diff options
Diffstat (limited to 'drivers/gpu/drm/amd/display/dmub/src/dmub_srv.c')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dmub/src/dmub_srv.c | 182 |
1 files changed, 126 insertions, 56 deletions
diff --git a/drivers/gpu/drm/amd/display/dmub/src/dmub_srv.c b/drivers/gpu/drm/amd/display/dmub/src/dmub_srv.c index 61f64a295f06..1cbb125b4063 100644 --- a/drivers/gpu/drm/amd/display/dmub/src/dmub_srv.c +++ b/drivers/gpu/drm/amd/display/dmub/src/dmub_srv.c @@ -46,8 +46,8 @@ /* Context size. */ #define DMUB_CONTEXT_SIZE (512 * 1024) -/* Mailbox size */ -#define DMUB_MAILBOX_SIZE (DMUB_RB_SIZE) +/* Mailbox size : Ring buffers are required for both inbox and outbox */ +#define DMUB_MAILBOX_SIZE ((2 * DMUB_RB_SIZE)) /* Default state size if meta is absent. */ #define DMUB_FW_STATE_SIZE (64 * 1024) @@ -55,6 +55,7 @@ /* Default tracebuffer size if meta is absent. */ #define DMUB_TRACE_BUFFER_SIZE (64 * 1024) + /* Default scratch mem size. */ #define DMUB_SCRATCH_MEM_SIZE (256) @@ -69,6 +70,8 @@ #define DMUB_CW5_BASE (0x65000000) #define DMUB_CW6_BASE (0x66000000) +#define DMUB_REGION5_BASE (0xA0000000) + static inline uint32_t dmub_align(uint32_t val, uint32_t factor) { return (val + factor - 1) / factor * factor; @@ -157,6 +160,16 @@ static bool dmub_srv_hw_setup(struct dmub_srv *dmub, enum dmub_asic asic) funcs->enable_dmub_boot_options = dmub_dcn20_enable_dmub_boot_options; funcs->skip_dmub_panel_power_sequence = dmub_dcn20_skip_dmub_panel_power_sequence; + // Out mailbox register access functions for RN and above + funcs->setup_out_mailbox = dmub_dcn20_setup_out_mailbox; + funcs->get_outbox1_wptr = dmub_dcn20_get_outbox1_wptr; + funcs->set_outbox1_rptr = dmub_dcn20_set_outbox1_rptr; + + //outbox0 call stacks + funcs->setup_outbox0 = dmub_dcn20_setup_outbox0; + funcs->get_outbox0_wptr = dmub_dcn20_get_outbox0_wptr; + funcs->set_outbox0_rptr = dmub_dcn20_set_outbox0_rptr; + if (asic == DMUB_ASIC_DCN21) { dmub->regs = &dmub_srv_dcn21_regs; @@ -395,13 +408,19 @@ enum dmub_status dmub_srv_hw_init(struct dmub_srv *dmub, struct dmub_fb *fw_state_fb = params->fb[DMUB_WINDOW_6_FW_STATE]; struct dmub_fb *scratch_mem_fb = params->fb[DMUB_WINDOW_7_SCRATCH_MEM]; - struct dmub_rb_init_params rb_params; + struct dmub_rb_init_params rb_params, outbox0_rb_params; struct dmub_window cw0, cw1, cw2, cw3, cw4, cw5, cw6; - struct dmub_region inbox1; + struct dmub_region inbox1, outbox1, outbox0; if (!dmub->sw_init) return DMUB_STATUS_INVALID; + if (!inst_fb || !stack_fb || !data_fb || !bios_fb || !mail_fb || + !tracebuff_fb || !fw_state_fb || !scratch_mem_fb) { + ASSERT(0); + return DMUB_STATUS_INVALID; + } + dmub->fb_base = params->fb_base; dmub->fb_offset = params->fb_offset; dmub->psp_version = params->psp_version; @@ -409,72 +428,91 @@ enum dmub_status dmub_srv_hw_init(struct dmub_srv *dmub, if (dmub->hw_funcs.reset) dmub->hw_funcs.reset(dmub); - if (inst_fb && data_fb) { - cw0.offset.quad_part = inst_fb->gpu_addr; - cw0.region.base = DMUB_CW0_BASE; - cw0.region.top = cw0.region.base + inst_fb->size - 1; - - cw1.offset.quad_part = stack_fb->gpu_addr; - cw1.region.base = DMUB_CW1_BASE; - cw1.region.top = cw1.region.base + stack_fb->size - 1; - - if (params->load_inst_const && dmub->hw_funcs.backdoor_load) { - /** - * Read back all the instruction memory so we don't hang the - * DMCUB when backdoor loading if the write from x86 hasn't been - * flushed yet. This only occurs in backdoor loading. - */ - dmub_flush_buffer_mem(inst_fb); - dmub->hw_funcs.backdoor_load(dmub, &cw0, &cw1); - } + cw0.offset.quad_part = inst_fb->gpu_addr; + cw0.region.base = DMUB_CW0_BASE; + cw0.region.top = cw0.region.base + inst_fb->size - 1; + + cw1.offset.quad_part = stack_fb->gpu_addr; + cw1.region.base = DMUB_CW1_BASE; + cw1.region.top = cw1.region.base + stack_fb->size - 1; + if (params->load_inst_const && dmub->hw_funcs.backdoor_load) { + /** + * Read back all the instruction memory so we don't hang the + * DMCUB when backdoor loading if the write from x86 hasn't been + * flushed yet. This only occurs in backdoor loading. + */ + dmub_flush_buffer_mem(inst_fb); + dmub->hw_funcs.backdoor_load(dmub, &cw0, &cw1); } - if (inst_fb && data_fb && bios_fb && mail_fb && tracebuff_fb && - fw_state_fb && scratch_mem_fb) { - cw2.offset.quad_part = data_fb->gpu_addr; - cw2.region.base = DMUB_CW0_BASE + inst_fb->size; - cw2.region.top = cw2.region.base + data_fb->size; + cw2.offset.quad_part = data_fb->gpu_addr; + cw2.region.base = DMUB_CW0_BASE + inst_fb->size; + cw2.region.top = cw2.region.base + data_fb->size; + + cw3.offset.quad_part = bios_fb->gpu_addr; + cw3.region.base = DMUB_CW3_BASE; + cw3.region.top = cw3.region.base + bios_fb->size; + + cw4.offset.quad_part = mail_fb->gpu_addr; + cw4.region.base = DMUB_CW4_BASE; + cw4.region.top = cw4.region.base + mail_fb->size; - cw3.offset.quad_part = bios_fb->gpu_addr; - cw3.region.base = DMUB_CW3_BASE; - cw3.region.top = cw3.region.base + bios_fb->size; + /** + * Doubled the mailbox region to accomodate inbox and outbox. + * Note: Currently, currently total mailbox size is 16KB. It is split + * equally into 8KB between inbox and outbox. If this config is + * changed, then uncached base address configuration of outbox1 + * has to be updated in funcs->setup_out_mailbox. + */ + inbox1.base = cw4.region.base; + inbox1.top = cw4.region.base + DMUB_RB_SIZE; + outbox1.base = inbox1.top; + outbox1.top = cw4.region.top; - cw4.offset.quad_part = mail_fb->gpu_addr; - cw4.region.base = DMUB_CW4_BASE; - cw4.region.top = cw4.region.base + mail_fb->size; + cw5.offset.quad_part = tracebuff_fb->gpu_addr; + cw5.region.base = DMUB_CW5_BASE; + cw5.region.top = cw5.region.base + tracebuff_fb->size; - inbox1.base = cw4.region.base; - inbox1.top = cw4.region.top; + outbox0.base = DMUB_REGION5_BASE + TRACE_BUFFER_ENTRY_OFFSET; + outbox0.top = outbox0.base + tracebuff_fb->size - TRACE_BUFFER_ENTRY_OFFSET; - cw5.offset.quad_part = tracebuff_fb->gpu_addr; - cw5.region.base = DMUB_CW5_BASE; - cw5.region.top = cw5.region.base + tracebuff_fb->size; + cw6.offset.quad_part = fw_state_fb->gpu_addr; + cw6.region.base = DMUB_CW6_BASE; + cw6.region.top = cw6.region.base + fw_state_fb->size; - cw6.offset.quad_part = fw_state_fb->gpu_addr; - cw6.region.base = DMUB_CW6_BASE; - cw6.region.top = cw6.region.base + fw_state_fb->size; + dmub->fw_state = fw_state_fb->cpu_addr; - dmub->fw_state = fw_state_fb->cpu_addr; + dmub->scratch_mem_fb = *scratch_mem_fb; - dmub->scratch_mem_fb = *scratch_mem_fb; + if (dmub->hw_funcs.setup_windows) + dmub->hw_funcs.setup_windows(dmub, &cw2, &cw3, &cw4, &cw5, &cw6); - if (dmub->hw_funcs.setup_windows) - dmub->hw_funcs.setup_windows(dmub, &cw2, &cw3, &cw4, - &cw5, &cw6); + if (dmub->hw_funcs.setup_outbox0) + dmub->hw_funcs.setup_outbox0(dmub, &outbox0); - if (dmub->hw_funcs.setup_mailbox) - dmub->hw_funcs.setup_mailbox(dmub, &inbox1); - } + if (dmub->hw_funcs.setup_mailbox) + dmub->hw_funcs.setup_mailbox(dmub, &inbox1); + if (dmub->hw_funcs.setup_out_mailbox) + dmub->hw_funcs.setup_out_mailbox(dmub, &outbox1); - if (mail_fb) { - dmub_memset(&rb_params, 0, sizeof(rb_params)); - rb_params.ctx = dmub; - rb_params.base_address = mail_fb->cpu_addr; - rb_params.capacity = DMUB_RB_SIZE; + dmub_memset(&rb_params, 0, sizeof(rb_params)); + rb_params.ctx = dmub; + rb_params.base_address = mail_fb->cpu_addr; + rb_params.capacity = DMUB_RB_SIZE; + dmub_rb_init(&dmub->inbox1_rb, &rb_params); - dmub_rb_init(&dmub->inbox1_rb, &rb_params); - } + // Initialize outbox1 ring buffer + rb_params.ctx = dmub; + rb_params.base_address = (void *) ((uint8_t *) (mail_fb->cpu_addr) + DMUB_RB_SIZE); + rb_params.capacity = DMUB_RB_SIZE; + dmub_rb_init(&dmub->outbox1_rb, &rb_params); + + dmub_memset(&outbox0_rb_params, 0, sizeof(outbox0_rb_params)); + outbox0_rb_params.ctx = dmub; + outbox0_rb_params.base_address = (void *)((uintptr_t)(tracebuff_fb->cpu_addr) + TRACE_BUFFER_ENTRY_OFFSET); + outbox0_rb_params.capacity = tracebuff_fb->size - dmub_align(TRACE_BUFFER_ENTRY_OFFSET, 64); + dmub_rb_init(&dmub->outbox0_rb, &outbox0_rb_params); if (dmub->hw_funcs.reset_release) dmub->hw_funcs.reset_release(dmub); @@ -609,6 +647,8 @@ dmub_srv_send_gpint_command(struct dmub_srv *dmub, dmub->hw_funcs.set_gpint(dmub, reg); for (i = 0; i < timeout_us; ++i) { + udelay(1); + if (dmub->hw_funcs.is_gpint_acked(dmub, reg)) return DMUB_STATUS_OK; } @@ -674,3 +714,33 @@ enum dmub_status dmub_srv_cmd_with_reply_data(struct dmub_srv *dmub, return status; } + +static inline bool dmub_rb_out_trace_buffer_front(struct dmub_rb *rb, + void *entry) +{ + const uint64_t *src = (const uint64_t *)(rb->base_address) + rb->rptr / sizeof(uint64_t); + uint64_t *dst = (uint64_t *)entry; + uint8_t i; + uint8_t loop_count; + + if (rb->rptr == rb->wrpt) + return false; + + loop_count = sizeof(struct dmcub_trace_buf_entry) / sizeof(uint64_t); + // copying data + for (i = 0; i < loop_count; i++) + *dst++ = *src++; + + rb->rptr += sizeof(struct dmcub_trace_buf_entry); + + rb->rptr %= rb->capacity; + + return true; +} + +bool dmub_srv_get_outbox0_msg(struct dmub_srv *dmub, struct dmcub_trace_buf_entry *entry) +{ + dmub->outbox0_rb.wrpt = dmub->hw_funcs.get_outbox0_wptr(dmub); + + return dmub_rb_out_trace_buffer_front(&dmub->outbox0_rb, (void *)entry); +} |