIC)) += platform_msic.o
diff --git a/arch/x86/platform/intel-mid/device_libs/platform_bcm43xx.c b/arch/x86/platform/intel-mid/device_libs/platform_bcm43xx.c
new file mode 100644
index 000000000000..4392c15ed9e0
--- /dev/null
+++ b/arch/x86/platform/intel-mid/device_libs/platform_bcm43xx.c
@@ -0,0 +1,95 @@
+/*
+ * platform_bcm43xx.c: bcm43xx platform data initilization file
+ *
+ * (C) Copyright 2016 Intel Corporation
+ * Author: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; version 2
+ * of the License.
+ */
+
+#include <linux/gpio.h>
+#include <linux/platform_device.h>
+#include <linux/regulator/machine.h>
+#include <linux/regulator/fixed.h>
+#include <linux/sfi.h>
+
+#include <asm/intel-mid.h>
+
+#define WLAN_SFI_GPIO_IRQ_NAME "WLAN-interrupt"
+#define WLAN_SFI_GPIO_ENABLE_NAME "WLAN-enable"
+
+#define WLAN_DEV_NAME "0000:00:01.3"
+
+static struct regulator_consumer_supply bcm43xx_vmmc_supply = {
+ .dev_name = WLAN_DEV_NAME,
+ .supply = "vmmc",
+};
+
+static struct regulator_init_data bcm43xx_vmmc_data = {
+ .constraints = {
+ .valid_ops_mask = REGULATOR_CHANGE_STATUS,
+ },
+ .num_consumer_supplies = 1,
+ .consumer_supplies = &bcm43xx_vmmc_supply,
+};
+
+static struct fixed_voltage_config bcm43xx_vmmc = {
+ .supply_name = "bcm43xx-vmmc-regulator",
+ /*
+ * Announce 2.0V here to be compatible with SDIO specification. The
+ * real voltage and signaling are still 1.8V.
+ */
+ .microvolts = 2000000, /* 1.8V */
+ .gpio = -EINVAL,
+ .startup_delay = 250 * 1000, /* 250ms */
+ .enable_high = 1, /* active high */
+ .enabled_at_boot = 0, /* disabled at boot */
+ .init_data = &bcm43xx_vmmc_data,
+};
+
+static struct platform_device bcm43xx_vmmc_regulator = {
+ .name = "reg-fixed-voltage",
+ .id = PLATFORM_DEVID_AUTO,
+ .dev = {
+ .platform_data = &bcm43xx_vmmc,
+ },
+};
+
+static int __init bcm43xx_regulator_register(void)
+{
+ int ret;
+
+ bcm43xx_vmmc.gpio = get_gpio_by_name(WLAN_SFI_GPIO_ENABLE_NAME);
+ ret = platform_device_register(&bcm43xx_vmmc_regulator);
+ if (ret) {
+ pr_err("%s: vmmc regulator register failed\n", __func__);
+ return ret;
+ }
+
+ return 0;
+}
+
+static void __init *bcm43xx_platform_data(void *info)
+{
+ int ret;
+
+ ret = bcm43xx_regulator_register();
+ if (ret)
+ return NULL;
+
+ pr_info("Using generic wifi platform data\n");
+
+ /* For now it's empty */
+ return NULL;
+}
+
+static const struct devs_id bcm43xx_clk_vmmc_dev_id __initconst = {
+ .name = "bcm43xx_clk_vmmc",
+ .type = SFI_DEV_TYPE_SD,
+ .get_platform_data = &bcm43xx_platform_data,
+};
+
+sfi_device(bcm43xx_clk_vmmc_dev_id);
diff --git a/arch/x86/platform/intel-mid/device_libs/platform_mrfld_sd.c b/arch/x86/platform/intel-mid/device_libs/platform_mrfld_sd.c
new file mode 100644
index 000000000000..00c4a034ad93
--- /dev/null
+++ b/arch/x86/platform/intel-mid/device_libs/platform_mrfld_sd.c
@@ -0,0 +1,47 @@
+/*
+ * SDHCI platform data initilisation file
+ *
+ * (C) Copyright 2016 Intel Corporation
+ * Author: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; version 2
+ * of the License.
