[PATCH v2 3/9] drm/i915: Introduce the plane->min_alignment() vfunc
Ville Syrjala
ville.syrjala at linux.intel.com
Wed Jun 12 20:47:06 UTC 2024
From: Ville Syrjälä <ville.syrjala at linux.intel.com>
Different hardware generations have different scanout alignment
requirements. Introduce a new vfunc that will allow us to
make that distinction without horrible if-ladders.
For now we directly plug in the existing intel_surf_alignment()
and intel_cursor_alignment() functions.
For fbdev we (temporarily) introduce intel_fbdev_min_alignment()
that simply queries the alignment from the primary plane of
the first crtc.
TODO: someone will need to fix xe's alignment handling
Reviewed-by: Imre Deak <imre.deak at intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala at linux.intel.com>
---
drivers/gpu/drm/i915/display/i9xx_plane.c | 8 ++--
drivers/gpu/drm/i915/display/intel_cursor.c | 2 +
.../drm/i915/display/intel_display_types.h | 3 ++
drivers/gpu/drm/i915/display/intel_fb.c | 22 +++++-----
drivers/gpu/drm/i915/display/intel_fb.h | 7 +++-
drivers/gpu/drm/i915/display/intel_fb_pin.c | 40 ++++++++++++++-----
drivers/gpu/drm/i915/display/intel_fb_pin.h | 3 +-
drivers/gpu/drm/i915/display/intel_fbdev.c | 21 +++++++++-
drivers/gpu/drm/i915/display/intel_sprite.c | 2 +
.../drm/i915/display/skl_universal_plane.c | 11 +++--
drivers/gpu/drm/xe/display/xe_fb_pin.c | 3 +-
drivers/gpu/drm/xe/display/xe_plane_initial.c | 4 +-
12 files changed, 89 insertions(+), 37 deletions(-)
diff --git a/drivers/gpu/drm/i915/display/i9xx_plane.c b/drivers/gpu/drm/i915/display/i9xx_plane.c
index 864d94406894..53b18efaa88c 100644
--- a/drivers/gpu/drm/i915/display/i9xx_plane.c
+++ b/drivers/gpu/drm/i915/display/i9xx_plane.c
@@ -225,8 +225,8 @@ static u32 i9xx_plane_ctl(const struct intel_crtc_state *crtc_state,
int i9xx_check_plane_surface(struct intel_plane_state *plane_state)
{
- struct drm_i915_private *dev_priv =
- to_i915(plane_state->uapi.plane->dev);
+ struct intel_plane *plane = to_intel_plane(plane_state->uapi.plane);
+ struct drm_i915_private *dev_priv = to_i915(plane->base.dev);
const struct drm_framebuffer *fb = plane_state->hw.fb;
int src_x, src_y, src_w;
u32 offset;
@@ -267,7 +267,7 @@ int i9xx_check_plane_surface(struct intel_plane_state *plane_state)
* despite them not using the linear offset anymore.
*/
if (DISPLAY_VER(dev_priv) >= 4 && fb->modifier == I915_FORMAT_MOD_X_TILED) {
- unsigned int alignment = intel_surf_alignment(fb, 0);
+ unsigned int alignment = plane->min_alignment(plane, fb, 0);
int cpp = fb->format->cpp[0];
while ((src_x + src_w) * cpp > plane_state->view.color_plane[0].mapping_stride) {
@@ -869,6 +869,8 @@ intel_primary_plane_create(struct drm_i915_private *dev_priv, enum pipe pipe)
plane->max_stride = ilk_primary_max_stride;
}
+ plane->min_alignment = intel_surf_alignment;
+
if (IS_I830(dev_priv) || IS_I845G(dev_priv)) {
plane->update_arm = i830_plane_update_arm;
} else {
diff --git a/drivers/gpu/drm/i915/display/intel_cursor.c b/drivers/gpu/drm/i915/display/intel_cursor.c
index 7f7fc710350c..5f8c23296b61 100644
--- a/drivers/gpu/drm/i915/display/intel_cursor.c
+++ b/drivers/gpu/drm/i915/display/intel_cursor.c
@@ -954,6 +954,8 @@ intel_cursor_plane_create(struct drm_i915_private *dev_priv,
cursor->check_plane = i9xx_check_cursor;
}
