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Subject[PATCH] radeon: use vmalloc instead of kmalloc
Date
We don't need to allocated contiguous pages in cs codepath
so use vmalloc instead.

Signed-off-by: Jerome Glisse <jglisse@redhat.com>
---
drivers/gpu/drm/radeon/radeon_cs.c | 20 ++++++++++----------
1 files changed, 10 insertions(+), 10 deletions(-)

diff --git a/drivers/gpu/drm/radeon/radeon_cs.c b/drivers/gpu/drm/radeon/radeon_cs.c
index b843f9b..54a9740 100644
--- a/drivers/gpu/drm/radeon/radeon_cs.c
+++ b/drivers/gpu/drm/radeon/radeon_cs.c
@@ -45,11 +45,11 @@ int radeon_cs_parser_relocs(struct radeon_cs_parser *p)
chunk = &p->chunks[p->chunk_relocs_idx];
/* FIXME: we assume that each relocs use 4 dwords */
p->nrelocs = chunk->length_dw / 4;
- p->relocs_ptr = kcalloc(p->nrelocs, sizeof(void *), GFP_KERNEL);
+ p->relocs_ptr = vmalloc(p->nrelocs * sizeof(void *));
if (p->relocs_ptr == NULL) {
return -ENOMEM;
}
- p->relocs = kcalloc(p->nrelocs, sizeof(struct radeon_cs_reloc), GFP_KERNEL);
+ p->relocs = vmalloc(p->nrelocs * sizeof(struct radeon_cs_reloc));
if (p->relocs == NULL) {
return -ENOMEM;
}
@@ -103,7 +103,7 @@ int radeon_cs_parser_init(struct radeon_cs_parser *p, void *data)
p->idx = 0;
p->chunk_ib_idx = -1;
p->chunk_relocs_idx = -1;
- p->chunks_array = kcalloc(cs->num_chunks, sizeof(uint64_t), GFP_KERNEL);
+ p->chunks_array = vmalloc(cs->num_chunks * sizeof(uint64_t));
if (p->chunks_array == NULL) {
return -ENOMEM;
}
@@ -113,7 +113,7 @@ int radeon_cs_parser_init(struct radeon_cs_parser *p, void *data)
return -EFAULT;
}
p->nchunks = cs->num_chunks;
- p->chunks = kcalloc(p->nchunks, sizeof(struct radeon_cs_chunk), GFP_KERNEL);
+ p->chunks = vmalloc(p->nchunks * sizeof(struct radeon_cs_chunk));
if (p->chunks == NULL) {
return -ENOMEM;
}
@@ -139,7 +139,7 @@ int radeon_cs_parser_init(struct radeon_cs_parser *p, void *data)

p->chunks[i].kdata = NULL;
size = p->chunks[i].length_dw * sizeof(uint32_t);
- p->chunks[i].kdata = kzalloc(size, GFP_KERNEL);
+ p->chunks[i].kdata = vmalloc(size);
if (p->chunks[i].kdata == NULL) {
return -ENOMEM;
}
@@ -179,13 +179,13 @@ static void radeon_cs_parser_fini(struct radeon_cs_parser *parser, int error)
mutex_unlock(&parser->rdev->ddev->struct_mutex);
}
}
- kfree(parser->relocs);
- kfree(parser->relocs_ptr);
+ vfree(parser->relocs);
+ vfree(parser->relocs_ptr);
for (i = 0; i < parser->nchunks; i++) {
- kfree(parser->chunks[i].kdata);
+ vfree(parser->chunks[i].kdata);
}
- kfree(parser->chunks);
- kfree(parser->chunks_array);
+ vfree(parser->chunks);
+ vfree(parser->chunks_array);
radeon_ib_free(parser->rdev, &parser->ib);
}

--
1.6.2.2


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