diff --git a/plat/nvidia/tegra/soc/t194/drivers/include/mce_private.h b/plat/nvidia/tegra/soc/t194/drivers/include/mce_private.h index 3ac5333a042d327e690060d3540de61337c82ec2..415dc0f89a79f771e2f26f90c362455e7c021488 100644 --- a/plat/nvidia/tegra/soc/t194/drivers/include/mce_private.h +++ b/plat/nvidia/tegra/soc/t194/drivers/include/mce_private.h @@ -75,5 +75,8 @@ int32_t nvg_enter_cstate(uint32_t state, uint32_t wake_time); void nvg_set_request_data(uint64_t req, uint64_t data); void nvg_set_request(uint64_t req); uint64_t nvg_get_result(void); +uint64_t nvg_cache_clean(void); +uint64_t nvg_cache_clean_inval(void); +uint64_t nvg_cache_inval_all(void); #endif /* __MCE_PRIVATE_H__ */ diff --git a/plat/nvidia/tegra/soc/t194/drivers/mce/aarch64/nvg_helpers.S b/plat/nvidia/tegra/soc/t194/drivers/mce/aarch64/nvg_helpers.S index e6a6a998020cb5f55d9d19832273b59d6c4e165c..3c47208a10229104e74a7e5992a0fd13036fff95 100644 --- a/plat/nvidia/tegra/soc/t194/drivers/mce/aarch64/nvg_helpers.S +++ b/plat/nvidia/tegra/soc/t194/drivers/mce/aarch64/nvg_helpers.S @@ -10,6 +10,9 @@ .globl nvg_set_request_data .globl nvg_set_request .globl nvg_get_result + .globl nvg_cache_clean + .globl nvg_cache_clean_inval + .globl nvg_cache_inval_all /* void nvg_set_request_data(uint64_t req, uint64_t data) */ func nvg_set_request_data @@ -29,3 +32,21 @@ func nvg_get_result mrs x0, s3_0_c15_c1_3 ret endfunc nvg_get_result + +/* uint64_t nvg_cache_clean(void) */ +func nvg_cache_clean + mrs x0, s3_0_c15_c3_5 + ret +endfunc nvg_cache_clean + +/* uint64_t nvg_cache_clean_inval(void) */ +func nvg_cache_clean_inval + mrs x0, s3_0_c15_c3_6 + ret +endfunc nvg_cache_clean_inval + +/* uint64_t nvg_cache_inval_all(void) */ +func nvg_cache_inval_all + mrs x0, s3_0_c15_c3_7 + ret +endfunc nvg_cache_inval_all \ No newline at end of file diff --git a/plat/nvidia/tegra/soc/t194/drivers/mce/nvg.c b/plat/nvidia/tegra/soc/t194/drivers/mce/nvg.c index c7f6591866fbe5bf5dba5311ad88c9fc6daaecf9..2eba1d33e027346d4af6770383a733ce59684438 100644 --- a/plat/nvidia/tegra/soc/t194/drivers/mce/nvg.c +++ b/plat/nvidia/tegra/soc/t194/drivers/mce/nvg.c @@ -15,10 +15,8 @@ #include #include -extern void nvg_set_request_data(uint64_t req, uint64_t data); -extern void nvg_set_request(uint64_t req); -extern uint64_t nvg_get_result(void); - +#define ID_AFR0_EL1_CACHE_OPS_SHIFT 12 +#define ID_AFR0_EL1_CACHE_OPS_MASK 0xFU /* * Reports the major and minor version of this interface. * @@ -306,41 +304,62 @@ int32_t nvg_update_ccplex_gsc(uint32_t gsc_idx) /* * Cache clean operation for all CCPLEX caches. - * - * NVGDATA[0] cache_clean */ int32_t nvg_roc_clean_cache(void) { - nvg_set_request_data(TEGRA_NVG_CHANNEL_CCPLEX_CACHE_INVAL, - (uint64_t)CACHE_CLEAN_SET); + int32_t ret = 0; - return 0; + /* check if cache flush through mts is supported */ + if (((read_id_afr0_el1() >> ID_AFR0_EL1_CACHE_OPS_SHIFT) & + ID_AFR0_EL1_CACHE_OPS_MASK) == 1U) { + if (nvg_cache_clean() == 0U) { + ERROR("%s: failed\n", __func__); + ret = EINVAL; + } + } else { + ret = EINVAL; + } + return ret; } /* * Cache clean and invalidate operation for all CCPLEX caches. - * - * NVGDATA[1] cache_clean_inval */ int32_t nvg_roc_flush_cache(void) { - nvg_set_request_data(TEGRA_NVG_CHANNEL_CCPLEX_CACHE_INVAL, - (uint64_t)CACHE_CLEAN_INVAL_SET); + int32_t ret = 0; - return 0; + /* check if cache flush through mts is supported */ + if (((read_id_afr0_el1() >> ID_AFR0_EL1_CACHE_OPS_SHIFT) & + ID_AFR0_EL1_CACHE_OPS_MASK) == 1U) { + if (nvg_cache_clean_inval() == 0U) { + ERROR("%s: failed\n", __func__); + ret = EINVAL; + } + } else { + ret = EINVAL; + } + return ret; } /* * Cache clean and invalidate, clear TR-bit operation for all CCPLEX caches. - * - * NVGDATA[2] cache_clean_inval_tr */ int32_t nvg_roc_clean_cache_trbits(void) { - nvg_set_request_data(TEGRA_NVG_CHANNEL_CCPLEX_CACHE_INVAL, - (uint64_t)CACHE_CLEAN_INVAL_TR_SET); + int32_t ret = 0; - return 0; + /* check if cache flush through mts is supported */ + if (((read_id_afr0_el1() >> ID_AFR0_EL1_CACHE_OPS_SHIFT) & + ID_AFR0_EL1_CACHE_OPS_MASK) == 1U) { + if (nvg_cache_inval_all() == 0U) { + ERROR("%s: failed\n", __func__); + ret = EINVAL; + } + } else { + ret = EINVAL; + } + return ret; } /*