[Mesa-dev] [PATCH 01/12] i965: Assign PS kernel start pointers when we decide which kernels to use

Kristian Høgsberg krh at bitplanet.net
Mon Aug 11 17:29:31 PDT 2014


Right now we decide which kernels to use and the GRF start offsets in
one place and emit the kernel pointers later.  The logic of how to map
8, 16 and 32 kernels to kernel start pointers follows the same logic as which
GRF start offsets to use, so lets figure out these two things in one place.

Signed-off-by: Kristian Høgsberg <krh at bitplanet.net>
---
 src/mesa/drivers/dri/i965/gen6_wm_state.c | 16 ++++++++--------
 src/mesa/drivers/dri/i965/gen7_wm_state.c | 18 ++++++++++--------
 src/mesa/drivers/dri/i965/gen8_ps_state.c | 14 ++++++++------
 3 files changed, 26 insertions(+), 22 deletions(-)

diff --git a/src/mesa/drivers/dri/i965/gen6_wm_state.c b/src/mesa/drivers/dri/i965/gen6_wm_state.c
index 047e036..ebd8443 100644
--- a/src/mesa/drivers/dri/i965/gen6_wm_state.c
+++ b/src/mesa/drivers/dri/i965/gen6_wm_state.c
@@ -71,7 +71,7 @@ upload_wm_state(struct brw_context *brw)
    struct gl_context *ctx = &brw->ctx;
    const struct brw_fragment_program *fp =
       brw_fragment_program_const(brw->fragment_program);
-   uint32_t dw2, dw4, dw5, dw6;
+   uint32_t dw2, dw4, dw5, dw6, ksp0, ksp2;
 
    /* _NEW_BUFFERS */
    bool multisampled_fbo = ctx->DrawBuffer->Visual.samples > 1;
@@ -109,7 +109,7 @@ upload_wm_state(struct brw_context *brw)
       ADVANCE_BATCH();
    }
 
-   dw2 = dw4 = dw5 = dw6 = 0;
+   dw2 = dw4 = dw5 = dw6 = ksp2 = 0;
    dw4 |= GEN6_WM_STATISTICS_ENABLE;
    dw5 |= GEN6_WM_LINE_AA_WIDTH_1_0;
    dw5 |= GEN6_WM_LINE_END_CAP_AA_WIDTH_0_5;
@@ -151,14 +151,18 @@ upload_wm_state(struct brw_context *brw)
                  GEN6_WM_DISPATCH_START_GRF_SHIFT_0);
          dw4 |= (brw->wm.prog_data->dispatch_grf_start_reg_16 <<
                  GEN6_WM_DISPATCH_START_GRF_SHIFT_2);
+         ksp0 = brw->wm.base.prog_offset;
+         ksp2 = brw->wm.base.prog_offset + brw->wm.prog_data->prog_offset_16;
       } else
          dw4 |= (brw->wm.prog_data->dispatch_grf_start_reg_16 <<
                 GEN6_WM_DISPATCH_START_GRF_SHIFT_0);
+         ksp0 = brw->wm.base.prog_offset + brw->wm.prog_data->prog_offset_16;
    }
    else {
       dw5 |= GEN6_WM_8_DISPATCH_ENABLE;
       dw4 |= (brw->wm.prog_data->base.dispatch_grf_start_reg <<
               GEN6_WM_DISPATCH_START_GRF_SHIFT_0);
+      ksp0 = brw->wm.base.prog_offset;
    }
 
    /* CACHE_NEW_WM_PROG | _NEW_COLOR */
@@ -277,10 +281,7 @@ upload_wm_state(struct brw_context *brw)
 
    BEGIN_BATCH(9);
    OUT_BATCH(_3DSTATE_WM << 16 | (9 - 2));
-   if (brw->wm.prog_data->prog_offset_16 && min_inv_per_frag > 1)
-      OUT_BATCH(brw->wm.base.prog_offset + brw->wm.prog_data->prog_offset_16);
-   else
-      OUT_BATCH(brw->wm.base.prog_offset);
+   OUT_BATCH(ksp0);
    OUT_BATCH(dw2);
    if (brw->wm.prog_data->total_scratch) {
       OUT_RELOC(brw->wm.base.scratch_bo,
@@ -293,8 +294,7 @@ upload_wm_state(struct brw_context *brw)
    OUT_BATCH(dw5);
    OUT_BATCH(dw6);
    OUT_BATCH(0); /* kernel 1 pointer */
-   /* kernel 2 pointer */
-   OUT_BATCH(brw->wm.base.prog_offset + brw->wm.prog_data->prog_offset_16);
+   OUT_BATCH(ksp2);
    ADVANCE_BATCH();
 }
 
diff --git a/src/mesa/drivers/dri/i965/gen7_wm_state.c b/src/mesa/drivers/dri/i965/gen7_wm_state.c
index 27a3f44..c03d19d 100644
--- a/src/mesa/drivers/dri/i965/gen7_wm_state.c
+++ b/src/mesa/drivers/dri/i965/gen7_wm_state.c
@@ -139,11 +139,11 @@ static void
 upload_ps_state(struct brw_context *brw)
 {
    struct gl_context *ctx = &brw->ctx;
-   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 = ksp2 = 0;
 
