From 1543e317f1da31b75942316931e8f491a8920811 Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Thu, 04 Jan 2024 10:08:02 +0000
Subject: [PATCH] disable FB
---
kernel/drivers/gpu/drm/v3d/v3d_drv.h | 212 +++++++++++++++++++++++++++++++++-------------------
1 files changed, 133 insertions(+), 79 deletions(-)
diff --git a/kernel/drivers/gpu/drm/v3d/v3d_drv.h b/kernel/drivers/gpu/drm/v3d/v3d_drv.h
index 0ad73f4..8a39073 100644
--- a/kernel/drivers/gpu/drm/v3d/v3d_drv.h
+++ b/kernel/drivers/gpu/drm/v3d/v3d_drv.h
@@ -1,25 +1,34 @@
// SPDX-License-Identifier: GPL-2.0+
/* Copyright (C) 2015-2018 Broadcom */
-#include <linux/reservation.h>
-#include <linux/mm_types.h>
-#include <drm/drmP.h>
+#include <linux/delay.h>
+#include <linux/mutex.h>
+#include <linux/spinlock_types.h>
+#include <linux/workqueue.h>
+
#include <drm/drm_encoder.h>
#include <drm/drm_gem.h>
+#include <drm/drm_gem_shmem_helper.h>
#include <drm/gpu_scheduler.h>
+
+#include "uapi/drm/v3d_drm.h"
+
+struct clk;
+struct platform_device;
+struct reset_control;
#define GMP_GRANULARITY (128 * 1024)
-/* Enum for each of the V3D queues. We maintain various queue
- * tracking as an array because at some point we'll want to support
- * the TFU (texture formatting unit) as another queue.
- */
+/* Enum for each of the V3D queues. */
enum v3d_queue {
V3D_BIN,
V3D_RENDER,
+ V3D_TFU,
+ V3D_CSD,
+ V3D_CACHE_CLEAN,
};
-#define V3D_MAX_QUEUES (V3D_RENDER + 1)
+#define V3D_MAX_QUEUES (V3D_CACHE_CLEAN + 1)
struct v3d_queue_state {
struct drm_gpu_scheduler sched;
@@ -35,14 +44,14 @@
* and revision.
*/
int ver;
+ bool single_irq_line;
- struct device *dev;
- struct platform_device *pdev;
void __iomem *hub_regs;
void __iomem *core_regs[3];
void __iomem *bridge_regs;
void __iomem *gca_regs;
struct clk *clk;
+ struct reset_control *reset;
/* Virtual and DMA addresses of the single shared page table. */
volatile u32 *pt;
@@ -54,6 +63,8 @@
*/
void *mmu_scratch;
dma_addr_t mmu_scratch_paddr;
+ /* virtual address bits from V3D to the MMU. */
+ int va_width;
/* Number of V3D cores. */
u32 cores;
@@ -66,8 +77,10 @@
struct work_struct overflow_mem_work;
- struct v3d_exec_info *bin_job;
- struct v3d_exec_info *render_job;
+ struct v3d_bin_job *bin_job;
+ struct v3d_render_job *render_job;
+ struct v3d_tfu_job *tfu_job;
+ struct v3d_csd_job *csd_job;
struct v3d_queue_state queue[V3D_MAX_QUEUES];
@@ -90,6 +103,12 @@
*/
struct mutex sched_lock;
+ /* Lock taken during a cache clean and when initiating an L2
+ * flush, to keep L2 flushes from interfering with the
+ * synchronous L2 cleans.
