Re: [igt-dev] [PATCH RFC i-g-t 02/10] lib/igt_fb.c: Update tile sizes for GEN12 CCS

Radhakrishna Sripada
2019-10-29T21:23:20Z

On Wed, Sep 25, 2019 at 04:09:23PM +0300, Mika Kahola wrote:
> Update tile sizes for GEN12 CCS.
>
> BSpec: 2422
BSpec:47709 - Gen12
Reviewed-by: Radhakrishna Sripada <radhakrishna.sripada@intel.com>
>
> Signed-off-by: Mika Kahola <mika.kahola@intel.com>
> ---
> lib/igt_fb.c | 34 ++++++++++++++++++++++++++++++++--
> 1 file changed, 32 insertions(+), 2 deletions(-)
>
> diff --git a/lib/igt_fb.c b/lib/igt_fb.c
> index bad3eeca..826d9f70 100644
> --- a/lib/igt_fb.c
> +++ b/lib/igt_fb.c
> @@ -381,6 +381,33 @@ void igt_get_fb_tile_size(int fd, uint64_t modifier, int fb_bpp,
> *height_ret = 32;
> }
> break;
> + case LOCAL_I915_FORMAT_MOD_Y_TILED_GEN12_RC_CCS:
> + igt_require_intel(fd);
> + switch (fb_bpp) {
> + case 8:
> + *width_ret = 512;
> + *height_ret = 32;
> + break;
> + case 16:
> + *width_ret = 256;
> + *height_ret = 32;
> + break;
> + case 32:
> + *width_ret = 128;
> + *height_ret = 32;
> + break;
> + case 64:
> + *width_ret = 64;
> + *height_ret = 32;
> + break;
> + case 128:
> + *width_ret = 32;
> + *height_ret = 32;
> + break;
> + default:
> + igt_assert(false);
> + }
> + break;
> case LOCAL_I915_FORMAT_MOD_Yf_TILED:
> case LOCAL_I915_FORMAT_MOD_Yf_TILED_CCS:
> igt_require_intel(fd);
> @@ -435,8 +462,10 @@ void igt_get_fb_tile_size(int fd, uint64_t modifier, int fb_bpp,
>
> static bool is_ccs_modifier(uint64_t modifier)
> {
> - return modifier == LOCAL_I915_FORMAT_MOD_Y_TILED_CCS ||
> - modifier == LOCAL_I915_FORMAT_MOD_Yf_TILED_CCS;
> +
> + return modifier == I915_FORMAT_MOD_Y_TILED_GEN12_RC_CCS ||
> + modifier == I915_FORMAT_MOD_Y_TILED_CCS ||
> + modifier == I915_FORMAT_MOD_Yf_TILED_CCS;
> }
>
> static unsigned fb_plane_width(const struct igt_fb *fb, int plane)
> @@ -655,6 +684,7 @@ uint64_t igt_fb_mod_to_tiling(uint64_t modifier)
> return I915_TILING_X;
> case LOCAL_I915_FORMAT_MOD_Y_TILED:
> case LOCAL_I915_FORMAT_MOD_Y_TILED_CCS:
> + case LOCAL_I915_FORMAT_MOD_Y_TILED_GEN12_RC_CCS:
> return I915_TILING_Y;
> case LOCAL_I915_FORMAT_MOD_Yf_TILED:
> case LOCAL_I915_FORMAT_MOD_Yf_TILED_CCS:
> --
> 2.17.1
>
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