path: root/radeonsi: update buffer descriptors in all contexts after buffer invalidation 78e35df52aa2f7d770f929a0866a0faa89c261a9.patch

From 78e35df52aa2f7d770f929a0866a0faa89c261a9 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Marek=20Ol=C5=A1=C3=A1k?= <marek.olsak@amd.com>
Date: Fri, 10 May 2019 01:14:07 -0400
Subject: radeonsi: update buffer descriptors in all contexts after buffer
 invalidation

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=108824

Cc: 19.1 <mesa-stable@lists.freedesktop.org>
---
 src/gallium/drivers/radeonsi/si_descriptors.c | 94 ++++++++++++++++++---------
 src/gallium/drivers/radeonsi/si_pipe.h        |  2 +
 src/gallium/drivers/radeonsi/si_state_draw.c  |  9 ++-
 3 files changed, 72 insertions(+), 33 deletions(-)

diff --git a/src/gallium/drivers/radeonsi/si_descriptors.c b/src/gallium/drivers/radeonsi/si_descriptors.c
index 14c1306..501f4c1 100644
--- a/src/gallium/drivers/radeonsi/si_descriptors.c
+++ b/src/gallium/drivers/radeonsi/si_descriptors.c
@@ -1573,7 +1573,9 @@ void si_update_needs_color_decompress_masks(struct si_context *sctx)
 
 /* BUFFER DISCARD/INVALIDATION */
 
-/** Reset descriptors of buffer resources after \p buf has been invalidated. */
+/* Reset descriptors of buffer resources after \p buf has been invalidated.
+ * If buf == NULL, reset all descriptors.
+ */
 static void si_reset_buffer_resources(struct si_context *sctx,
 				      struct si_buffer_resources *buffers,
 				      unsigned descriptors_idx,
@@ -1586,13 +1588,15 @@ static void si_reset_buffer_resources(struct si_context *sctx,
 
 	while (mask) {
 		unsigned i = u_bit_scan(&mask);
-		if (buffers->buffers[i] == buf) {
-			si_set_buf_desc_address(si_resource(buf), buffers->offsets[i],
+		struct pipe_resource *buffer = buffers->buffers[i];
+
+		if (buffer && (!buf || buffer == buf)) {
+			si_set_buf_desc_address(si_resource(buffer), buffers->offsets[i],
 						descs->list + i*4);
 			sctx->descriptors_dirty |= 1u << descriptors_idx;
 
 			radeon_add_to_gfx_buffer_list_check_mem(sctx,
-								si_resource(buf),
+								si_resource(buffer),
 								buffers->writable_mask & (1u << i) ?
 									RADEON_USAGE_READWRITE :
 									RADEON_USAGE_READ,
@@ -1601,9 +1605,12 @@ static void si_reset_buffer_resources(struct si_context *sctx,
 	}
 }
 
-/* Update all resource bindings where the buffer is bound, including
+/* Update all buffer bindings where the buffer is bound, including
  * all resource descriptors. This is invalidate_buffer without
- * the invalidation. */
+ * the invalidation.
+ *
+ * If buf == NULL, update all buffer bindings.
+ */
 void si_rebind_buffer(struct si_context *sctx, struct pipe_resource *buf)
 {
 	struct si_resource *buffer = si_resource(buf);
@@ -1618,7 +1625,10 @@ void si_rebind_buffer(struct si_context *sctx, struct pipe_resource *buf)
 	 */
 
 	/* Vertex buffers. */
-	if (buffer->bind_history & PIPE_BIND_VERTEX_BUFFER) {
+	if (!buffer) {
+		if (num_elems)
+			sctx->vertex_buffers_dirty = true;
+	} else if (buffer->bind_history & PIPE_BIND_VERTEX_BUFFER) {
 		for (i = 0; i < num_elems; i++) {
 			int vb = sctx->vertex_elements->vertex_buffer_index[i];
 
@@ -1635,21 +1645,23 @@ void si_rebind_buffer(struct si_context *sctx, struct pipe_resource *buf)
 	}
 
