From bdad933375e20302111522ea80d5b94d8ec70bb7 Mon Sep 17 00:00:00 2001
From: Rudolf Cornelissen
Date: Sun, 1 Feb 2004 12:58:48 +0000
Subject: [PATCH] CRTC1/2 mode granularity updates again
git-svn-id: file:///srv/svn/repos/haiku/trunk/current@6458 a95241bf-73f2-0310-859d-f6bbb57e9c96
---
.../accelerants/nvidia/engine/nv_general.c | 46 ++++++++++---------
.../drivers/graphics/nvidia/UPDATE.html | 4 +-
2 files changed, 26 insertions(+), 24 deletions(-)
diff --git a/src/add-ons/accelerants/nvidia/engine/nv_general.c b/src/add-ons/accelerants/nvidia/engine/nv_general.c
index 2e9861a257..241fd020a3 100644
--- a/src/add-ons/accelerants/nvidia/engine/nv_general.c
+++ b/src/add-ons/accelerants/nvidia/engine/nv_general.c
@@ -1,7 +1,7 @@
/* Authors:
Mark Watson 12/1999,
Apsed,
- Rudolf Cornelissen 10/2002-1/2004
+ Rudolf Cornelissen 10/2002-2/2004
*/
#define MODULE_BIT 0x00008000
@@ -80,7 +80,7 @@ status_t nv_general_powerup()
{
status_t status;
- LOG(1,("POWERUP: nVidia (open)BeOS Accelerant 0.08-11 running.\n"));
+ LOG(1,("POWERUP: nVidia (open)BeOS Accelerant 0.08-12 running.\n"));
/* preset no laptop */
si->ps.laptop = false;
@@ -891,8 +891,9 @@ status_t nv_general_bios_to_powergraphics()
/* enable 'enhanced' mode on primary head: */
/* enable access to primary head */
if (si->ps.secondary_head) CRTCW(OWNER, 0x00);
- /* don't doublebuffer CRTC access: set programmed values immediately */
- CRTCW(BUFFER, 0xff);
+ /* don't doublebuffer CRTC access: set programmed values immediately;
+ * keep fine pitched CRTC granularity on > NV4 cards (b2 = 0) */
+ CRTCW(BUFFER, 0xfb);
/* select VGA mode (old VGA register) */
CRTCW(MODECTL, 0xc3);
/* select graphics mode (old VGA register) */
@@ -916,8 +917,9 @@ status_t nv_general_bios_to_powergraphics()
CRTC2W(OWNER, 0x03);
/* select colormode CRTC2 registers base adresses */
NV_REG8(NV8_MISCW) = 0xcb;
- /* don't doublebuffer CRTC2 access: set programmed values immediately */
- CRTC2W(BUFFER, 0xff);
+ /* don't doublebuffer CRTC2 access: set programmed values immediately;
+ * keep fine pitched CRTC2 granularity (b2 = 0) */
+ CRTC2W(BUFFER, 0xfb);
/* select VGA mode (old VGA register) */
CRTC2W(MODECTL, 0xc3);
/* select graphics mode (old VGA register) */
@@ -1009,20 +1011,16 @@ status_t nv_general_validate_pic_size (display_mode *target, uint32 *bytes_per_r
}
/* determine pixel multiple based on CRTC memory pitch constraints:
- * -> all NV cards have same constraints on CRTC1 and CRTC2;
- * -> if CRTC1 and CRTC2 are adressed in combined mode (OWNER = $04),
- * dualhead cards have the same CRTC granularity as singlehead cards;
- * -> if CRTC1 and CRTC2 are adressed seperately (OWNER is $00 or $03),
- * dualhead cards have bigger granularity than singlehead cards: this
- * mode is used on dualhead cards with this driver.
+ * -> all NV cards have same granularity constraints on CRTC1 and CRTC2,
+ * provided that the CRTC1 and CRTC2 BUFFER register b2 = 0;
*
* (Note: Don't mix this up with CRTC timing contraints! Those are
* multiples of 8 for horizontal, 1 for vertical timing.) */
- if (si->ps.secondary_head)
+ if (0)
{
/* confirmed for:
- * GeForceFX 5200 */
- // fixme: still confirm for GeForce2 MX400, GeForce4 MX440, GeForceFX 5600...
