From 9d77db3c730780c8ef5ccd4b66403ff5675cfe4e Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Mon, 13 May 2024 10:30:14 +0000
Subject: [PATCH] modify sin led gpio
---
kernel/drivers/gpu/drm/hisilicon/hibmc/hibmc_ttm.c | 521 ++-------------------------------------------------------
1 files changed, 19 insertions(+), 502 deletions(-)
diff --git a/kernel/drivers/gpu/drm/hisilicon/hibmc/hibmc_ttm.c b/kernel/drivers/gpu/drm/hisilicon/hibmc/hibmc_ttm.c
index 4871025..602ece1 100644
--- a/kernel/drivers/gpu/drm/hisilicon/hibmc/hibmc_ttm.c
+++ b/kernel/drivers/gpu/drm/hisilicon/hibmc/hibmc_ttm.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/* Hisilicon Hibmc SoC drm driver
*
* Based on the bochs drm driver.
@@ -8,537 +9,53 @@
* Rongrong Zou <zourongrong@huawei.com>
* Rongrong Zou <zourongrong@gmail.com>
* Jianhua Li <lijianhua@huawei.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
*/
+#include <linux/pci.h>
+
#include <drm/drm_atomic_helper.h>
-#include <drm/ttm/ttm_page_alloc.h>
+#include <drm/drm_gem.h>
+#include <drm/drm_gem_framebuffer_helper.h>
+#include <drm/drm_gem_vram_helper.h>
+#include <drm/drm_print.h>
#include "hibmc_drm_drv.h"
-#define DRM_FILE_PAGE_OFFSET (0x100000000ULL >> PAGE_SHIFT)
-
-static inline struct hibmc_drm_private *
-hibmc_bdev(struct ttm_bo_device *bd)
-{
- return container_of(bd, struct hibmc_drm_private, bdev);
-}
-
-static int
-hibmc_ttm_mem_global_init(struct drm_global_reference *ref)
-{
- return ttm_mem_global_init(ref->object);
-}
-
-static void
-hibmc_ttm_mem_global_release(struct drm_global_reference *ref)
-{
- ttm_mem_global_release(ref->object);
-}
-
-static int hibmc_ttm_global_init(struct hibmc_drm_private *hibmc)
-{
- int ret;
-
- hibmc->mem_global_ref.global_type = DRM_GLOBAL_TTM_MEM;
- hibmc->mem_global_ref.size = sizeof(struct ttm_mem_global);
- hibmc->mem_global_ref.init = &hibmc_ttm_mem_global_init;
- hibmc->mem_global_ref.release = &hibmc_ttm_mem_global_release;
- ret = drm_global_item_ref(&hibmc->mem_global_ref);
- if (ret) {
- DRM_ERROR("could not get ref on ttm global: %d\n", ret);
- return ret;
- }
-
- hibmc->bo_global_ref.mem_glob =
- hibmc->mem_global_ref.object;
- hibmc->bo_global_ref.ref.global_type = DRM_GLOBAL_TTM_BO;
- hibmc->bo_global_ref.ref.size = sizeof(struct ttm_bo_global);
- hibmc->bo_global_ref.ref.init = &ttm_bo_global_init;
- hibmc->bo_global_ref.ref.release = &ttm_bo_global_release;
- ret = drm_global_item_ref(&hibmc->bo_global_ref.ref);
- if (ret) {
- DRM_ERROR("failed setting up TTM BO subsystem: %d\n", ret);
- drm_global_item_unref(&hibmc->mem_global_ref);
- return ret;
- }
- return 0;
-}
-
-static void
-hibmc_ttm_global_release(struct hibmc_drm_private *hibmc)
-{
- drm_global_item_unref(&hibmc->bo_global_ref.ref);
- drm_global_item_unref(&hibmc->mem_global_ref);
- hibmc->mem_global_ref.release = NULL;
-}
-
-static void hibmc_bo_ttm_destroy(struct ttm_buffer_object *tbo)
