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drm/i915: Extract i845_cursor_ctl() and i9xx_cursor_ctl()

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Pull the code to calculate the cursor control register value into
separate functions. Allows us to pre-compute them in the future.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170317211808.14693-8-ville.syrjala@linux.intel.com
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
This commit is contained in:
Ville Syrjälä 2017-03-17 23:18:01 +02:00
parent 0a37514795
commit 292889e1ff
1 changed files with 72 additions and 47 deletions
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119
drivers/gpu/drm/i915/intel_display.c
View file

@ -9179,7 +9179,33 @@ out:
return active;
}
static u32 i845_cursor_ctl(const struct intel_crtc_state *crtc_state,
const struct intel_plane_state *plane_state)
{
unsigned int width = plane_state->base.crtc_w;
unsigned int stride = roundup_pow_of_two(width) * 4;
switch (stride) {
default:
WARN_ONCE(1, "Invalid cursor width/stride, width=%u, stride=%u\n",
width, stride);
stride = 256;
/* fallthrough */
case 256:
case 512:
case 1024:
case 2048:
break;
}
return CURSOR_ENABLE |
CURSOR_GAMMA_ENABLE |
CURSOR_FORMAT_ARGB |
CURSOR_STRIDE(stride);
}
static void i845_update_cursor(struct drm_crtc *crtc, u32 base,
const struct intel_crtc_state *crtc_state,
const struct intel_plane_state *plane_state)
{
struct drm_device *dev = crtc->dev;
@ -9190,26 +9216,8 @@ static void i845_update_cursor(struct drm_crtc *crtc, u32 base,
if (plane_state && plane_state->base.visible) {
unsigned int width = plane_state->base.crtc_w;
unsigned int height = plane_state->base.crtc_h;
unsigned int stride = roundup_pow_of_two(width) * 4;
switch (stride) {
default:
WARN_ONCE(1, "Invalid cursor width/stride, width=%u, stride=%u\n",
width, stride);
stride = 256;
/* fallthrough */
case 256:
case 512:
case 1024:
case 2048:
break;
}
cntl |= CURSOR_ENABLE |
CURSOR_GAMMA_ENABLE |
CURSOR_FORMAT_ARGB |
CURSOR_STRIDE(stride);
cntl = i845_cursor_ctl(crtc_state, plane_state);
size = (height << 12) | width;
}
@ -9242,7 +9250,45 @@ static void i845_update_cursor(struct drm_crtc *crtc, u32 base,
}
}
static u32 i9xx_cursor_ctl(const struct intel_crtc_state *crtc_state,
const struct intel_plane_state *plane_state)
{
struct drm_i915_private *dev_priv =
to_i915(plane_state->base.plane->dev);
struct intel_crtc *crtc = to_intel_crtc(crtc_state->base.crtc);
enum pipe pipe = crtc->pipe;
u32 cntl;
cntl = MCURSOR_GAMMA_ENABLE;
if (HAS_DDI(dev_priv))
cntl |= CURSOR_PIPE_CSC_ENABLE;
cntl |= pipe << 28; /* Connect to correct pipe */
switch (plane_state->base.crtc_w) {
case 64:
cntl |= CURSOR_MODE_64_ARGB_AX;
break;
case 128:
cntl |= CURSOR_MODE_128_ARGB_AX;
break;
case 256:
cntl |= CURSOR_MODE_256_ARGB_AX;
break;
default:
MISSING_CASE(plane_state->base.crtc_w);
return 0;
}
if (plane_state->base.rotation & DRM_ROTATE_180)
cntl |= CURSOR_ROTATE_180;
return cntl;
}
static void i9xx_update_cursor(struct drm_crtc *crtc, u32 base,
const struct intel_crtc_state *crtc_state,
const struct intel_plane_state *plane_state)
{
struct drm_device *dev = crtc->dev;
@ -9251,30 +9297,8 @@ static void i9xx_update_cursor(struct drm_crtc *crtc, u32 base,
int pipe = intel_crtc->pipe;
uint32_t cntl = 0;
if (plane_state && plane_state->base.visible) {
cntl = MCURSOR_GAMMA_ENABLE;
switch (plane_state->base.crtc_w) {
case 64:
cntl |= CURSOR_MODE_64_ARGB_AX;
break;
case 128:
cntl |= CURSOR_MODE_128_ARGB_AX;
break;
case 256:
cntl |= CURSOR_MODE_256_ARGB_AX;
break;
default:
MISSING_CASE(plane_state->base.crtc_w);
return;
}
cntl |= pipe << 28; /* Connect to correct pipe */
if (HAS_DDI(dev_priv))
cntl |= CURSOR_PIPE_CSC_ENABLE;
if (plane_state->base.rotation & DRM_ROTATE_180)
cntl |= CURSOR_ROTATE_180;
}
if (plane_state && plane_state->base.visible)
cntl = i9xx_cursor_ctl(crtc_state, plane_state);
if (intel_crtc->cursor_cntl != cntl) {
I915_WRITE_FW(CURCNTR(pipe), cntl);
@ -9291,6 +9315,7 @@ static void i9xx_update_cursor(struct drm_crtc *crtc, u32 base,
/* If no-part of the cursor is visible on the framebuffer, then the GPU may hang... */
static void intel_crtc_update_cursor(struct drm_crtc *crtc,
const struct intel_crtc_state *crtc_state,
const struct intel_plane_state *plane_state)
{
struct drm_device *dev = crtc->dev;
@ -9330,9 +9355,9 @@ static void intel_crtc_update_cursor(struct drm_crtc *crtc,
I915_WRITE_FW(CURPOS(pipe), pos);
if (IS_I845G(dev_priv) || IS_I865G(dev_priv))
i845_update_cursor(crtc, base, plane_state);
i845_update_cursor(crtc, base, crtc_state, plane_state);
else
i9xx_update_cursor(crtc, base, plane_state);
i9xx_update_cursor(crtc, base, crtc_state, plane_state);
spin_unlock_irqrestore(&dev_priv->uncore.lock, irqflags);
}
@ -13762,7 +13787,7 @@ intel_disable_cursor_plane(struct drm_plane *plane,
struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
intel_crtc->cursor_addr = 0;
intel_crtc_update_cursor(crtc, NULL);
intel_crtc_update_cursor(crtc, NULL, NULL);
}
static void
@ -13784,7 +13809,7 @@ intel_update_cursor_plane(struct drm_plane *plane,
addr = obj->phys_handle->busaddr;
intel_crtc->cursor_addr = addr;
intel_crtc_update_cursor(crtc, state);
intel_crtc_update_cursor(crtc, crtc_state, state);
}
static struct intel_plane *