On 2020-03-04 3:21 p.m., Yong Zhao wrote:
ALLOC_MEM_FLAGS_* used are the same as the KFD_IOC_ALLOC_MEM_FLAGS_*,
but they are interweavedly used in kernel driver, resulting in bad
readability. For example, KFD_IOC_ALLOC_MEM_FLAGS_COHERENT is totally
not referenced in kernel, and it functions in the kernel through
ALLOC_MEM_FLAGS_COHERENT, causing unnecessary confusion.
Replace all occurrences of ALLOC_MEM_FLAGS_* by
KFD_IOC_ALLOC_MEM_FLAGS_* to solve the problem.
Change-Id: Iced6ed3698167296c97b14e7e4569883859d619c
Signed-off-by: Yong Zhao <Yong.Zhao@xxxxxxx>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c | 9 +++--
.../gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c | 38 +++++++++++--------
drivers/gpu/drm/amd/amdkfd/kfd_process.c | 13 ++++---
.../gpu/drm/amd/include/kgd_kfd_interface.h | 21 ----------
4 files changed, 36 insertions(+), 45 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c
index 726c91ab6761..affaa0d4b636 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c
@@ -29,6 +29,7 @@
#include <linux/module.h>
#include <linux/dma-buf.h>
#include "amdgpu_xgmi.h"
+#include <uapi/linux/kfd_ioctl.h>
static const unsigned int compute_vmid_bitmap = 0xFF00;
@@ -500,11 +501,13 @@ int amdgpu_amdkfd_get_dmabuf_info(struct kgd_dev *kgd, int dma_buf_fd,
r = amdgpu_bo_get_metadata(bo, metadata_buffer, buffer_size,
metadata_size, &metadata_flags);
if (flags) {
- *flags = (bo->preferred_domains & AMDGPU_GEM_DOMAIN_VRAM) ?
- ALLOC_MEM_FLAGS_VRAM : ALLOC_MEM_FLAGS_GTT;
+ if (bo->preferred_domains & AMDGPU_GEM_DOMAIN_VRAM)
+ *flags = KFD_IOC_ALLOC_MEM_FLAGS_VRAM;
+ else
+ *flags = KFD_IOC_ALLOC_MEM_FLAGS_GTT;
You're sneaking in some personal preference (changing the trinary (cond
? a : b) operator to if-else) with the renaming change. Personally I
find the trinary operator just as readable and more concise.
if (bo->flags & AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED)
- *flags |= ALLOC_MEM_FLAGS_PUBLIC;
+ *flags |= KFD_IOC_ALLOC_MEM_FLAGS_PUBLIC;
}
out_put:
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c
index e4481caed648..c81fe7011e88 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c
@@ -29,6 +29,7 @@
#include "amdgpu_vm.h"
#include "amdgpu_amdkfd.h"
#include "amdgpu_dma_buf.h"
+#include <uapi/linux/kfd_ioctl.h>
/* BO flag to indicate a KFD userptr BO */
#define AMDGPU_AMDKFD_USERPTR_BO (1ULL << 63)
@@ -400,18 +401,18 @@ static int vm_update_pds(struct amdgpu_vm *vm, struct amdgpu_sync *sync)
static uint64_t get_pte_flags(struct amdgpu_device *adev, struct kgd_mem *mem)
{
struct amdgpu_device *bo_adev = amdgpu_ttm_adev(mem->bo->tbo.bdev);
- bool coherent = mem->alloc_flags & ALLOC_MEM_FLAGS_COHERENT;
+ bool coherent = mem->alloc_flags & KFD_IOC_ALLOC_MEM_FLAGS_COHERENT;
uint32_t mapping_flags;
mapping_flags = AMDGPU_VM_PAGE_READABLE;
- if (mem->alloc_flags & ALLOC_MEM_FLAGS_WRITABLE)
+ if (mem->alloc_flags & KFD_IOC_ALLOC_MEM_FLAGS_WRITABLE)
mapping_flags |= AMDGPU_VM_PAGE_WRITEABLE;
- if (mem->alloc_flags & ALLOC_MEM_FLAGS_EXECUTABLE)
+ if (mem->alloc_flags & KFD_IOC_ALLOC_MEM_FLAGS_EXECUTABLE)
mapping_flags |= AMDGPU_VM_PAGE_EXECUTABLE;
switch (adev->asic_type) {
case CHIP_ARCTURUS:
- if (mem->alloc_flags & ALLOC_MEM_FLAGS_VRAM) {
+ if (mem->alloc_flags & KFD_IOC_ALLOC_MEM_FLAGS_VRAM) {
if (bo_adev == adev)
mapping_flags |= coherent ?