+ */
+ struct mutex cache_clean_lock;
+
struct {
u32 num_allocated;
u32 pages_allocated;
@@ -99,8 +118,16 @@
static inline struct v3d_dev *
to_v3d_dev(struct drm_device *dev)
{
- return (struct v3d_dev *)dev->dev_private;
+ return container_of(dev, struct v3d_dev, drm);
}
+
+static inline bool
+v3d_has_csd(struct v3d_dev *v3d)
+{
+ return v3d->ver >= 41;
+}
+
+#define v3d_to_pdev(v3d) to_platform_device((v3d)->drm.dev)
/* The per-fd struct, which tracks the MMU mappings. */
struct v3d_file_priv {
@@ -109,34 +136,15 @@
struct drm_sched_entity sched_entity[V3D_MAX_QUEUES];
};
-/* Tracks a mapping of a BO into a per-fd address space */
-struct v3d_vma {
- struct v3d_page_table *pt;
- struct list_head list; /* entry in v3d_bo.vmas */
-};
-
struct v3d_bo {
- struct drm_gem_object base;
-
- struct mutex lock;
+ struct drm_gem_shmem_object base;
struct drm_mm_node node;
- u32 pages_refcount;
- struct page **pages;
- struct sg_table *sgt;
- void *vaddr;
-
- struct list_head vmas; /* list of v3d_vma */
-
/* List entry for the BO's position in
- * v3d_exec_info->unref_list
+ * v3d_render_job->unref_list
*/
struct list_head unref_head;
-
- /* normally (resv == &_resv) except for imported bo's */
- struct reservation_object *resv;
- struct reservation_object _resv;
};
static inline struct v3d_bo *
@@ -174,66 +182,112 @@
struct v3d_job {
struct drm_sched_job base;
- struct v3d_exec_info *exec;
+ struct kref refcount;
- /* An optional fence userspace can pass in for the job to depend on. */
- struct dma_fence *in_fence;
+ struct v3d_dev *v3d;
+
+ /* This is the array of BOs that were looked up at the start
+ * of submission.
+ */
+ struct drm_gem_object **bo;
+ u32 bo_count;
+
+ /* Array of struct dma_fence * to block on before submitting this job.
+ */
+ struct xarray deps;
+ unsigned long last_dep;
/* v3d fence to be signaled by IRQ handler when the job is complete. */
+ struct dma_fence *irq_fence;
+
+ /* scheduler fence for when the job is considered complete and
+ * the BO reservations can be released.
+ */
struct dma_fence *done_fence;
+
+ /* Callback for the freeing of the job on refcount going to 0. */
+ void (*free)(struct kref *ref);
+};
+
+struct v3d_bin_job {
+ struct v3d_job base;
/* GPU virtual addresses of the start/end of the CL job. */
u32 start, end;
u32 timedout_ctca, timedout_ctra;
-};
-struct v3d_exec_info {
- struct v3d_dev *v3d;
-
- struct v3d_job bin, render;
-
- /* Fence for when the scheduler considers the binner to be
- * done, for render to depend on.
- */
- struct dma_fence *bin_done_fence;
-
- struct kref refcount;
-
- /* This is the array of BOs that were looked up at the start of exec. */
- struct v3d_bo **bo;
- u32 bo_count;
-
- /* List of overflow BOs used in the job that need to be
- * released once the job is complete.
- */
- struct list_head unref_list;
+ /* Corresponding render job, for attaching our overflow memory. */
+ struct v3d_render_job *render;
/* Submitted tile memory allocation start/size, tile state. */
u32 qma, qms, qts;
};
+struct v3d_render_job {
+ struct v3d_job base;
+
+ /* GPU virtual addresses of the start/end of the CL job. */
+ u32 start, end;
+
+ u32 timedout_ctca, timedout_ctra;
+
+ /* List of overflow BOs used in the job that need to be
+ * released once the job is complete.
+ */
+ struct list_head unref_list;
+};
+
+struct v3d_tfu_job {
+ struct v3d_job base;
+
+ struct drm_v3d_submit_tfu args;
+};
+
+struct v3d_csd_job {
+ struct v3d_job base;
+
+ u32 timedout_batches;
+
+ struct drm_v3d_submit_csd args;
+};
+
/**
- * _wait_for - magic (register) wait macro
+ * __wait_for - magic wait macro
*
- * Does the right thing for modeset paths when run under kdgb or similar atomic
- * contexts. Note that it's important that we check the condition again after
- * having timed out, since the timeout could be due to preemption or similar and
- * we've never had a chance to check the condition before the timeout.
+ * Macro to help avoid open coding check/wait/timeout patterns. Note that it's
+ * important that we check the condition again after having timed out, since the
+ * timeout could be due to preemption or similar and we've never had a chance to
+ * check the condition before the timeout.
