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Merge master.kernel.org:/pub/scm/linux/kernel/git/davej/agpgart

Browse Source 
* master.kernel.org:/pub/scm/linux/kernel/git/davej/agpgart:
  [AGPGART] Rework AGPv3 modesetting fallback.
  [AGPGART] Add suspend callback for i965
  [AGPGART] Fix number of aperture sizes in 830 gart structs.
  [AGPGART] Intel 965 Express support.
  [AGPGART] agp.h: constify struct agp_bridge_data::version
  [AGPGART] const'ify VIA AGP PCI table.
  [AGPGART] CONFIG_PM=n slim: drivers/char/agp/intel-agp.c
  [AGPGART] CONFIG_PM=n slim: drivers/char/agp/efficeon-agp.c
  [AGPGART] Const'ify the agpgart driver version.
  [AGPGART] remove private page protection map
This commit is contained in:
Linus Torvalds 2006-09-22 17:50:50 -07:00
commit 6585b57240
9 changed files with 207 additions and 64 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/char/agp/agp.h
View File

@ -117,7 +117,7 @@ struct agp_bridge_driver {
};
struct agp_bridge_data {
struct agp_version *version;
const struct agp_version *version;
struct agp_bridge_driver *driver;
struct vm_operations_struct *vm_ops;
void *previous_size;

2
drivers/char/agp/backend.c
View File

@ -44,7 +44,7 @@
* past 0.99 at all due to some boolean logic error. */
#define AGPGART_VERSION_MAJOR 0
#define AGPGART_VERSION_MINOR 101
static struct agp_version agp_current_version =
static const struct agp_version agp_current_version =
{
.major = AGPGART_VERSION_MAJOR,
.minor = AGPGART_VERSION_MINOR,

16
drivers/char/agp/efficeon-agp.c
View File

@ -337,13 +337,6 @@ static struct agp_bridge_driver efficeon_driver = {
.agp_destroy_page = agp_generic_destroy_page,
};
static int agp_efficeon_resume(struct pci_dev *pdev)
{
printk(KERN_DEBUG PFX "agp_efficeon_resume()\n");
return efficeon_configure();
}
static int __devinit agp_efficeon_probe(struct pci_dev *pdev,
const struct pci_device_id *ent)
{
@ -414,11 +407,18 @@ static void __devexit agp_efficeon_remove(struct pci_dev *pdev)
agp_put_bridge(bridge);
}
#ifdef CONFIG_PM
static int agp_efficeon_suspend(struct pci_dev *dev, pm_message_t state)
{
return 0;
}
static int agp_efficeon_resume(struct pci_dev *pdev)
{
printk(KERN_DEBUG PFX "agp_efficeon_resume()\n");
return efficeon_configure();
}
#endif
static struct pci_device_id agp_efficeon_pci_table[] = {
{
@ -439,8 +439,10 @@ static struct pci_driver agp_efficeon_pci_driver = {
.id_table = agp_efficeon_pci_table,
.probe = agp_efficeon_probe,
.remove = agp_efficeon_remove,
#ifdef CONFIG_PM
.suspend = agp_efficeon_suspend,
.resume = agp_efficeon_resume,
#endif
};
static int __init agp_efficeon_init(void)

27
drivers/char/agp/frontend.c
View File

@ -151,35 +151,12 @@ static void agp_add_seg_to_client(struct agp_client *client,
client->segments = seg;
}
/* Originally taken from linux/mm/mmap.c from the array
* protection_map.
* The original really should be exported to modules, or
* some routine which does the conversion for you
*/
static const pgprot_t my_protect_map[16] =
{
__P000, __P001, __P010, __P011, __P100, __P101, __P110, __P111,
__S000, __S001, __S010, __S011, __S100, __S101, __S110, __S111
};
static pgprot_t agp_convert_mmap_flags(int prot)
{
#define _trans(x,bit1,bit2) \
((bit1==bit2)?(x&bit1):(x&bit1)?bit2:0)
unsigned long prot_bits;
pgprot_t temp;
prot_bits = _trans(prot, PROT_READ, VM_READ) |
_trans(prot, PROT_WRITE, VM_WRITE) |
_trans(prot, PROT_EXEC, VM_EXEC);
prot_bits |= VM_SHARED;
temp = my_protect_map[prot_bits & 0x0000000f];
return temp;
prot_bits = calc_vm_prot_bits(prot) | VM_SHARED;
return vm_get_page_prot(prot_bits);
}
static int agp_create_segment(struct agp_client *client, struct agp_region *region)

