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linuxdebug/drivers/gpu/drm/amd/amdgpu/amdgpu_display.c

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null pointer error
2024-07-16 15:50:57 +02:00
/*
* Copyright 2007-8 Advanced Micro Devices, Inc.
* Copyright 2008 Red Hat Inc.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
* OTHER DEALINGS IN THE SOFTWARE.
*
* Authors: Dave Airlie
* Alex Deucher
*/
#include <drm/amdgpu_drm.h>
#include "amdgpu.h"
#include "amdgpu_i2c.h"
#include "atom.h"
#include "amdgpu_connectors.h"
#include "amdgpu_display.h"
#include "soc15_common.h"
#include "gc/gc_11_0_0_offset.h"
#include "gc/gc_11_0_0_sh_mask.h"
#include <asm/div64.h>
#include <linux/pci.h>
#include <linux/pm_runtime.h>
#include <drm/drm_crtc_helper.h>
#include <drm/drm_damage_helper.h>
#include <drm/drm_drv.h>
#include <drm/drm_edid.h>
#include <drm/drm_gem_framebuffer_helper.h>
#include <drm/drm_fb_helper.h>
#include <drm/drm_fourcc.h>
#include <drm/drm_vblank.h>
static int amdgpu_display_framebuffer_init(struct drm_device *dev,
struct amdgpu_framebuffer *rfb,
const struct drm_mode_fb_cmd2 *mode_cmd,
struct drm_gem_object *obj);
static void amdgpu_display_flip_callback(struct dma_fence *f,
struct dma_fence_cb *cb)
{
struct amdgpu_flip_work *work =
container_of(cb, struct amdgpu_flip_work, cb);
dma_fence_put(f);
schedule_work(&work->flip_work.work);
}
static bool amdgpu_display_flip_handle_fence(struct amdgpu_flip_work *work,
struct dma_fence **f)
{
struct dma_fence *fence= *f;
if (fence == NULL)
return false;
*f = NULL;
if (!dma_fence_add_callback(fence, &work->cb,
amdgpu_display_flip_callback))
return true;
dma_fence_put(fence);
return false;
}
static void amdgpu_display_flip_work_func(struct work_struct *__work)
{
struct delayed_work *delayed_work =
container_of(__work, struct delayed_work, work);
struct amdgpu_flip_work *work =
container_of(delayed_work, struct amdgpu_flip_work, flip_work);
struct amdgpu_device *adev = work->adev;
struct amdgpu_crtc *amdgpu_crtc = adev->mode_info.crtcs[work->crtc_id];
struct drm_crtc *crtc = &amdgpu_crtc->base;
unsigned long flags;
unsigned i;
int vpos, hpos;
for (i = 0; i < work->shared_count; ++i)
if (amdgpu_display_flip_handle_fence(work, &work->shared[i]))
return;
/* Wait until we're out of the vertical blank period before the one
* targeted by the flip
*/
if (amdgpu_crtc->enabled &&
(amdgpu_display_get_crtc_scanoutpos(adev_to_drm(adev), work->crtc_id, 0,
&vpos, &hpos, NULL, NULL,
&crtc->hwmode)
& (DRM_SCANOUTPOS_VALID | DRM_SCANOUTPOS_IN_VBLANK)) ==
(DRM_SCANOUTPOS_VALID | DRM_SCANOUTPOS_IN_VBLANK) &&
(int)(work->target_vblank -
amdgpu_get_vblank_counter_kms(crtc)) > 0) {
schedule_delayed_work(&work->flip_work, usecs_to_jiffies(1000));
return;
}
/* We borrow the event spin lock for protecting flip_status */
spin_lock_irqsave(&crtc->dev->event_lock, flags);
/* Do the flip (mmio) */
adev->mode_info.funcs->page_flip(adev, work->crtc_id, work->base, work->async);
/* Set the flip status */
amdgpu_crtc->pflip_status = AMDGPU_FLIP_SUBMITTED;
spin_unlock_irqrestore(&crtc->dev->event_lock, flags);
drm_dbg_vbl(adev_to_drm(adev),
"crtc:%d[%p], pflip_stat:AMDGPU_FLIP_SUBMITTED, work: %p,\n",
amdgpu_crtc->crtc_id, amdgpu_crtc, work);
}
/*
* Handle unpin events outside the interrupt handler proper.
*/
static void amdgpu_display_unpin_work_func(struct work_struct *__work)
{
struct amdgpu_flip_work *work =
container_of(__work, struct amdgpu_flip_work, unpin_work);
int r;
/* unpin of the old buffer */
r = amdgpu_bo_reserve(work->old_abo, true);
if (likely(r == 0)) {
amdgpu_bo_unpin(work->old_abo);
amdgpu_bo_unreserve(work->old_abo);
} else
DRM_ERROR("failed to reserve buffer after flip\n");
amdgpu_bo_unref(&work->old_abo);
kfree(work->shared);
kfree(work);
}
int amdgpu_display_crtc_page_flip_target(struct drm_crtc *crtc,
struct drm_framebuffer *fb,
struct drm_pending_vblank_event *event,
uint32_t page_flip_flags, uint32_t target,
struct drm_modeset_acquire_ctx *ctx)
{
struct drm_device *dev = crtc->dev;
struct amdgpu_device *adev = drm_to_adev(dev);
struct amdgpu_crtc *amdgpu_crtc = to_amdgpu_crtc(crtc);
struct drm_gem_object *obj;
struct amdgpu_flip_work *work;
struct amdgpu_bo *new_abo;
unsigned long flags;
u64 tiling_flags;
int i, r;
work = kzalloc(sizeof *work, GFP_KERNEL);
if (work == NULL)
return -ENOMEM;
INIT_DELAYED_WORK(&work->flip_work, amdgpu_display_flip_work_func);
INIT_WORK(&work->unpin_work, amdgpu_display_unpin_work_func);
work->event = event;
work->adev = adev;
work->crtc_id = amdgpu_crtc->crtc_id;
work->async = (page_flip_flags & DRM_MODE_PAGE_FLIP_ASYNC) != 0;
/* schedule unpin of the old buffer */
obj = crtc->primary->fb->obj[0];
/* take a reference to the old object */
work->old_abo = gem_to_amdgpu_bo(obj);
amdgpu_bo_ref(work->old_abo);
obj = fb->obj[0];
new_abo = gem_to_amdgpu_bo(obj);
/* pin the new buffer */
r = amdgpu_bo_reserve(new_abo, false);
if (unlikely(r != 0)) {
DRM_ERROR("failed to reserve new abo buffer before flip\n");
goto cleanup;
}
if (!adev->enable_virtual_display) {
r = amdgpu_bo_pin(new_abo,
amdgpu_display_supported_domains(adev, new_abo->flags));
if (unlikely(r != 0)) {
DRM_ERROR("failed to pin new abo buffer before flip\n");
goto unreserve;
}
}
r = amdgpu_ttm_alloc_gart(&new_abo->tbo);
if (unlikely(r != 0)) {
DRM_ERROR("%p bind failed\n", new_abo);
goto unpin;
}
r = dma_resv_get_fences(new_abo->tbo.base.resv, DMA_RESV_USAGE_WRITE,
&work->shared_count,
&work->shared);
if (unlikely(r != 0)) {
DRM_ERROR("failed to get fences for buffer\n");
goto unpin;
}
amdgpu_bo_get_tiling_flags(new_abo, &tiling_flags);
amdgpu_bo_unreserve(new_abo);
if (!adev->enable_virtual_display)
work->base = amdgpu_bo_gpu_offset(new_abo);
work->target_vblank = target - (uint32_t)drm_crtc_vblank_count(crtc) +
amdgpu_get_vblank_counter_kms(crtc);
/* we borrow the event spin lock for protecting flip_wrok */
spin_lock_irqsave(&crtc->dev->event_lock, flags);
if (amdgpu_crtc->pflip_status != AMDGPU_FLIP_NONE) {
DRM_DEBUG_DRIVER("flip queue: crtc already busy\n");
spin_unlock_irqrestore(&crtc->dev->event_lock, flags);
r = -EBUSY;
goto pflip_cleanup;
}
amdgpu_crtc->pflip_status = AMDGPU_FLIP_PENDING;
amdgpu_crtc->pflip_works = work;
DRM_DEBUG_DRIVER("crtc:%d[%p], pflip_stat:AMDGPU_FLIP_PENDING, work: %p,\n",
amdgpu_crtc->crtc_id, amdgpu_crtc, work);
/* update crtc fb */
crtc->primary->fb = fb;
