[Intel-gfx] [PATCH v3] drm/i915/gvt: clean up intel_gvt.h as interface for i915 core
Zhenyu Wang
zhenyuw at linux.intel.com
Thu Oct 20 08:26:14 UTC 2016
i915 core should only call functions and structures exposed through
intel_gvt.h. Remove internal gvt.h and i915_pvinfo.h.
Change for internal intel_gvt structure as private handler which
not requires to expose gvt internal structure for i915 core.
v2: Fix per Chris's comment
- carefully handle dev_priv->gvt assignment
- add necessary bracket for macro helper
- forward declartion struct intel_gvt
- keep free operation within same file handling alloc
v3: fix use after free and remove intel_gvt.initialized
Signed-off-by: Zhenyu Wang <zhenyuw at linux.intel.com>
---
drivers/gpu/drm/i915/gvt/aperture_gm.c | 1 +
drivers/gpu/drm/i915/gvt/cfg_space.c | 1 +
drivers/gpu/drm/i915/gvt/cmd_parser.c | 2 ++
drivers/gpu/drm/i915/gvt/display.c | 1 +
drivers/gpu/drm/i915/gvt/edid.c | 1 +
drivers/gpu/drm/i915/gvt/execlist.c | 1 +
drivers/gpu/drm/i915/gvt/firmware.c | 2 ++
drivers/gpu/drm/i915/gvt/gtt.c | 2 ++
drivers/gpu/drm/i915/gvt/gvt.c | 19 +++++++++++++------
drivers/gpu/drm/i915/gvt/gvt.h | 4 ++--
drivers/gpu/drm/i915/gvt/handlers.c | 2 ++
drivers/gpu/drm/i915/gvt/interrupt.c | 1 +
drivers/gpu/drm/i915/gvt/mmio.c | 1 +
drivers/gpu/drm/i915/gvt/opregion.c | 1 +
drivers/gpu/drm/i915/gvt/render.c | 1 +
drivers/gpu/drm/i915/gvt/sched_policy.c | 1 +
drivers/gpu/drm/i915/gvt/scheduler.c | 5 +++--
drivers/gpu/drm/i915/gvt/vgpu.c | 2 ++
drivers/gpu/drm/i915/i915_drv.h | 4 ++--
drivers/gpu/drm/i915/intel_gvt.h | 3 +--
20 files changed, 41 insertions(+), 14 deletions(-)
diff --git a/drivers/gpu/drm/i915/gvt/aperture_gm.c b/drivers/gpu/drm/i915/gvt/aperture_gm.c
index e0211f8..db503c1 100644
--- a/drivers/gpu/drm/i915/gvt/aperture_gm.c
+++ b/drivers/gpu/drm/i915/gvt/aperture_gm.c
@@ -35,6 +35,7 @@
*/
#include "i915_drv.h"
+#include "gvt.h"
#define MB_TO_BYTES(mb) ((mb) << 20ULL)
#define BYTES_TO_MB(b) ((b) >> 20ULL)
diff --git a/drivers/gpu/drm/i915/gvt/cfg_space.c b/drivers/gpu/drm/i915/gvt/cfg_space.c
index 16360e4..4c68774 100644
--- a/drivers/gpu/drm/i915/gvt/cfg_space.c
+++ b/drivers/gpu/drm/i915/gvt/cfg_space.c
@@ -32,6 +32,7 @@
*/
#include "i915_drv.h"
+#include "gvt.h"
enum {
INTEL_GVT_PCI_BAR_GTTMMIO = 0,
diff --git a/drivers/gpu/drm/i915/gvt/cmd_parser.c b/drivers/gpu/drm/i915/gvt/cmd_parser.c
index 5808ee7..5b4658f 100644
--- a/drivers/gpu/drm/i915/gvt/cmd_parser.c
+++ b/drivers/gpu/drm/i915/gvt/cmd_parser.c
@@ -36,6 +36,8 @@
#include <linux/slab.h>
#include "i915_drv.h"
+#include "gvt.h"
+#include "i915_pvinfo.h"
