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2b86189e4d
Spelling out _unlocked for each and every driver is a annoying. Especially if we consider how many drivers, do not know (or need to) about the horror stories involving struct_mutex. Just drop the suffix. It makes the API cleaner. Done via the following script: __from=drm_gem_object_put_unlocked __to=drm_gem_object_put for __file in $(git grep --name-only $__from); do sed -i "s/$__from/$__to/g" $__file; done Cc: Eric Anholt <eric@anholt.net> Cc: David Airlie <airlied@linux.ie> Cc: Daniel Vetter <daniel@ffwll.ch> Signed-off-by: Emil Velikov <emil.velikov@collabora.com> Acked-by: Sam Ravnborg <sam@ravnborg.org> Acked-by: Thomas Zimmermann <tzimmermann@suse.de> Link: https://patchwork.freedesktop.org/patch/msgid/20200515095118.2743122-33-emil.l.velikov@gmail.com
931 lines
22 KiB
C
931 lines
22 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/* Copyright (C) 2014-2018 Broadcom */
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#include <linux/device.h>
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#include <linux/dma-mapping.h>
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#include <linux/io.h>
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#include <linux/module.h>
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#include <linux/platform_device.h>
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#include <linux/pm_runtime.h>
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#include <linux/reset.h>
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#include <linux/sched/signal.h>
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#include <linux/uaccess.h>
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#include <drm/drm_syncobj.h>
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#include <uapi/drm/v3d_drm.h>
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#include "v3d_drv.h"
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#include "v3d_regs.h"
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#include "v3d_trace.h"
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static void
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v3d_init_core(struct v3d_dev *v3d, int core)
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{
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/* Set OVRTMUOUT, which means that the texture sampler uniform
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* configuration's tmu output type field is used, instead of
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* using the hardware default behavior based on the texture
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* type. If you want the default behavior, you can still put
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* "2" in the indirect texture state's output_type field.
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*/
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if (v3d->ver < 40)
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V3D_CORE_WRITE(core, V3D_CTL_MISCCFG, V3D_MISCCFG_OVRTMUOUT);
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/* Whenever we flush the L2T cache, we always want to flush
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* the whole thing.
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*/
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V3D_CORE_WRITE(core, V3D_CTL_L2TFLSTA, 0);
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V3D_CORE_WRITE(core, V3D_CTL_L2TFLEND, ~0);
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}
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/* Sets invariant state for the HW. */
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static void
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v3d_init_hw_state(struct v3d_dev *v3d)
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{
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v3d_init_core(v3d, 0);
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}
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static void
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v3d_idle_axi(struct v3d_dev *v3d, int core)
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{
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V3D_CORE_WRITE(core, V3D_GMP_CFG, V3D_GMP_CFG_STOP_REQ);
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if (wait_for((V3D_CORE_READ(core, V3D_GMP_STATUS) &
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(V3D_GMP_STATUS_RD_COUNT_MASK |
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V3D_GMP_STATUS_WR_COUNT_MASK |
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V3D_GMP_STATUS_CFG_BUSY)) == 0, 100)) {
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DRM_ERROR("Failed to wait for safe GMP shutdown\n");
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}
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}
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static void
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v3d_idle_gca(struct v3d_dev *v3d)
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{
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if (v3d->ver >= 41)
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return;
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V3D_GCA_WRITE(V3D_GCA_SAFE_SHUTDOWN, V3D_GCA_SAFE_SHUTDOWN_EN);
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if (wait_for((V3D_GCA_READ(V3D_GCA_SAFE_SHUTDOWN_ACK) &
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V3D_GCA_SAFE_SHUTDOWN_ACK_ACKED) ==
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V3D_GCA_SAFE_SHUTDOWN_ACK_ACKED, 100)) {
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DRM_ERROR("Failed to wait for safe GCA shutdown\n");
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}
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}
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static void
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v3d_reset_by_bridge(struct v3d_dev *v3d)
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{
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int version = V3D_BRIDGE_READ(V3D_TOP_GR_BRIDGE_REVISION);
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if (V3D_GET_FIELD(version, V3D_TOP_GR_BRIDGE_MAJOR) == 2) {
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V3D_BRIDGE_WRITE(V3D_TOP_GR_BRIDGE_SW_INIT_0,
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V3D_TOP_GR_BRIDGE_SW_INIT_0_V3D_CLK_108_SW_INIT);
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V3D_BRIDGE_WRITE(V3D_TOP_GR_BRIDGE_SW_INIT_0, 0);
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/* GFXH-1383: The SW_INIT may cause a stray write to address 0
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* of the unit, so reset it to its power-on value here.