spin_unlock_irqrestore(&crtc->dev->event_lock, flags);
amdgpu_display_flip_work_func(&work->flip_work.work);
return 0;
pflip_cleanup:
if (unlikely(amdgpu_bo_reserve(new_abo, false) != 0)) {
DRM_ERROR("failed to reserve new abo in error path\n");
goto cleanup;
}
unpin:
if (!adev->enable_virtual_display)
amdgpu_bo_unpin(new_abo);
unreserve:
amdgpu_bo_unreserve(new_abo);
cleanup:
amdgpu_bo_unref(&work->old_abo);
for (i = 0; i < work->shared_count; ++i)
dma_fence_put(work->shared[i]);
kfree(work->shared);
kfree(work);
return r;
}
int amdgpu_display_crtc_set_config(struct drm_mode_set *set,
struct drm_modeset_acquire_ctx *ctx)
{
struct drm_device *dev;
struct amdgpu_device *adev;
struct drm_crtc *crtc;
bool active = false;
int ret;
if (!set || !set->crtc)
return -EINVAL;
dev = set->crtc->dev;
ret = pm_runtime_get_sync(dev->dev);
if (ret < 0)
goto out;
ret = drm_crtc_helper_set_config(set, ctx);
list_for_each_entry(crtc, &dev->mode_config.crtc_list, head)
if (crtc->enabled)
active = true;
pm_runtime_mark_last_busy(dev->dev);
adev = drm_to_adev(dev);
/* if we have active crtcs and we don't have a power ref,
take the current one */
if (active && !adev->have_disp_power_ref) {
adev->have_disp_power_ref = true;
return ret;
}
/* if we have no active crtcs, then drop the power ref
we got before */
if (!active && adev->have_disp_power_ref) {
pm_runtime_put_autosuspend(dev->dev);
adev->have_disp_power_ref = false;
}
out:
/* drop the power reference we got coming in here */
pm_runtime_put_autosuspend(dev->dev);
return ret;
}
static const char *encoder_names[41] = {
"NONE",
"INTERNAL_LVDS",
"INTERNAL_TMDS1",
"INTERNAL_TMDS2",
"INTERNAL_DAC1",
"INTERNAL_DAC2",
"INTERNAL_SDVOA",
"INTERNAL_SDVOB",
"SI170B",
"CH7303",
"CH7301",
"INTERNAL_DVO1",
"EXTERNAL_SDVOA",
"EXTERNAL_SDVOB",
"TITFP513",
"INTERNAL_LVTM1",
"VT1623",
"HDMI_SI1930",
"HDMI_INTERNAL",
"INTERNAL_KLDSCP_TMDS1",
"INTERNAL_KLDSCP_DVO1",
"INTERNAL_KLDSCP_DAC1",
"INTERNAL_KLDSCP_DAC2",
"SI178",
"MVPU_FPGA",
"INTERNAL_DDI",
"VT1625",
"HDMI_SI1932",
"DP_AN9801",
"DP_DP501",
"INTERNAL_UNIPHY",
"INTERNAL_KLDSCP_LVTMA",
"INTERNAL_UNIPHY1",
"INTERNAL_UNIPHY2",
"NUTMEG",
"TRAVIS",
"INTERNAL_VCE",
"INTERNAL_UNIPHY3",
"HDMI_ANX9805",
"INTERNAL_AMCLK",
"VIRTUAL",
};
static const char *hpd_names[6] = {
"HPD1",
"HPD2",
"HPD3",
"HPD4",
"HPD5",
"HPD6",
};
void amdgpu_display_print_display_setup(struct drm_device *dev)
{
struct drm_connector *connector;
struct amdgpu_connector *amdgpu_connector;
struct drm_encoder *encoder;
struct amdgpu_encoder *amdgpu_encoder;
struct drm_connector_list_iter iter;
uint32_t devices;
int i = 0;
drm_connector_list_iter_begin(dev, &iter);
DRM_INFO("AMDGPU Display Connectors\n");
drm_for_each_connector_iter(connector, &iter) {
amdgpu_connector = to_amdgpu_connector(connector);
DRM_INFO("Connector %d:\n", i);
DRM_INFO(" %s\n", connector->name);
if (amdgpu_connector->hpd.hpd != AMDGPU_HPD_NONE)
DRM_INFO(" %s\n", hpd_names[amdgpu_connector->hpd.hpd]);
if (amdgpu_connector->ddc_bus) {
DRM_INFO(" DDC: 0x%x 0x%x 0x%x 0x%x 0x%x 0x%x 0x%x 0x%x\n",
amdgpu_connector->ddc_bus->rec.mask_clk_reg,
amdgpu_connector->ddc_bus->rec.mask_data_reg,
amdgpu_connector->ddc_bus->rec.a_clk_reg,
amdgpu_connector->ddc_bus->rec.a_data_reg,
amdgpu_connector->ddc_bus->rec.en_clk_reg,
amdgpu_connector->ddc_bus->rec.en_data_reg,
amdgpu_connector->ddc_bus->rec.y_clk_reg,
amdgpu_connector->ddc_bus->rec.y_data_reg);
if (amdgpu_connector->router.ddc_valid)
DRM_INFO(" DDC Router 0x%x/0x%x\n",
amdgpu_connector->router.ddc_mux_control_pin,
amdgpu_connector->router.ddc_mux_state);
if (amdgpu_connector->router.cd_valid)
DRM_INFO(" Clock/Data Router 0x%x/0x%x\n",
amdgpu_connector->router.cd_mux_control_pin,
amdgpu_connector->router.cd_mux_state);
} else {
if (connector->connector_type == DRM_MODE_CONNECTOR_VGA ||
connector->connector_type == DRM_MODE_CONNECTOR_DVII ||
connector->connector_type == DRM_MODE_CONNECTOR_DVID ||
connector->connector_type == DRM_MODE_CONNECTOR_DVIA ||
connector->connector_type == DRM_MODE_CONNECTOR_HDMIA ||
connector->connector_type == DRM_MODE_CONNECTOR_HDMIB)
DRM_INFO(" DDC: no ddc bus - possible BIOS bug - please report to xorg-driver-ati@lists.x.org\n");
}
DRM_INFO(" Encoders:\n");
list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) {
amdgpu_encoder = to_amdgpu_encoder(encoder);
devices = amdgpu_encoder->devices & amdgpu_connector->devices;
if (devices) {
if (devices & ATOM_DEVICE_CRT1_SUPPORT)
DRM_INFO(" CRT1: %s\n", encoder_names[amdgpu_encoder->encoder_id]);
if (devices & ATOM_DEVICE_CRT2_SUPPORT)
DRM_INFO(" CRT2: %s\n", encoder_names[amdgpu_encoder->encoder_id]);
if (devices & ATOM_DEVICE_LCD1_SUPPORT)
DRM_INFO(" LCD1: %s\n", encoder_names[amdgpu_encoder->encoder_id]);
if (devices & ATOM_DEVICE_DFP1_SUPPORT)
DRM_INFO(" DFP1: %s\n", encoder_names[amdgpu_encoder->encoder_id]);
if (devices & ATOM_DEVICE_DFP2_SUPPORT)
DRM_INFO(" DFP2: %s\n", encoder_names[amdgpu_encoder->encoder_id]);
if (devices & ATOM_DEVICE_DFP3_SUPPORT)
DRM_INFO(" DFP3: %s\n", encoder_names[amdgpu_encoder->encoder_id]);
if (devices & ATOM_DEVICE_DFP4_SUPPORT)
DRM_INFO(" DFP4: %s\n", encoder_names[amdgpu_encoder->encoder_id]);
if (devices & ATOM_DEVICE_DFP5_SUPPORT)
DRM_INFO(" DFP5: %s\n", encoder_names[amdgpu_encoder->encoder_id]);
if (devices & ATOM_DEVICE_DFP6_SUPPORT)
DRM_INFO(" DFP6: %s\n", encoder_names[amdgpu_encoder->encoder_id]);
if (devices & ATOM_DEVICE_TV1_SUPPORT)
DRM_INFO(" TV1: %s\n", encoder_names[amdgpu_encoder->encoder_id]);
if (devices & ATOM_DEVICE_CV_SUPPORT)
DRM_INFO(" CV: %s\n", encoder_names[amdgpu_encoder->encoder_id]);
}
}
i++;
}
drm_connector_list_iter_end(&iter);
}
bool amdgpu_display_ddc_probe(struct amdgpu_connector *amdgpu_connector,
bool use_aux)
{
u8 out = 0x0;
u8 buf[8];
int ret;
struct i2c_msg msgs[] = {
{
.addr = DDC_ADDR,
.flags = 0,
.len = 1,
.buf = &out,
},
{
.addr = DDC_ADDR,
.flags = I2C_M_RD,
.len = 8,
.buf = buf,
}
};
/* on hw with routers, select right port */
if (amdgpu_connector->router.ddc_valid)
amdgpu_i2c_router_select_ddc_port(amdgpu_connector);
if (use_aux) {
ret = i2c_transfer(&amdgpu_connector->ddc_bus->aux.ddc, msgs, 2);
} else {
ret = i2c_transfer(&amdgpu_connector->ddc_bus->adapter, msgs, 2);
}
if (ret != 2)
/* Couldn't find an accessible DDC on this connector */
return false;
/* Probe also for valid EDID header
* EDID header starts with:
* 0x00,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0x00.