AMDGPU_VM_MTYPE_CC : AMDGPU_VM_MTYPE_RW;
@@ -1160,24 +1161,24 @@ int amdgpu_amdkfd_gpuvm_alloc_memory_of_gpu(
/*
* Check on which domain to allocate BO
*/
- if (flags & ALLOC_MEM_FLAGS_VRAM) {
+ if (flags & KFD_IOC_ALLOC_MEM_FLAGS_VRAM) {
domain = alloc_domain = AMDGPU_GEM_DOMAIN_VRAM;
alloc_flags = AMDGPU_GEM_CREATE_VRAM_WIPE_ON_RELEASE;
- alloc_flags |= (flags & ALLOC_MEM_FLAGS_PUBLIC) ?
+ alloc_flags |= (flags & KFD_IOC_ALLOC_MEM_FLAGS_PUBLIC) ?
AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED :
AMDGPU_GEM_CREATE_NO_CPU_ACCESS;
- } else if (flags & ALLOC_MEM_FLAGS_GTT) {
+ } else if (flags & KFD_IOC_ALLOC_MEM_FLAGS_GTT) {
domain = alloc_domain = AMDGPU_GEM_DOMAIN_GTT;
alloc_flags = 0;
- } else if (flags & ALLOC_MEM_FLAGS_USERPTR) {
+ } else if (flags & KFD_IOC_ALLOC_MEM_FLAGS_USERPTR) {
domain = AMDGPU_GEM_DOMAIN_GTT;
alloc_domain = AMDGPU_GEM_DOMAIN_CPU;
alloc_flags = 0;
if (!offset || !*offset)
return -EINVAL;
user_addr = untagged_addr(*offset);
- } else if (flags & (ALLOC_MEM_FLAGS_DOORBELL |
- ALLOC_MEM_FLAGS_MMIO_REMAP)) {
+ } else if (flags & (KFD_IOC_ALLOC_MEM_FLAGS_DOORBELL |
+ KFD_IOC_ALLOC_MEM_FLAGS_MMIO_REMAP)) {
domain = AMDGPU_GEM_DOMAIN_GTT;
alloc_domain = AMDGPU_GEM_DOMAIN_CPU;
bo_type = ttm_bo_type_sg;
@@ -1198,7 +1199,7 @@ int amdgpu_amdkfd_gpuvm_alloc_memory_of_gpu(
}
INIT_LIST_HEAD(&(*mem)->bo_va_list);
mutex_init(&(*mem)->lock);
- (*mem)->aql_queue = !!(flags & ALLOC_MEM_FLAGS_AQL_QUEUE_MEM);
+ (*mem)->aql_queue = !!(flags & KFD_IOC_ALLOC_MEM_FLAGS_AQL_QUEUE_MEM);
/* Workaround for AQL queue wraparound bug. Map the same
* memory twice. That means we only actually allocate half
@@ -1652,6 +1653,7 @@ int amdgpu_amdkfd_gpuvm_import_dmabuf(struct kgd_dev *kgd,
struct drm_gem_object *obj;
struct amdgpu_bo *bo;
struct amdgpu_vm *avm = (struct amdgpu_vm *)vm;
+ uint32_t flags;
if (dma_buf->ops != &amdgpu_dmabuf_ops)
/* Can't handle non-graphics buffers */
@@ -1680,10 +1682,16 @@ int amdgpu_amdkfd_gpuvm_import_dmabuf(struct kgd_dev *kgd,
INIT_LIST_HEAD(&(*mem)->bo_va_list);
mutex_init(&(*mem)->lock);
- (*mem)->alloc_flags =
- ((bo->preferred_domains & AMDGPU_GEM_DOMAIN_VRAM) ?
