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diff -up Mesa-8.0.1/src/gallium/include/state_tracker/drm_driver.h.jx Mesa-8.0.1/src/gallium/include/state_tracker/drm_driver.h
--- Mesa-8.0.1/src/gallium/include/state_tracker/drm_driver.h.jx 2012-02-14 18:44:00.000000000 -0500
+++ Mesa-8.0.1/src/gallium/include/state_tracker/drm_driver.h 2012-03-23 13:11:40.785842579 -0400
@@ -43,6 +43,7 @@ struct winsys_handle
enum drm_conf {
/* How many frames to allow before throttling. Or -1 to indicate any number */
DRM_CONF_THROTTLE, /* DRM_CONF_INT. */
+ DRM_CONF_NOTFP,
DRM_CONF_MAX
};
diff -up Mesa-8.0.1/src/gallium/state_trackers/dri/drm/dri2.c.jx Mesa-8.0.1/src/gallium/state_trackers/dri/drm/dri2.c
--- Mesa-8.0.1/src/gallium/state_trackers/dri/drm/dri2.c.jx 2012-02-14 18:44:00.000000000 -0500
+++ Mesa-8.0.1/src/gallium/state_trackers/dri/drm/dri2.c 2012-03-23 13:11:40.785842579 -0400
@@ -642,6 +642,13 @@ static struct __DRIimageExtensionRec dri
* Backend function init_screen.
*/
+static const __DRIextension *dri_screen_extensions_no_tfp[] = {
+ &dri2FlushExtension.base,
+ &dri2ImageExtension.base,
+ &dri2ConfigQueryExtension.base,
+ NULL
+};
+
static const __DRIextension *dri_screen_extensions[] = {
&driTexBufferExtension.base,
&dri2FlushExtension.base,
@@ -671,6 +678,7 @@ dri2_init_screen(__DRIscreen * sPriv)
struct dri_screen *screen;
struct pipe_screen *pscreen;
const struct drm_conf_ret *throttle_ret = NULL;
+ const struct drm_conf_ret *notfp_ret = NULL;
screen = CALLOC_STRUCT(dri_screen);
if (!screen)
@@ -682,12 +690,16 @@ dri2_init_screen(__DRIscreen * sPriv)
sPriv->driverPrivate = (void *)screen;
pscreen = driver_descriptor.create_screen(screen->fd);
- if (driver_descriptor.configuration)
+ if (driver_descriptor.configuration) {
throttle_ret = driver_descriptor.configuration(DRM_CONF_THROTTLE);
+ throttle_ret = driver_descriptor.configuration(DRM_CONF_NOTFP);
+ }
if (throttle_ret && throttle_ret->val.val_int != -1) {
sPriv->extensions = dri_screen_extensions_throttle;
screen->default_throttle_frames = throttle_ret->val.val_int;
+ } else if (notfp_ret && notfp_ret->val.val_bool == 1) {
+ sPriv->extensions = dri_screen_extensions_no_tfp;
} else
sPriv->extensions = dri_screen_extensions;
diff -up Mesa-8.0.1/src/gallium/targets/dri-nouveau/target.c.jx Mesa-8.0.1/src/gallium/targets/dri-nouveau/target.c
--- Mesa-8.0.1/src/gallium/targets/dri-nouveau/target.c.jx 2012-02-14 18:44:00.000000000 -0500
+++ Mesa-8.0.1/src/gallium/targets/dri-nouveau/target.c 2012-03-23 13:14:37.824416888 -0400
@@ -3,6 +3,12 @@
#include "state_tracker/drm_driver.h"
#include "nouveau/drm/nouveau_drm_public.h"
+#include <xf86drm.h>
+#include <nouveau_drm.h>
+
+/* yes this is an ugly hack */
+static int nvfd = -1;
+
static struct pipe_screen *
create_screen(int fd)
{
@@ -12,9 +18,52 @@ create_screen(int fd)
if (!screen)
return NULL;
+ nvfd = fd;
+
screen = debug_screen_wrap(screen);
return screen;
}
-DRM_DRIVER_DESCRIPTOR("nouveau", "nouveau", create_screen, NULL)
+static const struct drm_conf_ret notfp_ret = {
+ .type = DRM_CONF_BOOL,
+ .val.val_bool = 1,
+};
+
+static const struct drm_conf_ret *drm_configuration(enum drm_conf conf)