* Only the first 6 bytes must be valid as
* drm_edid_block_valid() can fix the last 2 bytes */
if (drm_edid_header_is_valid(buf) < 6) {
/* Couldn't find an accessible EDID on this
* connector */
return false;
}
return true;
}
static int amdgpu_dirtyfb(struct drm_framebuffer *fb, struct drm_file *file,
unsigned int flags, unsigned int color,
struct drm_clip_rect *clips, unsigned int num_clips)
{
if (file)
return -ENOSYS;
return drm_atomic_helper_dirtyfb(fb, file, flags, color, clips,
num_clips);
}
static const struct drm_framebuffer_funcs amdgpu_fb_funcs = {
.destroy = drm_gem_fb_destroy,
.create_handle = drm_gem_fb_create_handle,
};
static const struct drm_framebuffer_funcs amdgpu_fb_funcs_atomic = {
.destroy = drm_gem_fb_destroy,
.create_handle = drm_gem_fb_create_handle,
.dirty = amdgpu_dirtyfb
};
uint32_t amdgpu_display_supported_domains(struct amdgpu_device *adev,
uint64_t bo_flags)
{
uint32_t domain = AMDGPU_GEM_DOMAIN_VRAM;
#if defined(CONFIG_DRM_AMD_DC)
/*
* if amdgpu_bo_support_uswc returns false it means that USWC mappings
* is not supported for this board. But this mapping is required
* to avoid hang caused by placement of scanout BO in GTT on certain
* APUs. So force the BO placement to VRAM in case this architecture
* will not allow USWC mappings.
* Also, don't allow GTT domain if the BO doesn't have USWC flag set.
*/
if ((bo_flags & AMDGPU_GEM_CREATE_CPU_GTT_USWC) &&
amdgpu_bo_support_uswc(bo_flags) &&
amdgpu_device_asic_has_dc_support(adev->asic_type) &&
adev->mode_info.gpu_vm_support)
domain |= AMDGPU_GEM_DOMAIN_GTT;
#endif
return domain;
}
static const struct drm_format_info dcc_formats[] = {
{ .format = DRM_FORMAT_XRGB8888, .depth = 24, .num_planes = 2,
.cpp = { 4, 0, }, .block_w = {1, 1, 1}, .block_h = {1, 1, 1}, .hsub = 1, .vsub = 1, },
{ .format = DRM_FORMAT_XBGR8888, .depth = 24, .num_planes = 2,
.cpp = { 4, 0, }, .block_w = {1, 1, 1}, .block_h = {1, 1, 1}, .hsub = 1, .vsub = 1, },
{ .format = DRM_FORMAT_ARGB8888, .depth = 32, .num_planes = 2,
.cpp = { 4, 0, }, .block_w = {1, 1, 1}, .block_h = {1, 1, 1}, .hsub = 1, .vsub = 1,
.has_alpha = true, },
{ .format = DRM_FORMAT_ABGR8888, .depth = 32, .num_planes = 2,
.cpp = { 4, 0, }, .block_w = {1, 1, 1}, .block_h = {1, 1, 1}, .hsub = 1, .vsub = 1,
.has_alpha = true, },
{ .format = DRM_FORMAT_BGRA8888, .depth = 32, .num_planes = 2,
.cpp = { 4, 0, }, .block_w = {1, 1, 1}, .block_h = {1, 1, 1}, .hsub = 1, .vsub = 1,
.has_alpha = true, },
{ .format = DRM_FORMAT_XRGB2101010, .depth = 30, .num_planes = 2,
.cpp = { 4, 0, }, .block_w = {1, 1, 1}, .block_h = {1, 1, 1}, .hsub = 1, .vsub = 1, },
{ .format = DRM_FORMAT_XBGR2101010, .depth = 30, .num_planes = 2,
.cpp = { 4, 0, }, .block_w = {1, 1, 1}, .block_h = {1, 1, 1}, .hsub = 1, .vsub = 1, },
{ .format = DRM_FORMAT_ARGB2101010, .depth = 30, .num_planes = 2,
.cpp = { 4, 0, }, .block_w = {1, 1, 1}, .block_h = {1, 1, 1}, .hsub = 1, .vsub = 1,
.has_alpha = true, },
{ .format = DRM_FORMAT_ABGR2101010, .depth = 30, .num_planes = 2,
.cpp = { 4, 0, }, .block_w = {1, 1, 1}, .block_h = {1, 1, 1}, .hsub = 1, .vsub = 1,
.has_alpha = true, },
{ .format = DRM_FORMAT_RGB565, .depth = 16, .num_planes = 2,
.cpp = { 2, 0, }, .block_w = {1, 1, 1}, .block_h = {1, 1, 1}, .hsub = 1, .vsub = 1, },
};
static const struct drm_format_info dcc_retile_formats[] = {
{ .format = DRM_FORMAT_XRGB8888, .depth = 24, .num_planes = 3,
.cpp = { 4, 0, 0 }, .block_w = {1, 1, 1}, .block_h = {1, 1, 1}, .hsub = 1, .vsub = 1, },
{ .format = DRM_FORMAT_XBGR8888, .depth = 24, .num_planes = 3,
.cpp = { 4, 0, 0 }, .block_w = {1, 1, 1}, .block_h = {1, 1, 1}, .hsub = 1, .vsub = 1, },
{ .format = DRM_FORMAT_ARGB8888, .depth = 32, .num_planes = 3,
.cpp = { 4, 0, 0 }, .block_w = {1, 1, 1}, .block_h = {1, 1, 1}, .hsub = 1, .vsub = 1,
.has_alpha = true, },
{ .format = DRM_FORMAT_ABGR8888, .depth = 32, .num_planes = 3,
.cpp = { 4, 0, 0 }, .block_w = {1, 1, 1}, .block_h = {1, 1, 1}, .hsub = 1, .vsub = 1,
.has_alpha = true, },
{ .format = DRM_FORMAT_BGRA8888, .depth = 32, .num_planes = 3,
.cpp = { 4, 0, 0 }, .block_w = {1, 1, 1}, .block_h = {1, 1, 1}, .hsub = 1, .vsub = 1,
.has_alpha = true, },
{ .format = DRM_FORMAT_XRGB2101010, .depth = 30, .num_planes = 3,
.cpp = { 4, 0, 0 }, .block_w = {1, 1, 1}, .block_h = {1, 1, 1}, .hsub = 1, .vsub = 1, },
{ .format = DRM_FORMAT_XBGR2101010, .depth = 30, .num_planes = 3,
.cpp = { 4, 0, 0 }, .block_w = {1, 1, 1}, .block_h = {1, 1, 1}, .hsub = 1, .vsub = 1, },
{ .format = DRM_FORMAT_ARGB2101010, .depth = 30, .num_planes = 3,
.cpp = { 4, 0, 0 }, .block_w = {1, 1, 1}, .block_h = {1, 1, 1}, .hsub = 1, .vsub = 1,
.has_alpha = true, },
{ .format = DRM_FORMAT_ABGR2101010, .depth = 30, .num_planes = 3,
.cpp = { 4, 0, 0 }, .block_w = {1, 1, 1}, .block_h = {1, 1, 1}, .hsub = 1, .vsub = 1,
.has_alpha = true, },
{ .format = DRM_FORMAT_RGB565, .depth = 16, .num_planes = 3,
.cpp = { 2, 0, 0 }, .block_w = {1, 1, 1}, .block_h = {1, 1, 1}, .hsub = 1, .vsub = 1, },
};
static const struct drm_format_info *
lookup_format_info(const struct drm_format_info formats[],
int num_formats, u32 format)
{
int i;
for (i = 0; i < num_formats; i++) {
if (formats[i].format == format)
return &formats[i];
}
return NULL;
}
const struct drm_format_info *
amdgpu_lookup_format_info(u32 format, uint64_t modifier)
{
if (!IS_AMD_FMT_MOD(modifier))
return NULL;
if (AMD_FMT_MOD_GET(DCC_RETILE, modifier))
return lookup_format_info(dcc_retile_formats,
ARRAY_SIZE(dcc_retile_formats),
format);
if (AMD_FMT_MOD_GET(DCC, modifier))
return lookup_format_info(dcc_formats, ARRAY_SIZE(dcc_formats),
format);
/* returning NULL will cause the default format structs to be used. */
return NULL;
}
/*
* Tries to extract the renderable DCC offset from the opaque metadata attached
* to the buffer.