#include "trace.h"
#define INVALID_OP (~0U)
diff --git a/drivers/gpu/drm/i915/gvt/display.c b/drivers/gpu/drm/i915/gvt/display.c
index 534000b..d8908d4 100644
--- a/drivers/gpu/drm/i915/gvt/display.c
+++ b/drivers/gpu/drm/i915/gvt/display.c
@@ -33,6 +33,7 @@
*/
#include "i915_drv.h"
+#include "gvt.h"
static int get_edp_pipe(struct intel_vgpu *vgpu)
{
diff --git a/drivers/gpu/drm/i915/gvt/edid.c b/drivers/gpu/drm/i915/gvt/edid.c
index a07e427..7e1da1c 100644
--- a/drivers/gpu/drm/i915/gvt/edid.c
+++ b/drivers/gpu/drm/i915/gvt/edid.c
@@ -33,6 +33,7 @@
*/
#include "i915_drv.h"
+#include "gvt.h"
#define GMBUS1_TOTAL_BYTES_SHIFT 16
#define GMBUS1_TOTAL_BYTES_MASK 0x1ff
diff --git a/drivers/gpu/drm/i915/gvt/execlist.c b/drivers/gpu/drm/i915/gvt/execlist.c
index c50a3d1..b87b4f5 100644
--- a/drivers/gpu/drm/i915/gvt/execlist.c
+++ b/drivers/gpu/drm/i915/gvt/execlist.c
@@ -33,6 +33,7 @@
*/
#include "i915_drv.h"
+#include "gvt.h"
#define _EL_OFFSET_STATUS 0x234
#define _EL_OFFSET_STATUS_BUF 0x370
diff --git a/drivers/gpu/drm/i915/gvt/firmware.c b/drivers/gpu/drm/i915/gvt/firmware.c
index 4578a4d..d068a52 100644
--- a/drivers/gpu/drm/i915/gvt/firmware.c
+++ b/drivers/gpu/drm/i915/gvt/firmware.c
@@ -32,6 +32,8 @@
#include <linux/crc32.h>
#include "i915_drv.h"
+#include "gvt.h"
+#include "i915_pvinfo.h"
#define FIRMWARE_VERSION (0x0)
diff --git a/drivers/gpu/drm/i915/gvt/gtt.c b/drivers/gpu/drm/i915/gvt/gtt.c
index 29de179..0722d1e 100644
--- a/drivers/gpu/drm/i915/gvt/gtt.c
+++ b/drivers/gpu/drm/i915/gvt/gtt.c
@@ -34,6 +34,8 @@
*/
#include "i915_drv.h"
+#include "gvt.h"
+#include "i915_pvinfo.h"
#include "trace.h"
static bool enable_out_of_sync = false;
diff --git a/drivers/gpu/drm/i915/gvt/gvt.c b/drivers/gpu/drm/i915/gvt/gvt.c
index e72e26c..31b59d4 100644
--- a/drivers/gpu/drm/i915/gvt/gvt.c
+++ b/drivers/gpu/drm/i915/gvt/gvt.c
@@ -35,6 +35,7 @@
#include <linux/kthread.h>
#include "i915_drv.h"
+#include "gvt.h"
struct intel_gvt_host intel_gvt_host;
@@ -173,9 +174,9 @@ static int init_service_thread(struct intel_gvt *gvt)
*/
void intel_gvt_clean_device(struct drm_i915_private *dev_priv)
{
- struct intel_gvt *gvt = &dev_priv->gvt;
+ struct intel_gvt *gvt = to_gvt(dev_priv);
- if (WARN_ON(!gvt->initialized))
+ if (WARN_ON(!gvt))
return;
clean_service_thread(gvt);
@@ -188,7 +189,8 @@ void intel_gvt_clean_device(struct drm_i915_private *dev_priv)
intel_gvt_clean_mmio_info(gvt);
intel_gvt_free_firmware(gvt);
- gvt->initialized = false;
+ kfree(dev_priv->gvt);
+ dev_priv->gvt = NULL;
}
/**
@@ -204,7 +206,7 @@ void intel_gvt_clean_device(struct drm_i915_private *dev_priv)
*/
