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4e57b68178
linux_dsm_epyc7002/drivers/char/agp/ati-agp.c
Tim Schmielau 4e57b68178 [PATCH] fix missing includes 
I recently picked up my older work to remove unnecessary #includes of
sched.h, starting from a patch by Dave Jones to not include sched.h
from module.h. This reduces the number of indirect includes of sched.h
by ~300. Another ~400 pointless direct includes can be removed after
this disentangling (patch to follow later).
However, quite a few indirect includes need to be fixed up for this.

In order to feed the patches through -mm with as little disturbance as
possible, I've split out the fixes I accumulated up to now (complete for
i386 and x86_64, more archs to follow later) and post them before the real
patch.  This way this large part of the patch is kept simple with only
adding #includes, and all hunks are independent of each other.  So if any
hunk rejects or gets in the way of other patches, just drop it.  My scripts
will pick it up again in the next round.

Signed-off-by: Tim Schmielau <tim@physik3.uni-rostock.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-10-30 17:37:32 -08:00

551 lines
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C
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/*
* ATi AGPGART routines.
*/
#include <linux/types.h>
#include <linux/module.h>
#include <linux/pci.h>
#include <linux/init.h>
#include <linux/string.h>
#include <linux/slab.h>
#include <linux/agp_backend.h>
#include <asm/agp.h>
#include "agp.h"
#define ATI_GART_MMBASE_ADDR 0x14
#define ATI_RS100_APSIZE 0xac
#define ATI_RS100_IG_AGPMODE 0xb0
#define ATI_RS300_APSIZE 0xf8
#define ATI_RS300_IG_AGPMODE 0xfc
#define ATI_GART_FEATURE_ID 0x00
#define ATI_GART_BASE 0x04
#define ATI_GART_CACHE_SZBASE 0x08
#define ATI_GART_CACHE_CNTRL 0x0c
#define ATI_GART_CACHE_ENTRY_CNTRL 0x10
static struct aper_size_info_lvl2 ati_generic_sizes[7] =
{
{2048, 524288, 0x0000000c},
{1024, 262144, 0x0000000a},
{512, 131072, 0x00000008},
{256, 65536, 0x00000006},
{128, 32768, 0x00000004},
{64, 16384, 0x00000002},
{32, 8192, 0x00000000}
};
static struct gatt_mask ati_generic_masks[] =
{
{ .mask = 1, .type = 0}
};
typedef struct _ati_page_map {
unsigned long *real;
unsigned long __iomem *remapped;
} ati_page_map;
static struct _ati_generic_private {
volatile u8 __iomem *registers;
ati_page_map **gatt_pages;
int num_tables;
} ati_generic_private;
static int ati_create_page_map(ati_page_map *page_map)
{
int i, err = 0;
page_map->real = (unsigned long *) __get_free_page(GFP_KERNEL);
if (page_map->real == NULL)
return -ENOMEM;
SetPageReserved(virt_to_page(page_map->real));
err = map_page_into_agp(virt_to_page(page_map->real));
page_map->remapped = ioremap_nocache(virt_to_gart(page_map->real),
PAGE_SIZE);
if (page_map->remapped == NULL || err) {
ClearPageReserved(virt_to_page(page_map->real));
free_page((unsigned long) page_map->real);
page_map->real = NULL;
return -ENOMEM;