*/
-#define wait_for(COND, MS) ({ \
- unsigned long timeout__ = jiffies + msecs_to_jiffies(MS) + 1; \
- int ret__ = 0; \
- while (!(COND)) { \
- if (time_after(jiffies, timeout__)) { \
- if (!(COND)) \
- ret__ = -ETIMEDOUT; \
+#define __wait_for(OP, COND, US, Wmin, Wmax) ({ \
+ const ktime_t end__ = ktime_add_ns(ktime_get_raw(), 1000ll * (US)); \
+ long wait__ = (Wmin); /* recommended min for usleep is 10 us */ \
+ int ret__; \
+ might_sleep(); \
+ for (;;) { \
+ const bool expired__ = ktime_after(ktime_get_raw(), end__); \
+ OP; \
+ /* Guarantee COND check prior to timeout */ \
+ barrier(); \
+ if (COND) { \
+ ret__ = 0; \
break; \
} \
- msleep(1); \
+ if (expired__) { \
+ ret__ = -ETIMEDOUT; \
+ break; \
+ } \
+ usleep_range(wait__, wait__ * 2); \
+ if (wait__ < (Wmax)) \
+ wait__ <<= 1; \
} \
ret__; \
})
+
+#define _wait_for(COND, US, Wmin, Wmax) __wait_for(, (COND), (US), (Wmin), \
+ (Wmax))
+#define wait_for(COND, MS) _wait_for((COND), (MS) * 1000, 10, 1000)
static inline unsigned long nsecs_to_jiffies_timeout(const u64 n)
{
@@ -246,6 +300,7 @@
}
/* v3d_bo.c */
+struct drm_gem_object *v3d_create_object(struct drm_device *dev, size_t size);
void v3d_free_object(struct drm_gem_object *gem_obj);
struct v3d_bo *v3d_bo_create(struct drm_device *dev, struct drm_file *file_priv,
size_t size);
@@ -255,17 +310,12 @@
struct drm_file *file_priv);
int v3d_get_bo_offset_ioctl(struct drm_device *dev, void *data,
struct drm_file *file_priv);
-vm_fault_t v3d_gem_fault(struct vm_fault *vmf);
-int v3d_mmap(struct file *filp, struct vm_area_struct *vma);
-struct reservation_object *v3d_prime_res_obj(struct drm_gem_object *obj);
-int v3d_prime_mmap(struct drm_gem_object *obj, struct vm_area_struct *vma);
-struct sg_table *v3d_prime_get_sg_table(struct drm_gem_object *obj);
struct drm_gem_object *v3d_prime_import_sg_table(struct drm_device *dev,
struct dma_buf_attachment *attach,
struct sg_table *sgt);
/* v3d_debugfs.c */
-int v3d_debugfs_init(struct drm_minor *minor);
+void v3d_debugfs_init(struct drm_minor *minor);
/* v3d_fence.c */
extern const struct dma_fence_ops v3d_fence_ops;
@@ -276,12 +326,16 @@
void v3d_gem_destroy(struct drm_device *dev);
int v3d_submit_cl_ioctl(struct drm_device *dev, void *data,
struct drm_file *file_priv);
+int v3d_submit_tfu_ioctl(struct drm_device *dev, void *data,
+ struct drm_file *file_priv);
+int v3d_submit_csd_ioctl(struct drm_device *dev, void *data,
+ struct drm_file *file_priv);
int v3d_wait_bo_ioctl(struct drm_device *dev, void *data,
struct drm_file *file_priv);
-void v3d_exec_put(struct v3d_exec_info *exec);
+void v3d_job_put(struct v3d_job *job);
void v3d_reset(struct v3d_dev *v3d);
void v3d_invalidate_caches(struct v3d_dev *v3d);
-void v3d_flush_caches(struct v3d_dev *v3d);
+void v3d_clean_caches(struct v3d_dev *v3d);
/* v3d_irq.c */
int v3d_irq_init(struct v3d_dev *v3d);
--
Gitblit v1.6.2