microsoft
/
WSL2-Linux-Kernel
зеркало из https://github.com/microsoft/WSL2-Linux-Kernel.git
1
0
Форкнуть 0
Код Задачи Пакеты Проекты Релизы Вики Активность

drm/tegra: Changes for v3.19-rc1 

The highlights in this pull request are:
 
   * IOMMU support: The Tegra DRM driver can now deal with discontiguous
     buffers if an IOMMU exists in the system. That means it can allocate
     using drm_gem_get_pages() and will map them into IOVA space via the
     IOMMU API. Similarly, non-contiguous PRIME buffers can be imported
     from a different driver, which allows better integration with gk20a
     (nouveau) and less hacks.
 
   * Universal planes: This is precursory work for atomic modesetting and
     will allow hardware cursor support to be implemented on pre-Tegra114
     where RGB cursors were not supported.
 
   * DSI ganged-mode support: The DSI controller can now gang up with a
     second DSI controller to drive high resolution DSI panels.
 
 Besides those bigger changes there is a slew of fixes, cleanups, plugged
 memory leaks and so on.
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v2
 
 iQIcBAABAgAGBQJUZM29AAoJEN0jrNd/PrOhd1EP/iGBGppcPiYhFI6CC2V5IyGO
 j4GaNU656QQj0RNS3RH0Oby0oHdQum2rFNtHnkGYjoXFiSznId3OwVQ1+Y1s5804
 BkPSR1Q3fyIfsQdGA9DEkVGuyavCEbJ9yOalIBLda456nxfkPFBJdNjq5AJDT2N1
 J54MSRtV3fV5Uerd7WbmiNdLyuly4Gyyb7ApotOQEsfYvaGgobdpMRGyp38tvYbD
 pNDZ69iYBSJmaVaF1a/NxFw3/25CSHakY5J95R9eXK1Y3BKDBhqHo7b1L1XMt1L5
 yKEy+eqjnnB7/itszjKG3dnMHunKsch9C+nyxR4xKMf036Pesz65tMbg07Pd0cIy
 oYZMDGdm380d0mu41LydN7zK/ZZf6bBfcZallnxk1CSEQB6BcMZhOmQP2aa8r9rU
 VdaNGlNio7XAjVGDsd8Y652y27NH7VJTpx3nxXB0f7eyGg7AlfLKxOFehDE+beVJ
 OAzRQrHJ63vOIAUg21G84W4cvpsVSG4FomgRTXC8Se6WcwP3TWD5MmOzLYNjbFnb
 ayuIiIfNtyu2KJU60hCOqWQg05UcWIYRkvxmdnQQcFyItmw4qJzh9ep7ebAqTx0t
 0p0y5/O7KGYKS1pB7o1XJtL84N7SPiNGB3fdwiGryl9Z7hypuhKS7/lRBDTiiTAd
 Ok1HHSRDxTaiGhrN3TKH
 =v4QW
 -----END PGP SIGNATURE-----

Merge tag 'drm/tegra/for-3.19-rc1' of git://people.freedesktop.org/~tagr/linux into drm-next

drm/tegra: Changes for v3.19-rc1

The highlights in this pull request are:

  * IOMMU support: The Tegra DRM driver can now deal with discontiguous
    buffers if an IOMMU exists in the system. That means it can allocate
    using drm_gem_get_pages() and will map them into IOVA space via the
    IOMMU API. Similarly, non-contiguous PRIME buffers can be imported
    from a different driver, which allows better integration with gk20a
    (nouveau) and less hacks.

  * Universal planes: This is precursory work for atomic modesetting and
    will allow hardware cursor support to be implemented on pre-Tegra114
    where RGB cursors were not supported.

  * DSI ganged-mode support: The DSI controller can now gang up with a
    second DSI controller to drive high resolution DSI panels.

Besides those bigger changes there is a slew of fixes, cleanups, plugged
memory leaks and so on.

* tag 'drm/tegra/for-3.19-rc1' of git://people.freedesktop.org/~tagr/linux: (44 commits)
  drm/tegra: gem: Check before freeing CMA memory
  drm/tegra: fb: Add error codes to error messages
  drm/tegra: fb: Properly release GEM objects on failure
  drm/tegra: Detach panel when a connector is removed
  drm/tegra: Plug memory leak
  drm/tegra: gem: Use more consistent data types
  drm/tegra: fb: Do not destroy framebuffer
  drm/tegra: gem: dumb: pitch and size are outputs
  drm/tegra: Enable the hotplug interrupt only when necessary
  drm/tegra: dc: Universal plane support
  drm/tegra: dc: Registers are 32 bits wide
  drm/tegra: dc: Factor out DC, window and cursor commit
  drm/tegra: Add IOMMU support
  drm/tegra: Fix error handling cleanup
  drm/tegra: gem: Use dma_mmap_writecombine()
  drm/tegra: gem: Remove redundant drm_gem_free_mmap_offset()
  drm/tegra: gem: Cleanup tegra_bo_create_with_handle()
  drm/tegra: gem: Extract tegra_bo_alloc_object()
  drm/tegra: dsi: Set up PHY_TIMING & BTA_TIMING registers earlier
  drm/tegra: dsi: Replace 1000000 by USEC_PER_SEC
  ...
This commit is contained in:
Dave Airlie 2014-11-15 09:38:55 +10:00
Родитель 4fb2ac6ebe 7e0180e357
Коммит b0654103f5
19 изменённых файлов: 1679 добавлений и 482 удалений
Показать статистику Скачать Patch файл Скачать Diff файл Показать все файлы Свернуть все файлы

2
Documentation/devicetree/bindings/gpu/nvidia,tegra20-host1x.txt
Просмотреть файл

@ -191,6 +191,8 @@ of the following host1x client modules:
- nvidia,hpd-gpio: specifies a GPIO used for hotplug detection
- nvidia,edid: supplies a binary EDID blob
- nvidia,panel: phandle of a display panel
- nvidia,ganged-mode: contains a phandle to a second DSI controller to gang
up with in order to support up to 8 data lanes
- sor: serial output resource

1
drivers/gpu/drm/tegra/Kconfig
Просмотреть файл

@ -1,6 +1,7 @@
config DRM_TEGRA
tristate "NVIDIA Tegra DRM"
depends on ARCH_TEGRA || (ARM && COMPILE_TEST)
depends on COMMON_CLK
depends on DRM
depends on RESET_CONTROLLER
select DRM_KMS_HELPER