*/
static int
extract_render_dcc_offset(struct amdgpu_device *adev,
struct drm_gem_object *obj,
uint64_t *offset)
{
struct amdgpu_bo *rbo;
int r = 0;
uint32_t metadata[10]; /* Something that fits a descriptor + header. */
uint32_t size;
rbo = gem_to_amdgpu_bo(obj);
r = amdgpu_bo_reserve(rbo, false);
if (unlikely(r)) {
/* Don't show error message when returning -ERESTARTSYS */
if (r != -ERESTARTSYS)
DRM_ERROR("Unable to reserve buffer: %d\n", r);
return r;
}
r = amdgpu_bo_get_metadata(rbo, metadata, sizeof(metadata), &size, NULL);
amdgpu_bo_unreserve(rbo);
if (r)
return r;
/*
* The first word is the metadata version, and we need space for at least
* the version + pci vendor+device id + 8 words for a descriptor.
*/
if (size < 40 || metadata[0] != 1)
return -EINVAL;
if (adev->family >= AMDGPU_FAMILY_NV) {
/* resource word 6/7 META_DATA_ADDRESS{_LO} */
*offset = ((u64)metadata[9] << 16u) |
((metadata[8] & 0xFF000000u) >> 16);
} else {
/* resource word 5/7 META_DATA_ADDRESS */
*offset = ((u64)metadata[9] << 8u) |
((u64)(metadata[7] & 0x1FE0000u) << 23);
}
return 0;
}
static int convert_tiling_flags_to_modifier(struct amdgpu_framebuffer *afb)
{
struct amdgpu_device *adev = drm_to_adev(afb->base.dev);
uint64_t modifier = 0;
int num_pipes = 0;
int num_pkrs = 0;
num_pkrs = adev->gfx.config.gb_addr_config_fields.num_pkrs;
num_pipes = adev->gfx.config.gb_addr_config_fields.num_pipes;
if (!afb->tiling_flags || !AMDGPU_TILING_GET(afb->tiling_flags, SWIZZLE_MODE)) {
modifier = DRM_FORMAT_MOD_LINEAR;
} else {
int swizzle = AMDGPU_TILING_GET(afb->tiling_flags, SWIZZLE_MODE);
bool has_xor = swizzle >= 16;
int block_size_bits;
int version;
int pipe_xor_bits = 0;
int bank_xor_bits = 0;
int packers = 0;
int rb = 0;
int pipes = ilog2(num_pipes);
uint32_t dcc_offset = AMDGPU_TILING_GET(afb->tiling_flags, DCC_OFFSET_256B);
switch (swizzle >> 2) {
case 0: /* 256B */
block_size_bits = 8;
break;
case 1: /* 4KiB */
case 5: /* 4KiB _X */
block_size_bits = 12;
break;
case 2: /* 64KiB */
case 4: /* 64 KiB _T */
case 6: /* 64 KiB _X */
block_size_bits = 16;
break;
case 7: /* 256 KiB */
block_size_bits = 18;
break;
default:
/* RESERVED or VAR */
return -EINVAL;
}
if (adev->ip_versions[GC_HWIP][0] >= IP_VERSION(11, 0, 0))
version = AMD_FMT_MOD_TILE_VER_GFX11;
else if (adev->ip_versions[GC_HWIP][0] >= IP_VERSION(10, 3, 0))
version = AMD_FMT_MOD_TILE_VER_GFX10_RBPLUS;
else if (adev->ip_versions[GC_HWIP][0] >= IP_VERSION(10, 0, 0))
version = AMD_FMT_MOD_TILE_VER_GFX10;
else
version = AMD_FMT_MOD_TILE_VER_GFX9;
switch (swizzle & 3) {
case 0: /* Z microtiling */
return -EINVAL;
case 1: /* S microtiling */
if (adev->ip_versions[GC_HWIP][0] < IP_VERSION(11, 0, 0)) {
if (!has_xor)
version = AMD_FMT_MOD_TILE_VER_GFX9;
}
break;
case 2:
if (adev->ip_versions[GC_HWIP][0] < IP_VERSION(11, 0, 0)) {
if (!has_xor && afb->base.format->cpp[0] != 4)
version = AMD_FMT_MOD_TILE_VER_GFX9;
}
break;
case 3:
break;
}
if (has_xor) {
if (num_pipes == num_pkrs && num_pkrs == 0) {
DRM_ERROR("invalid number of pipes and packers\n");
return -EINVAL;
}
switch (version) {
case AMD_FMT_MOD_TILE_VER_GFX11:
pipe_xor_bits = min(block_size_bits - 8, pipes);
packers = ilog2(adev->gfx.config.gb_addr_config_fields.num_pkrs);
break;
case AMD_FMT_MOD_TILE_VER_GFX10_RBPLUS:
pipe_xor_bits = min(block_size_bits - 8, pipes);
packers = min(block_size_bits - 8 - pipe_xor_bits,
ilog2(adev->gfx.config.gb_addr_config_fields.num_pkrs));
break;
case AMD_FMT_MOD_TILE_VER_GFX10:
pipe_xor_bits = min(block_size_bits - 8, pipes);
break;
case AMD_FMT_MOD_TILE_VER_GFX9:
rb = ilog2(adev->gfx.config.gb_addr_config_fields.num_se) +
ilog2(adev->gfx.config.gb_addr_config_fields.num_rb_per_se);
pipe_xor_bits = min(block_size_bits - 8, pipes +
ilog2(adev->gfx.config.gb_addr_config_fields.num_se));
bank_xor_bits = min(block_size_bits - 8 - pipe_xor_bits,
ilog2(adev->gfx.config.gb_addr_config_fields.num_banks));
break;
}
}
modifier = AMD_FMT_MOD |
AMD_FMT_MOD_SET(TILE, AMDGPU_TILING_GET(afb->tiling_flags, SWIZZLE_MODE)) |
AMD_FMT_MOD_SET(TILE_VERSION, version) |
AMD_FMT_MOD_SET(PIPE_XOR_BITS, pipe_xor_bits) |
AMD_FMT_MOD_SET(BANK_XOR_BITS, bank_xor_bits) |
AMD_FMT_MOD_SET(PACKERS, packers);
if (dcc_offset != 0) {
bool dcc_i64b = AMDGPU_TILING_GET(afb->tiling_flags, DCC_INDEPENDENT_64B) != 0;
bool dcc_i128b = version >= AMD_FMT_MOD_TILE_VER_GFX10_RBPLUS;
const struct drm_format_info *format_info;
u64 render_dcc_offset;
/* Enable constant encode on RAVEN2 and later. */
bool dcc_constant_encode = (adev->asic_type > CHIP_RAVEN ||
(adev->asic_type == CHIP_RAVEN &&
adev->external_rev_id >= 0x81)) &&
adev->ip_versions[GC_HWIP][0] < IP_VERSION(11, 0, 0);
int max_cblock_size = dcc_i64b ? AMD_FMT_MOD_DCC_BLOCK_64B :
dcc_i128b ? AMD_FMT_MOD_DCC_BLOCK_128B :
AMD_FMT_MOD_DCC_BLOCK_256B;
modifier |= AMD_FMT_MOD_SET(DCC, 1) |
AMD_FMT_MOD_SET(DCC_CONSTANT_ENCODE, dcc_constant_encode) |
AMD_FMT_MOD_SET(DCC_INDEPENDENT_64B, dcc_i64b) |
AMD_FMT_MOD_SET(DCC_INDEPENDENT_128B, dcc_i128b) |
AMD_FMT_MOD_SET(DCC_MAX_COMPRESSED_BLOCK, max_cblock_size);
afb->base.offsets[1] = dcc_offset * 256 + afb->base.offsets[0];
afb->base.pitches[1] =
AMDGPU_TILING_GET(afb->tiling_flags, DCC_PITCH_MAX) + 1;
/*
* If the userspace driver uses retiling the tiling flags do not contain
* info on the renderable DCC buffer. Luckily the opaque metadata contains
* the info so we can try to extract it. The kernel does not use this info
* but we should convert it to a modifier plane for getfb2, so the
* userspace driver that gets it doesn't have to juggle around another DCC
* plane internally.
