diff options
Diffstat (limited to 'drivers/gpu/drm/etnaviv')
| -rw-r--r-- | drivers/gpu/drm/etnaviv/etnaviv_buffer.c | 81 | ||||
| -rw-r--r-- | drivers/gpu/drm/etnaviv/etnaviv_drv.c | 9 | ||||
| -rw-r--r-- | drivers/gpu/drm/etnaviv/etnaviv_drv.h | 1 | ||||
| -rw-r--r-- | drivers/gpu/drm/etnaviv/etnaviv_dump.c | 6 | ||||
| -rw-r--r-- | drivers/gpu/drm/etnaviv/etnaviv_gpu.c | 233 | ||||
| -rw-r--r-- | drivers/gpu/drm/etnaviv/etnaviv_gpu.h | 4 | ||||
| -rw-r--r-- | drivers/gpu/drm/etnaviv/etnaviv_iommu.c | 15 | ||||
| -rw-r--r-- | drivers/gpu/drm/etnaviv/etnaviv_iommu.h | 10 | ||||
| -rw-r--r-- | drivers/gpu/drm/etnaviv/etnaviv_iommu_v2.c | 261 | ||||
| -rw-r--r-- | drivers/gpu/drm/etnaviv/etnaviv_iommu_v2.h | 25 | ||||
| -rw-r--r-- | drivers/gpu/drm/etnaviv/etnaviv_mmu.c | 149 | ||||
| -rw-r--r-- | drivers/gpu/drm/etnaviv/etnaviv_mmu.h | 9 | ||||
| -rw-r--r-- | drivers/gpu/drm/etnaviv/state_hi.xml.h | 9 |
13 files changed, 585 insertions, 227 deletions
diff --git a/drivers/gpu/drm/etnaviv/etnaviv_buffer.c b/drivers/gpu/drm/etnaviv/etnaviv_buffer.c index d8d556457427..cb86c7e5495c 100644 --- a/drivers/gpu/drm/etnaviv/etnaviv_buffer.c +++ b/drivers/gpu/drm/etnaviv/etnaviv_buffer.c @@ -21,6 +21,7 @@ #include "common.xml.h" #include "state.xml.h" +#include "state_hi.xml.h" #include "state_3d.xml.h" #include "cmdstream.xml.h" @@ -117,11 +118,6 @@ static void etnaviv_cmd_select_pipe(struct etnaviv_gpu *gpu, VIVS_GL_PIPE_SELECT_PIPE(pipe)); } -static u32 gpu_va(struct etnaviv_gpu *gpu, struct etnaviv_cmdbuf *buf) -{ - return buf->paddr - gpu->memory_base; -} - static void etnaviv_buffer_dump(struct etnaviv_gpu *gpu, struct etnaviv_cmdbuf *buf, u32 off, u32 len) { @@ -129,7 +125,7 @@ static void etnaviv_buffer_dump(struct etnaviv_gpu *gpu, u32 *ptr = buf->vaddr + off; dev_info(gpu->dev, "virt %p phys 0x%08x free 0x%08x\n", - ptr, gpu_va(gpu, buf) + off, size - len * 4 - off); + ptr, etnaviv_iommu_get_cmdbuf_va(gpu, buf) + off, size - len * 4 - off); print_hex_dump(KERN_INFO, "cmd ", DUMP_PREFIX_OFFSET, 16, 4, ptr, len * 4, 0); @@ -162,7 +158,7 @@ static u32 etnaviv_buffer_reserve(struct etnaviv_gpu *gpu, if (buffer->user_size + cmd_dwords * sizeof(u64) > buffer->size) buffer->user_size = 0; - return gpu_va(gpu, buffer) + buffer->user_size; + return etnaviv_iommu_get_cmdbuf_va(gpu, buffer) + buffer->user_size; } u16 etnaviv_buffer_init(struct etnaviv_gpu *gpu) @@ -173,7 +169,41 @@ u16 etnaviv_buffer_init(struct etnaviv_gpu *gpu) buffer->user_size = 0; CMD_WAIT(buffer); - CMD_LINK(buffer, 2, gpu_va(gpu, buffer) + buffer->user_size - 4); + CMD_LINK(buffer, 2, etnaviv_iommu_get_cmdbuf_va(gpu, buffer) + + buffer->user_size - 4); + + return buffer->user_size / 8; +} + +u16 etnaviv_buffer_config_mmuv2(struct etnaviv_gpu *gpu, u32 mtlb_addr, u32 safe_addr) +{ + struct etnaviv_cmdbuf *buffer = gpu->buffer; + + buffer->user_size = 0; + + if (gpu->identity.features & chipFeatures_PIPE_3D) { + CMD_LOAD_STATE(buffer, VIVS_GL_PIPE_SELECT, + VIVS_GL_PIPE_SELECT_PIPE(ETNA_PIPE_3D)); + CMD_LOAD_STATE(buffer, VIVS_MMUv2_CONFIGURATION, + mtlb_addr | VIVS_MMUv2_CONFIGURATION_MODE_MODE4_K); + CMD_LOAD_STATE(buffer, VIVS_MMUv2_SAFE_ADDRESS, safe_addr); + CMD_SEM(buffer, SYNC_RECIPIENT_FE, SYNC_RECIPIENT_PE); + CMD_STALL(buffer, SYNC_RECIPIENT_FE, SYNC_RECIPIENT_PE); + } + + if (gpu->identity.features & chipFeatures_PIPE_2D) { + CMD_LOAD_STATE(buffer, VIVS_GL_PIPE_SELECT, + VIVS_GL_PIPE_SELECT_PIPE(ETNA_PIPE_2D)); + CMD_LOAD_STATE(buffer, VIVS_MMUv2_CONFIGURATION, + mtlb_addr | VIVS_MMUv2_CONFIGURATION_MODE_MODE4_K); + CMD_LOAD_STATE(buffer, VIVS_MMUv2_SAFE_ADDRESS, safe_addr); + CMD_SEM(buffer, SYNC_RECIPIENT_FE, SYNC_RECIPIENT_PE); + CMD_STALL(buffer, SYNC_RECIPIENT_FE, SYNC_RECIPIENT_PE); + } + + CMD_END(buffer); + + buffer->user_size = ALIGN(buffer->user_size, 8); return buffer->user_size / 8; } @@ -231,7 +261,7 @@ void etnaviv_buffer_queue(struct etnaviv_gpu *gpu, unsigned int event, if (drm_debug & DRM_UT_DRIVER) etnaviv_buffer_dump(gpu, buffer, 0, 0x50); - link_target = gpu_va(gpu, cmdbuf); + link_target = etnaviv_iommu_get_cmdbuf_va(gpu, cmdbuf); link_dwords = cmdbuf->size / 8; /* @@ -246,8 +276,12 @@ void etnaviv_buffer_queue(struct etnaviv_gpu *gpu, unsigned int event, extra_dwords = 1; /* flush command */ - if (gpu->mmu->need_flush) - extra_dwords += 1; + if (gpu->mmu->need_flush) { + if (gpu->mmu->version == ETNAVIV_IOMMU_V1) + extra_dwords += 1; + else + extra_dwords += 3; + } /* pipe switch commands */ if (gpu->switch_context) @@ -257,12 +291,23 @@ void etnaviv_buffer_queue(struct etnaviv_gpu *gpu, unsigned int event, if (gpu->mmu->need_flush) { /* Add the MMU flush */ - CMD_LOAD_STATE(buffer, VIVS_GL_FLUSH_MMU, - VIVS_GL_FLUSH_MMU_FLUSH_FEMMU | - VIVS_GL_FLUSH_MMU_FLUSH_UNK1 | - VIVS_GL_FLUSH_MMU_FLUSH_UNK2 | - VIVS_GL_FLUSH_MMU_FLUSH_PEMMU | - VIVS_GL_FLUSH_MMU_FLUSH_UNK4); + if (gpu->mmu->version == ETNAVIV_IOMMU_V1) { + CMD_LOAD_STATE(buffer, VIVS_GL_FLUSH_MMU, + VIVS_GL_FLUSH_MMU_FLUSH_FEMMU | + VIVS_GL_FLUSH_MMU_FLUSH_UNK1 | + VIVS_GL_FLUSH_MMU_FLUSH_UNK2 | + VIVS_GL_FLUSH_MMU_FLUSH_PEMMU | + VIVS_GL_FLUSH_MMU_FLUSH_UNK4); + } else { + CMD_LOAD_STATE(buffer, VIVS_MMUv2_CONFIGURATION, + VIVS_MMUv2_CONFIGURATION_MODE_MASK | + VIVS_MMUv2_CONFIGURATION_ADDRESS_MASK | + VIVS_MMUv2_CONFIGURATION_FLUSH_FLUSH); + CMD_SEM(buffer, SYNC_RECIPIENT_FE, + SYNC_RECIPIENT_PE); + CMD_STALL(buffer, SYNC_RECIPIENT_FE, + SYNC_RECIPIENT_PE); + } gpu->mmu->need_flush = false; } @@ -301,7 +346,7 @@ void etnaviv_buffer_queue(struct etnaviv_gpu *gpu, unsigned int event, if (drm_debug & DRM_UT_DRIVER) pr_info("stream link to 0x%08x @ 0x%08x %p\n", - return_target, gpu_va(gpu, cmdbuf), cmdbuf->vaddr); + return_target, etnaviv_iommu_get_cmdbuf_va(gpu, cmdbuf), cmdbuf->vaddr); if (drm_debug & DRM_UT_DRIVER) { print_hex_dump(KERN_INFO, "cmd ", DUMP_PREFIX_OFFSET, 16, 4, diff --git a/drivers/gpu/drm/etnaviv/etnaviv_drv.c b/drivers/gpu/drm/etnaviv/etnaviv_drv.c index ffd1b32caa8d..aa687669e22b 100644 --- a/drivers/gpu/drm/etnaviv/etnaviv_drv.c +++ b/drivers/gpu/drm/etnaviv/etnaviv_drv.c @@ -488,8 +488,7 @@ static const struct file_operations fops = { }; static struct drm_driver etnaviv_drm_driver = { - .driver_features = DRIVER_HAVE_IRQ | - DRIVER_GEM | + .driver_features = DRIVER_GEM | DRIVER_PRIME | DRIVER_RENDER, .open = etnaviv_open, @@ -530,10 +529,8 @@ static int etnaviv_bind(struct device *dev) int ret; drm = drm_dev_alloc(&etnaviv_drm_driver, dev); - if (!drm) - return -ENOMEM; - - drm->platformdev = to_platform_device(dev); + if (IS_ERR(drm)) + return PTR_ERR(drm); priv = kzalloc(sizeof(*priv), GFP_KERNEL); if (!priv) { diff --git a/drivers/gpu/drm/etnaviv/etnaviv_drv.h b/drivers/gpu/drm/etnaviv/etnaviv_drv.h index 115c5bc6d7c8..65e057639653 100644 --- a/drivers/gpu/drm/etnaviv/etnaviv_drv.h +++ b/drivers/gpu/drm/etnaviv/etnaviv_drv.h @@ -96,6 +96,7 @@ struct drm_gem_object *etnaviv_gem_new(struct drm_device *dev, int etnaviv_gem_new_userptr(struct drm_device *dev, struct drm_file *file, uintptr_t ptr, u32 size, u32 flags, u32 *handle); u16 etnaviv_buffer_init(struct etnaviv_gpu *gpu); +u16 etnaviv_buffer_config_mmuv2(struct etnaviv_gpu *gpu, u32 mtlb_addr, u32 safe_addr); void etnaviv_buffer_end(struct etnaviv_gpu *gpu); void etnaviv_buffer_queue(struct etnaviv_gpu *gpu, unsigned int event, struct etnaviv_cmdbuf *cmdbuf); diff --git a/drivers/gpu/drm/etnaviv/etnaviv_dump.c b/drivers/gpu/drm/etnaviv/etnaviv_dump.c index 4a29eeadbf1e..2bef501d4a17 100644 --- a/drivers/gpu/drm/etnaviv/etnaviv_dump.c +++ b/drivers/gpu/drm/etnaviv/etnaviv_dump.c @@ -175,11 +175,13 @@ void etnaviv_core_dump(struct etnaviv_gpu *gpu) etnaviv_core_dump_registers(&iter, gpu); etnaviv_core_dump_mmu(&iter, gpu, mmu_size); etnaviv_core_dump_mem(&iter, ETDUMP_BUF_RING, gpu->buffer->vaddr, - gpu->buffer->size, gpu->buffer->paddr); + gpu->buffer->size, + etnaviv_iommu_get_cmdbuf_va(gpu, gpu->buffer)); list_for_each_entry(cmd, &gpu->active_cmd_list, node) etnaviv_core_dump_mem(&iter, ETDUMP_BUF_CMD, cmd->vaddr, - cmd->size, cmd->paddr); + cmd->size, + etnaviv_iommu_get_cmdbuf_va(gpu, cmd)); /* Reserve space for the bomap */ if (n_bomap_pages) { diff --git a/drivers/gpu/drm/etnaviv/etnaviv_gpu.c b/drivers/gpu/drm/etnaviv/etnaviv_gpu.c index b382cf505262..b1254f885fed 100644 --- a/drivers/gpu/drm/etnaviv/etnaviv_gpu.c +++ b/drivers/gpu/drm/etnaviv/etnaviv_gpu.c @@ -22,8 +22,6 @@ #include "etnaviv_gpu.h" #include "etnaviv_gem.h" #include "etnaviv_mmu.h" -#include "etnaviv_iommu.h" -#include "etnaviv_iommu_v2.h" #include "common.xml.h" #include "state.xml.h" #include "state_hi.xml.h" @@ -329,6 +327,18 @@ static void etnaviv_hw_identify(struct etnaviv_gpu *gpu) gpu->identity.revision = 0x1051; } } + + /* + * NXP likes to call the GPU on the i.MX6QP GC2000+, but in + * reality it's just a re-branded GC3000. We can identify this + * core by the upper half of the revision register being all 1. + * Fix model/rev here, so all other places can refer to this + * core by its real identity. + */ + if (etnaviv_is_model_rev(gpu, GC2000, 0xffff5450)) { + gpu->identity.model = chipModel_GC3000; + gpu->identity.revision &= 0xffff; + } } dev_info(gpu->dev, "model: GC%x, revision: %x\n", @@ -528,6 +538,14 @@ static void etnaviv_gpu_enable_mlcg(struct etnaviv_gpu *gpu) gpu_write(gpu, VIVS_PM_MODULE_CONTROLS, pmc); } +void etnaviv_gpu_start_fe(struct etnaviv_gpu *gpu, u32 address, u16 prefetch) +{ + gpu_write(gpu, VIVS_FE_COMMAND_ADDRESS, address); + gpu_write(gpu, VIVS_FE_COMMAND_CONTROL, + VIVS_FE_COMMAND_CONTROL_ENABLE | + VIVS_FE_COMMAND_CONTROL_PREFETCH(prefetch)); +} + static void etnaviv_gpu_hw_init(struct etnaviv_gpu *gpu) { u16 prefetch; @@ -568,33 +586,20 @@ static void etnaviv_gpu_hw_init(struct etnaviv_gpu *gpu) gpu_write(gpu, VIVS_MC_BUS_CONFIG, bus_config); } - /* set base addresses */ - gpu_write(gpu, VIVS_MC_MEMORY_BASE_ADDR_RA, gpu->memory_base); - gpu_write(gpu, VIVS_MC_MEMORY_BASE_ADDR_FE, gpu->memory_base); - gpu_write(gpu, VIVS_MC_MEMORY_BASE_ADDR_TX, gpu->memory_base); - gpu_write(gpu, VIVS_MC_MEMORY_BASE_ADDR_PEZ, gpu->memory_base); - gpu_write(gpu, VIVS_MC_MEMORY_BASE_ADDR_PE, gpu->memory_base); - - /* setup the MMU page table pointers */ - etnaviv_iommu_domain_restore(gpu, gpu->mmu->domain); + /* setup the MMU */ + etnaviv_iommu_restore(gpu); /* Start command processor */ prefetch = etnaviv_buffer_init(gpu); gpu_write(gpu, VIVS_HI_INTR_ENBL, ~0U); - gpu_write(gpu, VIVS_FE_COMMAND_ADDRESS, - gpu->buffer->paddr - gpu->memory_base); - gpu_write(gpu, VIVS_FE_COMMAND_CONTROL, - VIVS_FE_COMMAND_CONTROL_ENABLE | - VIVS_FE_COMMAND_CONTROL_PREFETCH(prefetch)); + etnaviv_gpu_start_fe(gpu, etnaviv_iommu_get_cmdbuf_va(gpu, gpu->buffer), + prefetch); } int etnaviv_gpu_init(struct etnaviv_gpu *gpu) { int ret, i; - struct iommu_domain *iommu; - enum etnaviv_iommu_version version; - bool mmuv2; ret = pm_runtime_get_sync(gpu->dev); if (ret < 0) { @@ -642,32 +647,10 @@ int etnaviv_gpu_init(struct etnaviv_gpu *gpu) goto fail; } - /* Setup IOMMU.. eventually we will (I think) do this once per context - * and have separate page tables per context. For now, to keep things - * simple and to get something working, just use a single address space: - */ - mmuv2 = gpu->identity.minor_features1 & chipMinorFeatures1_MMU_VERSION; - dev_dbg(gpu->dev, "mmuv2: %d\n", mmuv2); - - if (!mmuv2) { - iommu = etnaviv_iommu_domain_alloc(gpu); - version = ETNAVIV_IOMMU_V1; - } else { - iommu = etnaviv_iommu_v2_domain_alloc(gpu); - version = ETNAVIV_IOMMU_V2; - } - - if (!iommu) { - dev_err(gpu->dev, "Failed to allocate GPU IOMMU domain\n"); - ret = -ENOMEM; - goto fail; - } - - gpu->mmu = etnaviv_iommu_new(gpu, iommu, version); - if (!gpu->mmu) { + gpu->mmu = etnaviv_iommu_new(gpu); + if (IS_ERR(gpu->mmu)) { dev_err(gpu->dev, "Failed to instantiate GPU IOMMU\n"); - iommu_domain_free(iommu); - ret = -ENOMEM; + ret = PTR_ERR(gpu->mmu); goto fail; } @@ -678,7 +661,9 @@ int etnaviv_gpu_init(struct etnaviv_gpu *gpu) dev_err(gpu->dev, "could not create command buffer\n"); goto destroy_iommu; } - if (gpu->buffer->paddr - gpu->memory_base > 0x80000000) { + + if (gpu->mmu->version == ETNAVIV_IOMMU_V1 && + gpu->buffer->paddr - gpu->memory_base > 0x80000000) { ret = -EINVAL; dev_err(gpu->dev, "command buffer outside valid memory window\n"); @@ -868,45 +853,6 @@ int etnaviv_gpu_debugfs(struct etnaviv_gpu *gpu, struct seq_file *m) #endif /* - * Power Management: - */ -static int enable_clk(struct etnaviv_gpu *gpu) -{ - if (gpu->clk_core) - clk_prepare_enable(gpu->clk_core); - if (gpu->clk_shader) - clk_prepare_enable(gpu->clk_shader); - - return 0; -} - -static int disable_clk(struct etnaviv_gpu *gpu) -{ - if (gpu->clk_core) - clk_disable_unprepare(gpu->clk_core); - if (gpu->clk_shader) - clk_disable_unprepare(gpu->clk_shader); - - return 0; -} - -static int enable_axi(struct etnaviv_gpu *gpu) -{ - if (gpu->clk_bus) - clk_prepare_enable(gpu->clk_bus); - - return 0; -} - -static int disable_axi(struct etnaviv_gpu *gpu) -{ - if (gpu->clk_bus) - clk_disable_unprepare(gpu->clk_bus); - - return 0; -} - -/* * Hangcheck detection for locked gpu: */ static void recover_worker(struct work_struct *work) @@ -945,7 +891,7 @@ static void recover_worker(struct work_struct *work) gpu->completed_fence = gpu->active_fence; etnaviv_gpu_hw_init(gpu); - gpu->switch_context = true; + gpu->lastctx = NULL; gpu->exec_state = -1; mutex_unlock(&gpu->lock); @@ -1178,6 +1124,9 @@ struct etnaviv_cmdbuf *etnaviv_gpu_cmdbuf_new(struct etnaviv_gpu *gpu, u32 size, if (!cmdbuf) return NULL; + if (gpu->mmu->version == ETNAVIV_IOMMU_V2) + size = ALIGN(size, SZ_4K); + cmdbuf->vaddr = dma_alloc_wc(gpu->dev, size, &cmdbuf->paddr, GFP_KERNEL); if (!cmdbuf->vaddr) { @@ -1193,6 +1142,7 @@ struct etnaviv_cmdbuf *etnaviv_gpu_cmdbuf_new(struct etnaviv_gpu *gpu, u32 size, void etnaviv_gpu_cmdbuf_free(struct etnaviv_cmdbuf *cmdbuf) { + etnaviv_iommu_put_cmdbuf_va(cmdbuf->gpu, cmdbuf); dma_free_wc(cmdbuf->gpu->dev, cmdbuf->size, cmdbuf->vaddr, cmdbuf->paddr); kfree(cmdbuf); @@ -1425,6 +1375,21 @@ static irqreturn_t irq_handler(int irq, void *data) intr &= ~VIVS_HI_INTR_ACKNOWLEDGE_AXI_BUS_ERROR; } + if (intr & VIVS_HI_INTR_ACKNOWLEDGE_MMU_EXCEPTION) { + int i; + + dev_err_ratelimited(gpu->dev, + "MMU fault status 0x%08x\n", + gpu_read(gpu, VIVS_MMUv2_STATUS)); + for (i = 0; i < 4; i++) { + dev_err_ratelimited(gpu->dev, + "MMU %d fault addr 0x%08x\n", + i, gpu_read(gpu, + VIVS_MMUv2_EXCEPTION_ADDR(i))); + } + intr &= ~VIVS_HI_INTR_ACKNOWLEDGE_MMU_EXCEPTION; + } + while ((event = ffs(intr)) != 0) { struct fence *fence; @@ -1466,39 +1431,72 @@ static int etnaviv_gpu_clk_enable(struct etnaviv_gpu *gpu) { int ret; - ret = enable_clk(gpu); - if (ret) - return ret; + if (gpu->clk_bus) { + ret = clk_prepare_enable(gpu->clk_bus); + if (ret) + return ret; + } - ret = enable_axi(gpu); - if (ret) { - disable_clk(gpu); - return ret; + if (gpu->clk_core) { + ret = clk_prepare_enable(gpu->clk_core); + if (ret) + goto disable_clk_bus; + } + + if (gpu->clk_shader) { + ret = clk_prepare_enable(gpu->clk_shader); + if (ret) + goto disable_clk_core; } return 0; + +disable_clk_core: + if (gpu->clk_core) + clk_disable_unprepare(gpu->clk_core); +disable_clk_bus: + if (gpu->clk_bus) + clk_disable_unprepare(gpu->clk_bus); + + return ret; } static int etnaviv_gpu_clk_disable(struct etnaviv_gpu *gpu) { - int ret; + if (gpu->clk_shader) + clk_disable_unprepare(gpu->clk_shader); + if (gpu->clk_core) + clk_disable_unprepare(gpu->clk_core); + if (gpu->clk_bus) + clk_disable_unprepare(gpu->clk_bus); - ret = disable_axi(gpu); - if (ret) - return ret; + return 0; +} - ret = disable_clk(gpu); - if (ret) - return ret; +int etnaviv_gpu_wait_idle(struct etnaviv_gpu *gpu, unsigned int timeout_ms) +{ + unsigned long timeout = jiffies + msecs_to_jiffies(timeout_ms); - return 0; + do { + u32 idle = gpu_read(gpu, VIVS_HI_IDLE_STATE); + + if ((idle & gpu->idle_mask) == gpu->idle_mask) + return 0; + + if (time_is_before_jiffies(timeout)) { + dev_warn(gpu->dev, + "timed out waiting for idle: idle=0x%x\n", + idle); + return -ETIMEDOUT; + } + + udelay(5); + } while (1); } static int etnaviv_gpu_hw_suspend(struct etnaviv_gpu *gpu) { if (gpu->buffer) { - unsigned long timeout; - /* Replace the last WAIT with END */ etnaviv_buffer_end(gpu); @@ -1507,22 +1505,7 @@ static int etnaviv_gpu_hw_suspend(struct etnaviv_gpu *gpu) * happen quickly (as the WAIT is only 200 cycles). If * we fail, just warn and continue. */ - timeout = jiffies + msecs_to_jiffies(100); - do { - u32 idle = gpu_read(gpu, VIVS_HI_IDLE_STATE); - - if ((idle & gpu->idle_mask) == gpu->idle_mask) - break; - - if (time_is_before_jiffies(timeout)) { - dev_warn(gpu->dev, - "timed out waiting for idle: idle=0x%x\n", - idle); - break; - } - - udelay(5); - } while (1); + etnaviv_gpu_wait_idle(gpu, 100); } return etnaviv_gpu_clk_disable(gpu); @@ -1634,7 +1617,7 @@ static int etnaviv_gpu_platform_probe(struct platform_device *pdev) { struct device *dev = &pdev->dev; struct etnaviv_gpu *gpu; - int err = 0; + int err; gpu = devm_kzalloc(dev, sizeof(*gpu), GFP_KERNEL); if (!gpu) @@ -1651,16 +1634,15 @@ static int etnaviv_gpu_platform_probe(struct platform_device *pdev) /* Get Interrupt: */ gpu->irq = platform_get_irq(pdev, 0); if (gpu->irq < 0) { - err = gpu->irq; - dev_err(dev, "failed to get irq: %d\n", err); - goto fail; + dev_err(dev, "failed to get irq: %d\n", gpu->irq); + return gpu->irq; } err = devm_request_irq(&pdev->dev, gpu->irq, irq_handler, 0, dev_name(gpu->dev), gpu); if (err) { dev_err(dev, "failed to request IRQ%u: %d\n", gpu->irq, err); - goto fail; + return err; } /* Get Clocks: */ @@ -1694,13 +1676,10 @@ static int etnaviv_gpu_platform_probe(struct platform_device *pdev) err = component_add(&pdev->dev, &gpu_ops); if (err < 0) { dev_err(&pdev->dev, "failed to register component: %d\n", err); - goto fail; + return err; } return 0; - -fail: - return err; } static int etnaviv_gpu_platform_remove(struct platform_device *pdev) diff --git a/drivers/gpu/drm/etnaviv/etnaviv_gpu.h b/drivers/gpu/drm/etnaviv/etnaviv_gpu.h index a69cdd526bf8..73c278dc3706 100644 --- a/drivers/gpu/drm/etnaviv/etnaviv_gpu.h +++ b/drivers/gpu/drm/etnaviv/etnaviv_gpu.h @@ -160,6 +160,8 @@ struct etnaviv_cmdbuf { dma_addr_t paddr; u32 size; u32 user_size; + /* vram node used if the cmdbuf is mapped through the MMUv2 */ + struct drm_mm_node vram_node; /* fence after which this buffer is to be disposed */ struct fence *fence; /* target exec state */ @@ -214,6 +216,8 @@ struct etnaviv_cmdbuf *etnaviv_gpu_cmdbuf_new(struct etnaviv_gpu *gpu, void etnaviv_gpu_cmdbuf_free(struct etnaviv_cmdbuf *cmdbuf); int etnaviv_gpu_pm_get_sync(struct etnaviv_gpu *gpu); void etnaviv_gpu_pm_put(struct etnaviv_gpu *gpu); +int etnaviv_gpu_wait_idle(struct etnaviv_gpu *gpu, unsigned int timeout_ms); +void etnaviv_gpu_start_fe(struct etnaviv_gpu *gpu, u32 address, u16 prefetch); extern struct platform_driver etnaviv_gpu_driver; diff --git a/drivers/gpu/drm/etnaviv/etnaviv_iommu.c b/drivers/gpu/drm/etnaviv/etnaviv_iommu.c index 16353ee81651..81f1583a7946 