593
drivers/gpu/drm/tegra/dc.c
Просмотреть файл

@ -9,8 +9,11 @@
#include <linux/clk.h>
#include <linux/debugfs.h>
#include <linux/iommu.h>
#include <linux/reset.h>
#include <soc/tegra/pmc.h>
#include "dc.h"
#include "drm.h"
#include "gem.h"
@ -22,6 +25,7 @@ struct tegra_dc_soc_info {
bool supports_cursor;
bool supports_block_linear;
unsigned int pitch_align;
bool has_powergate;
};
struct tegra_plane {
@ -34,6 +38,26 @@ static inline struct tegra_plane *to_tegra_plane(struct drm_plane *plane)
return container_of(plane, struct tegra_plane, base);
}
static void tegra_dc_window_commit(struct tegra_dc *dc, unsigned int index)
{
u32 value = WIN_A_ACT_REQ << index;
tegra_dc_writel(dc, value << 8, DC_CMD_STATE_CONTROL);
tegra_dc_writel(dc, value, DC_CMD_STATE_CONTROL);
}
static void tegra_dc_cursor_commit(struct tegra_dc *dc)
{
tegra_dc_writel(dc, CURSOR_ACT_REQ << 8, DC_CMD_STATE_CONTROL);
tegra_dc_writel(dc, CURSOR_ACT_REQ, DC_CMD_STATE_CONTROL);
}
static void tegra_dc_commit(struct tegra_dc *dc)
{
tegra_dc_writel(dc, GENERAL_ACT_REQ << 8, DC_CMD_STATE_CONTROL);
tegra_dc_writel(dc, GENERAL_ACT_REQ, DC_CMD_STATE_CONTROL);
}
static unsigned int tegra_dc_format(uint32_t format, uint32_t *swap)
{
/* assume no swapping of fetched data */
@ -305,17 +329,260 @@ static int tegra_dc_setup_window(struct tegra_dc *dc, unsigned int index,
break;
}
tegra_dc_writel(dc, WIN_A_UPDATE << index, DC_CMD_STATE_CONTROL);
tegra_dc_writel(dc, WIN_A_ACT_REQ << index, DC_CMD_STATE_CONTROL);
tegra_dc_window_commit(dc, index);
return 0;
}
static int tegra_plane_update(struct drm_plane *plane, struct drm_crtc *crtc,
struct drm_framebuffer *fb, int crtc_x,
int crtc_y, unsigned int crtc_w,
unsigned int crtc_h, uint32_t src_x,
uint32_t src_y, uint32_t src_w, uint32_t src_h)
static int tegra_window_plane_disable(struct drm_plane *plane)
{
struct tegra_dc *dc = to_tegra_dc(plane->crtc);
struct tegra_plane *p = to_tegra_plane(plane);
u32 value;
if (!plane->crtc)
return 0;
value = WINDOW_A_SELECT << p->index;
tegra_dc_writel(dc, value, DC_CMD_DISPLAY_WINDOW_HEADER);
value = tegra_dc_readl(dc, DC_WIN_WIN_OPTIONS);
value &= ~WIN_ENABLE;
tegra_dc_writel(dc, value, DC_WIN_WIN_OPTIONS);
tegra_dc_window_commit(dc, p->index);
return 0;
}
static void tegra_plane_destroy(struct drm_plane *plane)
{
struct tegra_plane *p = to_tegra_plane(plane);
drm_plane_cleanup(plane);
kfree(p);
}
static const u32 tegra_primary_plane_formats[] = {
DRM_FORMAT_XBGR8888,
DRM_FORMAT_XRGB8888,
DRM_FORMAT_RGB565,
};
static int tegra_primary_plane_update(struct drm_plane *plane,
struct drm_crtc *crtc,
struct drm_framebuffer *fb, int crtc_x,
int crtc_y, unsigned int crtc_w,
unsigned int crtc_h, uint32_t src_x,
uint32_t src_y, uint32_t src_w,
uint32_t src_h)
{
struct tegra_bo *bo = tegra_fb_get_plane(fb, 0);
struct tegra_plane *p = to_tegra_plane(plane);
struct tegra_dc *dc = to_tegra_dc(crtc);
struct tegra_dc_window window;
int err;
memset(&window, 0, sizeof(window));
window.src.x = src_x >> 16;
window.src.y = src_y >> 16;
window.src.w = src_w >> 16;
window.src.h = src_h >> 16;
window.dst.x = crtc_x;
window.dst.y = crtc_y;
window.dst.w = crtc_w;
window.dst.h = crtc_h;
window.format = tegra_dc_format(fb->pixel_format, &window.swap);
window.bits_per_pixel = fb->bits_per_pixel;
window.bottom_up = tegra_fb_is_bottom_up(fb);
err = tegra_fb_get_tiling(fb, &window.tiling);
if (err < 0)
return err;
window.base[0] = bo->paddr + fb->offsets[0];
window.stride[0] = fb->pitches[0];
err = tegra_dc_setup_window(dc, p->index, &window);
if (err < 0)
return err;
return 0;
}
static void tegra_primary_plane_destroy(struct drm_plane *plane)
{
tegra_window_plane_disable(plane);
tegra_plane_destroy(plane);
}
static const struct drm_plane_funcs tegra_primary_plane_funcs = {
.update_plane = tegra_primary_plane_update,
.disable_plane = tegra_window_plane_disable,
.destroy = tegra_primary_plane_destroy,
};
static struct drm_plane *tegra_dc_primary_plane_create(struct drm_device *drm,
struct tegra_dc *dc)
{
struct tegra_plane *plane;
unsigned int num_formats;
const u32 *formats;
int err;
plane = kzalloc(sizeof(*plane), GFP_KERNEL);
if (!plane)
return ERR_PTR(-ENOMEM);
num_formats = ARRAY_SIZE(tegra_primary_plane_formats);
formats = tegra_primary_plane_formats;
err = drm_universal_plane_init(drm, &plane->base, 1 << dc->pipe,
&tegra_primary_plane_funcs, formats,
num_formats, DRM_PLANE_TYPE_PRIMARY);
if (err < 0) {
kfree(plane);
return ERR_PTR(err);
}
return &plane->base;
}
static const u32 tegra_cursor_plane_formats[] = {
DRM_FORMAT_RGBA8888,
};
static int tegra_cursor_plane_update(struct drm_plane *plane,
struct drm_crtc *crtc,
struct drm_framebuffer *fb, int crtc_x,
int crtc_y, unsigned int crtc_w,
unsigned int crtc_h, uint32_t src_x,
uint32_t src_y, uint32_t src_w,
uint32_t src_h)
{
struct tegra_bo *bo = tegra_fb_get_plane(fb, 0);
struct tegra_dc *dc = to_tegra_dc(crtc);
u32 value = CURSOR_CLIP_DISPLAY;
/* scaling not supported for cursor */
if ((src_w >> 16 != crtc_w) || (src_h >> 16 != crtc_h))
return -EINVAL;
/* only square cursors supported */
if (src_w != src_h)
return -EINVAL;
switch (crtc_w) {
case 32:
value |= CURSOR_SIZE_32x32;
break;
case 64:
value |= CURSOR_SIZE_64x64;
break;
case 128:
value |= CURSOR_SIZE_128x128;
break;
case 256:
value |= CURSOR_SIZE_256x256;
break;
default:
return -EINVAL;
}
value |= (bo->paddr >> 10) & 0x3fffff;
tegra_dc_writel(dc, value, DC_DISP_CURSOR_START_ADDR);
#ifdef CONFIG_ARCH_DMA_ADDR_T_64BIT
value = (bo->paddr >> 32) & 0x3;
tegra_dc_writel(dc, value, DC_DISP_CURSOR_START_ADDR_HI);
#endif
/* enable cursor and set blend mode */
value = tegra_dc_readl(dc, DC_DISP_DISP_WIN_OPTIONS);
value |= CURSOR_ENABLE;
tegra_dc_writel(dc, value, DC_DISP_DISP_WIN_OPTIONS);
value = tegra_dc_readl(dc, DC_DISP_BLEND_CURSOR_CONTROL);
value &= ~CURSOR_DST_BLEND_MASK;
value &= ~CURSOR_SRC_BLEND_MASK;
value |= CURSOR_MODE_NORMAL;
value |= CURSOR_DST_BLEND_NEG_K1_TIMES_SRC;
value |= CURSOR_SRC_BLEND_K1_TIMES_SRC;
value |= CURSOR_ALPHA;
tegra_dc_writel(dc, value, DC_DISP_BLEND_CURSOR_CONTROL);
/* position the cursor */
value = (crtc_y & 0x3fff) << 16 | (crtc_x & 0x3fff);
tegra_dc_writel(dc, value, DC_DISP_CURSOR_POSITION);
/* apply changes */
tegra_dc_cursor_commit(dc);
tegra_dc_commit(dc);
return 0;
}
static int tegra_cursor_plane_disable(struct drm_plane *plane)
{
struct tegra_dc *dc = to_tegra_dc(plane->crtc);
u32 value;
if (!plane->crtc)
return 0;
value = tegra_dc_readl(dc, DC_DISP_DISP_WIN_OPTIONS);
value &= ~CURSOR_ENABLE;
tegra_dc_writel(dc, value, DC_DISP_DISP_WIN_OPTIONS);
tegra_dc_cursor_commit(dc);
tegra_dc_commit(dc);
return 0;
}
static const struct drm_plane_funcs tegra_cursor_plane_funcs = {
.update_plane = tegra_cursor_plane_update,
.disable_plane = tegra_cursor_plane_disable,
.destroy = tegra_plane_destroy,
};
static struct drm_plane *tegra_dc_cursor_plane_create(struct drm_device *drm,
struct tegra_dc *dc)
{
struct tegra_plane *plane;
unsigned int num_formats;
const u32 *formats;
int err;
plane = kzalloc(sizeof(*plane), GFP_KERNEL);
if (!plane)
return ERR_PTR(-ENOMEM);
num_formats = ARRAY_SIZE(tegra_cursor_plane_formats);
formats = tegra_cursor_plane_formats;
err = drm_universal_plane_init(drm, &plane->base, 1 << dc->pipe,
&tegra_cursor_plane_funcs, formats,
num_formats, DRM_PLANE_TYPE_CURSOR);
if (err < 0) {
kfree(plane);
return ERR_PTR(err);
}
return &plane->base;
}
static int tegra_overlay_plane_update(struct drm_plane *plane,
struct drm_crtc *crtc,
struct drm_framebuffer *fb, int crtc_x,
int crtc_y, unsigned int crtc_w,
unsigned int crtc_h, uint32_t src_x,
uint32_t src_y, uint32_t src_w,
uint32_t src_h)
{
struct tegra_plane *p = to_tegra_plane(plane);
struct tegra_dc *dc = to_tegra_dc(crtc);
@ -361,44 +628,19 @@ static int tegra_plane_update(struct drm_plane *plane, struct drm_crtc *crtc,
return tegra_dc_setup_window(dc, p->index, &window);
}
static int tegra_plane_disable(struct drm_plane *plane)
static void tegra_overlay_plane_destroy(struct drm_plane *plane)
{
struct tegra_dc *dc = to_tegra_dc(plane->crtc);
struct tegra_plane *p = to_tegra_plane(plane);
unsigned long value;
if (!plane->crtc)
return 0;
value = WINDOW_A_SELECT << p->index;
tegra_dc_writel(dc, value, DC_CMD_DISPLAY_WINDOW_HEADER);
value = tegra_dc_readl(dc, DC_WIN_WIN_OPTIONS);
value &= ~WIN_ENABLE;
tegra_dc_writel(dc, value, DC_WIN_WIN_OPTIONS);
tegra_dc_writel(dc, WIN_A_UPDATE << p->index, DC_CMD_STATE_CONTROL);
tegra_dc_writel(dc, WIN_A_ACT_REQ << p->index, DC_CMD_STATE_CONTROL);
return 0;
tegra_window_plane_disable(plane);
tegra_plane_destroy(plane);
}
static void tegra_plane_destroy(struct drm_plane *plane)
{
struct tegra_plane *p = to_tegra_plane(plane);
tegra_plane_disable(plane);
drm_plane_cleanup(plane);
kfree(p);
}
static const struct drm_plane_funcs tegra_plane_funcs = {
.update_plane = tegra_plane_update,
.disable_plane = tegra_plane_disable,
.destroy = tegra_plane_destroy,
static const struct drm_plane_funcs tegra_overlay_plane_funcs = {
.update_plane = tegra_overlay_plane_update,
.disable_plane = tegra_window_plane_disable,
.destroy = tegra_overlay_plane_destroy,
};
static const uint32_t plane_formats[] = {
static const uint32_t tegra_overlay_plane_formats[] = {
DRM_FORMAT_XBGR8888,
DRM_FORMAT_XRGB8888,
DRM_FORMAT_RGB565,
@ -408,27 +650,44 @@ static const uint32_t plane_formats[] = {
DRM_FORMAT_YUV422,
};
static struct drm_plane *tegra_dc_overlay_plane_create(struct drm_device *drm,
struct tegra_dc *dc,
unsigned int index)
{
struct tegra_plane *plane;
unsigned int num_formats;
const u32 *formats;
int err;
plane = kzalloc(sizeof(*plane), GFP_KERNEL);
if (!plane)
return ERR_PTR(-ENOMEM);
plane->index = index;
num_formats = ARRAY_SIZE(tegra_overlay_plane_formats);
formats = tegra_overlay_plane_formats;
err = drm_universal_plane_init(drm, &plane->base, 1 << dc->pipe,
