[PATCH 1/5] drm/i915/gvt: Remove typedef intel_gvt_gtt_type_t
Aleksei Gimbitskii
aleksei.gimbitskii at intel.com
Mon Apr 8 05:54:58 UTC 2019
The klocwork static code analyzer takes the enumeration as the full range
of intel_gvt_gtt_type_t. But the full range of intel_gvt_gtt_type_t will
never be used in full range. For example, the GTT_TYPE_INVALID will never
be used as an index of an array. So we will not use it as a type but only
the enumeration.
This patch fixed the critial issues #483, #551, #665 reported by
klockwork.
Signed-off-by: Aleksei Gimbitskii <aleksei.gimbitskii at intel.com>
Cc: Zhenyu Wang <zhenyuw at linux.intel.com>
Cc: Zhi Wang <zhi.a.wang at intel.com>
---
drivers/gpu/drm/i915/gvt/gtt.c | 12 ++++++------
drivers/gpu/drm/i915/gvt/gtt.h | 14 +++++++-------
2 files changed, 13 insertions(+), 13 deletions(-)
diff --git a/drivers/gpu/drm/i915/gvt/gtt.c b/drivers/gpu/drm/i915/gvt/gtt.c
index 88ed2e9df253..8dcb6223b985 100644
--- a/drivers/gpu/drm/i915/gvt/gtt.c
+++ b/drivers/gpu/drm/i915/gvt/gtt.c
@@ -805,7 +805,7 @@ static int reclaim_one_ppgtt_mm(struct intel_gvt *gvt);
/* Allocate shadow page table without guest page. */
static struct intel_vgpu_ppgtt_spt *ppgtt_alloc_spt(
- struct intel_vgpu *vgpu, intel_gvt_gtt_type_t type)
+ struct intel_vgpu *vgpu, int type)
{
struct device *kdev = &vgpu->gvt->dev_priv->drm.pdev->dev;
struct intel_vgpu_ppgtt_spt *spt = NULL;
@@ -855,7 +855,7 @@ static struct intel_vgpu_ppgtt_spt *ppgtt_alloc_spt(
/* Allocate shadow page table associated with specific gfn. */
static struct intel_vgpu_ppgtt_spt *ppgtt_alloc_spt_gfn(
- struct intel_vgpu *vgpu, intel_gvt_gtt_type_t type,
+ struct intel_vgpu *vgpu, int type,
unsigned long gfn, bool guest_pde_ips)
{
struct intel_vgpu_ppgtt_spt *spt;
@@ -930,7 +930,7 @@ static int ppgtt_invalidate_spt_by_shadow_entry(struct intel_vgpu *vgpu,
{
struct intel_gvt_gtt_pte_ops *ops = vgpu->gvt->gtt.pte_ops;
struct intel_vgpu_ppgtt_spt *s;
- intel_gvt_gtt_type_t cur_pt_type;
+ int cur_pt_type;
GEM_BUG_ON(!gtt_type_is_pt(get_next_pt_type(e->type)));
@@ -1849,7 +1849,7 @@ static void vgpu_free_mm(struct intel_vgpu_mm *mm)
* Zero on success, negative error code in pointer if failed.
*/
struct intel_vgpu_mm *intel_vgpu_create_ppgtt_mm(struct intel_vgpu *vgpu,
- intel_gvt_gtt_type_t root_entry_type, u64 pdps[])
+ int root_entry_type, u64 pdps[])
{
struct intel_gvt *gvt = vgpu->gvt;
struct intel_vgpu_mm *mm;
@@ -2303,7 +2303,7 @@ int intel_vgpu_emulate_ggtt_mmio_write(struct intel_vgpu *vgpu,
}
static int alloc_scratch_pages(struct intel_vgpu *vgpu,
- intel_gvt_gtt_type_t type)
+ int type)
{
struct intel_vgpu_gtt *gtt = &vgpu->gtt;
struct intel_gvt_gtt_pte_ops *ops = vgpu->gvt->gtt.pte_ops;
@@ -2588,7 +2588,7 @@ struct intel_vgpu_mm *intel_vgpu_find_ppgtt_mm(struct intel_vgpu *vgpu,
* Zero on success, negative error code if failed.
*/
struct intel_vgpu_mm *intel_vgpu_get_ppgtt_mm(struct intel_vgpu *vgpu,
- intel_gvt_gtt_type_t root_entry_type, u64 pdps[])
+ int root_entry_type, u64 pdps[])
{
struct intel_vgpu_mm *mm;
diff --git a/drivers/gpu/drm/i915/gvt/gtt.h b/drivers/gpu/drm/i915/gvt/gtt.h
index 32c573aea494..645ddc1bd223 100644
--- a/drivers/gpu/drm/i915/gvt/gtt.h
+++ b/drivers/gpu/drm/i915/gvt/gtt.h
@@ -95,7 +95,7 @@ struct intel_gvt_gtt {
unsigned long scratch_mfn;
};
-typedef enum {
+enum {
GTT_TYPE_INVALID = -1,
GTT_TYPE_GGTT_PTE,
@@ -124,7 +124,7 @@ typedef enum {
GTT_TYPE_PPGTT_PML4_PT,
GTT_TYPE_MAX,
-} intel_gvt_gtt_type_t;
+};
enum intel_gvt_mm_type {
INTEL_GVT_MM_GGTT,
@@ -148,7 +148,7 @@ struct intel_vgpu_mm {
union {
struct {
- intel_gvt_gtt_type_t root_entry_type;
+ int root_entry_type;
/*
* The 4 PDPs in ring context. For 48bit addressing,
* only PDP0 is valid and point to PML4. For 32it
@@ -169,7 +169,7 @@ struct intel_vgpu_mm {
};
struct intel_vgpu_mm *intel_vgpu_create_ppgtt_mm(struct intel_vgpu *vgpu,
- intel_gvt_gtt_type_t root_entry_type, u64 pdps[]);
+ int root_entry_type, u64 pdps[]);
static inline void intel_vgpu_mm_get(struct intel_vgpu_mm *mm)
{
@@ -233,7 +233,7 @@ struct intel_vgpu_ppgtt_spt {
struct intel_vgpu *vgpu;
struct {
- intel_gvt_gtt_type_t type;
+ int type;
bool pde_ips; /* for 64KB PTEs */
void *vaddr;
struct page *page;
@@ -241,7 +241,7 @@ struct intel_vgpu_ppgtt_spt {
} shadow_page;
struct {
- intel_gvt_gtt_type_t type;
+ int type;
bool pde_ips; /* for 64KB PTEs */
unsigned long gfn;
unsigned long write_cnt;
@@ -267,7 +267,7 @@ struct intel_vgpu_mm *intel_vgpu_find_ppgtt_mm(struct intel_vgpu *vgpu,
u64 pdps[]);
struct intel_vgpu_mm *intel_vgpu_get_ppgtt_mm(struct intel_vgpu *vgpu,
- intel_gvt_gtt_type_t root_entry_type, u64 pdps[]);
+ int root_entry_type, u64 pdps[]);
int intel_vgpu_put_ppgtt_mm(struct intel_vgpu *vgpu, u64 pdps[]);
--
2.17.1
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