From 82e5169e8adfff331169613808b45a6cfb030e81 Mon Sep 17 00:00:00 2001 From: Yuri Nudelman Date: Thu, 30 Sep 2021 15:52:25 +0300 Subject: [PATCH] habanalabs: add enum mmu_op_flags The enum vm_type was abused, used once as a value (indication memory type for map) and once as a flag (for cache invalidation). This makes it hard to add new and still keep it meaningful, hence it is better to split into one enum for values and one for flags. Signed-off-by: Yuri Nudelman Reviewed-by: Oded Gabbay Signed-off-by: Oded Gabbay --- drivers/misc/habanalabs/common/command_buffer.c | 6 +++--- drivers/misc/habanalabs/common/habanalabs.h | 11 +++++++++++ drivers/misc/habanalabs/common/memory.c | 4 ++-- drivers/misc/habanalabs/gaudi/gaudi.c | 4 ++-- drivers/misc/habanalabs/goya/goya.c | 2 +- 5 files changed, 19 insertions(+), 8 deletions(-) diff --git a/drivers/misc/habanalabs/common/command_buffer.c b/drivers/misc/habanalabs/common/command_buffer.c index 41a12bcd26e50..fab499d252d4a 100644 --- a/drivers/misc/habanalabs/common/command_buffer.c +++ b/drivers/misc/habanalabs/common/command_buffer.c @@ -80,7 +80,7 @@ static int cb_map_mem(struct hl_ctx *ctx, struct hl_cb *cb) offset += va_block->size; } - hdev->asic_funcs->mmu_invalidate_cache(hdev, false, VM_TYPE_USERPTR); + hdev->asic_funcs->mmu_invalidate_cache(hdev, false, MMU_OP_USERPTR); mutex_unlock(&ctx->mmu_lock); @@ -97,7 +97,7 @@ err_va_umap: offset -= va_block->size; } - hdev->asic_funcs->mmu_invalidate_cache(hdev, true, VM_TYPE_USERPTR); + hdev->asic_funcs->mmu_invalidate_cache(hdev, true, MMU_OP_USERPTR); mutex_unlock(&ctx->mmu_lock); @@ -126,7 +126,7 @@ static void cb_unmap_mem(struct hl_ctx *ctx, struct hl_cb *cb) "Failed to unmap CB's va 0x%llx\n", va_block->start); - hdev->asic_funcs->mmu_invalidate_cache(hdev, true, VM_TYPE_USERPTR); + hdev->asic_funcs->mmu_invalidate_cache(hdev, true, MMU_OP_USERPTR); mutex_unlock(&ctx->mmu_lock); diff --git a/drivers/misc/habanalabs/common/habanalabs.h b/drivers/misc/habanalabs/common/habanalabs.h index 6dd7d9ee7a44d..202c7f7948f5a 100644 --- a/drivers/misc/habanalabs/common/habanalabs.h +++ b/drivers/misc/habanalabs/common/habanalabs.h @@ -352,6 +352,17 @@ enum vm_type { VM_TYPE_PHYS_PACK = 0x2 }; +/** + * enum mmu_op_flags - mmu operation relevant information. + * @MMU_OP_USERPTR: operation on user memory (host resident). + * @MMU_OP_PHYS_PACK: operation on DRAM (device resident). + */ +enum mmu_op_flags { + MMU_OP_USERPTR = 0x1, + MMU_OP_PHYS_PACK = 0x2 +}; + + /** * enum hl_device_hw_state - H/W device state. use this to understand whether * to do reset before hw_init or not diff --git a/drivers/misc/habanalabs/common/memory.c b/drivers/misc/habanalabs/common/memory.c index 1185f9aec9897..40f2197388fe1 100644 --- a/drivers/misc/habanalabs/common/memory.c +++ b/drivers/misc/habanalabs/common/memory.c @@ -2639,8 +2639,8 @@ void hl_vm_ctx_fini(struct hl_ctx *ctx) mutex_lock(&ctx->mmu_lock); /* invalidate the cache once after the unmapping loop */ - hdev->asic_funcs->mmu_invalidate_cache(hdev, true, VM_TYPE_USERPTR); - hdev->asic_funcs->mmu_invalidate_cache(hdev, true, VM_TYPE_PHYS_PACK); + hdev->asic_funcs->mmu_invalidate_cache(hdev, true, MMU_OP_USERPTR); + hdev->asic_funcs->mmu_invalidate_cache(hdev, true, MMU_OP_PHYS_PACK); mutex_unlock(&ctx->mmu_lock); diff --git a/drivers/misc/habanalabs/gaudi/gaudi.c b/drivers/misc/habanalabs/gaudi/gaudi.c index 52fffd76f5cf8..2e39514ee102c 100644 --- a/drivers/misc/habanalabs/gaudi/gaudi.c +++ b/drivers/misc/habanalabs/gaudi/gaudi.c @@ -8688,7 +8688,7 @@ static int gaudi_internal_cb_pool_init(struct hl_device *hdev, hdev->internal_cb_pool_dma_addr, HOST_SPACE_INTERNAL_CB_SZ); - hdev->asic_funcs->mmu_invalidate_cache(hdev, false, VM_TYPE_USERPTR); + hdev->asic_funcs->mmu_invalidate_cache(hdev, false, MMU_OP_USERPTR); mutex_unlock(&ctx->mmu_lock); if (rc) @@ -8723,7 +8723,7 @@ static void gaudi_internal_cb_pool_fini(struct hl_device *hdev, HOST_SPACE_INTERNAL_CB_SZ); hl_unreserve_va_block(hdev, ctx, hdev->internal_cb_va_base, HOST_SPACE_INTERNAL_CB_SZ); - hdev->asic_funcs->mmu_invalidate_cache(hdev, true, VM_TYPE_USERPTR); + hdev->asic_funcs->mmu_invalidate_cache(hdev, true, MMU_OP_USERPTR); mutex_unlock(&ctx->mmu_lock); gen_pool_destroy(hdev->internal_cb_pool); diff --git a/drivers/misc/habanalabs/goya/goya.c b/drivers/misc/habanalabs/goya/goya.c index 59bb12fcc935d..6ee6d5b915a15 100644 --- a/drivers/misc/habanalabs/goya/goya.c +++ b/drivers/misc/habanalabs/goya/goya.c @@ -2621,7 +2621,7 @@ int goya_mmu_init(struct hl_device *hdev) (~STLB_STLB_FEATURE_EN_FOLLOWER_EN_MASK)); hdev->asic_funcs->mmu_invalidate_cache(hdev, true, - VM_TYPE_USERPTR | VM_TYPE_PHYS_PACK); + MMU_OP_USERPTR | MMU_OP_PHYS_PACK); WREG32(mmMMU_MMU_ENABLE, 1); WREG32(mmMMU_SPI_MASK, 0xF); -- 2.30.2