From: Dave Airlie <airlied@redhat.com>
Date: Tue, 27 Aug 2019 05:28:26 +0000 (+1000)
Subject: llvmpipe: add compute shader parameter fetching support
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=4e709705076324ddc69e26619620752dc3ea094b;p=mesa.git

llvmpipe: add compute shader parameter fetching support

Reviewed-by: Roland Scheidegger <sroland@vmware.com>
---

diff --git a/src/gallium/drivers/llvmpipe/lp_screen.c b/src/gallium/drivers/llvmpipe/lp_screen.c
index 758960514fc..05201bf83fb 100644
--- a/src/gallium/drivers/llvmpipe/lp_screen.c
+++ b/src/gallium/drivers/llvmpipe/lp_screen.c
@@ -402,6 +402,7 @@ llvmpipe_get_shader_param(struct pipe_screen *screen,
    switch(shader)
    {
    case PIPE_SHADER_FRAGMENT:
+   case PIPE_SHADER_COMPUTE:
       switch (param) {
       default:
          return gallivm_get_shader_param(param);
@@ -459,6 +460,58 @@ llvmpipe_get_paramf(struct pipe_screen *screen, enum pipe_capf param)
    return 0.0;
 }
 
+static int
+llvmpipe_get_compute_param(struct pipe_screen *_screen,
+                           enum pipe_shader_ir ir_type,
+                           enum pipe_compute_cap param,
+                           void *ret)
+{
+   switch (param) {
+   case PIPE_COMPUTE_CAP_IR_TARGET:
+      return 0;
+   case PIPE_COMPUTE_CAP_MAX_GRID_SIZE:
+      if (ret) {
+         uint64_t *grid_size = ret;
+         grid_size[0] = 65535;
+         grid_size[1] = 65535;
+         grid_size[2] = 65535;
+      }
+      return 3 * sizeof(uint64_t) ;
+   case PIPE_COMPUTE_CAP_MAX_BLOCK_SIZE:
+      if (ret) {
+         uint64_t *block_size = ret;
+         block_size[0] = 1024;
+         block_size[1] = 1024;
+         block_size[2] = 1024;
+      }
+      return 3 * sizeof(uint64_t);
+   case PIPE_COMPUTE_CAP_MAX_THREADS_PER_BLOCK:
+      if (ret) {
+         uint64_t *max_threads_per_block = ret;
+         *max_threads_per_block = 1024;
+      }
+      return sizeof(uint64_t);
+   case PIPE_COMPUTE_CAP_MAX_LOCAL_SIZE:
+      if (ret) {
+         uint64_t *max_local_size = ret;
+         *max_local_size = 32768;
+      }
+      return sizeof(uint64_t);
+   case PIPE_COMPUTE_CAP_GRID_DIMENSION:
+   case PIPE_COMPUTE_CAP_MAX_GLOBAL_SIZE:
+   case PIPE_COMPUTE_CAP_MAX_PRIVATE_SIZE:
+   case PIPE_COMPUTE_CAP_MAX_INPUT_SIZE:
+   case PIPE_COMPUTE_CAP_MAX_MEM_ALLOC_SIZE:
+   case PIPE_COMPUTE_CAP_MAX_CLOCK_FREQUENCY:
+   case PIPE_COMPUTE_CAP_MAX_COMPUTE_UNITS:
+   case PIPE_COMPUTE_CAP_IMAGES_SUPPORTED:
+   case PIPE_COMPUTE_CAP_SUBGROUP_SIZE:
+   case PIPE_COMPUTE_CAP_ADDRESS_BITS:
+   case PIPE_COMPUTE_CAP_MAX_VARIABLE_THREADS_PER_BLOCK:
+      break;
+   }
+   return 0;
+}
 
 /**
  * Query format support for creating a texture, drawing surface, etc.
@@ -695,6 +748,7 @@ llvmpipe_create_screen(struct sw_winsys *winsys)
    screen->base.get_device_vendor = llvmpipe_get_vendor; // TODO should be the CPU vendor
    screen->base.get_param = llvmpipe_get_param;
    screen->base.get_shader_param = llvmpipe_get_shader_param;
+   screen->base.get_compute_param = llvmpipe_get_compute_param;
    screen->base.get_paramf = llvmpipe_get_paramf;
    screen->base.is_format_supported = llvmpipe_is_format_supported;