1 files changed, 398 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/powerplay/smumgr/rv_smumgr.c b/drivers/gpu/drm/amd/powerplay/smumgr/rv_smumgr.c
new file mode 100644
index 000000000000..ce0a30388ea1
--- /dev/null
+++ b/drivers/gpu/drm/amd/powerplay/smumgr/rv_smumgr.c
@@ -0,0 +1,398 @@
+/*
+ * Copyright 2016 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ */
+
+#include "smumgr.h"
+#include "rv_inc.h"
+#include "pp_soc15.h"
+#include "rv_smumgr.h"
+#include "ppatomctrl.h"
+#include "rv_ppsmc.h"
+#include "smu10_driver_if.h"
+#include "smu10.h"
+#include "ppatomctrl.h"
+#include "pp_debug.h"
+#include "smu_ucode_xfer_vi.h"
+#include "smu7_smumgr.h"
+
+#define VOLTAGE_SCALE 4
+
+#define BUFFER_SIZE                 80000
+#define MAX_STRING_SIZE             15
+#define BUFFER_SIZETWO              131072
+
+#define MP0_Public                  0x03800000
+#define MP0_SRAM                    0x03900000
+#define MP1_Public                  0x03b00000
+#define MP1_SRAM                    0x03c00004
+
+#define smnMP1_FIRMWARE_FLAGS       0x3010028
+
+
+bool rv_is_smc_ram_running(struct pp_smumgr *smumgr)
+{
+	uint32_t mp1_fw_flags, reg;
+
+	reg = soc15_get_register_offset(NBIF_HWID, 0,
+			mmPCIE_INDEX2_BASE_IDX, mmPCIE_INDEX2);
+
+	cgs_write_register(smumgr->device, reg,
+			(MP1_Public | (smnMP1_FIRMWARE_FLAGS & 0xffffffff)));
+
+	reg = soc15_get_register_offset(NBIF_HWID, 0,
+			mmPCIE_DATA2_BASE_IDX, mmPCIE_DATA2);
+
+	mp1_fw_flags = cgs_read_register(smumgr->device, reg);
+
+	if (mp1_fw_flags & MP1_FIRMWARE_FLAGS__INTERRUPTS_ENABLED_MASK)
+		return true;
+
+	return false;
+}
+
+static uint32_t rv_wait_for_response(struct pp_smumgr *smumgr)
+{
+	uint32_t reg;
+
+	if (!rv_is_smc_ram_running(smumgr))
+		return -EINVAL;
+
+	reg = soc15_get_register_offset(MP1_HWID, 0,
+			mmMP1_SMN_C2PMSG_90_BASE_IDX, mmMP1_SMN_C2PMSG_90);
+
+	smum_wait_for_register_unequal(smumgr, reg,
+			0, MP1_C2PMSG_90__CONTENT_MASK);
+
+	return cgs_read_register(smumgr->device, reg);
+}
+
+int rv_send_msg_to_smc_without_waiting(struct pp_smumgr *smumgr,
+		uint16_t msg)
+{
+	uint32_t reg;
+
+	if (!rv_is_smc_ram_running(smumgr))
+		return -EINVAL;
+
+	reg = soc15_get_register_offset(MP1_HWID, 0,
+			mmMP1_SMN_C2PMSG_66_BASE_IDX, mmMP1_SMN_C2PMSG_66);
+	cgs_write_register(smumgr->device, reg, msg);
+
+	return 0;
+}
+
+int rv_read_arg_from_smc(struct pp_smumgr *smumgr, uint32_t *arg)
+{
+	uint32_t reg;
+
+	reg = soc15_get_register_offset(MP1_HWID, 0,
+			mmMP1_SMN_C2PMSG_82_BASE_IDX, mmMP1_SMN_C2PMSG_82);
+
+	*arg = cgs_read_register(smumgr->device, reg);
+
+	return 0;
+}
+
+int rv_send_msg_to_smc(struct pp_smumgr *smumgr, uint16_t msg)
+{
+	uint32_t reg;
+
+	rv_wait_for_response(smumgr);
+
+	reg = soc15_get_register_offset(MP1_HWID, 0,
