UbiquitousOS
/
OpenCloudOS-Kernel
mirror of https://gitee.com/OpenCloudOS/OpenCloudOS-Kernel.git
11
0
Fork 0
Code Issues Projects Releases Wiki Activity
OpenCloudOS-Kernel/drivers/gpu/drm/imx/ipuv3-plane.c

841 lines
23 KiB
C
Raw Blame History

// SPDX-License-Identifier: GPL-2.0+
/*
* i.MX IPUv3 DP Overlay Planes
*
* Copyright (C) 2013 Philipp Zabel, Pengutronix
*/
#include <drm/drmP.h>
#include <drm/drm_atomic.h>
#include <drm/drm_atomic_helper.h>
#include <drm/drm_fb_cma_helper.h>
#include <drm/drm_gem_cma_helper.h>
#include <drm/drm_gem_framebuffer_helper.h>
#include <drm/drm_plane_helper.h>
#include "video/imx-ipu-v3.h"
#include "imx-drm.h"
#include "ipuv3-plane.h"
struct ipu_plane_state {
struct drm_plane_state base;
bool use_pre;
};
static inline struct ipu_plane_state *
to_ipu_plane_state(struct drm_plane_state *p)
{
return container_of(p, struct ipu_plane_state, base);
}
static inline struct ipu_plane *to_ipu_plane(struct drm_plane *p)
{
return container_of(p, struct ipu_plane, base);
}
static const uint32_t ipu_plane_formats[] = {
DRM_FORMAT_ARGB1555,
DRM_FORMAT_XRGB1555,
DRM_FORMAT_ABGR1555,
DRM_FORMAT_XBGR1555,
DRM_FORMAT_RGBA5551,
DRM_FORMAT_BGRA5551,
DRM_FORMAT_ARGB4444,
DRM_FORMAT_ARGB8888,
DRM_FORMAT_XRGB8888,
DRM_FORMAT_ABGR8888,
DRM_FORMAT_XBGR8888,
DRM_FORMAT_RGBA8888,
DRM_FORMAT_RGBX8888,
DRM_FORMAT_BGRA8888,
DRM_FORMAT_BGRX8888,
DRM_FORMAT_UYVY,
DRM_FORMAT_VYUY,
DRM_FORMAT_YUYV,
DRM_FORMAT_YVYU,
DRM_FORMAT_YUV420,
DRM_FORMAT_YVU420,
DRM_FORMAT_YUV422,
DRM_FORMAT_YVU422,
DRM_FORMAT_YUV444,
DRM_FORMAT_YVU444,
DRM_FORMAT_NV12,
DRM_FORMAT_NV16,
DRM_FORMAT_RGB565,
DRM_FORMAT_RGB565_A8,
DRM_FORMAT_BGR565_A8,
DRM_FORMAT_RGB888_A8,
DRM_FORMAT_BGR888_A8,
DRM_FORMAT_RGBX8888_A8,
DRM_FORMAT_BGRX8888_A8,
};
static const uint64_t ipu_format_modifiers[] = {
DRM_FORMAT_MOD_LINEAR,
DRM_FORMAT_MOD_INVALID
};
static const uint64_t pre_format_modifiers[] = {
DRM_FORMAT_MOD_LINEAR,
DRM_FORMAT_MOD_VIVANTE_TILED,
DRM_FORMAT_MOD_VIVANTE_SUPER_TILED,
DRM_FORMAT_MOD_INVALID
};
int ipu_plane_irq(struct ipu_plane *ipu_plane)
{
return ipu_idmac_channel_irq(ipu_plane->ipu, ipu_plane->ipu_ch,
IPU_IRQ_EOF);
}
static inline unsigned long
drm_plane_state_to_eba(struct drm_plane_state *state, int plane)
{
struct drm_framebuffer *fb = state->fb;
struct drm_gem_cma_object *cma_obj;
int x = state->src.x1 >> 16;
int y = state->src.y1 >> 16;
cma_obj = drm_fb_cma_get_gem_obj(fb, plane);
BUG_ON(!cma_obj);
return cma_obj->paddr + fb->offsets[plane] + fb->pitches[plane] * y +
fb->format->cpp[plane] * x;
}
static inline unsigned long
drm_plane_state_to_ubo(struct drm_plane_state *state)
{
struct drm_framebuffer *fb = state->fb;
struct drm_gem_cma_object *cma_obj;
unsigned long eba = drm_plane_state_to_eba(state, 0);