}
/*CACHE_FLUSH();*/
global_cache_flush();
for(i = 0; i < PAGE_SIZE / sizeof(unsigned long); i++) {
writel(agp_bridge->scratch_page, page_map->remapped+i);
readl(page_map->remapped+i); /* PCI Posting. */
}
return 0;
}
static void ati_free_page_map(ati_page_map *page_map)
{
unmap_page_from_agp(virt_to_page(page_map->real));
iounmap(page_map->remapped);
ClearPageReserved(virt_to_page(page_map->real));
free_page((unsigned long) page_map->real);
}
static void ati_free_gatt_pages(void)
{
int i;
ati_page_map **tables;
ati_page_map *entry;
tables = ati_generic_private.gatt_pages;
for(i = 0; i < ati_generic_private.num_tables; i++) {
entry = tables[i];
if (entry != NULL) {
if (entry->real != NULL)
ati_free_page_map(entry);
kfree(entry);
}
}
kfree(tables);
}
static int ati_create_gatt_pages(int nr_tables)
{
ati_page_map **tables;
ati_page_map *entry;
int retval = 0;
int i;
tables = kmalloc((nr_tables + 1) * sizeof(ati_page_map *),
GFP_KERNEL);
if (tables == NULL)
return -ENOMEM;
memset(tables, 0, sizeof(ati_page_map *) * (nr_tables + 1));
for (i = 0; i < nr_tables; i++) {
entry = kmalloc(sizeof(ati_page_map), GFP_KERNEL);
if (entry == NULL) {
while (i>0) {
kfree (tables[i-1]);
i--;
}
kfree (tables);
tables = NULL;
retval = -ENOMEM;
break;
}
memset(entry, 0, sizeof(ati_page_map));
tables[i] = entry;
retval = ati_create_page_map(entry);
if (retval != 0) break;
}
ati_generic_private.num_tables = nr_tables;
ati_generic_private.gatt_pages = tables;
if (retval != 0) ati_free_gatt_pages();
return retval;
}
static int is_r200(void)
{
if ((agp_bridge->dev->device == PCI_DEVICE_ID_ATI_RS100) ||
(agp_bridge->dev->device == PCI_DEVICE_ID_ATI_RS200) ||
(agp_bridge->dev->device == PCI_DEVICE_ID_ATI_RS200_B) ||
(agp_bridge->dev->device == PCI_DEVICE_ID_ATI_RS250))
return 1;
return 0;
}
static int ati_fetch_size(void)
{
int i;
u32 temp;
struct aper_size_info_lvl2 *values;
if (is_r200())
pci_read_config_dword(agp_bridge->dev, ATI_RS100_APSIZE, &temp);
else
pci_read_config_dword(agp_bridge->dev, ATI_RS300_APSIZE, &temp);
temp = (temp & 0x0000000e);
values = A_SIZE_LVL2(agp_bridge->driver->aperture_sizes);
for (i = 0; i < agp_bridge->driver->num_aperture_sizes; i++) {
if (temp == values[i].size_value) {
agp_bridge->previous_size =
agp_bridge->current_size = (void *) (values + i);
agp_bridge->aperture_size_idx = i;
return values[i].size;
}
}
return 0;
}
static void ati_tlbflush(struct agp_memory * mem)
{
writel(1, ati_generic_private.registers+ATI_GART_CACHE_CNTRL);
readl(ati_generic_private.registers+ATI_GART_CACHE_CNTRL); /* PCI Posting. */
}
static void ati_cleanup(void)
{
struct aper_size_info_lvl2 *previous_size;
u32 temp;
previous_size = A_SIZE_LVL2(agp_bridge->previous_size);
/* Write back the previous size and disable gart translation */
if (is_r200()) {
pci_read_config_dword(agp_bridge->dev, ATI_RS100_APSIZE, &temp);
temp = ((temp & ~(0x0000000f)) | previous_size->size_value);
pci_write_config_dword(agp_bridge->dev, ATI_RS100_APSIZE, temp);
