From 00e36e0723ab2ada3f42738c1f99b1293ef4383f Mon Sep 17 00:00:00 2001 From: Kai Vehmanen Date: Mon, 1 Jul 2024 12:14:43 +0300 Subject: [PATCH] intel_adsp/ace: power: pad the hpsram_mask passed to power_down The power_down() function will lock dcache for the hpsram_mask array. On some platforms, the dcache lock will fail if the array is on cache line that can be used for window register context saves. Work around this by aligning and padding the hpsram_mask to cacheline size. Link: https://github.com/thesofproject/sof/issues/9268 Signed-off-by: Kai Vehmanen --- soc/intel/intel_adsp/ace/power.c | 10 ++++++---- 1 file changed, 6 insertions(+), 4 deletions(-) diff --git a/soc/intel/intel_adsp/ace/power.c b/soc/intel/intel_adsp/ace/power.c index 0d75100fab3e73..a8abf9d1bf9746 100644 --- a/soc/intel/intel_adsp/ace/power.c +++ b/soc/intel/intel_adsp/ace/power.c @@ -339,16 +339,18 @@ void pm_state_set(enum pm_state state, uint8_t substate_id) (void *)rom_entry; sys_cache_data_flush_range((void *)imr_layout, sizeof(*imr_layout)); #endif /* CONFIG_ADSP_IMR_CONTEXT_SAVE */ - uint32_t hpsram_mask = 0; + const int dcache_words = XCHAL_DCACHE_LINESIZE / 4; + __aligned(XCHAL_DCACHE_LINESIZE) uint32_t hpsram_mask[dcache_words]; + hpsram_mask[0] = 0; #ifdef CONFIG_ADSP_POWER_DOWN_HPSRAM /* turn off all HPSRAM banks - get a full bitmap */ uint32_t ebb_banks = ace_hpsram_get_bank_count(); - hpsram_mask = (1 << ebb_banks) - 1; + hpsram_mask[0] = (1 << ebb_banks) - 1; #endif /* CONFIG_ADSP_POWER_DOWN_HPSRAM */ - /* do power down - this function won't return */ ret = pm_device_runtime_put(INTEL_ADSP_HST_DOMAIN_DEV); __ASSERT_NO_MSG(ret == 0); - power_down(true, sys_cache_cached_ptr_get(&hpsram_mask), + /* do power down - this function won't return */ + power_down(true, sys_cache_cached_ptr_get(&hpsram_mask[0]), true); } else { power_gate_entry(cpu);