&tegra_overlay_plane_funcs, formats,
num_formats, DRM_PLANE_TYPE_OVERLAY);
if (err < 0) {
kfree(plane);
return ERR_PTR(err);
}
return &plane->base;
}
static int tegra_dc_add_planes(struct drm_device *drm, struct tegra_dc *dc)
{
struct drm_plane *plane;
unsigned int i;
int err = 0;
for (i = 0; i < 2; i++) {
struct tegra_plane *plane;
plane = kzalloc(sizeof(*plane), GFP_KERNEL);
if (!plane)
return -ENOMEM;
plane->index = 1 + i;
err = drm_plane_init(drm, &plane->base, 1 << dc->pipe,
&tegra_plane_funcs, plane_formats,
ARRAY_SIZE(plane_formats), false);
if (err < 0) {
kfree(plane);
return err;
}
plane = tegra_dc_overlay_plane_create(drm, dc, 1 + i);
if (IS_ERR(plane))
return PTR_ERR(plane);
}
return 0;
@ -515,10 +774,8 @@ static int tegra_dc_set_base(struct tegra_dc *dc, int x, int y,
tegra_dc_writel(dc, h_offset, DC_WINBUF_ADDR_H_OFFSET);
tegra_dc_writel(dc, v_offset, DC_WINBUF_ADDR_V_OFFSET);
value = GENERAL_UPDATE | WIN_A_UPDATE;
tegra_dc_writel(dc, value, DC_CMD_STATE_CONTROL);
value = GENERAL_ACT_REQ | WIN_A_ACT_REQ;
tegra_dc_writel(dc, value << 8, DC_CMD_STATE_CONTROL);
tegra_dc_writel(dc, value, DC_CMD_STATE_CONTROL);
return 0;
@ -550,109 +807,6 @@ void tegra_dc_disable_vblank(struct tegra_dc *dc)
spin_unlock_irqrestore(&dc->lock, flags);
}
static int tegra_dc_cursor_set2(struct drm_crtc *crtc, struct drm_file *file,
uint32_t handle, uint32_t width,
uint32_t height, int32_t hot_x, int32_t hot_y)
{
unsigned long value = CURSOR_CLIP_DISPLAY;
struct tegra_dc *dc = to_tegra_dc(crtc);
struct drm_gem_object *gem;
struct tegra_bo *bo = NULL;
if (!dc->soc->supports_cursor)
return -ENXIO;
if (width != height)
return -EINVAL;
switch (width) {
case 32:
value |= CURSOR_SIZE_32x32;
break;
case 64:
value |= CURSOR_SIZE_64x64;
break;
case 128:
value |= CURSOR_SIZE_128x128;
case 256:
value |= CURSOR_SIZE_256x256;
break;
default:
return -EINVAL;
}
if (handle) {
gem = drm_gem_object_lookup(crtc->dev, file, handle);
if (!gem)
return -ENOENT;
bo = to_tegra_bo(gem);
}
if (bo) {
unsigned long addr = (bo->paddr & 0xfffffc00) >> 10;
#ifdef CONFIG_ARCH_DMA_ADDR_T_64BIT
unsigned long high = (bo->paddr & 0xfffffffc) >> 32;
#endif
tegra_dc_writel(dc, value | addr, DC_DISP_CURSOR_START_ADDR);
#ifdef CONFIG_ARCH_DMA_ADDR_T_64BIT
tegra_dc_writel(dc, high, DC_DISP_CURSOR_START_ADDR_HI);
#endif
value = tegra_dc_readl(dc, DC_DISP_DISP_WIN_OPTIONS);
value |= CURSOR_ENABLE;
tegra_dc_writel(dc, value, DC_DISP_DISP_WIN_OPTIONS);
value = tegra_dc_readl(dc, DC_DISP_BLEND_CURSOR_CONTROL);
value &= ~CURSOR_DST_BLEND_MASK;
value &= ~CURSOR_SRC_BLEND_MASK;
value |= CURSOR_MODE_NORMAL;
value |= CURSOR_DST_BLEND_NEG_K1_TIMES_SRC;
value |= CURSOR_SRC_BLEND_K1_TIMES_SRC;
value |= CURSOR_ALPHA;
tegra_dc_writel(dc, value, DC_DISP_BLEND_CURSOR_CONTROL);
} else {
value = tegra_dc_readl(dc, DC_DISP_DISP_WIN_OPTIONS);
value &= ~CURSOR_ENABLE;
tegra_dc_writel(dc, value, DC_DISP_DISP_WIN_OPTIONS);
}
tegra_dc_writel(dc, CURSOR_ACT_REQ << 8, DC_CMD_STATE_CONTROL);
tegra_dc_writel(dc, CURSOR_ACT_REQ, DC_CMD_STATE_CONTROL);
tegra_dc_writel(dc, GENERAL_ACT_REQ << 8, DC_CMD_STATE_CONTROL);
tegra_dc_writel(dc, GENERAL_ACT_REQ, DC_CMD_STATE_CONTROL);
return 0;
}
static int tegra_dc_cursor_move(struct drm_crtc *crtc, int x, int y)
{
struct tegra_dc *dc = to_tegra_dc(crtc);
unsigned long value;
if (!dc->soc->supports_cursor)
return -ENXIO;
value = ((y & 0x3fff) << 16) | (x & 0x3fff);
tegra_dc_writel(dc, value, DC_DISP_CURSOR_POSITION);
tegra_dc_writel(dc, CURSOR_ACT_REQ << 8, DC_CMD_STATE_CONTROL);
tegra_dc_writel(dc, CURSOR_ACT_REQ, DC_CMD_STATE_CONTROL);
/* XXX: only required on generations earlier than Tegra124? */
tegra_dc_writel(dc, GENERAL_ACT_REQ << 8, DC_CMD_STATE_CONTROL);
tegra_dc_writel(dc, GENERAL_ACT_REQ, DC_CMD_STATE_CONTROL);
return 0;
}
static void tegra_dc_finish_page_flip(struct tegra_dc *dc)
{
struct drm_device *drm = dc->base.dev;
@ -729,8 +883,6 @@ static void tegra_dc_destroy(struct drm_crtc *crtc)
}
static const struct drm_crtc_funcs tegra_crtc_funcs = {
.cursor_set2 = tegra_dc_cursor_set2,
.cursor_move = tegra_dc_cursor_move,
.page_flip = tegra_dc_page_flip,
.set_config = drm_crtc_helper_set_config,
.destroy = tegra_dc_destroy,
@ -744,7 +896,7 @@ static void tegra_crtc_disable(struct drm_crtc *crtc)
drm_for_each_legacy_plane(plane, &drm->mode_config.plane_list) {
if (plane->crtc == crtc) {
tegra_plane_disable(plane);
tegra_window_plane_disable(plane);
plane->crtc = NULL;
if (plane->fb) {
@ -755,6 +907,7 @@ static void tegra_crtc_disable(struct drm_crtc *crtc)
}
drm_vblank_off(drm, dc->pipe);
tegra_dc_commit(dc);
}
static bool tegra_crtc_mode_fixup(struct drm_crtc *crtc,
@ -937,15 +1090,9 @@ static void tegra_crtc_prepare(struct drm_crtc *crtc)
static void tegra_crtc_commit(struct drm_crtc *crtc)
{
struct tegra_dc *dc = to_tegra_dc(crtc);
unsigned long value;
value = GENERAL_UPDATE | WIN_A_UPDATE;
tegra_dc_writel(dc, value, DC_CMD_STATE_CONTROL);
value = GENERAL_ACT_REQ | WIN_A_ACT_REQ;
tegra_dc_writel(dc, value, DC_CMD_STATE_CONTROL);
drm_vblank_post_modeset(crtc->dev, dc->pipe);
tegra_dc_commit(dc);
}
static void tegra_crtc_load_lut(struct drm_crtc *crtc)
@ -999,7 +1146,7 @@ static int tegra_dc_show_regs(struct seq_file *s, void *data)
struct tegra_dc *dc = node->info_ent->data;
#define DUMP_REG(name) \
seq_printf(s, "%-40s %#05x %08lx\n", #name, name, \
seq_printf(s, "%-40s %#05x %08x\n", #name, name, \
tegra_dc_readl(dc, name))
DUMP_REG(DC_CMD_GENERAL_INCR_SYNCPT);
@ -1287,9 +1434,40 @@ static int tegra_dc_init(struct host1x_client *client)
struct drm_device *drm = dev_get_drvdata(client->parent);
struct tegra_dc *dc = host1x_client_to_dc(client);
struct tegra_drm *tegra = drm->dev_private;
struct drm_plane *primary = NULL;
struct drm_plane *cursor = NULL;
int err;
drm_crtc_init(drm, &dc->base, &tegra_crtc_funcs);
if (tegra->domain) {
err = iommu_attach_device(tegra->domain, dc->dev);
if (err < 0) {
dev_err(dc->dev, "failed to attach to domain: %d\n",
err);
return err;
}
dc->domain = tegra->domain;
}
primary = tegra_dc_primary_plane_create(drm, dc);
if (IS_ERR(primary)) {
err = PTR_ERR(primary);
goto cleanup;
}
if (dc->soc->supports_cursor) {
cursor = tegra_dc_cursor_plane_create(drm, dc);
if (IS_ERR(cursor)) {
err = PTR_ERR(cursor);
goto cleanup;
}
}
err = drm_crtc_init_with_planes(drm, &dc->base, primary, cursor,
&tegra_crtc_funcs);
if (err < 0)
goto cleanup;
drm_mode_crtc_set_gamma_size(&dc->base, 256);
drm_crtc_helper_add(&dc->base, &tegra_crtc_helper_funcs);
@ -1303,12 +1481,12 @@ static int tegra_dc_init(struct host1x_client *client)
err = tegra_dc_rgb_init(drm, dc);
if (err < 0 && err != -ENODEV) {
dev_err(dc->dev, "failed to initialize RGB output: %d\n", err);
return err;
goto cleanup;
}
err = tegra_dc_add_planes(drm, dc);
if (err < 0)
return err;
goto cleanup;
if (IS_ENABLED(CONFIG_DEBUG_FS)) {
err = tegra_dc_debugfs_init(dc, drm->primary);
@ -1321,10 +1499,24 @@ static int tegra_dc_init(struct host1x_client *client)
if (err < 0) {
dev_err(dc->dev, "failed to request IRQ#%u: %d\n", dc->irq,
err);
return err;
goto cleanup;
}
return 0;
cleanup:
if (cursor)
drm_plane_cleanup(cursor);
if (primary)
drm_plane_cleanup(primary);
if (tegra->domain) {
iommu_detach_device(tegra->domain, dc->dev);
dc->domain = NULL;
}
return err;
}
static int tegra_dc_exit(struct host1x_client *client)
@ -1346,6 +1538,11 @@ static int tegra_dc_exit(struct host1x_client *client)
return err;
}
if (dc->domain) {
iommu_detach_device(dc->domain, dc->dev);
dc->domain = NULL;
}
return 0;
}
@ -1359,6 +1556,7 @@ static const struct tegra_dc_soc_info tegra20_dc_soc_info = {
.supports_cursor = false,
.supports_block_linear = false,
.pitch_align = 8,
.has_powergate = false,
};
static const struct tegra_dc_soc_info tegra30_dc_soc_info = {
@ -1366,6 +1564,7 @@ static const struct tegra_dc_soc_info tegra30_dc_soc_info = {
.supports_cursor = false,
.supports_block_linear = false,
.pitch_align = 8,
.has_powergate = false,
};
static const struct tegra_dc_soc_info tegra114_dc_soc_info = {
@ -1373,6 +1572,7 @@ static const struct tegra_dc_soc_info tegra114_dc_soc_info = {
.supports_cursor = false,
.supports_block_linear = false,
.pitch_align = 64,
.has_powergate = true,
};
static const struct tegra_dc_soc_info tegra124_dc_soc_info = {
@ -1380,12 +1580,16 @@ static const struct tegra_dc_soc_info tegra124_dc_soc_info = {
.supports_cursor = true,
.supports_block_linear = true,
.pitch_align = 64,
.has_powergate = true,
};
static const struct of_device_id tegra_dc_of_match[] = {
{
.compatible = "nvidia,tegra124-dc",
.data = &tegra124_dc_soc_info,
}, {
.compatible = "nvidia,tegra114-dc",
.data = &tegra114_dc_soc_info,
}, {
.compatible = "nvidia,tegra30-dc",
.data = &tegra30_dc_soc_info,
@ -1469,9 +1673,34 @@ static int tegra_dc_probe(struct platform_device *pdev)
return PTR_ERR(dc->rst);
}
err = clk_prepare_enable(dc->clk);
if (err < 0)
return err;
if (dc->soc->has_powergate) {
if (dc->pipe == 0)
dc->powergate = TEGRA_POWERGATE_DIS;
else
dc->powergate = TEGRA_POWERGATE_DISB;
err = tegra_powergate_sequence_power_up(dc->powergate, dc->clk,
dc->rst);
if (err < 0) {
dev_err(&pdev->dev, "failed to power partition: %d\n",
err);
return err;
}
} else {
err = clk_prepare_enable(dc->clk);
if (err < 0) {
dev_err(&pdev->dev, "failed to enable clock: %d\n",
err);
return err;
}
err = reset_control_deassert(dc->rst);
if (err < 0) {
dev_err(&pdev->dev, "failed to deassert reset: %d\n",
err);
return err;
}
}
regs = platform_get_resource(pdev, IORESOURCE_MEM, 0);
dc->regs = devm_ioremap_resource(&pdev->dev, regs);
@ -1525,6 +1754,10 @@ static int tegra_dc_remove(struct platform_device *pdev)
}
reset_control_assert(dc->rst);
if (dc->soc->has_powergate)
tegra_powergate_power_off(dc->powergate);
clk_disable_unprepare(dc->clk);
return 0;

