From: Jun Lei <[email protected]> [why] HW recommend we enable this for better DF QoS for NV32
[how] Add interfaces to hubbub to program register Add initialization as part of init_hw Add default settings for NV32 Add registry override for debug/tuning Reviewed-by: Alvin Lee <[email protected]> Acked-by: Tom Chung <[email protected]> Signed-off-by: Jun Lei <[email protected]> --- drivers/gpu/drm/amd/display/dc/dc.h | 1 + .../drm/amd/display/dc/dcn10/dcn10_hubbub.h | 4 +++- .../drm/amd/display/dc/dcn32/dcn32_hubbub.c | 18 ++++++++++++++++++ .../drm/amd/display/dc/dcn32/dcn32_hubbub.h | 8 ++++++-- .../gpu/drm/amd/display/dc/dcn32/dcn32_hwseq.c | 3 +++ .../drm/amd/display/dc/dcn32/dcn32_resource.c | 3 +++ .../drm/amd/display/dc/dcn32/dcn32_resource.h | 3 ++- .../gpu/drm/amd/display/dc/inc/hw/dchubbub.h | 1 + 8 files changed, 37 insertions(+), 4 deletions(-) diff --git a/drivers/gpu/drm/amd/display/dc/dc.h b/drivers/gpu/drm/amd/display/dc/dc.h index caed5597d1dc..009dab94310e 100644 --- a/drivers/gpu/drm/amd/display/dc/dc.h +++ b/drivers/gpu/drm/amd/display/dc/dc.h @@ -408,6 +408,7 @@ struct dc_config { bool use_default_clock_table; bool force_bios_enable_lttpr; uint8_t force_bios_fixed_vs; + int sdpif_request_limit_words_per_umc; }; diff --git a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hubbub.h b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hubbub.h index e48fd044f572..ba1c0621f0f8 100644 --- a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hubbub.h +++ b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hubbub.h @@ -171,6 +171,7 @@ struct dcn_hubbub_registers { uint32_t DCHUBBUB_ARB_FCLK_PSTATE_CHANGE_WATERMARK_B; uint32_t DCHUBBUB_ARB_FCLK_PSTATE_CHANGE_WATERMARK_C; uint32_t DCHUBBUB_ARB_FCLK_PSTATE_CHANGE_WATERMARK_D; + uint32_t SDPIF_REQUEST_RATE_LIMIT; }; #define HUBBUB_REG_FIELD_LIST_DCN32(type) \ @@ -360,7 +361,8 @@ struct dcn_hubbub_registers { type DCHUBBUB_ARB_ALLOW_SR_ENTER_WATERMARK_Z8_C;\ type DCHUBBUB_ARB_ALLOW_SR_EXIT_WATERMARK_Z8_C;\ type DCHUBBUB_ARB_ALLOW_SR_ENTER_WATERMARK_Z8_D;\ - type DCHUBBUB_ARB_ALLOW_SR_EXIT_WATERMARK_Z8_D + type DCHUBBUB_ARB_ALLOW_SR_EXIT_WATERMARK_Z8_D;\ + type SDPIF_REQUEST_RATE_LIMIT struct dcn_hubbub_shift { diff --git a/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_hubbub.c b/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_hubbub.c index a88a71460521..5947c2cb0f30 100644 --- a/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_hubbub.c +++ b/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_hubbub.c @@ -72,6 +72,23 @@ static void dcn32_init_crb(struct hubbub *hubbub) REG_UPDATE(DCHUBBUB_DEBUG_CTRL_0, DET_DEPTH, 0x47F); } +void hubbub32_set_request_limit(struct hubbub *hubbub, int memory_channel_count, int words_per_channel) +{ + struct dcn20_hubbub *hubbub2 = TO_DCN20_HUBBUB(hubbub); + + uint32_t request_limit = 3 * memory_channel_count * words_per_channel / 4; + + ASSERT((request_limit & (~0xFFF)) == 0); //field is only 24 bits long + ASSERT(request_limit > 0); //field is only 24 bits long + + if (request_limit > 0xFFF) + request_limit = 0xFFF; + + if (request_limit > 0) + REG_UPDATE(SDPIF_REQUEST_RATE_LIMIT, SDPIF_REQUEST_RATE_LIMIT, request_limit); +} + + void dcn32_program_det_size(struct hubbub *hubbub, int hubp_inst, unsigned int det_buffer_size_in_kbyte) { struct dcn20_hubbub *hubbub2 = TO_DCN20_HUBBUB(hubbub); @@ -949,6 +966,7 @@ static const struct hubbub_funcs hubbub32_funcs = { .init_crb = dcn32_init_crb, .hubbub_read_state = hubbub2_read_state, .force_usr_retraining_allow = hubbub32_force_usr_retraining_allow, + .set_request_limit = hubbub32_set_request_limit }; void hubbub32_construct(struct dcn20_hubbub *hubbub2, diff --git a/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_hubbub.h b/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_hubbub.h index cda94e0e31bf..786f9ce07f92 100644 --- a/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_hubbub.h +++ b/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_hubbub.h @@ -82,7 +82,8 @@ SR(DCN_VM_FAULT_ADDR_MSB),\ SR(DCN_VM_FAULT_ADDR_LSB),\ SR(DCN_VM_FAULT_CNTL),\ - SR(DCN_VM_FAULT_STATUS) + SR(DCN_VM_FAULT_STATUS),\ + SR(SDPIF_REQUEST_RATE_LIMIT) #define HUBBUB_MASK_SH_LIST_DCN32(mask_sh)\ HUBBUB_SF(DCHUBBUB_GLOBAL_TIMER_CNTL, DCHUBBUB_GLOBAL_TIMER_ENABLE, mask_sh), \ @@ -159,7 +160,8 @@ HUBBUB_SF(DCN_VM_FAULT_STATUS, DCN_VM_ERROR_VMID, mask_sh), \ HUBBUB_SF(DCN_VM_FAULT_STATUS, DCN_VM_ERROR_TABLE_LEVEL, mask_sh), \ HUBBUB_SF(DCN_VM_FAULT_STATUS, DCN_VM_ERROR_PIPE, mask_sh), \ - HUBBUB_SF(DCN_VM_FAULT_STATUS, DCN_VM_ERROR_INTERRUPT_STATUS, mask_sh) + HUBBUB_SF(DCN_VM_FAULT_STATUS, DCN_VM_ERROR_INTERRUPT_STATUS, mask_sh),\ + HUBBUB_SF(SDPIF_REQUEST_RATE_LIMIT, SDPIF_REQUEST_RATE_LIMIT, mask_sh) bool hubbub32_program_urgent_watermarks( struct hubbub *hubbub, @@ -200,4 +202,6 @@ void hubbub32_construct(struct dcn20_hubbub *hubbub2, int pixel_chunk_size_kb, int config_return_buffer_size_kb); +void hubbub32_set_request_limit(struct hubbub *hubbub, int umc_count, int words_per_umc); + #endif diff --git a/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_hwseq.c b/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_hwseq.c index 5e0018efe055..c8fb28f09de3 100644 --- a/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_hwseq.c +++ b/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_hwseq.c @@ -984,6 +984,9 @@ void dcn32_init_hw(struct dc *dc) if (dc->res_pool->hubbub->funcs->init_crb) dc->res_pool->hubbub->funcs->init_crb(dc->res_pool->hubbub); + if (dc->res_pool->hubbub->funcs->set_request_limit && dc->config.sdpif_request_limit_words_per_umc > 0) + dc->res_pool->hubbub->funcs->set_request_limit(dc->res_pool->hubbub, dc->ctx->dc_bios->vram_info.num_chans, dc->config.sdpif_request_limit_words_per_umc); + // Get DMCUB capabilities if (dc->ctx->dmub_srv) { dc_dmub_srv_query_caps_cmd(dc->ctx->dmub_srv->dmub); diff --git a/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_resource.c b/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_resource.c index 77e40ee488bd..08d3c9d9b251 100644 --- a/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_resource.c +++ b/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_resource.c @@ -2413,6 +2413,9 @@ static bool dcn32_resource_construct( pool->base.oem_device = NULL; } + if (ASICREV_IS_GC_11_0_3(dc->ctx->asic_id.hw_internal_rev) && (dc->config.sdpif_request_limit_words_per_umc == 0)) + dc->config.sdpif_request_limit_words_per_umc = 16; + DC_FP_END(); return true; diff --git a/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_resource.h b/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_resource.h index f76120e67c16..f6bc9bd5da31 100644 --- a/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_resource.h +++ b/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_resource.h @@ -1244,7 +1244,8 @@ void dcn32_restore_mall_state(struct dc *dc, SR(DCHUBBUB_ARB_FCLK_PSTATE_CHANGE_WATERMARK_C), \ SR(DCHUBBUB_ARB_FCLK_PSTATE_CHANGE_WATERMARK_D), \ SR(DCN_VM_FAULT_ADDR_MSB), SR(DCN_VM_FAULT_ADDR_LSB), \ - SR(DCN_VM_FAULT_CNTL), SR(DCN_VM_FAULT_STATUS) \ + SR(DCN_VM_FAULT_CNTL), SR(DCN_VM_FAULT_STATUS), \ + SR(SDPIF_REQUEST_RATE_LIMIT) \ ) /* DCCG */ diff --git a/drivers/gpu/drm/amd/display/dc/inc/hw/dchubbub.h b/drivers/gpu/drm/amd/display/dc/inc/hw/dchubbub.h index 58f758fcbce1..f2e1fcb668fb 100644 --- a/drivers/gpu/drm/amd/display/dc/inc/hw/dchubbub.h +++ b/drivers/gpu/drm/amd/display/dc/inc/hw/dchubbub.h @@ -186,6 +186,7 @@ struct hubbub_funcs { void (*program_compbuf_size)(struct hubbub *hubbub, unsigned compbuf_size_kb, bool safe_to_increase); void (*init_crb)(struct hubbub *hubbub); void (*force_usr_retraining_allow)(struct hubbub *hubbub, bool allow); + void (*set_request_limit)(struct hubbub *hubbub, int memory_channel_count, int words_per_channel); }; struct hubbub { -- 2.25.1