+ */
+
+#include <linux/init.h>
+#include <linux/pci.h>
+
+#include <linux/mmc/sdhci-pci-data.h>
+
+#include <asm/intel-mid.h>
+
+#define INTEL_MRFLD_SD 2
+#define INTEL_MRFLD_SD_CD_GPIO 77
+
+static struct sdhci_pci_data mrfld_sdhci_pci_data = {
+ .rst_n_gpio = -EINVAL,
+ .cd_gpio = INTEL_MRFLD_SD_CD_GPIO,
+};
+
+static struct sdhci_pci_data *
+mrfld_sdhci_pci_get_data(struct pci_dev *pdev, int slotno)
+{
+ unsigned int func = PCI_FUNC(pdev->devfn);
+
+ if (func == INTEL_MRFLD_SD)
+ return &mrfld_sdhci_pci_data;
+
+ return NULL;
+}
+
+static int __init mrfld_sd_init(void)
+{
+ if (intel_mid_identify_cpu() != INTEL_MID_CPU_CHIP_TANGIER)
+ return -ENODEV;
+
+ sdhci_pci_get_data = mrfld_sdhci_pci_get_data;
+ return 0;
+}
+arch_initcall(mrfld_sd_init);
diff --git a/arch/x86/platform/intel-mid/intel-mid.c b/arch/x86/platform/intel-mid/intel-mid.c
index ce119d2ba0d0..7850128f0026 100644
--- a/arch/x86/platform/intel-mid/intel-mid.c
+++ b/arch/x86/platform/intel-mid/intel-mid.c
@@ -70,6 +70,11 @@ EXPORT_SYMBOL_GPL(__intel_mid_cpu_chip);
static void intel_mid_power_off(void)
{
+ /* Shut down South Complex via PWRMU */
+ intel_mid_pwr_power_off();
+
+ /* Only for Tangier, the rest will ignore this command */
+ intel_scu_ipc_simple_command(IPCMSG_COLD_OFF, 1);
};
static void intel_mid_reboot(void)
diff --git a/arch/x86/platform/intel-mid/pwr.c b/arch/x86/platform/intel-mid/pwr.c
index c901a3423772..5d3b45ad1c03 100644
--- a/arch/x86/platform/intel-mid/pwr.c
+++ b/arch/x86/platform/intel-mid/pwr.c
@@ -44,7 +44,19 @@
/* Bits in PM_CMD */
#define PM_CMD_CMD(x) ((x) << 0)
#define PM_CMD_IOC (1 << 8)
-#define PM_CMD_D3cold (1 << 21)
+#define PM_CMD_CM_NOP (0 << 9)
+#define PM_CMD_CM_IMMEDIATE (1 << 9)
+#define PM_CMD_CM_DELAY (2 << 9)
+#define PM_CMD_CM_TRIGGER (3 << 9)
+
+/* System states */
+#define PM_CMD_SYS_STATE_S5 (5 << 16)
+
+/* Trigger variants */
+#define PM_CMD_CFG_TRIGGER_NC (3 << 19)
+
+/* Message to wait for TRIGGER_NC case */
+#define TRIGGER_NC_MSG_2 (2 << 22)
/* List of commands */
#define CMD_SET_CFG 0x01
@@ -137,7 +149,7 @@ static int mid_pwr_wait(struct mid_pwr *pwr)
static int mid_pwr_wait_for_cmd(struct mid_pwr *pwr, u8 cmd)
{
- writel(PM_CMD_CMD(cmd), pwr->regs + PM_CMD);
+ writel(PM_CMD_CMD(cmd) | PM_CMD_CM_IMMEDIATE, pwr->regs + PM_CMD);
return mid_pwr_wait(pwr);
}
@@ -260,6 +272,20 @@ int intel_mid_pci_set_power_state(struct pci_dev *pdev, pci_power_t state)
}
EXPORT_SYMBOL_GPL(intel_mid_pci_set_power_state);
+void intel_mid_pwr_power_off(void)
+{
+ struct mid_pwr *pwr = midpwr;
+ u32 cmd = PM_CMD_SYS_STATE_S5 |
+ PM_CMD_CMD(CMD_SET_CFG) |
+ PM_CMD_CM_TRIGGER |
+ PM_CMD_CFG_TRIGGER_NC |
+ TRIGGER_NC_MSG_2;
+
+ /* Send command to SCU */
+ writel(cmd, pwr->regs + PM_CMD);
+ mid_pwr_wait(pwr);
+}
+
int intel_mid_pwr_get_lss_id(struct pci_dev *pdev)
{
int vndr;
@@ -354,7 +380,7 @@ static int mid_pwr_probe(struct pci_dev *pdev, const struct pci_device_id *id)
return 0;
}
-static int mid_set_initial_state(struct mid_pwr *pwr)
+static int mid_set_initial_state(struct mid_pwr *pwr, const u32 *states)
{
unsigned int i, j;
int ret;
@@ -379,10 +405,10 @@ static int mid_set_initial_state(struct mid_pwr *pwr)
* NOTE: The actual device mapping is provided by a platform at run
* time using vendor capability of PCI configuration space.