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*/
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V3D_WRITE(V3D_HUB_AXICFG, V3D_HUB_AXICFG_MAX_LEN_MASK);
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} else {
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WARN_ON_ONCE(V3D_GET_FIELD(version,
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V3D_TOP_GR_BRIDGE_MAJOR) != 7);
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V3D_BRIDGE_WRITE(V3D_TOP_GR_BRIDGE_SW_INIT_1,
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V3D_TOP_GR_BRIDGE_SW_INIT_1_V3D_CLK_108_SW_INIT);
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V3D_BRIDGE_WRITE(V3D_TOP_GR_BRIDGE_SW_INIT_1, 0);
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}
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}
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static void
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v3d_reset_v3d(struct v3d_dev *v3d)
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{
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if (v3d->reset)
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reset_control_reset(v3d->reset);
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else
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v3d_reset_by_bridge(v3d);
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v3d_init_hw_state(v3d);
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}
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void
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v3d_reset(struct v3d_dev *v3d)
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{
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struct drm_device *dev = &v3d->drm;
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DRM_DEV_ERROR(dev->dev, "Resetting GPU for hang.\n");
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DRM_DEV_ERROR(dev->dev, "V3D_ERR_STAT: 0x%08x\n",
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V3D_CORE_READ(0, V3D_ERR_STAT));
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trace_v3d_reset_begin(dev);
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/* XXX: only needed for safe powerdown, not reset. */
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if (false)
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v3d_idle_axi(v3d, 0);
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v3d_idle_gca(v3d);
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v3d_reset_v3d(v3d);
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v3d_mmu_set_page_table(v3d);
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v3d_irq_reset(v3d);
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trace_v3d_reset_end(dev);
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}
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static void
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v3d_flush_l3(struct v3d_dev *v3d)
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{
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if (v3d->ver < 41) {
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u32 gca_ctrl = V3D_GCA_READ(V3D_GCA_CACHE_CTRL);
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V3D_GCA_WRITE(V3D_GCA_CACHE_CTRL,
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gca_ctrl | V3D_GCA_CACHE_CTRL_FLUSH);
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if (v3d->ver < 33) {
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V3D_GCA_WRITE(V3D_GCA_CACHE_CTRL,
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gca_ctrl & ~V3D_GCA_CACHE_CTRL_FLUSH);
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}
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}
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}
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/* Invalidates the (read-only) L2C cache. This was the L2 cache for
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* uniforms and instructions on V3D 3.2.
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*/
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static void
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v3d_invalidate_l2c(struct v3d_dev *v3d, int core)
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{
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if (v3d->ver > 32)
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return;
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V3D_CORE_WRITE(core, V3D_CTL_L2CACTL,
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V3D_L2CACTL_L2CCLR |
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V3D_L2CACTL_L2CENA);
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}
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/* Invalidates texture L2 cachelines */
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static void
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v3d_flush_l2t(struct v3d_dev *v3d, int core)
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{
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/* While there is a busy bit (V3D_L2TCACTL_L2TFLS), we don't
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* need to wait for completion before dispatching the job --
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* L2T accesses will be stalled until the flush has completed.
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* However, we do need to make sure we don't try to trigger a
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* new flush while the L2_CLEAN queue is trying to
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* synchronously clean after a job.
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*/
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mutex_lock(&v3d->cache_clean_lock);
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V3D_CORE_WRITE(core, V3D_CTL_L2TCACTL,
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V3D_L2TCACTL_L2TFLS |
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V3D_SET_FIELD(V3D_L2TCACTL_FLM_FLUSH, V3D_L2TCACTL_FLM));
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mutex_unlock(&v3d->cache_clean_lock);
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}
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/* Cleans texture L1 and L2 cachelines (writing back dirty data).