39
drivers/char/agp/generic.c
View File

@ -568,25 +568,34 @@ static void agp_v3_parse_one(u32 *requested_mode, u32 *bridge_agpstat, u32 *vga_
*bridge_agpstat &= ~(AGPSTAT3_4X | AGPSTAT3_RSVD);
goto done;
} else if (*requested_mode & AGPSTAT3_4X) {
*bridge_agpstat &= ~(AGPSTAT3_8X | AGPSTAT3_RSVD);
*bridge_agpstat |= AGPSTAT3_4X;
goto done;
} else {
/*
* If we didn't specify AGPx8, we can only do x4.
* If the hardware can't do x4, we're up shit creek, and never
* should have got this far.
* If we didn't specify an AGP mode, we see if both
* the graphics card, and the bridge can do x8, and use if so.
* If not, we fall back to x4 mode.
*/
*bridge_agpstat &= ~(AGPSTAT3_8X | AGPSTAT3_RSVD);
if ((*bridge_agpstat & AGPSTAT3_4X) && (*vga_agpstat & AGPSTAT3_4X))
*bridge_agpstat |= AGPSTAT3_4X;
else {
printk(KERN_INFO PFX "Badness. Don't know which AGP mode to set. "
"[bridge_agpstat:%x vga_agpstat:%x fell back to:- bridge_agpstat:%x vga_agpstat:%x]\n",
origbridge, origvga, *bridge_agpstat, *vga_agpstat);
if (!(*bridge_agpstat & AGPSTAT3_4X))
printk(KERN_INFO PFX "Bridge couldn't do AGP x4.\n");
if (!(*vga_agpstat & AGPSTAT3_4X))
printk(KERN_INFO PFX "Graphic card couldn't do AGP x4.\n");
return;
if ((*bridge_agpstat & AGPSTAT3_8X) && (*vga_agpstat & AGPSTAT3_8X)) {
printk(KERN_INFO PFX "No AGP mode specified. Setting to highest mode supported by bridge & card (x8).\n");
*bridge_agpstat &= ~(AGPSTAT3_4X | AGPSTAT3_RSVD);
*vga_agpstat &= ~(AGPSTAT3_4X | AGPSTAT3_RSVD);
} else {
printk(KERN_INFO PFX "Fell back to AGPx4 mode because");
if (!(*bridge_agpstat & AGPSTAT3_8X)) {
printk("bridge couldn't do x8. bridge_agpstat:%x (orig=%x)\n", *bridge_agpstat, origbridge);
*bridge_agpstat &= ~(AGPSTAT3_8X | AGPSTAT3_RSVD);
*bridge_agpstat |= AGPSTAT3_4X;
}
if (!(*vga_agpstat & AGPSTAT3_8X)) {
printk("graphics card couldn't do x8. vga_agpstat:%x (orig=%x)\n", *vga_agpstat, origvga);
*vga_agpstat &= ~(AGPSTAT3_8X | AGPSTAT3_RSVD);
*vga_agpstat |= AGPSTAT3_4X;
}
}
}

