tu: add support for aliased render target components
a7xx introduced support for aliasing render target components using
alias.rt. This allows components to be bound to uniform (const or
immediate) values in the preamble:
alias.rt.f32.0 rt0.y, c0.x
alias.rt.f32.0 rt1.z, (1.000000)
This aliases the 2nd component of RT0 to c0.x and the 3rd component of
RT1 to the immediate 1.0. All components of all 8 render targets can be
aliased.
In addition to using alias.rt, the hardware needs to be informed about
which render target components are being aliased using the
SP_PS_ALIASED_COMPONENTS{_CONTROL} registers. This commit implements
those registers.
Signed-off-by: Job Noorman <jnoorman@igalia.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/31222>
2 files changed
