Re: [PATCH] drm/radeon: skip colorbuffer checking if COLOR_INFO.FORMAT is set to INVALID

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On Wed, Jan 8, 2014 at 12:16 PM, Marek Olšák <maraeo@xxxxxxxxx> wrote:
> From: Marek Olšák <marek.olsak@xxxxxxx>
>
> This fixes a bug which was causing rejections of valid GPU commands
> from userspace.
>
> Signed-off-by: Marek Olšák <marek.olsak@xxxxxxx>
> Cc: stable@xxxxxxxxxxxxxxx

Applied.  thanks!

Alex

> ---
>  drivers/gpu/drm/radeon/evergreen_cs.c | 5 ++++-
>  drivers/gpu/drm/radeon/r600_cs.c      | 5 ++++-
>  2 files changed, 8 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/gpu/drm/radeon/evergreen_cs.c b/drivers/gpu/drm/radeon/evergreen_cs.c
> index eb8ac31..c7cac07 100644
> --- a/drivers/gpu/drm/radeon/evergreen_cs.c
> +++ b/drivers/gpu/drm/radeon/evergreen_cs.c
> @@ -967,7 +967,10 @@ static int evergreen_cs_track_check(struct radeon_cs_parser *p)
>         if (track->cb_dirty) {
>                 tmp = track->cb_target_mask;
>                 for (i = 0; i < 8; i++) {
> -                       if ((tmp >> (i * 4)) & 0xF) {
> +                       u32 format = G_028C70_FORMAT(track->cb_color_info[i]);
> +
> +                       if (format != V_028C70_COLOR_INVALID &&
> +                           (tmp >> (i * 4)) & 0xF) {
>                                 /* at least one component is enabled */
>                                 if (track->cb_color_bo[i] == NULL) {
>                                         dev_warn(p->dev, "%s:%d mask 0x%08X | 0x%08X no cb for %d\n",
> diff --git a/drivers/gpu/drm/radeon/r600_cs.c b/drivers/gpu/drm/radeon/r600_cs.c
> index 5dceea6..56130bf 100644
> --- a/drivers/gpu/drm/radeon/r600_cs.c
> +++ b/drivers/gpu/drm/radeon/r600_cs.c
> @@ -749,7 +749,10 @@ static int r600_cs_track_check(struct radeon_cs_parser *p)
>                 }
>
>                 for (i = 0; i < 8; i++) {
> -                       if ((tmp >> (i * 4)) & 0xF) {
> +                       u32 format = G_0280A0_FORMAT(track->cb_color_info[i]);
> +
> +                       if (format != V_0280A0_COLOR_INVALID &&
> +                           (tmp >> (i * 4)) & 0xF) {
>                                 /* at least one component is enabled */
>                                 if (track->cb_color_bo[i] == NULL) {
>                                         dev_warn(p->dev, "%s:%d mask 0x%08X | 0x%08X no cb for %d\n",
> --
> 1.8.3.2
>
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