*/
- mid_pwr_set_state(pwr, 0, 0xffffffff);
- mid_pwr_set_state(pwr, 1, 0xffffffff);
- mid_pwr_set_state(pwr, 2, 0xffffffff);
- mid_pwr_set_state(pwr, 3, 0xffffffff);
+ mid_pwr_set_state(pwr, 0, states[0]);
+ mid_pwr_set_state(pwr, 1, states[1]);
+ mid_pwr_set_state(pwr, 2, states[2]);
+ mid_pwr_set_state(pwr, 3, states[3]);
/* Send command to SCU */
ret = mid_pwr_wait_for_cmd(pwr, CMD_SET_CFG);
@@ -397,13 +423,41 @@ static int mid_set_initial_state(struct mid_pwr *pwr)
return 0;
}
-static const struct mid_pwr_device_info mid_info = {
- .set_initial_state = mid_set_initial_state,
+static int pnw_set_initial_state(struct mid_pwr *pwr)
+{
+ /* On Penwell SRAM must stay powered on */
+ const u32 states[] = {
+ 0xf00fffff, /* PM_SSC(0) */
+ 0xffffffff, /* PM_SSC(1) */
+ 0xffffffff, /* PM_SSC(2) */
+ 0xffffffff, /* PM_SSC(3) */
+ };
+ return mid_set_initial_state(pwr, states);
+}
+
+static int tng_set_initial_state(struct mid_pwr *pwr)
+{
+ const u32 states[] = {
+ 0xffffffff, /* PM_SSC(0) */
+ 0xffffffff, /* PM_SSC(1) */
+ 0xffffffff, /* PM_SSC(2) */
+ 0xffffffff, /* PM_SSC(3) */
+ };
+ return mid_set_initial_state(pwr, states);
+}
+
+static const struct mid_pwr_device_info pnw_info = {
+ .set_initial_state = pnw_set_initial_state,
+};
+
+static const struct mid_pwr_device_info tng_info = {
+ .set_initial_state = tng_set_initial_state,
};
+/* This table should be in sync with the one in drivers/pci/pci-mid.c */
static const struct pci_device_id mid_pwr_pci_ids[] = {
- { PCI_VDEVICE(INTEL, PCI_DEVICE_ID_PENWELL), (kernel_ulong_t)&mid_info },
- { PCI_VDEVICE(INTEL, PCI_DEVICE_ID_TANGIER), (kernel_ulong_t)&mid_info },
+ { PCI_VDEVICE(INTEL, PCI_DEVICE_ID_PENWELL), (kernel_ulong_t)&pnw_info },
+ { PCI_VDEVICE(INTEL, PCI_DEVICE_ID_TANGIER), (kernel_ulong_t)&tng_info },
{}
};
diff --git a/arch/x86/platform/mellanox/Makefile b/arch/x86/platform/mellanox/Makefile
new file mode 100644
index 000000000000..f43c93188a1d
--- /dev/null
+++ b/arch/x86/platform/mellanox/Makefile
@@ -0,0 +1 @@
+obj-$(CONFIG_MLX_PLATFORM) += mlx-platform.o
diff --git a/arch/x86/platform/mellanox/mlx-platform.c b/arch/x86/platform/mellanox/mlx-platform.c
new file mode 100644
index 000000000000..7dcfcca97399
--- /dev/null
+++ b/arch/x86/platform/mellanox/mlx-platform.c
@@ -0,0 +1,266 @@
+/*
+ * arch/x86/platform/mellanox/mlx-platform.c
+ * Copyright (c) 2016 Mellanox Technologies. All rights reserved.
+ * Copyright (c) 2016 Vadim Pasternak <vadimp@mellanox.com>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. Neither the names of the copyright holders nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <linux/device.h>
+#include <linux/dmi.h>
+#include <linux/i2c.h>
+#include <linux/i2c-mux.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/platform_data/i2c-mux-reg.h>
+
+#define MLX_PLAT_DEVICE_NAME "mlxplat"
+
+/* LPC bus IO offsets */
+#define MLXPLAT_CPLD_LPC_I2C_BASE_ADRR 0x2000
+#define MLXPLAT_CPLD_LPC_REG_BASE_ADRR 0x2500
+#define MLXPLAT_CPLD_LPC_IO_RANGE 0x100
+#define MLXPLAT_CPLD_LPC_I2C_CH1_OFF 0xdb
+#define MLXPLAT_CPLD_LPC_I2C_CH2_OFF 0xda
+#define MLXPLAT_CPLD_LPC_PIO_OFFSET 0x10000UL
+#define MLXPLAT_CPLD_LPC_REG1 ((MLXPLAT_CPLD_LPC_REG_BASE_ADRR + \
+ MLXPLAT_CPLD_LPC_I2C_CH1_OFF) | \
+ MLXPLAT_CPLD_LPC_PIO_OFFSET)
+#define MLXPLAT_CPLD_LPC_REG2 ((MLXPLAT_CPLD_LPC_REG_BASE_ADRR + \
+ MLXPLAT_CPLD_LPC_I2C_CH2_OFF) | \
+ MLXPLAT_CPLD_LPC_PIO_OFFSET)
+
+/* Start channel numbers */
+#define MLXPLAT_CPLD_CH1 2
+#define MLXPLAT_CPLD_CH2 10
+
+/* Number of LPC attached MUX platform devices */
+#define MLXPLAT_CPLD_LPC_MUX_DEVS 2
+
+/* mlxplat_priv - platform private data
+ * @pdev_i2c - i2c controller platform device
+ * @pdev_mux - array of mux platform devices
+ */
+struct mlxplat_priv {
+ struct platform_device *pdev_i2c;
+ struct platform_device *pdev_mux[MLXPLAT_CPLD_LPC_MUX_DEVS];
+};
+
+/* Regions for LPC I2C controller and LPC base register space */