- ALLOC_MEM_FLAGS_VRAM : ALLOC_MEM_FLAGS_GTT) |
- ALLOC_MEM_FLAGS_WRITABLE | ALLOC_MEM_FLAGS_EXECUTABLE;
+
+ flags = KFD_IOC_ALLOC_MEM_FLAGS_WRITABLE
+ | KFD_IOC_ALLOC_MEM_FLAGS_EXECUTABLE;
+
+ if (bo->preferred_domains & AMDGPU_GEM_DOMAIN_VRAM)
+ flags |= KFD_IOC_ALLOC_MEM_FLAGS_VRAM;
+ else
+ flags |= KFD_IOC_ALLOC_MEM_FLAGS_GTT;
+
+ (*mem)->alloc_flags = flags;
Same as above. The original code was only 4 lines and a single
statement. Your code is 8 lines, four statements, plus an extra local
variable. I don't see how this is an improvement.
Regards,
Felix
(*mem)->bo = amdgpu_bo_ref(bo);
(*mem)->va = va;
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_process.c b/drivers/gpu/drm/amd/amdkfd/kfd_process.c
index 22abdbc6dfd7..1c7bfc842f06 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_process.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_process.c
@@ -327,10 +327,10 @@ static int kfd_process_alloc_gpuvm(struct kfd_process_device *pdd,
static int kfd_process_device_reserve_ib_mem(struct kfd_process_device *pdd)
{
struct qcm_process_device *qpd = &pdd->qpd;
- uint32_t flags = ALLOC_MEM_FLAGS_GTT |
- ALLOC_MEM_FLAGS_NO_SUBSTITUTE |
- ALLOC_MEM_FLAGS_WRITABLE |
- ALLOC_MEM_FLAGS_EXECUTABLE;
+ uint32_t flags = KFD_IOC_ALLOC_MEM_FLAGS_GTT |
+ KFD_IOC_ALLOC_MEM_FLAGS_NO_SUBSTITUTE |
+ KFD_IOC_ALLOC_MEM_FLAGS_WRITABLE |
+ KFD_IOC_ALLOC_MEM_FLAGS_EXECUTABLE;
void *kaddr;
int ret;
@@ -692,8 +692,9 @@ static int kfd_process_device_init_cwsr_dgpu(struct kfd_process_device *pdd)
{
struct kfd_dev *dev = pdd->dev;
struct qcm_process_device *qpd = &pdd->qpd;
- uint32_t flags = ALLOC_MEM_FLAGS_GTT |
- ALLOC_MEM_FLAGS_NO_SUBSTITUTE | ALLOC_MEM_FLAGS_EXECUTABLE;
+ uint32_t flags = KFD_IOC_ALLOC_MEM_FLAGS_GTT
+ | KFD_IOC_ALLOC_MEM_FLAGS_NO_SUBSTITUTE
+ | KFD_IOC_ALLOC_MEM_FLAGS_EXECUTABLE;
void *kaddr;
int ret;
diff --git a/drivers/gpu/drm/amd/include/kgd_kfd_interface.h b/drivers/gpu/drm/amd/include/kgd_kfd_interface.h
index 0cee79d56075..a3c238c39ef5 100644
--- a/drivers/gpu/drm/amd/include/kgd_kfd_interface.h
+++ b/drivers/gpu/drm/amd/include/kgd_kfd_interface.h
@@ -167,27 +167,6 @@ struct tile_config {
#define KFD_MAX_NUM_OF_QUEUES_PER_DEVICE_DEFAULT 4096
-/*
- * Allocation flag domains
- * NOTE: This must match the corresponding definitions in kfd_ioctl.h.
- */
-#define ALLOC_MEM_FLAGS_VRAM (1 << 0)
-#define ALLOC_MEM_FLAGS_GTT (1 << 1)
-#define ALLOC_MEM_FLAGS_USERPTR (1 << 2)
-#define ALLOC_MEM_FLAGS_DOORBELL (1 << 3)
-#define ALLOC_MEM_FLAGS_MMIO_REMAP (1 << 4)
-
-/*
- * Allocation flags attributes/access options.
- * NOTE: This must match the corresponding definitions in kfd_ioctl.h.
- */
-#define ALLOC_MEM_FLAGS_WRITABLE (1 << 31)
-#define ALLOC_MEM_FLAGS_EXECUTABLE (1 << 30)
-#define ALLOC_MEM_FLAGS_PUBLIC (1 << 29)
-#define ALLOC_MEM_FLAGS_NO_SUBSTITUTE (1 << 28) /* TODO */
-#define ALLOC_MEM_FLAGS_AQL_QUEUE_MEM (1 << 27)
-#define ALLOC_MEM_FLAGS_COHERENT (1 << 26) /* For GFXv9 or later */
-
/**
* struct kfd2kgd_calls
*
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