46
drivers/gpu/drm/tegra/drm.c
Просмотреть файл

@ -8,6 +8,7 @@
*/
#include <linux/host1x.h>
#include <linux/iommu.h>
#include "drm.h"
#include "gem.h"
@ -33,6 +34,17 @@ static int tegra_drm_load(struct drm_device *drm, unsigned long flags)
if (!tegra)
return -ENOMEM;
if (iommu_present(&platform_bus_type)) {
tegra->domain = iommu_domain_alloc(&platform_bus_type);
if (IS_ERR(tegra->domain)) {
err = PTR_ERR(tegra->domain);
goto free;
}
DRM_DEBUG("IOMMU context initialized\n");
drm_mm_init(&tegra->mm, 0, SZ_2G);
}
mutex_init(&tegra->clients_lock);
INIT_LIST_HEAD(&tegra->clients);
drm->dev_private = tegra;
@ -42,13 +54,13 @@ static int tegra_drm_load(struct drm_device *drm, unsigned long flags)
err = tegra_drm_fb_prepare(drm);
if (err < 0)
return err;
goto config;
drm_kms_helper_poll_init(drm);
err = host1x_device_init(device);
if (err < 0)
return err;
goto fbdev;
/*
* We don't use the drm_irq_install() helpers provided by the DRM
@ -59,18 +71,37 @@ static int tegra_drm_load(struct drm_device *drm, unsigned long flags)
err = drm_vblank_init(drm, drm->mode_config.num_crtc);
if (err < 0)
return err;
goto device;
err = tegra_drm_fb_init(drm);
if (err < 0)
return err;
goto vblank;
return 0;
vblank:
drm_vblank_cleanup(drm);
device:
host1x_device_exit(device);
fbdev:
drm_kms_helper_poll_fini(drm);
tegra_drm_fb_free(drm);
config:
drm_mode_config_cleanup(drm);
if (tegra->domain) {
iommu_domain_free(tegra->domain);
drm_mm_takedown(&tegra->mm);
}
free:
kfree(tegra);
return err;
}
static int tegra_drm_unload(struct drm_device *drm)
{
struct host1x_device *device = to_host1x_device(drm->dev);
struct tegra_drm *tegra = drm->dev_private;
int err;
drm_kms_helper_poll_fini(drm);
@ -82,6 +113,13 @@ static int tegra_drm_unload(struct drm_device *drm)
if (err < 0)
return err;
if (tegra->domain) {
iommu_domain_free(tegra->domain);
drm_mm_takedown(&tegra->mm);
}
kfree(tegra);
return 0;
}

18
drivers/gpu/drm/tegra/drm.h
Просмотреть файл

@ -39,6 +39,9 @@ struct tegra_fbdev {
struct tegra_drm {
struct drm_device *drm;
struct iommu_domain *domain;
struct drm_mm mm;
struct mutex clients_lock;
struct list_head clients;
@ -101,6 +104,7 @@ struct tegra_dc {
spinlock_t lock;
struct drm_crtc base;
int powergate;
int pipe;
struct clk *clk;
@ -120,6 +124,8 @@ struct tegra_dc {
struct drm_pending_vblank_event *event;
const struct tegra_dc_soc_info *soc;
struct iommu_domain *domain;
};
static inline struct tegra_dc *
@ -133,16 +139,15 @@ static inline struct tegra_dc *to_tegra_dc(struct drm_crtc *crtc)
return crtc ? container_of(crtc, struct tegra_dc, base) : NULL;
}
static inline void tegra_dc_writel(struct tegra_dc *dc, unsigned long value,
unsigned long reg)
static inline void tegra_dc_writel(struct tegra_dc *dc, u32 value,
unsigned long offset)
{
writel(value, dc->regs + (reg << 2));
writel(value, dc->regs + (offset << 2));
}
static inline unsigned long tegra_dc_readl(struct tegra_dc *dc,
unsigned long reg)
static inline u32 tegra_dc_readl(struct tegra_dc *dc, unsigned long offset)
{
return readl(dc->regs + (reg << 2));
return readl(dc->regs + (offset << 2));
}
struct tegra_dc_window {
@ -287,6 +292,7 @@ bool tegra_fb_is_bottom_up(struct drm_framebuffer *framebuffer);
int tegra_fb_get_tiling(struct drm_framebuffer *framebuffer,
struct tegra_bo_tiling *tiling);
int tegra_drm_fb_prepare(struct drm_device *drm);
void tegra_drm_fb_free(struct drm_device *drm);
int tegra_drm_fb_init(struct drm_device *drm);
void tegra_drm_fb_exit(struct drm_device *drm);
#ifdef CONFIG_DRM_TEGRA_FBDEV

813
drivers/gpu/drm/tegra/dsi.c
Просмотреть файл

Разница между файлами не показана из-за своего большого размера Загрузить разницу

14
drivers/gpu/drm/tegra/dsi.h
Просмотреть файл

@ -21,9 +21,16 @@
#define DSI_INT_STATUS 0x0d
#define DSI_INT_MASK 0x0e
#define DSI_HOST_CONTROL 0x0f
#define DSI_HOST_CONTROL_FIFO_RESET (1 << 21)
#define DSI_HOST_CONTROL_CRC_RESET (1 << 20)
#define DSI_HOST_CONTROL_TX_TRIG_SOL (0 << 12)
#define DSI_HOST_CONTROL_TX_TRIG_FIFO (1 << 12)
#define DSI_HOST_CONTROL_TX_TRIG_HOST (2 << 12)
#define DSI_HOST_CONTROL_RAW (1 << 6)
#define DSI_HOST_CONTROL_HS (1 << 5)
#define DSI_HOST_CONTROL_BTA (1 << 2)
#define DSI_HOST_CONTROL_FIFO_SEL (1 << 4)
#define DSI_HOST_CONTROL_IMM_BTA (1 << 3)
#define DSI_HOST_CONTROL_PKT_BTA (1 << 2)
#define DSI_HOST_CONTROL_CS (1 << 1)
#define DSI_HOST_CONTROL_ECC (1 << 0)
#define DSI_CONTROL 0x10
@ -39,9 +46,13 @@
#define DSI_SOL_DELAY 0x11
#define DSI_MAX_THRESHOLD 0x12
#define DSI_TRIGGER 0x13
#define DSI_TRIGGER_HOST (1 << 1)
#define DSI_TRIGGER_VIDEO (1 << 0)
#define DSI_TX_CRC 0x14
#define DSI_STATUS 0x15
#define DSI_STATUS_IDLE (1 << 10)
#define DSI_STATUS_UNDERFLOW (1 << 9)
#define DSI_STATUS_OVERFLOW (1 << 8)
#define DSI_INIT_SEQ_CONTROL 0x1a
#define DSI_INIT_SEQ_DATA_0 0x1b
#define DSI_INIT_SEQ_DATA_1 0x1c
@ -104,6 +115,7 @@
#define DSI_PAD_CONTROL_3 0x51
#define DSI_PAD_CONTROL_4 0x52
#define DSI_GANGED_MODE_CONTROL 0x53
#define DSI_GANGED_MODE_CONTROL_ENABLE (1 << 0)
#define DSI_GANGED_MODE_START 0x54
#define DSI_GANGED_MODE_SIZE 0x55
#define DSI_RAW_DATA_BYTE_COUNT 0x56

