Most modern hardware needs the edge flag added as a hidden vertex input
and needs code added to the vertex shader to copy the input to an
output. Intel hardware is a little different. Gfx4 and Gfx5 hardware
works in the previously described mannter. Gfx6+ hardware needs the
edge flag as a specific vertex shader input, and that input is magically
processed by fixed-function hardware without need for extra shader code.
This flag signals only that the vertex shader input is needed. It would
be nice if we could decouple adding the vertex shader input from
generating the copy-to-output code, but that has proven to be
challenging. Not having that code causes other passes to want to
eliminate that shader input.
v2: Convert conditional to assertion. This pass is only called for
vertex shaders. Suggested by Ken.
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/12858>
The lowering passes will soon be moved to another function, so there
won't be any choice.
As a side benefit, this allows eliminating the uses_atomic_load_store
**pointer** parameter from brw_nir_lower_storage_image. For some reason
crocus was passing false instead of NULL.
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/12858>
...instead of looking for "ARB" in the name of the shader. This matches
the behavior of i965. Using "ARB" was added in a1ebac3750 ("iris:
Implement ALT mode for ARB_{vertex,fragment}_shader"), but there's no
explanation of why that method was used.
v2: Just use shader_info::is_arb_asm everywhere instead of
iris_uncompiled_shader::use_alt_mode. Suggested by Ken.
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/12858>
No need to re-create this every time we transition from stream-out
enabled to disabled.
Creation of streamout_disable_stateobj is deferred until we create
a program state using streamout to avoid creating it unnecessarily
and because fd6_prog_init() is called before ctx->pipe is created.
(Changing that ordering is complicated by the fact that u_blitter
copies pctx->bind_fs_state(), and friends.)
Signed-off-by: Rob Clark <robdclark@chromium.org>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/12918>
Some more extreme examples, like gl_driver2_off, can be bottlenecked on
writes to cmdstream. OTOH the CP is pretty pipelined in how it slurps
in memory, so the penalty of using coherent buffers should not be so
much.
Signed-off-by: Rob Clark <robdclark@chromium.org>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/11176>
It hasn't really mattered until now, as we keep a separate cache for
cmdstream (which is FD_BO_GPU_READONLY), and the only other flag so
far is FD_BO_SCANOUT (which the bo cache probably messes up, but it
does not matter on most hw, and on hw where it does the scanout buffer
will be imported (and therefore won't end up in the bo cache).
But when we add cached-coherent (or if we wanted to use GPU_READONLY
more) it starts to matter.
Signed-off-by: Rob Clark <robdclark@chromium.org>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/11176>
When moving the batch cache to the context, I added hash table lookups
from batch to rsc for "is this resource in use" because we could no longer
store data in the rsc bo under the batch cache's lock.
We can save that cost by tracking a bitfield of resources referenced by
the batch, which gives us very cheap checks in the draw path at a minor
cost in memory. We can just use the GEM BO handle, since it's a nice
small integer already (we can't use the TC buffer ID, because the frontend
changes that, and we're in the driver thread).
This required moving the !pending() assert up in resource shadowing, since
the BO swap meant we were checking pending on the wrong resource.
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/11511>
I think the whole submit lock thing should be possible to remove now, but
just getting rid of the lock since we're no longer sharing batches between
ctxes means another several percent draw overhead improvement.
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/11511>
In moving batch cache to the context, the check for whether there's
pending work being done to this resources ends up accessing the context,
so we can't do it outside of the fd_context_access_begin(). This flag
lets us do the driver-thread asserts before we've decided whether we need
to flush.
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/11511>
This prevents other optimizations from associating the inner multiply,
which can add inaccuracies that can lead to discontinuities around the
boundary of the ffract. We should use exactly the sequence that the blob
uses to avoid problems.
Since fadd + fmul cannot be combined to ffma when exact is specified, we
have to use ffma ourselves.
Fixes artifacts in PixMark Volplosion with !7458.
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/12912>
this parameter is only a hint, as tc provides no method for tracking cases
when a buffer is bound multiple times to the same site (e.g., multiple vertex
buffer slots will be counted as 1 bind), so rename to "minimum" to be more clear
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/12898>
upgrade_vertex copies save->copied.nr vertices to the vertex buffer,
so we need to make sure it has enough space to accomodate them.
This commit also drops the usage of COPY_CLEAN_4V_TYPE_AS_UNION in
this function because it always writes 4-components for all attributes,
but our buffer might be smaller. Instead, only write the needed
components.
Closes: https://gitlab.freedesktop.org/mesa/mesa/-/issues/5353
Fixes: cc57156dce ("vbo/dlist: rework vertex_store management")
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/12849>
The fd_fence_finish() may be passed a special timeout value PIPE_TIMEOUT_INFINITE.
This gets propagated all the way to get_abs_timeout(), where it gets converted to
a huge timeout value and passed down to the kernel. At least on iMX53, the kernel
may complain about this value being too large and emit a backtrace. The relevant
piece of information there is the following:
schedule_timeout: wrong timeout value bf94984b
Per suggestion by Rob Clark, fix this in get_abs_timeout() by picking the same
rollover implementation present in etnaviv. This fixes one part of the problem
where the tv_nsec becomes larger than NSEC_PER_SEC, which is invalid.
However, the PIPE_TIMEOUT_INFINITE is sufficiently large to make tv_secs larger
than KTIME_SEC_MAX, which makes kernel-side ktime_set() return KTIME_MAX and
that in turn triggers the above "wrong timeout value N" message. Fix this by
setting the timeout to large enough value in case of PIPE_TIMEOUT_INFINITE.
While the timeout is not truly infinite, the timeout is long enough as anything
longer than a few seconds means the GPU got hung.
The "util/timespec.h" is added so we can use NSEC_PER_SEC instead of ad-hoc
constant 1000000000 . The "pipe/p_defines.h" is needed for PIPE_TIMEOUT_INFINITE.
This problem can be reliably triggered on iMX53 using Qt5 with EGLFS support,
using the qtbase examples, as follows:
/usr/share/examples/opengl/qopenglwidget/qopenglwidget -platform eglfs
Fixes: f3cc0d2747 ("freedreno: import libdrm_freedreno + redesign submit")
Signed-off-by: Marek Vasut <marex@denx.de>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/12886>
