mirrors/linux
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git synced 2026-04-11 11:53:47 -04:00
Code Issues Packages Projects Releases Wiki Activity

drm/i915/dsb: Provide intel_dsb_head() and intel_dsb_size()

Browse Source 
The upcoming flip queue implementation will need to know the
DSB buffer head and size. Expose those outside intel_dsb.c.

Reviewed-by: Uma Shankar <uma.shankar@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250612145018.8735-3-ville.syrjala@linux.intel.com
This commit is contained in:
Ville Syrjälä
2025-06-12 17:50:14 +03:00
parent ed9434c6b4
commit 7e151f53fd
2 changed files with 9 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

9
drivers/gpu/drm/i915/display/intel_dsb.c
View File

@@ -241,14 +241,19 @@ static bool is_dsb_busy(struct intel_display *display, enum pipe pipe,
return intel_de_read_fw(display, DSB_CTRL(pipe, dsb_id)) & DSB_STATUS_BUSY;
}
static unsigned int intel_dsb_head(struct intel_dsb *dsb)
unsigned int intel_dsb_size(struct intel_dsb *dsb)
{
return dsb->free_pos * 4;
}
unsigned int intel_dsb_head(struct intel_dsb *dsb)
{
return intel_dsb_buffer_ggtt_offset(&dsb->dsb_buf);
}
static unsigned int intel_dsb_tail(struct intel_dsb *dsb)
{
return intel_dsb_buffer_ggtt_offset(&dsb->dsb_buf) + dsb->free_pos * 4;
return intel_dsb_buffer_ggtt_offset(&dsb->dsb_buf) + intel_dsb_size(dsb);
}
static void intel_dsb_ins_align(struct intel_dsb *dsb)

2
drivers/gpu/drm/i915/display/intel_dsb.h
View File

@@ -26,6 +26,8 @@ enum intel_dsb_id {
I915_MAX_DSBS,
};
unsigned int intel_dsb_size(struct intel_dsb *dsb);
unsigned int intel_dsb_head(struct intel_dsb *dsb);
struct intel_dsb *intel_dsb_prepare(struct intel_atomic_state *state,
struct intel_crtc *crtc,
enum intel_dsb_id dsb_id,