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drm/xe/display: Xe stolen memory handling for fbc support

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Add Xe stolen memory handling for fbc.

v3:
  - v2: Add parenthesis around parameter in i915_gem_stolen_node_allocated
v2:
  - define i915_gem_stolen_area_address/size as !WARN_ON(1)
  - squash common type addition into this patch

Signed-off-by: Jouni Högander <jouni.hogander@intel.com>
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
This commit is contained in:
Jouni Högander 2023-09-13 12:54:10 +03:00 committed by Rodrigo Vivi
parent c3744ceb99
commit c5a2eadd72
2 changed files with 80 additions and 0 deletions
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1
drivers/gpu/drm/xe/compat-i915-headers/i915_drv.h
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@ -19,6 +19,7 @@
#include "xe_bo.h"
#include "xe_pm.h"
#include "xe_step.h"
#include "i915_gem_stolen.h"
#include "i915_gpu_error.h"
#include "i915_reg_defs.h"
#include "i915_utils.h"

79
drivers/gpu/drm/xe/compat-i915-headers/i915_gem_stolen.h Normal file
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@ -0,0 +1,79 @@
#ifndef _I915_GEM_STOLEN_H_
#define _I915_GEM_STOLEN_H_
#include "xe_ttm_stolen_mgr.h"
#include "xe_res_cursor.h"
struct xe_bo;
struct i915_stolen_fb {
struct xe_bo *bo;
};
static inline int i915_gem_stolen_insert_node_in_range(struct xe_device *xe,
struct i915_stolen_fb *fb,
u32 size, u32 align,
u32 start, u32 end)
{
struct xe_bo *bo;
int err;
u32 flags = XE_BO_CREATE_PINNED_BIT | XE_BO_CREATE_STOLEN_BIT;
bo = xe_bo_create_locked_range(xe, xe_device_get_root_tile(xe),
NULL, size, start, end,
ttm_bo_type_kernel, flags);
if (IS_ERR(bo)) {
err = PTR_ERR(bo);
bo = NULL;
return err;
}
err = xe_bo_pin(bo);
xe_bo_unlock_vm_held(bo);
if (err) {
xe_bo_put(fb->bo);
bo = NULL;
}
fb->bo = bo;
return err;
}
static inline int i915_gem_stolen_insert_node(struct xe_device *xe,
struct i915_stolen_fb *fb,
u32 size, u32 align)
{
/* Not used on xe */
BUG_ON(1);
return -ENODEV;
}
static inline void i915_gem_stolen_remove_node(struct xe_device *xe,
struct i915_stolen_fb *fb)
{
xe_bo_unpin_map_no_vm(fb->bo);
fb->bo = NULL;
}
#define i915_gem_stolen_initialized(xe) (!!ttm_manager_type(&(xe)->ttm, XE_PL_STOLEN))
#define i915_gem_stolen_node_allocated(fb) (!!((fb)->bo))
static inline u32 i915_gem_stolen_node_offset(struct i915_stolen_fb *fb)
{
struct xe_res_cursor res;
xe_res_first(fb->bo->ttm.resource, 0, 4096, &res);
return res.start;
}
/* Used for < gen4. These are not supported by Xe */
#define i915_gem_stolen_area_address(xe) (!WARN_ON(1))
/* Used for gen9 specific WA. Gen9 is not supported by Xe */
#define i915_gem_stolen_area_size(xe) (!WARN_ON(1))
#define i915_gem_stolen_node_address(xe, fb) (xe_ttm_stolen_gpu_offset(xe) + \
i915_gem_stolen_node_offset(fb))
#define i915_gem_stolen_node_size(fb) ((u64)((fb)->bo->ttm.base.size))
#endif