173
drivers/char/agp/intel-agp.c
View File

@ -2,14 +2,6 @@
* Intel AGPGART routines.
*/
/*
* Intel(R) 855GM/852GM and 865G support added by David Dawes
* <dawes@tungstengraphics.com>.
*
* Intel(R) 915G/915GM support added by Alan Hourihane
* <alanh@tungstengraphics.com>.
*/
#include <linux/module.h>
#include <linux/pci.h>
#include <linux/init.h>
@ -17,6 +9,21 @@
#include <linux/agp_backend.h>
#include "agp.h"
#define PCI_DEVICE_ID_INTEL_82946GZ_HB 0x2970
#define PCI_DEVICE_ID_INTEL_82946GZ_IG 0x2972
#define PCI_DEVICE_ID_INTEL_82965G_1_HB 0x2980
#define PCI_DEVICE_ID_INTEL_82965G_1_IG 0x2982
#define PCI_DEVICE_ID_INTEL_82965Q_HB 0x2990
#define PCI_DEVICE_ID_INTEL_82965Q_IG 0x2992
#define PCI_DEVICE_ID_INTEL_82965G_HB 0x29A0
#define PCI_DEVICE_ID_INTEL_82965G_IG 0x29A2
#define IS_I965 (agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_82946GZ_HB || \
agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_82965G_1_HB || \
agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_82965Q_HB || \
agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_82965G_HB)
/* Intel 815 register */
#define INTEL_815_APCONT 0x51
#define INTEL_815_ATTBASE_MASK ~0x1FFFFFFF
@ -40,6 +47,8 @@
#define I915_GMCH_GMS_STOLEN_48M (0x6 << 4)
#define I915_GMCH_GMS_STOLEN_64M (0x7 << 4)
/* Intel 965G registers */
#define I965_MSAC 0x62
/* Intel 7505 registers */
#define INTEL_I7505_APSIZE 0x74
@ -354,6 +363,7 @@ static struct aper_size_info_fixed intel_i830_sizes[] =
/* The 64M mode still requires a 128k gatt */
{64, 16384, 5},
{256, 65536, 6},
{512, 131072, 7},
};
static struct _intel_i830_private {
@ -377,7 +387,11 @@ static void intel_i830_init_gtt_entries(void)
/* We obtain the size of the GTT, which is also stored (for some
* reason) at the top of stolen memory. Then we add 4KB to that
* for the video BIOS popup, which is also stored in there. */
size = agp_bridge->driver->fetch_size() + 4;
if (IS_I965)
size = 512 + 4;
else
size = agp_bridge->driver->fetch_size() + 4;
if (agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_82830_HB ||
agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_82845G_HB) {
@ -423,7 +437,7 @@ static void intel_i830_init_gtt_entries(void)
if (agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_82915G_HB ||
agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_82915GM_HB ||
agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_82945G_HB ||
agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_82945GM_HB)
agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_82945GM_HB || IS_I965 )
gtt_entries = MB(48) - KB(size);
else
gtt_entries = 0;
@ -433,7 +447,7 @@ static void intel_i830_init_gtt_entries(void)
if (agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_82915G_HB ||
agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_82915GM_HB ||
agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_82945G_HB ||
agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_82945GM_HB)
agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_82945GM_HB || IS_I965)
gtt_entries = MB(64) - KB(size);
else
gtt_entries = 0;
@ -791,6 +805,77 @@ static int intel_i915_create_gatt_table(struct agp_bridge_data *bridge)
return 0;
}
static int intel_i965_fetch_size(void)
{
struct aper_size_info_fixed *values;
u32 offset = 0;
u8 temp;
#define I965_512MB_ADDRESS_MASK (3<<1)
values = A_SIZE_FIX(agp_bridge->driver->aperture_sizes);
pci_read_config_byte(intel_i830_private.i830_dev, I965_MSAC, &temp);
temp &= I965_512MB_ADDRESS_MASK;
switch (temp) {
case 0x00:
offset = 0; /* 128MB */
break;
case 0x06:
offset = 3; /* 512MB */
break;
default:
case 0x02:
offset = 2; /* 256MB */
break;
}
agp_bridge->previous_size = agp_bridge->current_size = (void *)(values + offset);
return values[offset].size;
}
/* The intel i965 automatically initializes the agp aperture during POST.
+ * Use the memory already set aside for in the GTT.
+ */
static int intel_i965_create_gatt_table(struct agp_bridge_data *bridge)
{
int page_order;
struct aper_size_info_fixed *size;
int num_entries;
u32 temp;
size = agp_bridge->current_size;
page_order = size->page_order;
num_entries = size->num_entries;
agp_bridge->gatt_table_real = NULL;
pci_read_config_dword(intel_i830_private.i830_dev, I915_MMADDR, &temp);
temp &= 0xfff00000;
intel_i830_private.gtt = ioremap((temp + (512 * 1024)) , 512 * 1024);