+{
+ switch (conf) {
+ case DRM_CONF_NOTFP:
+ {
+ /* have to open-code to reuse the fd */
+ struct drm_nouveau_getparam g;
+ int vram;
+
+ g.param = NOUVEAU_GETPARAM_CHIPSET_ID;
+ if (drmCommandWriteRead(nvfd, DRM_NOUVEAU_GETPARAM, &g, sizeof(g)))
+ return ¬fp_ret; /* error? paranoia */
+
+ if (g.value < 0x50)
+ return NULL; /* nv50+ okay */
+
+ if (g.value & 0xf0 == 0x30)
+ return ¬fp_ret; /* nv30 definitely horked */
+
+ g.param = NOUVEAU_GETPARAM_FB_SIZE;
+ if (drmCommandWriteRead(nvfd, DRM_NOUVEAU_GETPARAM, &g, sizeof(g)))
+ return ¬fp_ret; /* error? paranoia */
+
+ vram = g.value;
+ if ((vram >> 20) <= 64)
+ return ¬fp_ret; /* let's say <64M is too little */
+
+ return NULL;
+ }
+
+ default:
+ break;
+ }
+ return NULL;
+}
+
+DRM_DRIVER_DESCRIPTOR("nouveau", "nouveau", create_screen, drm_configuration)
diff -up Mesa-8.0.1/src/mesa/drivers/dri/nouveau/nouveau_screen.c.jx Mesa-8.0.1/src/mesa/drivers/dri/nouveau/nouveau_screen.c
--- Mesa-8.0.1/src/mesa/drivers/dri/nouveau/nouveau_screen.c.jx 2012-02-14 18:44:00.000000000 -0500
+++ Mesa-8.0.1/src/mesa/drivers/dri/nouveau/nouveau_screen.c 2012-03-23 13:38:34.477024222 -0400
@@ -37,7 +37,11 @@
#include "main/renderbuffer.h"
#include "swrast/s_renderbuffer.h"
+#include <xf86drm.h>
+#include <nouveau_drm.h>
+
static const __DRIextension *nouveau_screen_extensions[];
+static const __DRIextension *nouveau_screen_extensions_notfp[];
static void
nouveau_destroy_screen(__DRIscreen *dri_screen);
@@ -86,6 +90,28 @@ nouveau_get_configs(void)
return (const __DRIconfig **)configs;
}
+static int
+shouldnt_tfp(int nvfd)
+{
+ /* have to open-code to reuse the fd */
+ struct drm_nouveau_getparam g;
+ int vram;
+
+ g.param = NOUVEAU_GETPARAM_CHIPSET_ID;
+ if (drmCommandWriteRead(nvfd, DRM_NOUVEAU_GETPARAM, &g, sizeof(g)))
+ return 1; /* error? paranoia */
+
+ g.param = NOUVEAU_GETPARAM_FB_SIZE;
+ if (drmCommandWriteRead(nvfd, DRM_NOUVEAU_GETPARAM, &g, sizeof(g)))
+ return 1; /* error? paranoia */
+
+ vram = g.value;
+ if ((vram >> 20) <= 64)
+ return 1; /* let's say 64M is too little */
+
+ return 0;
+}
+
static const __DRIconfig **
nouveau_init_screen2(__DRIscreen *dri_screen)
{
@@ -99,7 +125,6 @@ nouveau_init_screen2(__DRIscreen *dri_sc
return NULL;
dri_screen->driverPrivate = screen;
- dri_screen->extensions = nouveau_screen_extensions;
screen->dri_screen = dri_screen;
/* Open the DRM device. */
@@ -110,6 +135,11 @@ nouveau_init_screen2(__DRIscreen *dri_sc
goto fail;
}
+ if (shouldnt_tfp(dri_screen->fd))
+ dri_screen->extensions = nouveau_screen_extensions_notfp;
+ else
+ dri_screen->extensions = nouveau_screen_extensions;
+
/* Choose the card specific function pointers. */
switch (screen->device->chipset & 0xf0) {
case 0x00:
@@ -240,6 +270,12 @@ static const __DRIextension *nouveau_scr
&dri2ConfigQueryExtension.base,
NULL
};
+
+static const __DRIextension *nouveau_screen_extensions_notfp[] = {
+ &nouveau_flush_extension.base,
+ &dri2ConfigQueryExtension.base,
+ NULL
+};
const struct __DriverAPIRec driDriverAPI = {
.InitScreen = nouveau_init_screen2,
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