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drm/vmwgfx: Add kms helpers for dirty- and readback functions

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We need to make the dirty- and readback functions callable without a struct
drm_file pointer. We also need to unify the handling of dirty- and readback
cliprects that are now implemented in various places across the kms system,
som add helpers to facilitate this.

Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: Sinclair Yeh <syeh@vmware.com>
This commit is contained in:
Thomas Hellstrom
2015-06-26 02:03:53 -07:00
parent 459d0fa735
commit 1a4b172ac9
6 changed files with 390 additions and 20 deletions
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69
drivers/gpu/drm/vmwgfx/vmwgfx_kms.h
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@@ -32,7 +32,50 @@
#include <drm/drm_crtc_helper.h>
#include "vmwgfx_drv.h"
/**
* struct vmw_kms_dirty - closure structure for the vmw_kms_helper_dirty
* function.
*
* @fifo_commit: Callback that is called once for each display unit after
* all clip rects. This function must commit the fifo space reserved by the
* helper. Set up by the caller.
* @clip: Callback that is called for each cliprect on each display unit.
* Set up by the caller.
* @fifo_reserve_size: Fifo size that the helper should try to allocat for
* each display unit. Set up by the caller.
* @dev_priv: Pointer to the device private. Set up by the helper.
* @unit: The current display unit. Set up by the helper before a call to @clip.
* @cmd: The allocated fifo space. Set up by the helper before the first @clip
* call.
* @num_hits: Number of clip rect commands for this display unit.
* Cleared by the helper before the first @clip call. Updated by the @clip
* callback.
* @fb_x: Clip rect left side in framebuffer coordinates.
* @fb_y: Clip rect right side in framebuffer coordinates.
* @unit_x1: Clip rect left side in crtc coordinates.
* @unit_y1: Clip rect top side in crtc coordinates.
* @unit_x2: Clip rect right side in crtc coordinates.
* @unit_y2: Clip rect bottom side in crtc coordinates.
*
* The clip rect coordinates are updated by the helper for each @clip call.
* Note that this may be derived from if more info needs to be passed between
* helper caller and helper callbacks.
*/
struct vmw_kms_dirty {
void (*fifo_commit)(struct vmw_kms_dirty *);
void (*clip)(struct vmw_kms_dirty *);
size_t fifo_reserve_size;
struct vmw_private *dev_priv;
struct vmw_display_unit *unit;
void *cmd;
u32 num_hits;
s32 fb_x;
s32 fb_y;
s32 unit_x1;
s32 unit_y1;
s32 unit_x2;
s32 unit_y2;
};
#define VMWGFX_NUM_DISPLAY_UNITS 8
@@ -173,7 +216,31 @@ int vmw_du_connector_fill_modes(struct drm_connector *connector,
int vmw_du_connector_set_property(struct drm_connector *connector,
struct drm_property *property,
uint64_t val);
int vmw_kms_helper_dirty(struct vmw_private *dev_priv,
struct vmw_framebuffer *framebuffer,
const struct drm_clip_rect *clips,
const struct drm_vmw_rect *vclips,
s32 dest_x, s32 dest_y,
int num_clips,
int increment,
struct vmw_kms_dirty *dirty);
int vmw_kms_helper_buffer_prepare(struct vmw_private *dev_priv,
struct vmw_dma_buffer *buf,
bool interruptible,
bool validate_as_mob);
void vmw_kms_helper_buffer_revert(struct vmw_dma_buffer *buf);
void vmw_kms_helper_buffer_finish(struct vmw_private *dev_priv,
struct drm_file *file_priv,
struct vmw_dma_buffer *buf,
struct vmw_fence_obj **out_fence,
struct drm_vmw_fence_rep __user *
user_fence_rep);
int vmw_kms_helper_resource_prepare(struct vmw_resource *res,
bool interruptible);
void vmw_kms_helper_resource_revert(struct vmw_resource *res);
void vmw_kms_helper_resource_finish(struct vmw_resource *res,
struct vmw_fence_obj **out_fence);
/*
* Legacy display unit functions - vmwgfx_ldu.c