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* Prepared having hardware cursor support; got quite complicated because there

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is no good (or reliable) way to retrieve the physical address of "stolen"
  (by the BIOS) graphics memory.
* Implemented allocation of additional graphics memory in case the BIOS was
  a bit too cheap. We now guarantee 8 MB of memory available to the graphics
  chip - would be nicer to only allocate that on demand, though.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@17433 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
Axel Dörfler
2006-05-13 09:19:56 +00:00
parent c8609aed8c
commit ccb666bc0e
6 changed files with 159 additions and 45 deletions
Download Patch File Download Diff File Expand all files Collapse all files
headers/private/graphics/intel_extreme/intel_extreme.h
+18 -6
View File
@@ -20,11 +20,11 @@
#define VENDOR_ID_INTEL 0x8086
enum {
INTEL_TYPE_7xx,
INTEL_TYPE_8xx,
INTEL_TYPE_9xx,
};
#define INTEL_TYPE_7xx 0x01
#define INTEL_TYPE_8xx 0x02
#define INTEL_TYPE_9xx 0x03
#define INTEL_TYPE_83x 0x10
#define INTEL_TYPE_85x 0x20
#define DEVICE_NAME "intel_extreme"
#define INTEL_ACCELERANT_NAME "intel_extreme.accelerant"
@@ -64,6 +64,7 @@ struct intel_shared_info {
area_id registers_area; // area of memory mapped registers
uint8 *physical_status_page;
area_id cursor_area;
uint8 *physical_cursor_memory;
area_id graphics_memory_area;
uint8 *graphics_memory;
@@ -94,12 +95,15 @@ struct intel_info {
area_id registers_area;
struct intel_shared_info *shared_info;
area_id shared_area;
area_id cursor_area;
struct overlay_registers *overlay_registers;
// update buffer, shares an area with shared_info
uint8 *graphics_memory;
area_id graphics_memory_area;
area_id additional_memory_area;
// allocated memory beyond the "stolen" amount
mem_info *memory_manager;
const char *device_identifier;
@@ -162,10 +166,12 @@ struct intel_free_graphics_memory {
#define i855_STOLEN_MEMORY_48M 0x60
#define i855_STOLEN_MEMORY_64M 0x70
#define INTEL_PAGE_TABLE_CONTROL 0x02020
#define INTEL_PAGE_TABLE_ERROR 0x02024
#define INTEL_HARDWARE_STATUS_PAGE 0x02080
#define INTEL_GTT_BASE 0x10000 // (- 0x2ffff)
#define GTT_ENTRY_VALID 0x01
#define GTT_ENTRY_LOCAL_MEMORY 0x02
#define INTEL_PRIMARY_RING_BUFFER 0x02030
#define INTEL_SECONDARY_RING_BUFFER_0 0x02100
@@ -232,6 +238,12 @@ struct intel_free_graphics_memory {
#define DISPLAY_MONITOR_POSITIVE_HSYNC (1UL << 3)
#define DISPLAY_MONITOR_POSITIVE_VSYNC (2UL << 3)
#define INTEL_CURSOR_CONTROL 0x70080
#define INTEL_CURSOR_BASE 0x70084
#define INTEL_CURSOR_POSITION 0x70088
#define INTEL_CURSOR_PALETTE 0x70090 // (- 0x7009f)
#define INTEL_CURSOR_SIZE 0x700a0
// ring buffer commands
#define COMMAND_NOOP 0x00