intel: Use Clear Color struct size.

The size of the clear color struct (expected by the hardware) is 8
dwords (isl_dev.ss.clear_value_state_size here). But we still need to
track the size of the clear color, used when memcopying it to/from the
state buffer. For that we keep isl_dev.ss.clear_value_size.

v4:
 - Add struct to gen11 too (Jason, Jordan)
 - Add field for Converted Clear Color to gen11 (Jason)
 - Add clear_color_state_offset to differentiate from
   clear_value_offset.
 - Fix all the places where clear_value_size was used.

v5 (Jason):
 - Split genxml changes to another commit.
 - Remove unnecessary gen checks.
 - Bring back missing offset increment to init_fast_clear_color().

v6 (Jason):
 - On init_fast_clear_color, change:
   addr.offset += 4 => sdi.Address.offset += i * 4
 - Use GEN_GEN instead of GEN_VERSIONx10.

[jordan.l.justen@intel.com: isl_device_init changes]
Signed-off-by: Rafael Antognolli <rafael.antognolli@intel.com>
Signed-off-by: Jordan Justen <jordan.l.justen@intel.com>
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>

src/intel/blorp/blorp_genX_exec.h

@@ -310,10 +310,11 @@ blorp_emit_vertex_buffers(struct blorp_batch *batch,
 
    uint32_t num_vbs = 2;
    if (params->dst_clear_color_as_input) {
+      const unsigned clear_color_size =
+         GEN_GEN < 10 ? batch->blorp->isl_dev->ss.clear_value_size : 4 * 4;
       blorp_fill_vertex_buffer_state(batch, vb, num_vbs++,
                                      params->dst.clear_color_addr,
-                                     batch->blorp->isl_dev->ss.clear_value_size,
-                                     0);
+                                     clear_color_size, 0);
    }
 
    const unsigned num_dwords = 1 + num_vbs * GENX(VERTEX_BUFFER_STATE_length);

src/intel/isl/isl.c

@@ -73,6 +73,10 @@ isl_device_init(struct isl_device *dev,
    dev->ss.size = RENDER_SURFACE_STATE_length(info) * 4;
    dev->ss.align = isl_align(dev->ss.size, 32);
 
+   dev->ss.clear_color_state_size = CLEAR_COLOR_length(info) * 4;
+   dev->ss.clear_color_state_offset =
+      RENDER_SURFACE_STATE_ClearValueAddress_start(info) / 32 * 4;
+
    dev->ss.clear_value_size =
       isl_align(RENDER_SURFACE_STATE_RedClearColor_bits(info) +
                 RENDER_SURFACE_STATE_GreenClearColor_bits(info) +

src/intel/isl/isl.h

@@ -963,6 +963,12 @@ struct isl_device {
       uint8_t aux_addr_offset;
 
       /* Rounded up to the nearest dword to simplify GPU memcpy operations. */
+
+      /* size of the state buffer used to store the clear color + extra
+       * additional space used by the hardware */
+      uint8_t clear_color_state_size;
+      uint8_t clear_color_state_offset;
+      /* size of the clear color itself - used to copy it to/from a BO */
       uint8_t clear_value_size;
       uint8_t clear_value_offset;
    } ss;

src/intel/vulkan/anv_image.c

@@ -267,8 +267,12 @@ add_aux_state_tracking_buffer(struct anv_image *image,
              (image->planes[plane].offset + image->planes[plane].size));
    }
 
+   const unsigned clear_color_state_size = device->info.gen >= 10 ?
+      device->isl_dev.ss.clear_color_state_size :
+      device->isl_dev.ss.clear_value_size;
+
    /* Clear color and fast clear type */
-   unsigned state_size = device->isl_dev.ss.clear_value_size + 4;
+   unsigned state_size = clear_color_state_size + 4;
 
    /* We only need to track compression on CCS_E surfaces. */
    if (image->planes[plane].aux_usage == ISL_AUX_USAGE_CCS_E) {

src/intel/vulkan/anv_private.h

@@ -2614,7 +2614,11 @@ anv_image_get_fast_clear_type_addr(const struct anv_device *device,
 {
    struct anv_address addr =
       anv_image_get_clear_color_addr(device, image, aspect);
-   addr.offset += device->isl_dev.ss.clear_value_size;
+
+   const unsigned clear_color_state_size = device->info.gen >= 10 ?
+      device->isl_dev.ss.clear_color_state_size :
+      device->isl_dev.ss.clear_value_size;
+   addr.offset += clear_color_state_size;
    return addr;
 }
 

src/intel/vulkan/genX_cmd_buffer.c

@@ -826,35 +826,36 @@ init_fast_clear_color(struct anv_cmd_buffer *cmd_buffer,
     */
    struct anv_address addr =
       anv_image_get_clear_color_addr(cmd_buffer->device, image, aspect);
-   unsigned i = 0;
-   for (; i < cmd_buffer->device->isl_dev.ss.clear_value_size; i += 4) {
-      anv_batch_emit(&cmd_buffer->batch, GENX(MI_STORE_DATA_IMM), sdi) {
-         sdi.Address = addr;
 
-         if (GEN_GEN >= 9) {
+   if (GEN_GEN >= 9) {
+      for (unsigned i = 0; i < 4; i++) {
+         anv_batch_emit(&cmd_buffer->batch, GENX(MI_STORE_DATA_IMM), sdi) {
+            sdi.Address = addr;
+            sdi.Address.offset += i * 4;
             /* MCS buffers on SKL+ can only have 1/0 clear colors. */
             assert(image->samples > 1);
             sdi.ImmediateData = 0;
-         } else if (GEN_VERSIONx10 >= 75) {
+         }
+      }
+   } else {
+      anv_batch_emit(&cmd_buffer->batch, GENX(MI_STORE_DATA_IMM), sdi) {
+         sdi.Address = addr;
+         if (GEN_GEN >= 8 || GEN_IS_HASWELL) {
             /* Pre-SKL, the dword containing the clear values also contains
              * other fields, so we need to initialize those fields to match the
              * values that would be in a color attachment.
              */
-            assert(i == 0);
             sdi.ImmediateData = ISL_CHANNEL_SELECT_RED   << 25 |
                                 ISL_CHANNEL_SELECT_GREEN << 22 |
                                 ISL_CHANNEL_SELECT_BLUE  << 19 |
                                 ISL_CHANNEL_SELECT_ALPHA << 16;
-         }  else if (GEN_VERSIONx10 == 70) {
+         } else if (GEN_GEN == 7) {
             /* On IVB, the dword containing the clear values also contains
              * other fields that must be zero or can be zero.
              */
-            assert(i == 0);
             sdi.ImmediateData = 0;
          }
       }
-
-      addr.offset += 4;
    }
 }