-{
- struct hibmc_bo *bo = container_of(tbo, struct hibmc_bo, bo);
-
- drm_gem_object_release(&bo->gem);
- kfree(bo);
-}
-
-static bool hibmc_ttm_bo_is_hibmc_bo(struct ttm_buffer_object *bo)
-{
- return bo->destroy == &hibmc_bo_ttm_destroy;
-}
-
-static int
-hibmc_bo_init_mem_type(struct ttm_bo_device *bdev, u32 type,
- struct ttm_mem_type_manager *man)
-{
- switch (type) {
- case TTM_PL_SYSTEM:
- man->flags = TTM_MEMTYPE_FLAG_MAPPABLE;
- man->available_caching = TTM_PL_MASK_CACHING;
- man->default_caching = TTM_PL_FLAG_CACHED;
- break;
- case TTM_PL_VRAM:
- man->func = &ttm_bo_manager_func;
- man->flags = TTM_MEMTYPE_FLAG_FIXED |
- TTM_MEMTYPE_FLAG_MAPPABLE;
- man->available_caching = TTM_PL_FLAG_UNCACHED |
- TTM_PL_FLAG_WC;
- man->default_caching = TTM_PL_FLAG_WC;
- break;
- default:
- DRM_ERROR("unsupported memory type %u\n", type);
- return -EINVAL;
- }
- return 0;
-}
-
-void hibmc_ttm_placement(struct hibmc_bo *bo, int domain)
-{
- u32 count = 0;
- u32 i;
-
- bo->placement.placement = bo->placements;
- bo->placement.busy_placement = bo->placements;
- if (domain & TTM_PL_FLAG_VRAM)
- bo->placements[count++].flags = TTM_PL_FLAG_WC |
- TTM_PL_FLAG_UNCACHED | TTM_PL_FLAG_VRAM;
- if (domain & TTM_PL_FLAG_SYSTEM)
- bo->placements[count++].flags = TTM_PL_MASK_CACHING |
- TTM_PL_FLAG_SYSTEM;
- if (!count)
- bo->placements[count++].flags = TTM_PL_MASK_CACHING |
- TTM_PL_FLAG_SYSTEM;
-
- bo->placement.num_placement = count;
- bo->placement.num_busy_placement = count;
- for (i = 0; i < count; i++) {
- bo->placements[i].fpfn = 0;
- bo->placements[i].lpfn = 0;
- }
-}
-
-static void
-hibmc_bo_evict_flags(struct ttm_buffer_object *bo, struct ttm_placement *pl)
-{
- struct hibmc_bo *hibmcbo = hibmc_bo(bo);
-
- if (!hibmc_ttm_bo_is_hibmc_bo(bo))
- return;
-
- hibmc_ttm_placement(hibmcbo, TTM_PL_FLAG_SYSTEM);
- *pl = hibmcbo->placement;
-}
-
-static int hibmc_bo_verify_access(struct ttm_buffer_object *bo,
- struct file *filp)
-{
- struct hibmc_bo *hibmcbo = hibmc_bo(bo);
-
- return drm_vma_node_verify_access(&hibmcbo->gem.vma_node,
- filp->private_data);
-}
-
-static int hibmc_ttm_io_mem_reserve(struct ttm_bo_device *bdev,
- struct ttm_mem_reg *mem)
-{
- struct ttm_mem_type_manager *man = &bdev->man[mem->mem_type];
- struct hibmc_drm_private *hibmc = hibmc_bdev(bdev);
-
- mem->bus.addr = NULL;
- mem->bus.offset = 0;
- mem->bus.size = mem->num_pages << PAGE_SHIFT;
- mem->bus.base = 0;
- mem->bus.is_iomem = false;
- if (!(man->flags & TTM_MEMTYPE_FLAG_MAPPABLE))
- return -EINVAL;
- switch (mem->mem_type) {
- case TTM_PL_SYSTEM:
- /* system memory */
- return 0;
- case TTM_PL_VRAM:
- mem->bus.offset = mem->start << PAGE_SHIFT;
- mem->bus.base = pci_resource_start(hibmc->dev->pdev, 0);
- mem->bus.is_iomem = true;
- break;
- default:
- return -EINVAL;
- }
- return 0;
-}
-
-static void hibmc_ttm_backend_destroy(struct ttm_tt *tt)