+static const struct resource mlxplat_lpc_resources[] = {
+ [0] = DEFINE_RES_NAMED(MLXPLAT_CPLD_LPC_I2C_BASE_ADRR,
+ MLXPLAT_CPLD_LPC_IO_RANGE,
+ "mlxplat_cpld_lpc_i2c_ctrl", IORESOURCE_IO),
+ [1] = DEFINE_RES_NAMED(MLXPLAT_CPLD_LPC_REG_BASE_ADRR,
+ MLXPLAT_CPLD_LPC_IO_RANGE,
+ "mlxplat_cpld_lpc_regs",
+ IORESOURCE_IO),
+};
+
+/* Platform default channels */
+static const int mlxplat_default_channels[][8] = {
+ {
+ MLXPLAT_CPLD_CH1, MLXPLAT_CPLD_CH1 + 1, MLXPLAT_CPLD_CH1 + 2,
+ MLXPLAT_CPLD_CH1 + 3, MLXPLAT_CPLD_CH1 + 4, MLXPLAT_CPLD_CH1 +
+ 5, MLXPLAT_CPLD_CH1 + 6, MLXPLAT_CPLD_CH1 + 7
+ },
+ {
+ MLXPLAT_CPLD_CH2, MLXPLAT_CPLD_CH2 + 1, MLXPLAT_CPLD_CH2 + 2,
+ MLXPLAT_CPLD_CH2 + 3, MLXPLAT_CPLD_CH2 + 4, MLXPLAT_CPLD_CH2 +
+ 5, MLXPLAT_CPLD_CH2 + 6, MLXPLAT_CPLD_CH2 + 7
+ },
+};
+
+/* Platform channels for MSN21xx system family */
+static const int mlxplat_msn21xx_channels[] = { 1, 2, 3, 4, 5, 6, 7, 8 };
+
+/* Platform mux data */
+static struct i2c_mux_reg_platform_data mlxplat_mux_data[] = {
+ {
+ .parent = 1,
+ .base_nr = MLXPLAT_CPLD_CH1,
+ .write_only = 1,
+ .reg = (void __iomem *)MLXPLAT_CPLD_LPC_REG1,
+ .reg_size = 1,
+ .idle_in_use = 1,
+ },
+ {
+ .parent = 1,
+ .base_nr = MLXPLAT_CPLD_CH2,
+ .write_only = 1,
+ .reg = (void __iomem *)MLXPLAT_CPLD_LPC_REG2,
+ .reg_size = 1,
+ .idle_in_use = 1,
+ },
+
+};
+
+static struct platform_device *mlxplat_dev;
+
+static int __init mlxplat_dmi_default_matched(const struct dmi_system_id *dmi)
+{
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(mlxplat_mux_data); i++) {
+ mlxplat_mux_data[i].values = mlxplat_default_channels[i];
+ mlxplat_mux_data[i].n_values =
+ ARRAY_SIZE(mlxplat_default_channels[i]);
+ }
+
+ return 1;
+};
+
+static int __init mlxplat_dmi_msn21xx_matched(const struct dmi_system_id *dmi)
+{
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(mlxplat_mux_data); i++) {
+ mlxplat_mux_data[i].values = mlxplat_msn21xx_channels;
+ mlxplat_mux_data[i].n_values =
+ ARRAY_SIZE(mlxplat_msn21xx_channels);
+ }
+
+ return 1;
+};
+
+static struct dmi_system_id mlxplat_dmi_table[] __initdata = {
+ {
+ .callback = mlxplat_dmi_default_matched,
+ .matches = {
+ DMI_MATCH(DMI_BOARD_VENDOR, "Mellanox Technologies"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "MSN24"),
+ },
+ },
+ {
+ .callback = mlxplat_dmi_default_matched,
+ .matches = {
+ DMI_MATCH(DMI_BOARD_VENDOR, "Mellanox Technologies"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "MSN27"),
+ },
+ },
+ {
+ .callback = mlxplat_dmi_default_matched,
+ .matches = {
+ DMI_MATCH(DMI_BOARD_VENDOR, "Mellanox Technologies"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "MSB"),
+ },
+ },
+ {
+ .callback = mlxplat_dmi_default_matched,
+ .matches = {
+ DMI_MATCH(DMI_BOARD_VENDOR, "Mellanox Technologies"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "MSX"),
+ },
+ },
+ {
+ .callback = mlxplat_dmi_msn21xx_matched,
+ .matches = {
+ DMI_MATCH(DMI_BOARD_VENDOR, "Mellanox Technologies"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "MSN21"),
+ },
+ },
+ { }
+};
+
+static int __init mlxplat_init(void)
+{
+ struct mlxplat_priv *priv;
+ int i, err;
+
+ if (!dmi_check_system(mlxplat_dmi_table))
+ return -ENODEV;
+
+ mlxplat_dev = platform_device_register_simple(MLX_PLAT_DEVICE_NAME, -1,
+ mlxplat_lpc_resources,
+ ARRAY_SIZE(mlxplat_lpc_resources));
+
+ if (IS_ERR(mlxplat_dev))
+ return PTR_ERR(mlxplat_dev);
+
+ priv = devm_kzalloc(&mlxplat_dev->dev, sizeof(struct mlxplat_priv),
+ GFP_KERNEL);
+ if (!priv) {
+ err = -ENOMEM;
+ goto fail_alloc;
+ }
+ platform_set_drvdata(mlxplat_dev, priv);
+
+ priv->pdev_i2c = platform_device_register_simple("i2c_mlxcpld", -1,
+ NULL, 0);
+ if (IS_ERR(priv->pdev_i2c)) {
+ err = PTR_ERR(priv->pdev_i2c);
+ goto fail_alloc;
+ };
+
+ for (i = 0; i < ARRAY_SIZE(mlxplat_mux_data); i++) {
+ priv->pdev_mux[i] = platform_device_register_resndata(
+ &mlxplat_dev->dev,