*/
if (extract_render_dcc_offset(adev, afb->base.obj[0],
&render_dcc_offset) == 0 &&
render_dcc_offset != 0 &&
render_dcc_offset != afb->base.offsets[1] &&
render_dcc_offset < UINT_MAX) {
uint32_t dcc_block_bits; /* of base surface data */
modifier |= AMD_FMT_MOD_SET(DCC_RETILE, 1);
afb->base.offsets[2] = render_dcc_offset;
if (adev->family >= AMDGPU_FAMILY_NV) {
int extra_pipe = 0;
if ((adev->ip_versions[GC_HWIP][0] >= IP_VERSION(10, 3, 0)) &&
pipes == packers && pipes > 1)
extra_pipe = 1;
dcc_block_bits = max(20, 16 + pipes + extra_pipe);
} else {
modifier |= AMD_FMT_MOD_SET(RB, rb) |
AMD_FMT_MOD_SET(PIPE, pipes);
dcc_block_bits = max(20, 18 + rb);
}
dcc_block_bits -= ilog2(afb->base.format->cpp[0]);
afb->base.pitches[2] = ALIGN(afb->base.width,
1u << ((dcc_block_bits + 1) / 2));
}
format_info = amdgpu_lookup_format_info(afb->base.format->format,
modifier);
if (!format_info)
return -EINVAL;
afb->base.format = format_info;
}
}
afb->base.modifier = modifier;
afb->base.flags |= DRM_MODE_FB_MODIFIERS;
return 0;
}
/* Mirrors the is_displayable check in radeonsi's gfx6_compute_surface */
static int check_tiling_flags_gfx6(struct amdgpu_framebuffer *afb)
{
u64 micro_tile_mode;
/* Zero swizzle mode means linear */
if (AMDGPU_TILING_GET(afb->tiling_flags, SWIZZLE_MODE) == 0)
return 0;
micro_tile_mode = AMDGPU_TILING_GET(afb->tiling_flags, MICRO_TILE_MODE);
switch (micro_tile_mode) {
case 0: /* DISPLAY */
case 3: /* RENDER */
return 0;
default:
drm_dbg_kms(afb->base.dev,
"Micro tile mode %llu not supported for scanout\n",
micro_tile_mode);
return -EINVAL;
}
}
static void get_block_dimensions(unsigned int block_log2, unsigned int cpp,
unsigned int *width, unsigned int *height)
{
unsigned int cpp_log2 = ilog2(cpp);
unsigned int pixel_log2 = block_log2 - cpp_log2;
unsigned int width_log2 = (pixel_log2 + 1) / 2;
unsigned int height_log2 = pixel_log2 - width_log2;
*width = 1 << width_log2;
*height = 1 << height_log2;
}
static unsigned int get_dcc_block_size(uint64_t modifier, bool rb_aligned,
bool pipe_aligned)
{
unsigned int ver = AMD_FMT_MOD_GET(TILE_VERSION, modifier);
switch (ver) {
case AMD_FMT_MOD_TILE_VER_GFX9: {
/*
* TODO: for pipe aligned we may need to check the alignment of the
* total size of the surface, which may need to be bigger than the
* natural alignment due to some HW workarounds
*/
return max(10 + (rb_aligned ? (int)AMD_FMT_MOD_GET(RB, modifier) : 0), 12);
}
case AMD_FMT_MOD_TILE_VER_GFX10:
case AMD_FMT_MOD_TILE_VER_GFX10_RBPLUS:
case AMD_FMT_MOD_TILE_VER_GFX11: {
int pipes_log2 = AMD_FMT_MOD_GET(PIPE_XOR_BITS, modifier);
if (ver >= AMD_FMT_MOD_TILE_VER_GFX10_RBPLUS && pipes_log2 > 1 &&
AMD_FMT_MOD_GET(PACKERS, modifier) == pipes_log2)
++pipes_log2;
return max(8 + (pipe_aligned ? pipes_log2 : 0), 12);
}
default:
return 0;
}
}
static int amdgpu_display_verify_plane(struct amdgpu_framebuffer *rfb, int plane,
const struct drm_format_info *format,
unsigned int block_width, unsigned int block_height,
unsigned int block_size_log2)
{
unsigned int width = rfb->base.width /
((plane && plane < format->num_planes) ? format->hsub : 1);
unsigned int height = rfb->base.height /
((plane && plane < format->num_planes) ? format->vsub : 1);
unsigned int cpp = plane < format->num_planes ? format->cpp[plane] : 1;
unsigned int block_pitch = block_width * cpp;
unsigned int min_pitch = ALIGN(width * cpp, block_pitch);
unsigned int block_size = 1 << block_size_log2;
uint64_t size;
if (rfb->base.pitches[plane] % block_pitch) {
drm_dbg_kms(rfb->base.dev,
"pitch %d for plane %d is not a multiple of block pitch %d\n",
rfb->base.pitches[plane], plane, block_pitch);
return -EINVAL;
}
if (rfb->base.pitches[plane] < min_pitch) {
drm_dbg_kms(rfb->base.dev,
"pitch %d for plane %d is less than minimum pitch %d\n",
rfb->base.pitches[plane], plane, min_pitch);
return -EINVAL;
}
/* Force at least natural alignment. */
if (rfb->base.offsets[plane] % block_size) {
drm_dbg_kms(rfb->base.dev,
"offset 0x%x for plane %d is not a multiple of block pitch 0x%x\n",
rfb->base.offsets[plane], plane, block_size);
return -EINVAL;
}
size = rfb->base.offsets[plane] +
(uint64_t)rfb->base.pitches[plane] / block_pitch *
block_size * DIV_ROUND_UP(height, block_height);
if (rfb->base.obj[0]->size < size) {
drm_dbg_kms(rfb->base.dev,
"BO size 0x%zx is less than 0x%llx required for plane %d\n",
rfb->base.obj[0]->size, size, plane);
return -EINVAL;
}
return 0;
}
static int amdgpu_display_verify_sizes(struct amdgpu_framebuffer *rfb)
{
const struct drm_format_info *format_info = drm_format_info(rfb->base.format->format);
uint64_t modifier = rfb->base.modifier;
int ret;
unsigned int i, block_width, block_height, block_size_log2;
if (rfb->base.dev->mode_config.fb_modifiers_not_supported)
return 0;
for (i = 0; i < format_info->num_planes; ++i) {
if (modifier == DRM_FORMAT_MOD_LINEAR) {
block_width = 256 / format_info->cpp[i];
block_height = 1;
block_size_log2 = 8;
} else {
int swizzle = AMD_FMT_MOD_GET(TILE, modifier);
switch ((swizzle & ~3) + 1) {
case DC_SW_256B_S:
block_size_log2 = 8;
break;
case DC_SW_4KB_S:
case DC_SW_4KB_S_X:
block_size_log2 = 12;
break;
case DC_SW_64KB_S:
case DC_SW_64KB_S_T:
case DC_SW_64KB_S_X:
block_size_log2 = 16;
break;
case DC_SW_VAR_S_X:
block_size_log2 = 18;
break;
default:
drm_dbg_kms(rfb->base.dev,
"Swizzle mode with unknown block size: %d\n", swizzle);
return -EINVAL;
}
get_block_dimensions(block_size_log2, format_info->cpp[i],
&block_width, &block_height);
}
ret = amdgpu_display_verify_plane(rfb, i, format_info,
block_width, block_height, block_size_log2);
if (ret)
return ret;
}
if (AMD_FMT_MOD_GET(DCC, modifier)) {
if (AMD_FMT_MOD_GET(DCC_RETILE, modifier)) {
block_size_log2 = get_dcc_block_size(modifier, false, false);
get_block_dimensions(block_size_log2 + 8, format_info->cpp[0],
