[Mesa-dev] [PATCH 21/33] anv/pipeline: Roll compute_urb_partition into emit_urb_setup
Jason Ekstrand
jason at jlekstrand.net
Sat Sep 3 15:33:48 UTC 2016
On Sat, Sep 3, 2016 at 12:50 AM, Pohjolainen, Topi <
topi.pohjolainen at gmail.com> wrote:
> On Wed, Aug 31, 2016 at 02:22:40PM -0700, Jason Ekstrand wrote:
> > ---
> > src/intel/vulkan/anv_pipeline.c | 142
> ---------------------------------
> > src/intel/vulkan/anv_private.h | 3 -
> > src/intel/vulkan/genX_pipeline_util.h | 146
> ++++++++++++++++++++++++++++++++--
> > 3 files changed, 138 insertions(+), 153 deletions(-)
> >
> > diff --git a/src/intel/vulkan/anv_pipeline.c b/src/intel/vulkan/anv_
> pipeline.c
> > index 35acc4a..750f2fa 100644
> > --- a/src/intel/vulkan/anv_pipeline.c
> > +++ b/src/intel/vulkan/anv_pipeline.c
> > @@ -803,147 +803,6 @@ anv_pipeline_compile_cs(struct anv_pipeline
> *pipeline,
> > return VK_SUCCESS;
> > }
> >
> > -void
> > -anv_compute_urb_partition(struct anv_pipeline *pipeline)
>
> There was no separate declaration for this function that would need to be
> removed?
>
Good catch! Fixed locally.
> > -{
> > - const struct gen_device_info *devinfo = &pipeline->device->info;
> > -
> > - bool vs_present = pipeline->active_stages &
> VK_SHADER_STAGE_VERTEX_BIT;
> > - unsigned vs_size = vs_present ?
> > - get_vs_prog_data(pipeline)->base.urb_entry_size : 1;
> > - unsigned vs_entry_size_bytes = vs_size * 64;
> > - bool gs_present = pipeline->active_stages &
> VK_SHADER_STAGE_GEOMETRY_BIT;
> > - unsigned gs_size = gs_present ?
> > - get_gs_prog_data(pipeline)->base.urb_entry_size : 1;
> > - unsigned gs_entry_size_bytes = gs_size * 64;
> > -
> > - /* From p35 of the Ivy Bridge PRM (section 1.7.1: 3DSTATE_URB_GS):
> > - *
> > - * VS Number of URB Entries must be divisible by 8 if the VS URB
> Entry
> > - * Allocation Size is less than 9 512-bit URB entries.
> > - *
> > - * Similar text exists for GS.
> > - */
> > - unsigned vs_granularity = (vs_size < 9) ? 8 : 1;
> > - unsigned gs_granularity = (gs_size < 9) ? 8 : 1;
> > -
> > - /* URB allocations must be done in 8k chunks. */
> > - unsigned chunk_size_bytes = 8192;
> > -
> > - /* Determine the size of the URB in chunks. */
> > - unsigned urb_chunks = pipeline->urb.total_size * 1024 /
> chunk_size_bytes;
> > -
> > - /* Reserve space for push constants */
> > - unsigned push_constant_kb;
> > - if (pipeline->device->info.gen >= 8)
> > - push_constant_kb = 32;
> > - else if (pipeline->device->info.is_haswell)
> > - push_constant_kb = pipeline->device->info.gt == 3 ? 32 : 16;
> > - else
> > - push_constant_kb = 16;
> > -
> > - unsigned push_constant_bytes = push_constant_kb * 1024;
> > - unsigned push_constant_chunks =
> > - push_constant_bytes / chunk_size_bytes;
> > -
> > - /* Initially, assign each stage the minimum amount of URB space it
> needs,
> > - * and make a note of how much additional space it "wants" (the
> amount of
> > - * additional space it could actually make use of).
> > - */
> > -
> > - /* VS has a lower limit on the number of URB entries */
> > - unsigned vs_chunks =
> > - ALIGN(devinfo->urb.min_vs_entries * vs_entry_size_bytes,
> > - chunk_size_bytes) / chunk_size_bytes;
> > - unsigned vs_wants =
> > - ALIGN(devinfo->urb.max_vs_entries * vs_entry_size_bytes,
> > - chunk_size_bytes) / chunk_size_bytes - vs_chunks;
> > -
> > - unsigned gs_chunks = 0;
> > - unsigned gs_wants = 0;
> > - if (gs_present) {
> > - /* There are two constraints on the minimum amount of URB space
> we can
> > - * allocate:
> > - *
> > - * (1) We need room for at least 2 URB entries, since we always
> operate
> > - * the GS in DUAL_OBJECT mode.
> > - *
> > - * (2) We can't allocate less than nr_gs_entries_granularity.
