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Subject[PATCH v2 04/41] media: atomisp: go one step further to drop ia_css_memory_access.c
Date
Move the attrs handling into hmm, simplifying even further
what the ia_css_memory_access.c file does.

Yet, the returned type for ia_css_memory_access.c is an
integer, instead of a pointer.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
---
.../staging/media/atomisp/include/hmm/hmm.h | 3 ++-
.../media/atomisp/include/linux/atomisp.h | 2 ++
.../memory_access/memory_access.h | 3 ---
drivers/staging/media/atomisp/pci/hmm/hmm.c | 11 ++++++++--
.../media/atomisp/pci/ia_css_memory_access.c | 21 +------------------
.../atomisp/pci/runtime/frame/src/frame.c | 4 ++--
.../staging/media/atomisp/pci/sh_css_params.c | 8 +++----
7 files changed, 20 insertions(+), 32 deletions(-)

diff --git a/drivers/staging/media/atomisp/include/hmm/hmm.h b/drivers/staging/media/atomisp/include/hmm/hmm.h
index e2149b16c9fd..a661c039a2cc 100644
--- a/drivers/staging/media/atomisp/include/hmm/hmm.h
+++ b/drivers/staging/media/atomisp/include/hmm/hmm.h
@@ -35,7 +35,8 @@ int hmm_init(void);
void hmm_cleanup(void);

ia_css_ptr hmm_alloc(size_t bytes, enum hmm_bo_type type,
- int from_highmem, const void __user *userptr, bool cached);
+ int from_highmem, const void __user *userptr,
+ const uint16_t attrs);
void hmm_free(ia_css_ptr ptr);
int hmm_load(ia_css_ptr virt, void *data, unsigned int bytes);
int hmm_store(ia_css_ptr virt, const void *data, unsigned int bytes);
diff --git a/drivers/staging/media/atomisp/include/linux/atomisp.h b/drivers/staging/media/atomisp/include/linux/atomisp.h
index e9670749bae0..fc2e76694613 100644
--- a/drivers/staging/media/atomisp/include/linux/atomisp.h
+++ b/drivers/staging/media/atomisp/include/linux/atomisp.h
@@ -917,6 +917,8 @@ struct atomisp_acc_map {

#define ATOMISP_MAP_FLAG_NOFLUSH 0x0001 /* Do not flush cache */
#define ATOMISP_MAP_FLAG_CACHED 0x0002 /* Enable cache */
+#define ATOMISP_MAP_FLAG_CONTIGUOUS 0x0004
+#define ATOMISP_MAP_FLAG_CLEARED 0x0008

struct atomisp_acc_state {
__u32 flags; /* Flags, see list below */
diff --git a/drivers/staging/media/atomisp/pci/hive_isp_css_include/memory_access/memory_access.h b/drivers/staging/media/atomisp/pci/hive_isp_css_include/memory_access/memory_access.h
index c8a41e5d8dab..19b9083995a4 100644
--- a/drivers/staging/media/atomisp/pci/hive_isp_css_include/memory_access/memory_access.h
+++ b/drivers/staging/media/atomisp/pci/hive_isp_css_include/memory_access/memory_access.h
@@ -76,9 +76,6 @@
* within the allocation referencable from the
* returned pointer/address.
*/
-#define MMGR_ATTRIBUTE_CACHED 0x0001
-#define MMGR_ATTRIBUTE_CONTIGUOUS 0x0002
-#define MMGR_ATTRIBUTE_CLEARED 0x0008

#define mmgr_NULL ((hrt_vaddress)0)
#define mmgr_EXCEPTION ((hrt_vaddress)-1)
diff --git a/drivers/staging/media/atomisp/pci/hmm/hmm.c b/drivers/staging/media/atomisp/pci/hmm/hmm.c
index 975749d67131..68dab2393767 100644
--- a/drivers/staging/media/atomisp/pci/hmm/hmm.c
+++ b/drivers/staging/media/atomisp/pci/hmm/hmm.c
@@ -193,7 +193,7 @@ int hmm_init(void)
* at the beginning, to avoid hmm_alloc return 0 in the
* further allocation.
*/
- dummy_ptr = hmm_alloc(1, HMM_BO_PRIVATE, 0, NULL, false);
+ dummy_ptr = hmm_alloc(1, HMM_BO_PRIVATE, 0, NULL, 0);

if (!ret) {
ret = sysfs_create_group(&atomisp_dev->kobj,
@@ -219,12 +219,16 @@ void hmm_cleanup(void)
}

ia_css_ptr hmm_alloc(size_t bytes, enum hmm_bo_type type,
- int from_highmem, const void __user *userptr, bool cached)
+ int from_highmem, const void __user *userptr,
+ const uint16_t attrs)
{
unsigned int pgnr;
struct hmm_buffer_object *bo;
+ bool cached = attrs & ATOMISP_MAP_FLAG_CACHED;
int ret;

+ WARN_ON(attrs & ATOMISP_MAP_FLAG_CONTIGUOUS);
+
/*
* Check if we are initialized. In the ideal world we wouldn't need
* this but we can tackle it once the driver is a lot cleaner
@@ -258,6 +262,9 @@ ia_css_ptr hmm_alloc(size_t bytes, enum hmm_bo_type type,

hmm_mem_stat.tol_cnt += pgnr;