 	/* Streamout buffers. (other internal buffers can't be invalidated) */
-	if (buffer->bind_history & PIPE_BIND_STREAM_OUTPUT) {
+	if (!buffer || buffer->bind_history & PIPE_BIND_STREAM_OUTPUT) {
 		for (i = SI_VS_STREAMOUT_BUF0; i <= SI_VS_STREAMOUT_BUF3; i++) {
 			struct si_buffer_resources *buffers = &sctx->rw_buffers;
 			struct si_descriptors *descs =
 				&sctx->descriptors[SI_DESCS_RW_BUFFERS];
+			struct pipe_resource *buffer = buffers->buffers[i];
 
-			if (buffers->buffers[i] != buf)
+			if (!buffer || (buf && buffer != buf))
 				continue;
 
-			si_set_buf_desc_address(si_resource(buf), buffers->offsets[i],
+			si_set_buf_desc_address(si_resource(buffer), buffers->offsets[i],
 						descs->list + i*4);
 			sctx->descriptors_dirty |= 1u << SI_DESCS_RW_BUFFERS;
 
 			radeon_add_to_gfx_buffer_list_check_mem(sctx,
-								buffer, RADEON_USAGE_WRITE,
+								si_resource(buffer),
+								RADEON_USAGE_WRITE,
 								RADEON_PRIO_SHADER_RW_BUFFER,
 								true);
 
@@ -1663,7 +1675,7 @@ void si_rebind_buffer(struct si_context *sctx, struct pipe_resource *buf)
 	}
 
 	/* Constant and shader buffers. */
-	if (buffer->bind_history & PIPE_BIND_CONSTANT_BUFFER) {
+	if (!buffer || buffer->bind_history & PIPE_BIND_CONSTANT_BUFFER) {
 		for (shader = 0; shader < SI_NUM_SHADERS; shader++)
 			si_reset_buffer_resources(sctx, &sctx->const_and_shader_buffers[shader],
 						  si_const_and_shader_buffer_descriptors_idx(shader),
@@ -1672,7 +1684,7 @@ void si_rebind_buffer(struct si_context *sctx, struct pipe_resource *buf)
 						  sctx->const_and_shader_buffers[shader].priority_constbuf);
 	}
 
-	if (buffer->bind_history & PIPE_BIND_SHADER_BUFFER) {
+	if (!buffer || buffer->bind_history & PIPE_BIND_SHADER_BUFFER) {
 		for (shader = 0; shader < SI_NUM_SHADERS; shader++)
 			si_reset_buffer_resources(sctx, &sctx->const_and_shader_buffers[shader],
 						  si_const_and_shader_buffer_descriptors_idx(shader),
@@ -1681,7 +1693,7 @@ void si_rebind_buffer(struct si_context *sctx, struct pipe_resource *buf)
 						  sctx->const_and_shader_buffers[shader].priority);
 	}
 
-	if (buffer->bind_history & PIPE_BIND_SAMPLER_VIEW) {
+	if (!buffer || buffer->bind_history & PIPE_BIND_SAMPLER_VIEW) {
 		/* Texture buffers - update bindings. */
 		for (shader = 0; shader < SI_NUM_SHADERS; shader++) {
 			struct si_samplers *samplers = &sctx->samplers[shader];
@@ -1691,26 +1703,28 @@ void si_rebind_buffer(struct si_context *sctx, struct pipe_resource *buf)
 
 			while (mask) {
 				unsigned i = u_bit_scan(&mask);
-				if (samplers->views[i]->texture == buf) {
+				struct pipe_resource *buffer = samplers->views[i]->texture;
+
+				if (buffer && (!buf || buffer == buf)) {
 					unsigned desc_slot = si_get_sampler_slot(i);
 
-					si_set_buf_desc_address(si_resource(buf),
+					si_set_buf_desc_address(si_resource(buffer),
 								samplers->views[i]->u.buf.offset,
 								descs->list + desc_slot * 16 + 4);
 					sctx->descriptors_dirty |=
 						1u << si_sampler_and_image_descriptors_idx(shader);
 