+ cursor->min_alignment = intel_cursor_alignment;
+
cursor->cursor.base = ~0;
cursor->cursor.cntl = ~0;
diff --git a/drivers/gpu/drm/i915/display/intel_display_types.h b/drivers/gpu/drm/i915/display/intel_display_types.h
index 4fa785fd664e..0c165572fbd0 100644
--- a/drivers/gpu/drm/i915/display/intel_display_types.h
+++ b/drivers/gpu/drm/i915/display/intel_display_types.h
@@ -1560,6 +1560,9 @@ struct intel_plane {
int (*max_height)(const struct drm_framebuffer *fb,
int color_plane,
unsigned int rotation);
+ unsigned int (*min_alignment)(struct intel_plane *plane,
+ const struct drm_framebuffer *fb,
+ int color_plane);
unsigned int (*max_stride)(struct intel_plane *plane,
u32 pixel_format, u64 modifier,
unsigned int rotation);
diff --git a/drivers/gpu/drm/i915/display/intel_fb.c b/drivers/gpu/drm/i915/display/intel_fb.c
index 8069abf91c5e..b3a48754a417 100644
--- a/drivers/gpu/drm/i915/display/intel_fb.c
+++ b/drivers/gpu/drm/i915/display/intel_fb.c
@@ -776,8 +776,12 @@ bool intel_fb_uses_dpt(const struct drm_framebuffer *fb)
intel_fb_modifier_uses_dpt(to_i915(fb->dev), fb->modifier);
}
-unsigned int intel_cursor_alignment(const struct drm_i915_private *i915)
+unsigned int intel_cursor_alignment(struct intel_plane *plane,
+ const struct drm_framebuffer *fb,
+ int color_plane)
{
+ struct drm_i915_private *i915 = to_i915(plane->base.dev);
+
if (IS_I830(i915))
return 16 * 1024;
else if (IS_I85X(i915))
@@ -801,10 +805,11 @@ static unsigned int intel_linear_alignment(const struct drm_i915_private *dev_pr
return 0;
}
-unsigned int intel_surf_alignment(const struct drm_framebuffer *fb,
+unsigned int intel_surf_alignment(struct intel_plane *plane,
+ const struct drm_framebuffer *fb,
int color_plane)
{
- struct drm_i915_private *dev_priv = to_i915(fb->dev);
+ struct drm_i915_private *dev_priv = to_i915(plane->base.dev);
if (intel_fb_uses_dpt(fb)) {
/* AUX_DIST needs only 4K alignment */
@@ -1099,17 +1104,12 @@ u32 intel_plane_compute_aligned_offset(int *x, int *y,
const struct intel_plane_state *state,
int color_plane)
{
- struct intel_plane *intel_plane = to_intel_plane(state->uapi.plane);
- struct drm_i915_private *i915 = to_i915(intel_plane->base.dev);
+ struct intel_plane *plane = to_intel_plane(state->uapi.plane);
+ struct drm_i915_private *i915 = to_i915(plane->base.dev);
const struct drm_framebuffer *fb = state->hw.fb;
unsigned int rotation = state->hw.rotation;
unsigned int pitch = state->view.color_plane[color_plane].mapping_stride;
- unsigned int alignment;
-
- if (intel_plane->id == PLANE_CURSOR)
- alignment = intel_cursor_alignment(i915);
- else
- alignment = intel_surf_alignment(fb, color_plane);
+ unsigned int alignment = plane->min_alignment(plane, fb, color_plane);
return intel_compute_aligned_offset(i915, x, y, fb, color_plane,
pitch, rotation, alignment);
diff --git a/drivers/gpu/drm/i915/display/intel_fb.h b/drivers/gpu/drm/i915/display/intel_fb.h
index 23db6628f53e..86c01a3ce81e 100644
--- a/drivers/gpu/drm/i915/display/intel_fb.h
+++ b/drivers/gpu/drm/i915/display/intel_fb.h
@@ -60,8 +60,11 @@ unsigned int intel_tile_height(const struct drm_framebuffer *fb, int color_plane
unsigned int intel_tile_row_size(const struct drm_framebuffer *fb, int color_plane);
unsigned int intel_fb_align_height(const struct drm_framebuffer *fb,