int intel_gvt_init_device(struct drm_i915_private *dev_priv)
{
- struct intel_gvt *gvt = &dev_priv->gvt;
+ struct intel_gvt *gvt;
int ret;
/*
@@ -214,9 +216,13 @@ int intel_gvt_init_device(struct drm_i915_private *dev_priv)
if (WARN_ON(!intel_gvt_host.initialized))
return -EINVAL;
- if (WARN_ON(gvt->initialized))
+ if (WARN_ON(dev_priv->gvt))
return -EEXIST;
+ gvt = kzalloc(sizeof(struct intel_gvt), GFP_KERNEL);
+ if (!gvt)
+ return -ENOMEM;
+
gvt_dbg_core("init gvt device\n");
mutex_init(&gvt->lock);
@@ -261,7 +267,7 @@ int intel_gvt_init_device(struct drm_i915_private *dev_priv)
goto out_clean_cmd_parser;
gvt_dbg_core("gvt device creation is done\n");
- gvt->initialized = true;
+ dev_priv->gvt = gvt;
return 0;
out_clean_cmd_parser:
@@ -280,5 +286,6 @@ out_free_firmware:
intel_gvt_free_firmware(gvt);
out_clean_mmio_info:
intel_gvt_clean_mmio_info(gvt);
+ kfree(gvt);
return ret;
}
diff --git a/drivers/gpu/drm/i915/gvt/gvt.h b/drivers/gpu/drm/i915/gvt/gvt.h
index 1564554..e2ebc79 100644
--- a/drivers/gpu/drm/i915/gvt/gvt.h
+++ b/drivers/gpu/drm/i915/gvt/gvt.h
@@ -192,8 +192,6 @@ struct intel_gvt_opregion {
struct intel_gvt {
struct mutex lock;
- bool initialized;
-
struct drm_i915_private *dev_priv;
struct idr vgpu_idr; /* vGPU IDR pool */
@@ -213,6 +211,8 @@ struct intel_gvt {
unsigned long service_request;
};
+#define to_gvt(dev_priv) (struct intel_gvt *)((dev_priv)->gvt)
+
enum {
INTEL_GVT_REQUEST_EMULATE_VBLANK = 0,
};
diff --git a/drivers/gpu/drm/i915/gvt/handlers.c b/drivers/gpu/drm/i915/gvt/handlers.c
index e8ec403..b21115f 100644
--- a/drivers/gpu/drm/i915/gvt/handlers.c
+++ b/drivers/gpu/drm/i915/gvt/handlers.c
@@ -37,6 +37,8 @@
*/
#include "i915_drv.h"
+#include "gvt.h"
+#include "i915_pvinfo.h"
/* XXX FIXME i915 has changed PP_XXX definition */
#define PCH_PP_STATUS _MMIO(0xc7200)
diff --git a/drivers/gpu/drm/i915/gvt/interrupt.c b/drivers/gpu/drm/i915/gvt/interrupt.c
index 84d7174..e43ef72 100644
--- a/drivers/gpu/drm/i915/gvt/interrupt.c
+++ b/drivers/gpu/drm/i915/gvt/interrupt.c
@@ -30,6 +30,7 @@
*/
#include "i915_drv.h"
+#include "gvt.h"
/* common offset among interrupt control registers */
#define regbase_to_isr(base) (base)
diff --git a/drivers/gpu/drm/i915/gvt/mmio.c b/drivers/gpu/drm/i915/gvt/mmio.c
index ce3af95..585b01f 100644
--- a/drivers/gpu/drm/i915/gvt/mmio.c
+++ b/drivers/gpu/drm/i915/gvt/mmio.c
@@ -34,6 +34,7 @@
*/
#include "i915_drv.h"
+#include "gvt.h"
/**
* intel_vgpu_gpa_to_mmio_offset - translate a GPA to MMIO offset
diff --git a/drivers/gpu/drm/i915/gvt/opregion.c b/drivers/gpu/drm/i915/gvt/opregion.c
index 46cc240..53ac81f 100644
