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* Now allocates space for the hardware status page and cursor memory, not yet

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used, though.
* Renamed the PhyisicalPageMapper class to AreaKeeper and made it a bit more
  generic (ie. it can now also create usual areas)
* The shared_info is now created using the AreaKeeper, too, and this actually
  fixes some potential memory leaks.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@17412 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
Axel Dörfler
2006-05-10 12:37:27 +00:00
parent 96451fe133
commit 08ef16abee
4 changed files with 96 additions and 45 deletions
Download Patch File Download Diff File Expand all files Collapse all files
src/add-ons/kernel/drivers/graphics/intel_extreme/intel_extreme.cpp
+50 -22
View File
@@ -19,46 +19,59 @@
#include <errno.h>
class PhysicalMemoryMapper {
class AreaKeeper {
public:
PhysicalMemoryMapper();
~PhysicalMemoryMapper();
AreaKeeper();
~AreaKeeper();
area_id Create(const char *name, void **_virtualAddress, uint32 spec,
size_t size, uint32 lock, uint32 protection);
area_id Map(const char *name, void *physicalAddress, size_t numBytes,
uint32 spec, uint32 protection, void **virtualAddress);
uint32 spec, uint32 protection, void **_virtualAddress);
status_t InitCheck() { return fArea < B_OK ? (status_t)fArea : B_OK; }
void Keep();
void Detach();
private:
area_id fArea;
};
PhysicalMemoryMapper::PhysicalMemoryMapper()
AreaKeeper::AreaKeeper()
:
fArea(-1)
{
}
PhysicalMemoryMapper::~PhysicalMemoryMapper()
AreaKeeper::~AreaKeeper()
{
if (fArea >= B_OK)
delete_area(fArea);
}
area_id
PhysicalMemoryMapper::Map(const char *name, void *physicalAddress, size_t numBytes,
uint32 spec, uint32 protection, void **virtualAddress)
area_id
AreaKeeper::Create(const char *name, void **_virtualAddress, uint32 spec,
size_t size, uint32 lock, uint32 protection)
{
fArea = map_physical_memory(name, physicalAddress, numBytes, spec, protection, virtualAddress);
fArea = create_area(name, _virtualAddress, spec, size, lock, protection);
return fArea;
}
void
PhysicalMemoryMapper::Keep()
area_id
AreaKeeper::Map(const char *name, void *physicalAddress, size_t numBytes,
uint32 spec, uint32 protection, void **_virtualAddress)
{
fArea = map_physical_memory(name, physicalAddress, numBytes, spec, protection,
_virtualAddress);
return fArea;
}
void
AreaKeeper::Detach()
{
fArea = -1;
}
@@ -84,9 +97,10 @@ init_overlay_registers(overlay_registers *registers)
status_t
intel_extreme_init(intel_info &info)
{
info.shared_area = create_area("intel extreme shared info",
AreaKeeper sharedCreator;
info.shared_area = sharedCreator.Create("intel extreme shared info",
(void **)&info.shared_info, B_ANY_KERNEL_ADDRESS,
ROUND_TO_PAGE_SIZE(sizeof(intel_shared_info)) + B_PAGE_SIZE,
ROUND_TO_PAGE_SIZE(sizeof(intel_shared_info)) + 3 * B_PAGE_SIZE,
B_FULL_LOCK, 0);
if (info.shared_area < B_OK)
return info.shared_area;
@@ -120,11 +134,11 @@ intel_extreme_init(intel_info &info)
memorySize *= 64;
break;
}
dprintf("detected %ld MB of stolen memory\n", memorySize / 1024 / 1024);
dprintf(DEVICE_NAME ": detected %ld MB of stolen memory\n", memorySize / 1024 / 1024);
// map frame buffer, try to map it write combined
PhysicalMemoryMapper graphicsMapper;
AreaKeeper graphicsMapper;
info.graphics_memory_area = graphicsMapper.Map("intel extreme graphics memory",
(void *)info.pci->u.h0.base_registers[0],
memorySize, B_ANY_KERNEL_BLOCK_ADDRESS | B_MTR_WC,
@@ -145,7 +159,7 @@ intel_extreme_init(intel_info &info)
// memory mapped I/O
PhysicalMemoryMapper mmioMapper;
AreaKeeper mmioMapper;
info.registers_area = mmioMapper.Map("intel extreme mmio",
(void *)info.pci->u.h0.base_registers[1],
info.pci->u.h0.base_register_sizes[1],
@@ -157,6 +171,8 @@ intel_extreme_init(intel_info &info)
return info.registers_area;
}
dprintf(DEVICE_NAME ": page table control %08lx\n", read32(INTEL_PAGE_TABLE_CONTROL));
// init graphics memory manager
info.memory_manager = mem_init("intel extreme memory manager", 0, memorySize, 1024,
@@ -184,9 +200,10 @@ intel_extreme_init(intel_info &info)
secondary.base = info.graphics_memory + secondary.offset;
}
// no errors, so keep mappings
graphicsMapper.Keep();
mmioMapper.Keep();
// no errors, so keep areas and mappings
sharedCreator.Detach();
graphicsMapper.Detach();
mmioMapper.Detach();
info.shared_info->graphics_memory_area = info.graphics_memory_area;
info.shared_info->registers_area = info.registers_area;
@@ -210,7 +227,7 @@ intel_extreme_init(intel_info &info)
#endif
// setup overlay registers
info.overlay_registers = (overlay_registers *)((uint8 *)info.shared_info
+ ROUND_TO_PAGE_SIZE(sizeof(intel_shared_info)));
init_overlay_registers(info.overlay_registers);
@@ -219,6 +236,17 @@ intel_extreme_init(intel_info &info)
get_memory_map(info.overlay_registers, sizeof(overlay_registers), &physicalEntry, 1);
info.shared_info->physical_overlay_registers = (uint8 *)physicalEntry.address;
// The hardware status page and the cursor memory share one area with
// the overlay registers and the shared info
get_memory_map((uint8 *)info.overlay_registers + B_PAGE_SIZE,
B_PAGE_SIZE, &physicalEntry, 1);
info.shared_info->physical_status_page = (uint8 *)physicalEntry.address;
get_memory_map((uint8 *)info.overlay_registers + 2 * B_PAGE_SIZE,
B_PAGE_SIZE, &physicalEntry, 1);
info.shared_info->physical_cursor_memory = (uint8 *)physicalEntry.address;
info.cookie_magic = INTEL_COOKIE_MAGIC;
// this makes the cookie valid to be used