> > - */
> > - gs_chunks = ALIGN(MAX2(gs_granularity, 2) * gs_entry_size_bytes,
> > - chunk_size_bytes) / chunk_size_bytes;
> > - gs_wants =
> > - ALIGN(devinfo->urb.max_gs_entries * gs_entry_size_bytes,
> > - chunk_size_bytes) / chunk_size_bytes - gs_chunks;
> > - }
> > -
> > - /* There should always be enough URB space to satisfy the minimum
> > - * requirements of each stage.
> > - */
> > - unsigned total_needs = push_constant_chunks + vs_chunks + gs_chunks;
> > - assert(total_needs <= urb_chunks);
> > -
> > - /* Mete out remaining space (if any) in proportion to "wants". */
> > - unsigned total_wants = vs_wants + gs_wants;
> > - unsigned remaining_space = urb_chunks - total_needs;
> > - if (remaining_space > total_wants)
> > - remaining_space = total_wants;
> > - if (remaining_space > 0) {
> > - unsigned vs_additional = (unsigned)
> > - round(vs_wants * (((double) remaining_space) / total_wants));
> > - vs_chunks += vs_additional;
> > - remaining_space -= vs_additional;
> > - gs_chunks += remaining_space;
> > - }
> > -
> > - /* Sanity check that we haven't over-allocated. */
> > - assert(push_constant_chunks + vs_chunks + gs_chunks <= urb_chunks);
> > -
> > - /* Finally, compute the number of entries that can fit in the space
> > - * allocated to each stage.
> > - */
> > - unsigned nr_vs_entries = vs_chunks * chunk_size_bytes /
> vs_entry_size_bytes;
> > - unsigned nr_gs_entries = gs_chunks * chunk_size_bytes /
> gs_entry_size_bytes;
> > -
> > - /* Since we rounded up when computing *_wants, this may be slightly
> more
> > - * than the maximum allowed amount, so correct for that.
> > - */
> > - nr_vs_entries = MIN2(nr_vs_entries, devinfo->urb.max_vs_entries);
> > - nr_gs_entries = MIN2(nr_gs_entries, devinfo->urb.max_gs_entries);
> > -
> > - /* Ensure that we program a multiple of the granularity. */
> > - nr_vs_entries = ROUND_DOWN_TO(nr_vs_entries, vs_granularity);
> > - nr_gs_entries = ROUND_DOWN_TO(nr_gs_entries, gs_granularity);
> > -
> > - /* Finally, sanity check to make sure we have at least the minimum
> number
> > - * of entries needed for each stage.
> > - */
> > - assert(nr_vs_entries >= devinfo->urb.min_vs_entries);
> > - if (gs_present)
> > - assert(nr_gs_entries >= 2);
> > -
> > - /* Lay out the URB in the following order:
> > - * - push constants
> > - * - VS
> > - * - GS
> > - */
> > - pipeline->urb.start[MESA_SHADER_VERTEX] = push_constant_chunks;
> > - pipeline->urb.size[MESA_SHADER_VERTEX] = vs_size;
> > - pipeline->urb.entries[MESA_SHADER_VERTEX] = nr_vs_entries;
> > -
> > - pipeline->urb.start[MESA_SHADER_GEOMETRY] = push_constant_chunks +
> vs_chunks;
> > - pipeline->urb.size[MESA_SHADER_GEOMETRY] = gs_size;
> > - pipeline->urb.entries[MESA_SHADER_GEOMETRY] = nr_gs_entries;
> > -
> > - pipeline->urb.start[MESA_SHADER_TESS_CTRL] = push_constant_chunks;
> > - pipeline->urb.size[MESA_SHADER_TESS_CTRL] = 1;
> > - pipeline->urb.entries[MESA_SHADER_TESS_CTRL] = 0;
> > -
> > - pipeline->urb.start[MESA_SHADER_TESS_EVAL] = push_constant_chunks;
> > - pipeline->urb.size[MESA_SHADER_TESS_EVAL] = 1;
> > - pipeline->urb.entries[MESA_SHADER_TESS_EVAL] = 0;
> > -}
> > -
> > /**
> > * Copy pipeline state not marked as dynamic.
> > * Dynamic state is pipeline state which hasn't been provided at
> pipeline
> > @@ -1242,7 +1101,6 @@ anv_pipeline_init(struct anv_pipeline *pipeline,
> > }
> >
> > anv_pipeline_setup_l3_config(pipeline, false);
> > - anv_compute_urb_partition(pipeline);
> >
> > const VkPipelineVertexInputStateCreateInfo *vi_info =
> > pCreateInfo->pVertexInputState;
> > diff --git a/src/intel/vulkan/anv_private.h b/src/intel/vulkan/anv_
> private.h
> > index f32806c..805b3aa 100644
> > --- a/src/intel/vulkan/anv_private.h
> > +++ b/src/intel/vulkan/anv_private.h
> > @@ -1521,9 +1521,6 @@ struct anv_pipeline {
> > struct anv_shader_bin *
> shaders[MESA_SHADER_STAGES];
> >
> > struct {
> > - uint32_t
> start[MESA_SHADER_GEOMETRY + 1];
> > - uint32_t
> size[MESA_SHADER_GEOMETRY + 1];
> > - uint32_t
> entries[MESA_SHADER_GEOMETRY + 1];
> > const struct gen_l3_config * l3_config;
> > uint32_t total_size;
> > } urb;
> > diff --git a/src/intel/vulkan/genX_pipeline_util.h
> b/src/intel/vulkan/genX_pipeline_util.h
> > index 6518fae..b23a421 100644
> > --- a/src/intel/vulkan/genX_pipeline_util.h
> > +++ b/src/intel/vulkan/genX_pipeline_util.h
> > @@ -190,9 +190,123 @@ emit_vertex_input(struct anv_pipeline *pipeline,
> > static inline void
> > emit_urb_setup(struct anv_pipeline *pipeline)
> > {
> > -#if GEN_GEN == 7 && !GEN_IS_HASWELL
> > struct anv_device *device = pipeline->device;
> >
> > + bool vs_present = pipeline->active_stages &
> VK_SHADER_STAGE_VERTEX_BIT;
> > + unsigned vs_size = vs_present ?
> > + get_vs_prog_data(pipeline)->base.urb_entry_size : 1;
> > + unsigned vs_entry_size_bytes = vs_size * 64;
> > + bool gs_present = pipeline->active_stages &
> VK_SHADER_STAGE_GEOMETRY_BIT;
> > + unsigned gs_size = gs_present ?
> > + get_gs_prog_data(pipeline)->base.urb_entry_size : 1;
> > + unsigned gs_entry_size_bytes = gs_size * 64;
> > +
> > + /* From p35 of the Ivy Bridge PRM (section 1.7.1: 3DSTATE_URB_GS):
> > + *
> > + * VS Number of URB Entries must be divisible by 8 if the VS URB
> Entry
> > + * Allocation Size is less than 9 512-bit URB entries.
> > + *
> > + * Similar text exists for GS.
> > + */
> > + unsigned vs_granularity = (vs_size < 9) ? 8 : 1;
> > + unsigned gs_granularity = (gs_size < 9) ? 8 : 1;
> > +
> > + /* URB allocations must be done in 8k chunks. */
> > + unsigned chunk_size_bytes = 8192;
> > +
> > + /* Determine the size of the URB in chunks. */
> > + unsigned urb_chunks = pipeline->urb.total_size * 1024 /
> chunk_size_bytes;
> > +
> > + /* Reserve space for push constants */
> > + unsigned push_constant_kb;
> > + if (pipeline->device->info.gen >= 8)
> > + push_constant_kb = 32;
> > + else if (pipeline->device->info.is_haswell)
> > + push_constant_kb = pipeline->device->info.gt == 3 ? 32 : 16;
> > + else
> > + push_constant_kb = 16;
> > +
> > + unsigned push_constant_bytes = push_constant_kb * 1024;
> > + unsigned push_constant_chunks =
> > + push_constant_bytes / chunk_size_bytes;
> > +
> > + /* Initially, assign each stage the minimum amount of URB space it
> needs,
> > + * and make a note of how much additional space it "wants" (the
> amount of
> > + * additional space it could actually make use of).
> > + */
> > +
> > + /* VS has a lower limit on the number of URB entries */
> > + unsigned vs_chunks =
> > + ALIGN(device->info.urb.min_vs_entries * vs_entry_size_bytes,
> > + chunk_size_bytes) / chunk_size_bytes;
> > + unsigned vs_wants =
> > + ALIGN(device->info.urb.max_vs_entries * vs_entry_size_bytes,
> > + chunk_size_bytes) / chunk_size_bytes - vs_chunks;
> > +
> > + unsigned gs_chunks = 0;
> > + unsigned gs_wants = 0;
> > + if (gs_present) {
> > + /* There are two constraints on the minimum amount of URB space
> we can
> > + * allocate:
> > + *
> > + * (1) We need room for at least 2 URB entries, since we always
> operate
> > + * the GS in DUAL_OBJECT mode.
> > + *
> > + * (2) We can't allocate less than nr_gs_entries_granularity.
> > + */
> > + gs_chunks = ALIGN(MAX2(gs_granularity, 2) * gs_entry_size_bytes,
> > + chunk_size_bytes) / chunk_size_bytes;
> > + gs_wants =
> > + ALIGN(device->info.urb.max_gs_entries * gs_entry_size_bytes,
> > + chunk_size_bytes) / chunk_size_bytes - gs_chunks;
> > + }
> > +
> > + /* There should always be enough URB space to satisfy the minimum
> > + * requirements of each stage.