int x = state->src.x1 >> 16;
int y = state->src.y1 >> 16;
cma_obj = drm_fb_cma_get_gem_obj(fb, 1);
BUG_ON(!cma_obj);
x /= drm_format_horz_chroma_subsampling(fb->format->format);
y /= drm_format_vert_chroma_subsampling(fb->format->format);
return cma_obj->paddr + fb->offsets[1] + fb->pitches[1] * y +
fb->format->cpp[1] * x - eba;
}
static inline unsigned long
drm_plane_state_to_vbo(struct drm_plane_state *state)
{
struct drm_framebuffer *fb = state->fb;
struct drm_gem_cma_object *cma_obj;
unsigned long eba = drm_plane_state_to_eba(state, 0);
int x = state->src.x1 >> 16;
int y = state->src.y1 >> 16;
cma_obj = drm_fb_cma_get_gem_obj(fb, 2);
BUG_ON(!cma_obj);
x /= drm_format_horz_chroma_subsampling(fb->format->format);
y /= drm_format_vert_chroma_subsampling(fb->format->format);
return cma_obj->paddr + fb->offsets[2] + fb->pitches[2] * y +
fb->format->cpp[2] * x - eba;
}
void ipu_plane_put_resources(struct ipu_plane *ipu_plane)
{
if (!IS_ERR_OR_NULL(ipu_plane->dp))
ipu_dp_put(ipu_plane->dp);
if (!IS_ERR_OR_NULL(ipu_plane->dmfc))
ipu_dmfc_put(ipu_plane->dmfc);
if (!IS_ERR_OR_NULL(ipu_plane->ipu_ch))
ipu_idmac_put(ipu_plane->ipu_ch);
if (!IS_ERR_OR_NULL(ipu_plane->alpha_ch))
ipu_idmac_put(ipu_plane->alpha_ch);
}
int ipu_plane_get_resources(struct ipu_plane *ipu_plane)
{
int ret;
int alpha_ch;
ipu_plane->ipu_ch = ipu_idmac_get(ipu_plane->ipu, ipu_plane->dma);
if (IS_ERR(ipu_plane->ipu_ch)) {
ret = PTR_ERR(ipu_plane->ipu_ch);
DRM_ERROR("failed to get idmac channel: %d\n", ret);
return ret;
}
alpha_ch = ipu_channel_alpha_channel(ipu_plane->dma);
if (alpha_ch >= 0) {
ipu_plane->alpha_ch = ipu_idmac_get(ipu_plane->ipu, alpha_ch);
if (IS_ERR(ipu_plane->alpha_ch)) {
ret = PTR_ERR(ipu_plane->alpha_ch);
DRM_ERROR("failed to get alpha idmac channel %d: %d\n",
alpha_ch, ret);
return ret;
}
}
ipu_plane->dmfc = ipu_dmfc_get(ipu_plane->ipu, ipu_plane->dma);
if (IS_ERR(ipu_plane->dmfc)) {
ret = PTR_ERR(ipu_plane->dmfc);
DRM_ERROR("failed to get dmfc: ret %d\n", ret);
goto err_out;
}
if (ipu_plane->dp_flow >= 0) {
ipu_plane->dp = ipu_dp_get(ipu_plane->ipu, ipu_plane->dp_flow);
if (IS_ERR(ipu_plane->dp)) {
ret = PTR_ERR(ipu_plane->dp);
DRM_ERROR("failed to get dp flow: %d\n", ret);
goto err_out;
}
}
return 0;
err_out:
ipu_plane_put_resources(ipu_plane);
return ret;
}
static bool ipu_plane_separate_alpha(struct ipu_plane *ipu_plane)
{
switch (ipu_plane->base.state->fb->format->format) {
case DRM_FORMAT_RGB565_A8:
case DRM_FORMAT_BGR565_A8:
case DRM_FORMAT_RGB888_A8:
case DRM_FORMAT_BGR888_A8:
case DRM_FORMAT_RGBX8888_A8:
case DRM_FORMAT_BGRX8888_A8:
return true;
default:
return false;
}
}
static void ipu_plane_enable(struct ipu_plane *ipu_plane)
{
if (ipu_plane->dp)
ipu_dp_enable(ipu_plane->ipu);