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*
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* For cleaning, which happens from the CACHE_CLEAN queue after CSD has
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* executed, we need to make sure that the clean is done before
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* signaling job completion. So, we synchronously wait before
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* returning, and we make sure that L2 invalidates don't happen in the
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* meantime to confuse our are-we-done checks.
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*/
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void
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v3d_clean_caches(struct v3d_dev *v3d)
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{
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struct drm_device *dev = &v3d->drm;
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int core = 0;
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trace_v3d_cache_clean_begin(dev);
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V3D_CORE_WRITE(core, V3D_CTL_L2TCACTL, V3D_L2TCACTL_TMUWCF);
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if (wait_for(!(V3D_CORE_READ(core, V3D_CTL_L2TCACTL) &
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V3D_L2TCACTL_L2TFLS), 100)) {
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DRM_ERROR("Timeout waiting for L1T write combiner flush\n");
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}
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mutex_lock(&v3d->cache_clean_lock);
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V3D_CORE_WRITE(core, V3D_CTL_L2TCACTL,
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V3D_L2TCACTL_L2TFLS |
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V3D_SET_FIELD(V3D_L2TCACTL_FLM_CLEAN, V3D_L2TCACTL_FLM));
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if (wait_for(!(V3D_CORE_READ(core, V3D_CTL_L2TCACTL) &
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V3D_L2TCACTL_L2TFLS), 100)) {
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DRM_ERROR("Timeout waiting for L2T clean\n");
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}
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mutex_unlock(&v3d->cache_clean_lock);
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trace_v3d_cache_clean_end(dev);
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}
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/* Invalidates the slice caches. These are read-only caches. */
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static void
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v3d_invalidate_slices(struct v3d_dev *v3d, int core)
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{
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V3D_CORE_WRITE(core, V3D_CTL_SLCACTL,
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V3D_SET_FIELD(0xf, V3D_SLCACTL_TVCCS) |
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V3D_SET_FIELD(0xf, V3D_SLCACTL_TDCCS) |
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V3D_SET_FIELD(0xf, V3D_SLCACTL_UCC) |
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V3D_SET_FIELD(0xf, V3D_SLCACTL_ICC));
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}
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void
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v3d_invalidate_caches(struct v3d_dev *v3d)
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{
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/* Invalidate the caches from the outside in. That way if
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* another CL's concurrent use of nearby memory were to pull
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* an invalidated cacheline back in, we wouldn't leave stale
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* data in the inner cache.
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*/
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v3d_flush_l3(v3d);
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v3d_invalidate_l2c(v3d, 0);
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v3d_flush_l2t(v3d, 0);
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v3d_invalidate_slices(v3d, 0);
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}
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/* Takes the reservation lock on all the BOs being referenced, so that
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* at queue submit time we can update the reservations.
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*
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* We don't lock the RCL the tile alloc/state BOs, or overflow memory
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* (all of which are on exec->unref_list). They're entirely private
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* to v3d, so we don't attach dma-buf fences to them.
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*/
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static int
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v3d_lock_bo_reservations(struct v3d_job *job,
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struct ww_acquire_ctx *acquire_ctx)
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{
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int i, ret;
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ret = drm_gem_lock_reservations(job->bo, job->bo_count, acquire_ctx);
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if (ret)
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return ret;
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for (i = 0; i < job->bo_count; i++) {
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ret = drm_gem_fence_array_add_implicit(&job->deps,
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job->bo[i], true);
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if (ret) {
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drm_gem_unlock_reservations(job->bo, job->bo_count,
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acquire_ctx);
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return ret;
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}
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}
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return 0;
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}
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/**
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* v3d_lookup_bos() - Sets up job->bo[] with the GEM objects
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* referenced by the job.
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* @dev: DRM device
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* @file_priv: DRM file for this fd
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* @job: V3D job being set up
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*
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* The command validator needs to reference BOs by their index within
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* the submitted job's BO list. This does the validation of the job's
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* BO list and reference counting for the lifetime of the job.
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*
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* Note that this function doesn't need to unreference the BOs on
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* failure, because that will happen at v3d_exec_cleanup() time.
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*/
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static int
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v3d_lookup_bos(struct drm_device *dev,
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struct drm_file *file_priv,
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struct v3d_job *job,
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u64 bo_handles,
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u32 bo_count)
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{
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u32 *handles;
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int ret = 0;
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int i;
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job->bo_count = bo_count;
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if (!job->bo_count) {
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/* See comment on bo_index for why we have to check
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* this.
