[AMD Official Use Only - General] Reviewed-by: Hawking Zhang <[email protected]>
Regards, Hawking -----Original Message----- From: amd-gfx <[email protected]> On Behalf Of Gao, Likun Sent: Tuesday, June 13, 2023 15:37 To: amd-gfx list <[email protected]> Subject: [PATCH] drm/amdgpu: add wait_for helper for spirom update [AMD Official Use Only - General] [AMD Official Use Only - General] From: Likun Gao <[email protected]> Sent: Tuesday, June 13, 2023 3:29 PM To: brahma_sw_dev <[email protected]> Cc: Zhang, Hawking <[email protected]>; Gao, Likun <[email protected]> Subject: [PATCH] drm/amdgpu: add wait_for helper for spirom update From: Likun Gao <[email protected]> Spirom update typically requires extremely long duration for command execution, and special helper function to wait for it's completion. Signed-off-by: Likun Gao <[email protected]> --- drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c | 20 ++++++++++++++++++++ drivers/gpu/drm/amd/amdgpu/amdgpu_psp.h | 2 ++ drivers/gpu/drm/amd/amdgpu/psp_v13_0.c | 9 +++++---- drivers/gpu/drm/amd/amdgpu/psp_v13_0.h | 2 ++ 4 files changed, 29 insertions(+), 4 deletions(-) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c index a39d4ddf7743..fa06da014473 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c @@ -560,6 +560,26 @@ int psp_wait_for(struct psp_context *psp, uint32_t reg_index, return -ETIME; } +int psp_wait_for_spirom_update(struct psp_context *psp, uint32_t reg_index, + uint32_t reg_val, uint32_t mask, uint32_t msec_timeout) { + uint32_t val; + int i; + struct amdgpu_device *adev = psp->adev; + + if (psp->adev->no_hw_access) + return 0; + + for (i = 0; i < msec_timeout; i++) { + val = RREG32(reg_index); + if ((val & mask) == reg_val) + return 0; + msleep(1); + } + + return -ETIME; +} + static const char *psp_gfx_cmd_name(enum psp_gfx_cmd_id cmd_id) { switch (cmd_id) { diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.h index cf4f60c66122..ec3f3fe5efff 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.h @@ -455,6 +455,8 @@ extern const struct amdgpu_ip_block_version psp_v13_0_4_ip_block; extern int psp_wait_for(struct psp_context *psp, uint32_t reg_index, uint32_t field_val, uint32_t mask, bool check_changed); +extern int psp_wait_for_spirom_update(struct psp_context *psp, uint32_t reg_index, + uint32_t field_val, uint32_t mask, uint32_t msec_timeout); int psp_gpu_reset(struct amdgpu_device *adev); int psp_update_vcn_sram(struct amdgpu_device *adev, int inst_idx, diff --git a/drivers/gpu/drm/amd/amdgpu/psp_v13_0.c b/drivers/gpu/drm/amd/amdgpu/psp_v13_0.c index caee76ab7110..67e216373585 100644 --- a/drivers/gpu/drm/amd/amdgpu/psp_v13_0.c +++ b/drivers/gpu/drm/amd/amdgpu/psp_v13_0.c @@ -624,10 +624,11 @@ static int psp_v13_0_exec_spi_cmd(struct psp_context *psp, int cmd) WREG32_SOC15(MP0, 0, regMP0_SMN_C2PMSG_73, 1); if (cmd == C2PMSG_CMD_SPI_UPDATE_FLASH_IMAGE) - return 0; - - ret = psp_wait_for(psp, SOC15_REG_OFFSET(MP0, 0, regMP0_SMN_C2PMSG_115), - MBOX_READY_FLAG, MBOX_READY_MASK, false); + ret = psp_wait_for_spirom_update(psp, SOC15_REG_OFFSET(MP0, 0, regMP0_SMN_C2PMSG_115), + MBOX_READY_FLAG, MBOX_READY_MASK, PSP_SPIROM_UPDATE_TIMEOUT); + else + ret = psp_wait_for(psp, SOC15_REG_OFFSET(MP0, 0, regMP0_SMN_C2PMSG_115), + MBOX_READY_FLAG, MBOX_READY_MASK, false); if (ret) { dev_err(adev->dev, "SPI cmd %x timed out, ret = %d", cmd, ret); return ret; diff --git a/drivers/gpu/drm/amd/amdgpu/psp_v13_0.h b/drivers/gpu/drm/amd/amdgpu/psp_v13_0.h index b2414a729ca1..9eae5e23b2e5 100644 --- a/drivers/gpu/drm/amd/amdgpu/psp_v13_0.h +++ b/drivers/gpu/drm/amd/amdgpu/psp_v13_0.h @@ -25,6 +25,8 @@ #include "amdgpu_psp.h" +#define PSP_SPIROM_UPDATE_TIMEOUT 60000 /* 60s */ + void psp_v13_0_set_psp_funcs(struct psp_context *psp); #endif -- 2.34.1