-{
- ttm_tt_fini(tt);
- kfree(tt);
-}
-
-static struct ttm_backend_func hibmc_tt_backend_func = {
- .destroy = &hibmc_ttm_backend_destroy,
-};
-
-static struct ttm_tt *hibmc_ttm_tt_create(struct ttm_buffer_object *bo,
- u32 page_flags)
-{
- struct ttm_tt *tt;
- int ret;
-
- tt = kzalloc(sizeof(*tt), GFP_KERNEL);
- if (!tt) {
- DRM_ERROR("failed to allocate ttm_tt\n");
- return NULL;
- }
- tt->func = &hibmc_tt_backend_func;
- ret = ttm_tt_init(tt, bo, page_flags);
- if (ret) {
- DRM_ERROR("failed to initialize ttm_tt: %d\n", ret);
- kfree(tt);
- return NULL;
- }
- return tt;
-}
-
-struct ttm_bo_driver hibmc_bo_driver = {
- .ttm_tt_create = hibmc_ttm_tt_create,
- .init_mem_type = hibmc_bo_init_mem_type,
- .evict_flags = hibmc_bo_evict_flags,
- .move = NULL,
- .verify_access = hibmc_bo_verify_access,
- .io_mem_reserve = &hibmc_ttm_io_mem_reserve,
- .io_mem_free = NULL,
-};
-
int hibmc_mm_init(struct hibmc_drm_private *hibmc)
{
+ struct drm_vram_mm *vmm;
int ret;
struct drm_device *dev = hibmc->dev;
- struct ttm_bo_device *bdev = &hibmc->bdev;
- ret = hibmc_ttm_global_init(hibmc);
- if (ret)
- return ret;
-
- ret = ttm_bo_device_init(&hibmc->bdev,
- hibmc->bo_global_ref.ref.object,
- &hibmc_bo_driver,
- dev->anon_inode->i_mapping,
- DRM_FILE_PAGE_OFFSET,
- true);
- if (ret) {
- hibmc_ttm_global_release(hibmc);
- DRM_ERROR("error initializing bo driver: %d\n", ret);
+ vmm = drm_vram_helper_alloc_mm(dev,
+ pci_resource_start(dev->pdev, 0),
+ hibmc->fb_size);
+ if (IS_ERR(vmm)) {
+ ret = PTR_ERR(vmm);
+ drm_err(dev, "Error initializing VRAM MM; %d\n", ret);
return ret;
}
- ret = ttm_bo_init_mm(bdev, TTM_PL_VRAM,
- hibmc->fb_size >> PAGE_SHIFT);
- if (ret) {
- hibmc_ttm_global_release(hibmc);
- DRM_ERROR("failed ttm VRAM init: %d\n", ret);
- return ret;
- }
-
- hibmc->mm_inited = true;
return 0;
}
void hibmc_mm_fini(struct hibmc_drm_private *hibmc)
{
- if (!hibmc->mm_inited)
+ if (!hibmc->dev->vram_mm)
return;
- ttm_bo_device_release(&hibmc->bdev);
- hibmc_ttm_global_release(hibmc);
- hibmc->mm_inited = false;
-}
-
-static void hibmc_bo_unref(struct hibmc_bo **bo)
-{
- struct ttm_buffer_object *tbo;
-
- if ((*bo) == NULL)
- return;
-
- tbo = &((*bo)->bo);
- ttm_bo_unref(&tbo);
- *bo = NULL;
-}
-
-int hibmc_bo_create(struct drm_device *dev, int size, int align,
- u32 flags, struct hibmc_bo **phibmcbo)
-{
- struct hibmc_drm_private *hibmc = dev->dev_private;
- struct hibmc_bo *hibmcbo;
- size_t acc_size;
- int ret;
-
- hibmcbo = kzalloc(sizeof(*hibmcbo), GFP_KERNEL);
- if (!hibmcbo) {
- DRM_ERROR("failed to allocate hibmcbo\n");
- return -ENOMEM;
- }
- ret = drm_gem_object_init(dev, &hibmcbo->gem, size);
- if (ret) {
- DRM_ERROR("failed to initialize drm gem object: %d\n", ret);
- kfree(hibmcbo);
- return ret;
- }
-
- hibmcbo->bo.bdev = &hibmc->bdev;
-
- hibmc_ttm_placement(hibmcbo, TTM_PL_FLAG_VRAM | TTM_PL_FLAG_SYSTEM);