int color_plane, unsigned int height);
-unsigned int intel_cursor_alignment(const struct drm_i915_private *i915);
-unsigned int intel_surf_alignment(const struct drm_framebuffer *fb,
+unsigned int intel_cursor_alignment(struct intel_plane *plane,
+ const struct drm_framebuffer *fb,
+ int color_plane);
+unsigned int intel_surf_alignment(struct intel_plane *plane,
+ const struct drm_framebuffer *fb,
int color_plane);
void intel_fb_plane_get_subsampling(int *hsub, int *vsub,
diff --git a/drivers/gpu/drm/i915/display/intel_fb_pin.c b/drivers/gpu/drm/i915/display/intel_fb_pin.c
index 1acc11fa19f4..9b0f1ea41b70 100644
--- a/drivers/gpu/drm/i915/display/intel_fb_pin.c
+++ b/drivers/gpu/drm/i915/display/intel_fb_pin.c
@@ -103,8 +103,9 @@ intel_fb_pin_to_dpt(const struct drm_framebuffer *fb,
struct i915_vma *
intel_fb_pin_to_ggtt(const struct drm_framebuffer *fb,
- bool phys_cursor,
const struct i915_gtt_view *view,
+ unsigned int alignment,
+ unsigned int phys_alignment,
bool uses_fence,
unsigned long *out_flags)
{
@@ -113,7 +114,6 @@ intel_fb_pin_to_ggtt(const struct drm_framebuffer *fb,
struct drm_i915_gem_object *obj = intel_fb_obj(fb);
intel_wakeref_t wakeref;
struct i915_gem_ww_ctx ww;
- unsigned int alignment;
struct i915_vma *vma;
unsigned int pinctl;
int ret;
@@ -121,10 +121,6 @@ intel_fb_pin_to_ggtt(const struct drm_framebuffer *fb,
if (drm_WARN_ON(dev, !i915_gem_object_is_framebuffer(obj)))
return ERR_PTR(-EINVAL);
- if (phys_cursor)
- alignment = intel_cursor_alignment(dev_priv);
- else
- alignment = intel_surf_alignment(fb, 0);
if (drm_WARN_ON(dev, alignment && !is_power_of_2(alignment)))
return ERR_PTR(-EINVAL);
@@ -162,8 +158,8 @@ intel_fb_pin_to_ggtt(const struct drm_framebuffer *fb,
i915_gem_ww_ctx_init(&ww, true);
retry:
ret = i915_gem_object_lock(obj, &ww);
- if (!ret && phys_cursor)
- ret = i915_gem_object_attach_phys(obj, alignment);
+ if (!ret && phys_alignment)
+ ret = i915_gem_object_attach_phys(obj, phys_alignment);
else if (!ret && HAS_LMEM(dev_priv))
ret = i915_gem_object_migrate(obj, &ww, INTEL_REGION_LMEM_0);
if (!ret)
@@ -234,6 +230,27 @@ void intel_fb_unpin_vma(struct i915_vma *vma, unsigned long flags)
i915_vma_put(vma);
}
+static unsigned int
+intel_plane_fb_min_alignment(const struct intel_plane_state *plane_state)
+{
+ struct intel_plane *plane = to_intel_plane(plane_state->uapi.plane);
+ const struct drm_framebuffer *fb = plane_state->hw.fb;
+
+ return plane->min_alignment(plane, fb, 0);
+}
+
+static unsigned int
+intel_plane_fb_min_phys_alignment(const struct intel_plane_state *plane_state)
+{
+ struct intel_plane *plane = to_intel_plane(plane_state->uapi.plane);
+ const struct drm_framebuffer *fb = plane_state->hw.fb;
+
+ if (!intel_plane_needs_physical(plane))
+ return 0;
+
+ return plane->min_alignment(plane, fb, 0);
+}
+
int intel_plane_pin_fb(struct intel_plane_state *plane_state)
{
struct intel_plane *plane = to_intel_plane(plane_state->uapi.plane);
@@ -242,8 +259,9 @@ int intel_plane_pin_fb(struct intel_plane_state *plane_state)
struct i915_vma *vma;
if (!intel_fb_uses_dpt(&fb->base)) {
- vma = intel_fb_pin_to_ggtt(&fb->base, intel_plane_needs_physical(plane),
- &plane_state->view.gtt,
+ vma = intel_fb_pin_to_ggtt(&fb->base, &plane_state->view.gtt,
+ intel_plane_fb_min_alignment(plane_state),
+ intel_plane_fb_min_phys_alignment(plane_state),