+ "i2c-mux-reg", i, NULL,
+ 0, &mlxplat_mux_data[i],
+ sizeof(mlxplat_mux_data[i]));
+ if (IS_ERR(priv->pdev_mux[i])) {
+ err = PTR_ERR(priv->pdev_mux[i]);
+ goto fail_platform_mux_register;
+ }
+ }
+
+ return 0;
+
+fail_platform_mux_register:
+ for (i--; i > 0 ; i--)
+ platform_device_unregister(priv->pdev_mux[i]);
+ platform_device_unregister(priv->pdev_i2c);
+fail_alloc:
+ platform_device_unregister(mlxplat_dev);
+
+ return err;
+}
+module_init(mlxplat_init);
+
+static void __exit mlxplat_exit(void)
+{
+ struct mlxplat_priv *priv = platform_get_drvdata(mlxplat_dev);
+ int i;
+
+ for (i = ARRAY_SIZE(mlxplat_mux_data) - 1; i >= 0 ; i--)
+ platform_device_unregister(priv->pdev_mux[i]);
+
+ platform_device_unregister(priv->pdev_i2c);
+ platform_device_unregister(mlxplat_dev);
+}
+module_exit(mlxplat_exit);
+
+MODULE_AUTHOR("Vadim Pasternak (vadimp@mellanox.com)");
+MODULE_DESCRIPTION("Mellanox platform driver");
+MODULE_LICENSE("Dual BSD/GPL");
+MODULE_ALIAS("dmi:*:*Mellanox*:MSN24*:");
+MODULE_ALIAS("dmi:*:*Mellanox*:MSN27*:");
+MODULE_ALIAS("dmi:*:*Mellanox*:MSB*:");
+MODULE_ALIAS("dmi:*:*Mellanox*:MSX*:");
+MODULE_ALIAS("dmi:*:*Mellanox*:MSN21*:");
diff --git a/arch/x86/platform/uv/bios_uv.c b/arch/x86/platform/uv/bios_uv.c
index 23f2f3e41c7f..b4d5e95fe4df 100644
--- a/arch/x86/platform/uv/bios_uv.c
+++ b/arch/x86/platform/uv/bios_uv.c
@@ -149,11 +149,8 @@ EXPORT_SYMBOL_GPL(uv_bios_change_memprotect);
s64
uv_bios_reserved_page_pa(u64 buf, u64 *cookie, u64 *addr, u64 *len)
{
- s64 ret;
-
- ret = uv_bios_call_irqsave(UV_BIOS_GET_PARTITION_ADDR, (u64)cookie,
- (u64)addr, buf, (u64)len, 0);
- return ret;
+ return uv_bios_call_irqsave(UV_BIOS_GET_PARTITION_ADDR, (u64)cookie,
+ (u64)addr, buf, (u64)len, 0);
}
EXPORT_SYMBOL_GPL(uv_bios_reserved_page_pa);
diff --git a/arch/x86/platform/uv/tlb_uv.c b/arch/x86/platform/uv/tlb_uv.c
index fdb4d42b4ce5..9e42842e924a 100644
--- a/arch/x86/platform/uv/tlb_uv.c
+++ b/arch/x86/platform/uv/tlb_uv.c
@@ -24,6 +24,29 @@
#include <asm/irq_vectors.h>
#include <asm/timer.h>
+static struct bau_operations ops;
+
+static struct bau_operations uv123_bau_ops = {
+ .bau_gpa_to_offset = uv_gpa_to_offset,
+ .read_l_sw_ack = read_mmr_sw_ack,
+ .read_g_sw_ack = read_gmmr_sw_ack,
+ .write_l_sw_ack = write_mmr_sw_ack,
+ .write_g_sw_ack = write_gmmr_sw_ack,
+ .write_payload_first = write_mmr_payload_first,
+ .write_payload_last = write_mmr_payload_last,
+};
+
+static struct bau_operations uv4_bau_ops = {
+ .bau_gpa_to_offset = uv_gpa_to_soc_phys_ram,
+ .read_l_sw_ack = read_mmr_proc_sw_ack,
+ .read_g_sw_ack = read_gmmr_proc_sw_ack,
+ .write_l_sw_ack = write_mmr_proc_sw_ack,
+ .write_g_sw_ack = write_gmmr_proc_sw_ack,
+ .write_payload_first = write_mmr_proc_payload_first,
+ .write_payload_last = write_mmr_proc_payload_last,
+};
+
+
/* timeouts in nanoseconds (indexed by UVH_AGING_PRESCALE_SEL urgency7 30:28) */
static int timeout_base_ns[] = {
20,
@@ -55,16 +78,16 @@ static int congested_reps = CONGESTED_REPS;
static int disabled_period = DISABLED_PERIOD;
static struct tunables tunables[] = {
- {&max_concurr, MAX_BAU_CONCURRENT}, /* must be [0] */
- {&plugged_delay, PLUGGED_DELAY},
- {&plugsb4reset, PLUGSB4RESET},
- {&timeoutsb4reset, TIMEOUTSB4RESET},
- {&ipi_reset_limit, IPI_RESET_LIMIT},
- {&complete_threshold, COMPLETE_THRESHOLD},
- {&congested_respns_us, CONGESTED_RESPONSE_US},
- {&congested_reps, CONGESTED_REPS},
- {&disabled_period, DISABLED_PERIOD},
- {&giveup_limit, GIVEUP_LIMIT}
+ {&max_concurr, MAX_BAU_CONCURRENT}, /* must be [0] */
+ {&plugged_delay, PLUGGED_DELAY},
+ {&plugsb4reset, PLUGSB4RESET},
+ {&timeoutsb4reset, TIMEOUTSB4RESET},
+ {&ipi_reset_limit, IPI_RESET_LIMIT},
+ {&complete_threshold, COMPLETE_THRESHOLD},
+ {&congested_respns_us, CONGESTED_RESPONSE_US},
+ {&congested_reps, CONGESTED_REPS},
+ {&disabled_period, DISABLED_PERIOD},
+ {&giveup_limit, GIVEUP_LIMIT}
};
