On Mon, Feb 12, 2018 at 01:41:44PM -0800, Jason Ekstrand wrote:
> The previous code was trying to avoid non-existent layers by taking a
> MAX with anv_image_aux_layers. Unfortunately, it wasn't taking into
^
MIN
With that fixed, this patch is
Reviewed-by: Nanley Chery <nanley.g.ch...@intel.com>
> account that layer_count starts at base_layer which may not be zero.
> Instead, we need to subtract base_layer from anv_image_aux_layers with
> a guard against roll-over.
>
> Cc: Nanley Chery <nanley.g.ch...@intel.com>
> Fixes: de3be6180169f9 "anv/cmd_buffer: Rework aux tracking"
> ---
> src/intel/vulkan/genX_cmd_buffer.c | 12 ++++++++++--
> 1 file changed, 10 insertions(+), 2 deletions(-)
>
> diff --git a/src/intel/vulkan/genX_cmd_buffer.c
> b/src/intel/vulkan/genX_cmd_buffer.c
> index 9a2ffb4..99854eb 100644
> --- a/src/intel/vulkan/genX_cmd_buffer.c
> +++ b/src/intel/vulkan/genX_cmd_buffer.c
> @@ -931,8 +931,12 @@ transition_color_buffer(struct anv_cmd_buffer
> *cmd_buffer,
> if (image->samples == 1) {
> for (uint32_t l = 0; l < level_count; l++) {
> const uint32_t level = base_level + l;
> +
> + uint32_t aux_layers = anv_image_aux_layers(image, aspect, level);
> + if (base_layer >= aux_layers)
> + break; /* We will only get fewer layers as level increases */
> uint32_t level_layer_count =
> - MIN2(layer_count, anv_image_aux_layers(image, aspect, level));
> + MIN2(layer_count, aux_layers - base_layer);
>
> anv_image_ccs_op(cmd_buffer, image, aspect, level,
> base_layer, level_layer_count,
> @@ -1020,8 +1024,12 @@ transition_color_buffer(struct anv_cmd_buffer
> *cmd_buffer,
>
> for (uint32_t l = 0; l < level_count; l++) {
> uint32_t level = base_level + l;
> +
> + uint32_t aux_layers = anv_image_aux_layers(image, aspect, level);
> + if (base_layer >= aux_layers)
> + break; /* We will only get fewer layers as level increases */
> uint32_t level_layer_count =
> - MIN2(layer_count, anv_image_aux_layers(image, aspect, level));
> + MIN2(layer_count, aux_layers - base_layer);
>
> for (uint32_t a = 0; a < level_layer_count; a++) {
> uint32_t array_layer = base_layer + a;
> --
> 2.5.0.400.gff86faf
>
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