52
drivers/gpu/drm/tegra/fb.c
Просмотреть файл

@ -65,8 +65,12 @@ static void tegra_fb_destroy(struct drm_framebuffer *framebuffer)
for (i = 0; i < fb->num_planes; i++) {
struct tegra_bo *bo = fb->planes[i];
if (bo)
if (bo) {
if (bo->pages && bo->vaddr)
vunmap(bo->vaddr);
drm_gem_object_unreference_unlocked(&bo->gem);
}
}
drm_framebuffer_cleanup(framebuffer);
@ -223,14 +227,16 @@ static int tegra_fbdev_probe(struct drm_fb_helper *helper,
info = framebuffer_alloc(0, drm->dev);
if (!info) {
dev_err(drm->dev, "failed to allocate framebuffer info\n");
tegra_bo_free_object(&bo->gem);
drm_gem_object_unreference_unlocked(&bo->gem);
return -ENOMEM;
}
fbdev->fb = tegra_fb_alloc(drm, &cmd, &bo, 1);
if (IS_ERR(fbdev->fb)) {
dev_err(drm->dev, "failed to allocate DRM framebuffer\n");
err = PTR_ERR(fbdev->fb);
dev_err(drm->dev, "failed to allocate DRM framebuffer: %d\n",
err);
drm_gem_object_unreference_unlocked(&bo->gem);
goto release;
}
@ -254,6 +260,16 @@ static int tegra_fbdev_probe(struct drm_fb_helper *helper,
offset = info->var.xoffset * bytes_per_pixel +
info->var.yoffset * fb->pitches[0];
if (bo->pages) {
bo->vaddr = vmap(bo->pages, bo->num_pages, VM_MAP,
pgprot_writecombine(PAGE_KERNEL));
if (!bo->vaddr) {
dev_err(drm->dev, "failed to vmap() framebuffer\n");
err = -ENOMEM;
goto destroy;
}
}
drm->mode_config.fb_base = (resource_size_t)bo->paddr;
info->screen_base = (void __iomem *)bo->vaddr + offset;
info->screen_size = size;
@ -289,6 +305,11 @@ static struct tegra_fbdev *tegra_fbdev_create(struct drm_device *drm)
return fbdev;
}
static void tegra_fbdev_free(struct tegra_fbdev *fbdev)
{
kfree(fbdev);
}
static int tegra_fbdev_init(struct tegra_fbdev *fbdev,
unsigned int preferred_bpp,
unsigned int num_crtc,
@ -299,19 +320,21 @@ static int tegra_fbdev_init(struct tegra_fbdev *fbdev,
err = drm_fb_helper_init(drm, &fbdev->base, num_crtc, max_connectors);
if (err < 0) {
dev_err(drm->dev, "failed to initialize DRM FB helper\n");
dev_err(drm->dev, "failed to initialize DRM FB helper: %d\n",
err);
return err;
}
err = drm_fb_helper_single_add_all_connectors(&fbdev->base);
if (err < 0) {
dev_err(drm->dev, "failed to add connectors\n");
dev_err(drm->dev, "failed to add connectors: %d\n", err);
goto fini;
}
err = drm_fb_helper_initial_config(&fbdev->base, preferred_bpp);
if (err < 0) {
dev_err(drm->dev, "failed to set initial configuration\n");
dev_err(drm->dev, "failed to set initial configuration: %d\n",
err);
goto fini;
}
@ -322,7 +345,7 @@ fini:
return err;
}
static void tegra_fbdev_free(struct tegra_fbdev *fbdev)
static void tegra_fbdev_exit(struct tegra_fbdev *fbdev)
{
struct fb_info *info = fbdev->base.fbdev;
@ -341,11 +364,11 @@ static void tegra_fbdev_free(struct tegra_fbdev *fbdev)
if (fbdev->fb) {
drm_framebuffer_unregister_private(&fbdev->fb->base);
tegra_fb_destroy(&fbdev->fb->base);
drm_framebuffer_remove(&fbdev->fb->base);
}
drm_fb_helper_fini(&fbdev->base);
kfree(fbdev);
tegra_fbdev_free(fbdev);
}
void tegra_fbdev_restore_mode(struct tegra_fbdev *fbdev)
@ -393,6 +416,15 @@ int tegra_drm_fb_prepare(struct drm_device *drm)
return 0;
}
void tegra_drm_fb_free(struct drm_device *drm)
{
#ifdef CONFIG_DRM_TEGRA_FBDEV
struct tegra_drm *tegra = drm->dev_private;
tegra_fbdev_free(tegra->fbdev);
#endif
}
int tegra_drm_fb_init(struct drm_device *drm)
{
#ifdef CONFIG_DRM_TEGRA_FBDEV
@ -413,6 +445,6 @@ void tegra_drm_fb_exit(struct drm_device *drm)
#ifdef CONFIG_DRM_TEGRA_FBDEV
struct tegra_drm *tegra = drm->dev_private;
tegra_fbdev_free(tegra->fbdev);
tegra_fbdev_exit(tegra->fbdev);
#endif
}