ipu_dmfc_enable_channel(ipu_plane->dmfc);
ipu_idmac_enable_channel(ipu_plane->ipu_ch);
if (ipu_plane_separate_alpha(ipu_plane))
ipu_idmac_enable_channel(ipu_plane->alpha_ch);
if (ipu_plane->dp)
ipu_dp_enable_channel(ipu_plane->dp);
}
void ipu_plane_disable(struct ipu_plane *ipu_plane, bool disable_dp_channel)
{
int ret;
DRM_DEBUG_KMS("[%d] %s\n", __LINE__, __func__);
ret = ipu_idmac_wait_busy(ipu_plane->ipu_ch, 50);
if (ret == -ETIMEDOUT) {
DRM_ERROR("[PLANE:%d] IDMAC timeout\n",
ipu_plane->base.base.id);
}
if (ipu_plane->dp && disable_dp_channel)
ipu_dp_disable_channel(ipu_plane->dp, false);
ipu_idmac_disable_channel(ipu_plane->ipu_ch);
if (ipu_plane->alpha_ch)
ipu_idmac_disable_channel(ipu_plane->alpha_ch);
ipu_dmfc_disable_channel(ipu_plane->dmfc);
if (ipu_plane->dp)
ipu_dp_disable(ipu_plane->ipu);
if (ipu_prg_present(ipu_plane->ipu))
ipu_prg_channel_disable(ipu_plane->ipu_ch);
}
void ipu_plane_disable_deferred(struct drm_plane *plane)
{
struct ipu_plane *ipu_plane = to_ipu_plane(plane);
if (ipu_plane->disabling) {
ipu_plane->disabling = false;
ipu_plane_disable(ipu_plane, false);
}
}
EXPORT_SYMBOL_GPL(ipu_plane_disable_deferred);
static void ipu_plane_destroy(struct drm_plane *plane)
{
struct ipu_plane *ipu_plane = to_ipu_plane(plane);
DRM_DEBUG_KMS("[%d] %s\n", __LINE__, __func__);
drm_plane_cleanup(plane);
kfree(ipu_plane);
}
static void ipu_plane_state_reset(struct drm_plane *plane)
{
struct ipu_plane_state *ipu_state;
if (plane->state) {
ipu_state = to_ipu_plane_state(plane->state);
__drm_atomic_helper_plane_destroy_state(plane->state);
kfree(ipu_state);
plane->state = NULL;
}
ipu_state = kzalloc(sizeof(*ipu_state), GFP_KERNEL);
if (ipu_state)
__drm_atomic_helper_plane_reset(plane, &ipu_state->base);
}
static struct drm_plane_state *
ipu_plane_duplicate_state(struct drm_plane *plane)
{
struct ipu_plane_state *state;
if (WARN_ON(!plane->state))
return NULL;
state = kmalloc(sizeof(*state), GFP_KERNEL);
if (state)
__drm_atomic_helper_plane_duplicate_state(plane, &state->base);
return &state->base;
}
static void ipu_plane_destroy_state(struct drm_plane *plane,
struct drm_plane_state *state)
{
struct ipu_plane_state *ipu_state = to_ipu_plane_state(state);
__drm_atomic_helper_plane_destroy_state(state);
kfree(ipu_state);
}
static bool ipu_plane_format_mod_supported(struct drm_plane *plane,
uint32_t format, uint64_t modifier)
{
struct ipu_soc *ipu = to_ipu_plane(plane)->ipu;
/* linear is supported for all planes and formats */
if (modifier == DRM_FORMAT_MOD_LINEAR)
return true;
/* without a PRG there are no supported modifiers */
if (!ipu_prg_present(ipu))
return false;
return ipu_prg_format_supported(ipu, format, modifier);
}
static const struct drm_plane_funcs ipu_plane_funcs = {
