Commit graph

484 commits

Author SHA1 Message Date
Tomeu Vizoso
63ae9e61c1 panfrost: Add PAN_MESA_DEBUG=sync
Sometimes it's useful to get information about GPU faults in the
console, so it's synchronized with other messages.

This commit will cause Mesa to wait for completion and check if there
are any faults raised by the GPU.

Signed-off-by: Tomeu Vizoso <tomeu.vizoso@collabora.com>
Reviewed-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
2019-12-11 08:01:20 +01:00
Urja Rannikko
d07ed0c9c9 panfrost: free spill cost table in mir_spill_register
Signed-off-by: Urja Rannikko <urjaman@gmail.com>
Reviewed-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
2019-12-06 15:26:13 +00:00
Urja Rannikko
12e393bacf panfrost: add lcra_free() to free lcra state
Signed-off-by: Urja Rannikko <urjaman@gmail.com>
Reviewed-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
2019-12-06 15:26:13 +00:00
Urja Rannikko
5b6108834b panfrost: free allocations in schedule_block
Signed-off-by: Urja Rannikko <urjaman@gmail.com>
Reviewed-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
2019-12-06 15:26:13 +00:00
Urja Rannikko
e2dbea683c panfrost: free last_read/write tables in mir_create_dependency_graph
Signed-off-by: Urja Rannikko <urjaman@gmail.com>
Reviewed-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
2019-12-06 15:26:13 +00:00
Alyssa Rosenzweig
adf716dc7f panfrost: Rename SET_VALUE to WRITE_VALUE
See
https://lists.freedesktop.org/archives/dri-devel/2019-December/247601.html

Write value emphasises that it's just a generic write primitive.

Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
2019-12-06 14:37:17 +00:00
Alyssa Rosenzweig
9eae950342 panfrost: Update SET_VALUE with information from igt
It's not a tiler specific initialization; it's a generic GPU-side write
primitive that may be used for tiler reset on midgard.

Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
2019-12-06 14:37:17 +00:00
Alyssa Rosenzweig
71dd52e056 panfrost: Remove blend shader hack
This is no longer used.

Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
2019-12-03 04:25:04 +00:00
Alyssa Rosenzweig
8555bffafd pan/midgard: Splatter on fragment out
Make sure that the fragment is complete when writing it out.

Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Signed-off-by: Tomeu Vizoso <tomeu.vizoso@collabora.com>
2019-12-03 04:25:04 +00:00
Alyssa Rosenzweig
9fb0904712 panfrost: Implement pan_tiler for non-hierarchy GPUs
The algorithm is as described. Nothing fancy here, just need to add some
new code paths depending on which model we're running on.

Tomeu:
- Also disable tiling when !hierarchy and !vertex_count
- Avoid creating polygon lists smaller than the minimum when
  vertex_count > 0 but tile size smaller than 16 byte
- Take into account tile size when calculating polygon list size for
  !hierarchy
- Allow 0-sized tiles in a single dimension

Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Signed-off-by: Tomeu Vizoso <tomeu.vizoso@collabora.com>
2019-12-03 04:25:04 +00:00
Alyssa Rosenzweig
63cd5b8198 panfrost: Add information about T720 tiling
We've figured out most of the big pieces, and though it looks faintly
like other Midgards, it's much simpler.

Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
2019-12-03 04:25:04 +00:00
Tomeu Vizoso
6887ff4e79 panfrost: Add quirks system to cmdstream
Similarly to how it's already done in the compiler, add a way to express
differences between GPU models that need to be taken into account when
assembling the cmdstream.

Signed-off-by: Tomeu Vizoso <tomeu.vizoso@collabora.com>
2019-12-03 04:25:04 +00:00
Alyssa Rosenzweig
4c43b354c3 pan/midgard: Use lower_tex_without_implicit_lod
Just a bit of cleanup. lower_tex can do this lowering for us, which
should also eliminate some special cases (one less thing to fix if we
ever need texturing in tess/geom/etc, perhaps?)

Closes #2133

Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Reviewed-by: Tomeu Vizoso <tomeu.vizoso@collabora.com>
2019-11-22 08:38:57 -05:00
Alyssa Rosenzweig
2e14fe6490 panfrost: Add lcra.c to Android.mk
This was forgotten.

Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Reviewed-by: Tomeu Vizoso <tomeu.vizoso@collabora.com>
2019-11-22 05:07:19 +00:00
Alyssa Rosenzweig
bda2bb31b1 pan/midgard: Enable LOD lowering only on buggy chips
T720 and earlier need this workaround, so check the quirk before
lowering.

Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Reviewed-by: Tomeu Vizoso <tomeu.vizoso@collabora.com>
2019-11-22 05:07:19 +00:00
Alyssa Rosenzweig
68c2c7962a pan/midgard: Describe quirk MIDGARD_BROKEN_LOD
Corresponds to errata #10471, applies to T6xx and T720. Fixed in T760.

Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Reviewed-by: Tomeu Vizoso <tomeu.vizoso@collabora.com>
2019-11-22 05:07:19 +00:00
Alyssa Rosenzweig
d32d4acf68 pan/midgard: Add LOD bias/clamp lowering
We fetch the info with the new intrinsic and lower with ALU ops for txl
instructions, which seemingly correspond to "TEXGRD" instructions (what
we call textureLod).

Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Reviewed-by: Tomeu Vizoso <tomeu.vizoso@collabora.com>
2019-11-22 05:07:19 +00:00
Alyssa Rosenzweig
4e07e7b232 pan/midgard: Implement load_sampler_lod_paramaters_pan
We can stuff this information in as parametrized system values, like we
currently do texture size and SSBO addresses.

Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Reviewed-by: Tomeu Vizoso <tomeu.vizoso@collabora.com>
2019-11-22 05:07:19 +00:00
Alyssa Rosenzweig
046097c092 panfrost: Add the lod_bias field
Enough trial and error ... just think even *more* Midgard about where
this field might be!

Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
2019-11-21 06:05:12 +00:00
Tomeu Vizoso
36b099a7b0 panfrost: Don't print the midgard_blend_rt structs on SFBD
Signed-off-by: Tomeu Vizoso <tomeu.vizoso@collabora.com>
Reviewed-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
2019-11-20 08:04:25 +01:00
Tomeu Vizoso
697f02c2a1 panfrost: Just print tiler fields as-is for Tx20
The tiler unit in these GPUs is quite different and we haven't reverse
engineered enough of it yet to validate and pretty print it.

Signed-off-by: Tomeu Vizoso <tomeu.vizoso@collabora.com>
Reviewed-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
2019-11-20 08:00:41 +01:00
Alyssa Rosenzweig
fcf144d96a pan/midgard: Introduce quirks checks
Rather than open-coding checks on gpu_id in the compiler, let's track
quirks applying to whatever we're compiling for, to allow us to manage
the complexity of many heterogenous GPUs in the compiler.

It was discovered that a workaround used on T720 is also required on
T820 (and presumably T830), so let's fix this. This will also decrease
friction as we continue improving T720 support.

Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Reviewed-by: Tomeu Vizoso <tomeu.vizoso@collabora.com>
2019-11-20 07:41:39 +01:00
Alyssa Rosenzweig
3663340049 pan/midgard: Use shader stage in mir_op_computes_derivative
A 'normal' texture op may be emitted in a vertex shader on T720 but it
still doesn't take any derivatives.

Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
2019-11-18 08:48:54 -05:00
Alyssa Rosenzweig
bc9a7d0699 pan/midgard: Represent ld/st offset unpacked
This simplifies manipulation of the offsets dramatically, fixing some
UBO access related bugs.

Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
2019-11-17 22:19:31 -05:00
Alyssa Rosenzweig
1798f6bfc3 pan/midgard: Fix masks/alignment for 64-bit loads
These need to be handled with special care.

Oh, Midgard, you're *extra* special.

Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
2019-11-17 22:19:31 -05:00
Alyssa Rosenzweig
34a860b9e3 pan/midgard: Expose more typesize helpers
Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
2019-11-17 21:30:14 -05:00
Alyssa Rosenzweig
2236904f72 pan/midgard: Implement non-aligned UBOs
The field is more fine-grained than we had assumed.

Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
2019-11-17 21:18:45 -05:00
Alyssa Rosenzweig
ea232c7cfd pan/midgard: Use generic constant packing for 8/64-bit
Eventually, we will want to combine constants across types, but for now
let's not break the world.

Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
2019-11-15 20:08:46 +00:00
Alyssa Rosenzweig
4c182a6d11 pan/midgard: Pack 64-bit swizzles
64-bit ops have their own funky swizzles. Let's pack them, both for
native 64-bit sources as well as extended 32-bit sources.

Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
2019-11-15 20:08:46 +00:00
Alyssa Rosenzweig
ba2fb98d36 pan/midgard: Fix mir_round_bytemask_down for !32b
Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
2019-11-15 20:08:46 +00:00
Alyssa Rosenzweig
2655a300a3 pan/midgard: Implement i2i64 and u2u64
Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
2019-11-15 20:08:46 +00:00
Alyssa Rosenzweig
855eec93b1 pan/midgard: Expand 64-bit writemasks
Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
2019-11-15 20:08:46 +00:00
Alyssa Rosenzweig
095654e3c2 pan/midgard: Prioritize texture registers
On newer GPUs, this is a no-op. On older GPUs, this prevents needless
spilling since texture registers are shared with a subset of work
registers.

Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Reviewed-by: Tomeu Vizoso <tomeu.vizoso@collabora.com>
Tested-by: Andre Heider <a.heider@gmail.com>
2019-11-15 18:37:34 +00:00
Alyssa Rosenzweig
339401b53c pan/midgard: Disassemble with old pipeline always on T720
Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Reviewed-by: Tomeu Vizoso <tomeu.vizoso@collabora.com>
Tested-by: Andre Heider <a.heider@gmail.com>
2019-11-15 18:37:33 +00:00
Alyssa Rosenzweig
8344d7425b pan/midgard: Use texture, not textureLod, on early Midgard
We have to disable the fixup.

Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Reviewed-by: Tomeu Vizoso <tomeu.vizoso@collabora.com>
Tested-by: Andre Heider <a.heider@gmail.com>
2019-11-15 18:37:33 +00:00
Alyssa Rosenzweig
29f5b00e6e pan/midgard: Fix vertex texturing on early Midgard
We use a different set of texture registers, probably to save hardware.

Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Reviewed-by: Tomeu Vizoso <tomeu.vizoso@collabora.com>
Tested-by: Andre Heider <a.heider@gmail.com>
2019-11-15 18:37:33 +00:00
Alyssa Rosenzweig
3866d0776f pan/midgard: Generalize texture registers across GPUs
Early Midgard uses a different set of texture registers; let's not
hardcode.

Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Reviewed-by: Tomeu Vizoso <tomeu.vizoso@collabora.com>
Tested-by: Andre Heider <a.heider@gmail.com>
2019-11-15 18:37:33 +00:00
Alyssa Rosenzweig
ad6b2ac374 pan/midgard: Fix copypropagation for textures
total instructions in shared programs: 3562 -> 3457 (-2.95%)
instructions in affected programs: 575 -> 470 (-18.26%)
helped: 16
HURT: 0
helped stats (abs) min: 1 max: 14 x̄: 6.56 x̃: 10
helped stats (rel) min: 5.71% max: 24.56% x̄: 16.83% x̃: 18.87%
95% mean confidence interval for instructions value: -9.07 -4.06
95% mean confidence interval for instructions %-change: -19.00% -14.66%
Instructions are helped.

total bundles in shared programs: 1846 -> 1830 (-0.87%)
bundles in affected programs: 338 -> 322 (-4.73%)
helped: 16
HURT: 0
helped stats (abs) min: 1 max: 1 x̄: 1.00 x̃: 1
helped stats (rel) min: 2.50% max: 20.00% x̄: 8.85% x̃: 3.33%
95% mean confidence interval for bundles value: -1.00 -1.00
95% mean confidence interval for bundles %-change: -13.02% -4.67%
Bundles are helped.

total quadwords in shared programs: 3191 -> 3144 (-1.47%)
quadwords in affected programs: 606 -> 559 (-7.76%)
helped: 16
HURT: 0
helped stats (abs) min: 1 max: 14 x̄: 2.94 x̃: 3
helped stats (rel) min: 5.17% max: 22.22% x̄: 11.20% x̃: 5.62%
95% mean confidence interval for quadwords value: -4.58 -1.29
95% mean confidence interval for quadwords %-change: -15.16% -7.24%
Quadwords are helped.

total registers in shared programs: 312 -> 303 (-2.88%)
registers in affected programs: 27 -> 18 (-33.33%)
helped: 9
HURT: 0
helped stats (abs) min: 1 max: 1 x̄: 1.00 x̃: 1
helped stats (rel) min: 33.33% max: 33.33% x̄: 33.33% x̃: 33.33%
95% mean confidence interval for registers value: -1.00 -1.00
95% mean confidence interval for registers %-change: -33.33% -33.33%
Registers are helped.

Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
2019-11-14 02:36:21 +00:00
Alyssa Rosenzweig
f72873e6aa pan/midgard: Copypropagate vector creation
total instructions in shared programs: 3457 -> 3431 (-0.75%)
instructions in affected programs: 787 -> 761 (-3.30%)
helped: 14
HURT: 0
helped stats (abs) min: 1 max: 12 x̄: 1.86 x̃: 1
helped stats (rel) min: 1.01% max: 11.11% x̄: 9.22% x̃: 11.11%
95% mean confidence interval for instructions value: -3.55 -0.16
95% mean confidence interval for instructions %-change: -11.41% -7.03%
Instructions are helped.

total bundles in shared programs: 1830 -> 1826 (-0.22%)
bundles in affected programs: 279 -> 275 (-1.43%)
helped: 2
HURT: 0

total quadwords in shared programs: 3144 -> 3121 (-0.73%)
quadwords in affected programs: 645 -> 622 (-3.57%)
helped: 13
HURT: 0
helped stats (abs) min: 1 max: 11 x̄: 1.77 x̃: 1
helped stats (rel) min: 2.09% max: 16.67% x̄: 12.61% x̃: 14.29%
95% mean confidence interval for quadwords value: -3.45 -0.09
95% mean confidence interval for quadwords %-change: -15.43% -9.79%
Quadwords are helped.

total registers in shared programs: 303 -> 301 (-0.66%)
registers in affected programs: 14 -> 12 (-14.29%)
helped: 2
HURT: 0

Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
2019-11-14 02:36:21 +00:00
Alyssa Rosenzweig
39b5f2fa0b pan/lcra: Use Chaitin's spilling heuristic
Not much of a difference but slightly better and slightly less
arbitrary.

total instructions in shared programs: 3560 -> 3559 (-0.03%)
instructions in affected programs: 44 -> 43 (-2.27%)
helped: 1
HURT: 0

total bundles in shared programs: 1844 -> 1843 (-0.05%)
bundles in affected programs: 23 -> 22 (-4.35%)
helped: 1
HURT: 0

Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
2019-11-14 02:36:21 +00:00
Alyssa Rosenzweig
23c83f3f05 pan/midgard: Compute spill costs
Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
2019-11-14 02:36:21 +00:00
Alyssa Rosenzweig
771d23584a pan/midgard: Remove util/ra support
It's now unused, in favour of LCRA.

Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
2019-11-13 15:27:56 +00:00
Alyssa Rosenzweig
e343f2ceb9 pan/midgard: Integrate LCRA
Pretty routine, we do have a hack to force swizzle alignment for !32-bit
for until we implement !32-bit the right way.

Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
2019-11-13 15:27:56 +00:00
Alyssa Rosenzweig
66ad64d73d pan/midgard: Implement linearly-constrained register allocation
Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
2019-11-13 15:27:56 +00:00
Alyssa Rosenzweig
fd81916ee5 pan/midgard: Add blend shader selection bits for MRT
This is less complicated than previously thought. Note we have no way of
specifying the work register count for blend shaders; it must be
strictly less than the work register count of the corresponding fragment
shader (which is fine since we force the fragment shader to report a
count of 16 with a blend shader as a major hack until we get register
pressure down for blend shaders).

TODO: pandecode the flags.

Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
2019-11-13 15:27:56 +00:00
Alyssa Rosenzweig
3295edaadf pan/midgard: Pack load/store masks
While most load/store operations on 32-bit/vec4 intriniscally, some are
not and have special type-size-dependent semantics for the mask. We need
to convert into this native format.

Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Reviewed-by: Tomeu Vizoso <tomeu.vizoso@collabora.com>
2019-11-11 15:23:44 +00:00
Alyssa Rosenzweig
843874c7c3 pan/midgard: Implement nir_intrinsic_load_output_u8_as_fp16_pan
We can use the native Midgard ops for this, depending what chip we're
on.

Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Reviewed-by: Tomeu Vizoso <tomeu.vizoso@collabora.com>
2019-11-11 15:23:44 +00:00
Alyssa Rosenzweig
5885b64e42 pan/midgard: Identify ld_color_buffer_u8_as_fp16*
There are two versions of this opcode, depending what version of the ISA
you're using. I'm not sure if there's a semantic difference; I think
there might be some slight subtleties but it's too early to know at this
stage.

Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Reviewed-by: Tomeu Vizoso <tomeu.vizoso@collabora.com>
2019-11-11 15:23:44 +00:00
Alyssa Rosenzweig
5f768eda43 pan/midgard: Switch base for vertex texturing on T720
There aren't texture pipeline registers anymore; instead, space is
shared with work and ldst registers for output and input respectively.
We need to shift the base registers to represent this correctly.

Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
2019-11-08 06:45:03 +00:00
Alyssa Rosenzweig
ac14facf7a pan/midgard: Pass shader stage to disassembler
Vertex texturing behaves differently from fragment texturing on some
GPUs.

Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
2019-11-08 06:45:03 +00:00