[PATCH 3/6] drm/etnaviv: wire up iova handling in new cmdbuf abstraction

[Lucas Stach]

Don't call the IOMMU directly, but go through the new cmdbuf abstraction.

Signed-off-by: Lucas Stach <l.stach at pengutronix.de>
---
 drivers/gpu/drm/etnaviv/etnaviv_buffer.c | 13 +++++++------
 drivers/gpu/drm/etnaviv/etnaviv_cmdbuf.c |  5 +++++
 drivers/gpu/drm/etnaviv/etnaviv_cmdbuf.h |  2 ++
 drivers/gpu/drm/etnaviv/etnaviv_dump.c   |  5 ++---
 drivers/gpu/drm/etnaviv/etnaviv_gpu.c    |  4 ++--
 5 files changed, 18 insertions(+), 11 deletions(-)

diff --git a/drivers/gpu/drm/etnaviv/etnaviv_buffer.c b/drivers/gpu/drm/etnaviv/etnaviv_buffer.c
index 9813b9b33553..ed9588f36bc9 100644
--- a/drivers/gpu/drm/etnaviv/etnaviv_buffer.c
+++ b/drivers/gpu/drm/etnaviv/etnaviv_buffer.c
@@ -126,7 +126,7 @@ 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, etnaviv_iommu_get_cmdbuf_va(gpu, buf) + off, size - len * 4 - off);
+			ptr, etnaviv_cmdbuf_get_va(buf) + off, size - len * 4 - off);
 
 	print_hex_dump(KERN_INFO, "cmd ", DUMP_PREFIX_OFFSET, 16, 4,
 			ptr, len * 4, 0);
@@ -159,7 +159,7 @@ static u32 etnaviv_buffer_reserve(struct etnaviv_gpu *gpu,
 	if (buffer->user_size + cmd_dwords * sizeof(u64) > buffer->size)
 		buffer->user_size = 0;
 
-	return etnaviv_iommu_get_cmdbuf_va(gpu, buffer) + buffer->user_size;
+	return etnaviv_cmdbuf_get_va(buffer) + buffer->user_size;
 }
 
 u16 etnaviv_buffer_init(struct etnaviv_gpu *gpu)
@@ -170,7 +170,7 @@ u16 etnaviv_buffer_init(struct etnaviv_gpu *gpu)
 	buffer->user_size = 0;
 
 	CMD_WAIT(buffer);
-	CMD_LINK(buffer, 2, etnaviv_iommu_get_cmdbuf_va(gpu, buffer) +
+	CMD_LINK(buffer, 2, etnaviv_cmdbuf_get_va(buffer) +
 		 buffer->user_size - 4);
 
 	return buffer->user_size / 8;
@@ -262,7 +262,7 @@ 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 = etnaviv_iommu_get_cmdbuf_va(gpu, cmdbuf);
+	link_target = etnaviv_cmdbuf_get_va(cmdbuf);
 	link_dwords = cmdbuf->size / 8;
 
 	/*
@@ -356,12 +356,13 @@ void etnaviv_buffer_queue(struct etnaviv_gpu *gpu, unsigned int event,
 	CMD_LOAD_STATE(buffer, VIVS_GL_EVENT, VIVS_GL_EVENT_EVENT_ID(event) |
 		       VIVS_GL_EVENT_FROM_PE);
 	CMD_WAIT(buffer);
-	CMD_LINK(buffer, 2, etnaviv_iommu_get_cmdbuf_va(gpu, buffer) +
+	CMD_LINK(buffer, 2, etnaviv_cmdbuf_get_va(buffer) +
 			    buffer->user_size - 4);
 