static struct dentry *tunables_dir;
@@ -216,7 +239,7 @@ static void reply_to_message(struct msg_desc *mdp, struct bau_control *bcp,
msg = mdp->msg;
if (!msg->canceled && do_acknowledge) {
dw = (msg->swack_vec << UV_SW_ACK_NPENDING) | msg->swack_vec;
- write_mmr_sw_ack(dw);
+ ops.write_l_sw_ack(dw);
}
msg->replied_to = 1;
msg->swack_vec = 0;
@@ -252,7 +275,7 @@ static void bau_process_retry_msg(struct msg_desc *mdp,
msg->swack_vec) == 0) &&
(msg2->sending_cpu == msg->sending_cpu) &&
(msg2->msg_type != MSG_NOOP)) {
- mmr = read_mmr_sw_ack();
+ mmr = ops.read_l_sw_ack();
msg_res = msg2->swack_vec;
/*
* This is a message retry; clear the resources held
@@ -270,7 +293,7 @@ static void bau_process_retry_msg(struct msg_desc *mdp,
stat->d_canceled++;
cancel_count++;
mr = (msg_res << UV_SW_ACK_NPENDING) | msg_res;
- write_mmr_sw_ack(mr);
+ ops.write_l_sw_ack(mr);
}
}
}
@@ -403,12 +426,12 @@ static void do_reset(void *ptr)
/*
* only reset the resource if it is still pending
*/
- mmr = read_mmr_sw_ack();
+ mmr = ops.read_l_sw_ack();
msg_res = msg->swack_vec;
mr = (msg_res << UV_SW_ACK_NPENDING) | msg_res;
if (mmr & msg_res) {
stat->d_rcanceled++;
- write_mmr_sw_ack(mr);
+ ops.write_l_sw_ack(mr);
}
}
}
@@ -580,11 +603,7 @@ static int uv1_wait_completion(struct bau_desc *bau_desc,
*/
static unsigned long uv2_3_read_status(unsigned long offset, int rshft, int desc)
{
- unsigned long descriptor_status;
-
- descriptor_status =
- ((read_lmmr(offset) >> rshft) & UV_ACT_STATUS_MASK) << 1;
- return descriptor_status;
+ return ((read_lmmr(offset) >> rshft) & UV_ACT_STATUS_MASK) << 1;
}
/*
@@ -1202,7 +1221,7 @@ void process_uv2_message(struct msg_desc *mdp, struct bau_control *bcp)
struct bau_pq_entry *msg = mdp->msg;
struct bau_pq_entry *other_msg;
- mmr_image = read_mmr_sw_ack();
+ mmr_image = ops.read_l_sw_ack();
swack_vec = msg->swack_vec;
if ((swack_vec & mmr_image) == 0) {
@@ -1431,7 +1450,7 @@ static int ptc_seq_show(struct seq_file *file, void *data)
/* destination side statistics */
seq_printf(file,
"%lx %ld %ld %ld %ld %ld %ld %ld %ld %ld %ld %ld\n",
- read_gmmr_sw_ack(uv_cpu_to_pnode(cpu)),
+ ops.read_g_sw_ack(uv_cpu_to_pnode(cpu)),
stat->d_requestee, cycles_2_us(stat->d_time),
stat->d_alltlb, stat->d_onetlb, stat->d_multmsg,
stat->d_nomsg, stat->d_retries, stat->d_canceled,
@@ -1497,16 +1516,16 @@ static ssize_t ptc_proc_write(struct file *file, const char __user *user,
}
if (kstrtol(optstr, 10, &input_arg) < 0) {
- printk(KERN_DEBUG "%s is invalid\n", optstr);
+ pr_debug("%s is invalid\n", optstr);
return -EINVAL;
}
if (input_arg == 0) {
elements = ARRAY_SIZE(stat_description);
- printk(KERN_DEBUG "# cpu: cpu number\n");
- printk(KERN_DEBUG "Sender statistics:\n");
+ pr_debug("# cpu: cpu number\n");
+ pr_debug("Sender statistics:\n");
for (i = 0; i < elements; i++)
- printk(KERN_DEBUG "%s\n", stat_description[i]);
+ pr_debug("%s\n", stat_description[i]);
} else if (input_arg == -1) {
for_each_present_cpu(cpu) {
stat = &per_cpu(ptcstats, cpu);
@@ -1554,7 +1573,7 @@ static int parse_tunables_write(struct bau_control *bcp, char *instr,
break;
}
if (cnt != e) {
- printk(KERN_INFO "bau tunable error: should be %d values\n", e);
+ pr_info("bau tunable error: should be %d values\n", e);
return -EINVAL;
}
@@ -1571,7 +1590,7 @@ static int parse_tunables_write(struct bau_control *bcp, char *instr,
continue;
}
if (val < 1 || val > bcp->cpus_in_uvhub) {
- printk(KERN_DEBUG
+ pr_debug(
"Error: BAU max concurrent %d is invalid\n",
val);
return -EINVAL;
@@ -1619,17 +1638,17 @@ static ssize_t tunables_write(struct file *file, const char __user *user,
for_each_present_cpu(cpu) {
bcp = &per_cpu(bau_control, cpu);
- bcp->max_concurr = max_concurr;
- bcp->max_concurr_const = max_concurr;
- bcp->plugged_delay = plugged_delay;
- bcp->plugsb4reset = plugsb4reset;
- bcp->timeoutsb4reset = timeoutsb4reset;
- bcp->ipi_reset_limit = ipi_reset_limit;