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*/
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DRM_DEBUG("Rendering requires BOs\n");
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return -EINVAL;
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}
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job->bo = kvmalloc_array(job->bo_count,
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sizeof(struct drm_gem_cma_object *),
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GFP_KERNEL | __GFP_ZERO);
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if (!job->bo) {
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DRM_DEBUG("Failed to allocate validated BO pointers\n");
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return -ENOMEM;
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}
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handles = kvmalloc_array(job->bo_count, sizeof(u32), GFP_KERNEL);
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if (!handles) {
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ret = -ENOMEM;
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DRM_DEBUG("Failed to allocate incoming GEM handles\n");
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goto fail;
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}
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if (copy_from_user(handles,
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(void __user *)(uintptr_t)bo_handles,
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job->bo_count * sizeof(u32))) {
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ret = -EFAULT;
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DRM_DEBUG("Failed to copy in GEM handles\n");
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goto fail;
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}
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spin_lock(&file_priv->table_lock);
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for (i = 0; i < job->bo_count; i++) {
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struct drm_gem_object *bo = idr_find(&file_priv->object_idr,
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handles[i]);
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if (!bo) {
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DRM_DEBUG("Failed to look up GEM BO %d: %d\n",
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i, handles[i]);
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ret = -ENOENT;
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spin_unlock(&file_priv->table_lock);
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goto fail;
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}
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drm_gem_object_get(bo);
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job->bo[i] = bo;
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}
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spin_unlock(&file_priv->table_lock);
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fail:
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kvfree(handles);
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return ret;
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}
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static void
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v3d_job_free(struct kref *ref)
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{
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struct v3d_job *job = container_of(ref, struct v3d_job, refcount);
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unsigned long index;
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struct dma_fence *fence;
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int i;
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for (i = 0; i < job->bo_count; i++) {
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if (job->bo[i])
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drm_gem_object_put(job->bo[i]);
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}
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kvfree(job->bo);
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xa_for_each(&job->deps, index, fence) {
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dma_fence_put(fence);
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}
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xa_destroy(&job->deps);
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dma_fence_put(job->irq_fence);
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dma_fence_put(job->done_fence);
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pm_runtime_mark_last_busy(job->v3d->drm.dev);
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pm_runtime_put_autosuspend(job->v3d->drm.dev);
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kfree(job);
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}
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static void
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v3d_render_job_free(struct kref *ref)
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{
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struct v3d_render_job *job = container_of(ref, struct v3d_render_job,
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base.refcount);
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struct v3d_bo *bo, *save;
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list_for_each_entry_safe(bo, save, &job->unref_list, unref_head) {
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drm_gem_object_put(&bo->base.base);
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}
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v3d_job_free(ref);
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}
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void v3d_job_put(struct v3d_job *job)
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{
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kref_put(&job->refcount, job->free);
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}
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int
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v3d_wait_bo_ioctl(struct drm_device *dev, void *data,
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struct drm_file *file_priv)
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{
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int ret;
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struct drm_v3d_wait_bo *args = data;
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ktime_t start = ktime_get();
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u64 delta_ns;
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unsigned long timeout_jiffies =
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nsecs_to_jiffies_timeout(args->timeout_ns);
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if (args->pad != 0)
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return -EINVAL;
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ret = drm_gem_dma_resv_wait(file_priv, args->handle,
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true, timeout_jiffies);
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/* Decrement the user's timeout, in case we got interrupted
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* such that the ioctl will be restarted.