366
drivers/gpu/drm/tegra/gem.c
Просмотреть файл

@ -14,6 +14,7 @@
*/
#include <linux/dma-buf.h>
#include <linux/iommu.h>
#include <drm/tegra_drm.h>
#include "drm.h"
@ -91,13 +92,90 @@ static const struct host1x_bo_ops tegra_bo_ops = {
.kunmap = tegra_bo_kunmap,
};
static void tegra_bo_destroy(struct drm_device *drm, struct tegra_bo *bo)
/*
* A generic iommu_map_sg() function is being reviewed and will hopefully be
* merged soon. At that point this function can be dropped in favour of the
* one provided by the IOMMU API.
*/
static ssize_t __iommu_map_sg(struct iommu_domain *domain, unsigned long iova,
struct scatterlist *sg, unsigned int nents,
int prot)
{
dma_free_writecombine(drm->dev, bo->gem.size, bo->vaddr, bo->paddr);
struct scatterlist *s;
size_t offset = 0;
unsigned int i;
int err;
for_each_sg(sg, s, nents, i) {
phys_addr_t phys = page_to_phys(sg_page(s));
size_t length = s->offset + s->length;
err = iommu_map(domain, iova + offset, phys, length, prot);
if (err < 0) {
iommu_unmap(domain, iova, offset);
return err;
}
offset += length;
}
return offset;
}
struct tegra_bo *tegra_bo_create(struct drm_device *drm, unsigned int size,
unsigned long flags)
static int tegra_bo_iommu_map(struct tegra_drm *tegra, struct tegra_bo *bo)
{
int prot = IOMMU_READ | IOMMU_WRITE;
ssize_t err;
if (bo->mm)
return -EBUSY;
bo->mm = kzalloc(sizeof(*bo->mm), GFP_KERNEL);
if (!bo->mm)
return -ENOMEM;
err = drm_mm_insert_node_generic(&tegra->mm, bo->mm, bo->gem.size,
PAGE_SIZE, 0, 0, 0);
if (err < 0) {
dev_err(tegra->drm->dev, "out of I/O virtual memory: %zd\n",
err);
goto free;
}
bo->paddr = bo->mm->start;
err = __iommu_map_sg(tegra->domain, bo->paddr, bo->sgt->sgl,
bo->sgt->nents, prot);
if (err < 0) {
dev_err(tegra->drm->dev, "failed to map buffer: %zd\n", err);
goto remove;
}
bo->size = err;
return 0;
remove:
drm_mm_remove_node(bo->mm);
free:
kfree(bo->mm);
return err;
}
static int tegra_bo_iommu_unmap(struct tegra_drm *tegra, struct tegra_bo *bo)
{
if (!bo->mm)
return 0;
iommu_unmap(tegra->domain, bo->paddr, bo->size);
drm_mm_remove_node(bo->mm);
kfree(bo->mm);
return 0;
}
static struct tegra_bo *tegra_bo_alloc_object(struct drm_device *drm,
size_t size)
{
struct tegra_bo *bo;
int err;
@ -109,22 +187,96 @@ struct tegra_bo *tegra_bo_create(struct drm_device *drm, unsigned int size,
host1x_bo_init(&bo->base, &tegra_bo_ops);
size = round_up(size, PAGE_SIZE);
bo->vaddr = dma_alloc_writecombine(drm->dev, size, &bo->paddr,
GFP_KERNEL | __GFP_NOWARN);
if (!bo->vaddr) {
dev_err(drm->dev, "failed to allocate buffer with size %u\n",
size);
err = -ENOMEM;
goto err_dma;
}
err = drm_gem_object_init(drm, &bo->gem, size);
if (err)
goto err_init;
if (err < 0)
goto free;
err = drm_gem_create_mmap_offset(&bo->gem);
if (err)
goto err_mmap;
if (err < 0)
goto release;
return bo;
release:
drm_gem_object_release(&bo->gem);
free:
kfree(bo);
return ERR_PTR(err);
}
static void tegra_bo_free(struct drm_device *drm, struct tegra_bo *bo)
{
if (bo->pages) {
drm_gem_put_pages(&bo->gem, bo->pages, true, true);
sg_free_table(bo->sgt);
kfree(bo->sgt);
} else if (bo->vaddr) {
dma_free_writecombine(drm->dev, bo->gem.size, bo->vaddr,
bo->paddr);
}
}
static int tegra_bo_get_pages(struct drm_device *drm, struct tegra_bo *bo,
size_t size)
{
bo->pages = drm_gem_get_pages(&bo->gem);
if (IS_ERR(bo->pages))
return PTR_ERR(bo->pages);
bo->num_pages = size >> PAGE_SHIFT;
bo->sgt = drm_prime_pages_to_sg(bo->pages, bo->num_pages);
if (IS_ERR(bo->sgt)) {
drm_gem_put_pages(&bo->gem, bo->pages, false, false);
return PTR_ERR(bo->sgt);
}
return 0;
}
static int tegra_bo_alloc(struct drm_device *drm, struct tegra_bo *bo,
size_t size)
{
struct tegra_drm *tegra = drm->dev_private;
int err;
if (tegra->domain) {
err = tegra_bo_get_pages(drm, bo, size);
if (err < 0)
return err;
err = tegra_bo_iommu_map(tegra, bo);
if (err < 0) {
tegra_bo_free(drm, bo);
return err;
}
} else {
bo->vaddr = dma_alloc_writecombine(drm->dev, size, &bo->paddr,
GFP_KERNEL | __GFP_NOWARN);
if (!bo->vaddr) {
dev_err(drm->dev,
"failed to allocate buffer of size %zu\n",
size);
return -ENOMEM;
}
}
return 0;
}
struct tegra_bo *tegra_bo_create(struct drm_device *drm, size_t size,
unsigned long flags)
{
struct tegra_bo *bo;
int err;
bo = tegra_bo_alloc_object(drm, size);
if (IS_ERR(bo))
return bo;
err = tegra_bo_alloc(drm, bo, size);
if (err < 0)
goto release;
if (flags & DRM_TEGRA_GEM_CREATE_TILED)
bo->tiling.mode = TEGRA_BO_TILING_MODE_TILED;
@ -134,69 +286,52 @@ struct tegra_bo *tegra_bo_create(struct drm_device *drm, unsigned int size,
return bo;
err_mmap:
release:
drm_gem_object_release(&bo->gem);
err_init:
tegra_bo_destroy(drm, bo);
err_dma:
kfree(bo);
return ERR_PTR(err);
}
struct tegra_bo *tegra_bo_create_with_handle(struct drm_file *file,
struct drm_device *drm,
unsigned int size,
size_t size,
unsigned long flags,
unsigned int *handle)
u32 *handle)
{
struct tegra_bo *bo;
int ret;
int err;
bo = tegra_bo_create(drm, size, flags);
if (IS_ERR(bo))
return bo;
ret = drm_gem_handle_create(file, &bo->gem, handle);
if (ret)
goto err;
err = drm_gem_handle_create(file, &bo->gem, handle);
if (err) {
tegra_bo_free_object(&bo->gem);
return ERR_PTR(err);
}
drm_gem_object_unreference_unlocked(&bo->gem);
return bo;
err:
tegra_bo_free_object(&bo->gem);
return ERR_PTR(ret);
}
static struct tegra_bo *tegra_bo_import(struct drm_device *drm,
struct dma_buf *buf)
{
struct tegra_drm *tegra = drm->dev_private;
struct dma_buf_attachment *attach;
struct tegra_bo *bo;
ssize_t size;
int err;
bo = kzalloc(sizeof(*bo), GFP_KERNEL);
if (!bo)
return ERR_PTR(-ENOMEM);
host1x_bo_init(&bo->base, &tegra_bo_ops);
size = round_up(buf->size, PAGE_SIZE);
err = drm_gem_object_init(drm, &bo->gem, size);
if (err < 0)
goto free;
err = drm_gem_create_mmap_offset(&bo->gem);
if (err < 0)
goto release;
bo = tegra_bo_alloc_object(drm, buf->size);
if (IS_ERR(bo))
return bo;
attach = dma_buf_attach(buf, drm->dev);
if (IS_ERR(attach)) {
err = PTR_ERR(attach);
goto free_mmap;
goto free;
}
get_dma_buf(buf);
@ -212,12 +347,19 @@ static struct tegra_bo *tegra_bo_import(struct drm_device *drm,
goto detach;
}
if (bo->sgt->nents > 1) {
err = -EINVAL;
goto detach;
if (tegra->domain) {
err = tegra_bo_iommu_map(tegra, bo);
if (err < 0)
goto detach;
} else {
if (bo->sgt->nents > 1) {
err = -EINVAL;
goto detach;
}
bo->paddr = sg_dma_address(bo->sgt->sgl);
}
bo->paddr = sg_dma_address(bo->sgt->sgl);
bo->gem.import_attach = attach;
return bo;
@ -228,47 +370,41 @@ detach:
dma_buf_detach(buf, attach);
dma_buf_put(buf);
free_mmap:
drm_gem_free_mmap_offset(&bo->gem);
release:
drm_gem_object_release(&bo->gem);
free:
drm_gem_object_release(&bo->gem);
kfree(bo);
return ERR_PTR(err);
}
void tegra_bo_free_object(struct drm_gem_object *gem)
{
struct tegra_drm *tegra = gem->dev->dev_private;
struct tegra_bo *bo = to_tegra_bo(gem);
if (tegra->domain)
tegra_bo_iommu_unmap(tegra, bo);
if (gem->import_attach) {
dma_buf_unmap_attachment(gem->import_attach, bo->sgt,
DMA_TO_DEVICE);
drm_prime_gem_destroy(gem, NULL);
} else {
tegra_bo_destroy(gem->dev, bo);
tegra_bo_free(gem->dev, bo);
}
drm_gem_free_mmap_offset(gem);
drm_gem_object_release(gem);
kfree(bo);
}
int tegra_bo_dumb_create(struct drm_file *file, struct drm_device *drm,
struct drm_mode_create_dumb *args)
{
int min_pitch = DIV_ROUND_UP(args->width * args->bpp, 8);
unsigned int min_pitch = DIV_ROUND_UP(args->width * args->bpp, 8);
struct tegra_drm *tegra = drm->dev_private;
struct tegra_bo *bo;
min_pitch = round_up(min_pitch, tegra->pitch_align);
if (args->pitch < min_pitch)
args->pitch = min_pitch;
if (args->size < args->pitch * args->height)
args->size = args->pitch * args->height;
args->pitch = round_up(min_pitch, tegra->pitch_align);
args->size = args->pitch * args->height;
bo = tegra_bo_create_with_handle(file, drm, args->size, 0,
&args->handle);
@ -279,7 +415,7 @@ int tegra_bo_dumb_create(struct drm_file *file, struct drm_device *drm,
}
int tegra_bo_dumb_map_offset(struct drm_file *file, struct drm_device *drm,
uint32_t handle, uint64_t *offset)
u32 handle, u64 *offset)
{
struct drm_gem_object *gem;
struct tegra_bo *bo;
@ -304,7 +440,38 @@ int tegra_bo_dumb_map_offset(struct drm_file *file, struct drm_device *drm,
return 0;
}
static int tegra_bo_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
{
struct drm_gem_object *gem = vma->vm_private_data;
struct tegra_bo *bo = to_tegra_bo(gem);
struct page *page;
pgoff_t offset;
int err;
if (!bo->pages)
return VM_FAULT_SIGBUS;
offset = ((unsigned long)vmf->virtual_address - vma->vm_start) >> PAGE_SHIFT;
page = bo->pages[offset];
err = vm_insert_page(vma, (unsigned long)vmf->virtual_address, page);
switch (err) {
case -EAGAIN:
case 0:
case -ERESTARTSYS:
case -EINTR:
case -EBUSY:
return VM_FAULT_NOPAGE;
case -ENOMEM:
return VM_FAULT_OOM;
}
return VM_FAULT_SIGBUS;
}
const struct vm_operations_struct tegra_bo_vm_ops = {
.fault = tegra_bo_fault,
.open = drm_gem_vm_open,
.close = drm_gem_vm_close,
};
@ -322,12 +489,30 @@ int tegra_drm_mmap(struct file *file, struct vm_area_struct *vma)
gem = vma->vm_private_data;
bo = to_tegra_bo(gem);
ret = remap_pfn_range(vma, vma->vm_start, bo->paddr >> PAGE_SHIFT,
vma->vm_end - vma->vm_start, vma->vm_page_prot);
if (ret)
drm_gem_vm_close(vma);
if (!bo->pages) {
unsigned long vm_pgoff = vma->vm_pgoff;
return ret;
vma->vm_flags &= ~VM_PFNMAP;
vma->vm_pgoff = 0;
ret = dma_mmap_writecombine(gem->dev->dev, vma, bo->vaddr,
bo->paddr, gem->size);
if (ret) {
drm_gem_vm_close(vma);
return ret;
}
vma->vm_pgoff = vm_pgoff;
} else {
pgprot_t prot = vm_get_page_prot(vma->vm_flags);
vma->vm_flags |= VM_MIXEDMAP;
vma->vm_flags &= ~VM_PFNMAP;
vma->vm_page_prot = pgprot_writecombine(prot);
}
return 0;
}
static struct sg_table *
@ -342,21 +527,44 @@ tegra_gem_prime_map_dma_buf(struct dma_buf_attachment *attach,
if (!sgt)
return NULL;
if (sg_alloc_table(sgt, 1, GFP_KERNEL)) {
kfree(sgt);
return NULL;
if (bo->pages) {
struct scatterlist *sg;
unsigned int i;
if (sg_alloc_table(sgt, bo->num_pages, GFP_KERNEL))
goto free;
for_each_sg(sgt->sgl, sg, bo->num_pages, i)
sg_set_page(sg, bo->pages[i], PAGE_SIZE, 0);
if (dma_map_sg(attach->dev, sgt->sgl, sgt->nents, dir) == 0)
goto free;
} else {
if (sg_alloc_table(sgt, 1, GFP_KERNEL))
goto free;
sg_dma_address(sgt->sgl) = bo->paddr;
sg_dma_len(sgt->sgl) = gem->size;
}
sg_dma_address(sgt->sgl) = bo->paddr;
sg_dma_len(sgt->sgl) = gem->size;
return sgt;
free:
sg_free_table(sgt);
kfree(sgt);
return NULL;
}
static void tegra_gem_prime_unmap_dma_buf(struct dma_buf_attachment *attach,
struct sg_table *sgt,
enum dma_data_direction dir)
{
struct drm_gem_object *gem = attach->dmabuf->priv;
struct tegra_bo *bo = to_tegra_bo(gem);
if (bo->pages)
dma_unmap_sg(attach->dev, sgt->sgl, sgt->nents, dir);
sg_free_table(sgt);
kfree(sgt);
}

14
drivers/gpu/drm/tegra/gem.h
Просмотреть файл

@ -38,6 +38,12 @@ struct tegra_bo {
dma_addr_t paddr;
void *vaddr;
struct drm_mm_node *mm;
unsigned long num_pages;
struct page **pages;
/* size of IOMMU mapping */
size_t size;
struct tegra_bo_tiling tiling;
};
@ -46,18 +52,18 @@ static inline struct tegra_bo *to_tegra_bo(struct drm_gem_object *gem)
return container_of(gem, struct tegra_bo, gem);
}
struct tegra_bo *tegra_bo_create(struct drm_device *drm, unsigned int size,
struct tegra_bo *tegra_bo_create(struct drm_device *drm, size_t size,
unsigned long flags);
struct tegra_bo *tegra_bo_create_with_handle(struct drm_file *file,
struct drm_device *drm,
unsigned int size,
size_t size,
unsigned long flags,
unsigned int *handle);
u32 *handle);
void tegra_bo_free_object(struct drm_gem_object *gem);
int tegra_bo_dumb_create(struct drm_file *file, struct drm_device *drm,
struct drm_mode_create_dumb *args);
int tegra_bo_dumb_map_offset(struct drm_file *file, struct drm_device *drm,
uint32_t handle, uint64_t *offset);
u32 handle, u64 *offset);
int tegra_drm_mmap(struct file *file, struct vm_area_struct *vma);