- bcp->complete_threshold = complete_threshold;
- bcp->cong_response_us = congested_respns_us;
- bcp->cong_reps = congested_reps;
- bcp->disabled_period = sec_2_cycles(disabled_period);
- bcp->giveup_limit = giveup_limit;
+ bcp->max_concurr = max_concurr;
+ bcp->max_concurr_const = max_concurr;
+ bcp->plugged_delay = plugged_delay;
+ bcp->plugsb4reset = plugsb4reset;
+ bcp->timeoutsb4reset = timeoutsb4reset;
+ bcp->ipi_reset_limit = ipi_reset_limit;
+ bcp->complete_threshold = complete_threshold;
+ bcp->cong_response_us = congested_respns_us;
+ bcp->cong_reps = congested_reps;
+ bcp->disabled_period = sec_2_cycles(disabled_period);
+ bcp->giveup_limit = giveup_limit;
}
return count;
}
@@ -1676,21 +1695,21 @@ static int __init uv_ptc_init(void)
proc_uv_ptc = proc_create(UV_PTC_BASENAME, 0444, NULL,
&proc_uv_ptc_operations);
if (!proc_uv_ptc) {
- printk(KERN_ERR "unable to create %s proc entry\n",
+ pr_err("unable to create %s proc entry\n",
UV_PTC_BASENAME);
return -EINVAL;
}
tunables_dir = debugfs_create_dir(UV_BAU_TUNABLES_DIR, NULL);
if (!tunables_dir) {
- printk(KERN_ERR "unable to create debugfs directory %s\n",
+ pr_err("unable to create debugfs directory %s\n",
UV_BAU_TUNABLES_DIR);
return -EINVAL;
}
tunables_file = debugfs_create_file(UV_BAU_TUNABLES_FILE, 0600,
tunables_dir, NULL, &tunables_fops);
if (!tunables_file) {
- printk(KERN_ERR "unable to create debugfs file %s\n",
+ pr_err("unable to create debugfs file %s\n",
UV_BAU_TUNABLES_FILE);
return -EINVAL;
}
@@ -1725,7 +1744,7 @@ static void activation_descriptor_init(int node, int pnode, int base_pnode)
gpa = uv_gpa(bau_desc);
n = uv_gpa_to_gnode(gpa);
- m = uv_gpa_to_offset(gpa);
+ m = ops.bau_gpa_to_offset(gpa);
if (is_uv1_hub())
uv1 = 1;
@@ -1740,7 +1759,7 @@ static void activation_descriptor_init(int node, int pnode, int base_pnode)
memset(bd2, 0, sizeof(struct bau_desc));
if (uv1) {
uv1_hdr = &bd2->header.uv1_hdr;
- uv1_hdr->swack_flag = 1;
+ uv1_hdr->swack_flag = 1;
/*
* The base_dest_nasid set in the message header
* is the nasid of the first uvhub in the partition.
@@ -1749,10 +1768,10 @@ static void activation_descriptor_init(int node, int pnode, int base_pnode)
* if nasid striding is being used.
*/
uv1_hdr->base_dest_nasid =
- UV_PNODE_TO_NASID(base_pnode);
- uv1_hdr->dest_subnodeid = UV_LB_SUBNODEID;
- uv1_hdr->command = UV_NET_ENDPOINT_INTD;
- uv1_hdr->int_both = 1;
+ UV_PNODE_TO_NASID(base_pnode);
+ uv1_hdr->dest_subnodeid = UV_LB_SUBNODEID;
+ uv1_hdr->command = UV_NET_ENDPOINT_INTD;
+ uv1_hdr->int_both = 1;
/*
* all others need to be set to zero:
* fairness chaining multilevel count replied_to
@@ -1763,11 +1782,11 @@ static void activation_descriptor_init(int node, int pnode, int base_pnode)
* uses native mode for selective broadcasts.
*/
uv2_3_hdr = &bd2->header.uv2_3_hdr;
- uv2_3_hdr->swack_flag = 1;
+ uv2_3_hdr->swack_flag = 1;
uv2_3_hdr->base_dest_nasid =
- UV_PNODE_TO_NASID(base_pnode);
- uv2_3_hdr->dest_subnodeid = UV_LB_SUBNODEID;
- uv2_3_hdr->command = UV_NET_ENDPOINT_INTD;
+ UV_PNODE_TO_NASID(base_pnode);
+ uv2_3_hdr->dest_subnodeid = UV_LB_SUBNODEID;
+ uv2_3_hdr->command = UV_NET_ENDPOINT_INTD;
}
}
for_each_present_cpu(cpu) {
@@ -1790,10 +1809,7 @@ static void pq_init(int node, int pnode)
size_t plsize;
char *cp;
void *vp;
- unsigned long pn;
- unsigned long first;
- unsigned long pn_first;
- unsigned long last;
+ unsigned long gnode, first, last, tail;
struct bau_pq_entry *pqp;
struct bau_control *bcp;
@@ -1814,17 +1830,25 @@ static void pq_init(int node, int pnode)
bcp->bau_msg_head = pqp;
bcp->queue_last = pqp + (DEST_Q_SIZE - 1);
}
+
+ first = ops.bau_gpa_to_offset(uv_gpa(pqp));
+ last = ops.bau_gpa_to_offset(uv_gpa(pqp + (DEST_Q_SIZE - 1)));
+
/*
- * need the gnode of where the memory was really allocated
+ * Pre UV4, the gnode is required to locate the payload queue
+ * and the payload queue tail must be maintained by the kernel.