&block_width, &block_height);
ret = amdgpu_display_verify_plane(rfb, i, format_info,
block_width, block_height,
block_size_log2);
if (ret)
return ret;
++i;
block_size_log2 = get_dcc_block_size(modifier, true, true);
} else {
bool pipe_aligned = AMD_FMT_MOD_GET(DCC_PIPE_ALIGN, modifier);
block_size_log2 = get_dcc_block_size(modifier, true, pipe_aligned);
}
get_block_dimensions(block_size_log2 + 8, format_info->cpp[0],
&block_width, &block_height);
ret = amdgpu_display_verify_plane(rfb, i, format_info,
block_width, block_height, block_size_log2);
if (ret)
return ret;
}
return 0;
}
static int amdgpu_display_get_fb_info(const struct amdgpu_framebuffer *amdgpu_fb,
uint64_t *tiling_flags, bool *tmz_surface)
{
struct amdgpu_bo *rbo;
int r;
if (!amdgpu_fb) {
*tiling_flags = 0;
*tmz_surface = false;
return 0;
}
rbo = gem_to_amdgpu_bo(amdgpu_fb->base.obj[0]);
r = amdgpu_bo_reserve(rbo, false);
if (unlikely(r)) {
/* Don't show error message when returning -ERESTARTSYS */
if (r != -ERESTARTSYS)
DRM_ERROR("Unable to reserve buffer: %d\n", r);
return r;
}
if (tiling_flags)
amdgpu_bo_get_tiling_flags(rbo, tiling_flags);
if (tmz_surface)
*tmz_surface = amdgpu_bo_encrypted(rbo);
amdgpu_bo_unreserve(rbo);
return r;
}
static int amdgpu_display_gem_fb_verify_and_init(struct drm_device *dev,
struct amdgpu_framebuffer *rfb,
struct drm_file *file_priv,
const struct drm_mode_fb_cmd2 *mode_cmd,
struct drm_gem_object *obj)
{
int ret;
rfb->base.obj[0] = obj;
drm_helper_mode_fill_fb_struct(dev, &rfb->base, mode_cmd);
/* Verify that the modifier is supported. */
if (!drm_any_plane_has_format(dev, mode_cmd->pixel_format,
mode_cmd->modifier[0])) {
drm_dbg_kms(dev,
"unsupported pixel format %p4cc / modifier 0x%llx\n",
&mode_cmd->pixel_format, mode_cmd->modifier[0]);
ret = -EINVAL;
goto err;
}
ret = amdgpu_display_framebuffer_init(dev, rfb, mode_cmd, obj);
if (ret)
goto err;
if (drm_drv_uses_atomic_modeset(dev))
ret = drm_framebuffer_init(dev, &rfb->base,
&amdgpu_fb_funcs_atomic);
else
ret = drm_framebuffer_init(dev, &rfb->base, &amdgpu_fb_funcs);
if (ret)
goto err;
return 0;
err:
drm_dbg_kms(dev, "Failed to verify and init gem fb: %d\n", ret);
rfb->base.obj[0] = NULL;
return ret;
}
static int amdgpu_display_framebuffer_init(struct drm_device *dev,
struct amdgpu_framebuffer *rfb,
const struct drm_mode_fb_cmd2 *mode_cmd,
struct drm_gem_object *obj)
{
struct amdgpu_device *adev = drm_to_adev(dev);
int ret, i;
/*
* This needs to happen before modifier conversion as that might change
* the number of planes.
*/
for (i = 1; i < rfb->base.format->num_planes; ++i) {
if (mode_cmd->handles[i] != mode_cmd->handles[0]) {
drm_dbg_kms(dev, "Plane 0 and %d have different BOs: %u vs. %u\n",
i, mode_cmd->handles[0], mode_cmd->handles[i]);
ret = -EINVAL;
return ret;
}
}
ret = amdgpu_display_get_fb_info(rfb, &rfb->tiling_flags, &rfb->tmz_surface);
if (ret)
return ret;
if (dev->mode_config.fb_modifiers_not_supported && !adev->enable_virtual_display) {
drm_WARN_ONCE(dev, adev->family >= AMDGPU_FAMILY_AI,
"GFX9+ requires FB check based on format modifier\n");
ret = check_tiling_flags_gfx6(rfb);
if (ret)
return ret;
}
if (!dev->mode_config.fb_modifiers_not_supported &&
!(rfb->base.flags & DRM_MODE_FB_MODIFIERS)) {
ret = convert_tiling_flags_to_modifier(rfb);
if (ret) {
drm_dbg_kms(dev, "Failed to convert tiling flags 0x%llX to a modifier",
rfb->tiling_flags);
return ret;
}
}
ret = amdgpu_display_verify_sizes(rfb);
if (ret)
return ret;
for (i = 0; i < rfb->base.format->num_planes; ++i) {
drm_gem_object_get(rfb->base.obj[0]);
rfb->base.obj[i] = rfb->base.obj[0];
}
return 0;
}
struct drm_framebuffer *
amdgpu_display_user_framebuffer_create(struct drm_device *dev,
struct drm_file *file_priv,
const struct drm_mode_fb_cmd2 *mode_cmd)
{
struct amdgpu_framebuffer *amdgpu_fb;
struct drm_gem_object *obj;
struct amdgpu_bo *bo;
uint32_t domains;
int ret;
obj = drm_gem_object_lookup(file_priv, mode_cmd->handles[0]);
if (obj == NULL) {
drm_dbg_kms(dev, "No GEM object associated to handle 0x%08X, "
"can't create framebuffer\n", mode_cmd->handles[0]);
return ERR_PTR(-ENOENT);
}
/* Handle is imported dma-buf, so cannot be migrated to VRAM for scanout */
bo = gem_to_amdgpu_bo(obj);
domains = amdgpu_display_supported_domains(drm_to_adev(dev), bo->flags);
if (obj->import_attach && !(domains & AMDGPU_GEM_DOMAIN_GTT)) {
drm_dbg_kms(dev, "Cannot create framebuffer from imported dma_buf\n");
drm_gem_object_put(obj);
return ERR_PTR(-EINVAL);
}
amdgpu_fb = kzalloc(sizeof(*amdgpu_fb), GFP_KERNEL);
if (amdgpu_fb == NULL) {
drm_gem_object_put(obj);
return ERR_PTR(-ENOMEM);
}
ret = amdgpu_display_gem_fb_verify_and_init(dev, amdgpu_fb, file_priv,
mode_cmd, obj);
if (ret) {
kfree(amdgpu_fb);
drm_gem_object_put(obj);
return ERR_PTR(ret);
}
drm_gem_object_put(obj);
return &amdgpu_fb->base;
}
const struct drm_mode_config_funcs amdgpu_mode_funcs = {
.fb_create = amdgpu_display_user_framebuffer_create,
};
static const struct drm_prop_enum_list amdgpu_underscan_enum_list[] =
{ { UNDERSCAN_OFF, "off" },
{ UNDERSCAN_ON, "on" },
{ UNDERSCAN_AUTO, "auto" },
};
static const struct drm_prop_enum_list amdgpu_audio_enum_list[] =
{ { AMDGPU_AUDIO_DISABLE, "off" },
{ AMDGPU_AUDIO_ENABLE, "on" },
{ AMDGPU_AUDIO_AUTO, "auto" },
};
/* XXX support different dither options? spatial, temporal, both, etc. */
static const struct drm_prop_enum_list amdgpu_dither_enum_list[] =
{ { AMDGPU_FMT_DITHER_DISABLE, "off" },
{ AMDGPU_FMT_DITHER_ENABLE, "on" },
};
int amdgpu_display_modeset_create_props(struct amdgpu_device *adev)
{
int sz;
adev->mode_info.coherent_mode_property =
drm_property_create_range(adev_to_drm(adev), 0, "coherent", 0, 1);
if (!adev->mode_info.coherent_mode_property)
return -ENOMEM;
adev->mode_info.load_detect_property =
drm_property_create_range(adev_to_drm(adev), 0, "load detection", 0, 1);
