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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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fcda50c8f4
Global symbols in the kernel should be prefixed by the name of the subsystem and/or driver to avoid conflicts when all code is built-in. In this case, function names like 'hdmi_register' or 'hdmi_set_mode' are way too generic for an MSM specific DRM driver, so I'm renaming them all to msm_hdmi_* here. I also rename a lot of the 'static' symbols along with the global names for consistency, even though those are relatively harmless; they might only be slightly confusing when they show up in backtraces. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Rob Clark <robdclark@gmail.com>
332 lines
10 KiB
C
332 lines
10 KiB
C
/*
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* Copyright (C) 2013 Red Hat
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* Author: Rob Clark <robdclark@gmail.com>
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 as published by
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* the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License along with
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* this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef __MSM_DRV_H__
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#define __MSM_DRV_H__
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#include <linux/kernel.h>
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#include <linux/clk.h>
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#include <linux/cpufreq.h>
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#include <linux/module.h>
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#include <linux/component.h>
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#include <linux/platform_device.h>
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#include <linux/pm.h>
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#include <linux/pm_runtime.h>
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#include <linux/slab.h>
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#include <linux/list.h>
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#include <linux/iommu.h>
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#include <linux/types.h>
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#include <linux/of_graph.h>
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#include <linux/of_device.h>
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#include <asm/sizes.h>
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#include <drm/drmP.h>
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#include <drm/drm_atomic.h>
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#include <drm/drm_atomic_helper.h>
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#include <drm/drm_crtc_helper.h>
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#include <drm/drm_plane_helper.h>
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#include <drm/drm_fb_helper.h>
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#include <drm/msm_drm.h>
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#include <drm/drm_gem.h>
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struct msm_kms;
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struct msm_gpu;
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struct msm_mmu;
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struct msm_rd_state;
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struct msm_perf_state;
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struct msm_gem_submit;
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#define NUM_DOMAINS 2 /* one for KMS, then one per gpu core (?) */
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struct msm_file_private {
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/* currently we don't do anything useful with this.. but when
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* per-context address spaces are supported we'd keep track of
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* the context's page-tables here.
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*/
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int dummy;
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};
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enum msm_mdp_plane_property {
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PLANE_PROP_ZPOS,
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PLANE_PROP_ALPHA,
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PLANE_PROP_PREMULTIPLIED,
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PLANE_PROP_MAX_NUM
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};
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struct msm_vblank_ctrl {
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struct work_struct work;
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struct list_head event_list;
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spinlock_t lock;
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};
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struct msm_drm_private {
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struct msm_kms *kms;
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/* subordinate devices, if present: */
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struct platform_device *gpu_pdev;
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/* possibly this should be in the kms component, but it is
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* shared by both mdp4 and mdp5..
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*/
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struct hdmi *hdmi;
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/* eDP is for mdp5 only, but kms has not been created
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* when edp_bind() and edp_init() are called. Here is the only
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* place to keep the edp instance.
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*/
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struct msm_edp *edp;
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/* DSI is shared by mdp4 and mdp5 */
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struct msm_dsi *dsi[2];
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/* when we have more than one 'msm_gpu' these need to be an array: */
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struct msm_gpu *gpu;
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struct msm_file_private *lastctx;
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struct drm_fb_helper *fbdev;
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uint32_t next_fence, completed_fence;
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wait_queue_head_t fence_event;
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struct msm_rd_state *rd;
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struct msm_perf_state *perf;
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/* list of GEM objects: */
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struct list_head inactive_list;
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struct workqueue_struct *wq;
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/* callbacks deferred until bo is inactive: */
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struct list_head fence_cbs;
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/* crtcs pending async atomic updates: */
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uint32_t pending_crtcs;
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wait_queue_head_t pending_crtcs_event;
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/* registered MMUs: */
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unsigned int num_mmus;
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struct msm_mmu *mmus[NUM_DOMAINS];
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unsigned int num_planes;
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struct drm_plane *planes[8];