 	if (drm_debug & DRM_UT_DRIVER)
 		pr_info("stream link to 0x%08x @ 0x%08x %p\n",
-			return_target, etnaviv_iommu_get_cmdbuf_va(gpu, cmdbuf), cmdbuf->vaddr);
+			return_target, etnaviv_cmdbuf_get_va(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_cmdbuf.c b/drivers/gpu/drm/etnaviv/etnaviv_cmdbuf.c
index 08f01ce63ff6..155b1fddca8e 100644
--- a/drivers/gpu/drm/etnaviv/etnaviv_cmdbuf.c
+++ b/drivers/gpu/drm/etnaviv/etnaviv_cmdbuf.c
@@ -52,3 +52,8 @@ void etnaviv_cmdbuf_free(struct etnaviv_cmdbuf *cmdbuf)
 		    cmdbuf->paddr);
 	kfree(cmdbuf);
 }
+
+u32 etnaviv_cmdbuf_get_va(struct etnaviv_cmdbuf *buf)
+{
+	return etnaviv_iommu_get_cmdbuf_va(buf->gpu, buf);
+}
diff --git a/drivers/gpu/drm/etnaviv/etnaviv_cmdbuf.h b/drivers/gpu/drm/etnaviv/etnaviv_cmdbuf.h
index 883f03960f95..6d64685cd3e7 100644
--- a/drivers/gpu/drm/etnaviv/etnaviv_cmdbuf.h
+++ b/drivers/gpu/drm/etnaviv/etnaviv_cmdbuf.h
@@ -43,4 +43,6 @@ struct etnaviv_cmdbuf {
 	struct etnaviv_vram_mapping *bo_map[0];
 };
 
+u32 etnaviv_cmdbuf_get_va(struct etnaviv_cmdbuf *buf);
+
 #endif /* __ETNAVIV_CMDBUF_H__ */
diff --git a/drivers/gpu/drm/etnaviv/etnaviv_dump.c b/drivers/gpu/drm/etnaviv/etnaviv_dump.c
index 6a2ff6b77f2a..d019b5e311cc 100644
--- a/drivers/gpu/drm/etnaviv/etnaviv_dump.c
+++ b/drivers/gpu/drm/etnaviv/etnaviv_dump.c
@@ -178,12 +178,11 @@ void etnaviv_core_dump(struct etnaviv_gpu *gpu)
 	etnaviv_core_dump_mmu(&iter, gpu, mmu_size);
 	etnaviv_core_dump_mem(&iter, ETDUMP_BUF_RING, gpu->buffer->vaddr,
 			      gpu->buffer->size,
-			      etnaviv_iommu_get_cmdbuf_va(gpu, gpu->buffer));
+			      etnaviv_cmdbuf_get_va(gpu->buffer));
 
 	list_for_each_entry(cmd, &gpu->active_cmd_list, node)
 		etnaviv_core_dump_mem(&iter, ETDUMP_BUF_CMD, cmd->vaddr,
-				      cmd->size,
-				      etnaviv_iommu_get_cmdbuf_va(gpu, cmd));
+				      cmd->size, etnaviv_cmdbuf_get_va(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 ee8aacc28944..3a689c3fbe5b 100644
--- a/drivers/gpu/drm/etnaviv/etnaviv_gpu.c
+++ b/drivers/gpu/drm/etnaviv/etnaviv_gpu.c
@@ -629,7 +629,7 @@ static void etnaviv_gpu_hw_init(struct etnaviv_gpu *gpu)
 	prefetch = etnaviv_buffer_init(gpu);
 
 	gpu_write(gpu, VIVS_HI_INTR_ENBL, ~0U);
-	etnaviv_gpu_start_fe(gpu, etnaviv_iommu_get_cmdbuf_va(gpu, gpu->buffer),
+	etnaviv_gpu_start_fe(gpu, etnaviv_cmdbuf_get_va(gpu->buffer),
 			     prefetch);
 }
 
@@ -703,7 +703,7 @@ int etnaviv_gpu_init(struct etnaviv_gpu *gpu)
 	}
 
 	if (gpu->mmu->version == ETNAVIV_IOMMU_V1 &&
-	    gpu->buffer->paddr - gpu->memory_base > 0x80000000) {
+	    etnaviv_cmdbuf_get_va(gpu->buffer) > 0x80000000) {
 		ret = -EINVAL;
 		dev_err(gpu->dev,
 			"command buffer outside valid memory window\n");
-- 
2.11.0