    dw2 |=
       (ALIGN(brw->wm.base.sampler_count, 4) / 4) << GEN7_PS_SAMPLER_COUNT_SHIFT;
@@ -231,22 +231,24 @@ upload_ps_state(struct brw_context *brw)
                  GEN7_PS_DISPATCH_START_GRF_SHIFT_0);
          dw5 |= (brw->wm.prog_data->dispatch_grf_start_reg_16 <<
                  GEN7_PS_DISPATCH_START_GRF_SHIFT_2);
-      } else
+         ksp0 = brw->wm.base.prog_offset;
+         ksp2 = brw->wm.base.prog_offset + brw->wm.prog_data->prog_offset_16;
+      } else {
          dw5 |= (brw->wm.prog_data->dispatch_grf_start_reg_16 <<
                  GEN7_PS_DISPATCH_START_GRF_SHIFT_0);
+         ksp0 = brw->wm.base.prog_offset + brw->wm.prog_data->prog_offset_16;
+      }
    }
    else {
       dw4 |= GEN7_PS_8_DISPATCH_ENABLE;
       dw5 |= (brw->wm.prog_data->base.dispatch_grf_start_reg <<
               GEN7_PS_DISPATCH_START_GRF_SHIFT_0);
+      ksp0 = brw->wm.base.prog_offset;
    }
 
    BEGIN_BATCH(8);
    OUT_BATCH(_3DSTATE_PS << 16 | (8 - 2));
-   if (brw->wm.prog_data->prog_offset_16 && min_inv_per_frag > 1)
-      OUT_BATCH(brw->wm.base.prog_offset + brw->wm.prog_data->prog_offset_16);
-   else
-      OUT_BATCH(brw->wm.base.prog_offset);
+   OUT_BATCH(ksp0);
    OUT_BATCH(dw2);
    if (brw->wm.prog_data->total_scratch) {
       OUT_RELOC(brw->wm.base.scratch_bo,
@@ -258,7 +260,7 @@ upload_ps_state(struct brw_context *brw)
    OUT_BATCH(dw4);
    OUT_BATCH(dw5);
    OUT_BATCH(0); /* kernel 1 pointer */
-   OUT_BATCH(brw->wm.base.prog_offset + brw->wm.prog_data->prog_offset_16);
+   OUT_BATCH(ksp2);
    ADVANCE_BATCH();
 }
 
diff --git a/src/mesa/drivers/dri/i965/gen8_ps_state.c b/src/mesa/drivers/dri/i965/gen8_ps_state.c
index 3d6d7f0..f58d49c 100644
--- a/src/mesa/drivers/dri/i965/gen8_ps_state.c
+++ b/src/mesa/drivers/dri/i965/gen8_ps_state.c
@@ -134,7 +134,7 @@ static void
 upload_ps_state(struct brw_context *brw)
 {
    struct gl_context *ctx = &brw->ctx;
-   uint32_t dw3 = 0, dw6 = 0, dw7 = 0;
+   uint32_t dw3 = 0, dw6 = 0, dw7 = 0, ksp0, ksp2 = 0;
 
    /* Initialize the execution mask with VMask.  Otherwise, derivatives are
     * incorrect for subspans where some of the pixels are unlit.  We believe
@@ -203,22 +203,24 @@ upload_ps_state(struct brw_context *brw)
                  GEN7_PS_DISPATCH_START_GRF_SHIFT_0);
          dw7 |= (brw->wm.prog_data->dispatch_grf_start_reg_16 <<
                  GEN7_PS_DISPATCH_START_GRF_SHIFT_2);
+         ksp0 = brw->wm.base.prog_offset;
+         ksp2 = brw->wm.base.prog_offset + brw->wm.prog_data->prog_offset_16;
       } else {
          dw7 |= (brw->wm.prog_data->dispatch_grf_start_reg_16 <<
                  GEN7_PS_DISPATCH_START_GRF_SHIFT_0);
+
+         ksp0 = brw->wm.base.prog_offset + brw->wm.prog_data->prog_offset_16;
       }
    } else {
       dw6 |= GEN7_PS_8_DISPATCH_ENABLE;
       dw7 |= (brw->wm.prog_data->base.dispatch_grf_start_reg <<
               GEN7_PS_DISPATCH_START_GRF_SHIFT_0);
+      ksp0 = brw->wm.base.prog_offset;
    }
 
    BEGIN_BATCH(12);
    OUT_BATCH(_3DSTATE_PS << 16 | (12 - 2));
-   if (brw->wm.prog_data->prog_offset_16 && min_invocations_per_fragment > 1)
-      OUT_BATCH(brw->wm.base.prog_offset + brw->wm.prog_data->prog_offset_16);
-   else
-      OUT_BATCH(brw->wm.base.prog_offset);
+   OUT_BATCH(ksp0);
    OUT_BATCH(0);
    OUT_BATCH(dw3);
    if (brw->wm.prog_data->total_scratch) {
@@ -233,7 +235,7 @@ upload_ps_state(struct brw_context *brw)
    OUT_BATCH(dw7);
    OUT_BATCH(0); /* kernel 1 pointer */
    OUT_BATCH(0);
-   OUT_BATCH(brw->wm.base.prog_offset + brw->wm.prog_data->prog_offset_16);
+   OUT_BATCH(ksp2);
    OUT_BATCH(0);
    ADVANCE_BATCH();
 }
-- 
2.0.0



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