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intel-agp: Fix i830 mask variable that changed with G33 support 

The mask on i830 should be 0x70 always, later chips 0xF0 should be okay.

Signed-off-by: Dave Airlie <airlied@linux.ie>
Acked-by: Zhenyu Wang <zhenyu.z.wang@intel.com>
Cc: Michael Haas <laga@laga.ath.cx>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
hifive-unleashed-5.1
Dave Airlie 2007-09-18 22:46:35 -07:00 committed by Linus Torvalds
parent 8c8bd037e5
commit e67aa27a61
2 changed files with 3 additions and 2 deletions
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3
drivers/char/agp/agp.h
View File

@ -176,7 +176,7 @@ struct agp_bridge_data {
#define I830_GMCH_MEM_MASK 0x1
#define I830_GMCH_MEM_64M 0x1
#define I830_GMCH_MEM_128M 0
#define I830_GMCH_GMS_MASK 0xF0
#define I830_GMCH_GMS_MASK 0x70
#define I830_GMCH_GMS_DISABLED 0x00
#define I830_GMCH_GMS_LOCAL 0x10
#define I830_GMCH_GMS_STOLEN_512 0x20
@ -190,6 +190,7 @@ struct agp_bridge_data {
#define INTEL_I830_ERRSTS 0x92
/* Intel 855GM/852GM registers */
#define I855_GMCH_GMS_MASK 0xF0
#define I855_GMCH_GMS_STOLEN_0M 0x0
#define I855_GMCH_GMS_STOLEN_1M (0x1 << 4)
#define I855_GMCH_GMS_STOLEN_4M (0x2 << 4)

2
drivers/char/agp/intel-agp.c
View File

@ -511,7 +511,7 @@ static void intel_i830_init_gtt_entries(void)
*/
if (IS_G33)
size = 0;
switch (gmch_ctrl & I830_GMCH_GMS_MASK) {
switch (gmch_ctrl & I855_GMCH_GMS_MASK) {
case I855_GMCH_GMS_STOLEN_1M:
gtt_entries = MB(1) - KB(size);
break;