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*/
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delta_ns = ktime_to_ns(ktime_sub(ktime_get(), start));
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if (delta_ns < args->timeout_ns)
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args->timeout_ns -= delta_ns;
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else
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args->timeout_ns = 0;
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/* Asked to wait beyond the jiffie/scheduler precision? */
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if (ret == -ETIME && args->timeout_ns)
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ret = -EAGAIN;
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return ret;
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}
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|
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static int
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v3d_job_init(struct v3d_dev *v3d, struct drm_file *file_priv,
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struct v3d_job *job, void (*free)(struct kref *ref),
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u32 in_sync)
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{
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struct dma_fence *in_fence = NULL;
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int ret;
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job->v3d = v3d;
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job->free = free;
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ret = pm_runtime_get_sync(v3d->drm.dev);
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if (ret < 0)
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return ret;
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xa_init_flags(&job->deps, XA_FLAGS_ALLOC);
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ret = drm_syncobj_find_fence(file_priv, in_sync, 0, 0, &in_fence);
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if (ret == -EINVAL)
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goto fail;
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ret = drm_gem_fence_array_add(&job->deps, in_fence);
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if (ret)
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goto fail;
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|
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kref_init(&job->refcount);
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|
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return 0;
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fail:
|
|
xa_destroy(&job->deps);
|
|
pm_runtime_put_autosuspend(v3d->drm.dev);
|
|
return ret;
|
|
}
|
|
|
|
static int
|
|
v3d_push_job(struct v3d_file_priv *v3d_priv,
|
|
struct v3d_job *job, enum v3d_queue queue)
|
|
{
|
|
int ret;
|
|
|
|
ret = drm_sched_job_init(&job->base, &v3d_priv->sched_entity[queue],
|
|
v3d_priv);
|
|
if (ret)
|
|
return ret;
|
|
|
|
job->done_fence = dma_fence_get(&job->base.s_fence->finished);
|
|
|
|
/* put by scheduler job completion */
|
|
kref_get(&job->refcount);
|
|
|
|
drm_sched_entity_push_job(&job->base, &v3d_priv->sched_entity[queue]);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void
|
|
v3d_attach_fences_and_unlock_reservation(struct drm_file *file_priv,
|
|
struct v3d_job *job,
|
|
struct ww_acquire_ctx *acquire_ctx,
|
|
u32 out_sync,
|
|
struct dma_fence *done_fence)
|
|
{
|
|
struct drm_syncobj *sync_out;
|
|
int i;
|
|
|
|
for (i = 0; i < job->bo_count; i++) {
|
|
/* XXX: Use shared fences for read-only objects. */
|
|
dma_resv_add_excl_fence(job->bo[i]->resv,
|
|
job->done_fence);
|
|
}
|
|
|
|
drm_gem_unlock_reservations(job->bo, job->bo_count, acquire_ctx);
|
|
|
|
/* Update the return sync object for the job */
|
|
sync_out = drm_syncobj_find(file_priv, out_sync);
|
|
if (sync_out) {
|
|
drm_syncobj_replace_fence(sync_out, done_fence);
|
|
drm_syncobj_put(sync_out);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* v3d_submit_cl_ioctl() - Submits a job (frame) to the V3D.
|
|
* @dev: DRM device
|
|
* @data: ioctl argument
|
|
* @file_priv: DRM file for this fd
|
|
*
|
|
* This is the main entrypoint for userspace to submit a 3D frame to
|
|
* the GPU. Userspace provides the binner command list (if
|
|
* applicable), and the kernel sets up the render command list to draw
|
|
* to the framebuffer described in the ioctl, using the command lists
|
|
* that the 3D engine's binner will produce.