} else {
pci_read_config_dword(agp_bridge->dev, ATI_RS300_APSIZE, &temp);
temp = ((temp & ~(0x0000000f)) | previous_size->size_value);
pci_write_config_dword(agp_bridge->dev, ATI_RS300_APSIZE, temp);
}
iounmap((volatile u8 __iomem *)ati_generic_private.registers);
}
static int ati_configure(void)
{
u32 temp;
/* Get the memory mapped registers */
pci_read_config_dword(agp_bridge->dev, ATI_GART_MMBASE_ADDR, &temp);
temp = (temp & 0xfffff000);
ati_generic_private.registers = (volatile u8 __iomem *) ioremap(temp, 4096);
if (is_r200())
pci_write_config_dword(agp_bridge->dev, ATI_RS100_IG_AGPMODE, 0x20000);
else
pci_write_config_dword(agp_bridge->dev, ATI_RS300_IG_AGPMODE, 0x20000);
/* address to map too */
/*
pci_read_config_dword(agp_bridge.dev, AGP_APBASE, &temp);
agp_bridge.gart_bus_addr = (temp & PCI_BASE_ADDRESS_MEM_MASK);
printk(KERN_INFO PFX "IGP320 gart_bus_addr: %x\n", agp_bridge.gart_bus_addr);
*/
writel(0x60000, ati_generic_private.registers+ATI_GART_FEATURE_ID);
readl(ati_generic_private.registers+ATI_GART_FEATURE_ID); /* PCI Posting.*/
/* SIGNALED_SYSTEM_ERROR @ NB_STATUS */
pci_read_config_dword(agp_bridge->dev, 4, &temp);
pci_write_config_dword(agp_bridge->dev, 4, temp | (1<<14));
/* Write out the address of the gatt table */
writel(agp_bridge->gatt_bus_addr, ati_generic_private.registers+ATI_GART_BASE);
readl(ati_generic_private.registers+ATI_GART_BASE); /* PCI Posting. */
return 0;
}
/*
*Since we don't need contigious memory we just try
* to get the gatt table once
*/
#define GET_PAGE_DIR_OFF(addr) (addr >> 22)
#define GET_PAGE_DIR_IDX(addr) (GET_PAGE_DIR_OFF(addr) - \
GET_PAGE_DIR_OFF(agp_bridge->gart_bus_addr))
#define GET_GATT_OFF(addr) ((addr & 0x003ff000) >> 12)
#undef GET_GATT
#define GET_GATT(addr) (ati_generic_private.gatt_pages[\
GET_PAGE_DIR_IDX(addr)]->remapped)
static int ati_insert_memory(struct agp_memory * mem,
off_t pg_start, int type)
{
int i, j, num_entries;
unsigned long __iomem *cur_gatt;
unsigned long addr;
num_entries = A_SIZE_LVL2(agp_bridge->current_size)->num_entries;
if (type != 0 || mem->type != 0)
return -EINVAL;
if ((pg_start + mem->page_count) > num_entries)
return -EINVAL;
j = pg_start;
while (j < (pg_start + mem->page_count)) {
addr = (j * PAGE_SIZE) + agp_bridge->gart_bus_addr;
cur_gatt = GET_GATT(addr);
if (!PGE_EMPTY(agp_bridge,readl(cur_gatt+GET_GATT_OFF(addr))))
return -EBUSY;
j++;
}
if (mem->is_flushed == FALSE) {
/*CACHE_FLUSH(); */
global_cache_flush();
mem->is_flushed = TRUE;
}
for (i = 0, j = pg_start; i < mem->page_count; i++, j++) {
addr = (j * PAGE_SIZE) + agp_bridge->gart_bus_addr;
cur_gatt = GET_GATT(addr);
writel(agp_bridge->driver->mask_memory(agp_bridge,
mem->memory[i], mem->type), cur_gatt+GET_GATT_OFF(addr));
readl(cur_gatt+GET_GATT_OFF(addr)); /* PCI Posting. */
}
agp_bridge->driver->tlb_flush(mem);
return 0;
}
static int ati_remove_memory(struct agp_memory * mem, off_t pg_start,
int type)
{
int i;