if (!adev->mode_info.load_detect_property)
return -ENOMEM;
drm_mode_create_scaling_mode_property(adev_to_drm(adev));
sz = ARRAY_SIZE(amdgpu_underscan_enum_list);
adev->mode_info.underscan_property =
drm_property_create_enum(adev_to_drm(adev), 0,
"underscan",
amdgpu_underscan_enum_list, sz);
adev->mode_info.underscan_hborder_property =
drm_property_create_range(adev_to_drm(adev), 0,
"underscan hborder", 0, 128);
if (!adev->mode_info.underscan_hborder_property)
return -ENOMEM;
adev->mode_info.underscan_vborder_property =
drm_property_create_range(adev_to_drm(adev), 0,
"underscan vborder", 0, 128);
if (!adev->mode_info.underscan_vborder_property)
return -ENOMEM;
sz = ARRAY_SIZE(amdgpu_audio_enum_list);
adev->mode_info.audio_property =
drm_property_create_enum(adev_to_drm(adev), 0,
"audio",
amdgpu_audio_enum_list, sz);
sz = ARRAY_SIZE(amdgpu_dither_enum_list);
adev->mode_info.dither_property =
drm_property_create_enum(adev_to_drm(adev), 0,
"dither",
amdgpu_dither_enum_list, sz);
if (amdgpu_device_has_dc_support(adev)) {
adev->mode_info.abm_level_property =
drm_property_create_range(adev_to_drm(adev), 0,
"abm level", 0, 4);
if (!adev->mode_info.abm_level_property)
return -ENOMEM;
}
return 0;
}
void amdgpu_display_update_priority(struct amdgpu_device *adev)
{
/* adjustment options for the display watermarks */
if ((amdgpu_disp_priority == 0) || (amdgpu_disp_priority > 2))
adev->mode_info.disp_priority = 0;
else
adev->mode_info.disp_priority = amdgpu_disp_priority;
}
static bool amdgpu_display_is_hdtv_mode(const struct drm_display_mode *mode)
{
/* try and guess if this is a tv or a monitor */
if ((mode->vdisplay == 480 && mode->hdisplay == 720) || /* 480p */
(mode->vdisplay == 576) || /* 576p */
(mode->vdisplay == 720) || /* 720p */
(mode->vdisplay == 1080)) /* 1080p */
return true;
else
return false;
}
bool amdgpu_display_crtc_scaling_mode_fixup(struct drm_crtc *crtc,
const struct drm_display_mode *mode,
struct drm_display_mode *adjusted_mode)
{
struct drm_device *dev = crtc->dev;
struct drm_encoder *encoder;
struct amdgpu_crtc *amdgpu_crtc = to_amdgpu_crtc(crtc);
struct amdgpu_encoder *amdgpu_encoder;
struct drm_connector *connector;
u32 src_v = 1, dst_v = 1;
u32 src_h = 1, dst_h = 1;
amdgpu_crtc->h_border = 0;
amdgpu_crtc->v_border = 0;
list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) {
if (encoder->crtc != crtc)
continue;
amdgpu_encoder = to_amdgpu_encoder(encoder);
connector = amdgpu_get_connector_for_encoder(encoder);
/* set scaling */
if (amdgpu_encoder->rmx_type == RMX_OFF)
amdgpu_crtc->rmx_type = RMX_OFF;
else if (mode->hdisplay < amdgpu_encoder->native_mode.hdisplay ||
mode->vdisplay < amdgpu_encoder->native_mode.vdisplay)
amdgpu_crtc->rmx_type = amdgpu_encoder->rmx_type;
else
amdgpu_crtc->rmx_type = RMX_OFF;
/* copy native mode */
memcpy(&amdgpu_crtc->native_mode,
&amdgpu_encoder->native_mode,
sizeof(struct drm_display_mode));
src_v = crtc->mode.vdisplay;
dst_v = amdgpu_crtc->native_mode.vdisplay;
src_h = crtc->mode.hdisplay;
dst_h = amdgpu_crtc->native_mode.hdisplay;
/* fix up for overscan on hdmi */
if ((!(mode->flags & DRM_MODE_FLAG_INTERLACE)) &&
((amdgpu_encoder->underscan_type == UNDERSCAN_ON) ||
((amdgpu_encoder->underscan_type == UNDERSCAN_AUTO) &&
connector->display_info.is_hdmi &&
amdgpu_display_is_hdtv_mode(mode)))) {
if (amdgpu_encoder->underscan_hborder != 0)
amdgpu_crtc->h_border = amdgpu_encoder->underscan_hborder;
else
amdgpu_crtc->h_border = (mode->hdisplay >> 5) + 16;
if (amdgpu_encoder->underscan_vborder != 0)
amdgpu_crtc->v_border = amdgpu_encoder->underscan_vborder;
else
amdgpu_crtc->v_border = (mode->vdisplay >> 5) + 16;
amdgpu_crtc->rmx_type = RMX_FULL;
src_v = crtc->mode.vdisplay;
dst_v = crtc->mode.vdisplay - (amdgpu_crtc->v_border * 2);
src_h = crtc->mode.hdisplay;
dst_h = crtc->mode.hdisplay - (amdgpu_crtc->h_border * 2);
}
}
if (amdgpu_crtc->rmx_type != RMX_OFF) {
fixed20_12 a, b;
a.full = dfixed_const(src_v);
b.full = dfixed_const(dst_v);
amdgpu_crtc->vsc.full = dfixed_div(a, b);
a.full = dfixed_const(src_h);
b.full = dfixed_const(dst_h);
amdgpu_crtc->hsc.full = dfixed_div(a, b);
} else {
amdgpu_crtc->vsc.full = dfixed_const(1);
amdgpu_crtc->hsc.full = dfixed_const(1);
}
return true;
}
/*
* Retrieve current video scanout position of crtc on a given gpu, and
* an optional accurate timestamp of when query happened.
*
* \param dev Device to query.
* \param pipe Crtc to query.
* \param flags Flags from caller (DRM_CALLED_FROM_VBLIRQ or 0).
* For driver internal use only also supports these flags:
*
* USE_REAL_VBLANKSTART to use the real start of vblank instead
* of a fudged earlier start of vblank.
*
* GET_DISTANCE_TO_VBLANKSTART to return distance to the
* fudged earlier start of vblank in *vpos and the distance
* to true start of vblank in *hpos.
*
* \param *vpos Location where vertical scanout position should be stored.
* \param *hpos Location where horizontal scanout position should go.
* \param *stime Target location for timestamp taken immediately before
* scanout position query. Can be NULL to skip timestamp.
* \param *etime Target location for timestamp taken immediately after
* scanout position query. Can be NULL to skip timestamp.
*
* Returns vpos as a positive number while in active scanout area.
* Returns vpos as a negative number inside vblank, counting the number
* of scanlines to go until end of vblank, e.g., -1 means "one scanline
* until start of active scanout / end of vblank."
*
* \return Flags, or'ed together as follows:
*
* DRM_SCANOUTPOS_VALID = Query successful.
* DRM_SCANOUTPOS_INVBL = Inside vblank.
* DRM_SCANOUTPOS_ACCURATE = Returned position is accurate. A lack of
* this flag means that returned position may be offset by a constant but
* unknown small number of scanlines wrt. real scanout position.
