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loader/nouveau: load zink as the GL driver for turing and above.

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If the kernel supports modifiers and the GPU is a Turing+ then
force using zink instead of nvc0.

Signed-off-by: Faith Ekstrand <faith.ekstrand@collabora.com>
Reviewed-by: Faith Ekstrand <faith.ekstrand@collabora.com>
Acked-by: Karol Herbst <kherbst@redhat.com>
Acked-by: Mike Blumenkrantz <michael.blumenkrantz@gmail.com>
Reviewed-by: Mel Henning <mhenning@darkrefraction.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/29232>
This commit is contained in:
Dave Airlie 2024-05-16 09:59:57 +10:00 • committed by Marge Bot
parent d1a2ba57f9
commit 2983ca0d20
1 changed files with 11 additions and 6 deletions
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17
src/loader/loader.c
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@ -146,12 +146,17 @@ nouveau_zink_predicate(int fd, const char *driver)
bool prefer_zink = false;
/* enable this once zink is up to speed.
* struct drm_nouveau_getparam r = { .param = NOUVEAU_GETPARAM_CHIPSET_ID };
* int ret = drmCommandWriteRead(fd, DRM_NOUVEAU_GETPARAM, &r, sizeof(r));
* if (ret == 0 && (r.value & ~0xf) >= 0x160)
* prefer_zink = true;
*/
/* enable this once zink is up to speed. */
struct drm_nouveau_getparam r = { .param = NOUVEAU_GETPARAM_HAS_VMA_TILEMODE };
int ret = drmCommandWriteRead(fd, DRM_NOUVEAU_GETPARAM, &r, sizeof(r));
if (ret == 0 && r.value == 1) {
r.param = NOUVEAU_GETPARAM_CHIPSET_ID;
r.value = 0;
ret = drmCommandWriteRead(fd, DRM_NOUVEAU_GETPARAM, &r, sizeof(r));
if (ret == 0 && r.value >= 0x160) {
prefer_zink = true;
}
}
prefer_zink = debug_get_bool_option("NOUVEAU_USE_ZINK", prefer_zink);