Mesa (master): turnip: add function to allocate aligned memory in a substream cs
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Fri Dec 6 04:02:12 UTC 2019
Module: Mesa
Branch: master
Commit: 3ab4f994619920c2a02a9cf861538a82532ab2d3
URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=3ab4f994619920c2a02a9cf861538a82532ab2d3
Author: Jonathan Marek <jonathan at marek.ca>
Date: Fri Nov 15 15:15:53 2019 -0500
turnip: add function to allocate aligned memory in a substream cs
To use with texture states that need alignment (texconst, sampler, border)
Signed-off-by: Jonathan Marek <jonathan at marek.ca>
Reviewed-by: Kristian H. Kristensen <hoegsberg at google.com>
---
src/freedreno/vulkan/tu_cs.c | 35 +++++++++++++++++++++++++++++++++++
src/freedreno/vulkan/tu_cs.h | 7 +++++++
src/freedreno/vulkan/tu_private.h | 5 +++++
3 files changed, 47 insertions(+)
diff --git a/src/freedreno/vulkan/tu_cs.c b/src/freedreno/vulkan/tu_cs.c
index 48242f813ad..22c0527db88 100644
--- a/src/freedreno/vulkan/tu_cs.c
+++ b/src/freedreno/vulkan/tu_cs.c
@@ -263,6 +263,41 @@ tu_cs_begin_sub_stream(struct tu_device *dev,
}
/**
+ * Allocate count*size dwords, aligned to size dwords.
+ * \a cs must be in TU_CS_MODE_SUB_STREAM mode.
+ *
+ */
+VkResult
+tu_cs_alloc(struct tu_device *dev,
+ struct tu_cs *cs,
+ uint32_t count,
+ uint32_t size,
+ struct ts_cs_memory *memory)
+{
+ assert(cs->mode == TU_CS_MODE_SUB_STREAM);
+ assert(size && size <= 1024);
+
+ if (!count)
+ return VK_SUCCESS;
+
+ /* TODO: smarter way to deal with alignment? */
+
+ VkResult result = tu_cs_reserve_space(dev, cs, count * size + (size-1));
+ if (result != VK_SUCCESS)
+ return result;
+
+ struct tu_bo *bo = cs->bos[cs->bo_count - 1];
+ size_t offset = align(tu_cs_get_offset(cs), size);
+
+ memory->map = bo->map + offset * sizeof(uint32_t);
+ memory->iova = bo->iova + offset * sizeof(uint32_t);
+
+ cs->start = cs->cur = (uint32_t*) bo->map + offset + count * size;
+
+ return VK_SUCCESS;
+}
+
+/**
* End command packet emission to a sub-stream. \a sub_cs becomes invalid
* after this call.
*
diff --git a/src/freedreno/vulkan/tu_cs.h b/src/freedreno/vulkan/tu_cs.h
index f3e0ade2a36..19fe984b431 100644
--- a/src/freedreno/vulkan/tu_cs.h
+++ b/src/freedreno/vulkan/tu_cs.h
@@ -48,6 +48,13 @@ tu_cs_begin_sub_stream(struct tu_device *dev,
uint32_t size,
struct tu_cs *sub_cs);
+VkResult
+tu_cs_alloc(struct tu_device *dev,
+ struct tu_cs *cs,
+ uint32_t count,
+ uint32_t size,
+ struct ts_cs_memory *memory);
+
struct tu_cs_entry
tu_cs_end_sub_stream(struct tu_cs *cs, struct tu_cs *sub_cs);
diff --git a/src/freedreno/vulkan/tu_private.h b/src/freedreno/vulkan/tu_private.h
index 2532feed14e..4f2b9fefad5 100644
--- a/src/freedreno/vulkan/tu_private.h
+++ b/src/freedreno/vulkan/tu_private.h
@@ -508,6 +508,11 @@ struct tu_cs_entry
uint32_t offset;
};
+struct ts_cs_memory {
+ uint32_t *map;
+ uint64_t iova;
+};
+
enum tu_cs_mode
{
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