.update_plane = drm_atomic_helper_update_plane,
.disable_plane = drm_atomic_helper_disable_plane,
.destroy = ipu_plane_destroy,
.reset = ipu_plane_state_reset,
.atomic_duplicate_state = ipu_plane_duplicate_state,
.atomic_destroy_state = ipu_plane_destroy_state,
.format_mod_supported = ipu_plane_format_mod_supported,
};
static int ipu_plane_atomic_check(struct drm_plane *plane,
struct drm_plane_state *state)
{
struct drm_plane_state *old_state = plane->state;
struct drm_crtc_state *crtc_state;
struct device *dev = plane->dev->dev;
struct drm_framebuffer *fb = state->fb;
struct drm_framebuffer *old_fb = old_state->fb;
unsigned long eba, ubo, vbo, old_ubo, old_vbo, alpha_eba;
bool can_position = (plane->type == DRM_PLANE_TYPE_OVERLAY);
int hsub, vsub;
int ret;
/* Ok to disable */
if (!fb)
return 0;
if (!state->crtc)
return -EINVAL;
crtc_state =
drm_atomic_get_existing_crtc_state(state->state, state->crtc);
if (WARN_ON(!crtc_state))
return -EINVAL;
ret = drm_atomic_helper_check_plane_state(state, crtc_state,
DRM_PLANE_HELPER_NO_SCALING,
DRM_PLANE_HELPER_NO_SCALING,
can_position, true);
if (ret)
return ret;
/* nothing to check when disabling or disabled */
if (!crtc_state->enable)
return 0;
switch (plane->type) {
case DRM_PLANE_TYPE_PRIMARY:
/* full plane minimum width is 13 pixels */
if (drm_rect_width(&state->dst) < 13)
return -EINVAL;
break;
case DRM_PLANE_TYPE_OVERLAY:
break;
default:
dev_warn(dev, "Unsupported plane type %d\n", plane->type);
return -EINVAL;
}
if (drm_rect_height(&state->dst) < 2)
return -EINVAL;
/*
* We support resizing active plane or changing its format by
* forcing CRTC mode change in plane's ->atomic_check callback
* and disabling all affected active planes in CRTC's ->atomic_disable
* callback. The planes will be reenabled in plane's ->atomic_update
* callback.
*/
if (old_fb &&
(drm_rect_width(&state->dst) != drm_rect_width(&old_state->dst) ||
drm_rect_height(&state->dst) != drm_rect_height(&old_state->dst) ||
fb->format != old_fb->format))
crtc_state->mode_changed = true;
eba = drm_plane_state_to_eba(state, 0);
if (eba & 0x7)
return -EINVAL;
if (fb->pitches[0] < 1 || fb->pitches[0] > 16384)
return -EINVAL;
if (old_fb && fb->pitches[0] != old_fb->pitches[0])
crtc_state->mode_changed = true;
switch (fb->format->format) {
case DRM_FORMAT_YUV420:
case DRM_FORMAT_YVU420:
case DRM_FORMAT_YUV422:
case DRM_FORMAT_YVU422:
case DRM_FORMAT_YUV444:
case DRM_FORMAT_YVU444:
/*
* Multiplanar formats have to meet the following restrictions:
* - The (up to) three plane addresses are EBA, EBA+UBO, EBA+VBO
* - EBA, UBO and VBO are a multiple of 8
* - UBO and VBO are unsigned and not larger than 0xfffff8
* - Only EBA may be changed while scanout is active
* - The strides of U and V planes must be identical.
