From 72c0522db28b97d9f70b14f28c34f3f0d24b0885 Mon Sep 17 00:00:00 2001
From: Eric Anholt <eric@anholt.net>
Date: Wed, 10 Jun 2020 13:05:53 -0700
Subject: [PATCH] turnip: Add support for polygon fill modes.

Passes the new tests in dEQP-VK.rasterization.culling.*

Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/5650>
---
 src/freedreno/vulkan/tu_cmd_buffer.c |  2 --
 src/freedreno/vulkan/tu_device.c     |  2 +-
 src/freedreno/vulkan/tu_pipeline.c   | 11 +++++++++--
 src/freedreno/vulkan/tu_util.h       | 15 +++++++++++++++
 4 files changed, 25 insertions(+), 5 deletions(-)

diff --git a/src/freedreno/vulkan/tu_cmd_buffer.c b/src/freedreno/vulkan/tu_cmd_buffer.c
index 7371f9489ca..db251e0eb7b 100644
--- a/src/freedreno/vulkan/tu_cmd_buffer.c
+++ b/src/freedreno/vulkan/tu_cmd_buffer.c
@@ -968,9 +968,7 @@ tu6_init_hw(struct tu_cmd_buffer *cmd, struct tu_cs *cs)
    tu_cs_emit_write_reg(cs, REG_A6XX_VPC_UNKNOWN_9210, 0);
    tu_cs_emit_write_reg(cs, REG_A6XX_VPC_UNKNOWN_9211, 0);
    tu_cs_emit_write_reg(cs, REG_A6XX_VPC_UNKNOWN_9602, 0);
-   tu_cs_emit_write_reg(cs, REG_A6XX_PC_POLYGON_MODE, POLYMODE6_TRIANGLES);
    tu_cs_emit_write_reg(cs, REG_A6XX_PC_UNKNOWN_9E72, 0);
-   tu_cs_emit_write_reg(cs, REG_A6XX_VPC_POLYGON_MODE, POLYMODE6_TRIANGLES);
    tu_cs_emit_write_reg(cs, REG_A6XX_SP_TP_UNKNOWN_B309, 0x000000a2);
    tu_cs_emit_write_reg(cs, REG_A6XX_HLSQ_CONTROL_5_REG, 0xfc);
 
diff --git a/src/freedreno/vulkan/tu_device.c b/src/freedreno/vulkan/tu_device.c
index 994b8a22331..263c6576cf8 100644
--- a/src/freedreno/vulkan/tu_device.c
+++ b/src/freedreno/vulkan/tu_device.c
@@ -594,7 +594,7 @@ tu_GetPhysicalDeviceFeatures(VkPhysicalDevice physicalDevice,
       .drawIndirectFirstInstance = true,
       .depthClamp = true,
       .depthBiasClamp = false,
-      .fillModeNonSolid = false,
+      .fillModeNonSolid = true,
       .depthBounds = true,
       .wideLines = false,
       .largePoints = false,
diff --git a/src/freedreno/vulkan/tu_pipeline.c b/src/freedreno/vulkan/tu_pipeline.c
index b0fb1cc9e46..964d7438ab6 100644
--- a/src/freedreno/vulkan/tu_pipeline.c
+++ b/src/freedreno/vulkan/tu_pipeline.c
@@ -2194,10 +2194,10 @@ tu_pipeline_builder_parse_rasterization(struct tu_pipeline_builder *builder,
    const VkPipelineRasterizationStateCreateInfo *rast_info =
       builder->create_info->pRasterizationState;
 
-   assert(rast_info->polygonMode == VK_POLYGON_MODE_FILL);
+   enum a6xx_polygon_mode mode = tu6_polygon_mode(rast_info->polygonMode);
 
    struct tu_cs cs;
-   tu_cs_begin_sub_stream(&pipeline->cs, 7, &cs);
+   tu_cs_begin_sub_stream(&pipeline->cs, 11, &cs);
 
    tu_cs_emit_regs(&cs,
                    A6XX_GRAS_CL_CNTL(
@@ -2206,6 +2206,13 @@ tu_pipeline_builder_parse_rasterization(struct tu_pipeline_builder *builder,
                      .unk5 = rast_info->depthClampEnable,
                      .zero_gb_scale_z = 1,
                      .vp_clip_code_ignore = 1));
+
+   tu_cs_emit_regs(&cs,
+                   A6XX_VPC_POLYGON_MODE(.mode = mode));
+
+   tu_cs_emit_regs(&cs,
+                   A6XX_PC_POLYGON_MODE(.mode = mode));
+
    /* move to hw ctx init? */
    tu_cs_emit_regs(&cs, A6XX_GRAS_UNKNOWN_8001());
    tu_cs_emit_regs(&cs,
diff --git a/src/freedreno/vulkan/tu_util.h b/src/freedreno/vulkan/tu_util.h
index dcb4743dd90..fb914cf0ceb 100644
--- a/src/freedreno/vulkan/tu_util.h
+++ b/src/freedreno/vulkan/tu_util.h
@@ -234,4 +234,19 @@ tu6_pipe2depth(VkFormat format)
    }
 }
 
+static inline enum a6xx_polygon_mode
+tu6_polygon_mode(VkPolygonMode mode)
+{
+   switch (mode) {
+   case VK_POLYGON_MODE_POINT:
+      return POLYMODE6_POINTS;
+   case VK_POLYGON_MODE_LINE:
+      return POLYMODE6_LINES;
+   case VK_POLYGON_MODE_FILL:
+      return POLYMODE6_TRIANGLES;
+   default:
+      unreachable("bad polygon mode");
+   }
+}
+
 #endif /* TU_UTIL_H */
-- 
2.30.2