[Mesa-dev] [PATCH 16/28] blorp: Add initial state setup support for SIMD8 dispatch
Jason Ekstrand
jason at jlekstrand.net
Wed May 11 17:57:09 UTC 2016
On Wed, May 11, 2016 at 12:25 AM, Pohjolainen, Topi <
topi.pohjolainen at intel.com> wrote:
> On Tue, May 10, 2016 at 04:16:36PM -0700, Jason Ekstrand wrote:
> > ---
> > src/mesa/drivers/dri/i965/brw_blorp.c | 6 +++++-
> > src/mesa/drivers/dri/i965/brw_blorp.h | 8 +++++++-
> > src/mesa/drivers/dri/i965/brw_blorp_blit.cpp | 2 +-
> > src/mesa/drivers/dri/i965/brw_blorp_clear.cpp | 4 ++--
> > src/mesa/drivers/dri/i965/gen6_blorp.c | 23
> ++++++++++++++++-------
> > src/mesa/drivers/dri/i965/gen7_blorp.c | 27
> +++++++++++++++++++++------
> > src/mesa/drivers/dri/i965/gen8_blorp.c | 23
> +++++++++++++++--------
> > 7 files changed, 67 insertions(+), 26 deletions(-)
> >
> > diff --git a/src/mesa/drivers/dri/i965/brw_blorp.c
> b/src/mesa/drivers/dri/i965/brw_blorp.c
> > index 1379804..6c3b83a 100644
> > --- a/src/mesa/drivers/dri/i965/brw_blorp.c
> > +++ b/src/mesa/drivers/dri/i965/brw_blorp.c
> > @@ -137,7 +137,11 @@ brw_blorp_compute_tile_offsets(const struct
> brw_blorp_surface_info *info,
> > void
> > brw_blorp_prog_data_init(struct brw_blorp_prog_data *prog_data)
> > {
> > - prog_data->first_curbe_grf = 0;
> > + prog_data->dispatch_8 = false;
> > + prog_data->dispatch_16 = true;
> > + prog_data->first_curbe_grf_0 = 0;
> > + prog_data->first_curbe_grf_2 = 0;
> > + prog_data->ksp_offset_2 = 0;
> > prog_data->persample_msaa_dispatch = false;
> >
> > prog_data->nr_params = BRW_BLORP_NUM_PUSH_CONSTANT_DWORDS;
> > diff --git a/src/mesa/drivers/dri/i965/brw_blorp.h
> b/src/mesa/drivers/dri/i965/brw_blorp.h
> > index c2f33a1..b38b689 100644
> > --- a/src/mesa/drivers/dri/i965/brw_blorp.h
> > +++ b/src/mesa/drivers/dri/i965/brw_blorp.h
> > @@ -208,7 +208,13 @@ static const unsigned int
> BRW_BLORP_NUM_PUSH_CONST_REGS =
> >
> > struct brw_blorp_prog_data
> > {
> > - unsigned int first_curbe_grf;
> > + bool dispatch_8;
> > + bool dispatch_16;
> > +
> > + uint8_t first_curbe_grf_0;
> > + uint8_t first_curbe_grf_2;
> > +
> > + uint32_t ksp_offset_2;
> >
> > /**
> > * True if the WM program should be run in MSDISPMODE_PERSAMPLE with
> more
> > diff --git a/src/mesa/drivers/dri/i965/brw_blorp_blit.cpp
> b/src/mesa/drivers/dri/i965/brw_blorp_blit.cpp
> > index ed43184..7067c06 100644
> > --- a/src/mesa/drivers/dri/i965/brw_blorp_blit.cpp
> > +++ b/src/mesa/drivers/dri/i965/brw_blorp_blit.cpp
> > @@ -778,7 +778,7 @@ brw_blorp_blit_program::alloc_regs()
> > int reg = 0;
> > this->R0 = retype(brw_vec8_grf(reg++, 0), BRW_REGISTER_TYPE_UW);
> > this->R1 = retype(brw_vec8_grf(reg++, 0), BRW_REGISTER_TYPE_UW);
> > - prog_data.first_curbe_grf = reg;
> > + prog_data.first_curbe_grf_0 = reg;
> > alloc_push_const_regs(reg);
> > reg += BRW_BLORP_NUM_PUSH_CONST_REGS;
> > for (unsigned i = 0; i < ARRAY_SIZE(texture_data); ++i) {
> > diff --git a/src/mesa/drivers/dri/i965/brw_blorp_clear.cpp
> b/src/mesa/drivers/dri/i965/brw_blorp_clear.cpp
> > index 5ed46e1..c298889 100644
> > --- a/src/mesa/drivers/dri/i965/brw_blorp_clear.cpp
> > +++ b/src/mesa/drivers/dri/i965/brw_blorp_clear.cpp
> > @@ -86,7 +86,7 @@
> brw_blorp_const_color_program::brw_blorp_const_color_program(
> > clear_rgba(),
> > base_mrf(0)
> > {
> > - prog_data.first_curbe_grf = 0;
> > + prog_data.first_curbe_grf_0 = 0;
> > prog_data.persample_msaa_dispatch = false;
> > brw_init_codegen(brw->intelScreen->devinfo, &func, mem_ctx);
> > }
> > @@ -145,7 +145,7 @@ brw_blorp_const_color_program::alloc_regs()
> > this->R0 = retype(brw_vec8_grf(reg++, 0), BRW_REGISTER_TYPE_UW);
> > this->R1 = retype(brw_vec8_grf(reg++, 0), BRW_REGISTER_TYPE_UW);
> >
> > - prog_data.first_curbe_grf = reg;
> > + prog_data.first_curbe_grf_0 = reg;
> > clear_rgba = retype(brw_vec4_grf(reg++, 0), BRW_REGISTER_TYPE_F);
> > reg += BRW_BLORP_NUM_PUSH_CONST_REGS;
> >
> > diff --git a/src/mesa/drivers/dri/i965/gen6_blorp.c
> b/src/mesa/drivers/dri/i965/gen6_blorp.c
> > index 950e2b9..32049eb 100644
> > --- a/src/mesa/drivers/dri/i965/gen6_blorp.c
> > +++ b/src/mesa/drivers/dri/i965/gen6_blorp.c
> > @@ -619,7 +619,7 @@ gen6_blorp_emit_wm_config(struct brw_context *brw,
> > const struct brw_blorp_params *params)
> > {
> > const struct brw_blorp_prog_data *prog_data = params->wm_prog_data;
> > - uint32_t dw2, dw4, dw5, dw6;
> > + uint32_t dw2, dw4, dw5, dw6, ksp0, ksp2;
> >
> > /* Even when thread dispatch is disabled, max threads (dw5.25:31)
> must be
> > * nonzero to prevent the GPU from hanging. While the documentation
> doesn't
> > @@ -630,7 +630,7 @@ gen6_blorp_emit_wm_config(struct brw_context *brw,
> > * configure the WM state whether or not there is a WM program.
> > */
> >
> > - dw2 = dw4 = dw5 = dw6 = 0;
> > + dw2 = dw4 = dw5 = dw6 = ksp0 = ksp2 = 0;
> > switch (params->hiz_op) {
> > case GEN6_HIZ_OP_DEPTH_CLEAR:
> > dw4 |= GEN6_WM_DEPTH_CLEAR;
> > @@ -652,9 +652,18 @@ gen6_blorp_emit_wm_config(struct brw_context *brw,
> > dw6 |= 0 << GEN6_WM_BARYCENTRIC_INTERPOLATION_MODE_SHIFT; /* No
> interp */
> > dw6 |= 0 << GEN6_WM_NUM_SF_OUTPUTS_SHIFT; /* No inputs from SF */
> > if (params->wm_prog_data) {
> > - dw4 |= prog_data->first_curbe_grf <<
> GEN6_WM_DISPATCH_START_GRF_SHIFT_0;
> > - dw5 |= GEN6_WM_16_DISPATCH_ENABLE;
> > dw5 |= GEN6_WM_DISPATCH_ENABLE; /* We are rendering */
> > +
> > + dw4 |= prog_data->first_curbe_grf_0 <<
> GEN6_WM_DISPATCH_START_GRF_SHIFT_0;
> > + dw4 |= prog_data->first_curbe_grf_2 <<
> GEN6_WM_DISPATCH_START_GRF_SHIFT_2;
> > +
> > + ksp0 = params->wm_prog_kernel;
> > + ksp2 = params->wm_prog_kernel +
> params->wm_prog_data->ksp_offset_2;
> > +
> > + if (params->wm_prog_data->dispatch_8)
> > + dw5 |= GEN6_WM_8_DISPATCH_ENABLE;
> > + if (params->wm_prog_data->dispatch_16)
> > + dw5 |= GEN6_WM_16_DISPATCH_ENABLE;
> > }
> >
> > if (params->src.mt) {
> > @@ -675,14 +684,14 @@ gen6_blorp_emit_wm_config(struct brw_context *brw,
> >
> > BEGIN_BATCH(9);
> > OUT_BATCH(_3DSTATE_WM << 16 | (9 - 2));
> > - OUT_BATCH(params->wm_prog_kernel);
> > + OUT_BATCH(ksp0);
> > OUT_BATCH(dw2);
> > OUT_BATCH(0); /* No scratch needed */
> > OUT_BATCH(dw4);
> > OUT_BATCH(dw5);
> > OUT_BATCH(dw6);
> > - OUT_BATCH(0); /* No other programs */
> > - OUT_BATCH(0); /* No other programs */
> > + OUT_BATCH(0); /* kernel 1 pointer */
> > + OUT_BATCH(ksp2);
> > ADVANCE_BATCH();
> > }
> >
> > diff --git a/src/mesa/drivers/dri/i965/gen7_blorp.c
> b/src/mesa/drivers/dri/i965/gen7_blorp.c
> > index e2e6072..9a881a2 100644
> > --- a/src/mesa/drivers/dri/i965/gen7_blorp.c
> > +++ b/src/mesa/drivers/dri/i965/gen7_blorp.c
> > @@ -526,11 +526,11 @@ gen7_blorp_emit_ps_config(struct brw_context *brw,
> > const struct brw_blorp_params *params)
> > {
> > const struct brw_blorp_prog_data *prog_data = params->wm_prog_data;
> > - uint32_t dw2, dw4, dw5;
> > + uint32_t dw2, dw4, dw5, ksp0, ksp2;
> > const int max_threads_shift = brw->is_haswell ?
> > HSW_PS_MAX_THREADS_SHIFT : IVB_PS_MAX_THREADS_SHIFT;
> >
> > - dw2 = dw4 = dw5 = 0;
> > + dw2 = dw4 = dw5 = ksp0 = ksp2 = 0;
> > dw4 |= (brw->max_wm_threads - 1) << max_threads_shift;
> >
> > /* If there's a WM program, we need to do 16-pixel dispatch since
> that's
>
> Original has:
>
> /* If there's a WM program, we need to do 16-pixel dispatch since
> that's
> * what the program is compiled for. If there isn't, then it
> shouldn't
> * matter because no program is actually being run. However, the
> hardware
> * gets angry if we don't enable at least one dispatch mode, so just
> enable
> * 16-pixel dispatch unconditionally.
> */
> dw4 |= GEN7_PS_16_DISPATCH_ENABLE;
>
> We need to remove this also, right?
>
Thanks! I meant to but it didn't make it into the patch.
> > @@ -545,7 +545,22 @@ gen7_blorp_emit_ps_config(struct brw_context *brw,
> > dw4 |= SET_FIELD(1, HSW_PS_SAMPLE_MASK); /* 1 sample for now */
> > if (params->wm_prog_data) {
> > dw4 |= GEN7_PS_PUSH_CONSTANT_ENABLE;
> > - dw5 |= prog_data->first_curbe_grf <<
> GEN7_PS_DISPATCH_START_GRF_SHIFT_0;
> > +
> > + dw5 |= prog_data->first_curbe_grf_0 <<
> GEN7_PS_DISPATCH_START_GRF_SHIFT_0;
> > + dw5 |= prog_data->first_curbe_grf_2 <<
> GEN7_PS_DISPATCH_START_GRF_SHIFT_2;
> > +
> > + ksp0 = params->wm_prog_kernel;
> > + ksp2 = params->wm_prog_kernel +
> params->wm_prog_data->ksp_offset_2;
> > +
> > + if (params->wm_prog_data->dispatch_8)
> > + dw4 |= GEN7_PS_8_DISPATCH_ENABLE;
> > + if (params->wm_prog_data->dispatch_16)
> > + dw4 |= GEN7_PS_16_DISPATCH_ENABLE;
> > + } else {
> > + /* The hardware gets angry if we don't enable at least one
> dispatch
> > + * mode, so just enable 16-pixel dispatch if we don't have a
> program.
> > + */
> > + dw4 |= GEN7_PS_16_DISPATCH_ENABLE;
> > }
> >
> > if (params->src.mt)
> > @@ -555,13 +570,13 @@ gen7_blorp_emit_ps_config(struct brw_context *brw,
> >
> > BEGIN_BATCH(8);
> > OUT_BATCH(_3DSTATE_PS << 16 | (8 - 2));
> > - OUT_BATCH(params->wm_prog_kernel);
> > + OUT_BATCH(ksp0);
> > OUT_BATCH(dw2);
> > OUT_BATCH(0);
> > OUT_BATCH(dw4);
> > OUT_BATCH(dw5);
> > - OUT_BATCH(0);
> > - OUT_BATCH(0);
> > + OUT_BATCH(0); /* kernel 1 pointer */
> > + OUT_BATCH(ksp2);
> > ADVANCE_BATCH();
> > }
> >
> > diff --git a/src/mesa/drivers/dri/i965/gen8_blorp.c
> b/src/mesa/drivers/dri/i965/gen8_blorp.c
> > index 5cd070f..c2f4b85 100644
> > --- a/src/mesa/drivers/dri/i965/gen8_blorp.c
> > +++ b/src/mesa/drivers/dri/i965/gen8_blorp.c
> > @@ -372,13 +372,11 @@ gen8_blorp_emit_ps_config(struct brw_context *brw,
> > const struct brw_blorp_params *params)
> > {
> > const struct brw_blorp_prog_data *prog_data = params->wm_prog_data;
> > - uint32_t dw3, dw5, dw6, dw7;
> > + uint32_t dw3, dw5, dw6, dw7, ksp0, ksp2;
> >
> > - dw3 = dw5 = dw6 = dw7 = 0;
> > + dw3 = dw5 = dw6 = dw7 = ksp0 = ksp2 = 0;
> > dw3 |= GEN7_PS_VECTOR_MASK_ENABLE;
> >
> > - dw6 |= GEN7_PS_16_DISPATCH_ENABLE;
> > -
> > if (params->src.mt) {
> > dw3 |= 1 << GEN7_PS_SAMPLER_COUNT_SHIFT; /* Up to 4 samplers */
> > dw3 |= 2 << GEN7_PS_BINDING_TABLE_ENTRY_COUNT_SHIFT; /* Two
> surfaces */
> > @@ -387,7 +385,16 @@ gen8_blorp_emit_ps_config(struct brw_context *brw,
> > }
> >
> > dw6 |= GEN7_PS_PUSH_CONSTANT_ENABLE;
> > - dw7 |= prog_data->first_curbe_grf <<
> GEN7_PS_DISPATCH_START_GRF_SHIFT_0;
> > + dw7 |= prog_data->first_curbe_grf_0 <<
> GEN7_PS_DISPATCH_START_GRF_SHIFT_0;
> > + dw7 |= prog_data->first_curbe_grf_2 <<
> GEN7_PS_DISPATCH_START_GRF_SHIFT_2;
> > +
> > + if (params->wm_prog_data->dispatch_8)
> > + dw6 |= GEN7_PS_8_DISPATCH_ENABLE;
> > + if (params->wm_prog_data->dispatch_16)
> > + dw6 |= GEN7_PS_16_DISPATCH_ENABLE;
> > +
> > + ksp0 = params->wm_prog_kernel;
> > + ksp2 = params->wm_prog_kernel + params->wm_prog_data->ksp_offset_2;
> >
> > /* 3DSTATE_PS expects the number of threads per PSD, which is always
> 64;
> > * it implicitly scales for different GT levels (which have some #
> of PSDs).
> > @@ -404,16 +411,16 @@ gen8_blorp_emit_ps_config(struct brw_context *brw,
> >
> > BEGIN_BATCH(12);
> > OUT_BATCH(_3DSTATE_PS << 16 | (12 - 2));
> > - OUT_BATCH(params->wm_prog_kernel);
> > + OUT_BATCH(ksp0);
> > OUT_BATCH(0);
> > OUT_BATCH(dw3);
> > OUT_BATCH(0);
> > OUT_BATCH(0);
> > OUT_BATCH(dw6);
> > OUT_BATCH(dw7);
> > + OUT_BATCH(0); /* kernel 1 pointer */
> > OUT_BATCH(0);
> > - OUT_BATCH(0);
> > - OUT_BATCH(0);
> > + OUT_BATCH(ksp2);
> > OUT_BATCH(0);
> > ADVANCE_BATCH();
> > }
> > --
> > 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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