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gpu: nvgpu: Invalidate CBC in initialization

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Ensure CBC is invalidated at GPU initialization.

Bug 1409151

Change-Id: I054be20a3252e40c96baec75958918c85a5a7801
Signed-off-by: Arto Merilainen <amerilainen@nvidia.com>
This commit is contained in:
Arto Merilainen
2014-04-09 20:51:21 +03:00
committed by Dan Willemsen
parent 38de7b6475
commit 3eedb0256d
1 changed files with 7 additions and 0 deletions
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7
drivers/gpu/nvgpu/gk20a/ltc_common.c
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@@ -182,6 +182,9 @@ static int gk20a_ltc_init_zbc(struct gk20a *g, struct gr_gk20a *gr)
static void gk20a_ltc_init_cbc(struct gk20a *g, struct gr_gk20a *gr)
{
u32 max_size = gr->max_comptag_mem;
u32 max_comptag_lines = max_size << 3;
u32 compbit_base_post_divide;
u64 compbit_base_post_multiply64;
u64 compbit_store_base_iova =
@@ -206,6 +209,10 @@ static void gk20a_ltc_init_cbc(struct gk20a *g, struct gr_gk20a *gr)
(u32)(compbit_store_base_iova >> 32),
(u32)(compbit_store_base_iova & 0xffffffff),
compbit_base_post_divide);
g->ops.ltc.cbc_ctrl(g, gk20a_cbc_op_invalidate,
0, max_comptag_lines - 1);
}
/* Flushes the compression bit cache as well as "data".