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authorKenneth Graunke <[email protected]>2017-03-02 11:33:37 -0800
committerKenneth Graunke <[email protected]>2017-03-20 15:58:05 -0700
commit9b324e4dca4754801e5db59aba0ab559f2cf35ea (patch)
treee7582fbf6fc205b4b438e2a13688c03722e457e0 /src/mesa
parent99d400b78f03ce33730b7ac8afa5077d6bb31893 (diff)
i965: Fall back to GL 4.2/4.3 on Haswell if the kernel isn't new enough.
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 4.4+. The new version support looks like: - Kernel 4.1 and older => OpenGL 3.3 - Kernel 4.2-4.3 => OpenGL 4.2 - Kernel 4.4-4.7 => OpenGL 4.3 - Kernel 4.8+ => OpenGL 4.5 Cc: "17.0" <[email protected]> Signed-off-by: Kenneth Graunke <[email protected]> Reviewed-by: Samuel Iglesias Gonsálvez <[email protected]>
Diffstat (limited to 'src/mesa')
-rw-r--r--src/mesa/drivers/dri/i965/intel_screen.c11
1 files changed, 9 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..2d8e007e79d 100644
--- a/src/mesa/drivers/dri/i965/intel_screen.c
+++ b/src/mesa/drivers/dri/i965/intel_screen.c
@@ -1554,8 +1554,15 @@ 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)) {
+ dri_screen->max_gl_core_version = 42;
+ if (can_do_compute_dispatch(screen))
+ dri_screen->max_gl_core_version = 43;
+ if (can_do_mi_math_and_lrr(screen))
+ dri_screen->max_gl_core_version = 45;
+ }
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;