radeonsi: enable support for GL_NV_shader_atomic_int64

Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6708>
diff --git a/docs/relnotes/new_features.txt b/docs/relnotes/new_features.txt
index 460cca3..112a189 100644
--- a/docs/relnotes/new_features.txt
+++ b/docs/relnotes/new_features.txt
@@ -1,6 +1,7 @@
 GL 4.5 on llvmpipe
 GL_NV_copy_depth_to_color for NIR
 GL_NV_half_float
+GL_NV_shader_atomic_int64 on radeonsi
 EGL_KHR_swap_buffers_with_damage on X11 (DRI3)
 VK_PRESENT_MODE_FIFO_RELAXED on X11
 GLX_EXT_swap_control for DRI2 and DRI3
diff --git a/src/gallium/drivers/radeonsi/si_get.c b/src/gallium/drivers/radeonsi/si_get.c
index 4c68474..958d06b 100644
--- a/src/gallium/drivers/radeonsi/si_get.c
+++ b/src/gallium/drivers/radeonsi/si_get.c
@@ -161,6 +161,7 @@
    case PIPE_CAP_ALPHA_TO_COVERAGE_DITHER_CONTROL:
    case PIPE_CAP_MAP_UNSYNCHRONIZED_THREAD_SAFE:
    case PIPE_CAP_NO_CLIP_ON_COPY_TEX:
+   case PIPE_CAP_SHADER_ATOMIC_INT64:
       return 1;
 
    case PIPE_CAP_GLSL_ZERO_INIT: