[Mesa-dev] [PATCH 2/2] r600g: simplify and fix flushing and synchronization v2

Jerome Glisse j.glisse at gmail.com
Thu Jul 19 16:34:08 PDT 2012


On Thu, Jul 19, 2012 at 6:07 PM, Marek Olšák <maraeo at gmail.com> wrote:
> I have these issues with the patch:
>
> 1) On GPUs without a vertex cache, you flush the texture cache every
> draw operation. Are you kidding?

Show me one app with perf regression due to that ? Or just go look at
what fglrx is doing.

> 2) All colorbuffers / streamout buffers are flushed, even those which
> are not enabled. E.g. instead of flushing only CB0 when there is only
> one, this code flushes all of them. Why? This either needs an
> explanation or it should only flush the buffers which are enabled
> (like the old code did).

fglrx + no perf regression ...

> 3) Please explain:
> - why you added PS_PARTIAL_FLUSH in r600_texture_barrier and
> r600_set_framebuffer_state.

fglrx is doing something similar

> - why you added CACHE_FLUSH_AND_INV_EVENT in set_framebuffer_state for
> R700 and evergreen.

fglrx ...

> - why you applied the CB flush workarounds meant for RV6xx to all R600
> and R700 chipsets.

fglrx ...

> - why the streamout workaround for RV6xx (S_0085F0_DEST_BASE_0_ENA) is
> applied to all R600, R700, and evergreen chipsets.

didn't hurt thought fglrx is not using that at all but i did not
wanted to remove it

> - why R600_CONTEXT_FLUSH_AND_INV emits SURFACE_SYNC on evergreen,
> resulting in emission of SURFACE_SYNC twice in a row in most
> situations.

fglrx is doing that and without that lockup ...

> Flushing has always worked without all the changes (1, 2, 3) mentioned
> above, so please if you don't have a reasonable explanation, revert to
> the old behavior.

Well if you have a better solution please show me ...

Cheers,
Jerome

> 4) R600_CONTEXT_DRAW_FLUSH is a misleading name. Please rename it to
> R600_CONTEXT_PS_PARTIAL_FLUSH. Also, FLUSH_AND_INV_DB_META should be
> prefixed with EVENT_TYPE_.
>
> Overall, the idea of simplifying flushing is good, but the result
> looks worse than what is in master already and it generally adds more
> work for the hardware. Also, the title is misleading. The patch
> doesn't fix flushing in general, because there was nothing wrong with
> it in the first place. Except maybe hyperz, which is almost unrelated
> to what the patch tries to achieve.
>
> Marek
>
> On Tue, Jul 17, 2012 at 7:58 PM,  <j.glisse at gmail.com> wrote:
>> From: Jerome Glisse <jglisse at redhat.com>
>>
>> Flushing and synchronization only need to happen at begining
>> and end of cs, and after each draw packet if necessary. This
>> patch is especialy needed for hyperz/htile feature.
>>
>> v2: Separate evergreen and r6xx/r7xx flushing/syncing allow
>>     easier specialization of each functions. Fix r6xx/r7xx
>>     regression.
>>
>> Signed-off-by: Jerome Glisse <jglisse at redhat.com>
>> ---
>>  src/gallium/drivers/r600/evergreen_compute.c       |   23 +--
>>  .../drivers/r600/evergreen_compute_internal.c      |    4 +-
>>  src/gallium/drivers/r600/evergreen_hw_context.c    |  110 ++++++++++-
>>  src/gallium/drivers/r600/evergreen_state.c         |   14 +-
>>  src/gallium/drivers/r600/evergreend.h              |    3 +-
>>  src/gallium/drivers/r600/r600.h                    |   19 +-
>>  src/gallium/drivers/r600/r600_buffer.c             |    2 +-
>>  src/gallium/drivers/r600/r600_hw_context.c         |  203 ++++++++++++--------
>>  src/gallium/drivers/r600/r600_hw_context_priv.h    |    3 +-
>>  src/gallium/drivers/r600/r600_pipe.c               |    2 -
>>  src/gallium/drivers/r600/r600_pipe.h               |    6 +-
>>  src/gallium/drivers/r600/r600_state.c              |   23 +--
>>  src/gallium/drivers/r600/r600_state_common.c       |   68 ++-----
>>  13 files changed, 297 insertions(+), 183 deletions(-)
>>
>> diff --git a/src/gallium/drivers/r600/evergreen_compute.c b/src/gallium/drivers/r600/evergreen_compute.c
>> index 947a328..37c3395 100644
>> --- a/src/gallium/drivers/r600/evergreen_compute.c
>> +++ b/src/gallium/drivers/r600/evergreen_compute.c
>> @@ -96,7 +96,7 @@ static void evergreen_cs_set_vertex_buffer(
>>         vb->buffer = buffer;
>>         vb->user_buffer = NULL;
>>
>> -       r600_inval_vertex_cache(rctx);
>> +       rctx->flags |= R600_CONTEXT_VTX_FLUSH;
>>         state->dirty_mask |= 1 << vb_index;
>>         r600_atom_dirty(rctx, &state->atom);
>>  }
>> @@ -208,8 +208,7 @@ static void evergreen_bind_compute_state(struct pipe_context *ctx_, void *state)
>>         res->usage = RADEON_USAGE_READ;
>>         res->coher_bo_size = ctx->cs_shader->bc.ndw*4;
>>
>> -       r600_inval_shader_cache(ctx);
>> -
>> +       ctx->flags |= R600_CONTEXT_SH_FLUSH;
>>  }
>>
>>  /* The kernel parameters are stored a vtx buffer (ID=0), besides the explicit
>> @@ -364,8 +363,11 @@ static void compute_emit_cs(struct r600_context *ctx)
>>          */
>>         r600_emit_atom(ctx, &ctx->start_compute_cs_cmd.atom);
>>
>> +       ctx->flags |= R600_CONTEXT_CB_FLUSH;
>> +       r600_flush_emit(ctx);
>> +
>>         /* Emit cb_state */
>> -        cb_state = ctx->states[R600_PIPE_STATE_FRAMEBUFFER];
>> +       cb_state = ctx->states[R600_PIPE_STATE_FRAMEBUFFER];
>>         r600_context_pipe_state_emit(ctx, cb_state, RADEON_CP_PACKET3_COMPUTE_MODE);
>>
>>         /* Emit vertex buffer state */
>> @@ -405,15 +407,8 @@ static void compute_emit_cs(struct r600_context *ctx)
>>                 }
>>         }
>>
>> -       /* r600_flush_framebuffer() updates the cb_flush_flags and then
>> -        * calls r600_emit_atom() on the ctx->surface_sync_cmd.atom, which emits
>> -        * a SURFACE_SYNC packet via r600_emit_surface_sync().
>> -        *
>> -        * XXX r600_emit_surface_sync() hardcodes the CP_COHER_SIZE to
>> -        * 0xffffffff, so we will need to add a field to struct
>> -        * r600_surface_sync_cmd if we want to manually set this value.
>> -        */
>> -       r600_flush_framebuffer(ctx, true /* Flush now */);
>> +       ctx->flags |= R600_CONTEXT_CB_FLUSH;
>> +       r600_flush_emit(ctx);
>>
>>  #if 0
>>         COMPUTE_DBG("cdw: %i\n", cs->cdw);
>> @@ -460,6 +455,8 @@ static void evergreen_launch_grid(
>>         evergreen_set_lds(ctx->cs_shader, 0, 0, num_waves);
>>         evergreen_compute_upload_input(ctx_, block_layout, grid_layout, input);
>>         evergreen_direct_dispatch(ctx_, block_layout, grid_layout);
>> +       /* set draw pending so flush function know we mean business */
>> +       ctx->flags |= R600_CONTEXT_DRAW_PENDING;
>>         compute_emit_cs(ctx);
>>  }
>>
>> diff --git a/src/gallium/drivers/r600/evergreen_compute_internal.c b/src/gallium/drivers/r600/evergreen_compute_internal.c
>> index 1d11bab..8bb6426 100644
>> --- a/src/gallium/drivers/r600/evergreen_compute_internal.c
>> +++ b/src/gallium/drivers/r600/evergreen_compute_internal.c
>> @@ -559,7 +559,7 @@ void evergreen_set_tex_resource(
>>
>>         res->coher_bo_size = tmp->offset[0] + util_format_get_blockwidth(tmp->real_format)*view->base.texture->width0*height*depth;
>>
>> -       r600_inval_texture_cache(pipe->ctx);
>> +       pipe->ctx->flags |= R600_CONTEXT_TEX_FLUSH;
>>
>>         evergreen_emit_force_reloc(res);
>>         evergreen_emit_force_reloc(res);
>> @@ -618,7 +618,7 @@ void evergreen_set_const_cache(
>>         res->usage = RADEON_USAGE_READ;
>>         res->coher_bo_size = size;
>>
>> -       r600_inval_shader_cache(pipe->ctx);
>> +       pipe->ctx->flags |= R600_CONTEXT_SH_FLUSH;
>>  }
>>
>>  struct r600_resource* r600_compute_buffer_alloc_vram(
>> diff --git a/src/gallium/drivers/r600/evergreen_hw_context.c b/src/gallium/drivers/r600/evergreen_hw_context.c
>> index 546c884..cf4a225 100644
>> --- a/src/gallium/drivers/r600/evergreen_hw_context.c
>> +++ b/src/gallium/drivers/r600/evergreen_hw_context.c
>> @@ -761,8 +761,9 @@ static inline void evergreen_context_pipe_state_set_sampler_border(struct r600_c
>>         /* We have to flush the shaders before we change the border color
>>          * registers, or previous draw commands that haven't completed yet
>>          * will end up using the new border color. */
>> -       if (dirty & R600_BLOCK_STATUS_DIRTY)
>> -               r600_context_ps_partial_flush(ctx);
>> +       if (dirty & R600_BLOCK_STATUS_DIRTY) {
>> +               ctx->flags |= R600_CONTEXT_DRAW_FLUSH;
>> +       }
>>         if (dirty)
>>                 r600_context_dirty_block(ctx, block, dirty, 4);
>>  }
>> @@ -823,3 +824,108 @@ void evergreen_set_streamout_enable(struct r600_context *ctx, unsigned buffer_en
>>                 cs->buf[cs->cdw++] = S_028B94_STREAMOUT_0_EN(0);
>>         }
>>  }
>> +
>> +void evergreen_flush_emit(struct r600_context *rctx)
>> +{
>> +       struct radeon_winsys_cs *cs = rctx->cs;
>> +       unsigned mask;
>> +
>> +       if (!(rctx->flags & R600_CONTEXT_DRAW_PENDING)) {
>> +               return;
>> +       }
>> +       /* for GPU without vertex cache flush the texture cache */
>> +       if (!rctx->has_vertex_cache) {
>> +               rctx->flags |= R600_CONTEXT_TEX_FLUSH;
>> +       }
>> +
>> +       if (rctx->flags & R600_CONTEXT_DRAW_FLUSH) {
>> +               rctx->flags &= ~R600_CONTEXT_DRAW_FLUSH;
>> +               cs->buf[cs->cdw++] = PKT3(PKT3_EVENT_WRITE, 0, 0);
>> +               cs->buf[cs->cdw++] = EVENT_TYPE(EVENT_TYPE_PS_PARTIAL_FLUSH) | EVENT_INDEX(4);
>> +       }
>> +
>> +       if (rctx->flags & R600_CONTEXT_DB_FLUSH) {
>> +               cs->buf[cs->cdw++] = PKT3(PKT3_EVENT_WRITE, 0, 0);
>> +               cs->buf[cs->cdw++] = EVENT_TYPE(FLUSH_AND_INV_DB_META) | EVENT_INDEX(0);
>> +       }
>> +
>> +       mask = R600_CONTEXT_CB_FLUSH |
>> +              R600_CONTEXT_DB_FLUSH |
>> +              R600_CONTEXT_SH_FLUSH |
>> +              R600_CONTEXT_TEX_FLUSH |
>> +              R600_CONTEXT_VTX_FLUSH |
>> +              R600_CONTEXT_STREAMOUT_FLUSH;
>> +       if (rctx->flags & mask) {
>> +               /* anything left (cb, vtx, shader, streamout) can be flushed
>> +                * in a more generic way
>> +                */
>> +               unsigned flags = 0;
>> +
>> +               flags |= (rctx->flags & R600_CONTEXT_CB_FLUSH) ? S_0085F0_CB_ACTION_ENA(1) |
>> +                                                                S_0085F0_CB0_DEST_BASE_ENA(1) |
>> +                                                                S_0085F0_CB1_DEST_BASE_ENA(1) |
>> +                                                                S_0085F0_CB2_DEST_BASE_ENA(1) |
>> +                                                                S_0085F0_CB3_DEST_BASE_ENA(1) |
>> +                                                                S_0085F0_CB4_DEST_BASE_ENA(1) |
>> +                                                                S_0085F0_CB5_DEST_BASE_ENA(1) |
>> +                                                                S_0085F0_CB6_DEST_BASE_ENA(1) |
>> +                                                                S_0085F0_CB7_DEST_BASE_ENA(1) |
>> +                                                                S_0085F0_CB8_DEST_BASE_ENA(1) |
>> +                                                                S_0085F0_CB9_DEST_BASE_ENA(1) |
>> +                                                                S_0085F0_CB10_DEST_BASE_ENA(1) |
>> +                                                                S_0085F0_CB11_DEST_BASE_ENA(1) : 0;
>> +               flags |= (rctx->flags & R600_CONTEXT_DB_FLUSH) ? S_0085F0_DB_ACTION_ENA(1) |
>> +                                                                S_0085F0_DB_DEST_BASE_ENA(1) : 0;
>> +               flags |= (rctx->flags & R600_CONTEXT_SH_FLUSH) ? S_0085F0_SH_ACTION_ENA(1) : 0;
>> +               flags |= (rctx->flags & R600_CONTEXT_TEX_FLUSH) ? S_0085F0_TC_ACTION_ENA(1) : 0;
>> +               flags |= (rctx->flags & R600_CONTEXT_VTX_FLUSH) ? S_0085F0_VC_ACTION_ENA(1) : 0;
>> +               flags |= (rctx->flags & R600_CONTEXT_STREAMOUT_FLUSH) ? S_0085F0_DEST_BASE_0_ENA(1) |
>> +                                                                       S_0085F0_SMX_ACTION_ENA(1) |
>> +                                                                       S_0085F0_SO0_DEST_BASE_ENA(1) |
>> +                                                                       S_0085F0_SO1_DEST_BASE_ENA(1) |
>> +                                                                       S_0085F0_SO2_DEST_BASE_ENA(1) |
>> +                                                                       S_0085F0_SO3_DEST_BASE_ENA(1) : 0;
>> +               rctx->flags &= ~mask;
>> +               cs->buf[cs->cdw++] = PKT3(PKT3_SURFACE_SYNC, 3, 0);
>> +               cs->buf[cs->cdw++] = flags;           /* CP_COHER_CNTL */
>> +               cs->buf[cs->cdw++] = 0xffffffff;      /* CP_COHER_SIZE */
>> +               cs->buf[cs->cdw++] = 0;               /* CP_COHER_BASE */
>> +               cs->buf[cs->cdw++] = 0x0000000A;      /* POLL_INTERVAL */
>> +       }
>> +
>> +       if (rctx->flags & R600_CONTEXT_FLUSH_AND_INV) {
>> +               rctx->flags &= ~R600_CONTEXT_FLUSH_AND_INV;
>> +
>> +               cs->buf[cs->cdw++] = PKT3(PKT3_EVENT_WRITE, 0, 0);
>> +               cs->buf[cs->cdw++] = EVENT_TYPE(EVENT_TYPE_CACHE_FLUSH_AND_INV_EVENT) | EVENT_INDEX(0);
>> +               cs->buf[cs->cdw++] = PKT3(PKT3_SURFACE_SYNC, 3, 0);
>> +               /* CP_COHER_CNTL */
>> +               cs->buf[cs->cdw++] = S_0085F0_SO0_DEST_BASE_ENA(1) |
>> +                                    S_0085F0_SO1_DEST_BASE_ENA(1) |
>> +                                    S_0085F0_SO2_DEST_BASE_ENA(1) |
>> +                                    S_0085F0_SO3_DEST_BASE_ENA(1) |
>> +                                    S_0085F0_CB0_DEST_BASE_ENA(1) |
>> +                                    S_0085F0_CB1_DEST_BASE_ENA(1) |
>> +                                    S_0085F0_CB2_DEST_BASE_ENA(1) |
>> +                                    S_0085F0_CB3_DEST_BASE_ENA(1) |
>> +                                    S_0085F0_CB4_DEST_BASE_ENA(1) |
>> +                                    S_0085F0_CB5_DEST_BASE_ENA(1) |
>> +                                    S_0085F0_CB6_DEST_BASE_ENA(1) |
>> +                                    S_0085F0_CB7_DEST_BASE_ENA(1) |
>> +                                    S_0085F0_DB_DEST_BASE_ENA(1) |
>> +                                    S_0085F0_CB8_DEST_BASE_ENA(1) |
>> +                                    S_0085F0_CB9_DEST_BASE_ENA(1) |
>> +                                    S_0085F0_CB10_DEST_BASE_ENA(1) |
>> +                                    S_0085F0_CB11_DEST_BASE_ENA(1) |
>> +                                    S_0085F0_TC_ACTION_ENA(1) |
>> +                                    S_0085F0_VC_ACTION_ENA(1) |
>> +                                    S_0085F0_SH_ACTION_ENA(1) |
>> +                                    S_0085F0_SMX_ACTION_ENA(1);
>> +               cs->buf[cs->cdw++] = 0xffffffff;      /* CP_COHER_SIZE */
>> +               cs->buf[cs->cdw++] = 0;               /* CP_COHER_BASE */
>> +               cs->buf[cs->cdw++] = 0x0000000A;      /* POLL_INTERVAL */
>> +       }
>> +
>> +       /* everything is properly flush */
>> +       rctx->flags &= R600_CONTEXT_DRAW_PENDING;
>> +}
>> diff --git a/src/gallium/drivers/r600/evergreen_state.c b/src/gallium/drivers/r600/evergreen_state.c
>> index 214d76b..8e3eb95 100644
>> --- a/src/gallium/drivers/r600/evergreen_state.c
>> +++ b/src/gallium/drivers/r600/evergreen_state.c
>> @@ -1160,8 +1160,9 @@ static void evergreen_bind_ps_sampler(struct pipe_context *ctx, unsigned count,
>>         struct r600_context *rctx = (struct r600_context *)ctx;
>>         struct r600_pipe_state **rstates = (struct r600_pipe_state **)states;
>>
>> -       if (count)
>> -               r600_inval_texture_cache(rctx);
>> +       if (count) {
>> +               rctx->flags |= R600_CONTEXT_TEX_FLUSH;
>> +       }
>>
>>         memcpy(rctx->ps_samplers.samplers, states, sizeof(void*) * count);
>>         rctx->ps_samplers.n_samplers = count;
>> @@ -1176,8 +1177,9 @@ static void evergreen_bind_vs_sampler(struct pipe_context *ctx, unsigned count,
>>         struct r600_context *rctx = (struct r600_context *)ctx;
>>         struct r600_pipe_state **rstates = (struct r600_pipe_state **)states;
>>
>> -       if (count)
>> -               r600_inval_texture_cache(rctx);
>> +       if (count) {
>> +               rctx->flags |= R600_CONTEXT_TEX_FLUSH;
>> +       }
>>
>>         for (int i = 0; i < count; i++) {
>>                 evergreen_context_pipe_state_set_vs_sampler(rctx, rstates[i], i);
>> @@ -1674,6 +1676,7 @@ static void evergreen_db(struct r600_context *rctx, struct r600_pipe_state *rsta
>>         if (rtex->hyperz) {
>>                 uint64_t htile_offset = rtex->hyperz->surface.level[level].offset;
>>
>> +               rctx->flags |= R600_CONTEXT_FLUSH_AND_INV;
>>                 rctx->db_misc_state.hyperz = true;
>>                 rctx->db_misc_state.db_htile_surface_mask = 0xffffffff;
>>                 r600_atom_dirty(rctx, &rctx->db_misc_state.atom);
>> @@ -1709,7 +1712,7 @@ static void evergreen_set_framebuffer_state(struct pipe_context *ctx,
>>         if (rstate == NULL)
>>                 return;
>>
>> -       r600_flush_framebuffer(rctx, false);
>> +       rctx->flags |= R600_CONTEXT_CB_FLUSH | R600_CONTEXT_FLUSH_AND_INV;
>>
>>         /* unreference old buffer and reference new one */
>>         rstate->id = R600_PIPE_STATE_FRAMEBUFFER;
>> @@ -1729,6 +1732,7 @@ static void evergreen_set_framebuffer_state(struct pipe_context *ctx,
>>         }
>>
>>         if (state->zsbuf) {
>> +               rctx->flags |= R600_CONTEXT_DB_FLUSH;
>>                 evergreen_db(rctx, rstate, state);
>>         }
>>
>> diff --git a/src/gallium/drivers/r600/evergreend.h b/src/gallium/drivers/r600/evergreend.h
>> index 1ac5944..672e698 100644
>> --- a/src/gallium/drivers/r600/evergreend.h
>> +++ b/src/gallium/drivers/r600/evergreend.h
>> @@ -46,7 +46,8 @@
>>  #define EVENT_TYPE_PS_PARTIAL_FLUSH            0x10
>>  #define EVENT_TYPE_ZPASS_DONE                  0x15
>>  #define EVENT_TYPE_CACHE_FLUSH_AND_INV_EVENT   0x16
>> -#define EVENT_TYPE_SO_VGTSTREAMOUT_FLUSH       0x1f
>> +#define EVENT_TYPE_SO_VGTSTREAMOUT_FLUSH       0x1f
>> +#define FLUSH_AND_INV_DB_META                  0x2c
>>
>>  #define                EVENT_TYPE(x)                           ((x) << 0)
>>  #define                EVENT_INDEX(x)                          ((x) << 8)
>> diff --git a/src/gallium/drivers/r600/r600.h b/src/gallium/drivers/r600/r600.h
>> index 0ae7959..820b356 100644
>> --- a/src/gallium/drivers/r600/r600.h
>> +++ b/src/gallium/drivers/r600/r600.h
>> @@ -188,8 +188,17 @@ struct r600_so_target {
>>         unsigned                so_index;
>>  };
>>
>> -#define R600_CONTEXT_DRAW_PENDING      (1 << 0)
>> -#define R600_CONTEXT_DST_CACHES_DIRTY  (1 << 1)
>> +#define R600_CONTEXT_DRAW_PENDING              (1 << 0)
>> +#define R600_CONTEXT_DRAW_FLUSH                        (1 << 1)
>> +#define R600_CONTEXT_CB_FLUSH                  (1 << 2)
>> +#define R600_CONTEXT_DB_FLUSH                  (1 << 3)
>> +#define R600_CONTEXT_SH_FLUSH                  (1 << 4)
>> +#define R600_CONTEXT_TEX_FLUSH                 (1 << 5)
>> +#define R600_CONTEXT_VTX_FLUSH                 (1 << 6)
>> +#define R600_CONTEXT_STREAMOUT_FLUSH           (1 << 7)
>> +#define R600_CONTEXT_WAIT_IDLE                 (1 << 8)
>> +#define R600_CONTEXT_FLUSH_AND_INV             (1 << 9)
>> +#define R600_CONTEXT_HTILE_ERRATA              (1 << 10)
>>
>>  struct r600_context;
>>  struct r600_screen;
>> @@ -207,10 +216,7 @@ void r600_context_flush(struct r600_context *ctx, unsigned flags);
>>
>>  void r600_context_emit_fence(struct r600_context *ctx, struct r600_resource *fence,
>>                               unsigned offset, unsigned value);
>> -void r600_inval_shader_cache(struct r600_context *ctx);
>> -void r600_inval_texture_cache(struct r600_context *ctx);
>> -void r600_inval_vertex_cache(struct r600_context *ctx);
>> -void r600_flush_framebuffer(struct r600_context *ctx, bool flush_now);
>> +void r600_flush_emit(struct r600_context *ctx);
>>
>>  void r600_context_streamout_begin(struct r600_context *ctx);
>>  void r600_context_streamout_end(struct r600_context *ctx);
>> @@ -222,6 +228,7 @@ void r600_context_block_resource_emit_dirty(struct r600_context *ctx, struct r60
>>  int evergreen_context_init(struct r600_context *ctx);
>>  void evergreen_context_pipe_state_set_ps_sampler(struct r600_context *ctx, struct r600_pipe_state *state, unsigned id);
>>  void evergreen_context_pipe_state_set_vs_sampler(struct r600_context *ctx, struct r600_pipe_state *state, unsigned id);
>> +void evergreen_flush_emit(struct r600_context *rctx);
>>
>>  void _r600_pipe_state_add_reg_bo(struct r600_context *ctx,
>>                                  struct r600_pipe_state *state,
>> diff --git a/src/gallium/drivers/r600/r600_buffer.c b/src/gallium/drivers/r600/r600_buffer.c
>> index 8e2deb1..774b876 100644
>> --- a/src/gallium/drivers/r600/r600_buffer.c
>> +++ b/src/gallium/drivers/r600/r600_buffer.c
>> @@ -110,7 +110,7 @@ static void *r600_buffer_transfer_map(struct pipe_context *pipe,
>>                                         struct r600_vertexbuf_state * state =
>>                                                 &rctx->vertex_buffer_state;
>>                                         state->dirty_mask |= 1 << i;
>> -                                       r600_inval_vertex_cache(rctx);
>> +                                       rctx->flags |= R600_CONTEXT_VTX_FLUSH;
>>                                         r600_atom_dirty(rctx, &state->atom);
>>                                 }
>>                         }
>> diff --git a/src/gallium/drivers/r600/r600_hw_context.c b/src/gallium/drivers/r600/r600_hw_context.c
>> index 4f2c03a..95c861a 100644
>> --- a/src/gallium/drivers/r600/r600_hw_context.c
>> +++ b/src/gallium/drivers/r600/r600_hw_context.c
>> @@ -114,19 +114,6 @@ err:
>>         return;
>>  }
>>
>> -void r600_context_ps_partial_flush(struct r600_context *ctx)
>> -{
>> -       struct radeon_winsys_cs *cs = ctx->cs;
>> -
>> -       if (!(ctx->flags & R600_CONTEXT_DRAW_PENDING))
>> -               return;
>> -
>> -       cs->buf[cs->cdw++] = PKT3(PKT3_EVENT_WRITE, 0, 0);
>> -       cs->buf[cs->cdw++] = EVENT_TYPE(EVENT_TYPE_PS_PARTIAL_FLUSH) | EVENT_INDEX(4);
>> -
>> -       ctx->flags &= ~R600_CONTEXT_DRAW_PENDING;
>> -}
>> -
>>  static void r600_init_block(struct r600_context *ctx,
>>                             struct r600_block *block,
>>                             const struct r600_reg *reg, int index, int nreg,
>> @@ -825,7 +812,7 @@ void r600_need_cs_space(struct r600_context *ctx, unsigned num_dw,
>>         }
>>
>>         /* Count in framebuffer cache flushes at the end of CS. */
>> -       num_dw += 7; /* one SURFACE_SYNC and CACHE_FLUSH_AND_INV (r6xx-only) */
>> +       num_dw += 44; /* one SURFACE_SYNC and CACHE_FLUSH_AND_INV (r6xx-only) */
>>
>>         /* Save 16 dwords for the fence mechanism. */
>>         num_dw += 16;
>> @@ -853,7 +840,7 @@ void r600_context_dirty_block(struct r600_context *ctx,
>>                 LIST_ADDTAIL(&block->list,&ctx->dirty);
>>
>>                 if (block->flags & REG_FLAG_FLUSH_CHANGE) {
>> -                       r600_context_ps_partial_flush(ctx);
>> +                       ctx->flags |= R600_CONTEXT_DRAW_FLUSH;
>>                 }
>>         }
>>  }
>> @@ -1085,8 +1072,9 @@ static inline void r600_context_pipe_state_set_sampler_border(struct r600_contex
>>         /* We have to flush the shaders before we change the border color
>>          * registers, or previous draw commands that haven't completed yet
>>          * will end up using the new border color. */
>> -       if (dirty & R600_BLOCK_STATUS_DIRTY)
>> -               r600_context_ps_partial_flush(ctx);
>> +       if (dirty & R600_BLOCK_STATUS_DIRTY) {
>> +               ctx->flags |= R600_CONTEXT_DRAW_FLUSH;
>> +       }
>>         if (dirty)
>>                 r600_context_dirty_block(ctx, block, dirty, 3);
>>  }
>> @@ -1200,54 +1188,116 @@ void r600_context_block_resource_emit_dirty(struct r600_context *ctx, struct r60
>>         LIST_DELINIT(&block->list);
>>  }
>>
>> -void r600_inval_shader_cache(struct r600_context *ctx)
>> +void r600_flush_emit(struct r600_context *rctx)
>>  {
>> -       ctx->surface_sync_cmd.flush_flags |= S_0085F0_SH_ACTION_ENA(1);
>> -       r600_atom_dirty(ctx, &ctx->surface_sync_cmd.atom);
>> -}
>> -
>> -void r600_inval_texture_cache(struct r600_context *ctx)
>> -{
>> -       ctx->surface_sync_cmd.flush_flags |= S_0085F0_TC_ACTION_ENA(1);
>> -       r600_atom_dirty(ctx, &ctx->surface_sync_cmd.atom);
>> -}
>> -
>> -void r600_inval_vertex_cache(struct r600_context *ctx)
>> -{
>> -       if (ctx->has_vertex_cache) {
>> -               ctx->surface_sync_cmd.flush_flags |= S_0085F0_VC_ACTION_ENA(1);
>> -       } else {
>> -               /* Some GPUs don't have the vertex cache and must use the texture cache instead. */
>> -               ctx->surface_sync_cmd.flush_flags |= S_0085F0_TC_ACTION_ENA(1);
>> -       }
>> -       r600_atom_dirty(ctx, &ctx->surface_sync_cmd.atom);
>> -}
>> +       struct radeon_winsys_cs *cs = rctx->cs;
>> +       unsigned mask;
>>
>> -void r600_flush_framebuffer(struct r600_context *ctx, bool flush_now)
>> -{
>> -       if (!(ctx->flags & R600_CONTEXT_DST_CACHES_DIRTY))
>> +       if (!(rctx->flags & R600_CONTEXT_DRAW_PENDING)) {
>>                 return;
>> +       }
>> +       /* for GPU without vertex cache flush the texture cache */
>> +       if (!rctx->has_vertex_cache) {
>> +               rctx->flags |= R600_CONTEXT_TEX_FLUSH;
>> +       }
>>
>> -       ctx->surface_sync_cmd.flush_flags |=
>> -               r600_get_cb_flush_flags(ctx) |
>> -               (ctx->framebuffer.zsbuf ? S_0085F0_DB_ACTION_ENA(1) | S_0085F0_DB_DEST_BASE_ENA(1) : 0);
>> +       if (rctx->flags & R600_CONTEXT_DRAW_FLUSH) {
>> +               rctx->flags &= ~R600_CONTEXT_DRAW_FLUSH;
>> +               cs->buf[cs->cdw++] = PKT3(PKT3_EVENT_WRITE, 0, 0);
>> +               cs->buf[cs->cdw++] = EVENT_TYPE(EVENT_TYPE_PS_PARTIAL_FLUSH) | EVENT_INDEX(4);
>> +       }
>>
>> -       if (flush_now) {
>> -               r600_emit_atom(ctx, &ctx->surface_sync_cmd.atom);
>> -       } else {
>> -               r600_atom_dirty(ctx, &ctx->surface_sync_cmd.atom);
>> +       if (rctx->flags & R600_CONTEXT_WAIT_IDLE) {
>> +               /* wait for things to settle */
>> +               rctx->flags &= ~R600_CONTEXT_WAIT_IDLE;
>> +               cs->buf[cs->cdw++] = PKT3(PKT3_SET_CONFIG_REG, 1, 0);
>> +               cs->buf[cs->cdw++] = (R_008040_WAIT_UNTIL - R600_CONFIG_REG_OFFSET) >> 2;
>> +               cs->buf[cs->cdw++] = S_008040_WAIT_3D_IDLE(1);
>>         }
>>
>> -       /* Also add a complete cache flush to work around broken flushing on R6xx. */
>> -       if (ctx->chip_class == R600) {
>> -               if (flush_now) {
>> -                       r600_emit_atom(ctx, &ctx->r6xx_flush_and_inv_cmd);
>> -               } else {
>> -                       r600_atom_dirty(ctx, &ctx->r6xx_flush_and_inv_cmd);
>> +       if (rctx->flags & R600_CONTEXT_FLUSH_AND_INV) {
>> +               rctx->flags &= ~R600_CONTEXT_FLUSH_AND_INV;
>> +
>> +               cs->buf[cs->cdw++] = PKT3(PKT3_EVENT_WRITE, 0, 0);
>> +               cs->buf[cs->cdw++] = EVENT_TYPE(EVENT_TYPE_CACHE_FLUSH_AND_INV_EVENT) | EVENT_INDEX(0);
>> +
>> +               /* db flush are special due to errata with hyperz, we need to
>> +                * insert noop so cache have time to really flush
>> +                */
>> +               if (rctx->flags & R600_CONTEXT_HTILE_ERRATA) {
>> +                       /* R600_CONTEXT_HTILE_ERRATA is persistant for whole cs */
>> +                       cs->buf[cs->cdw++] = PKT3(PKT3_NOP, 31, 0);
>> +                       cs->buf[cs->cdw++] = 0xdeadcafe;
>> +                       cs->buf[cs->cdw++] = 0xdeadcafe;
>> +                       cs->buf[cs->cdw++] = 0xdeadcafe;
>> +                       cs->buf[cs->cdw++] = 0xdeadcafe;
>> +                       cs->buf[cs->cdw++] = 0xdeadcafe;
>> +                       cs->buf[cs->cdw++] = 0xdeadcafe;
>> +                       cs->buf[cs->cdw++] = 0xdeadcafe;
>> +                       cs->buf[cs->cdw++] = 0xdeadcafe;
>> +                       cs->buf[cs->cdw++] = 0xdeadcafe;
>> +                       cs->buf[cs->cdw++] = 0xdeadcafe;
>> +                       cs->buf[cs->cdw++] = 0xdeadcafe;
>> +                       cs->buf[cs->cdw++] = 0xdeadcafe;
>> +                       cs->buf[cs->cdw++] = 0xdeadcafe;
>> +                       cs->buf[cs->cdw++] = 0xdeadcafe;
>> +                       cs->buf[cs->cdw++] = 0xdeadcafe;
>> +                       cs->buf[cs->cdw++] = 0xdeadcafe;
>> +                       cs->buf[cs->cdw++] = 0xdeadcafe;
>> +                       cs->buf[cs->cdw++] = 0xdeadcafe;
>> +                       cs->buf[cs->cdw++] = 0xdeadcafe;
>> +                       cs->buf[cs->cdw++] = 0xdeadcafe;
>> +                       cs->buf[cs->cdw++] = 0xdeadcafe;
>> +                       cs->buf[cs->cdw++] = 0xdeadcafe;
>> +                       cs->buf[cs->cdw++] = 0xdeadcafe;
>> +                       cs->buf[cs->cdw++] = 0xdeadcafe;
>> +                       cs->buf[cs->cdw++] = 0xdeadcafe;
>> +                       cs->buf[cs->cdw++] = 0xdeadcafe;
>> +                       cs->buf[cs->cdw++] = 0xdeadcafe;
>> +                       cs->buf[cs->cdw++] = 0xdeadcafe;
>> +                       cs->buf[cs->cdw++] = 0xdeadcafe;
>> +                       cs->buf[cs->cdw++] = 0xdeadcafe;
>> +                       cs->buf[cs->cdw++] = 0xdeadcafe;
>> +                       cs->buf[cs->cdw++] = 0xdeadcafe;
>>                 }
>>         }
>>
>> -       ctx->flags &= ~R600_CONTEXT_DST_CACHES_DIRTY;
>> +       mask = R600_CONTEXT_CB_FLUSH |
>> +              R600_CONTEXT_DB_FLUSH |
>> +              R600_CONTEXT_SH_FLUSH |
>> +              R600_CONTEXT_TEX_FLUSH |
>> +              R600_CONTEXT_VTX_FLUSH |
>> +              R600_CONTEXT_STREAMOUT_FLUSH;
>> +       if (rctx->flags & mask) {
>> +               /* anything left (cb, vtx, shader, streamout) can be flushed
>> +                * in a more generic way
>> +                */
>> +               unsigned flags = 0;
>> +
>> +               flags |= S_0085F0_CB1_DEST_BASE_ENA(1) | S_0085F0_DEST_BASE_0_ENA(1);
>> +               flags |= (rctx->flags & R600_CONTEXT_CB_FLUSH) ? S_0085F0_CB_ACTION_ENA(1) : 0;
>> +               flags |= (rctx->flags & R600_CONTEXT_DB_FLUSH) ? S_0085F0_DB_ACTION_ENA(1) : 0;
>> +               flags |= (rctx->flags & R600_CONTEXT_SH_FLUSH) ? S_0085F0_SH_ACTION_ENA(1) : 0;
>> +               flags |= (rctx->flags & R600_CONTEXT_TEX_FLUSH) ? S_0085F0_TC_ACTION_ENA(1) : 0;
>> +               flags |= (rctx->flags & R600_CONTEXT_VTX_FLUSH) ? S_0085F0_VC_ACTION_ENA(1) : 0;
>> +               flags |= (rctx->flags & R600_CONTEXT_STREAMOUT_FLUSH) ? S_0085F0_DEST_BASE_0_ENA(1) |
>> +                                                                       S_0085F0_SO0_DEST_BASE_ENA(1) |
>> +                                                                       S_0085F0_SO1_DEST_BASE_ENA(1) |
>> +                                                                       S_0085F0_SO2_DEST_BASE_ENA(1) |
>> +                                                                       S_0085F0_SO3_DEST_BASE_ENA(1) |
>> +                                                                       S_0085F0_SMX_ACTION_ENA(1) : 0;
>> +               rctx->flags &= ~mask;
>> +               cs->buf[cs->cdw++] = PKT3(PKT3_SURFACE_SYNC, 3, 0);
>> +               cs->buf[cs->cdw++] = flags;           /* CP_COHER_CNTL */
>> +               cs->buf[cs->cdw++] = 0xffffffff;      /* CP_COHER_SIZE */
>> +               cs->buf[cs->cdw++] = 0;               /* CP_COHER_BASE */
>> +               cs->buf[cs->cdw++] = 0x0000000A;      /* POLL_INTERVAL */
>> +       }
>> +
>> +       /* everything is properly flush */
>> +       rctx->flags &= R600_CONTEXT_DRAW_PENDING |
>> +       /* R600_CONTEXT_HTILE_ERRATA is persistant for whole cs */
>> +                      R600_CONTEXT_HTILE_ERRATA;
>>  }
>>
>>  void r600_context_flush(struct r600_context *ctx, unsigned flags)
>> @@ -1276,10 +1326,13 @@ void r600_context_flush(struct r600_context *ctx, unsigned flags)
>>                 streamout_suspended = true;
>>         }
>>
>> -       r600_flush_framebuffer(ctx, true);
>> -
>> -       /* partial flush is needed to avoid lockups on some chips with user fences */
>> -       r600_context_ps_partial_flush(ctx);
>> +       ctx->flags |= R600_CONTEXT_DRAW_FLUSH;
>> +       ctx->flags |= R600_CONTEXT_FLUSH_AND_INV;
>> +       if (ctx->chip_class >= EVERGREEN) {
>> +               evergreen_flush_emit(ctx);
>> +       } else {
>> +               r600_flush_emit(ctx);
>> +       }
>>
>>         /* old kernels and userspace don't set SX_MISC, so we must reset it to 0 here */
>>         if (ctx->chip_class <= R700) {
>> @@ -1298,11 +1351,9 @@ void r600_context_flush(struct r600_context *ctx, unsigned flags)
>>         /* Begin a new CS. */
>>         r600_emit_atom(ctx, &ctx->start_cs_cmd.atom);
>>
>> -       /* Invalidate caches. */
>> -       r600_inval_vertex_cache(ctx);
>> -       r600_inval_texture_cache(ctx);
>> -       r600_inval_shader_cache(ctx);
>> -       r600_flush_framebuffer(ctx, false);
>> +       ctx->flags |= R600_CONTEXT_SH_FLUSH |
>> +                     R600_CONTEXT_TEX_FLUSH |
>> +                     R600_CONTEXT_VTX_FLUSH;
>>
>>         /* Re-emit states. */
>>         r600_atom_dirty(ctx, &ctx->cb_misc_state.atom);
>> @@ -1357,7 +1408,10 @@ void r600_context_emit_fence(struct r600_context *ctx, struct r600_resource *fen
>>         va = r600_resource_va(&ctx->screen->screen, (void*)fence_bo);
>>         va = va + (offset << 2);
>>
>> -       r600_context_ps_partial_flush(ctx);
>> +       ctx->flags &= ~R600_CONTEXT_DRAW_FLUSH;
>> +       cs->buf[cs->cdw++] = PKT3(PKT3_EVENT_WRITE, 0, 0);
>> +       cs->buf[cs->cdw++] = EVENT_TYPE(EVENT_TYPE_PS_PARTIAL_FLUSH) | EVENT_INDEX(4);
>> +
>>         cs->buf[cs->cdw++] = PKT3(PKT3_EVENT_WRITE_EOP, 4, 0);
>>         cs->buf[cs->cdw++] = EVENT_TYPE(EVENT_TYPE_CACHE_FLUSH_AND_INV_TS_EVENT) | EVENT_INDEX(5);
>>         cs->buf[cs->cdw++] = va & 0xFFFFFFFFUL;       /* ADDRESS_LO */
>> @@ -1518,7 +1572,7 @@ void r600_context_streamout_end(struct r600_context *ctx)
>>  {
>>         struct radeon_winsys_cs *cs = ctx->cs;
>>         struct r600_so_target **t = ctx->so_targets;
>> -       unsigned i, flush_flags = 0;
>> +       unsigned i;
>>         uint64_t va;
>>
>>         if (ctx->chip_class >= EVERGREEN) {
>> @@ -1545,7 +1599,6 @@ void r600_context_streamout_end(struct r600_context *ctx)
>>                                 r600_context_bo_reloc(ctx,  t[i]->filled_size,
>>                                                       RADEON_USAGE_WRITE);
>>
>> -                       flush_flags |= S_0085F0_SO0_DEST_BASE_ENA(1) << i;
>>                 }
>>         }
>>
>> @@ -1554,23 +1607,11 @@ void r600_context_streamout_end(struct r600_context *ctx)
>>         } else {
>>                 r600_set_streamout_enable(ctx, 0);
>>         }
>> -
>> +       ctx->flags |= R600_CONTEXT_STREAMOUT_FLUSH;
>>         /* This is needed to fix cache flushes on r600. */
>>         if (ctx->chip_class == R600) {
>> -               if (ctx->family == CHIP_RV670 ||
>> -                   ctx->family == CHIP_RS780 ||
>> -                   ctx->family == CHIP_RS880) {
>> -                       flush_flags |= S_0085F0_DEST_BASE_0_ENA(1);
>> -               }
>> -
>> -               r600_atom_dirty(ctx, &ctx->r6xx_flush_and_inv_cmd);
>> +               ctx->flags |= R600_CONTEXT_FLUSH_AND_INV;
>>         }
>> -
>> -       /* Flush streamout caches. */
>> -       ctx->surface_sync_cmd.flush_flags |=
>> -               S_0085F0_SMX_ACTION_ENA(1) | flush_flags;
>> -       r600_atom_dirty(ctx, &ctx->surface_sync_cmd.atom);
>> -
>>         ctx->num_cs_dw_streamout_end = 0;
>>
>>  #if 0
>> diff --git a/src/gallium/drivers/r600/r600_hw_context_priv.h b/src/gallium/drivers/r600/r600_hw_context_priv.h
>> index 037d5e3..6929336 100644
>> --- a/src/gallium/drivers/r600/r600_hw_context_priv.h
>> +++ b/src/gallium/drivers/r600/r600_hw_context_priv.h
>> @@ -28,7 +28,8 @@
>>
>>  #include "r600_pipe.h"
>>
>> -#define R600_MAX_DRAW_CS_DWORDS 11
>> +/* we alsoe here account size needed for flushing */
>> +#define R600_MAX_DRAW_CS_DWORDS 64
>>
>>  /* these flags are used in register flags and added into block flags */
>>  #define REG_FLAG_NEED_BO 1
>> diff --git a/src/gallium/drivers/r600/r600_pipe.c b/src/gallium/drivers/r600/r600_pipe.c
>> index 9f20560..07a398f 100644
>> --- a/src/gallium/drivers/r600/r600_pipe.c
>> +++ b/src/gallium/drivers/r600/r600_pipe.c
>> @@ -231,8 +231,6 @@ static struct pipe_context *r600_create_context(struct pipe_screen *screen, void
>>         rctx->context.create_video_decoder = vl_create_decoder;
>>         rctx->context.create_video_buffer = vl_video_buffer_create;
>>
>> -       r600_init_common_atoms(rctx);
>> -
>>         switch (rctx->chip_class) {
>>         case R600:
>>         case R700:
>> diff --git a/src/gallium/drivers/r600/r600_pipe.h b/src/gallium/drivers/r600/r600_pipe.h
>> index 5ff4d51..4add90c 100644
>> --- a/src/gallium/drivers/r600/r600_pipe.h
>> +++ b/src/gallium/drivers/r600/r600_pipe.h
>> @@ -341,9 +341,7 @@ struct r600_context {
>>         struct r600_command_buffer      start_cs_cmd; /* invariant state mostly */
>>         /** Compute specific registers initializations.  The start_cs_cmd atom
>>          *  must be emitted before start_compute_cs_cmd. */
>> -        struct r600_command_buffer      start_compute_cs_cmd;
>> -       struct r600_surface_sync_cmd    surface_sync_cmd;
>> -       struct r600_atom                r6xx_flush_and_inv_cmd;
>> +        struct r600_command_buffer     start_compute_cs_cmd;
>>         struct r600_cb_misc_state       cb_misc_state;
>>         struct r600_db_misc_state       db_misc_state;
>>         /** Vertex buffers for fetch shaders */
>> @@ -528,8 +526,6 @@ void r600_translate_index_buffer(struct r600_context *r600,
>>  void r600_init_atom(struct r600_atom *atom,
>>                     void (*emit)(struct r600_context *ctx, struct r600_atom *state),
>>                     unsigned num_dw, enum r600_atom_flags flags);
>> -void r600_init_common_atoms(struct r600_context *rctx);
>> -unsigned r600_get_cb_flush_flags(struct r600_context *rctx);
>>  void r600_texture_barrier(struct pipe_context *ctx);
>>  void r600_set_index_buffer(struct pipe_context *ctx,
>>                            const struct pipe_index_buffer *ib);
>> diff --git a/src/gallium/drivers/r600/r600_state.c b/src/gallium/drivers/r600/r600_state.c
>> index 8925a23..3f43a9d 100644
>> --- a/src/gallium/drivers/r600/r600_state.c
>> +++ b/src/gallium/drivers/r600/r600_state.c
>> @@ -1133,8 +1133,9 @@ static void r600_set_sampler_views(struct r600_context *rctx,
>>         struct r600_pipe_sampler_view **rviews = (struct r600_pipe_sampler_view **)views;
>>         unsigned i;
>>
>> -       if (count)
>> -               r600_inval_texture_cache(rctx);
>> +       if (count) {
>> +               rctx->flags |= R600_CONTEXT_TEX_FLUSH;
>> +       }
>>
>>         for (i = 0; i < count; i++) {
>>                 if (rviews[i]) {
>> @@ -1632,6 +1633,8 @@ static void r600_db(struct r600_context *rctx, struct r600_pipe_state *rstate,
>>         if (rtex->hyperz) {
>>                 uint64_t htile_offset = rtex->hyperz->surface.level[level].offset;
>>
>> +               rctx->flags |= R600_CONTEXT_FLUSH_AND_INV;
>> +               rctx->flags |= R600_CONTEXT_HTILE_ERRATA;
>>                 rctx->db_misc_state.hyperz = true;
>>                 rctx->db_misc_state.db_htile_surface_mask = 0xffffffff;
>>                 r600_atom_dirty(rctx, &rctx->db_misc_state.atom);
>> @@ -1676,7 +1679,10 @@ static void r600_set_framebuffer_state(struct pipe_context *ctx,
>>         if (rstate == NULL)
>>                 return;
>>
>> -       r600_flush_framebuffer(rctx, false);
>> +       /* the htile errata is also needed for cb should probably rename */
>> +       rctx->flags |= R600_CONTEXT_CB_FLUSH |
>> +                      R600_CONTEXT_DRAW_FLUSH |
>> +                      R600_CONTEXT_FLUSH_AND_INV;
>>
>>         /* unreference old buffer and reference new one */
>>         rstate->id = R600_PIPE_STATE_FRAMEBUFFER;
>> @@ -1692,6 +1698,7 @@ static void r600_set_framebuffer_state(struct pipe_context *ctx,
>>                 r600_cb(rctx, rstate, state, i);
>>         }
>>         if (state->zsbuf) {
>> +               rctx->flags |= R600_CONTEXT_DB_FLUSH;
>>                 r600_db(rctx, rstate, state);
>>         }
>>
>> @@ -1962,14 +1969,8 @@ void r600_adjust_gprs(struct r600_context *rctx)
>>         unsigned tmp;
>>         int diff;
>>
>> -       /* XXX: Following call moved from r600_bind_[ps|vs]_shader,
>> -        * it seems eg+ doesn't need it, r6xx/7xx probably need it only for
>> -        * adjusting the GPR allocation?
>> -        * Do we need this if we aren't really changing config below? */
>> -       r600_inval_shader_cache(rctx);
>> -
>> -       if (rctx->ps_shader->current->shader.bc.ngpr > rctx->default_ps_gprs)
>> -       {
>> +       rctx->flags |= R600_CONTEXT_SH_FLUSH;
>> +       if (rctx->ps_shader->current->shader.bc.ngpr > rctx->default_ps_gprs) {
>>                 diff = rctx->ps_shader->current->shader.bc.ngpr - rctx->default_ps_gprs;
>>                 num_vs_gprs -= diff;
>>                 num_ps_gprs += diff;
>> diff --git a/src/gallium/drivers/r600/r600_state_common.c b/src/gallium/drivers/r600/r600_state_common.c
>> index 3c42a44..c9fd362 100644
>> --- a/src/gallium/drivers/r600/r600_state_common.c
>> +++ b/src/gallium/drivers/r600/r600_state_common.c
>> @@ -56,27 +56,6 @@ void r600_release_command_buffer(struct r600_command_buffer *cb)
>>         FREE(cb->buf);
>>  }
>>
>> -static void r600_emit_surface_sync(struct r600_context *rctx, struct r600_atom *atom)
>> -{
>> -       struct radeon_winsys_cs *cs = rctx->cs;
>> -       struct r600_surface_sync_cmd *a = (struct r600_surface_sync_cmd*)atom;
>> -
>> -       cs->buf[cs->cdw++] = PKT3(PKT3_SURFACE_SYNC, 3, 0);
>> -       cs->buf[cs->cdw++] = a->flush_flags;  /* CP_COHER_CNTL */
>> -       cs->buf[cs->cdw++] = 0xffffffff;      /* CP_COHER_SIZE */
>> -       cs->buf[cs->cdw++] = 0;               /* CP_COHER_BASE */
>> -       cs->buf[cs->cdw++] = 0x0000000A;      /* POLL_INTERVAL */
>> -
>> -       a->flush_flags = 0;
>> -}
>> -
>> -static void r600_emit_r6xx_flush_and_inv(struct r600_context *rctx, struct r600_atom *atom)
>> -{
>> -       struct radeon_winsys_cs *cs = rctx->cs;
>> -       cs->buf[cs->cdw++] = PKT3(PKT3_EVENT_WRITE, 0, 0);
>> -       cs->buf[cs->cdw++] = EVENT_TYPE(EVENT_TYPE_CACHE_FLUSH_AND_INV_EVENT) | EVENT_INDEX(0);
>> -}
>> -
>>  void r600_init_atom(struct r600_atom *atom,
>>                     void (*emit)(struct r600_context *ctx, struct r600_atom *state),
>>                     unsigned num_dw, enum r600_atom_flags flags)
>> @@ -86,37 +65,11 @@ void r600_init_atom(struct r600_atom *atom,
>>         atom->flags = flags;
>>  }
>>
>> -void r600_init_common_atoms(struct r600_context *rctx)
>> -{
>> -       r600_init_atom(&rctx->surface_sync_cmd.atom,    r600_emit_surface_sync,         5, EMIT_EARLY);
>> -       r600_init_atom(&rctx->r6xx_flush_and_inv_cmd,   r600_emit_r6xx_flush_and_inv,   2, EMIT_EARLY);
>> -}
>> -
>> -unsigned r600_get_cb_flush_flags(struct r600_context *rctx)
>> -{
>> -       unsigned flags = 0;
>> -
>> -       if (rctx->framebuffer.nr_cbufs) {
>> -               flags |= S_0085F0_CB_ACTION_ENA(1) |
>> -                        (((1 << rctx->framebuffer.nr_cbufs) - 1) << S_0085F0_CB0_DEST_BASE_ENA_SHIFT);
>> -       }
>> -
>> -       /* Workaround for broken flushing on some R6xx chipsets. */
>> -       if (rctx->family == CHIP_RV670 ||
>> -           rctx->family == CHIP_RS780 ||
>> -           rctx->family == CHIP_RS880) {
>> -               flags |=  S_0085F0_CB1_DEST_BASE_ENA(1) |
>> -                         S_0085F0_DEST_BASE_0_ENA(1);
>> -       }
>> -       return flags;
>> -}
>> -
>>  void r600_texture_barrier(struct pipe_context *ctx)
>>  {
>>         struct r600_context *rctx = (struct r600_context *)ctx;
>>
>> -       rctx->surface_sync_cmd.flush_flags |= S_0085F0_TC_ACTION_ENA(1) | r600_get_cb_flush_flags(rctx);
>> -       r600_atom_dirty(rctx, &rctx->surface_sync_cmd.atom);
>> +       rctx->flags |= R600_CONTEXT_DRAW_FLUSH | R600_CONTEXT_CB_FLUSH | R600_CONTEXT_TEX_FLUSH;
>>  }
>>
>>  static bool r600_conv_pipe_prim(unsigned pprim, unsigned *prim)
>> @@ -368,7 +321,7 @@ void r600_bind_vertex_elements(struct pipe_context *ctx, void *state)
>>
>>         rctx->vertex_elements = v;
>>         if (v) {
>> -               r600_inval_shader_cache(rctx);
>> +               rctx->flags |= R600_CONTEXT_SH_FLUSH;
>>
>>                 rctx->states[v->rstate.id] = &v->rstate;
>>                 r600_context_pipe_state_set(rctx, &v->rstate);
>> @@ -412,9 +365,9 @@ void r600_set_vertex_buffers(struct pipe_context *ctx, unsigned count,
>>
>>         util_copy_vertex_buffers(rctx->vertex_buffer, &rctx->nr_vertex_buffers, buffers, count);
>>
>> -       r600_inval_vertex_cache(rctx);
>> +       rctx->flags |= R600_CONTEXT_VTX_FLUSH;
>>         state->atom.num_dw = (rctx->chip_class >= EVERGREEN ? 12 : 11) *
>> -                                          rctx->nr_vertex_buffers;
>> +                            rctx->nr_vertex_buffers;
>>         for (i = 0 ; i < rctx->nr_vertex_buffers; i++) {
>>                 state->dirty_mask |= 1 << i;
>>         }
>> @@ -523,6 +476,9 @@ static int r600_shader_select(struct pipe_context *ctx,
>>         if (dirty)
>>                 *dirty = 1;
>>
>> +       /* we are changing shader need a flush */
>> +       rctx->flags |= R600_CONTEXT_SH_FLUSH;
>> +
>>         shader->next_variant = sel->current;
>>         sel->current = shader;
>>
>> @@ -667,7 +623,7 @@ static void r600_update_alpha_ref(struct r600_context *rctx)
>>
>>  void r600_constant_buffers_dirty(struct r600_context *rctx, struct r600_constbuf_state *state)
>>  {
>> -       r600_inval_shader_cache(rctx);
>> +       rctx->flags |= R600_CONTEXT_SH_FLUSH;
>>         state->atom.num_dw = rctx->chip_class >= EVERGREEN ? util_bitcount(state->dirty_mask)*20
>>                                                            : util_bitcount(state->dirty_mask)*19;
>>         r600_atom_dirty(rctx, &state->atom);
>> @@ -893,6 +849,12 @@ void r600_draw_vbo(struct pipe_context *ctx, const struct pipe_draw_info *dinfo)
>>
>>         r600_update_derived_state(rctx);
>>
>> +       if (rctx->chip_class >= EVERGREEN) {
>> +               evergreen_flush_emit(rctx);
>> +       } else {
>> +               r600_flush_emit(rctx);
>> +       }
>> +
>>         if (info.indexed) {
>>                 /* Initialize the index buffer struct. */
>>                 pipe_resource_reference(&ib.buffer, rctx->index_buffer.buffer);
>> @@ -999,7 +961,7 @@ void r600_draw_vbo(struct pipe_context *ctx, const struct pipe_draw_info *dinfo)
>>                                         (info.count_from_stream_output ? S_0287F0_USE_OPAQUE(1) : 0);
>>         }
>>
>> -       rctx->flags |= R600_CONTEXT_DST_CACHES_DIRTY | R600_CONTEXT_DRAW_PENDING;
>> +       rctx->flags |= R600_CONTEXT_DRAW_PENDING;
>>
>>         /* Set the depth buffer as dirty. */
>>         if (rctx->framebuffer.zsbuf) {
>> --
>> 1.7.10.4
>>
>> _______________________________________________
>> mesa-dev mailing list
>> mesa-dev at lists.freedesktop.org
>> http://lists.freedesktop.org/mailman/listinfo/mesa-dev


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