*/
vbo = drm_plane_state_to_vbo(state);
if (vbo & 0x7 || vbo > 0xfffff8)
return -EINVAL;
if (old_fb && (fb->format == old_fb->format)) {
old_vbo = drm_plane_state_to_vbo(old_state);
if (vbo != old_vbo)
crtc_state->mode_changed = true;
}
if (fb->pitches[1] != fb->pitches[2])
return -EINVAL;
/* fall-through */
case DRM_FORMAT_NV12:
case DRM_FORMAT_NV16:
ubo = drm_plane_state_to_ubo(state);
if (ubo & 0x7 || ubo > 0xfffff8)
return -EINVAL;
if (old_fb && (fb->format == old_fb->format)) {
old_ubo = drm_plane_state_to_ubo(old_state);
if (ubo != old_ubo)
crtc_state->mode_changed = true;
}
if (fb->pitches[1] < 1 || fb->pitches[1] > 16384)
return -EINVAL;
if (old_fb && old_fb->pitches[1] != fb->pitches[1])
crtc_state->mode_changed = true;
/*
* The x/y offsets must be even in case of horizontal/vertical
* chroma subsampling.
*/
hsub = drm_format_horz_chroma_subsampling(fb->format->format);
vsub = drm_format_vert_chroma_subsampling(fb->format->format);
if (((state->src.x1 >> 16) & (hsub - 1)) ||
((state->src.y1 >> 16) & (vsub - 1)))
return -EINVAL;
break;
case DRM_FORMAT_RGB565_A8:
case DRM_FORMAT_BGR565_A8:
case DRM_FORMAT_RGB888_A8:
case DRM_FORMAT_BGR888_A8:
case DRM_FORMAT_RGBX8888_A8:
case DRM_FORMAT_BGRX8888_A8:
alpha_eba = drm_plane_state_to_eba(state, 1);
if (alpha_eba & 0x7)
return -EINVAL;
if (fb->pitches[1] < 1 || fb->pitches[1] > 16384)
return -EINVAL;
if (old_fb && old_fb->pitches[1] != fb->pitches[1])
crtc_state->mode_changed = true;
break;
}
return 0;
}
static void ipu_plane_atomic_disable(struct drm_plane *plane,
struct drm_plane_state *old_state)
{
struct ipu_plane *ipu_plane = to_ipu_plane(plane);
if (ipu_plane->dp)
ipu_dp_disable_channel(ipu_plane->dp, true);
ipu_plane->disabling = true;
}
static int ipu_chan_assign_axi_id(int ipu_chan)
{
switch (ipu_chan) {
case IPUV3_CHANNEL_MEM_BG_SYNC:
return 1;
case IPUV3_CHANNEL_MEM_FG_SYNC:
return 2;
case IPUV3_CHANNEL_MEM_DC_SYNC:
return 3;
default:
return 0;
}
}
static void ipu_calculate_bursts(u32 width, u32 cpp, u32 stride,
u8 *burstsize, u8 *num_bursts)
{
const unsigned int width_bytes = width * cpp;
unsigned int npb, bursts;
/* Maximum number of pixels per burst without overshooting stride */
for (npb = 64 / cpp; npb > 0; --npb) {
if (round_up(width_bytes, npb * cpp) <= stride)
break;
}
*burstsize = npb;
/* Maximum number of consecutive bursts without overshooting stride */
for (bursts = 8; bursts > 1; bursts /= 2) {
if (round_up(width_bytes, npb * cpp * bursts) <= stride)
break;
}
*num_bursts = bursts;
}
static void ipu_plane_atomic_update(struct drm_plane *plane,
struct drm_plane_state *old_state)
{
struct ipu_plane *ipu_plane = to_ipu_plane(plane);
struct drm_plane_state *state = plane->state;
struct ipu_plane_state *ipu_state = to_ipu_plane_state(state);
struct drm_crtc_state *crtc_state = state->crtc->state;
struct drm_framebuffer *fb = state->fb;
struct drm_rect *dst = &state->dst;
unsigned long eba, ubo, vbo;
unsigned long alpha_eba = 0;
enum ipu_color_space ics;
unsigned int axi_id = 0;
const struct drm_format_info *info;
u8 burstsize, num_bursts;
u32 width, height;
int active;
if (ipu_plane->dp_flow == IPU_DP_FLOW_SYNC_FG)
ipu_dp_set_window_pos(ipu_plane->dp, dst->x1, dst->y1);
eba = drm_plane_state_to_eba(state, 0);
/*
* Configure PRG channel and attached PRE, this changes the EBA to an
* internal SRAM location.
