Commit graph

15295 commits

Author SHA1 Message Date
David Heidelberg
68215332a8 build: pass licensing information in SPDX form
Acked-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Acked-by: Dylan Baker <dylan.c.baker@intel.com>
Acked-by: Eric Engestrom <eric@igalia.com>
Acked-by: Daniel Stone <daniels@collabora.com>
Signed-off-by: David Heidelberg <david@ixit.cz>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/29972>
2024-06-29 12:42:49 -07:00
Samuel Pitoiset
cc48e12431 radv: suspend user conditional rendering when DGC has task shaders
Otherwise the DGC ACE IB would be uninitialized and it would hang.

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/29954>
2024-06-28 14:35:22 +00:00
Konstantin Seurer
9ae1c5dce3 radv: Refactor radv_(dst|src)_access_flush
A few ifs should be faster and more readable than looping over every set
bit.

Reviewed-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/29051>
2024-06-28 10:41:49 +00:00
Konstantin Seurer
41619da397 radv: Handle AS access bits like shader storage access bits
Acceleration structures are accessed directly from shaders or via
PKT3_WRITE_DATA.

Reviewed-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/29051>
2024-06-28 10:41:49 +00:00
Konstantin Seurer
ca96abe1cb radv: Remove write access handling from radv_dst_access_flush
Reviewed-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/29051>
2024-06-28 10:41:49 +00:00
Konstantin Seurer
3eefd0b040 radv: Remove handling for expanded access flags
Reviewed-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/29051>
2024-06-28 10:41:49 +00:00
Konstantin Seurer
135348a3c3 radv: Remove no-op access flag handling
Reviewed-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/29051>
2024-06-28 10:41:49 +00:00
Konstantin Seurer
3acab3dfff radv: Use vk_expand_(src|dst)_access_flags2
Simplifies access flags handling since the driver doesn't have to worry
about VK_ACCESS_2_MEMORY_READ_BIT and friends.

Reviewed-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/29051>
2024-06-28 10:41:49 +00:00
Samuel Pitoiset
88864b707a radv: enable task shaders support with NV DGC
No games are using task shaders with DGC at the moment but this is
supposed to work.

This fixes test_amplification_shader_execute_indirect from vkd3d.

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/29935>
2024-06-28 06:19:56 +00:00
Samuel Pitoiset
e6aee84265 radv: fix a synchronization issue with non-preprocessed DGC with task shader
We need to make sure that the DGC ACE IB will wait for the DGC
prepare shader before the execution starts. When DGC is preprocessed
the synchronization is already correct.

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/29935>
2024-06-28 06:19:56 +00:00
Samuel Pitoiset
74713469e1 radv: disable conditional rendering with DGC and task shaders
When the DGC prepare shader is conditionally executed on the graphics
queue, the generated IBs might be uninitialized. It's fine for the
DGC GFX IB because the INDIRECT_PACKET would also be conditionally
skipped but it's not possible to do that for the DGC ACE IB
(ie. no IB2 on compute).

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/29935>
2024-06-28 06:19:56 +00:00
Samuel Pitoiset
fec2385301 radv: emit push constant for task shaders with DGC
Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/29935>
2024-06-28 06:19:56 +00:00
Samuel Pitoiset
1ffb420edd radv: adjust the base upload offset when DGC uses task shaders
The upload space is after the DGC ACE IB.

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/29935>
2024-06-28 06:19:56 +00:00
Samuel Pitoiset
f55d4f2f09 radv: reserve space for push constants in the DGC ACE IB
The upload space will be shared for both IBs when push constants need
to be allocated.

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/29935>
2024-06-28 06:19:56 +00:00
Samuel Pitoiset
8d321421c7 radv: rework emitting push constants with DGC
Using a push constant stages mask to emit them in the DGC ACE IB for
task shaders.

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/29935>
2024-06-28 06:19:56 +00:00
Samuel Pitoiset
f6150edbb3 radv: split allocating and emitting push constants with DGC
This will allow us to emit push constants for task shaders.

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/29935>
2024-06-28 06:19:56 +00:00
Samuel Pitoiset
1f7bdcfa8d radv: add a helper that determines if DGC uses task shaders
Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/29935>
2024-06-28 06:19:56 +00:00
Samuel Pitoiset
58327fd3bf radv: pre-compute the base upload offset in radv_prepare_dgc()
It will need to be adjusted if task+mesh shaders need to allocate
push constants.