|
|
*/
|
|
int
|
|
v3d_submit_cl_ioctl(struct drm_device *dev, void *data,
|
|
struct drm_file *file_priv)
|
|
{
|
|
struct v3d_dev *v3d = to_v3d_dev(dev);
|
|
struct v3d_file_priv *v3d_priv = file_priv->driver_priv;
|
|
struct drm_v3d_submit_cl *args = data;
|
|
struct v3d_bin_job *bin = NULL;
|
|
struct v3d_render_job *render;
|
|
struct v3d_job *clean_job = NULL;
|
|
struct v3d_job *last_job;
|
|
struct ww_acquire_ctx acquire_ctx;
|
|
int ret = 0;
|
|
|
|
trace_v3d_submit_cl_ioctl(&v3d->drm, args->rcl_start, args->rcl_end);
|
|
|
|
if (args->flags != 0 &&
|
|
args->flags != DRM_V3D_SUBMIT_CL_FLUSH_CACHE) {
|
|
DRM_INFO("invalid flags: %d\n", args->flags);
|
|
return -EINVAL;
|
|
}
|
|
|
|
render = kcalloc(1, sizeof(*render), GFP_KERNEL);
|
|
if (!render)
|
|
return -ENOMEM;
|
|
|
|
render->start = args->rcl_start;
|
|
render->end = args->rcl_end;
|
|
INIT_LIST_HEAD(&render->unref_list);
|
|
|
|
ret = v3d_job_init(v3d, file_priv, &render->base,
|
|
v3d_render_job_free, args->in_sync_rcl);
|
|
if (ret) {
|
|
kfree(render);
|
|
return ret;
|
|
}
|
|
|
|
if (args->bcl_start != args->bcl_end) {
|
|
bin = kcalloc(1, sizeof(*bin), GFP_KERNEL);
|
|
if (!bin) {
|
|
v3d_job_put(&render->base);
|
|
return -ENOMEM;
|
|
}
|
|
|
|
ret = v3d_job_init(v3d, file_priv, &bin->base,
|
|
v3d_job_free, args->in_sync_bcl);
|
|
if (ret) {
|
|
kfree(bin);
|
|
v3d_job_put(&render->base);
|
|
kfree(bin);
|
|
return ret;
|
|
}
|
|
|
|
bin->start = args->bcl_start;
|
|
bin->end = args->bcl_end;
|
|
bin->qma = args->qma;
|
|
bin->qms = args->qms;
|
|
bin->qts = args->qts;
|
|
bin->render = render;
|
|
}
|
|
|
|
if (args->flags & DRM_V3D_SUBMIT_CL_FLUSH_CACHE) {
|
|
clean_job = kcalloc(1, sizeof(*clean_job), GFP_KERNEL);
|
|
if (!clean_job) {
|
|
ret = -ENOMEM;
|
|
goto fail;
|
|
}
|
|
|
|
ret = v3d_job_init(v3d, file_priv, clean_job, v3d_job_free, 0);
|
|
if (ret) {
|
|
kfree(clean_job);
|
|
clean_job = NULL;
|
|
goto fail;
|
|
}
|
|
|
|
last_job = clean_job;
|
|
} else {
|
|
last_job = &render->base;
|
|
}
|
|
|
|
ret = v3d_lookup_bos(dev, file_priv, last_job,
|
|
args->bo_handles, args->bo_handle_count);
|
|
if (ret)
|
|
goto fail;
|
|
|
|
ret = v3d_lock_bo_reservations(last_job, &acquire_ctx);
|
|
if (ret)
|
|
goto fail;
|
|
|
|
mutex_lock(&v3d->sched_lock);
|
|
if (bin) {
|
|
ret = v3d_push_job(v3d_priv, &bin->base, V3D_BIN);
|
|
if (ret)
|
|
goto fail_unreserve;
|
|
|
|
ret = drm_gem_fence_array_add(&render->base.deps,
|
|
dma_fence_get(bin->base.done_fence));
|
|
if (ret)
|
|
goto fail_unreserve;
|
|
}
|
|
|
|
ret = v3d_push_job(v3d_priv, &render->base, V3D_RENDER);
|
|
if (ret)
|
|
goto fail_unreserve;
|
|
|
|
if (clean_job) {
|
|
struct dma_fence *render_fence =
|
|
dma_fence_get(render->base.done_fence);
|
|
ret = drm_gem_fence_array_add(&clean_job->deps, render_fence);
|
|
if (ret)
|
|
goto fail_unreserve;
|
|
ret = v3d_push_job(v3d_priv, clean_job, V3D_CACHE_CLEAN);
|
|
if (ret)
|
|
goto fail_unreserve;
|
|
}
|
|
|
|
mutex_unlock(&v3d->sched_lock);
|
|
|
|
v3d_attach_fences_and_unlock_reservation(file_priv,
|
|
last_job,
|
|
&acquire_ctx,
|
|
args->out_sync,
|
|
last_job->done_fence);
|
|
|
|
if (bin)
|
|
v3d_job_put(&bin->base);
|
|
v3d_job_put(&render->base);
|
|
if (clean_job)
|
|
v3d_job_put(clean_job);
|
|
|
|
return 0;
|
|
|
|
fail_unreserve:
|
|
mutex_unlock(&v3d->sched_lock);
|
|
drm_gem_unlock_reservations(last_job->bo,
|
|
last_job->bo_count, &acquire_ctx);
|
|
fail:
|
|
if (bin)
|
|
v3d_job_put(&bin->base);
|
|
v3d_job_put(&render->base);
|
|
if (clean_job)
|
|
v3d_job_put(clean_job);
|
|
|
|
return ret;
|
|
}
|
|
|
|
/**
|
|
* v3d_submit_tfu_ioctl() - Submits a TFU (texture formatting) job to the V3D.