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unsigned int num_crtcs;
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struct drm_crtc *crtcs[8];
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unsigned int num_encoders;
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struct drm_encoder *encoders[8];
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unsigned int num_bridges;
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struct drm_bridge *bridges[8];
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unsigned int num_connectors;
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struct drm_connector *connectors[8];
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/* Properties */
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struct drm_property *plane_property[PLANE_PROP_MAX_NUM];
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/* VRAM carveout, used when no IOMMU: */
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struct {
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unsigned long size;
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dma_addr_t paddr;
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/* NOTE: mm managed at the page level, size is in # of pages
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* and position mm_node->start is in # of pages:
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*/
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struct drm_mm mm;
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} vram;
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struct msm_vblank_ctrl vblank_ctrl;
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};
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struct msm_format {
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uint32_t pixel_format;
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};
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/* callback from wq once fence has passed: */
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struct msm_fence_cb {
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struct work_struct work;
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uint32_t fence;
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void (*func)(struct msm_fence_cb *cb);
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};
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void __msm_fence_worker(struct work_struct *work);
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#define INIT_FENCE_CB(_cb, _func) do { \
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INIT_WORK(&(_cb)->work, __msm_fence_worker); \
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(_cb)->func = _func; \
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} while (0)
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int msm_atomic_check(struct drm_device *dev,
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struct drm_atomic_state *state);
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int msm_atomic_commit(struct drm_device *dev,
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struct drm_atomic_state *state, bool async);
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int msm_register_mmu(struct drm_device *dev, struct msm_mmu *mmu);
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int msm_wait_fence(struct drm_device *dev, uint32_t fence,
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ktime_t *timeout, bool interruptible);
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int msm_queue_fence_cb(struct drm_device *dev,
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struct msm_fence_cb *cb, uint32_t fence);
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void msm_update_fence(struct drm_device *dev, uint32_t fence);
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int msm_ioctl_gem_submit(struct drm_device *dev, void *data,
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struct drm_file *file);
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int msm_gem_mmap_obj(struct drm_gem_object *obj,
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struct vm_area_struct *vma);
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int msm_gem_mmap(struct file *filp, struct vm_area_struct *vma);
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int msm_gem_fault(struct vm_area_struct *vma, struct vm_fault *vmf);
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uint64_t msm_gem_mmap_offset(struct drm_gem_object *obj);
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int msm_gem_get_iova_locked(struct drm_gem_object *obj, int id,
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uint32_t *iova);
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int msm_gem_get_iova(struct drm_gem_object *obj, int id, uint32_t *iova);
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uint32_t msm_gem_iova(struct drm_gem_object *obj, int id);
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struct page **msm_gem_get_pages(struct drm_gem_object *obj);
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void msm_gem_put_pages(struct drm_gem_object *obj);
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void msm_gem_put_iova(struct drm_gem_object *obj, int id);
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int msm_gem_dumb_create(struct drm_file *file, struct drm_device *dev,
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struct drm_mode_create_dumb *args);
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int msm_gem_dumb_map_offset(struct drm_file *file, struct drm_device *dev,
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uint32_t handle, uint64_t *offset);
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struct sg_table *msm_gem_prime_get_sg_table(struct drm_gem_object *obj);
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void *msm_gem_prime_vmap(struct drm_gem_object *obj);
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void msm_gem_prime_vunmap(struct drm_gem_object *obj, void *vaddr);
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int msm_gem_prime_mmap(struct drm_gem_object *obj, struct vm_area_struct *vma);
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struct drm_gem_object *msm_gem_prime_import_sg_table(struct drm_device *dev,
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struct dma_buf_attachment *attach, struct sg_table *sg);
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int msm_gem_prime_pin(struct drm_gem_object *obj);
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void msm_gem_prime_unpin(struct drm_gem_object *obj);
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void *msm_gem_vaddr_locked(struct drm_gem_object *obj);
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void *msm_gem_vaddr(struct drm_gem_object *obj);
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int msm_gem_queue_inactive_cb(struct drm_gem_object *obj,
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struct msm_fence_cb *cb);
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void msm_gem_move_to_active(struct drm_gem_object *obj,
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struct msm_gpu *gpu, bool write, uint32_t fence);
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void msm_gem_move_to_inactive(struct drm_gem_object *obj);
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int msm_gem_cpu_prep(struct drm_gem_object *obj, uint32_t op,
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ktime_t *timeout);
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int msm_gem_cpu_fini(struct drm_gem_object *obj);
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void msm_gem_free_object(struct drm_gem_object *obj);
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int msm_gem_new_handle(struct drm_device *dev, struct drm_file *file,
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uint32_t size, uint32_t flags, uint32_t *handle);
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struct drm_gem_object *msm_gem_new(struct drm_device *dev,
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uint32_t size, uint32_t flags);