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/29935>
2024-06-28 06:19:56 +00:00
Samuel Pitoiset
842f3ea133 radv: improve clarity of DGC offset computations
Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/29935>
2024-06-28 06:19:56 +00:00
Samuel Pitoiset
bc52e77397 radv: fix incorrect cache flushes before decompressing DCC on compute
Found by luck.

Cc: mesa-stable
Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/29940>
2024-06-28 05:54:20 +00:00
Samuel Pitoiset
037eaa962b radv: add support for executing the DGC ACE IB
It's disabled for now.

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/29814>
2024-06-27 10:22:50 +00:00
Samuel Pitoiset
1e0c6fab21 radv: add support for preparing the ACE IB in DGC
This is still missing push constants.

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/29814>
2024-06-27 10:22:50 +00:00
Samuel Pitoiset
723acbe1e2 radv: add a helper to pad DGC IB
Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/29814>
2024-06-27 10:22:50 +00:00
Samuel Pitoiset
0a5c6415d1 radv: refactor some DGC helpers in preparation for the ACE IB
These will be re-used for generating the ACE IB.

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/29814>
2024-06-27 10:22:49 +00:00
Samuel Pitoiset
12cc97a157 radv: prepare for DISPATCH_TASKMESH_DIRECT_ACE emission in the DGC shader
Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/29814>
2024-06-27 10:22:49 +00:00
Samuel Pitoiset
8a81a6066d radv: prepare for DISPATCH_TASKMESH_GFX emission in the DGC shader
Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/29814>
2024-06-27 10:22:49 +00:00
Samuel Pitoiset
bdbe3e5886 radv: add support for computing the DGC ACE IB size
For task shaders, RADV will need to prepare two command buffers in the
DGC prepare shader. The preprocess buffer will be splitted in two
parts, one for GFX and one for ACE.

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/29814>
2024-06-27 10:22:49 +00:00
Samuel Pitoiset
99cd8b6a54 radv: add a helper to execute a DGC IB
It will be used to execute DGC IB for task shaders too.

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/29814>
2024-06-27 10:22:49 +00:00
Georg Lehmann
7fc8ad2ddd aco/ir: remove unused vopc helpers
And rename get_swapped and get_inverse to show that they should only be used for VOPC.

Reviewed-by: Timur Kristóf <timur.kristof@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/29467>
2024-06-27 08:12:30 +00:00
Georg Lehmann
2225a32bb0 aco: remove ordered/unordered optimizations
Reviewed-by: Timur Kristóf <timur.kristof@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/29467>
2024-06-27 08:12:30 +00:00
Georg Lehmann
080e03d021 ac/nir: enable ford, funord, fneo, fequ, fltu, fgeu
Reviewed-by: Timur Kristóf <timur.kristof@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/29467>
2024-06-27 08:12:30 +00:00
Georg Lehmann
3dfc8b3bcf ac/llvm: implement ford, funord, fneo, fequ, fltu, fgeu
Reviewed-by: Timur Kristóf <timur.kristof@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/29467>
2024-06-27 08:12:30 +00:00
Georg Lehmann
c5ba17cd25 aco: implement ford, funord, fneo, fequ, fltu, fgeu
Reviewed-by: Timur Kristóf <timur.kristof@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/29467>
2024-06-27 08:12:30 +00:00
Jeremy Gebben
da1a7c04bc radv: Return hang status from radv_check_gpu_hangs()
Return VK_ERROR_DEVICE_LOST if a hang is detected. This is necessary
because the application needs to know if it should call
vkGetDeviceFaultInfoEXT().

Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/29921>
2024-06-27 06:07:53 +00:00
Alyssa Rosenzweig
dd85b50d18 treewide: use nir_break_if
Via Coccinelle patch and some manual hunk editing:

    @@
    expression b, E;
    @@

    -nir_push_if(b, E);
    -{
    -nir_jump(b, nir_jump_break);
    -}
    -nir_pop_if(b, NULL);
    +nir_break_if(b, E);

Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Reviewed-by: Daniel Schürmann <daniel@schuermann.dev>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/29877>
2024-06-26 19:07:35 +00:00
Samuel Pitoiset
fec9b56f17 radv/amdgpu: fix chaining CS with external IBs on compute queue
In a scenario where two non-concurrent cmdbufs are submitted to the
compute queue and with the second one using DGCC, the driver would have
chained the CS of the first cmdbuf to the new IB created right after
the DGC IB is executed.

Found while working on DGC task shader with vkd3d-proton.