*/
if (ipu_state->use_pre) {
axi_id = ipu_chan_assign_axi_id(ipu_plane->dma);
ipu_prg_channel_configure(ipu_plane->ipu_ch, axi_id,
drm_rect_width(&state->src) >> 16,
drm_rect_height(&state->src) >> 16,
fb->pitches[0], fb->format->format,
fb->modifier, &eba);
}
if (old_state->fb && !drm_atomic_crtc_needs_modeset(crtc_state)) {
/* nothing to do if PRE is used */
if (ipu_state->use_pre)
return;
active = ipu_idmac_get_current_buffer(ipu_plane->ipu_ch);
ipu_cpmem_set_buffer(ipu_plane->ipu_ch, !active, eba);
ipu_idmac_select_buffer(ipu_plane->ipu_ch, !active);
if (ipu_plane_separate_alpha(ipu_plane)) {
active = ipu_idmac_get_current_buffer(ipu_plane->alpha_ch);
ipu_cpmem_set_buffer(ipu_plane->alpha_ch, !active,
alpha_eba);
ipu_idmac_select_buffer(ipu_plane->alpha_ch, !active);
}
return;
}
ics = ipu_drm_fourcc_to_colorspace(fb->format->format);
switch (ipu_plane->dp_flow) {
case IPU_DP_FLOW_SYNC_BG:
ipu_dp_setup_channel(ipu_plane->dp, ics, IPUV3_COLORSPACE_RGB);
ipu_dp_set_global_alpha(ipu_plane->dp, true, 0, true);
break;
case IPU_DP_FLOW_SYNC_FG:
ipu_dp_setup_channel(ipu_plane->dp, ics,
IPUV3_COLORSPACE_UNKNOWN);
/* Enable local alpha on partial plane */
switch (fb->format->format) {
case DRM_FORMAT_ARGB1555:
case DRM_FORMAT_ABGR1555:
case DRM_FORMAT_RGBA5551:
case DRM_FORMAT_BGRA5551:
case DRM_FORMAT_ARGB4444:
case DRM_FORMAT_ARGB8888:
case DRM_FORMAT_ABGR8888:
case DRM_FORMAT_RGBA8888:
case DRM_FORMAT_BGRA8888:
case DRM_FORMAT_RGB565_A8:
case DRM_FORMAT_BGR565_A8:
case DRM_FORMAT_RGB888_A8:
case DRM_FORMAT_BGR888_A8:
case DRM_FORMAT_RGBX8888_A8:
case DRM_FORMAT_BGRX8888_A8:
ipu_dp_set_global_alpha(ipu_plane->dp, false, 0, false);
break;
default:
ipu_dp_set_global_alpha(ipu_plane->dp, true, 0, true);
break;
}
}
ipu_dmfc_config_wait4eot(ipu_plane->dmfc, drm_rect_width(dst));
width = drm_rect_width(&state->src) >> 16;
height = drm_rect_height(&state->src) >> 16;
info = drm_format_info(fb->format->format);
ipu_calculate_bursts(width, info->cpp[0], fb->pitches[0],
&burstsize, &num_bursts);
ipu_cpmem_zero(ipu_plane->ipu_ch);
ipu_cpmem_set_resolution(ipu_plane->ipu_ch, width, height);
ipu_cpmem_set_fmt(ipu_plane->ipu_ch, fb->format->format);
ipu_cpmem_set_burstsize(ipu_plane->ipu_ch, burstsize);
ipu_cpmem_set_high_priority(ipu_plane->ipu_ch);
ipu_idmac_set_double_buffer(ipu_plane->ipu_ch, 1);
ipu_cpmem_set_stride(ipu_plane->ipu_ch, fb->pitches[0]);
ipu_cpmem_set_axi_id(ipu_plane->ipu_ch, axi_id);
switch (fb->format->format) {
case DRM_FORMAT_YUV420:
case DRM_FORMAT_YVU420:
case DRM_FORMAT_YUV422:
case DRM_FORMAT_YVU422:
case DRM_FORMAT_YUV444:
case DRM_FORMAT_YVU444:
ubo = drm_plane_state_to_ubo(state);
vbo = drm_plane_state_to_vbo(state);
if (fb->format->format == DRM_FORMAT_YVU420 ||
fb->format->format == DRM_FORMAT_YVU422 ||
fb->format->format == DRM_FORMAT_YVU444)
swap(ubo, vbo);
