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authorAlyssa Rosenzweig <[email protected]>2019-07-01 14:46:43 -0700
committerAlyssa Rosenzweig <[email protected]>2019-07-10 06:12:03 -0700
commitdc69d3bf8f00b956424094a52cb3d0c6125efaaa (patch)
tree25bda5f70db733ee5bb0b416563a346679c3500a /src/gallium
parentd151319a3d591e7ac157f8e3ea070f2569c73b51 (diff)
panfrost/midgard: Move scale from MIR to NIR
This begins the process of removing blend shader specific MIR into a more general NIR lowering pass for formats. Signed-off-by: Alyssa Rosenzweig <[email protected]>
Diffstat (limited to 'src/gallium')
-rw-r--r--src/gallium/drivers/panfrost/midgard/midgard_compile.c13
-rw-r--r--src/gallium/drivers/panfrost/midgard/nir_lower_framebuffer.c4
2 files changed, 7 insertions, 10 deletions
diff --git a/src/gallium/drivers/panfrost/midgard/midgard_compile.c b/src/gallium/drivers/panfrost/midgard/midgard_compile.c
index 5559aa44454..2c304d9066e 100644
--- a/src/gallium/drivers/panfrost/midgard/midgard_compile.c
+++ b/src/gallium/drivers/panfrost/midgard/midgard_compile.c
@@ -2324,20 +2324,18 @@ emit_fragment_epilogue(compiler_context *ctx)
static void
emit_blend_epilogue(compiler_context *ctx)
{
- /* vmul.fmul.none.fulllow hr48, r0, #255 */
+ /* fmov hr48, [...], r0*/
midgard_instruction scale = {
.type = TAG_ALU_4,
.unit = UNIT_VMUL,
- .inline_constant = _mesa_float_to_half(255.0),
.ssa_args = {
- .src0 = SSA_FIXED_REGISTER(0),
- .src1 = SSA_UNUSED_0,
+ .src0 = SSA_FIXED_REGISTER(24),
+ .src1 = SSA_FIXED_REGISTER(0),
.dest = SSA_FIXED_REGISTER(24),
- .inline_constant = true
},
.alu = {
- .op = midgard_alu_op_fmul,
+ .op = midgard_alu_op_fmov,
.reg_mode = midgard_reg_mode_32,
.dest_override = midgard_dest_override_lower,
.mask = 0xFF,
@@ -2348,7 +2346,7 @@ emit_blend_epilogue(compiler_context *ctx)
emit_mir_instruction(ctx, scale);
- /* vadd.f2u_rte.pos.low hr0, hr48, #0 */
+ /* vadd.f2u_rte qr0, hr48, #0 */
midgard_vector_alu_src alu_src = blank_alu_src;
alu_src.half = true;
@@ -2365,7 +2363,6 @@ emit_blend_epilogue(compiler_context *ctx)
.op = midgard_alu_op_f2u_rte,
.reg_mode = midgard_reg_mode_16,
.dest_override = midgard_dest_override_lower,
- .outmod = midgard_outmod_pos,
.mask = 0xF,
.src1 = vector_alu_srco_unsigned(alu_src),
.src2 = vector_alu_srco_unsigned(blank_alu_src),
diff --git a/src/gallium/drivers/panfrost/midgard/nir_lower_framebuffer.c b/src/gallium/drivers/panfrost/midgard/nir_lower_framebuffer.c
index 67fdf012c04..115fe5f09dd 100644
--- a/src/gallium/drivers/panfrost/midgard/nir_lower_framebuffer.c
+++ b/src/gallium/drivers/panfrost/midgard/nir_lower_framebuffer.c
@@ -44,8 +44,8 @@
static nir_ssa_def *
nir_float_to_native(nir_builder *b, nir_ssa_def *c_float)
{
- /* TODO */
- return c_float;
+ nir_ssa_def *scaled = nir_fmul_imm(b, nir_fsat(b, c_float), 255.0);
+ return scaled;
}
void