35
drivers/gpu/drm/tegra/output.c
Просмотреть файл

@ -157,22 +157,18 @@ static bool tegra_encoder_mode_fixup(struct drm_encoder *encoder,
static void tegra_encoder_prepare(struct drm_encoder *encoder)
{
tegra_encoder_dpms(encoder, DRM_MODE_DPMS_OFF);
}
static void tegra_encoder_commit(struct drm_encoder *encoder)
{
tegra_encoder_dpms(encoder, DRM_MODE_DPMS_ON);
}
static void tegra_encoder_mode_set(struct drm_encoder *encoder,
struct drm_display_mode *mode,
struct drm_display_mode *adjusted)
{
struct tegra_output *output = encoder_to_output(encoder);
int err;
err = tegra_output_enable(output);
if (err < 0)
dev_err(encoder->dev->dev, "tegra_output_enable(): %d\n", err);
}
static const struct drm_encoder_helper_funcs encoder_helper_funcs = {
@ -187,7 +183,8 @@ static irqreturn_t hpd_irq(int irq, void *data)
{
struct tegra_output *output = data;
drm_helper_hpd_irq_event(output->connector.dev);
if (output->connector.dev)
drm_helper_hpd_irq_event(output->connector.dev);
return IRQ_HANDLED;
}
@ -259,6 +256,13 @@ int tegra_output_probe(struct tegra_output *output)
}
output->connector.polled = DRM_CONNECTOR_POLL_HPD;
/*
* Disable the interrupt until the connector has been
* initialized to avoid a race in the hotplug interrupt
* handler.
*/
disable_irq(output->hpd_irq);
}
return 0;
@ -324,10 +328,27 @@ int tegra_output_init(struct drm_device *drm, struct tegra_output *output)
output->encoder.possible_crtcs = 0x3;
/*
* The connector is now registered and ready to receive hotplug events
* so the hotplug interrupt can be enabled.
*/
if (gpio_is_valid(output->hpd_gpio))
enable_irq(output->hpd_irq);
return 0;
}
int tegra_output_exit(struct tegra_output *output)
{
/*
* The connector is going away, so the interrupt must be disabled to
* prevent the hotplug interrupt handler from potentially crashing.
*/
if (gpio_is_valid(output->hpd_gpio))
disable_irq(output->hpd_irq);
if (output->panel)
drm_panel_detach(output->panel);
return 0;
}

2
drivers/gpu/host1x/cdma.c
Просмотреть файл

@ -97,7 +97,7 @@ fail:
static void host1x_pushbuffer_push(struct push_buffer *pb, u32 op1, u32 op2)
{
u32 pos = pb->pos;
u32 *p = (u32 *)((u32)pb->mapped + pos);
u32 *p = (u32 *)((void *)pb->mapped + pos);
WARN_ON(pos == pb->fence);
*(p++) = op1;
*(p++) = op2;

2
drivers/gpu/host1x/cdma.h
Просмотреть файл

@ -42,7 +42,7 @@ struct host1x_job;
*/
struct push_buffer {
u32 *mapped; /* mapped pushbuffer memory */
void *mapped; /* mapped pushbuffer memory */
dma_addr_t phys; /* physical address of pushbuffer */
u32 fence; /* index we've written */
u32 pos; /* index to write to */

10
drivers/gpu/host1x/hw/cdma_hw.c
Просмотреть файл

@ -26,11 +26,11 @@
#include "../debug.h"
/*
* Put the restart at the end of pushbuffer memor
* Put the restart at the end of pushbuffer memory
*/
static void push_buffer_init(struct push_buffer *pb)
{
*(pb->mapped + (pb->size_bytes >> 2)) = host1x_opcode_restart(0);
*(u32 *)(pb->mapped + pb->size_bytes) = host1x_opcode_restart(0);
}
/*
@ -51,11 +51,11 @@ static void cdma_timeout_cpu_incr(struct host1x_cdma *cdma, u32 getptr,
/* NOP all the PB slots */
while (nr_slots--) {
u32 *p = (u32 *)((u32)pb->mapped + getptr);
u32 *p = (u32 *)(pb->mapped + getptr);
*(p++) = HOST1X_OPCODE_NOP;
*(p++) = HOST1X_OPCODE_NOP;
dev_dbg(host1x->dev, "%s: NOP at %#llx\n", __func__,
(u64)pb->phys + getptr);
dev_dbg(host1x->dev, "%s: NOP at %pad+%#x\n", __func__,
&pb->phys, getptr);
getptr = (getptr + 8) & (pb->size_bytes - 1);
}
wmb();

12
drivers/gpu/host1x/hw/channel_hw.c
Просмотреть файл

@ -32,6 +32,7 @@
static void trace_write_gather(struct host1x_cdma *cdma, struct host1x_bo *bo,
u32 offset, u32 words)
{
struct device *dev = cdma_to_channel(cdma)->dev;
void *mem = NULL;
if (host1x_debug_trace_cmdbuf)
@ -44,11 +45,14 @@ static void trace_write_gather(struct host1x_cdma *cdma, struct host1x_bo *bo,
* of how much you can output to ftrace at once.
*/
for (i = 0; i < words; i += TRACE_MAX_LENGTH) {
trace_host1x_cdma_push_gather(
dev_name(cdma_to_channel(cdma)->dev),
(u32)bo, min(words - i, TRACE_MAX_LENGTH),
offset + i * sizeof(u32), mem);
u32 num_words = min(words - i, TRACE_MAX_LENGTH);
offset += i * sizeof(u32);
trace_host1x_cdma_push_gather(dev_name(dev), bo,
num_words, offset,
mem);
}
host1x_bo_munmap(bo, mem);
}
}

4
drivers/gpu/host1x/hw/debug_hw.c
Просмотреть файл

@ -163,8 +163,8 @@ static void show_channel_gathers(struct output *o, struct host1x_cdma *cdma)
continue;
}
host1x_debug_output(o, " GATHER at %#llx+%04x, %d words\n",
(u64)g->base, g->offset, g->words);
host1x_debug_output(o, " GATHER at %pad+%#x, %d words\n",
&g->base, g->offset, g->words);
show_gather(o, g->base + g->offset, g->words, cdma,
g->base, mapped);

2
drivers/gpu/host1x/job.h
Просмотреть файл

@ -23,7 +23,7 @@ struct host1x_job_gather {
u32 words;
dma_addr_t base;
struct host1x_bo *bo;
int offset;
u32 offset;
bool handled;
};