ipu_cpmem_set_yuv_planar_full(ipu_plane->ipu_ch,
fb->pitches[1], ubo, vbo);
dev_dbg(ipu_plane->base.dev->dev,
"phy = %lu %lu %lu, x = %d, y = %d", eba, ubo, vbo,
state->src.x1 >> 16, state->src.y1 >> 16);
break;
case DRM_FORMAT_NV12:
case DRM_FORMAT_NV16:
ubo = drm_plane_state_to_ubo(state);
ipu_cpmem_set_yuv_planar_full(ipu_plane->ipu_ch,
fb->pitches[1], ubo, ubo);
dev_dbg(ipu_plane->base.dev->dev,
"phy = %lu %lu, x = %d, y = %d", eba, ubo,
state->src.x1 >> 16, state->src.y1 >> 16);
break;
case DRM_FORMAT_RGB565_A8:
case DRM_FORMAT_BGR565_A8:
case DRM_FORMAT_RGB888_A8:
case DRM_FORMAT_BGR888_A8:
case DRM_FORMAT_RGBX8888_A8:
case DRM_FORMAT_BGRX8888_A8:
alpha_eba = drm_plane_state_to_eba(state, 1);
num_bursts = 0;
dev_dbg(ipu_plane->base.dev->dev, "phys = %lu %lu, x = %d, y = %d",
eba, alpha_eba, state->src.x1 >> 16, state->src.y1 >> 16);
ipu_cpmem_set_burstsize(ipu_plane->ipu_ch, 16);
ipu_cpmem_zero(ipu_plane->alpha_ch);
ipu_cpmem_set_resolution(ipu_plane->alpha_ch,
drm_rect_width(&state->src) >> 16,
drm_rect_height(&state->src) >> 16);
ipu_cpmem_set_format_passthrough(ipu_plane->alpha_ch, 8);
ipu_cpmem_set_high_priority(ipu_plane->alpha_ch);
ipu_idmac_set_double_buffer(ipu_plane->alpha_ch, 1);
ipu_cpmem_set_stride(ipu_plane->alpha_ch, fb->pitches[1]);
ipu_cpmem_set_burstsize(ipu_plane->alpha_ch, 16);
ipu_cpmem_set_buffer(ipu_plane->alpha_ch, 0, alpha_eba);
ipu_cpmem_set_buffer(ipu_plane->alpha_ch, 1, alpha_eba);
break;
default:
dev_dbg(ipu_plane->base.dev->dev, "phys = %lu, x = %d, y = %d",
eba, state->src.x1 >> 16, state->src.y1 >> 16);
break;
}
ipu_cpmem_set_buffer(ipu_plane->ipu_ch, 0, eba);
ipu_cpmem_set_buffer(ipu_plane->ipu_ch, 1, eba);
ipu_idmac_lock_enable(ipu_plane->ipu_ch, num_bursts);
ipu_plane_enable(ipu_plane);
}
static const struct drm_plane_helper_funcs ipu_plane_helper_funcs = {
.prepare_fb = drm_gem_fb_prepare_fb,
.atomic_check = ipu_plane_atomic_check,
.atomic_disable = ipu_plane_atomic_disable,
.atomic_update = ipu_plane_atomic_update,
};
int ipu_planes_assign_pre(struct drm_device *dev,
struct drm_atomic_state *state)
{
struct drm_crtc_state *old_crtc_state, *crtc_state;
struct drm_plane_state *plane_state;
struct ipu_plane_state *ipu_state;
struct ipu_plane *ipu_plane;
struct drm_plane *plane;
struct drm_crtc *crtc;
int available_pres = ipu_prg_max_active_channels();
int ret, i;
for_each_oldnew_crtc_in_state(state, crtc, old_crtc_state, crtc_state, i) {
ret = drm_atomic_add_affected_planes(state, crtc);
if (ret)
return ret;
}
/*
* We are going over the planes in 2 passes: first we assign PREs to
* planes with a tiling modifier, which need the PREs to resolve into
* linear. Any failure to assign a PRE there is fatal. In the second
* pass we try to assign PREs to linear FBs, to improve memory access
* patterns for them. Failure at this point is non-fatal, as we can
* scan out linear FBs without a PRE.