|
|
* @dev: DRM device
|
|
* @data: ioctl argument
|
|
* @file_priv: DRM file for this fd
|
|
*
|
|
* Userspace provides the register setup for the TFU, which we don't
|
|
* need to validate since the TFU is behind the MMU.
|
|
*/
|
|
int
|
|
v3d_submit_tfu_ioctl(struct drm_device *dev, void *data,
|
|
struct drm_file *file_priv)
|
|
{
|
|
struct v3d_dev *v3d = to_v3d_dev(dev);
|
|
struct v3d_file_priv *v3d_priv = file_priv->driver_priv;
|
|
struct drm_v3d_submit_tfu *args = data;
|
|
struct v3d_tfu_job *job;
|
|
struct ww_acquire_ctx acquire_ctx;
|
|
int ret = 0;
|
|
|
|
trace_v3d_submit_tfu_ioctl(&v3d->drm, args->iia);
|
|
|
|
job = kcalloc(1, sizeof(*job), GFP_KERNEL);
|
|
if (!job)
|
|
return -ENOMEM;
|
|
|
|
ret = v3d_job_init(v3d, file_priv, &job->base,
|
|
v3d_job_free, args->in_sync);
|
|
if (ret) {
|
|
kfree(job);
|
|
return ret;
|
|
}
|
|
|
|
job->base.bo = kcalloc(ARRAY_SIZE(args->bo_handles),
|
|
sizeof(*job->base.bo), GFP_KERNEL);
|
|
if (!job->base.bo) {
|
|
v3d_job_put(&job->base);
|
|
return -ENOMEM;
|
|
}
|
|
|
|
job->args = *args;
|
|
|
|
spin_lock(&file_priv->table_lock);
|
|
for (job->base.bo_count = 0;
|
|
job->base.bo_count < ARRAY_SIZE(args->bo_handles);
|
|
job->base.bo_count++) {
|
|
struct drm_gem_object *bo;
|
|
|
|
if (!args->bo_handles[job->base.bo_count])
|
|
break;
|
|
|
|
bo = idr_find(&file_priv->object_idr,
|
|
args->bo_handles[job->base.bo_count]);
|
|
if (!bo) {
|
|
DRM_DEBUG("Failed to look up GEM BO %d: %d\n",
|
|
job->base.bo_count,
|
|
args->bo_handles[job->base.bo_count]);
|
|
ret = -ENOENT;
|
|
spin_unlock(&file_priv->table_lock);
|
|
goto fail;
|
|
}
|
|
drm_gem_object_get(bo);
|
|
job->base.bo[job->base.bo_count] = bo;
|
|
}
|
|
spin_unlock(&file_priv->table_lock);
|
|
|
|
ret = v3d_lock_bo_reservations(&job->base, &acquire_ctx);
|
|
if (ret)
|
|
goto fail;
|
|
|
|
mutex_lock(&v3d->sched_lock);
|
|
ret = v3d_push_job(v3d_priv, &job->base, V3D_TFU);
|
|
if (ret)
|
|
goto fail_unreserve;
|
|
mutex_unlock(&v3d->sched_lock);
|
|
|
|
v3d_attach_fences_and_unlock_reservation(file_priv,
|
|
&job->base, &acquire_ctx,
|
|
args->out_sync,
|
|
job->base.done_fence);
|
|
|
|
v3d_job_put(&job->base);
|
|
|
|
return 0;
|
|
|
|
fail_unreserve:
|
|
mutex_unlock(&v3d->sched_lock);
|
|
drm_gem_unlock_reservations(job->base.bo, job->base.bo_count,
|
|
&acquire_ctx);
|
|
fail:
|
|
v3d_job_put(&job->base);
|
|
|
|
return ret;
|
|
}
|
|
|
|
/**
|
|
* v3d_submit_csd_ioctl() - Submits a CSD (texture formatting) job to the V3D.