intel_plane_uses_fence(plane_state),
&plane_state->flags);
if (IS_ERR(vma))
@@ -261,7 +279,7 @@ int intel_plane_pin_fb(struct intel_plane_state *plane_state)
plane_state->phys_dma_addr =
i915_gem_object_get_dma_address(intel_fb_obj(&fb->base), 0);
} else {
- unsigned int alignment = intel_surf_alignment(&fb->base, 0);
+ unsigned int alignment = intel_plane_fb_min_alignment(plane_state);
vma = intel_dpt_pin_to_ggtt(fb->dpt_vm, alignment / 512);
if (IS_ERR(vma))
diff --git a/drivers/gpu/drm/i915/display/intel_fb_pin.h b/drivers/gpu/drm/i915/display/intel_fb_pin.h
index 3f8245edcd15..ac0319b53af0 100644
--- a/drivers/gpu/drm/i915/display/intel_fb_pin.h
+++ b/drivers/gpu/drm/i915/display/intel_fb_pin.h
@@ -15,8 +15,9 @@ struct i915_gtt_view;
struct i915_vma *
intel_fb_pin_to_ggtt(const struct drm_framebuffer *fb,
- bool phys_cursor,
const struct i915_gtt_view *view,
+ unsigned int alignment,
+ unsigned int phys_alignment,
bool uses_fence,
unsigned long *out_flags);
diff --git a/drivers/gpu/drm/i915/display/intel_fbdev.c b/drivers/gpu/drm/i915/display/intel_fbdev.c
index 37ae176bfeb0..6e5f88f20482 100644
--- a/drivers/gpu/drm/i915/display/intel_fbdev.c
+++ b/drivers/gpu/drm/i915/display/intel_fbdev.c
@@ -47,6 +47,7 @@
#include "gem/i915_gem_object.h"
#include "i915_drv.h"
+#include "intel_crtc.h"
#include "intel_display_types.h"
#include "intel_fb.h"
#include "intel_fb_pin.h"
@@ -172,6 +173,21 @@ static const struct fb_ops intelfb_ops = {
__diag_pop();
+static unsigned int intel_fbdev_min_alignment(const struct drm_framebuffer *fb)
+{
+ struct drm_i915_private *i915 = to_i915(fb->dev);
+ struct intel_plane *plane;
+ struct intel_crtc *crtc;
+
+ crtc = intel_first_crtc(i915);
+ if (!crtc)
+ return 0;
+
+ plane = to_intel_plane(crtc->base.primary);
+
+ return plane->min_alignment(plane, fb, 0);
+}
+
static int intelfb_create(struct drm_fb_helper *helper,
struct drm_fb_helper_surface_size *sizes)
{
@@ -228,8 +244,9 @@ static int intelfb_create(struct drm_fb_helper *helper,
* This also validates that any existing fb inherited from the
* BIOS is suitable for own access.
*/
- vma = intel_fb_pin_to_ggtt(&fb->base, false,
- &view, false, &flags);
+ vma = intel_fb_pin_to_ggtt(&fb->base, &view,
+ intel_fbdev_min_alignment(&fb->base), 0,
+ false, &flags);
if (IS_ERR(vma)) {
ret = PTR_ERR(vma);
goto out_unlock;
diff --git a/drivers/gpu/drm/i915/display/intel_sprite.c b/drivers/gpu/drm/i915/display/intel_sprite.c
index e1c907f601da..6f9ae83b095c 100644
--- a/drivers/gpu/drm/i915/display/intel_sprite.c
+++ b/drivers/gpu/drm/i915/display/intel_sprite.c
@@ -1622,6 +1622,8 @@ intel_sprite_plane_create(struct drm_i915_private *dev_priv,
}
}
+ plane->min_alignment = intel_surf_alignment;
+
if (IS_CHERRYVIEW(dev_priv) && pipe == PIPE_B) {
supported_rotations =
DRM_MODE_ROTATE_0 | DRM_MODE_ROTATE_180 |
diff --git a/drivers/gpu/drm/i915/display/skl_universal_plane.c b/drivers/gpu/drm/i915/display/skl_universal_plane.c
index 8a66b1002a74..7e4417459c41 100644
--- a/drivers/gpu/drm/i915/display/skl_universal_plane.c
+++ b/drivers/gpu/drm/i915/display/skl_universal_plane.c
@@ -1680,11 +1680,12 @@ skl_check_main_ccs_coordinates(struct intel_plane_state *plane_state,
int main_x, int main_y, u32 main_offset,
int ccs_plane)
{