-					radeon_add_to_gfx_buffer_list_check_mem(sctx,
-									    buffer, RADEON_USAGE_READ,
-									    RADEON_PRIO_SAMPLER_BUFFER,
-									    true);
+					radeon_add_to_gfx_buffer_list_check_mem(
+						sctx, si_resource(buffer),
+						RADEON_USAGE_READ,
+						RADEON_PRIO_SAMPLER_BUFFER, true);
 				}
 			}
 		}
 	}
 
 	/* Shader images */
-	if (buffer->bind_history & PIPE_BIND_SHADER_IMAGE) {
+	if (!buffer || buffer->bind_history & PIPE_BIND_SHADER_IMAGE) {
 		for (shader = 0; shader < SI_NUM_SHADERS; ++shader) {
 			struct si_images *images = &sctx->images[shader];
 			struct si_descriptors *descs =
@@ -1719,21 +1733,22 @@ void si_rebind_buffer(struct si_context *sctx, struct pipe_resource *buf)
 
 			while (mask) {
 				unsigned i = u_bit_scan(&mask);
+				struct pipe_resource *buffer = images->views[i].resource;
 
-				if (images->views[i].resource == buf) {
+				if (buffer && (!buf || buffer == buf)) {
 					unsigned desc_slot = si_get_image_slot(i);
 
 					if (images->views[i].access & PIPE_IMAGE_ACCESS_WRITE)
 						si_mark_image_range_valid(&images->views[i]);
 
-					si_set_buf_desc_address(si_resource(buf),
+					si_set_buf_desc_address(si_resource(buffer),
 								images->views[i].u.buf.offset,
 								descs->list + desc_slot * 8 + 4);
 					sctx->descriptors_dirty |=
 						1u << si_sampler_and_image_descriptors_idx(shader);
 
 					radeon_add_to_gfx_buffer_list_check_mem(
-						sctx, buffer,
+						sctx, si_resource(buffer),
 						RADEON_USAGE_READWRITE,
 						RADEON_PRIO_SAMPLER_BUFFER, true);
 				}
@@ -1742,16 +1757,17 @@ void si_rebind_buffer(struct si_context *sctx, struct pipe_resource *buf)
 	}
 
 	/* Bindless texture handles */
-	if (buffer->texture_handle_allocated) {
+	if (!buffer || buffer->texture_handle_allocated) {
 		struct si_descriptors *descs = &sctx->bindless_descriptors;
 
 		util_dynarray_foreach(&sctx->resident_tex_handles,
 				      struct si_texture_handle *, tex_handle) {
 			struct pipe_sampler_view *view = (*tex_handle)->view;
 			unsigned desc_slot = (*tex_handle)->desc_slot;
+			struct pipe_resource *buffer = view->texture;
 
-			if (view->texture == buf) {
-				si_set_buf_desc_address(buffer,
+			if (buffer && (!buf || buffer == buf)) {
+				si_set_buf_desc_address(si_resource(buffer),
 							view->u.buf.offset,
 							descs->list +
 							desc_slot * 16 + 4);
@@ -1760,7 +1776,7 @@ void si_rebind_buffer(struct si_context *sctx, struct pipe_resource *buf)
 				sctx->bindless_descriptors_dirty = true;
 
 				radeon_add_to_gfx_buffer_list_check_mem(
-					sctx, buffer,
+					sctx, si_resource(buffer),
 					RADEON_USAGE_READ,
 					RADEON_PRIO_SAMPLER_BUFFER, true);
 			}
@@ -1768,19 +1784,20 @@ void si_rebind_buffer(struct si_context *sctx, struct pipe_resource *buf)
 	}
 
 	/* Bindless image handles */
-	if (buffer->image_handle_allocated) {
+	if (!buffer || buffer->image_handle_allocated) {
 		struct si_descriptors *descs = &sctx->bindless_descriptors;
 
 		util_dynarray_foreach(&sctx->resident_img_handles,
 				      struct si_image_handle *, img_handle) {
 			struct pipe_image_view *view = &(*img_handle)->view;
 			unsigned desc_slot = (*img_handle)->desc_slot;
+			struct pipe_resource *buffer = view->resource;
 
-			if (view->resource == buf) {
+			if (buffer && (!buf || buffer == buf)) {
 				if (view->access & PIPE_IMAGE_ACCESS_WRITE)
 					si_mark_image_range_valid(view);
 