-
- acc_size = ttm_bo_dma_acc_size(&hibmc->bdev, size,
- sizeof(struct hibmc_bo));
-
- ret = ttm_bo_init(&hibmc->bdev, &hibmcbo->bo, size,
- ttm_bo_type_device, &hibmcbo->placement,
- align >> PAGE_SHIFT, false, acc_size,
- NULL, NULL, hibmc_bo_ttm_destroy);
- if (ret) {
- hibmc_bo_unref(&hibmcbo);
- DRM_ERROR("failed to initialize ttm_bo: %d\n", ret);
- return ret;
- }
-
- *phibmcbo = hibmcbo;
- return 0;
-}
-
-int hibmc_bo_pin(struct hibmc_bo *bo, u32 pl_flag, u64 *gpu_addr)
-{
- struct ttm_operation_ctx ctx = { false, false };
- int i, ret;
-
- if (bo->pin_count) {
- bo->pin_count++;
- if (gpu_addr)
- *gpu_addr = bo->bo.offset;
- return 0;
- }
-
- hibmc_ttm_placement(bo, pl_flag);
- for (i = 0; i < bo->placement.num_placement; i++)
- bo->placements[i].flags |= TTM_PL_FLAG_NO_EVICT;
- ret = ttm_bo_validate(&bo->bo, &bo->placement, &ctx);
- if (ret)
- return ret;
-
- bo->pin_count = 1;
- if (gpu_addr)
- *gpu_addr = bo->bo.offset;
- return 0;
-}
-
-int hibmc_bo_unpin(struct hibmc_bo *bo)
-{
- struct ttm_operation_ctx ctx = { false, false };
- int i, ret;
-
- if (!bo->pin_count) {
- DRM_ERROR("unpin bad %p\n", bo);
- return 0;
- }
- bo->pin_count--;
- if (bo->pin_count)
- return 0;
-
- for (i = 0; i < bo->placement.num_placement ; i++)
- bo->placements[i].flags &= ~TTM_PL_FLAG_NO_EVICT;
- ret = ttm_bo_validate(&bo->bo, &bo->placement, &ctx);
- if (ret) {
- DRM_ERROR("validate failed for unpin: %d\n", ret);
- return ret;
- }
-
- return 0;
-}
-
-int hibmc_mmap(struct file *filp, struct vm_area_struct *vma)
-{
- struct drm_file *file_priv;
- struct hibmc_drm_private *hibmc;
-
- if (unlikely(vma->vm_pgoff < DRM_FILE_PAGE_OFFSET))
- return -EINVAL;
-
- file_priv = filp->private_data;
- hibmc = file_priv->minor->dev->dev_private;
- return ttm_bo_mmap(filp, vma, &hibmc->bdev);
-}
-
-int hibmc_gem_create(struct drm_device *dev, u32 size, bool iskernel,
- struct drm_gem_object **obj)
-{
- struct hibmc_bo *hibmcbo;
- int ret;
-
- *obj = NULL;
-
- size = PAGE_ALIGN(size);
- if (size == 0) {
- DRM_ERROR("error: zero size\n");
- return -EINVAL;
- }
-
- ret = hibmc_bo_create(dev, size, 0, 0, &hibmcbo);
- if (ret) {
- if (ret != -ERESTARTSYS)
- DRM_ERROR("failed to allocate GEM object: %d\n", ret);
- return ret;
- }
- *obj = &hibmcbo->gem;
- return 0;
+ drm_vram_helper_release_mm(hibmc->dev);
}
int hibmc_dumb_create(struct drm_file *file, struct drm_device *dev,
struct drm_mode_create_dumb *args)
{
- struct drm_gem_object *gobj;
- u32 handle;
- int ret;
-
- args->pitch = ALIGN(args->width * DIV_ROUND_UP(args->bpp, 8), 16);
- args->size = args->pitch * args->height;
-
- ret = hibmc_gem_create(dev, args->size, false,
- &gobj);
- if (ret) {
- DRM_ERROR("failed to create GEM object: %d\n", ret);
- return ret;
- }
-
- ret = drm_gem_handle_create(file, gobj, &handle);
- drm_gem_object_put_unlocked(gobj);
- if (ret) {