+ if (attrs & ATOMISP_MAP_FLAG_CLEARED)
+ hmm_set(bo->start, 0, bytes);
+
return bo->start;

bind_err:
diff --git a/drivers/staging/media/atomisp/pci/ia_css_memory_access.c b/drivers/staging/media/atomisp/pci/ia_css_memory_access.c
index d11843a717e0..e19b98fe7201 100644
--- a/drivers/staging/media/atomisp/pci/ia_css_memory_access.c
+++ b/drivers/staging/media/atomisp/pci/ia_css_memory_access.c
@@ -12,30 +12,11 @@
* more details.
*/

-#include <type_support.h>
-#include <system_types.h>
-#include <assert_support.h>
#include <memory_access.h>
-#include <ia_css_env.h>
-
-#include "atomisp_internal.h"

hrt_vaddress mmgr_alloc_attr(const size_t size, const uint16_t attrs)
{
- ia_css_ptr data;
-
- WARN_ON(attrs & MMGR_ATTRIBUTE_CONTIGUOUS);
-
- data = hmm_alloc(size, HMM_BO_PRIVATE, 0, NULL,
- attrs & MMGR_ATTRIBUTE_CACHED);
-
- if (!data)
- return 0;
-
- if (attrs & MMGR_ATTRIBUTE_CLEARED)
- hmm_set(data, 0, size);
-
- return (ia_css_ptr)data;
+ return hmm_alloc(size, HMM_BO_PRIVATE, 0, NULL, attrs);
}

void mmgr_load(const hrt_vaddress vaddr, void *data, const size_t size)
diff --git a/drivers/staging/media/atomisp/pci/runtime/frame/src/frame.c b/drivers/staging/media/atomisp/pci/runtime/frame/src/frame.c
index 75edd79b7968..9a9c1fffd3d9 100644
--- a/drivers/staging/media/atomisp/pci/runtime/frame/src/frame.c
+++ b/drivers/staging/media/atomisp/pci/runtime/frame/src/frame.c
@@ -178,7 +178,7 @@ enum ia_css_err ia_css_frame_map(struct ia_css_frame **frame,
}

return hmm_alloc(me->data_bytes, HMM_BO_USER, 0, data,
- attribute & MMGR_ATTRIBUTE_CACHED);
+ attribute & ATOMISP_MAP_FLAG_CACHED);

if (me->data == mmgr_NULL)
err = IA_CSS_ERR_INVALID_ARGUMENTS;
@@ -799,7 +799,7 @@ static enum ia_css_err frame_allocate_buffer_data(struct ia_css_frame *frame)
#endif
frame->data = mmgr_alloc_attr(frame->data_bytes,
frame->contiguous ?
- MMGR_ATTRIBUTE_CONTIGUOUS : 0);
+ ATOMISP_MAP_FLAG_CONTIGUOUS : 0);

if (frame->data == mmgr_NULL)
return IA_CSS_ERR_CANNOT_ALLOCATE_MEMORY;
diff --git a/drivers/staging/media/atomisp/pci/sh_css_params.c b/drivers/staging/media/atomisp/pci/sh_css_params.c
index 0a59ef0d4bce..00388e563668 100644
--- a/drivers/staging/media/atomisp/pci/sh_css_params.c
+++ b/drivers/staging/media/atomisp/pci/sh_css_params.c
@@ -3267,11 +3267,11 @@ sh_css_params_init(void) {
xmem_sp_stage_ptrs[p][i] =
ia_css_refcount_increment(-1,
mmgr_alloc_attr(sizeof(struct sh_css_sp_stage),
- MMGR_ATTRIBUTE_CLEARED));
+ ATOMISP_MAP_FLAG_CLEARED));
xmem_isp_stage_ptrs[p][i] =
ia_css_refcount_increment(-1,
mmgr_alloc_attr(sizeof(struct sh_css_sp_stage),
- MMGR_ATTRIBUTE_CLEARED));
+ ATOMISP_MAP_FLAG_CLEARED));

if ((xmem_sp_stage_ptrs[p][i] == mmgr_NULL) ||
(xmem_isp_stage_ptrs[p][i] == mmgr_NULL)) {
@@ -3290,10 +3290,10 @@ sh_css_params_init(void) {
sp_ddr_ptrs = ia_css_refcount_increment(-1,
mmgr_alloc_attr(CEIL_MUL(sizeof(struct sh_css_ddr_address_map),
HIVE_ISP_DDR_WORD_BYTES),
- MMGR_ATTRIBUTE_CLEARED));
+ ATOMISP_MAP_FLAG_CLEARED));
xmem_sp_group_ptrs = ia_css_refcount_increment(-1,
mmgr_alloc_attr(sizeof(struct sh_css_sp_group),
- MMGR_ATTRIBUTE_CLEARED));
+ ATOMISP_MAP_FLAG_CLEARED));

if ((sp_ddr_ptrs == mmgr_NULL) ||
(xmem_sp_group_ptrs == mmgr_NULL))
--
2.26.2
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