vc4: Initial skeleton driver import.

This mostly just takes every draw call and turns it into a sequence of
commands that clear the FBO and draw a single shaded triangle to it,
regardless of the actual input vertices or shaders.  I copied the initial
driver skeleton mostly from freedreno, and I've preserved Rob Clark's
copyright for those.  I also based my initial hardcoded shaders and
command lists on Scott Mansell (phire)'s "hackdriver" project, though the
bit patterns of the shaders emitted end up being different.

v2: Rebase on gallium megadrivers changes.
v3: Rebase on PIPE_SHADER_CAP_MAX_CONSTS change.
v4: Rely on simpenrose actually being installed when building for
    simulation.
v5: Add more header duplicate-include guards.
v6: Apply Emil's review (protection against vc4 sim and ilo at the same
    time, and dropping the dricommon drm bits) and fix a copyright header
    (thanks, Roland)

1 files changed, 8 insertions, 0 deletions

diff --git a/src/gallium/drivers/Makefile.am b/src/gallium/drivers/Makefile.am
index 3d53cade7b8..bb943a025d9 100644
--- a/src/gallium/drivers/Makefile.am
+++ b/src/gallium/drivers/Makefile.am
@@ -90,3 +90,11 @@ if NEED_GALLIUM_LLVMPIPE_DRIVER
 SUBDIRS += llvmpipe
 
 endif
+
+################################################################################
+
+if HAVE_GALLIUM_VC4
+
+SUBDIRS += vc4
+
+endif