*
*/
int amdgpu_display_get_crtc_scanoutpos(struct drm_device *dev,
unsigned int pipe, unsigned int flags, int *vpos,
int *hpos, ktime_t *stime, ktime_t *etime,
const struct drm_display_mode *mode)
{
u32 vbl = 0, position = 0;
int vbl_start, vbl_end, vtotal, ret = 0;
bool in_vbl = true;
struct amdgpu_device *adev = drm_to_adev(dev);
/* preempt_disable_rt() should go right here in PREEMPT_RT patchset. */
/* Get optional system timestamp before query. */
if (stime)
*stime = ktime_get();
if (amdgpu_display_page_flip_get_scanoutpos(adev, pipe, &vbl, &position) == 0)
ret |= DRM_SCANOUTPOS_VALID;
/* Get optional system timestamp after query. */
if (etime)
*etime = ktime_get();
/* preempt_enable_rt() should go right here in PREEMPT_RT patchset. */
/* Decode into vertical and horizontal scanout position. */
*vpos = position & 0x1fff;
*hpos = (position >> 16) & 0x1fff;
/* Valid vblank area boundaries from gpu retrieved? */
if (vbl > 0) {
/* Yes: Decode. */
ret |= DRM_SCANOUTPOS_ACCURATE;
vbl_start = vbl & 0x1fff;
vbl_end = (vbl >> 16) & 0x1fff;
}
else {
/* No: Fake something reasonable which gives at least ok results. */
vbl_start = mode->crtc_vdisplay;
vbl_end = 0;
}
/* Called from driver internal vblank counter query code? */
if (flags & GET_DISTANCE_TO_VBLANKSTART) {
/* Caller wants distance from real vbl_start in *hpos */
*hpos = *vpos - vbl_start;
}
/* Fudge vblank to start a few scanlines earlier to handle the
* problem that vblank irqs fire a few scanlines before start
* of vblank. Some driver internal callers need the true vblank
* start to be used and signal this via the USE_REAL_VBLANKSTART flag.
*
* The cause of the "early" vblank irq is that the irq is triggered
* by the line buffer logic when the line buffer read position enters
* the vblank, whereas our crtc scanout position naturally lags the
* line buffer read position.
*/
if (!(flags & USE_REAL_VBLANKSTART))
vbl_start -= adev->mode_info.crtcs[pipe]->lb_vblank_lead_lines;
/* Test scanout position against vblank region. */
if ((*vpos < vbl_start) && (*vpos >= vbl_end))
in_vbl = false;
/* In vblank? */
if (in_vbl)
ret |= DRM_SCANOUTPOS_IN_VBLANK;
/* Called from driver internal vblank counter query code? */
if (flags & GET_DISTANCE_TO_VBLANKSTART) {
/* Caller wants distance from fudged earlier vbl_start */
*vpos -= vbl_start;
return ret;
}
/* Check if inside vblank area and apply corrective offsets:
* vpos will then be >=0 in video scanout area, but negative
* within vblank area, counting down the number of lines until
* start of scanout.
*/
/* Inside "upper part" of vblank area? Apply corrective offset if so: */
if (in_vbl && (*vpos >= vbl_start)) {
vtotal = mode->crtc_vtotal;
/* With variable refresh rate displays the vpos can exceed
* the vtotal value. Clamp to 0 to return -vbl_end instead
* of guessing the remaining number of lines until scanout.
*/
*vpos = (*vpos < vtotal) ? (*vpos - vtotal) : 0;
}
/* Correct for shifted end of vbl at vbl_end. */
*vpos = *vpos - vbl_end;
return ret;
}
int amdgpu_display_crtc_idx_to_irq_type(struct amdgpu_device *adev, int crtc)
{
if (crtc < 0 || crtc >= adev->mode_info.num_crtc)
return AMDGPU_CRTC_IRQ_NONE;
switch (crtc) {
case 0:
return AMDGPU_CRTC_IRQ_VBLANK1;
case 1:
return AMDGPU_CRTC_IRQ_VBLANK2;
case 2:
return AMDGPU_CRTC_IRQ_VBLANK3;
case 3:
return AMDGPU_CRTC_IRQ_VBLANK4;
case 4:
return AMDGPU_CRTC_IRQ_VBLANK5;
case 5:
return AMDGPU_CRTC_IRQ_VBLANK6;
default:
return AMDGPU_CRTC_IRQ_NONE;
}
}
bool amdgpu_crtc_get_scanout_position(struct drm_crtc *crtc,
bool in_vblank_irq, int *vpos,
int *hpos, ktime_t *stime, ktime_t *etime,
const struct drm_display_mode *mode)
{
struct drm_device *dev = crtc->dev;
unsigned int pipe = crtc->index;
return amdgpu_display_get_crtc_scanoutpos(dev, pipe, 0, vpos, hpos,
stime, etime, mode);
}
static bool
amdgpu_display_robj_is_fb(struct amdgpu_device *adev, struct amdgpu_bo *robj)
{
struct drm_device *dev = adev_to_drm(adev);
struct drm_fb_helper *fb_helper = dev->fb_helper;
if (!fb_helper || !fb_helper->buffer)
return false;
if (gem_to_amdgpu_bo(fb_helper->buffer->gem) != robj)
return false;
return true;
}
int amdgpu_display_suspend_helper(struct amdgpu_device *adev)
{
struct drm_device *dev = adev_to_drm(adev);
struct drm_crtc *crtc;
struct drm_connector *connector;
struct drm_connector_list_iter iter;
int r;
/* turn off display hw */
drm_modeset_lock_all(dev);
drm_connector_list_iter_begin(dev, &iter);
drm_for_each_connector_iter(connector, &iter)
drm_helper_connector_dpms(connector,
DRM_MODE_DPMS_OFF);
drm_connector_list_iter_end(&iter);
drm_modeset_unlock_all(dev);
/* unpin the front buffers and cursors */
list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
struct amdgpu_crtc *amdgpu_crtc = to_amdgpu_crtc(crtc);
struct drm_framebuffer *fb = crtc->primary->fb;
struct amdgpu_bo *robj;
if (amdgpu_crtc->cursor_bo && !adev->enable_virtual_display) {
struct amdgpu_bo *aobj = gem_to_amdgpu_bo(amdgpu_crtc->cursor_bo);
r = amdgpu_bo_reserve(aobj, true);
if (r == 0) {
amdgpu_bo_unpin(aobj);
amdgpu_bo_unreserve(aobj);
}
}
if (fb == NULL || fb->obj[0] == NULL) {
continue;
}
robj = gem_to_amdgpu_bo(fb->obj[0]);
if (!amdgpu_display_robj_is_fb(adev, robj)) {
r = amdgpu_bo_reserve(robj, true);
if (r == 0) {
amdgpu_bo_unpin(robj);
amdgpu_bo_unreserve(robj);
}
}
}
return 0;
}
int amdgpu_display_resume_helper(struct amdgpu_device *adev)
{
struct drm_device *dev = adev_to_drm(adev);
struct drm_connector *connector;
struct drm_connector_list_iter iter;
struct drm_crtc *crtc;
int r;
/* pin cursors */
list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
struct amdgpu_crtc *amdgpu_crtc = to_amdgpu_crtc(crtc);
if (amdgpu_crtc->cursor_bo && !adev->enable_virtual_display) {
struct amdgpu_bo *aobj = gem_to_amdgpu_bo(amdgpu_crtc->cursor_bo);
r = amdgpu_bo_reserve(aobj, true);
if (r == 0) {
r = amdgpu_bo_pin(aobj, AMDGPU_GEM_DOMAIN_VRAM);
if (r != 0)
dev_err(adev->dev, "Failed to pin cursor BO (%d)\n", r);
amdgpu_crtc->cursor_addr = amdgpu_bo_gpu_offset(aobj);
amdgpu_bo_unreserve(aobj);
}
}
}
drm_helper_resume_force_mode(dev);
/* turn on display hw */
drm_modeset_lock_all(dev);
drm_connector_list_iter_begin(dev, &iter);
drm_for_each_connector_iter(connector, &iter)
drm_helper_connector_dpms(connector,
DRM_MODE_DPMS_ON);
drm_connector_list_iter_end(&iter);
drm_modeset_unlock_all(dev);
return 0;
}