From 181e5bf29e06bd8ade7ebc21de056b9dc866fcc2 Mon Sep 17 00:00:00 2001 From: Eric Anholt Date: Wed, 6 Feb 2019 15:25:50 -0800 Subject: [PATCH] drm/vc4: Make sure to emit a tile coordinates between two MSAA loads. The HW only executes a load once the tile coordinates packet happens, and only tracks one at a time, so by emitting our two MSAA loads back to back we would end up with an undefined color or Z buffer. Fixes dEQP-EGL.functional.render.multi_context.gles2.rgb888_window Signed-off-by: Eric Anholt Reviewed-by: Paul Kocialkowski Cc: Maxime Ripard Link: https://patchwork.freedesktop.org/patch/msgid/20190206232550.12012-1-eric@anholt.net --- drivers/gpu/drm/vc4/vc4_render_cl.c | 23 +++++++++++------------ 1 file changed, 11 insertions(+), 12 deletions(-) diff --git a/drivers/gpu/drm/vc4/vc4_render_cl.c b/drivers/gpu/drm/vc4/vc4_render_cl.c index 273984f71ae2..3c918eeaf56e 100644 --- a/drivers/gpu/drm/vc4/vc4_render_cl.c +++ b/drivers/gpu/drm/vc4/vc4_render_cl.c @@ -148,6 +148,12 @@ static void emit_tile(struct vc4_exec_info *exec, } if (setup->zs_read) { + if (setup->color_read) { + /* Exec previous load. */ + vc4_tile_coordinates(setup, x, y); + vc4_store_before_load(setup); + } + if (args->zs_read.flags & VC4_SUBMIT_RCL_SURFACE_READ_IS_FULL_RES) { rcl_u8(setup, VC4_PACKET_LOAD_FULL_RES_TILE_BUFFER); @@ -156,12 +162,6 @@ static void emit_tile(struct vc4_exec_info *exec, &args->zs_read, x, y) | VC4_LOADSTORE_FULL_RES_DISABLE_COLOR); } else { - if (setup->color_read) { - /* Exec previous load. */ - vc4_tile_coordinates(setup, x, y); - vc4_store_before_load(setup); - } - rcl_u8(setup, VC4_PACKET_LOAD_TILE_BUFFER_GENERAL); rcl_u16(setup, args->zs_read.bits); rcl_u32(setup, setup->zs_read->paddr + @@ -291,16 +291,15 @@ static int vc4_create_rcl_bo(struct drm_device *dev, struct vc4_exec_info *exec, } } if (setup->zs_read) { + if (setup->color_read) { + loop_body_size += VC4_PACKET_TILE_COORDINATES_SIZE; + loop_body_size += VC4_PACKET_STORE_TILE_BUFFER_GENERAL_SIZE; + } + if (args->zs_read.flags & VC4_SUBMIT_RCL_SURFACE_READ_IS_FULL_RES) { loop_body_size += VC4_PACKET_LOAD_FULL_RES_TILE_BUFFER_SIZE; } else { - if (setup->color_read && - !(args->color_read.flags & - VC4_SUBMIT_RCL_SURFACE_READ_IS_FULL_RES)) { - loop_body_size += VC4_PACKET_TILE_COORDINATES_SIZE; - loop_body_size += VC4_PACKET_STORE_TILE_BUFFER_GENERAL_SIZE; - } loop_body_size += VC4_PACKET_LOAD_TILE_BUFFER_GENERAL_SIZE; } } -- 2.30.2