+			mmMP1_SMN_C2PMSG_90_BASE_IDX, mmMP1_SMN_C2PMSG_90);
+	cgs_write_register(smumgr->device, reg, 0);
+
+	rv_send_msg_to_smc_without_waiting(smumgr, msg);
+
+	if (rv_wait_for_response(smumgr) == 0)
+		printk("Failed to send Message %x.\n", msg);
+
+	return 0;
+}
+
+
+int rv_send_msg_to_smc_with_parameter(struct pp_smumgr *smumgr,
+		uint16_t msg, uint32_t parameter)
+{
+	uint32_t reg;
+
+	rv_wait_for_response(smumgr);
+
+	reg = soc15_get_register_offset(MP1_HWID, 0,
+			mmMP1_SMN_C2PMSG_90_BASE_IDX, mmMP1_SMN_C2PMSG_90);
+	cgs_write_register(smumgr->device, reg, 0);
+
+	reg = soc15_get_register_offset(MP1_HWID, 0,
+			mmMP1_SMN_C2PMSG_82_BASE_IDX, mmMP1_SMN_C2PMSG_82);
+	cgs_write_register(smumgr->device, reg, parameter);
+
+	rv_send_msg_to_smc_without_waiting(smumgr, msg);
+
+
+	if (rv_wait_for_response(smumgr) == 0)
+		printk("Failed to send Message %x.\n", msg);
+
+	return 0;
+}
+
+int rv_copy_table_from_smc(struct pp_smumgr *smumgr,
+		uint8_t *table, int16_t table_id)
+{
+	struct rv_smumgr *priv =
+			(struct rv_smumgr *)(smumgr->backend);
+
+	PP_ASSERT_WITH_CODE(table_id < MAX_SMU_TABLE,
+			"Invalid SMU Table ID!", return -EINVAL;);
+	PP_ASSERT_WITH_CODE(priv->smu_tables.entry[table_id].version != 0,
+			"Invalid SMU Table version!", return -EINVAL;);
+	PP_ASSERT_WITH_CODE(priv->smu_tables.entry[table_id].size != 0,
+			"Invalid SMU Table Length!", return -EINVAL;);
+	PP_ASSERT_WITH_CODE(rv_send_msg_to_smc_with_parameter(smumgr,
+			PPSMC_MSG_SetDriverDramAddrHigh,
+			priv->smu_tables.entry[table_id].table_addr_high) == 0,
+			"[CopyTableFromSMC] Attempt to Set Dram Addr High Failed!", return -EINVAL;);
+	PP_ASSERT_WITH_CODE(rv_send_msg_to_smc_with_parameter(smumgr,
+			PPSMC_MSG_SetDriverDramAddrLow,
+			priv->smu_tables.entry[table_id].table_addr_low) == 0,
+			"[CopyTableFromSMC] Attempt to Set Dram Addr Low Failed!",
+			return -EINVAL;);
+	PP_ASSERT_WITH_CODE(rv_send_msg_to_smc_with_parameter(smumgr,
+			PPSMC_MSG_TransferTableSmu2Dram,
+			priv->smu_tables.entry[table_id].table_id) == 0,
+			"[CopyTableFromSMC] Attempt to Transfer Table From SMU Failed!",
+			return -EINVAL;);
+
+	memcpy(table, priv->smu_tables.entry[table_id].table,
+			priv->smu_tables.entry[table_id].size);
+
+	return 0;
+}
+
+int rv_copy_table_to_smc(struct pp_smumgr *smumgr,
+		uint8_t *table, int16_t table_id)
+{
+	struct rv_smumgr *priv =
+			(struct rv_smumgr *)(smumgr->backend);
+
+	PP_ASSERT_WITH_CODE(table_id < MAX_SMU_TABLE,
+			"Invalid SMU Table ID!", return -EINVAL;);
+	PP_ASSERT_WITH_CODE(priv->smu_tables.entry[table_id].version != 0,
+			"Invalid SMU Table version!", return -EINVAL;);
+	PP_ASSERT_WITH_CODE(priv->smu_tables.entry[table_id].size != 0,
+			"Invalid SMU Table Length!", return -EINVAL;);