*/
for_each_new_plane_in_state(state, plane, plane_state, i) {
ipu_state = to_ipu_plane_state(plane_state);
ipu_plane = to_ipu_plane(plane);
if (!plane_state->fb) {
ipu_state->use_pre = false;
continue;
}
if (!(plane_state->fb->flags & DRM_MODE_FB_MODIFIERS) ||
plane_state->fb->modifier == DRM_FORMAT_MOD_LINEAR)
continue;
if (!ipu_prg_present(ipu_plane->ipu) || !available_pres)
return -EINVAL;
if (!ipu_prg_format_supported(ipu_plane->ipu,
plane_state->fb->format->format,
plane_state->fb->modifier))
return -EINVAL;
ipu_state->use_pre = true;
available_pres--;
}
for_each_new_plane_in_state(state, plane, plane_state, i) {
ipu_state = to_ipu_plane_state(plane_state);
ipu_plane = to_ipu_plane(plane);
if (!plane_state->fb) {
ipu_state->use_pre = false;
continue;
}
if ((plane_state->fb->flags & DRM_MODE_FB_MODIFIERS) &&
plane_state->fb->modifier != DRM_FORMAT_MOD_LINEAR)
continue;
/* make sure that modifier is initialized */
plane_state->fb->modifier = DRM_FORMAT_MOD_LINEAR;
if (ipu_prg_present(ipu_plane->ipu) && available_pres &&
ipu_prg_format_supported(ipu_plane->ipu,
plane_state->fb->format->format,
plane_state->fb->modifier)) {
ipu_state->use_pre = true;
available_pres--;
} else {
ipu_state->use_pre = false;
}
}
return 0;
}
EXPORT_SYMBOL_GPL(ipu_planes_assign_pre);
struct ipu_plane *ipu_plane_init(struct drm_device *dev, struct ipu_soc *ipu,
int dma, int dp, unsigned int possible_crtcs,
enum drm_plane_type type)
{
struct ipu_plane *ipu_plane;
const uint64_t *modifiers = ipu_format_modifiers;
int ret;
DRM_DEBUG_KMS("channel %d, dp flow %d, possible_crtcs=0x%x\n",
dma, dp, possible_crtcs);
ipu_plane = kzalloc(sizeof(*ipu_plane), GFP_KERNEL);
if (!ipu_plane) {
DRM_ERROR("failed to allocate plane\n");
return ERR_PTR(-ENOMEM);
}
ipu_plane->ipu = ipu;
ipu_plane->dma = dma;
ipu_plane->dp_flow = dp;
if (ipu_prg_present(ipu))
modifiers = pre_format_modifiers;
ret = drm_universal_plane_init(dev, &ipu_plane->base, possible_crtcs,
&ipu_plane_funcs, ipu_plane_formats,
ARRAY_SIZE(ipu_plane_formats),
modifiers, type, NULL);
if (ret) {
DRM_ERROR("failed to initialize plane\n");
kfree(ipu_plane);
return ERR_PTR(ret);
}
drm_plane_helper_add(&ipu_plane->base, &ipu_plane_helper_funcs);
return ipu_plane;
}
Reference in New Issue View Git Blame Copy Permalink