+ * TNT2, TNT2-M64, GeForce2 MX400, GeForce4 MX440, GeForceFX 5200 if
+ * the CRTC1 (and CRTC2) BUFFER register b2 = 1 */
switch (target->space)
{
case B_CMAP8: crtc_mask = 0x1f; break;
@@ -1035,10 +1033,12 @@ status_t nv_general_validate_pic_size (display_mode *target, uint32 *bytes_per_r
return B_ERROR;
}
}
- else /* singlehead cards */
+ else
{
/* confirmed for:
- * TNT1, TNT2, TNT2-M64 */
+ * TNT1 always;
+ * TNT2, TNT2-M64, GeForce2 MX400, GeForce4 MX440, GeForceFX 5200 if
+ * the CRTC1 (and CRTC2) BUFFER register b2 = 0 */
switch (target->space)
{
case B_CMAP8: crtc_mask = 0x07; break;
@@ -1105,11 +1105,11 @@ status_t nv_general_validate_pic_size (display_mode *target, uint32 *bytes_per_r
}
/* set virtual_width limit for unaccelerated modes */
- if (si->ps.secondary_head)
+ if (0)
{
/* confirmed for:
- * GeForceFX 5200 */
- // fixme: still confirm for GeForce2 MX400, GeForce4 MX440, GeForceFX 5600...
+ * TNT2, TNT2-M64, GeForce2 MX400, GeForce4 MX440, GeForceFX 5200 if
+ * the CRTC1 (and CRTC2) BUFFER register b2 = 1 */
switch(target->space)
{
case B_CMAP8: max_crtc_width = 16352; break;
@@ -1122,10 +1122,12 @@ status_t nv_general_validate_pic_size (display_mode *target, uint32 *bytes_per_r
return B_ERROR;
}
}
- else /* singlehead cards */
+ else
{
/* confirmed for:
- * TNT1, TNT2, TNT2-M64 */
+ * TNT1 always;
+ * TNT2, TNT2-M64, GeForce2 MX400, GeForce4 MX440, GeForceFX 5200 if
+ * the CRTC1 (and CRTC2) BUFFER register b2 = 0 */
switch(target->space)
{
case B_CMAP8: max_crtc_width = 16376; break;
diff --git a/src/add-ons/kernel/drivers/graphics/nvidia/UPDATE.html b/src/add-ons/kernel/drivers/graphics/nvidia/UPDATE.html
index 6dc828a19b..93dacad541 100644
--- a/src/add-ons/kernel/drivers/graphics/nvidia/UPDATE.html
+++ b/src/add-ons/kernel/drivers/graphics/nvidia/UPDATE.html
@@ -4,7 +4,7 @@
Changes done for each driverversion:
-head (0.08-11, Rudolf)
+head (0.08-12, Rudolf)
- Fixed GeForceFX 5600 and FX 5700 monitor 'refresh out of range' / shutoff fault. nVidia changed the pixelPLL for the NV31 and NV36;
- Fixed acceleration engine restrictions code to adhere to GeForceFX 5600 restrictions: those are still NV20 style for this card;
@@ -17,7 +17,7 @@
- Added 256Mb RAM detection;
- Improved startup code: this should (could) fix random trouble on some cards like for instance hardcursor trouble on especially laptops;
- Added dualhead support (use Mark Watson's 'G400 Dualhead Setup' from BeBits for now);
-
- Updated mode granularity and max virtual size checking/limiting to adhere to new CRTC setup for dualhead cards;
+
- Updated mode granularity and max virtual size checking/limiting;
- Added dualhead support for 8- and 15bit colordepths;
- Fixed move_display distortions in virtualscreens especially visible in 8-bit colordepth (for both heads);
- Added 'overlay follows head' for dualhead stretch and switch modes: if more than half the overlay output window is on a screen, that screen gets the overlay output;