if (!intel_i830_private.gtt)
return -ENOMEM;
intel_i830_private.registers = ioremap(temp,128 * 4096);
if (!intel_i830_private.registers)
return -ENOMEM;
temp = readl(intel_i830_private.registers+I810_PGETBL_CTL) & 0xfffff000;
global_cache_flush(); /* FIXME: ? */
/* we have to call this as early as possible after the MMIO base address is known */
intel_i830_init_gtt_entries();
agp_bridge->gatt_table = NULL;
agp_bridge->gatt_bus_addr = temp;
return 0;
}
static int intel_fetch_size(void)
{
@ -1307,7 +1392,7 @@ static struct agp_bridge_driver intel_830_driver = {
.owner = THIS_MODULE,
.aperture_sizes = intel_i830_sizes,
.size_type = FIXED_APER_SIZE,
.num_aperture_sizes = 3,
.num_aperture_sizes = 4,
.needs_scratch_page = TRUE,
.configure = intel_i830_configure,
.fetch_size = intel_i830_fetch_size,
@ -1469,7 +1554,7 @@ static struct agp_bridge_driver intel_915_driver = {
.owner = THIS_MODULE,
.aperture_sizes = intel_i830_sizes,
.size_type = FIXED_APER_SIZE,
.num_aperture_sizes = 3,
.num_aperture_sizes = 4,
.needs_scratch_page = TRUE,
.configure = intel_i915_configure,
.fetch_size = intel_i915_fetch_size,
@ -1489,6 +1574,29 @@ static struct agp_bridge_driver intel_915_driver = {
.agp_destroy_page = agp_generic_destroy_page,
};
static struct agp_bridge_driver intel_i965_driver = {
.owner = THIS_MODULE,
.aperture_sizes = intel_i830_sizes,
.size_type = FIXED_APER_SIZE,
.num_aperture_sizes = 4,
.needs_scratch_page = TRUE,
.configure = intel_i915_configure,
.fetch_size = intel_i965_fetch_size,
.cleanup = intel_i915_cleanup,
.tlb_flush = intel_i810_tlbflush,
.mask_memory = intel_i810_mask_memory,
.masks = intel_i810_masks,
.agp_enable = intel_i810_agp_enable,
.cache_flush = global_cache_flush,
.create_gatt_table = intel_i965_create_gatt_table,
.free_gatt_table = intel_i830_free_gatt_table,
.insert_memory = intel_i915_insert_entries,
.remove_memory = intel_i915_remove_entries,
.alloc_by_type = intel_i830_alloc_by_type,
.free_by_type = intel_i810_free_by_type,
.agp_alloc_page = agp_generic_alloc_page,
.agp_destroy_page = agp_generic_destroy_page,
};
static struct agp_bridge_driver intel_7505_driver = {
.owner = THIS_MODULE,
@ -1684,6 +1792,35 @@ static int __devinit agp_intel_probe(struct pci_dev *pdev,
bridge->driver = &intel_845_driver;
name = "945GM";
break;
case PCI_DEVICE_ID_INTEL_82946GZ_HB:
if (find_i830(PCI_DEVICE_ID_INTEL_82946GZ_IG))
bridge->driver = &intel_i965_driver;
else
bridge->driver = &intel_845_driver;
name = "946GZ";
break;
case PCI_DEVICE_ID_INTEL_82965G_1_HB:
if (find_i830(PCI_DEVICE_ID_INTEL_82965G_1_IG))
bridge->driver = &intel_i965_driver;
else
bridge->driver = &intel_845_driver;
name = "965G";
break;
case PCI_DEVICE_ID_INTEL_82965Q_HB:
if (find_i830(PCI_DEVICE_ID_INTEL_82965Q_IG))
bridge->driver = &intel_i965_driver;
else
bridge->driver = &intel_845_driver;
name = "965Q";
break;
case PCI_DEVICE_ID_INTEL_82965G_HB:
if (find_i830(PCI_DEVICE_ID_INTEL_82965G_IG))
bridge->driver = &intel_i965_driver;
else
bridge->driver = &intel_845_driver;
name = "965G";
break;
case PCI_DEVICE_ID_INTEL_7505_0:
bridge->driver = &intel_7505_driver;
name = "E7505";
@ -1766,6 +1903,7 @@ static void __devexit agp_intel_remove(struct pci_dev *pdev)
agp_put_bridge(bridge);
}
#ifdef CONFIG_PM
static int agp_intel_resume(struct pci_dev *pdev)
{
struct agp_bridge_data *bridge = pci_get_drvdata(pdev);
@ -1786,9 +1924,12 @@ static int agp_intel_resume(struct pci_dev *pdev)
intel_i830_configure();
else if (bridge->driver == &intel_810_driver)
intel_i810_configure();
else if (bridge->driver == &intel_i965_driver)
intel_i915_configure();
return 0;
}
#endif
static struct pci_device_id agp_intel_pci_table[] = {
#define ID(x) \
@ -1825,6 +1966,10 @@ static struct pci_device_id agp_intel_pci_table[] = {
ID(PCI_DEVICE_ID_INTEL_82915GM_HB),
ID(PCI_DEVICE_ID_INTEL_82945G_HB),
ID(PCI_DEVICE_ID_INTEL_82945GM_HB),
ID(PCI_DEVICE_ID_INTEL_82946GZ_HB),
ID(PCI_DEVICE_ID_INTEL_82965G_1_HB),
ID(PCI_DEVICE_ID_INTEL_82965Q_HB),
ID(PCI_DEVICE_ID_INTEL_82965G_HB),
{ }
};
@ -1835,7 +1980,9 @@ static struct pci_driver agp_intel_pci_driver = {
.id_table = agp_intel_pci_table,
.probe = agp_intel_probe,
.remove = __devexit_p(agp_intel_remove),
#ifdef CONFIG_PM
.resume = agp_intel_resume,
#endif
};
static int __init agp_intel_init(void)

