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radeonsi: Inhibit clock-gating for perf counters.

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Otherwise most counters return 0. Should be much more user friendly
than having to totally disable clock-gating on the kernel cmdline.

Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/5972>
This commit is contained in:
Bas Nieuwenhuizen 2020-07-20 01:43:18 +02:00 • committed by Marge Bot
parent 794ba3efd7
commit 7b7917a424
1 changed files with 15 additions and 0 deletions
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15
src/gallium/drivers/radeonsi/si_perfcounter.c
View file

@ -919,6 +919,17 @@ static void si_pc_query_destroy(struct si_context *sctx, struct si_query *squery
FREE(query);
}
static void si_inhibit_clockgating(struct si_context *sctx, bool inhibit)
{
if (sctx->chip_class >= GFX10) {
radeon_set_uconfig_reg(sctx->gfx_cs, R_037390_RLC_PERFMON_CLK_CNTL,
S_037390_PERFMON_CLOCK_STATE(inhibit));
} else if (sctx->chip_class >= GFX8) {
radeon_set_uconfig_reg(sctx->gfx_cs, R_0372FC_RLC_PERFMON_CLK_CNTL,
S_0372FC_PERFMON_CLOCK_STATE(inhibit));
}
}
static void si_pc_query_resume(struct si_context *sctx, struct si_query *squery)
/*
struct si_query_hw *hwquery,
@ -935,6 +946,8 @@ static void si_pc_query_resume(struct si_context *sctx, struct si_query *squery)
if (query->shaders)
si_pc_emit_shaders(sctx, query->shaders);
si_inhibit_clockgating(sctx, true);
for (struct si_query_group *group = query->groups; group; group = group->next) {
struct si_pc_block *block = group->block;
@ -986,6 +999,8 @@ static void si_pc_query_suspend(struct si_context *sctx, struct si_query *squery
}
si_pc_emit_instance(sctx, -1, -1);
si_inhibit_clockgating(sctx, false);
}
static bool si_pc_query_begin(struct si_context *ctx, struct si_query *squery)