unsigned long __iomem *cur_gatt;
unsigned long addr;
if (type != 0 || mem->type != 0) {
return -EINVAL;
}
for (i = pg_start; i < (mem->page_count + pg_start); i++) {
addr = (i * PAGE_SIZE) + agp_bridge->gart_bus_addr;
cur_gatt = GET_GATT(addr);
writel(agp_bridge->scratch_page, cur_gatt+GET_GATT_OFF(addr));
readl(cur_gatt+GET_GATT_OFF(addr)); /* PCI Posting. */
}
agp_bridge->driver->tlb_flush(mem);
return 0;
}
static int ati_create_gatt_table(struct agp_bridge_data *bridge)
{
struct aper_size_info_lvl2 *value;
ati_page_map page_dir;
unsigned long addr;
int retval;
u32 temp;
int i;
struct aper_size_info_lvl2 *current_size;
value = A_SIZE_LVL2(agp_bridge->current_size);
retval = ati_create_page_map(&page_dir);
if (retval != 0)
return retval;
retval = ati_create_gatt_pages(value->num_entries / 1024);
if (retval != 0) {
ati_free_page_map(&page_dir);
return retval;
}
agp_bridge->gatt_table_real = (u32 *)page_dir.real;
agp_bridge->gatt_table = (u32 __iomem *) page_dir.remapped;
agp_bridge->gatt_bus_addr = virt_to_gart(page_dir.real);
/* Write out the size register */
current_size = A_SIZE_LVL2(agp_bridge->current_size);
if (is_r200()) {
pci_read_config_dword(agp_bridge->dev, ATI_RS100_APSIZE, &temp);
temp = (((temp & ~(0x0000000e)) | current_size->size_value)
| 0x00000001);
pci_write_config_dword(agp_bridge->dev, ATI_RS100_APSIZE, temp);
pci_read_config_dword(agp_bridge->dev, ATI_RS100_APSIZE, &temp);
} else {
pci_read_config_dword(agp_bridge->dev, ATI_RS300_APSIZE, &temp);
temp = (((temp & ~(0x0000000e)) | current_size->size_value)
| 0x00000001);
pci_write_config_dword(agp_bridge->dev, ATI_RS300_APSIZE, temp);
pci_read_config_dword(agp_bridge->dev, ATI_RS300_APSIZE, &temp);
}
/*
* Get the address for the gart region.
* This is a bus address even on the alpha, b/c its
* used to program the agp master not the cpu
*/
pci_read_config_dword(agp_bridge->dev, AGP_APBASE, &temp);
addr = (temp & PCI_BASE_ADDRESS_MEM_MASK);
agp_bridge->gart_bus_addr = addr;
/* Calculate the agp offset */
for(i = 0; i < value->num_entries / 1024; i++, addr += 0x00400000) {
writel(virt_to_gart(ati_generic_private.gatt_pages[i]->real) | 1,
page_dir.remapped+GET_PAGE_DIR_OFF(addr));
readl(page_dir.remapped+GET_PAGE_DIR_OFF(addr)); /* PCI Posting. */
}
return 0;
}
static int ati_free_gatt_table(struct agp_bridge_data *bridge)
{
ati_page_map page_dir;
page_dir.real = (unsigned long *)agp_bridge->gatt_table_real;
page_dir.remapped = (unsigned long __iomem *)agp_bridge->gatt_table;
ati_free_gatt_pages();
ati_free_page_map(&page_dir);
return 0;
}
static struct agp_bridge_driver ati_generic_bridge = {
.owner = THIS_MODULE,
.aperture_sizes = ati_generic_sizes,
.size_type = LVL2_APER_SIZE,
.num_aperture_sizes = 7,
.configure = ati_configure,
.fetch_size = ati_fetch_size,
.cleanup = ati_cleanup,
.tlb_flush = ati_tlbflush,
.mask_memory = agp_generic_mask_memory,
.masks = ati_generic_masks,
.agp_enable = agp_generic_enable,
.cache_flush = global_cache_flush,