100644 --- a/drivers/gpu/drm/etnaviv/etnaviv_iommu.c +++ b/drivers/gpu/drm/etnaviv/etnaviv_iommu.c @@ -196,12 +196,19 @@ static struct etnaviv_iommu_ops etnaviv_iommu_ops = { .dump = etnaviv_iommuv1_dump, }; -void etnaviv_iommu_domain_restore(struct etnaviv_gpu *gpu, - struct iommu_domain *domain) +void etnaviv_iommuv1_restore(struct etnaviv_gpu *gpu) { - struct etnaviv_iommu_domain *etnaviv_domain = to_etnaviv_domain(domain); + struct etnaviv_iommu_domain *etnaviv_domain = + to_etnaviv_domain(gpu->mmu->domain); u32 pgtable; + /* set base addresses */ + gpu_write(gpu, VIVS_MC_MEMORY_BASE_ADDR_RA, gpu->memory_base); + gpu_write(gpu, VIVS_MC_MEMORY_BASE_ADDR_FE, gpu->memory_base); + gpu_write(gpu, VIVS_MC_MEMORY_BASE_ADDR_TX, gpu->memory_base); + gpu_write(gpu, VIVS_MC_MEMORY_BASE_ADDR_PEZ, gpu->memory_base); + gpu_write(gpu, VIVS_MC_MEMORY_BASE_ADDR_PE, gpu->memory_base); + /* set page table address in MC */ pgtable = (u32)etnaviv_domain->pgtable.paddr; @@ -212,7 +219,7 @@ void etnaviv_iommu_domain_restore(struct etnaviv_gpu *gpu, gpu_write(gpu, VIVS_MC_MMU_RA_PAGE_TABLE, pgtable); } -struct iommu_domain *etnaviv_iommu_domain_alloc(struct etnaviv_gpu *gpu) +struct iommu_domain *etnaviv_iommuv1_domain_alloc(struct etnaviv_gpu *gpu) { struct etnaviv_iommu_domain *etnaviv_domain; int ret; diff --git a/drivers/gpu/drm/etnaviv/etnaviv_iommu.h b/drivers/gpu/drm/etnaviv/etnaviv_iommu.h index cf45503f6b6f..8b51e7c16feb 100644 --- a/drivers/gpu/drm/etnaviv/etnaviv_iommu.h +++ b/drivers/gpu/drm/etnaviv/etnaviv_iommu.h @@ -17,12 +17,12 @@ #ifndef __ETNAVIV_IOMMU_H__ #define __ETNAVIV_IOMMU_H__ -#include <linux/iommu.h> struct etnaviv_gpu; -struct iommu_domain *etnaviv_iommu_domain_alloc(struct etnaviv_gpu *gpu); -void etnaviv_iommu_domain_restore(struct etnaviv_gpu *gpu, - struct iommu_domain *domain); -struct iommu_domain *etnaviv_iommu_v2_domain_alloc(struct etnaviv_gpu *gpu); +struct iommu_domain *etnaviv_iommuv1_domain_alloc(struct etnaviv_gpu *gpu); +void etnaviv_iommuv1_restore(struct etnaviv_gpu *gpu); + +struct iommu_domain *etnaviv_iommuv2_domain_alloc(struct etnaviv_gpu *gpu); +void etnaviv_iommuv2_restore(struct etnaviv_gpu *gpu); #endif /* __ETNAVIV_IOMMU_H__ */ diff --git a/drivers/gpu/drm/etnaviv/etnaviv_iommu_v2.c b/drivers/gpu/drm/etnaviv/etnaviv_iommu_v2.c index fbb4aed3dc80..7e9c4d210a84 100644 --- a/drivers/gpu/drm/etnaviv/etnaviv_iommu_v2.c +++ b/drivers/gpu/drm/etnaviv/etnaviv_iommu_v2.c @@ -1,5 +1,5 @@ /* - * Copyright (C) 2014 Christian Gmeiner <christian.gmeiner@gmail.com> + * Copyright (C) 2016 Etnaviv Project * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 as published by @@ -22,12 +22,267 @@ #include <linux/bitops.h> #include "etnaviv_gpu.h" +#include "etnaviv_mmu.h" #include "etnaviv_iommu.h" +#include "state.xml.h" #include "state_hi.xml.h" +#define MMUv2_PTE_PRESENT BIT(0) +#define MMUv2_PTE_EXCEPTION BIT(1) +#define MMUv2_PTE_WRITEABLE BIT(2) -struct iommu_domain *etnaviv_iommu_v2_domain_alloc(struct etnaviv_gpu *gpu) +#define MMUv2_MTLB_MASK 0xffc00000 +#define MMUv2_MTLB_SHIFT 22 +#define MMUv2_STLB_MASK 0x003ff000 +#define MMUv2_STLB_SHIFT 12 + +#define MMUv2_MAX_STLB_ENTRIES 1024 + +struct etnaviv_iommuv2_domain { + struct iommu_domain domain; + struct device *dev; + void *bad_page_cpu; + dma_addr_t bad_page_dma; + /* M(aster) TLB aka first level pagetable */ + u32 *mtlb_cpu; + dma_addr_t mtlb_dma; + /* S(lave) TLB aka second level pagetable */ + u32 *stlb_cpu[1024]; + dma_addr_t stlb_dma[1024]; +}; + +static struct etnaviv_iommuv2_domain *to_etnaviv_domain(struct iommu_domain *domain) +{ + return container_of(domain, struct etnaviv_iommuv2_domain, domain); +} + +static int etnaviv_iommuv2_map(struct iommu_domain *domain, unsigned long iova, + phys_addr_t paddr, size_t size, int prot) +{ + struct etnaviv_iommuv2_domain *etnaviv_domain = + to_etnaviv_domain(domain); + int mtlb_entry, stlb_entry; + u32 entry = (u32)paddr | MMUv2_PTE_PRESENT; + + if (size != SZ_4K) + return -EINVAL; + + if (prot & IOMMU_WRITE) + entry |= MMUv2_PTE_WRITEABLE; + + mtlb_entry = (iova & MMUv2_MTLB_MASK) >> MMUv2_MTLB_SHIFT; + stlb_entry = (iova & MMUv2_STLB_MASK) >> MMUv2_STLB_SHIFT; + + etnaviv_domain->stlb_cpu[mtlb_entry][stlb_entry] = entry; + + return 0; +} + +static size_t etnaviv_iommuv2_unmap(struct iommu_domain *domain, + unsigned long iova, size_t size) +{ + struct etnaviv_iommuv2_domain *etnaviv_domain = + to_etnaviv_domain(domain); + int mtlb_entry, stlb_entry; + + if (size != SZ_4K) + return -EINVAL; + + mtlb_entry = (iova & MMUv2_MTLB_MASK) >> MMUv2_MTLB_SHIFT; + stlb_entry = (iova & MMUv2_STLB_MASK) >> MMUv2_STLB_SHIFT; + + etnaviv_domain->stlb_cpu[mtlb_entry][stlb_entry] = MMUv2_PTE_EXCEPTION; + + return SZ_4K; +} + +static phys_addr_t