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drm/i915: Add .max_stride() plane hook

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Each plane may have different stride limitations. Let's add a new
plane function to retutn the maximum stride for each plane. There's
going to be some use for this outside the .atomic_check() stuff hence
the separate hook.

v2: Fix ilk+ x-tiled max stride to be 32k (José)

Reviewed-by: José Roberto de Souza <jose.souza@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180907152413.15761-3-ville.syrjala@linux.intel.com
This commit is contained in:
Ville Syrjälä 2018-09-07 18:24:02 +03:00
parent 6d19a44cce
commit ddd5713d6e
3 changed files with 90 additions and 2 deletions
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48
drivers/gpu/drm/i915/intel_display.c
View File

@ -3213,6 +3213,33 @@ int skl_check_plane_surface(const struct intel_crtc_state *crtc_state,
return 0;
}
unsigned int
i9xx_plane_max_stride(struct intel_plane *plane,
u32 pixel_format, u64 modifier,
unsigned int rotation)
{
struct drm_i915_private *dev_priv = to_i915(plane->base.dev);
if (!HAS_GMCH_DISPLAY(dev_priv)) {
return 32*1024;
} else if (INTEL_GEN(dev_priv) >= 4) {
if (modifier == I915_FORMAT_MOD_X_TILED)
return 16*1024;
else
return 32*1024;
} else if (INTEL_GEN(dev_priv) >= 3) {
if (modifier == I915_FORMAT_MOD_X_TILED)
return 8*1024;
else
return 16*1024;
} else {
if (plane->i9xx_plane == PLANE_C)
return 4*1024;
else
return 8*1024;
}
}
static u32 i9xx_plane_ctl(const struct intel_crtc_state *crtc_state,
const struct intel_plane_state *plane_state)
{
@ -9681,6 +9708,14 @@ static int intel_check_cursor(struct intel_crtc_state *crtc_state,
return 0;
}
static unsigned int
i845_cursor_max_stride(struct intel_plane *plane,
u32 pixel_format, u64 modifier,
unsigned int rotation)
{
return 2048;
}
static u32 i845_cursor_ctl(const struct intel_crtc_state *crtc_state,
const struct intel_plane_state *plane_state)
{
@ -9813,6 +9848,14 @@ static bool i845_cursor_get_hw_state(struct intel_plane *plane,
return ret;
}
static unsigned int
i9xx_cursor_max_stride(struct intel_plane *plane,
u32 pixel_format, u64 modifier,
unsigned int rotation)
{
return plane->base.dev->mode_config.cursor_width * 4;
}
static u32 i9xx_cursor_ctl(const struct intel_crtc_state *crtc_state,
const struct intel_plane_state *plane_state)
{
@ -13727,6 +13770,7 @@ intel_primary_plane_create(struct drm_i915_private *dev_priv, enum pipe pipe)
else
modifiers = skl_format_modifiers_noccs;
primary->max_stride = skl_plane_max_stride;
primary->update_plane = skl_update_plane;
primary->disable_plane = skl_disable_plane;
primary->get_hw_state = skl_plane_get_hw_state;
@ -13737,6 +13781,7 @@ intel_primary_plane_create(struct drm_i915_private *dev_priv, enum pipe pipe)
num_formats = ARRAY_SIZE(i965_primary_formats);
modifiers = i9xx_format_modifiers;
primary->max_stride = i9xx_plane_max_stride;
primary->update_plane = i9xx_update_plane;
primary->disable_plane = i9xx_disable_plane;
primary->get_hw_state = i9xx_plane_get_hw_state;
@ -13747,6 +13792,7 @@ intel_primary_plane_create(struct drm_i915_private *dev_priv, enum pipe pipe)
num_formats = ARRAY_SIZE(i8xx_primary_formats);
modifiers = i9xx_format_modifiers;
primary->max_stride = i9xx_plane_max_stride;
primary->update_plane = i9xx_update_plane;
primary->disable_plane = i9xx_disable_plane;
primary->get_hw_state = i9xx_plane_get_hw_state;
@ -13854,11 +13900,13 @@ intel_cursor_plane_create(struct drm_i915_private *dev_priv,
cursor->frontbuffer_bit = INTEL_FRONTBUFFER(pipe, cursor->id);
if (IS_I845G(dev_priv) || IS_I865G(dev_priv)) {
cursor->max_stride = i845_cursor_max_stride;
cursor->update_plane = i845_update_cursor;
cursor->disable_plane = i845_disable_cursor;
cursor->get_hw_state = i845_cursor_get_hw_state;
cursor->check_plane = i845_check_cursor;
} else {
cursor->max_stride = i9xx_cursor_max_stride;
cursor->update_plane = i9xx_update_cursor;
cursor->disable_plane = i9xx_disable_cursor;
cursor->get_hw_state = i9xx_cursor_get_hw_state;

