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gpu: nvgpu: gm20b: Comptag size must use LTC count

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Calculation for comptag backing store must use number of LTCs instead
of number of FBPs.

Change-Id: If0aa636e09a3d24459987e626fe53bb7c96f1b15
Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com>
Reviewed-on: http://git-master/r/453809
Reviewed-by: Shridhar Rasal <srasal@nvidia.com>
Reviewed-by: Alex Waterman <alexw@nvidia.com>
This commit is contained in:
Terje Bergstrom
2014-08-07 09:26:51 +03:00
committed by Dan Willemsen
parent c6a5d3369d
commit 04112d11a8
1 changed files with 4 additions and 5 deletions
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9
drivers/gpu/nvgpu/gm20b/ltc_gm20b.c
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@@ -58,21 +58,20 @@ static int gm20b_ltc_init_comptags(struct gk20a *g, struct gr_gk20a *gr)
if (max_comptag_lines > hw_max_comptag_lines) if (max_comptag_lines > hw_max_comptag_lines)
max_comptag_lines = hw_max_comptag_lines; max_comptag_lines = hw_max_comptag_lines;
/* no hybird fb */
compbit_backing_size = compbit_backing_size =
DIV_ROUND_UP(max_comptag_lines, comptags_per_cacheline) * DIV_ROUND_UP(max_comptag_lines, comptags_per_cacheline) *
cacheline_size * slices_per_ltc * gr->num_fbps; cacheline_size * slices_per_ltc * g->ltc_count;
/* aligned to 2KB * num_fbps */ /* aligned to 2KB * ltc_count */
compbit_backing_size += compbit_backing_size +=
gr->num_fbps << ltc_ltcs_ltss_cbc_base_alignment_shift_v(); g->ltc_count << ltc_ltcs_ltss_cbc_base_alignment_shift_v();
/* must be a multiple of 64KB */ /* must be a multiple of 64KB */
compbit_backing_size = roundup(compbit_backing_size, 64*1024); compbit_backing_size = roundup(compbit_backing_size, 64*1024);
max_comptag_lines = max_comptag_lines =
(compbit_backing_size * comptags_per_cacheline) / (compbit_backing_size * comptags_per_cacheline) /
cacheline_size * slices_per_ltc * gr->num_fbps; cacheline_size * slices_per_ltc * g->ltc_count;
if (max_comptag_lines > hw_max_comptag_lines) if (max_comptag_lines > hw_max_comptag_lines)
max_comptag_lines = hw_max_comptag_lines; max_comptag_lines = hw_max_comptag_lines;