etnaviv_iommuv2_iova_to_phys(struct iommu_domain *domain, + dma_addr_t iova) +{ + struct etnaviv_iommuv2_domain *etnaviv_domain = + to_etnaviv_domain(domain); + int mtlb_entry, stlb_entry; + + mtlb_entry = (iova & MMUv2_MTLB_MASK) >> MMUv2_MTLB_SHIFT; + stlb_entry = (iova & MMUv2_STLB_MASK) >> MMUv2_STLB_SHIFT; + + return etnaviv_domain->stlb_cpu[mtlb_entry][stlb_entry] & ~(SZ_4K - 1); +} + +static int etnaviv_iommuv2_init(struct etnaviv_iommuv2_domain *etnaviv_domain) +{ + u32 *p; + int ret, i, j; + + /* allocate scratch page */ + etnaviv_domain->bad_page_cpu = dma_alloc_coherent(etnaviv_domain->dev, + SZ_4K, + &etnaviv_domain->bad_page_dma, + GFP_KERNEL); + if (!etnaviv_domain->bad_page_cpu) { + ret = -ENOMEM; + goto fail_mem; + } + p = etnaviv_domain->bad_page_cpu; + for (i = 0; i < SZ_4K / 4; i++) + *p++ = 0xdead55aa; + + etnaviv_domain->mtlb_cpu = dma_alloc_coherent(etnaviv_domain->dev, + SZ_4K, + &etnaviv_domain->mtlb_dma, + GFP_KERNEL); + if (!etnaviv_domain->mtlb_cpu) { + ret = -ENOMEM; + goto fail_mem; + } + + /* pre-populate STLB pages (may want to switch to on-demand later) */ + for (i = 0; i < MMUv2_MAX_STLB_ENTRIES; i++) { + etnaviv_domain->stlb_cpu[i] = + dma_alloc_coherent(etnaviv_domain->dev, + SZ_4K, + &etnaviv_domain->stlb_dma[i], + GFP_KERNEL); + if (!etnaviv_domain->stlb_cpu[i]) { + ret = -ENOMEM; + goto fail_mem; + } + p = etnaviv_domain->stlb_cpu[i]; + for (j = 0; j < SZ_4K / 4; j++) + *p++ = MMUv2_PTE_EXCEPTION; + + etnaviv_domain->mtlb_cpu[i] = etnaviv_domain->stlb_dma[i] | + MMUv2_PTE_PRESENT; + } + + return 0; + +fail_mem: + if (etnaviv_domain->bad_page_cpu) + dma_free_coherent(etnaviv_domain->dev, SZ_4K, + etnaviv_domain->bad_page_cpu, + etnaviv_domain->bad_page_dma); + + if (etnaviv_domain->mtlb_cpu) + dma_free_coherent(etnaviv_domain->dev, SZ_4K, + etnaviv_domain->mtlb_cpu, + etnaviv_domain->mtlb_dma); + + for (i = 0; i < MMUv2_MAX_STLB_ENTRIES; i++) { + if (etnaviv_domain->stlb_cpu[i]) + dma_free_coherent(etnaviv_domain->dev, SZ_4K, + etnaviv_domain->stlb_cpu[i], + etnaviv_domain->stlb_dma[i]); + } + + return ret; +} + +static void etnaviv_iommuv2_domain_free(struct iommu_domain *domain) +{ + struct etnaviv_iommuv2_domain *etnaviv_domain = + to_etnaviv_domain(domain); + int i; + + dma_free_coherent(etnaviv_domain->dev, SZ_4K, + etnaviv_domain->bad_page_cpu, + etnaviv_domain->bad_page_dma); + + dma_free_coherent(etnaviv_domain->dev, SZ_4K, + etnaviv_domain->mtlb_cpu, + etnaviv_domain->mtlb_dma); + + for (i = 0; i < MMUv2_MAX_STLB_ENTRIES; i++) { + if (etnaviv_domain->stlb_cpu[i]) + dma_free_coherent(etnaviv_domain->dev, SZ_4K, + etnaviv_domain->stlb_cpu[i], + etnaviv_domain->stlb_dma[i]); + } + + vfree(etnaviv_domain); +} + +static size_t etnaviv_iommuv2_dump_size(struct iommu_domain *domain) +{ + struct etnaviv_iommuv2_domain *etnaviv_domain = + to_etnaviv_domain(domain); + size_t dump_size = SZ_4K; + int i; + + for (i = 0; i < MMUv2_MAX_STLB_ENTRIES; i++) + if (etnaviv_domain->mtlb_cpu[i] & MMUv2_PTE_PRESENT) + dump_size += SZ_4K; + + return dump_size; +} + +static void etnaviv_iommuv2_dump(struct iommu_domain *domain, void *buf) { - /* TODO */ + struct etnaviv_iommuv2_domain *etnaviv_domain = + to_etnaviv_domain(domain); + int i; + + memcpy(buf, etnaviv_domain->mtlb_cpu, SZ_4K); + buf += SZ_4K; + for (i = 0; i < MMUv2_MAX_STLB_ENTRIES; i++, buf += SZ_4K) + if (etnaviv_domain->mtlb_cpu[i] & MMUv2_PTE_PRESENT) + memcpy(buf, etnaviv_domain->stlb_cpu[i], SZ_4K); +} + +static struct etnaviv_iommu_ops etnaviv_iommu_ops = { + .ops = { + .domain_free = etnaviv_iommuv2_domain_free, + .map = etnaviv_iommuv2_map, + .unmap = etnaviv_iommuv2_unmap, + .iova_to_phys = etnaviv_iommuv2_iova_to_phys, + .pgsize_bitmap = SZ_4K, + }, + .dump_size = etnaviv_iommuv2_dump_size, + .dump = etnaviv_iommuv2_dump, +}; + +void etnaviv_iommuv2_restore(struct etnaviv_gpu *gpu) +{ + struct etnaviv_iommuv2_domain *etnaviv_domain = + to_etnaviv_domain(gpu->mmu->domain); + u16 prefetch; + + /* If the MMU is already enabled the state is still there. */ + if (gpu_read(gpu, VIVS_MMUv2_CONTROL) & VIVS_MMUv2_CONTROL_ENABLE) + return; + + prefetch = etnaviv_buffer_config_mmuv2(gpu, + (u32)etnaviv_domain->mtlb_dma, + (u32)etnaviv_domain->bad_page_dma); + etnaviv_gpu_start_fe(gpu, gpu->buffer->paddr, prefetch); + etnaviv_gpu_wait_idle(gpu, 100); + + gpu_write(gpu, VIVS_MMUv2_CONTROL, VIVS_MMUv2_CONTROL_ENABLE); +} +struct iommu_domain *etnaviv_iommuv2_domain_alloc(struct etnaviv_gpu *gpu) +{ + struct etnaviv_iommuv2_domain *etnaviv_domain; + int ret; + + etnaviv_domain = vzalloc(sizeof(*etnaviv_domain)); + if (!etnaviv_domain) + return NULL; + + etnaviv_domain->dev = gpu->dev; + + etnaviv_domain->domain.type = __IOMMU_DOMAIN_PAGING; + etnaviv_domain->domain.ops = &etnaviv_iommu_ops.ops; + etnaviv_domain->domain.pgsize_bitmap = SZ_4K; + etnaviv_domain->domain.geometry.aperture_start = 0; + etnaviv_domain->domain.geometry.aperture_end = ~0UL & ~(SZ_4K - 1); + + ret = etnaviv_iommuv2_init(etnaviv_domain); + if (ret) + goto out_free; + + return &etnaviv_domain->domain; + +out_free: + vfree(etnaviv_domain); return NULL; } diff --git a/drivers/gpu/drm/etnaviv/etnaviv_iommu_v2.h b/drivers/gpu/drm/etnaviv/etnaviv_iommu_v2.h deleted file mode 100644 index 603ea41c5389..000000000000 --- a/drivers/gpu/drm/etnaviv/etnaviv_iommu_v2.h +++ /dev/null @@ -1,25 +0,0 @@ -/* - * Copyright (C) 2014 Christian Gmeiner <christian.gmeiner@gmail.com> - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2 as published by - * the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. - * - * You should have received a copy of the GNU General Public License along with - * this program. If not, see <http://www.gnu.org/licenses/>. - */ - -#ifndef __ETNAVIV_IOMMU_V2_H__ -#define __ETNAVIV_IOMMU_V2_H__ - -#include <linux/iommu.h> -struct etnaviv_gpu; - -struct iommu_domain *etnaviv_iommu_v2_domain_alloc(struct etnaviv_gpu *gpu); - -#endif /* __ETNAVIV_IOMMU_V2_H__ */ diff --git a/drivers/gpu/drm/etnaviv/etnaviv_mmu.c b/drivers/gpu/drm/etnaviv/etnaviv_mmu.c index 29a723fabc17..d3796ed8d8c5 100644 --- a/drivers/gpu/drm/etnaviv/etnaviv_mmu.c +++ b/drivers/gpu/drm/etnaviv/etnaviv_mmu.c @@ -14,9 +14,11 @@ * this program. If not, see <http://www.gnu.org/licenses/>. */ +#include "common.xml.h" #include "etnaviv_drv.h" #include "etnaviv_gem.h" #include "etnaviv_gpu.h" +#include "etnaviv_iommu.h" #include "etnaviv_mmu.h" static int etnaviv_fault_handler(struct iommu_domain *iommu, struct device *dev, @@ -101,40 +103,21 @@ static void etnaviv_iommu_remove_mapping(struct etnaviv_iommu *mmu, drm_mm_remove_node(&mapping->vram_node); } -int etnaviv_iommu_map_gem(struct etnaviv_iommu *mmu, - struct etnaviv_gem_object *etnaviv_obj, u32 memory_base, - struct etnaviv_vram_mapping *mapping) +static int etnaviv_iommu_find_iova(struct etnaviv_iommu *mmu, + struct drm_mm_node *node, size_t size) { struct etnaviv_vram_mapping *free = NULL; - struct sg_table *sgt = etnaviv_obj->sgt; - struct drm_mm_node *node; int ret; - lockdep_assert_held(&etnaviv_obj->lock); - - mutex_lock(&mmu->lock); - - /* v1 MMU can optimize single entry (contiguous) scatterlists */ - if (sgt->nents == 1 && !(etnaviv_obj->flags & ETNA_BO_FORCE_MMU)) { - u32 iova; - - iova = sg_dma_address(sgt->sgl) - memory_base; - if (iova < 0x80000000 - sg_dma_len(sgt->sgl)) { - mapping->iova = iova; - list_add_tail(&mapping->mmu_node, &mmu->mappings); - mutex_unlock(&mmu->lock); - return 0; - } - } + lockdep_assert_held(&mmu->lock); - node = &mapping->vram_node; while (1) { struct etnaviv_vram_mapping *m, *n; struct list_head list; bool found; ret = drm_mm_insert_node_in_range(&mmu->mm, node, - etnaviv_obj->base.size, 0, mmu->last_iova, ~0UL, + size, 0, mmu->last_iova, ~0UL, DRM_MM_SEARCH_DEFAULT); if (ret != -ENOSPC) @@ -151,7 +134,7 @@ int etnaviv_iommu_map_gem(struct etnaviv_iommu *mmu, } /* Try to retire some entries */ - drm_mm_init_scan(&mmu->mm, etnaviv_obj->base.size, 0, 0); + drm_mm_init_scan(&mmu->mm, size, 0, 0); found = 0; INIT_LIST_HEAD(&list); @@ -212,6 +195,38 @@ int etnaviv_iommu_map_gem(struct etnaviv_iommu *mmu, mmu->need_flush = true; } + return ret; +} + +int etnaviv_iommu_map_gem(struct etnaviv_iommu *mmu, + struct etnaviv_gem_object *etnaviv_obj, u32 memory_base, + struct etnaviv_vram_mapping *mapping) +{ + struct sg_table *sgt = etnaviv_obj->sgt; + struct drm_mm_node *node; + int ret; + + lockdep_assert_held(&etnaviv_obj->lock); + + mutex_lock(&mmu->lock); + + /* v1 MMU can optimize single entry (contiguous) scatterlists */ + if (mmu->version == ETNAVIV_IOMMU_V1 && + sgt->nents == 1 && !(etnaviv_obj->flags & ETNA_BO_FORCE_MMU)) { + u32 iova; + + iova = sg_dma_address(sgt->sgl) - memory_base; + if (iova < 0x80000000 - sg_dma_len(sgt->sgl)) { + mapping->iova = iova; + list_add_tail(&mapping->mmu_node, &mmu->mappings); + mutex_unlock(&mmu->lock); + return 0; + } + } + + node = &mapping->vram_node; + + ret = etnaviv_iommu_find_iova(mmu, node, etnaviv_obj->base.size); if (ret < 0) { mutex_unlock(&mmu->lock); return ret; @@ -256,30 +271,102 @@ void etnaviv_iommu_destroy(struct etnaviv_iommu *mmu) kfree(mmu); } -struct etnaviv_iommu *etnaviv_iommu_new(struct etnaviv_gpu *gpu, - struct iommu_domain *domain, enum etnaviv_iommu_version version) +struct etnaviv_iommu *etnaviv_iommu_new(struct etnaviv_gpu *gpu) { + enum etnaviv_iommu_version version; struct etnaviv_iommu *mmu; mmu = kzalloc(sizeof(*mmu), GFP_KERNEL); if (!mmu) return ERR_PTR(-ENOMEM); - mmu->domain = domain; + if (!