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struct drm_gem_object *msm_gem_import(struct drm_device *dev,
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uint32_t size, struct sg_table *sgt);
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int msm_framebuffer_prepare(struct drm_framebuffer *fb, int id);
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void msm_framebuffer_cleanup(struct drm_framebuffer *fb, int id);
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uint32_t msm_framebuffer_iova(struct drm_framebuffer *fb, int id, int plane);
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struct drm_gem_object *msm_framebuffer_bo(struct drm_framebuffer *fb, int plane);
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const struct msm_format *msm_framebuffer_format(struct drm_framebuffer *fb);
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struct drm_framebuffer *msm_framebuffer_init(struct drm_device *dev,
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const struct drm_mode_fb_cmd2 *mode_cmd, struct drm_gem_object **bos);
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struct drm_framebuffer *msm_framebuffer_create(struct drm_device *dev,
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struct drm_file *file, const struct drm_mode_fb_cmd2 *mode_cmd);
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struct drm_fb_helper *msm_fbdev_init(struct drm_device *dev);
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void msm_fbdev_free(struct drm_device *dev);
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struct hdmi;
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int msm_hdmi_modeset_init(struct hdmi *hdmi, struct drm_device *dev,
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struct drm_encoder *encoder);
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void __init msm_hdmi_register(void);
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void __exit msm_hdmi_unregister(void);
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struct msm_edp;
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void __init msm_edp_register(void);
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void __exit msm_edp_unregister(void);
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int msm_edp_modeset_init(struct msm_edp *edp, struct drm_device *dev,
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struct drm_encoder *encoder);
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struct msm_dsi;
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enum msm_dsi_encoder_id {
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MSM_DSI_VIDEO_ENCODER_ID = 0,
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MSM_DSI_CMD_ENCODER_ID = 1,
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MSM_DSI_ENCODER_NUM = 2
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};
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#ifdef CONFIG_DRM_MSM_DSI
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void __init msm_dsi_register(void);
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void __exit msm_dsi_unregister(void);
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int msm_dsi_modeset_init(struct msm_dsi *msm_dsi, struct drm_device *dev,
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struct drm_encoder *encoders[MSM_DSI_ENCODER_NUM]);
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#else
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static inline void __init msm_dsi_register(void)
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{
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}
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static inline void __exit msm_dsi_unregister(void)
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{
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}
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static inline int msm_dsi_modeset_init(struct msm_dsi *msm_dsi,
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struct drm_device *dev,
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struct drm_encoder *encoders[MSM_DSI_ENCODER_NUM])
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{
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return -EINVAL;
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}
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#endif
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#ifdef CONFIG_DEBUG_FS
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void msm_gem_describe(struct drm_gem_object *obj, struct seq_file *m);
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void msm_gem_describe_objects(struct list_head *list, struct seq_file *m);
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void msm_framebuffer_describe(struct drm_framebuffer *fb, struct seq_file *m);
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int msm_debugfs_late_init(struct drm_device *dev);
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int msm_rd_debugfs_init(struct drm_minor *minor);
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void msm_rd_debugfs_cleanup(struct drm_minor *minor);
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void msm_rd_dump_submit(struct msm_gem_submit *submit);
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int msm_perf_debugfs_init(struct drm_minor *minor);
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void msm_perf_debugfs_cleanup(struct drm_minor *minor);
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#else
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static inline int msm_debugfs_late_init(struct drm_device *dev) { return 0; }
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static inline void msm_rd_dump_submit(struct msm_gem_submit *submit) {}
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#endif
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void __iomem *msm_ioremap(struct platform_device *pdev, const char *name,
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const char *dbgname);
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void msm_writel(u32 data, void __iomem *addr);
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u32 msm_readl(const void __iomem *addr);
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#define DBG(fmt, ...) DRM_DEBUG(fmt"\n", ##__VA_ARGS__)
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#define VERB(fmt, ...) if (0) DRM_DEBUG(fmt"\n", ##__VA_ARGS__)
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static inline bool fence_completed(struct drm_device *dev, uint32_t fence)
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{
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struct msm_drm_private *priv = dev->dev_private;
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return priv->completed_fence >= fence;
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}
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static inline int align_pitch(int width, int bpp)
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{
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int bytespp = (bpp + 7) / 8;
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/* adreno needs pitch aligned to 32 pixels: */
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return bytespp * ALIGN(width, 32);
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}
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/* for the generated headers: */
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#define INVALID_IDX(idx) ({BUG(); 0;})
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#define fui(x) ({BUG(); 0;})
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#define util_float_to_half(x) ({BUG(); 0;})
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#define FIELD(val, name) (((val) & name ## __MASK) >> name ## __SHIFT)
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/* for conditionally setting boolean flag(s): */
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#define COND(bool, val) ((bool) ? (val) : 0)
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#endif /* __MSM_DRV_H__ */
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