-				si_set_buf_desc_address(buffer,
+				si_set_buf_desc_address(si_resource(buffer),
 							view->u.buf.offset,
 							descs->list +
 							desc_slot * 16 + 4);
@@ -1789,12 +1806,25 @@ void si_rebind_buffer(struct si_context *sctx, struct pipe_resource *buf)
 				sctx->bindless_descriptors_dirty = true;
 
 				radeon_add_to_gfx_buffer_list_check_mem(
-					sctx, buffer,
+					sctx, si_resource(buffer),
 					RADEON_USAGE_READWRITE,
 					RADEON_PRIO_SAMPLER_BUFFER, true);
 			}
 		}
 	}
+
+	if (buffer) {
+		/* Do the same for other contexts. They will invoke this function
+		 * with buffer == NULL.
+		 */
+		unsigned new_counter = p_atomic_inc_return(&sctx->screen->dirty_buf_counter);
+
+		/* Skip the update for the current context, because we have already updated
+		 * the buffer bindings.
+		 */
+		if (new_counter == sctx->last_dirty_buf_counter + 1)
+			sctx->last_dirty_buf_counter = new_counter;
+	}
 }
 
 static void si_upload_bindless_descriptor(struct si_context *sctx,
diff --git a/src/gallium/drivers/radeonsi/si_pipe.h b/src/gallium/drivers/radeonsi/si_pipe.h
index c3a62e8..db1f755 100644
--- a/src/gallium/drivers/radeonsi/si_pipe.h
+++ b/src/gallium/drivers/radeonsi/si_pipe.h
@@ -530,6 +530,7 @@ struct si_screen {
 	 * the counter before drawing and re-emit the states accordingly.
 	 */
 	unsigned			dirty_tex_counter;
+	unsigned			dirty_buf_counter;
 
 	/* Atomically increment this counter when an existing texture's
 	 * metadata is enabled or disabled in a way that requires changing
@@ -860,6 +861,7 @@ struct si_context {
 	unsigned			initial_gfx_cs_size;
 	unsigned			gpu_reset_counter;
 	unsigned			last_dirty_tex_counter;
+	unsigned			last_dirty_buf_counter;
 	unsigned			last_compressed_colortex_counter;
 	unsigned			last_num_draw_calls;
 	unsigned			flags; /* flush flags */
diff --git a/src/gallium/drivers/radeonsi/si_state_draw.c b/src/gallium/drivers/radeonsi/si_state_draw.c
index 7eb1dfb..dba9397 100644
--- a/src/gallium/drivers/radeonsi/si_state_draw.c
+++ b/src/gallium/drivers/radeonsi/si_state_draw.c
@@ -1421,7 +1421,7 @@ static void si_draw_vbo(struct pipe_context *ctx, const struct pipe_draw_info *i
 	struct si_context *sctx = (struct si_context *)ctx;
 	struct si_state_rasterizer *rs = sctx->queued.named.rasterizer;
 	struct pipe_resource *indexbuf = info->index.resource;
-	unsigned dirty_tex_counter;
+	unsigned dirty_tex_counter, dirty_buf_counter;
 	enum pipe_prim_type rast_prim, prim = info->mode;
 	unsigned index_size = info->index_size;
 	unsigned index_offset = info->indirect ? info->start * index_size : 0;
@@ -1464,6 +1464,13 @@ static void si_draw_vbo(struct pipe_context *ctx, const struct pipe_draw_info *i
 		si_update_all_texture_descriptors(sctx);
 	}
 
+	dirty_buf_counter = p_atomic_read(&sctx->screen->dirty_buf_counter);
+	if (unlikely(dirty_buf_counter != sctx->last_dirty_buf_counter)) {
+		sctx->last_dirty_buf_counter = dirty_buf_counter;
+		/* Rebind all buffers unconditionally. */
+		si_rebind_buffer(sctx, NULL);
+	}
+
 	si_decompress_textures(sctx, u_bit_consecutive(0, SI_NUM_GRAPHICS_SHADERS));
 
 	/* Set the rasterization primitive type.
-- 
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