.create_gatt_table = ati_create_gatt_table,
.free_gatt_table = ati_free_gatt_table,
.insert_memory = ati_insert_memory,
.remove_memory = ati_remove_memory,
.alloc_by_type = agp_generic_alloc_by_type,
.free_by_type = agp_generic_free_by_type,
.agp_alloc_page = agp_generic_alloc_page,
.agp_destroy_page = agp_generic_destroy_page,
};
static struct agp_device_ids ati_agp_device_ids[] __devinitdata =
{
{
.device_id = PCI_DEVICE_ID_ATI_RS100,
.chipset_name = "IGP320/M",
},
{
.device_id = PCI_DEVICE_ID_ATI_RS200,
.chipset_name = "IGP330/340/345/350/M",
},
{
.device_id = PCI_DEVICE_ID_ATI_RS200_B,
.chipset_name = "IGP345M",
},
{
.device_id = PCI_DEVICE_ID_ATI_RS250,
.chipset_name = "IGP7000/M",
},
{
.device_id = PCI_DEVICE_ID_ATI_RS300_100,
.chipset_name = "IGP9100/M",
},
{
.device_id = PCI_DEVICE_ID_ATI_RS300_133,
.chipset_name = "IGP9100/M",
},
{
.device_id = PCI_DEVICE_ID_ATI_RS300_166,
.chipset_name = "IGP9100/M",
},
{
.device_id = PCI_DEVICE_ID_ATI_RS300_200,
.chipset_name = "IGP9100/M",
},
{ }, /* dummy final entry, always present */
};
static int __devinit agp_ati_probe(struct pci_dev *pdev,
const struct pci_device_id *ent)
{
struct agp_device_ids *devs = ati_agp_device_ids;
struct agp_bridge_data *bridge;
u8 cap_ptr;
int j;
cap_ptr = pci_find_capability(pdev, PCI_CAP_ID_AGP);
if (!cap_ptr)
return -ENODEV;
/* probe for known chipsets */
for (j = 0; devs[j].chipset_name; j++) {
if (pdev->device == devs[j].device_id)
goto found;
}
printk(KERN_ERR PFX
"Unsupported Ati chipset (device id: %04x)\n", pdev->device);
return -ENODEV;
found:
bridge = agp_alloc_bridge();
if (!bridge)
return -ENOMEM;
bridge->dev = pdev;
bridge->capndx = cap_ptr;
bridge->driver = &ati_generic_bridge;
printk(KERN_INFO PFX "Detected Ati %s chipset\n",
devs[j].chipset_name);
/* Fill in the mode register */
pci_read_config_dword(pdev,
bridge->capndx+PCI_AGP_STATUS,
&bridge->mode);
pci_set_drvdata(pdev, bridge);
return agp_add_bridge(bridge);
}
static void __devexit agp_ati_remove(struct pci_dev *pdev)
{
struct agp_bridge_data *bridge = pci_get_drvdata(pdev);
agp_remove_bridge(bridge);
agp_put_bridge(bridge);
}
static struct pci_device_id agp_ati_pci_table[] = {
{
.class = (PCI_CLASS_BRIDGE_HOST << 8),
.class_mask = ~0,
.vendor = PCI_VENDOR_ID_ATI,
.device = PCI_ANY_ID,
.subvendor = PCI_ANY_ID,
.subdevice = PCI_ANY_ID,
},
{ }
};
MODULE_DEVICE_TABLE(pci, agp_ati_pci_table);
static struct pci_driver agp_ati_pci_driver = {
.name = "agpgart-ati",
.id_table = agp_ati_pci_table,
.probe = agp_ati_probe,
.remove = agp_ati_remove,
};
static int __init agp_ati_init(void)
{
if (agp_off)
return -EINVAL;
return pci_register_driver(&agp_ati_pci_driver);
}
static void __exit agp_ati_cleanup(void)
{
pci_unregister_driver(&agp_ati_pci_driver);
}
module_init(agp_ati_init);
module_exit(agp_ati_cleanup);
MODULE_AUTHOR("Dave Jones <davej@codemonkey.org.uk>");
MODULE_LICENSE("GPL and additional rights");
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