*/
- pn = uv_gpa_to_gnode(uv_gpa(pqp));
- first = uv_physnodeaddr(pqp);
- pn_first = ((unsigned long)pn << UV_PAYLOADQ_PNODE_SHIFT) | first;
- last = uv_physnodeaddr(pqp + (DEST_Q_SIZE - 1));
- write_mmr_payload_first(pnode, pn_first);
- write_mmr_payload_tail(pnode, first);
- write_mmr_payload_last(pnode, last);
- write_gmmr_sw_ack(pnode, 0xffffUL);
+ bcp = &per_cpu(bau_control, smp_processor_id());
+ if (bcp->uvhub_version <= 3) {
+ tail = first;
+ gnode = uv_gpa_to_gnode(uv_gpa(pqp));
+ first = (gnode << UV_PAYLOADQ_GNODE_SHIFT) | tail;
+ write_mmr_payload_tail(pnode, tail);
+ }
+
+ ops.write_payload_first(pnode, first);
+ ops.write_payload_last(pnode, last);
+ ops.write_g_sw_ack(pnode, 0xffffUL);
/* in effect, all msg_type's are set to MSG_NOOP */
memset(pqp, 0, sizeof(struct bau_pq_entry) * DEST_Q_SIZE);
@@ -1914,8 +1938,8 @@ static void __init init_per_cpu_tunables(void)
bcp->complete_threshold = complete_threshold;
bcp->cong_response_us = congested_respns_us;
bcp->cong_reps = congested_reps;
- bcp->disabled_period = sec_2_cycles(disabled_period);
- bcp->giveup_limit = giveup_limit;
+ bcp->disabled_period = sec_2_cycles(disabled_period);
+ bcp->giveup_limit = giveup_limit;
spin_lock_init(&bcp->queue_lock);
spin_lock_init(&bcp->uvhub_lock);
spin_lock_init(&bcp->disable_lock);
@@ -1944,7 +1968,7 @@ static int __init get_cpu_topology(int base_pnode,
pnode = uv_cpu_hub_info(cpu)->pnode;
if ((pnode - base_pnode) >= UV_DISTRIBUTION_SIZE) {
- printk(KERN_EMERG
+ pr_emerg(
"cpu %d pnode %d-%d beyond %d; BAU disabled\n",
cpu, pnode, base_pnode, UV_DISTRIBUTION_SIZE);
return 1;
@@ -1969,7 +1993,7 @@ static int __init get_cpu_topology(int base_pnode,
sdp->cpu_number[sdp->num_cpus] = cpu;
sdp->num_cpus++;
if (sdp->num_cpus > MAX_CPUS_PER_SOCKET) {
- printk(KERN_EMERG "%d cpus per socket invalid\n",
+ pr_emerg("%d cpus per socket invalid\n",
sdp->num_cpus);
return 1;
}
@@ -2035,15 +2059,17 @@ static int scan_sock(struct socket_desc *sdp, struct uvhub_desc *bdp,
bcp->uvhub_version = 2;
else if (is_uv3_hub())
bcp->uvhub_version = 3;
+ else if (is_uv4_hub())
+ bcp->uvhub_version = 4;
else {
- printk(KERN_EMERG "uvhub version not 1, 2 or 3\n");
+ pr_emerg("uvhub version not 1, 2, 3, or 4\n");
return 1;
}
bcp->uvhub_master = *hmasterp;
bcp->uvhub_cpu = uv_cpu_blade_processor_id(cpu);
if (bcp->uvhub_cpu >= MAX_CPUS_PER_UVHUB) {
- printk(KERN_EMERG "%d cpus per uvhub invalid\n",
+ pr_emerg("%d cpus per uvhub invalid\n",
bcp->uvhub_cpu);
return 1;
}
@@ -2098,7 +2124,8 @@ static int __init init_per_cpu(int nuvhubs, int base_part_pnode)
void *vp;
struct uvhub_desc *uvhub_descs;
- timeout_us = calculate_destination_timeout();
+ if (is_uv3_hub() || is_uv2_hub() || is_uv1_hub())
+ timeout_us = calculate_destination_timeout();
vp = kmalloc(nuvhubs * sizeof(struct uvhub_desc), GFP_KERNEL);
uvhub_descs = (struct uvhub_desc *)vp;
@@ -2138,6 +2165,15 @@ static int __init uv_bau_init(void)
if (!is_uv_system())
return 0;
+ if (is_uv4_hub())
+ ops = uv4_bau_ops;
+ else if (is_uv3_hub())
+ ops = uv123_bau_ops;
+ else if (is_uv2_hub())
+ ops = uv123_bau_ops;
+ else if (is_uv1_hub())
+ ops = uv123_bau_ops;
+
for_each_possible_cpu(cur_cpu) {
mask = &per_cpu(uv_flush_tlb_mask, cur_cpu);
zalloc_cpumask_var_node(mask, GFP_KERNEL, cpu_to_node(cur_cpu));
@@ -2153,7 +2189,9 @@ static int __init uv_bau_init(void)
uv_base_pnode = uv_blade_to_pnode(uvhub);
}
- enable_timeouts();
+ /* software timeouts are not supported on UV4 */
+ if (is_uv3_hub() || is_uv2_hub() || is_uv1_hub())
+ enable_timeouts();
if (init_per_cpu(nuvhubs, uv_base_pnode)) {
set_bau_off();
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