--- a/drivers/gpu/drm/i915/gvt/opregion.c
+++ b/drivers/gpu/drm/i915/gvt/opregion.c
@@ -23,6 +23,7 @@
#include <linux/acpi.h>
#include "i915_drv.h"
+#include "gvt.h"
static int init_vgpu_opregion(struct intel_vgpu *vgpu, u32 gpa)
{
diff --git a/drivers/gpu/drm/i915/gvt/render.c b/drivers/gpu/drm/i915/gvt/render.c
index f54ab85..feebb65 100644
--- a/drivers/gpu/drm/i915/gvt/render.c
+++ b/drivers/gpu/drm/i915/gvt/render.c
@@ -34,6 +34,7 @@
*/
#include "i915_drv.h"
+#include "gvt.h"
struct render_mmio {
int ring_id;
diff --git a/drivers/gpu/drm/i915/gvt/sched_policy.c b/drivers/gpu/drm/i915/gvt/sched_policy.c
index c607354..278db0c 100644
--- a/drivers/gpu/drm/i915/gvt/sched_policy.c
+++ b/drivers/gpu/drm/i915/gvt/sched_policy.c
@@ -32,6 +32,7 @@
*/
#include "i915_drv.h"
+#include "gvt.h"
static bool vgpu_has_pending_workload(struct intel_vgpu *vgpu)
{
diff --git a/drivers/gpu/drm/i915/gvt/scheduler.c b/drivers/gpu/drm/i915/gvt/scheduler.c
index b15cdf5..01d23ad 100644
--- a/drivers/gpu/drm/i915/gvt/scheduler.c
+++ b/drivers/gpu/drm/i915/gvt/scheduler.c
@@ -33,10 +33,11 @@
*
*/
-#include "i915_drv.h"
-
#include <linux/kthread.h>
+#include "i915_drv.h"
+#include "gvt.h"
+
#define RING_CTX_OFF(x) \
offsetof(struct execlist_ring_context, x)
diff --git a/drivers/gpu/drm/i915/gvt/vgpu.c b/drivers/gpu/drm/i915/gvt/vgpu.c
index e5e0a72..9401436 100644
--- a/drivers/gpu/drm/i915/gvt/vgpu.c
+++ b/drivers/gpu/drm/i915/gvt/vgpu.c
@@ -32,6 +32,8 @@
*/
#include "i915_drv.h"
+#include "gvt.h"
+#include "i915_pvinfo.h"
static void clean_vgpu_mmio(struct intel_vgpu *vgpu)
{
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index 4d1133f..5024ad9 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -1778,7 +1778,7 @@ struct drm_i915_private {
struct i915_virtual_gpu vgpu;
- struct intel_gvt gvt;
+ struct intel_gvt *gvt;
struct intel_guc guc;
@@ -2992,7 +2992,7 @@ int intel_wait_for_register_fw(struct drm_i915_private *dev_priv,
static inline bool intel_gvt_active(struct drm_i915_private *dev_priv)
{
- return dev_priv->gvt.initialized;
+ return dev_priv->gvt;
}
static inline bool intel_vgpu_active(struct drm_i915_private *dev_priv)
diff --git a/drivers/gpu/drm/i915/intel_gvt.h b/drivers/gpu/drm/i915/intel_gvt.h
index 0f00105..25df2d6 100644
--- a/drivers/gpu/drm/i915/intel_gvt.h
+++ b/drivers/gpu/drm/i915/intel_gvt.h
@@ -24,8 +24,7 @@
#ifndef _INTEL_GVT_H_
#define _INTEL_GVT_H_
-#include "i915_pvinfo.h"
-#include "gvt/gvt.h"
+struct intel_gvt;
#ifdef CONFIG_DRM_I915_GVT
int intel_gvt_init(struct drm_i915_private *dev_priv);
--
2.9.3
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