ac/radeonsi: pass bindless bool to load_sampler_desc()

We also fix the base_index for bindless by using the driver
location.

Reviewed-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>

src/amd/common/ac_nir_to_llvm.c

@@ -3030,6 +3030,7 @@ static LLVMValueRef get_sampler_desc(struct ac_nir_context *ctx,
 	unsigned constant_index = 0;
 	unsigned descriptor_set;
 	unsigned base_index;
+	bool bindless = false;
 
 	if (!deref) {
 		assert(tex_instr && !image);
@@ -3063,14 +3064,20 @@ static LLVMValueRef get_sampler_desc(struct ac_nir_context *ctx,
 			tail = &child->deref;
 		}
 		descriptor_set = deref->var->data.descriptor_set;
-		base_index = deref->var->data.binding;
+
+		if (deref->var->data.bindless) {
+			bindless = deref->var->data.bindless;
+			base_index = deref->var->data.driver_location;
+		} else {
+			base_index = deref->var->data.binding;
+		}
 	}
 
 	return ctx->abi->load_sampler_desc(ctx->abi,
 					  descriptor_set,
 					  base_index,
 					  constant_index, index,
-					  desc_type, image, write);
+					  desc_type, image, write, bindless);
 }
 
 static void set_tex_fetch_args(struct ac_llvm_context *ctx,

src/amd/common/ac_shader_abi.h

@@ -157,7 +157,8 @@ struct ac_shader_abi {
 					  unsigned constant_index,
 					  LLVMValueRef index,
 					  enum ac_descriptor_type desc_type,
-					  bool image, bool write);
+					  bool image, bool write,
+					  bool bindless);
 
 	/**
 	 * Load a Vulkan-specific resource.

src/amd/vulkan/radv_nir_to_llvm.c

@@ -1699,7 +1699,8 @@ static LLVMValueRef radv_get_sampler_desc(struct ac_shader_abi *abi,
 					  unsigned constant_index,
 					  LLVMValueRef index,
 					  enum ac_descriptor_type desc_type,
-					  bool image, bool write)
+					  bool image, bool write,
+					  bool bindless)
 {
 	struct radv_shader_context *ctx = radv_shader_context_from_abi(abi);
 	LLVMValueRef list = ctx->descriptor_sets[descriptor_set];

src/gallium/drivers/radeonsi/si_shader_nir.c

@@ -784,7 +784,7 @@ si_nir_load_sampler_desc(struct ac_shader_abi *abi,
 		         unsigned descriptor_set, unsigned base_index,
 		         unsigned constant_index, LLVMValueRef dynamic_index,
 		         enum ac_descriptor_type desc_type, bool image,
-			 bool write)
+			 bool write, bool bindless)
 {
 	struct si_shader_context *ctx = si_shader_context_from_abi(abi);
 	LLVMBuilderRef builder = ctx->ac.builder;