> > + */
> > + unsigned total_needs = push_constant_chunks + vs_chunks + gs_chunks;
> > + assert(total_needs <= urb_chunks);
> > +
> > + /* Mete out remaining space (if any) in proportion to "wants". */
> > + unsigned total_wants = vs_wants + gs_wants;
> > + unsigned remaining_space = urb_chunks - total_needs;
> > + if (remaining_space > total_wants)
> > + remaining_space = total_wants;
> > + if (remaining_space > 0) {
> > + unsigned vs_additional = (unsigned)
> > + round(vs_wants * (((double) remaining_space) / total_wants));
> > + vs_chunks += vs_additional;
> > + remaining_space -= vs_additional;
> > + gs_chunks += remaining_space;
> > + }
> > +
> > + /* Sanity check that we haven't over-allocated. */
> > + assert(push_constant_chunks + vs_chunks + gs_chunks <= urb_chunks);
> > +
> > + /* Finally, compute the number of entries that can fit in the space
> > + * allocated to each stage.
> > + */
> > + unsigned nr_vs_entries = vs_chunks * chunk_size_bytes /
> vs_entry_size_bytes;
> > + unsigned nr_gs_entries = gs_chunks * chunk_size_bytes /
> gs_entry_size_bytes;
> > +
> > + /* Since we rounded up when computing *_wants, this may be slightly
> more
> > + * than the maximum allowed amount, so correct for that.
> > + */
> > + nr_vs_entries = MIN2(nr_vs_entries, device->info.urb.max_vs_
> entries);
> > + nr_gs_entries = MIN2(nr_gs_entries, device->info.urb.max_gs_
> entries);
> > +
> > + /* Ensure that we program a multiple of the granularity. */
> > + nr_vs_entries = ROUND_DOWN_TO(nr_vs_entries, vs_granularity);
> > + nr_gs_entries = ROUND_DOWN_TO(nr_gs_entries, gs_granularity);
> > +
> > + /* Finally, sanity check to make sure we have at least the minimum
> number
> > + * of entries needed for each stage.
> > + */
> > + assert(nr_vs_entries >= device->info.urb.min_vs_entries);
> > + if (gs_present)
> > + assert(nr_gs_entries >= 2);
> > +
> > +#if GEN_GEN == 7 && !GEN_IS_HASWELL
> > /* From the IVB PRM Vol. 2, Part 1, Section 3.2.1:
> > *
> > * "A PIPE_CONTROL with Post-Sync Operation set to 1h and a depth
> stall
> > @@ -208,13 +322,29 @@ emit_urb_setup(struct anv_pipeline *pipeline)
> > }
> > #endif
> >
> > - for (int i = MESA_SHADER_VERTEX; i <= MESA_SHADER_GEOMETRY; i++) {
> > - anv_batch_emit(&pipeline->batch, GENX(3DSTATE_URB_VS), urb) {
> > - urb._3DCommandSubOpcode = 48 + i;
> > - urb.VSURBStartingAddress = pipeline->urb.start[i];
> > - urb.VSURBEntryAllocationSize = pipeline->urb.size[i] - 1;
> > - urb.VSNumberofURBEntries = pipeline->urb.entries[i];
> > - }
> > + /* Lay out the URB in the following order:
> > + * - push constants
> > + * - VS
> > + * - GS
> > + */
> > + anv_batch_emit(&pipeline->batch, GENX(3DSTATE_URB_VS), urb) {
> > + urb.VSURBStartingAddress = push_constant_chunks;
> > + urb.VSURBEntryAllocationSize = vs_size - 1;
> > + urb.VSNumberofURBEntries = nr_vs_entries;
> > + }
> > +
> > + anv_batch_emit(&pipeline->batch, GENX(3DSTATE_URB_HS), urb) {
> > + urb.HSURBStartingAddress = push_constant_chunks;
> > + }
> > +
> > + anv_batch_emit(&pipeline->batch, GENX(3DSTATE_URB_DS), urb) {
> > + urb.DSURBStartingAddress = push_constant_chunks;
> > + }
> > +
> > + anv_batch_emit(&pipeline->batch, GENX(3DSTATE_URB_GS), urb) {
> > + urb.GSURBStartingAddress = push_constant_chunks + vs_chunks;
> > + urb.GSURBEntryAllocationSize = gs_size - 1;
> > + urb.GSNumberofURBEntries = nr_gs_entries;
> > }
> > }
> >
> > --
> > 2.5.0.400.gff86faf
> >
> > _______________________________________________
> > mesa-dev mailing list
> > mesa-dev at lists.freedesktop.org
> > https://lists.freedesktop.org/mailman/listinfo/mesa-dev
>
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