+
+	memcpy(priv->smu_tables.entry[table_id].table, table,
+			priv->smu_tables.entry[table_id].size);
+
+	PP_ASSERT_WITH_CODE(rv_send_msg_to_smc_with_parameter(smumgr,
+			PPSMC_MSG_SetDriverDramAddrHigh,
+			priv->smu_tables.entry[table_id].table_addr_high) == 0,
+			"[CopyTableToSMC] Attempt to Set Dram Addr High Failed!",
+			return -EINVAL;);
+	PP_ASSERT_WITH_CODE(rv_send_msg_to_smc_with_parameter(smumgr,
+			PPSMC_MSG_SetDriverDramAddrLow,
+			priv->smu_tables.entry[table_id].table_addr_low) == 0,
+			"[CopyTableToSMC] Attempt to Set Dram Addr Low Failed!",
+			return -EINVAL;);
+	PP_ASSERT_WITH_CODE(rv_send_msg_to_smc_with_parameter(smumgr,
+			PPSMC_MSG_TransferTableDram2Smu,
+			priv->smu_tables.entry[table_id].table_id) == 0,
+			"[CopyTableToSMC] Attempt to Transfer Table To SMU Failed!",
+			return -EINVAL;);
+
+	return 0;
+}
+
+static int rv_verify_smc_interface(struct pp_smumgr *smumgr)
+{
+	uint32_t smc_driver_if_version;
+
+	PP_ASSERT_WITH_CODE(!rv_send_msg_to_smc(smumgr,
+			PPSMC_MSG_GetDriverIfVersion),
+			"Attempt to get SMC IF Version Number Failed!",
+			return -EINVAL);
+	PP_ASSERT_WITH_CODE(!rv_read_arg_from_smc(smumgr,
+			&smc_driver_if_version),
+			"Attempt to read SMC IF Version Number Failed!",
+			return -EINVAL);
+
+	if (smc_driver_if_version != SMU10_DRIVER_IF_VERSION)
+		return -EINVAL;
+
+	return 0;
+}
+
+/* sdma is disabled by default in vbios, need to re-enable in driver */
+static int rv_smc_enable_sdma(struct pp_smumgr *smumgr)
+{
+	PP_ASSERT_WITH_CODE(!rv_send_msg_to_smc(smumgr,
+			PPSMC_MSG_PowerUpSdma),
+			"Attempt to power up sdma Failed!",
+			return -EINVAL);
+
+	return 0;
+}
+
+static int rv_smc_disable_sdma(struct pp_smumgr *smumgr)
+{
+	PP_ASSERT_WITH_CODE(!rv_send_msg_to_smc(smumgr,
+			PPSMC_MSG_PowerDownSdma),
+			"Attempt to power down sdma Failed!",
+			return -EINVAL);
+
+	return 0;
+}
+
+/* vcn is disabled by default in vbios, need to re-enable in driver */
+static int rv_smc_enable_vcn(struct pp_smumgr *smumgr)
+{
+	PP_ASSERT_WITH_CODE(!rv_send_msg_to_smc_with_parameter(smumgr,
+			PPSMC_MSG_PowerUpVcn, 0),
+			"Attempt to power up vcn Failed!",
+			return -EINVAL);
+
+	return 0;
+}
+
+static int rv_smc_disable_vcn(struct pp_smumgr *smumgr)
+{
+	PP_ASSERT_WITH_CODE(!rv_send_msg_to_smc_with_parameter(smumgr,
+			PPSMC_MSG_PowerDownVcn, 0),
+			"Attempt to power down vcn Failed!",
+			return -EINVAL);
+
+	return 0;
+}
+
+static int rv_smu_fini(struct pp_smumgr *smumgr)
+{
+	struct rv_smumgr *priv =
+			(struct rv_smumgr *)(smumgr->backend);
+
+	if (priv) {
+		rv_smc_disable_sdma(smumgr);
+		rv_smc_disable_vcn(smumgr);
+		cgs_free_gpu_mem(smumgr->device,
+				priv->smu_tables.entry[WMTABLE].handle);
+		cgs_free_gpu_mem(smumgr->device,
