In commit d2590eb65ff28a9cbd592353d15d7e6cbd2c6fc6 I enabled GL 4.5
on Haswell...but failed to check if we could do indirect compute
shader dispatch...and query buffer objects.
Indirect compute shader dispatch requires command parser version 5
(kernel commit 7b9748cb513a6bef4af87b79f0da3ff7e8b56cd8, which is in
Linux v4.4). On earlier kernels we would have disabled
ARB_compute_shader, which is a mandatory part of OpenGL 4.3+.
Query buffer objects currently require MI_MATH and MI_LOAD_REGISTER_REG,
which mean command parser version 7 (Linux v4.8). On earlier kernels
we would have disabled ARB_query_buffer_object, which is a mandatory
part of OpenGL 4.3+.
The new version support looks like:
- Kernel 4.1 and older => OpenGL 3.3
- Kernel 4.2-4.7 => OpenGL 4.2
- Kernel 4.8+ => OpenGL 4.5
Cc: "17.0" <mesa-sta...@lists.freedesktop.org>
Signed-off-by: Kenneth Graunke <kenn...@whitecape.org>
---
src/mesa/drivers/dri/i965/intel_screen.c | 9 +++++++--
1 file changed, 7 insertions(+), 2 deletions(-)
diff --git a/src/mesa/drivers/dri/i965/intel_screen.c
b/src/mesa/drivers/dri/i965/intel_screen.c
index 81cb0deabb3..225a387fa90 100644
--- a/src/mesa/drivers/dri/i965/intel_screen.c
+++ b/src/mesa/drivers/dri/i965/intel_screen.c
@@ -1554,8 +1554,13 @@ set_max_gl_versions(struct intel_screen *screen)
dri_screen->max_gl_es2_version = has_astc ? 32 : 31;
break;
case 7:
- dri_screen->max_gl_core_version = screen->devinfo.is_haswell &&
- can_do_pipelined_register_writes(screen) ? 45 : 33;
+ dri_screen->max_gl_core_version = 33;
+ if (screen->devinfo.is_haswell &&
+ can_do_pipelined_register_writes(screen) &&
+ can_do_mi_math_and_lrr(screen)) {
+ dri_screen->max_gl_core_version =
+ can_do_compute_dispatch(screen) ? 45 : 42;
+ }
dri_screen->max_gl_compat_version = 30;
dri_screen->max_gl_es1_version = 11;
dri_screen->max_gl_es2_version = screen->devinfo.is_haswell ? 31 : 30;
--
2.12.0
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