4
drivers/char/agp/via-agp.c
View File

@ -9,7 +9,7 @@
#include <linux/agp_backend.h>
#include "agp.h"
static struct pci_device_id agp_via_pci_table[];
static const struct pci_device_id agp_via_pci_table[];
#define VIA_GARTCTRL 0x80
#define VIA_APSIZE 0x84
@ -485,7 +485,7 @@ static int agp_via_resume(struct pci_dev *pdev)
#endif /* CONFIG_PM */
/* must be the same order as name table above */
static struct pci_device_id agp_via_pci_table[] = {
static const struct pci_device_id agp_via_pci_table[] = {
#define ID(x) \
{ \
.class = (PCI_CLASS_BRIDGE_HOST << 8), \

1
include/linux/mm.h
View File

@ -1013,6 +1013,7 @@ static inline unsigned long vma_pages(struct vm_area_struct *vma)
return (vma->vm_end - vma->vm_start) >> PAGE_SHIFT;
}
pgprot_t vm_get_page_prot(unsigned long vm_flags);
struct vm_area_struct *find_extend_vma(struct mm_struct *, unsigned long addr);
struct page *vmalloc_to_page(void *addr);
unsigned long vmalloc_to_pfn(void *addr);

7
mm/mmap.c
View File

@ -64,6 +64,13 @@ pgprot_t protection_map[16] = {
__S000, __S001, __S010, __S011, __S100, __S101, __S110, __S111
};
pgprot_t vm_get_page_prot(unsigned long vm_flags)
{
return protection_map[vm_flags &
(VM_READ|VM_WRITE|VM_EXEC|VM_SHARED)];
}
EXPORT_SYMBOL(vm_get_page_prot);
int sysctl_overcommit_memory = OVERCOMMIT_GUESS; /* heuristic overcommit */
int sysctl_overcommit_ratio = 50; /* default is 50% */
int sysctl_max_map_count __read_mostly = DEFAULT_MAX_MAP_COUNT;