+				priv->smu_tables.entry[CLOCKTABLE].handle);
+		kfree(smumgr->backend);
+		smumgr->backend = NULL;
+	}
+
+	return 0;
+}
+
+static int rv_start_smu(struct pp_smumgr *smumgr)
+{
+	if (rv_verify_smc_interface(smumgr))
+		return -EINVAL;
+	if (rv_smc_enable_sdma(smumgr))
+		return -EINVAL;
+	if (rv_smc_enable_vcn(smumgr))
+		return -EINVAL;
+
+	return 0;
+}
+
+static int rv_smu_init(struct pp_smumgr *smumgr)
+{
+	struct rv_smumgr *priv;
+	uint64_t mc_addr;
+	void *kaddr = NULL;
+	unsigned long handle;
+
+	priv = kzalloc(sizeof(struct rv_smumgr), GFP_KERNEL);
+
+	if (!priv)
+		return -ENOMEM;
+
+	smumgr->backend = priv;
+
+	/* allocate space for watermarks table */
+	smu_allocate_memory(smumgr->device,
+			sizeof(Watermarks_t),
+			CGS_GPU_MEM_TYPE__GART_CACHEABLE,
+			PAGE_SIZE,
+			&mc_addr,
+			&kaddr,
+			&handle);
+
+	PP_ASSERT_WITH_CODE(kaddr,
+			"[rv_smu_init] Out of memory for wmtable.",
+			kfree(smumgr->backend);
+			smumgr->backend = NULL;
+			return -EINVAL);
+
+	priv->smu_tables.entry[WMTABLE].version = 0x01;
+	priv->smu_tables.entry[WMTABLE].size = sizeof(Watermarks_t);
+	priv->smu_tables.entry[WMTABLE].table_id = TABLE_WATERMARKS;
+	priv->smu_tables.entry[WMTABLE].table_addr_high =
+			smu_upper_32_bits(mc_addr);
+	priv->smu_tables.entry[WMTABLE].table_addr_low =
+			smu_lower_32_bits(mc_addr);
+	priv->smu_tables.entry[WMTABLE].table = kaddr;
+	priv->smu_tables.entry[WMTABLE].handle = handle;
+
+	/* allocate space for watermarks table */
+	smu_allocate_memory(smumgr->device,
+			sizeof(DpmClocks_t),
+			CGS_GPU_MEM_TYPE__GART_CACHEABLE,
+			PAGE_SIZE,
+			&mc_addr,
+			&kaddr,
+			&handle);
+
+	PP_ASSERT_WITH_CODE(kaddr,
+			"[rv_smu_init] Out of memory for CLOCKTABLE.",
+			cgs_free_gpu_mem(smumgr->device,
+			(cgs_handle_t)priv->smu_tables.entry[WMTABLE].handle);
+			kfree(smumgr->backend);
+			smumgr->backend = NULL;
+			return -EINVAL);
+
+	priv->smu_tables.entry[CLOCKTABLE].version = 0x01;
+	priv->smu_tables.entry[CLOCKTABLE].size = sizeof(DpmClocks_t);
+	priv->smu_tables.entry[CLOCKTABLE].table_id = TABLE_DPMCLOCKS;
+	priv->smu_tables.entry[CLOCKTABLE].table_addr_high =
+			smu_upper_32_bits(mc_addr);
+	priv->smu_tables.entry[CLOCKTABLE].table_addr_low =
+			smu_lower_32_bits(mc_addr);
+	priv->smu_tables.entry[CLOCKTABLE].table = kaddr;
+	priv->smu_tables.entry[CLOCKTABLE].handle = handle;
+
+	return 0;
+}
+
+const struct pp_smumgr_func rv_smu_funcs = {
+	.smu_init = &rv_smu_init,
+	.smu_fini = &rv_smu_fini,
+	.start_smu = &rv_start_smu,
+	.request_smu_load_specific_fw = NULL,
+	.send_msg_to_smc = &rv_send_msg_to_smc,
+	.send_msg_to_smc_with_parameter = &rv_send_msg_to_smc_with_parameter,
+	.download_pptable_settings = NULL,
+	.upload_pptable_settings = NULL,
+};
+
+