From 94cb4b635fba4c01b58f36a6d3384db729e4c9f6 Mon Sep 17 00:00:00 2001 From: Mahantesh Kumbar Date: Thu, 15 Jun 2017 22:10:43 +0530 Subject: gpu: nvgpu: use nvgpu_flcn_* interfaces - set nvgpu_flcn_reset() to point to gk20a_pmu_reset() - set PMU interrupt using nvgpu_flcn_enable_irq() - replace pmu_idle with nvgpu_flcn_wait_idle() JIRA NVGPU-57 Change-Id: I50d0310ae78ad266da3c1e662f1598d61ff7abb6 Signed-off-by: Mahantesh Kumbar Reviewed-on: http://git-master/r/1469478 Reviewed-by: mobile promotions Tested-by: mobile promotions --- drivers/gpu/nvgpu/gk20a/pmu_gk20a.c | 118 ++++++++++-------------------------- 1 file changed, 33 insertions(+), 85 deletions(-) (limited to 'drivers/gpu/nvgpu/gk20a/pmu_gk20a.c') diff --git a/drivers/gpu/nvgpu/gk20a/pmu_gk20a.c b/drivers/gpu/nvgpu/gk20a/pmu_gk20a.c index 2f8e456f..fefa77fc 100644 --- a/drivers/gpu/nvgpu/gk20a/pmu_gk20a.c +++ b/drivers/gpu/nvgpu/gk20a/pmu_gk20a.c @@ -200,38 +200,11 @@ void pmu_copy_to_dmem(struct nvgpu_pmu *pmu, return; } -int pmu_idle(struct nvgpu_pmu *pmu) -{ - struct gk20a *g = gk20a_from_pmu(pmu); - struct nvgpu_timeout timeout; - u32 idle_stat; - - nvgpu_timeout_init(g, &timeout, 2000, NVGPU_TIMER_RETRY_TIMER); - - /* wait for pmu idle */ - do { - idle_stat = gk20a_readl(g, pwr_falcon_idlestate_r()); - - if (pwr_falcon_idlestate_falcon_busy_v(idle_stat) == 0 && - pwr_falcon_idlestate_ext_busy_v(idle_stat) == 0) { - break; - } - - if (nvgpu_timeout_expired_msg(&timeout, - "waiting for pmu idle: 0x%08x", - idle_stat)) - return -EBUSY; - - nvgpu_usleep_range(100, 200); - } while (1); - - gk20a_dbg_fn("done"); - return 0; -} - void pmu_enable_irq(struct nvgpu_pmu *pmu, bool enable) { struct gk20a *g = gk20a_from_pmu(pmu); + u32 intr_mask; + u32 intr_dest; gk20a_dbg_fn(""); @@ -240,21 +213,11 @@ void pmu_enable_irq(struct nvgpu_pmu *pmu, bool enable) g->ops.mc.intr_unit_config(g, MC_INTR_UNIT_DISABLE, false, mc_intr_mask_1_pmu_enabled_f()); - gk20a_writel(g, pwr_falcon_irqmclr_r(), - pwr_falcon_irqmclr_gptmr_f(1) | - pwr_falcon_irqmclr_wdtmr_f(1) | - pwr_falcon_irqmclr_mthd_f(1) | - pwr_falcon_irqmclr_ctxsw_f(1) | - pwr_falcon_irqmclr_halt_f(1) | - pwr_falcon_irqmclr_exterr_f(1) | - pwr_falcon_irqmclr_swgen0_f(1) | - pwr_falcon_irqmclr_swgen1_f(1) | - pwr_falcon_irqmclr_ext_f(0xff)); + nvgpu_flcn_set_irq(pmu->flcn, false, 0x0, 0x0); if (enable) { /* dest 0=falcon, 1=host; level 0=irq0, 1=irq1 */ - gk20a_writel(g, pwr_falcon_irqdest_r(), - pwr_falcon_irqdest_host_gptmr_f(0) | + intr_dest = pwr_falcon_irqdest_host_gptmr_f(0) | pwr_falcon_irqdest_host_wdtmr_f(1) | pwr_falcon_irqdest_host_mthd_f(0) | pwr_falcon_irqdest_host_ctxsw_f(0) | @@ -271,18 +234,19 @@ void pmu_enable_irq(struct nvgpu_pmu *pmu, bool enable) pwr_falcon_irqdest_target_exterr_f(0) | pwr_falcon_irqdest_target_swgen0_f(0) | pwr_falcon_irqdest_target_swgen1_f(0) | - pwr_falcon_irqdest_target_ext_f(0xff)); + pwr_falcon_irqdest_target_ext_f(0xff); /* 0=disable, 1=enable */ - gk20a_writel(g, pwr_falcon_irqmset_r(), - pwr_falcon_irqmset_gptmr_f(1) | + intr_mask = pwr_falcon_irqmset_gptmr_f(1) | pwr_falcon_irqmset_wdtmr_f(1) | pwr_falcon_irqmset_mthd_f(0) | pwr_falcon_irqmset_ctxsw_f(0) | pwr_falcon_irqmset_halt_f(1) | pwr_falcon_irqmset_exterr_f(1) | pwr_falcon_irqmset_swgen0_f(1) | - pwr_falcon_irqmset_swgen1_f(1)); + pwr_falcon_irqmset_swgen1_f(1); + + nvgpu_flcn_set_irq(pmu->flcn, true, intr_mask, intr_dest); g->ops.mc.intr_unit_config(g, MC_INTR_UNIT_ENABLE, true, mc_intr_mask_0_pmu_enabled_f()); @@ -295,6 +259,7 @@ int pmu_enable_hw(struct nvgpu_pmu *pmu, bool enable) { struct gk20a *g = gk20a_from_pmu(pmu); struct nvgpu_timeout timeout; + int err = 0; gk20a_dbg_fn(""); @@ -313,13 +278,9 @@ int pmu_enable_hw(struct nvgpu_pmu *pmu, bool enable) PMU_MEM_SCRUBBING_TIMEOUT_DEFAULT, NVGPU_TIMER_RETRY_TIMER); do { - u32 w = gk20a_readl(g, pwr_falcon_dmactl_r()) & - (pwr_falcon_dmactl_dmem_scrubbing_m() | - pwr_falcon_dmactl_imem_scrubbing_m()); - - if (!w) { + if (nvgpu_flcn_get_mem_scrubbing_status(pmu->flcn)) { gk20a_dbg_fn("done"); - return 0; + goto exit; } nvgpu_udelay(PMU_MEM_SCRUBBING_TIMEOUT_DEFAULT); } while (!nvgpu_timeout_expired(&timeout)); @@ -327,11 +288,12 @@ int pmu_enable_hw(struct nvgpu_pmu *pmu, bool enable) g->ops.mc.disable(g, mc_enable_pwr_enabled_f()); nvgpu_err(g, "Falcon mem scrubbing timeout"); - return -ETIMEDOUT; - } else { + err = -ETIMEDOUT; + } else g->ops.mc.disable(g, mc_enable_pwr_enabled_f()); - return 0; - } + +exit: + return err; } static int pmu_enable(struct nvgpu_pmu *pmu, bool enable) @@ -357,7 +319,7 @@ static int pmu_enable(struct nvgpu_pmu *pmu, bool enable) /* TBD: post reset */ - err = pmu_idle(pmu); + err = nvgpu_flcn_wait_idle(pmu->flcn); if (err) return err; @@ -368,31 +330,6 @@ static int pmu_enable(struct nvgpu_pmu *pmu, bool enable) return 0; } -int pmu_reset(struct nvgpu_pmu *pmu) -{ - int err; - - err = pmu_idle(pmu); - if (err) - return err; - - /* TBD: release pmu hw mutex */ - - err = pmu_enable(pmu, false); - if (err) - return err; - - /* TBD: cancel all sequences */ - /* TBD: init all sequences and state tables */ - /* TBD: restore pre-init message handler */ - - err = pmu_enable(pmu, true); - if (err) - return err; - - return 0; -} - int pmu_bootstrap(struct nvgpu_pmu *pmu) { struct gk20a *g = gk20a_from_pmu(pmu); @@ -704,7 +641,7 @@ static int gk20a_init_pmu_setup_hw1(struct gk20a *g) gk20a_dbg_fn(""); nvgpu_mutex_acquire(&pmu->isr_mutex); - g->ops.pmu.reset(g); + nvgpu_flcn_reset(pmu->flcn); pmu->isr_enabled = true; nvgpu_mutex_release(&pmu->isr_mutex); @@ -737,11 +674,22 @@ static void gk20a_write_dmatrfbase(struct gk20a *g, u32 addr) int gk20a_pmu_reset(struct gk20a *g) { - int err; struct nvgpu_pmu *pmu = &g->pmu; + int err; + + err = nvgpu_flcn_wait_idle(pmu->flcn); + if (err) + goto exit; + + err = pmu_enable(pmu, false); + if (err) + goto exit; - err = pmu_reset(pmu); + err = pmu_enable(pmu, true); + if (err) + goto exit; +exit: return err; } @@ -799,7 +747,7 @@ void gk20a_init_pmu_ops(struct gpu_ops *gops) gops->pmu.alloc_blob_space = NULL; gops->pmu.pmu_populate_loader_cfg = NULL; gops->pmu.flcn_populate_bl_dmem_desc = NULL; - gops->pmu.reset = gk20a_pmu_reset; + gops->pmu.reset = NULL; } static void pmu_handle_zbc_msg(struct gk20a *g, struct pmu_msg *msg, -- cgit v1.2.2