mirrors/linux
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git synced 2026-04-25 00:11:05 -04:00
Code Issues Packages Projects Releases Wiki Activity

drm/i915/dsb: Introduce intel_dsb_finish()

Browse Source 
Introduce a function to emits whatever commands we need
at the end of the DSB command buffer. For the moment we
only do the tail cacheline alignment there, but eventually
we might want to eg. emit an interrupt.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230118163040.29808-5-ville.syrjala@linux.intel.com
Reviewed-by: Animesh Manna <animesh.manna@intel.com>
This commit is contained in:
Ville Syrjälä
2023-01-18 18:30:31 +02:00
parent 4b284831c6
commit 36e491f8f6
3 changed files with 9 additions and 4 deletions
Download Patch File Download Diff File Expand all files Collapse all files

1
drivers/gpu/drm/i915/display/intel_color.c
View File

@@ -1257,6 +1257,7 @@ static void icl_load_luts(const struct intel_crtc_state *crtc_state)
}
if (crtc_state->dsb) {
intel_dsb_finish(crtc_state->dsb);
intel_dsb_commit(crtc_state->dsb);
intel_dsb_wait(crtc_state->dsb);
}

11
drivers/gpu/drm/i915/display/intel_dsb.c
View File

@@ -199,7 +199,7 @@ void intel_dsb_reg_write(struct intel_dsb *dsb,
}
}
static u32 intel_dsb_align_tail(struct intel_dsb *dsb)
static void intel_dsb_align_tail(struct intel_dsb *dsb)
{
u32 aligned_tail, tail;
@@ -211,8 +211,11 @@ static u32 intel_dsb_align_tail(struct intel_dsb *dsb)
aligned_tail - tail);
dsb->free_pos = aligned_tail / 4;
}
return aligned_tail;
void intel_dsb_finish(struct intel_dsb *dsb)
{
intel_dsb_align_tail(dsb);
}
/**
@@ -228,8 +231,8 @@ void intel_dsb_commit(struct intel_dsb *dsb)
enum pipe pipe = crtc->pipe;
u32 tail;
tail = intel_dsb_align_tail(dsb);
if (tail == 0)
tail = dsb->free_pos * 4;
if (drm_WARN_ON(&dev_priv->drm, !IS_ALIGNED(tail, CACHELINE_BYTES)))
return;
if (is_dsb_busy(dev_priv, pipe, dsb->id)) {

1
drivers/gpu/drm/i915/display/intel_dsb.h
View File

@@ -15,6 +15,7 @@ struct intel_dsb;
struct intel_dsb *intel_dsb_prepare(struct intel_crtc *crtc,
unsigned int max_cmds);
void intel_dsb_finish(struct intel_dsb *dsb);
void intel_dsb_cleanup(struct intel_dsb *dsb);
void intel_dsb_reg_write(struct intel_dsb *dsb,
i915_reg_t reg, u32 val);