- DRM_ERROR("failed to unreference GEM object: %d\n", ret);
- return ret;
- }
-
- args->handle = handle;
- return 0;
-}
-
-void hibmc_gem_free_object(struct drm_gem_object *obj)
-{
- struct hibmc_bo *hibmcbo = gem_to_hibmc_bo(obj);
-
- hibmc_bo_unref(&hibmcbo);
-}
-
-static u64 hibmc_bo_mmap_offset(struct hibmc_bo *bo)
-{
- return drm_vma_node_offset_addr(&bo->bo.vma_node);
-}
-
-int hibmc_dumb_mmap_offset(struct drm_file *file, struct drm_device *dev,
- u32 handle, u64 *offset)
-{
- struct drm_gem_object *obj;
- struct hibmc_bo *bo;
-
- obj = drm_gem_object_lookup(file, handle);
- if (!obj)
- return -ENOENT;
-
- bo = gem_to_hibmc_bo(obj);
- *offset = hibmc_bo_mmap_offset(bo);
-
- drm_gem_object_put_unlocked(obj);
- return 0;
-}
-
-static void hibmc_user_framebuffer_destroy(struct drm_framebuffer *fb)
-{
- struct hibmc_framebuffer *hibmc_fb = to_hibmc_framebuffer(fb);
-
- drm_gem_object_put_unlocked(hibmc_fb->obj);
- drm_framebuffer_cleanup(fb);
- kfree(hibmc_fb);
-}
-
-static const struct drm_framebuffer_funcs hibmc_fb_funcs = {
- .destroy = hibmc_user_framebuffer_destroy,
-};
-
-struct hibmc_framebuffer *
-hibmc_framebuffer_init(struct drm_device *dev,
- const struct drm_mode_fb_cmd2 *mode_cmd,
- struct drm_gem_object *obj)
-{
- struct hibmc_framebuffer *hibmc_fb;
- int ret;
-
- hibmc_fb = kzalloc(sizeof(*hibmc_fb), GFP_KERNEL);
- if (!hibmc_fb) {
- DRM_ERROR("failed to allocate hibmc_fb\n");
- return ERR_PTR(-ENOMEM);
- }
-
- drm_helper_mode_fill_fb_struct(dev, &hibmc_fb->fb, mode_cmd);
- hibmc_fb->obj = obj;
- ret = drm_framebuffer_init(dev, &hibmc_fb->fb, &hibmc_fb_funcs);
- if (ret) {
- DRM_ERROR("drm_framebuffer_init failed: %d\n", ret);
- kfree(hibmc_fb);
- return ERR_PTR(ret);
- }
-
- return hibmc_fb;
-}
-
-static struct drm_framebuffer *
-hibmc_user_framebuffer_create(struct drm_device *dev,
- struct drm_file *filp,
- const struct drm_mode_fb_cmd2 *mode_cmd)
-{
- struct drm_gem_object *obj;
- struct hibmc_framebuffer *hibmc_fb;
-
- DRM_DEBUG_DRIVER("%dx%d, format %c%c%c%c\n",
- mode_cmd->width, mode_cmd->height,
- (mode_cmd->pixel_format) & 0xff,
- (mode_cmd->pixel_format >> 8) & 0xff,
- (mode_cmd->pixel_format >> 16) & 0xff,
- (mode_cmd->pixel_format >> 24) & 0xff);
-
- obj = drm_gem_object_lookup(filp, mode_cmd->handles[0]);
- if (!obj)
- return ERR_PTR(-ENOENT);
-
- hibmc_fb = hibmc_framebuffer_init(dev, mode_cmd, obj);
- if (IS_ERR(hibmc_fb)) {
- drm_gem_object_put_unlocked(obj);
- return ERR_PTR((long)hibmc_fb);
- }
- return &hibmc_fb->fb;
+ return drm_gem_vram_fill_create_dumb(file, dev, 0, 128, args);
}
const struct drm_mode_config_funcs hibmc_mode_funcs = {
+ .mode_valid = drm_vram_helper_mode_valid,
.atomic_check = drm_atomic_helper_check,
.atomic_commit = drm_atomic_helper_commit,
- .fb_create = hibmc_user_framebuffer_create,
+ .fb_create = drm_gem_fb_create,
};
--
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