Cc: mesa-stable
Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/29913>
2024-06-26 17:03:10 +00:00
Pierre-Eric Pelloux-Prayer
6ec95b990e ac/nir: don't use the compute blit for PIPE_FORMAT_R5G6B5_UNORM
It breaks spec@arb_pixel_buffer_object@texsubimage array pbo and
spec@arb_pixel_buffer_object@texsubimage pbo with some formats:

72,3,0: test = 140,0,8,255 ref = 148,0,8,255 (comparing 8 bits)
texsubimage failed
  target: GL_TEXTURE_1D_ARRAY
  internal format: GL_R3_G3_B2
  region: 5, 3  116 x 11
72,3,0: test = 140,0,8,255 ref = 148,0,8,255 (comparing 8 bits)
texsubimage failed
  target: GL_TEXTURE_1D_ARRAY
  internal format: GL_RGB5
  region: 33, 3  78 x 11
72,10,0: test = 140,0,41,255 ref = 148,0,41,255 (comparing 8 bits)
texsubimage failed
  target: GL_TEXTURE_1D_ARRAY
  internal format: GL_RGB5_A1
  region: 3, 10  124 x 33
72,19,4: test = 140,65,74,255 ref = 148,65,74,255 (comparing 8 bits)
texsubimage failed
  target: GL_TEXTURE_2D_ARRAY
  internal format: GL_R3_G3_B2
  region: 36, 19  81 x 18
12,36,4: test = 25,66,140,255 ref = 25,66,148,255 (comparing 8 bits)
texsubimage failed
  target: GL_TEXTURE_2D_ARRAY
  internal format: GL_RGB5
  region: 12, 9  30 x 39
72,22,2: test = 140,33,90,255 ref = 148,33,90,255 (comparing 8 bits)
texsubimage failed
  target: GL_TEXTURE_2D_ARRAY
  internal format: GL_RGB5_A1
  region: 39, 22  36 x 37

Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/29612>
2024-06-26 14:02:13 +00:00
Pierre-Eric Pelloux-Prayer
abd048124a ac/surface: reject modifiers with retile_dcc and bpe != 32
radv has a comment in radv_meta_dcc_retile.c:
   * BPE is always 4 at the moment and the rest is derived from the tilemode.
radeonsi has in si_retile_dcc:
   /* We have only 1 variant per bpp for now, so expect 32 bpp. */
   assert(tex->surface.bpe == 4);

This fixes ext_image_dma_buf_import-modifiers for radeonsi.

Cc: mesa-stable
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/29612>
2024-06-26 14:02:13 +00:00
Daniel Schürmann
c4a38c6583 aco/spill: don't remove spilled phis
They will be removed during register allocation.

Few changes due to different phi order.
Totals from 14 (0.02% of 79395) affected shaders: (GFX11)

Instrs: 315724 -> 315675 (-0.02%); split: -0.02%, +0.01%
CodeSize: 1673608 -> 1673268 (-0.02%); split: -0.03%, +0.00%
Latency: 3194243 -> 3189025 (-0.16%); split: -0.19%, +0.03%
InvThroughput: 638369 -> 637323 (-0.16%); split: -0.19%, +0.03%
VClause: 5716 -> 5714 (-0.03%)
Copies: 37786 -> 37748 (-0.10%); split: -0.13%, +0.03%
Branches: 10469 -> 10454 (-0.14%); split: -0.16%, +0.02%
VALU: 182498 -> 182454 (-0.02%); split: -0.03%, +0.00%
SALU: 36038 -> 36046 (+0.02%); split: -0.01%, +0.04%
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/29804>
2024-06-26 09:42:34 +00:00
Daniel Schürmann
634051f913 aco/live_var_analysis: ignore dead phis
Since we don't emit code for dead phis, we also don't
have to keep their operands around.

Totals from 44 (0.06% of 79395) affected shaders: (GFX11)

MaxWaves: 648 -> 650 (+0.31%)
Instrs: 449898 -> 449120 (-0.17%); split: -0.18%, +0.00%
CodeSize: 2395000 -> 2389300 (-0.24%); split: -0.24%, +0.00%
VGPRs: 5504 -> 5468 (-0.65%)
Latency: 9005058 -> 9000966 (-0.05%); split: -0.07%, +0.03%
InvThroughput: 2154567 -> 2139095 (-0.72%); split: -0.77%, +0.06%
VClause: 8362 -> 8354 (-0.10%)
SClause: 9135 -> 9134 (-0.01%)
Copies: 60678 -> 60118 (-0.92%); split: -0.93%, +0.01%
Branches: 14379 -> 14385 (+0.04%)
PreSGPRs: 3877 -> 3863 (-0.36%)
PreVGPRs: 6318 -> 6286 (-0.51%)
VALU: 266975 -> 266301 (-0.25%); split: -0.25%, +0.00%
SALU: 52741 -> 52667 (-0.14%); split: -0.15%, +0.01%
VMEM: 16140 -> 16132 (-0.05%)
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/29804>
2024-06-26 09:42:34 +00:00
Daniel Schürmann
708e1a73f5 aco/live_var_analysis: slightly refactor handling of additional register demand for Operand copies
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/29804>
2024-06-26 09:42:34 +00:00
Daniel Schürmann
5cfa5b784b aco: remove get_demand_before()
The register demand before executing an instruction is now included
in the instruction's register demand and this function is unused.

Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/29804>
2024-06-26 09:42:34 +00:00
Daniel Schürmann
09f1c40f2e aco: track and use the live-in register demand per basic block
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/29804>
2024-06-26 09:42:34 +00:00
Daniel Schürmann
001c8caae0 aco: calculate register demand per instruction as maximum necessary to execute the instruction
Previously, the register demand per instruction was calculated as the number of
live variables in the register file after executing an instruction plus additional
temporary registers, necessary during the execution of the instruction.
With this change, now it also includes all variables which are live right before
executing an instruction, i.e. killed Operands.

Care has been taken so that the invariant

register_demand[idx] = register_demand[idx - 1] - get_temp_registers(prev_instr)
                        + get_live_changes(instr) + get_temp_registers(instr)

still holds.

Slight changes in scheduling:

Totals from 316 (0.40% of 79395) affected shaders: (GFX11)

Instrs: 301329 -> 300777 (-0.18%); split: -0.31%, +0.12%
CodeSize: 1577976 -> 1576204 (-0.11%); split: -0.21%, +0.10%
SpillSGPRs: 448 -> 447 (-0.22%)
Latency: 1736349 -> 1726182 (-0.59%); split: -2.01%, +1.42%
InvThroughput: 243894 -> 243883 (-0.00%); split: -0.03%, +0.03%
VClause: 6134 -> 6280 (+2.38%); split: -1.04%, +3.42%
SClause: 6142 -> 6137 (-0.08%); split: -0.13%, +0.05%
Copies: 14037 -> 14032 (-0.04%); split: -0.56%, +0.52%
Branches: 3284 -> 3283 (-0.03%)
VALU: 182750 -> 182718 (-0.02%); split: -0.04%, +0.03%
SALU: 18522 -> 18538 (+0.09%)
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/29804>
2024-06-26 09:42:33 +00:00
Daniel Schürmann
4c2f231cc0 aco/spill: Unconditionally add 2 SGPRs to live-in demand
Due to undefined Operands, it might not be enough to check the
predecessors' register demand.

Cc: mesa-stable
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/29804>
2024-06-26 09:42:33 +00:00
Daniel Schürmann
26c58ca9de aco/scheduler: fix register_demand validation debug code
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/29804>
2024-06-26 09:42:33 +00:00
Rhys Perry
e3ffc244f5 aco: skip continue_or_break LCSSA phis when not needed
Fixes:
//exec is empty here
loop {
   %1:s[16-17] = ...
   if () {
      break
   }
   %2:s[16-17] = ...
   continue_or_break
}
%3 = phi %1, undef
//because of the undef, %2 can use s[16-17] and overwrite the address
load(%3:s[16-17])

No fossil-db changes.

Signed-off-by: Rhys Perry <pendingchaos02@gmail.com>
Reviewed-by: Daniel Schürmann <daniel@schuermann.dev>
Fixes: bbe4652430 ("aco: create lcssa phis for continue_or_break loops when necessary")
Closes: https://gitlab.freedesktop.org/mesa/mesa/-/issues/11333
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/29838>
2024-06-26 09:10:54 +00:00
Marek Olšák
932e8c7768 ac/nir/cdna: don't use image_descriptor intrinsics if the src is a descriptor
Fixes: 30af861bff - radeonsi: restructure (rewrite) the compute blit shader

Acked-by: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/29852>
2024-06-25 10:09:08 +00:00
Marek Olšák
8023e89d11 ac/nir/cdna: ignore image_descriptor intrinsics
Fixes: 30af861bff - radeonsi: restructure (rewrite) the compute blit shader

Acked-by: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/29852>
2024-06-25 10:09:08 +00:00
Marek Olšák
fec0a9fcdf ac/nir/cdna: allow 16-bit coordinates
This can occur with the new compute blit shader.

Fixes: 30af861bff - radeonsi: restructure (rewrite) the compute blit shader

Acked-by: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/29852>
2024-06-25 10:09:07 +00:00