(gpu->identity.minor_features1 & chipMinorFeatures1_MMU_VERSION)) { + mmu->domain = etnaviv_iommuv1_domain_alloc(gpu); + version = ETNAVIV_IOMMU_V1; + } else { + mmu->domain = etnaviv_iommuv2_domain_alloc(gpu); + version = ETNAVIV_IOMMU_V2; + } + + if (!mmu->domain) { + dev_err(gpu->dev, "Failed to allocate GPU IOMMU domain\n"); + kfree(mmu); + return ERR_PTR(-ENOMEM); + } + mmu->gpu = gpu; mmu->version = version; mutex_init(&mmu->lock); INIT_LIST_HEAD(&mmu->mappings); - drm_mm_init(&mmu->mm, domain->geometry.aperture_start, - domain->geometry.aperture_end - - domain->geometry.aperture_start + 1); + drm_mm_init(&mmu->mm, mmu->domain->geometry.aperture_start, + mmu->domain->geometry.aperture_end - + mmu->domain->geometry.aperture_start + 1); - iommu_set_fault_handler(domain, etnaviv_fault_handler, gpu->dev); + iommu_set_fault_handler(mmu->domain, etnaviv_fault_handler, gpu->dev); return mmu; } +void etnaviv_iommu_restore(struct etnaviv_gpu *gpu) +{ + if (gpu->mmu->version == ETNAVIV_IOMMU_V1) + etnaviv_iommuv1_restore(gpu); + else + etnaviv_iommuv2_restore(gpu); +} + +u32 etnaviv_iommu_get_cmdbuf_va(struct etnaviv_gpu *gpu, + struct etnaviv_cmdbuf *buf) +{ + struct etnaviv_iommu *mmu = gpu->mmu; + + if (mmu->version == ETNAVIV_IOMMU_V1) { + return buf->paddr - gpu->memory_base; + } else { + int ret; + + if (buf->vram_node.allocated) + return (u32)buf->vram_node.start; + + mutex_lock(&mmu->lock); + ret = etnaviv_iommu_find_iova(mmu, &buf->vram_node, buf->size); + if (ret < 0) { + mutex_unlock(&mmu->lock); + return 0; + } + ret = iommu_map(mmu->domain, buf->vram_node.start, buf->paddr, + buf->size, IOMMU_READ); + if (ret < 0) { + drm_mm_remove_node(&buf->vram_node); + mutex_unlock(&mmu->lock); + return 0; + } + /* + * At least on GC3000 the FE MMU doesn't properly flush old TLB + * entries. Make sure to space the command buffers out in a way + * that the FE MMU prefetch won't load invalid entries. + */ + mmu->last_iova = buf->vram_node.start + buf->size + SZ_64K; + gpu->mmu->need_flush = true; + mutex_unlock(&mmu->lock); + + return (u32)buf->vram_node.start; + } +} + +void etnaviv_iommu_put_cmdbuf_va(struct etnaviv_gpu *gpu, + struct etnaviv_cmdbuf *buf) +{ + struct etnaviv_iommu *mmu = gpu->mmu; + + if (mmu->version == ETNAVIV_IOMMU_V2 && buf->vram_node.allocated) { + mutex_lock(&mmu->lock); + iommu_unmap(mmu->domain, buf->vram_node.start, buf->size); + drm_mm_remove_node(&buf->vram_node); + mutex_unlock(&mmu->lock); + } +} size_t etnaviv_iommu_dump_size(struct etnaviv_iommu *iommu) { struct etnaviv_iommu_ops *ops; diff --git a/drivers/gpu/drm/etnaviv/etnaviv_mmu.h b/drivers/gpu/drm/etnaviv/etnaviv_mmu.h index fff215a47630..e787e49c9693 100644 --- a/drivers/gpu/drm/etnaviv/etnaviv_mmu.h +++ b/drivers/gpu/drm/etnaviv/etnaviv_mmu.h @@ -62,10 +62,15 @@ void etnaviv_iommu_unmap_gem(struct etnaviv_iommu *mmu, struct etnaviv_vram_mapping *mapping); void etnaviv_iommu_destroy(struct etnaviv_iommu *iommu); +u32 etnaviv_iommu_get_cmdbuf_va(struct etnaviv_gpu *gpu, + struct etnaviv_cmdbuf *buf); +void etnaviv_iommu_put_cmdbuf_va(struct etnaviv_gpu *gpu, + struct etnaviv_cmdbuf *buf); + size_t etnaviv_iommu_dump_size(struct etnaviv_iommu *iommu); void etnaviv_iommu_dump(struct etnaviv_iommu *iommu, void *buf); -struct etnaviv_iommu *etnaviv_iommu_new(struct etnaviv_gpu *gpu, - struct iommu_domain *domain, enum etnaviv_iommu_version version); +struct etnaviv_iommu *etnaviv_iommu_new(struct etnaviv_gpu *gpu); +void etnaviv_iommu_restore(struct etnaviv_gpu *gpu); #endif /* __ETNAVIV_MMU_H__ */ diff --git a/drivers/gpu/drm/etnaviv/state_hi.xml.h b/drivers/gpu/drm/etnaviv/state_hi.xml.h index 807a3d9e0dd5..43c73e2ed34f 100644 --- a/drivers/gpu/drm/etnaviv/state_hi.xml.h +++ b/drivers/gpu/drm/etnaviv/state_hi.xml.h @@ -8,10 +8,10 @@ http://0x04.net/cgit/index.cgi/rules-ng-ng git clone git://0x04.net/rules-ng-ng The rules-ng-ng source files this header was generated from are: -- state_hi.xml ( 24309 bytes, from 2015-12-12 09:02:53) -- common.xml ( 18437 bytes, from 2015-12-12 09:02:53) +- state_hi.xml ( 25620 bytes, from 2016-08-19 22:07:37) +- common.xml ( 20583 bytes, from 2016-06-07 05:22:38) -Copyright (C) 2015 +Copyright (C) 2016 */ @@ -78,9 +78,10 @@ Copyright (C) 2015 #define VIVS_HI_AXI_STATUS_DET_RD_ERR 0x00000200 #define VIVS_HI_INTR_ACKNOWLEDGE 0x00000010 -#define VIVS_HI_INTR_ACKNOWLEDGE_INTR_VEC__MASK 0x7fffffff +#define VIVS_HI_INTR_ACKNOWLEDGE_INTR_VEC__MASK 0x3fffffff #define VIVS_HI_INTR_ACKNOWLEDGE_INTR_VEC__SHIFT 0 #define VIVS_HI_INTR_ACKNOWLEDGE_INTR_VEC(x) (((x) << VIVS_HI_INTR_ACKNOWLEDGE_INTR_VEC__SHIFT) & VIVS_HI_INTR_ACKNOWLEDGE_INTR_VEC__MASK) +#define VIVS_HI_INTR_ACKNOWLEDGE_MMU_EXCEPTION 0x40000000 #define VIVS_HI_INTR_ACKNOWLEDGE_AXI_BUS_ERROR 0x80000000 #define VIVS_HI_INTR_ENBL 0x00000014 |