10
drivers/gpu/drm/i915/intel_drv.h
View File

@ -965,6 +965,9 @@ struct intel_plane {
* the intel_plane_state structure and accessed via plane_state.
*/
unsigned int (*max_stride)(struct intel_plane *plane,
u32 pixel_format, u64 modifier,
unsigned int rotation);
void (*update_plane)(struct intel_plane *plane,
const struct intel_crtc_state *crtc_state,
const struct intel_plane_state *plane_state);
@ -1660,6 +1663,9 @@ int skl_check_plane_surface(const struct intel_crtc_state *crtc_state,
struct intel_plane_state *plane_state);
int i9xx_check_plane_surface(struct intel_plane_state *plane_state);
int skl_format_to_fourcc(int format, bool rgb_order, bool alpha);
unsigned int i9xx_plane_max_stride(struct intel_plane *plane,
u32 pixel_format, u64 modifier,
unsigned int rotation);
/* intel_csr.c */
void intel_csr_ucode_init(struct drm_i915_private *);
@ -2127,6 +2133,10 @@ bool skl_plane_has_ccs(struct drm_i915_private *dev_priv,
enum pipe pipe, enum plane_id plane_id);
bool skl_plane_has_planar(struct drm_i915_private *dev_priv,
enum pipe pipe, enum plane_id plane_id);
unsigned int skl_plane_max_stride(struct intel_plane *plane,
u32 pixel_format, u64 modifier,
unsigned int rotation);
/* intel_tv.c */
void intel_tv_init(struct drm_i915_private *dev_priv);

34
drivers/gpu/drm/i915/intel_sprite.c
View File

@ -230,6 +230,23 @@ void intel_pipe_update_end(struct intel_crtc_state *new_crtc_state)
#endif
}
unsigned int
skl_plane_max_stride(struct intel_plane *plane,
u32 pixel_format, u64 modifier,
unsigned int rotation)
{
int cpp = drm_format_plane_cpp(pixel_format, 0);
/*
* "The stride in bytes must not exceed the
* of the size of 8K pixels and 32K bytes."
*/
if (drm_rotation_90_or_270(rotation))
return min(8192, 32768 / cpp);
else
return min(8192 * cpp, 32768);
}
void
skl_update_plane(struct intel_plane *plane,
const struct intel_crtc_state *crtc_state,
@ -800,6 +817,14 @@ ivb_plane_get_hw_state(struct intel_plane *plane,
return ret;
}
static unsigned int
g4x_sprite_max_stride(struct intel_plane *plane,
u32 pixel_format, u64 modifier,
unsigned int rotation)
{
return 16384;
}
static u32 g4x_sprite_ctl(const struct intel_crtc_state *crtc_state,
const struct intel_plane_state *plane_state)
{
@ -966,7 +991,6 @@ intel_check_sprite_plane(struct intel_crtc_state *crtc_state,
struct drm_i915_private *dev_priv = to_i915(plane->base.dev);
struct intel_crtc *crtc = to_intel_crtc(crtc_state->base.crtc);
struct drm_framebuffer *fb = state->base.fb;
int max_stride = INTEL_GEN(dev_priv) >= 9 ? 32768 : 16384;
int max_scale, min_scale;
bool can_scale;
int ret;
@ -984,7 +1008,9 @@ intel_check_sprite_plane(struct intel_crtc_state *crtc_state,
}
/* FIXME check all gen limits */
if (fb->width < 3 || fb->height < 3 || fb->pitches[0] > max_stride) {
if (fb->width < 3 || fb->height < 3 ||
fb->pitches[0] > plane->max_stride(plane, fb->format->format,
fb->modifier, DRM_MODE_ROTATE_0)) {
DRM_DEBUG_KMS("Unsuitable framebuffer for plane\n");
return -EINVAL;
}
@ -1529,6 +1555,7 @@ intel_sprite_plane_create(struct drm_i915_private *dev_priv,
intel_plane->has_ccs = skl_plane_has_ccs(dev_priv, pipe,
PLANE_SPRITE0 + plane);
intel_plane->max_stride = skl_plane_max_stride;
intel_plane->update_plane = skl_update_plane;
intel_plane->disable_plane = skl_disable_plane;
intel_plane->get_hw_state = skl_plane_get_hw_state;
@ -1552,6 +1579,7 @@ intel_sprite_plane_create(struct drm_i915_private *dev_priv,
intel_plane->can_scale = false;
intel_plane->max_downscale = 1;
intel_plane->max_stride = i9xx_plane_max_stride;
intel_plane->update_plane = vlv_update_plane;
intel_plane->disable_plane = vlv_disable_plane;
intel_plane->get_hw_state = vlv_plane_get_hw_state;
@ -1570,6 +1598,7 @@ intel_sprite_plane_create(struct drm_i915_private *dev_priv,
intel_plane->max_downscale = 1;
}
intel_plane->max_stride = g4x_sprite_max_stride;
intel_plane->update_plane = ivb_update_plane;
intel_plane->disable_plane = ivb_disable_plane;
intel_plane->get_hw_state = ivb_plane_get_hw_state;
@ -1583,6 +1612,7 @@ intel_sprite_plane_create(struct drm_i915_private *dev_priv,
intel_plane->can_scale = true;
intel_plane->max_downscale = 16;
intel_plane->max_stride = g4x_sprite_max_stride;
intel_plane->update_plane = g4x_update_plane;
intel_plane->disable_plane = g4x_disable_plane;
intel_plane->get_hw_state = g4x_plane_get_hw_state;