+ struct intel_plane *plane = to_intel_plane(plane_state->uapi.plane);
const struct drm_framebuffer *fb = plane_state->hw.fb;
int aux_x = plane_state->view.color_plane[ccs_plane].x;
int aux_y = plane_state->view.color_plane[ccs_plane].y;
u32 aux_offset = plane_state->view.color_plane[ccs_plane].offset;
- unsigned int alignment = intel_surf_alignment(fb, ccs_plane);
+ unsigned int alignment = plane->min_alignment(plane, fb, ccs_plane);
int hsub;
int vsub;
@@ -1728,7 +1729,7 @@ int skl_calc_main_surface_offset(const struct intel_plane_state *plane_state,
const struct drm_framebuffer *fb = plane_state->hw.fb;
int aux_plane = skl_main_to_aux_plane(fb, 0);
u32 aux_offset = plane_state->view.color_plane[aux_plane].offset;
- unsigned int alignment = intel_surf_alignment(fb, 0);
+ unsigned int alignment = plane->min_alignment(plane, fb, 0);
int w = drm_rect_width(&plane_state->uapi.src) >> 16;
intel_add_fb_offsets(x, y, plane_state, 0);
@@ -1784,7 +1785,7 @@ static int skl_check_main_surface(struct intel_plane_state *plane_state)
int min_width = intel_plane_min_width(plane, fb, 0, rotation);
int max_width = intel_plane_max_width(plane, fb, 0, rotation);
int max_height = intel_plane_max_height(plane, fb, 0, rotation);
- unsigned int alignment = intel_surf_alignment(fb, 0);
+ unsigned int alignment = plane->min_alignment(plane, fb, 0);
int aux_plane = skl_main_to_aux_plane(fb, 0);
u32 offset;
int ret;
@@ -1873,7 +1874,7 @@ static int skl_check_nv12_aux_surface(struct intel_plane_state *plane_state)
if (ccs_plane) {
u32 aux_offset = plane_state->view.color_plane[ccs_plane].offset;
- unsigned int alignment = intel_surf_alignment(fb, uv_plane);
+ unsigned int alignment = plane->min_alignment(plane, fb, uv_plane);
if (offset > aux_offset)
offset = intel_plane_adjust_aligned_offset(&x, &y,
@@ -2430,6 +2431,8 @@ skl_universal_plane_create(struct drm_i915_private *dev_priv,
else
plane->max_stride = skl_plane_max_stride;
+ plane->min_alignment = intel_surf_alignment;
+
if (DISPLAY_VER(dev_priv) >= 11) {
plane->update_noarm = icl_plane_update_noarm;
plane->update_arm = icl_plane_update_arm;
diff --git a/drivers/gpu/drm/xe/display/xe_fb_pin.c b/drivers/gpu/drm/xe/display/xe_fb_pin.c
index a2f417209124..a807f869d39f 100644
--- a/drivers/gpu/drm/xe/display/xe_fb_pin.c
+++ b/drivers/gpu/drm/xe/display/xe_fb_pin.c
@@ -334,8 +334,9 @@ static void __xe_unpin_fb_vma(struct i915_vma *vma)
struct i915_vma *
intel_fb_pin_to_ggtt(const struct drm_framebuffer *fb,
- bool phys_cursor,
const struct i915_gtt_view *view,
+ unsigned int alignment,
+ unsigned int phys_alignment,
bool uses_fence,
unsigned long *out_flags)
{
diff --git a/drivers/gpu/drm/xe/display/xe_plane_initial.c b/drivers/gpu/drm/xe/display/xe_plane_initial.c
index e135b20962d9..5eccd6abb3ef 100644
--- a/drivers/gpu/drm/xe/display/xe_plane_initial.c
+++ b/drivers/gpu/drm/xe/display/xe_plane_initial.c
@@ -210,8 +210,8 @@ intel_find_initial_plane_obj(struct intel_crtc *crtc,
intel_fb_fill_view(to_intel_framebuffer(fb),
plane_state->uapi.rotation, &plane_state->view);
- vma = intel_fb_pin_to_ggtt(fb, false, &plane_state->view.gtt,
- false, &plane_state->flags);
+ vma = intel_fb_pin_to_ggtt(fb, &plane_state->view.gtt,
+ 0, 0, false, &plane_state->flags);
if (IS_ERR(vma))
goto nofb;
--
2.44.2
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