diff options
| author |   Daniel Kurtz <djkurtz@chromium.org> | 2018-11-12 14:48:12 +0530 |
|---|---|---|
| committer |   Alex Deucher <alexander.deucher@amd.com> | 2018-11-12 15:55:14 -0500 |
| commit | 2bf011c861b75026d948b199659087ac9bdff026 (patch) | |
| tree | 97096c9dda0caa1457bf6d02341e43c039c6dd69 | |
| parent | drm/amdgpu/gfx9: rework lbpw enable code (diff) | |
| download | linux-dev-2bf011c861b75026d948b199659087ac9bdff026.tar.xz linux-dev-2bf011c861b75026d948b199659087ac9bdff026.zip | |
drm/amdgpu: refactor smu8_send_msg_to_smc and WARN_ON time out
This patch refactors smu8_send_msg_to_smc_with_parameter() to include
smu8_send_msg_to_smc_async() so that all the messages sent to SMU can be
profiled and appropriately reported if they fail.
Signed-off-by: Daniel Kurtz <djkurtz@chromium.org>
Signed-off-by: Shirish S <shirish.s@amd.com>
Reviewed-by: Rex Zhu <Rex.Zhu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
| -rw-r--r-- | drivers/gpu/drm/amd/powerplay/smumgr/smu8_smumgr.c | 45 |
1 files changed, 21 insertions, 24 deletions
diff --git a/drivers/gpu/drm/amd/powerplay/smumgr/smu8_smumgr.c b/drivers/gpu/drm/amd/powerplay/smumgr/smu8_smumgr.c index 09b844ec3eab..b6e8c89ca03a 100644 --- a/drivers/gpu/drm/amd/powerplay/smumgr/smu8_smumgr.c +++ b/drivers/gpu/drm/amd/powerplay/smumgr/smu8_smumgr.c @@ -24,6 +24,7 @@ #include <linux/delay.h> #include <linux/gfp.h> #include <linux/kernel.h> +#include <linux/ktime.h> #include <linux/slab.h> #include <linux/types.h> @@ -61,9 +62,13 @@ static uint32_t smu8_get_argument(struct pp_hwmgr *hwmgr) mmSMU_MP1_SRBM2P_ARG_0); } -static int smu8_send_msg_to_smc_async(struct pp_hwmgr *hwmgr, uint16_t msg) +/* Send a message to the SMC, and wait for its response.*/ +static int smu8_send_msg_to_smc_with_parameter(struct pp_hwmgr *hwmgr, + uint16_t msg, uint32_t parameter) { int result = 0; + ktime_t t_start; + s64 elapsed_us; if (hwmgr == NULL || hwmgr->device == NULL) return -EINVAL; @@ -74,28 +79,31 @@ static int smu8_send_msg_to_smc_async(struct pp_hwmgr *hwmgr, uint16_t msg) /* Read the last message to SMU, to report actual cause */ uint32_t val = cgs_read_register(hwmgr->device, mmSMU_MP1_SRBM2P_MSG_0); - pr_err("smu8_send_msg_to_smc_async (0x%04x) failed\n", msg); - pr_err("SMU still servicing msg (0x%04x)\n", val); + pr_err("%s(0x%04x) aborted; SMU still servicing msg (0x%04x)\n", + __func__, msg, val); return result; } + t_start = ktime_get(); + + cgs_write_register(hwmgr->device, mmSMU_MP1_SRBM2P_ARG_0, parameter); cgs_write_register(hwmgr->device, mmSMU_MP1_SRBM2P_RESP_0, 0); cgs_write_register(hwmgr->device, mmSMU_MP1_SRBM2P_MSG_0, msg); - return 0; + result = PHM_WAIT_FIELD_UNEQUAL(hwmgr, + SMU_MP1_SRBM2P_RESP_0, CONTENT, 0); + + elapsed_us = ktime_us_delta(ktime_get(), t_start); + + WARN(result, "%s(0x%04x, %#x) timed out after %lld us\n", + __func__, msg, parameter, elapsed_us); + + return result; } -/* Send a message to the SMC, and wait for its response.*/ static int smu8_send_msg_to_smc(struct pp_hwmgr *hwmgr, uint16_t msg) { - int result = 0; - - result = smu8_send_msg_to_smc_async(hwmgr, msg); - if (result != 0) - return result; - - return PHM_WAIT_FIELD_UNEQUAL(hwmgr, - SMU_MP1_SRBM2P_RESP_0, CONTENT, 0); + return smu8_send_msg_to_smc_with_parameter(hwmgr, msg, 0); } static int smu8_set_smc_sram_address(struct pp_hwmgr *hwmgr, @@ -135,17 +143,6 @@ static int smu8_write_smc_sram_dword(struct pp_hwmgr *hwmgr, return result; } -static int smu8_send_msg_to_smc_with_parameter(struct pp_hwmgr *hwmgr, - uint16_t msg, uint32_t parameter) -{ - if (hwmgr == NULL || hwmgr->device == NULL) - return -EINVAL; - - cgs_write_register(hwmgr->device, mmSMU_MP1_SRBM2P_ARG_0, parameter); - - return smu8_send_msg_to_smc(hwmgr, msg); -} - static int smu8_check_fw_load_finish(struct pp_hwmgr *hwmgr, uint32_t firmware) { |