148
drivers/gpu/host1x/mipi.c
Просмотреть файл

@ -49,35 +49,47 @@
#define MIPI_CAL_CONFIG_DSIC 0x10
#define MIPI_CAL_CONFIG_DSID 0x11
#define MIPI_CAL_CONFIG_DSIAB_CLK 0x19
#define MIPI_CAL_CONFIG_DSICD_CLK 0x1a
#define MIPI_CAL_CONFIG_CSIAB_CLK 0x1b
#define MIPI_CAL_CONFIG_CSICD_CLK 0x1c
#define MIPI_CAL_CONFIG_CSIE_CLK 0x1d
/* for data and clock lanes */
#define MIPI_CAL_CONFIG_SELECT (1 << 21)
/* for data lanes */
#define MIPI_CAL_CONFIG_HSPDOS(x) (((x) & 0x1f) << 16)
#define MIPI_CAL_CONFIG_HSPUOS(x) (((x) & 0x1f) << 8)
#define MIPI_CAL_CONFIG_TERMOS(x) (((x) & 0x1f) << 0)
/* for clock lanes */
#define MIPI_CAL_CONFIG_HSCLKPDOSD(x) (((x) & 0x1f) << 8)
#define MIPI_CAL_CONFIG_HSCLKPUOSD(x) (((x) & 0x1f) << 0)
#define MIPI_CAL_BIAS_PAD_CFG0 0x16
#define MIPI_CAL_BIAS_PAD_PDVCLAMP (1 << 1)
#define MIPI_CAL_BIAS_PAD_E_VCLAMP_REF (1 << 0)
#define MIPI_CAL_BIAS_PAD_CFG1 0x17
#define MIPI_CAL_BIAS_PAD_DRV_DN_REF(x) (((x) & 0x7) << 16)
#define MIPI_CAL_BIAS_PAD_CFG2 0x18
#define MIPI_CAL_BIAS_PAD_PDVREG (1 << 1)
static const struct module {
unsigned long reg;
} modules[] = {
{ .reg = MIPI_CAL_CONFIG_CSIA },
{ .reg = MIPI_CAL_CONFIG_CSIB },
{ .reg = MIPI_CAL_CONFIG_CSIC },
{ .reg = MIPI_CAL_CONFIG_CSID },
{ .reg = MIPI_CAL_CONFIG_CSIE },
{ .reg = MIPI_CAL_CONFIG_DSIA },
{ .reg = MIPI_CAL_CONFIG_DSIB },
{ .reg = MIPI_CAL_CONFIG_DSIC },
{ .reg = MIPI_CAL_CONFIG_DSID },
struct tegra_mipi_pad {
unsigned long data;
unsigned long clk;
};
struct tegra_mipi_soc {
bool has_clk_lane;
const struct tegra_mipi_pad *pads;
unsigned int num_pads;
};
struct tegra_mipi {
const struct tegra_mipi_soc *soc;
void __iomem *regs;
struct mutex lock;
struct clk *clk;
@ -90,16 +102,16 @@ struct tegra_mipi_device {
unsigned long pads;
};
static inline unsigned long tegra_mipi_readl(struct tegra_mipi *mipi,
unsigned long reg)
static inline u32 tegra_mipi_readl(struct tegra_mipi *mipi,
unsigned long offset)
{
return readl(mipi->regs + (reg << 2));
return readl(mipi->regs + (offset << 2));
}
static inline void tegra_mipi_writel(struct tegra_mipi *mipi,
unsigned long value, unsigned long reg)
static inline void tegra_mipi_writel(struct tegra_mipi *mipi, u32 value,
unsigned long offset)
{
writel(value, mipi->regs + (reg << 2));
writel(value, mipi->regs + (offset << 2));
}
struct tegra_mipi_device *tegra_mipi_request(struct device *device)
@ -117,36 +129,35 @@ struct tegra_mipi_device *tegra_mipi_request(struct device *device)
dev = kzalloc(sizeof(*dev), GFP_KERNEL);
if (!dev) {
of_node_put(args.np);
err = -ENOMEM;
goto out;
}
dev->pdev = of_find_device_by_node(args.np);
if (!dev->pdev) {
of_node_put(args.np);
err = -ENODEV;
goto free;
}
of_node_put(args.np);
dev->mipi = platform_get_drvdata(dev->pdev);
if (!dev->mipi) {
err = -EPROBE_DEFER;
goto pdev_put;
goto put;
}
of_node_put(args.np);
dev->pads = args.args[0];
dev->device = device;
return dev;
pdev_put:
put:
platform_device_put(dev->pdev);
free:
kfree(dev);
out:
of_node_put(args.np);
return ERR_PTR(err);
}
EXPORT_SYMBOL(tegra_mipi_request);
@ -161,7 +172,7 @@ EXPORT_SYMBOL(tegra_mipi_free);
static int tegra_mipi_wait(struct tegra_mipi *mipi)
{
unsigned long timeout = jiffies + msecs_to_jiffies(250);
unsigned long value;
u32 value;
while (time_before(jiffies, timeout)) {
value = tegra_mipi_readl(mipi, MIPI_CAL_STATUS);
@ -177,8 +188,9 @@ static int tegra_mipi_wait(struct tegra_mipi *mipi)
int tegra_mipi_calibrate(struct tegra_mipi_device *device)
{
unsigned long value;
const struct tegra_mipi_soc *soc = device->mipi->soc;
unsigned int i;
u32 value;
int err;
err = clk_enable(device->mipi->clk);
@ -192,23 +204,35 @@ int tegra_mipi_calibrate(struct tegra_mipi_device *device)
value |= MIPI_CAL_BIAS_PAD_E_VCLAMP_REF;
tegra_mipi_writel(device->mipi, value, MIPI_CAL_BIAS_PAD_CFG0);
tegra_mipi_writel(device->mipi, MIPI_CAL_BIAS_PAD_DRV_DN_REF(2),
MIPI_CAL_BIAS_PAD_CFG1);
value = tegra_mipi_readl(device->mipi, MIPI_CAL_BIAS_PAD_CFG2);
value &= ~MIPI_CAL_BIAS_PAD_PDVREG;
tegra_mipi_writel(device->mipi, value, MIPI_CAL_BIAS_PAD_CFG2);
for (i = 0; i < ARRAY_SIZE(modules); i++) {
if (device->pads & BIT(i))
value = MIPI_CAL_CONFIG_SELECT |
MIPI_CAL_CONFIG_HSPDOS(0) |
MIPI_CAL_CONFIG_HSPUOS(4) |
MIPI_CAL_CONFIG_TERMOS(5);
else
value = 0;
for (i = 0; i < soc->num_pads; i++) {
u32 clk = 0, data = 0;
tegra_mipi_writel(device->mipi, value, modules[i].reg);
if (device->pads & BIT(i)) {
data = MIPI_CAL_CONFIG_SELECT |
MIPI_CAL_CONFIG_HSPDOS(0) |
MIPI_CAL_CONFIG_HSPUOS(4) |
MIPI_CAL_CONFIG_TERMOS(5);
clk = MIPI_CAL_CONFIG_SELECT |
MIPI_CAL_CONFIG_HSCLKPDOSD(0) |
MIPI_CAL_CONFIG_HSCLKPUOSD(4);
}
tegra_mipi_writel(device->mipi, data, soc->pads[i].data);
if (soc->has_clk_lane)
tegra_mipi_writel(device->mipi, clk, soc->pads[i].clk);
}
tegra_mipi_writel(device->mipi, MIPI_CAL_CTRL_START, MIPI_CAL_CTRL);
value = tegra_mipi_readl(device->mipi, MIPI_CAL_CTRL);
value |= MIPI_CAL_CTRL_START;
tegra_mipi_writel(device->mipi, value, MIPI_CAL_CTRL);
err = tegra_mipi_wait(device->mipi);
@ -219,16 +243,63 @@ int tegra_mipi_calibrate(struct tegra_mipi_device *device)
}
EXPORT_SYMBOL(tegra_mipi_calibrate);
static const struct tegra_mipi_pad tegra114_mipi_pads[] = {
{ .data = MIPI_CAL_CONFIG_CSIA },
{ .data = MIPI_CAL_CONFIG_CSIB },
{ .data = MIPI_CAL_CONFIG_CSIC },
{ .data = MIPI_CAL_CONFIG_CSID },
{ .data = MIPI_CAL_CONFIG_CSIE },
{ .data = MIPI_CAL_CONFIG_DSIA },
{ .data = MIPI_CAL_CONFIG_DSIB },
{ .data = MIPI_CAL_CONFIG_DSIC },
{ .data = MIPI_CAL_CONFIG_DSID },
};
static const struct tegra_mipi_soc tegra114_mipi_soc = {
.has_clk_lane = false,
.pads = tegra114_mipi_pads,
.num_pads = ARRAY_SIZE(tegra114_mipi_pads),
};
static const struct tegra_mipi_pad tegra124_mipi_pads[] = {
{ .data = MIPI_CAL_CONFIG_CSIA, .clk = MIPI_CAL_CONFIG_CSIAB_CLK },
{ .data = MIPI_CAL_CONFIG_CSIB, .clk = MIPI_CAL_CONFIG_CSIAB_CLK },
{ .data = MIPI_CAL_CONFIG_CSIC, .clk = MIPI_CAL_CONFIG_CSICD_CLK },
{ .data = MIPI_CAL_CONFIG_CSID, .clk = MIPI_CAL_CONFIG_CSICD_CLK },
{ .data = MIPI_CAL_CONFIG_CSIE, .clk = MIPI_CAL_CONFIG_CSIE_CLK },
{ .data = MIPI_CAL_CONFIG_DSIA, .clk = MIPI_CAL_CONFIG_DSIAB_CLK },
{ .data = MIPI_CAL_CONFIG_DSIB, .clk = MIPI_CAL_CONFIG_DSIAB_CLK },
};
static const struct tegra_mipi_soc tegra124_mipi_soc = {
.has_clk_lane = true,
.pads = tegra124_mipi_pads,
.num_pads = ARRAY_SIZE(tegra124_mipi_pads),
};
static struct of_device_id tegra_mipi_of_match[] = {
{ .compatible = "nvidia,tegra114-mipi", .data = &tegra114_mipi_soc },
{ .compatible = "nvidia,tegra124-mipi", .data = &tegra124_mipi_soc },
{ },
};
static int tegra_mipi_probe(struct platform_device *pdev)
{
const struct of_device_id *match;
struct tegra_mipi *mipi;
struct resource *res;
int err;
match = of_match_node(tegra_mipi_of_match, pdev->dev.of_node);
if (!match)
return -ENODEV;
mipi = devm_kzalloc(&pdev->dev, sizeof(*mipi), GFP_KERNEL);
if (!mipi)
return -ENOMEM;
mipi->soc = match->data;
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
mipi->regs = devm_ioremap_resource(&pdev->dev, res);
if (IS_ERR(mipi->regs))
@ -260,11 +331,6 @@ static int tegra_mipi_remove(struct platform_device *pdev)
return 0;
}
static struct of_device_id tegra_mipi_of_match[] = {
{ .compatible = "nvidia,tegra114-mipi", },
{ },
};
struct platform_driver tegra_mipi_driver = {
.driver = {
.name = "tegra-mipi",

27
include/trace/events/host1x.h
Просмотреть файл

@ -29,6 +29,8 @@
#include <linux/ktime.h>
#include <linux/tracepoint.h>
struct host1x_bo;
DECLARE_EVENT_CLASS(host1x,
TP_PROTO(const char *name),
TP_ARGS(name),
@ -79,14 +81,14 @@ TRACE_EVENT(host1x_cdma_push,
);
TRACE_EVENT(host1x_cdma_push_gather,
TP_PROTO(const char *name, u32 mem_id,
TP_PROTO(const char *name, struct host1x_bo *bo,
u32 words, u32 offset, void *cmdbuf),
TP_ARGS(name, mem_id, words, offset, cmdbuf),
TP_ARGS(name, bo, words, offset, cmdbuf),
TP_STRUCT__entry(
__field(const char *, name)
__field(u32, mem_id)
__field(struct host1x_bo *, bo)
__field(u32, words)
__field(u32, offset)
__field(bool, cmdbuf)
@ -100,13 +102,13 @@ TRACE_EVENT(host1x_cdma_push_gather,
}
__entry->cmdbuf = cmdbuf;
__entry->name = name;
__entry->mem_id = mem_id;
__entry->bo = bo;
__entry->words = words;
__entry->offset = offset;
),
TP_printk("name=%s, mem_id=%08x, words=%u, offset=%d, contents=[%s]",
__entry->name, __entry->mem_id,
TP_printk("name=%s, bo=%p, words=%u, offset=%d, contents=[%s]",
__entry->name, __entry->bo,
__entry->words, __entry->offset,
__print_hex(__get_dynamic_array(cmdbuf),
__entry->cmdbuf ? __entry->words * 4 : 0))
@ -221,12 +223,13 @@ TRACE_EVENT(host1x_syncpt_load_min,
);
TRACE_EVENT(host1x_syncpt_wait_check,
TP_PROTO(void *mem_id, u32 offset, u32 syncpt_id, u32 thresh, u32 min),
TP_PROTO(struct host1x_bo *bo, u32 offset, u32 syncpt_id, u32 thresh,
u32 min),
TP_ARGS(mem_id, offset, syncpt_id, thresh, min),
TP_ARGS(bo, offset, syncpt_id, thresh, min),
TP_STRUCT__entry(
__field(void *, mem_id)
__field(struct host1x_bo *, bo)
__field(u32, offset)
__field(u32, syncpt_id)
__field(u32, thresh)
@ -234,15 +237,15 @@ TRACE_EVENT(host1x_syncpt_wait_check,
),
TP_fast_assign(
__entry->mem_id = mem_id;
__entry->bo = bo;
__entry->offset = offset;
__entry->syncpt_id = syncpt_id;
__entry->thresh = thresh;
__entry->min = min;
),
TP_printk("mem_id=%p, offset=%05x, id=%d, thresh=%d, current=%d",
__entry->mem_id, __entry->offset,
TP_printk("bo=%p, offset=%05x, id=%d, thresh=%d, current=%d",
__entry->bo, __entry->offset,
__entry->syncpt_id, __entry->thresh,
__entry->min)
);