|
|
* @dev: DRM device
|
|
* @data: ioctl argument
|
|
* @file_priv: DRM file for this fd
|
|
*
|
|
* Userspace provides the register setup for the CSD, which we don't
|
|
* need to validate since the CSD is behind the MMU.
|
|
*/
|
|
int
|
|
v3d_submit_csd_ioctl(struct drm_device *dev, void *data,
|
|
struct drm_file *file_priv)
|
|
{
|
|
struct v3d_dev *v3d = to_v3d_dev(dev);
|
|
struct v3d_file_priv *v3d_priv = file_priv->driver_priv;
|
|
struct drm_v3d_submit_csd *args = data;
|
|
struct v3d_csd_job *job;
|
|
struct v3d_job *clean_job;
|
|
struct ww_acquire_ctx acquire_ctx;
|
|
int ret;
|
|
|
|
trace_v3d_submit_csd_ioctl(&v3d->drm, args->cfg[5], args->cfg[6]);
|
|
|
|
if (!v3d_has_csd(v3d)) {
|
|
DRM_DEBUG("Attempting CSD submit on non-CSD hardware\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
job = kcalloc(1, sizeof(*job), GFP_KERNEL);
|
|
if (!job)
|
|
return -ENOMEM;
|
|
|
|
ret = v3d_job_init(v3d, file_priv, &job->base,
|
|
v3d_job_free, args->in_sync);
|
|
if (ret) {
|
|
kfree(job);
|
|
return ret;
|
|
}
|
|
|
|
clean_job = kcalloc(1, sizeof(*clean_job), GFP_KERNEL);
|
|
if (!clean_job) {
|
|
v3d_job_put(&job->base);
|
|
kfree(job);
|
|
return -ENOMEM;
|
|
}
|
|
|
|
ret = v3d_job_init(v3d, file_priv, clean_job, v3d_job_free, 0);
|
|
if (ret) {
|
|
v3d_job_put(&job->base);
|
|
kfree(clean_job);
|
|
return ret;
|
|
}
|
|
|
|
job->args = *args;
|
|
|
|
ret = v3d_lookup_bos(dev, file_priv, clean_job,
|
|
args->bo_handles, args->bo_handle_count);
|
|
if (ret)
|
|
goto fail;
|
|
|
|
ret = v3d_lock_bo_reservations(clean_job, &acquire_ctx);
|
|
if (ret)
|
|
goto fail;
|
|
|
|
mutex_lock(&v3d->sched_lock);
|
|
ret = v3d_push_job(v3d_priv, &job->base, V3D_CSD);
|
|
if (ret)
|
|
goto fail_unreserve;
|
|
|
|
ret = drm_gem_fence_array_add(&clean_job->deps,
|
|
dma_fence_get(job->base.done_fence));
|
|
if (ret)
|
|
goto fail_unreserve;
|
|
|
|
ret = v3d_push_job(v3d_priv, clean_job, V3D_CACHE_CLEAN);
|
|
if (ret)
|
|
goto fail_unreserve;
|
|
mutex_unlock(&v3d->sched_lock);
|
|
|
|
v3d_attach_fences_and_unlock_reservation(file_priv,
|
|
clean_job,
|
|
&acquire_ctx,
|
|
args->out_sync,
|
|
clean_job->done_fence);
|
|
|
|
v3d_job_put(&job->base);
|
|
v3d_job_put(clean_job);
|
|
|
|
return 0;
|
|
|
|
fail_unreserve:
|
|
mutex_unlock(&v3d->sched_lock);
|
|
drm_gem_unlock_reservations(clean_job->bo, clean_job->bo_count,
|
|
&acquire_ctx);
|
|
fail:
|
|
v3d_job_put(&job->base);
|
|
v3d_job_put(clean_job);
|
|
|
|
return ret;
|
|
}
|
|
|
|
int
|
|
v3d_gem_init(struct drm_device *dev)
|
|
{
|
|
struct v3d_dev *v3d = to_v3d_dev(dev);
|
|
u32 pt_size = 4096 * 1024;
|
|
int ret, i;
|
|
|
|
for (i = 0; i < V3D_MAX_QUEUES; i++)
|
|
v3d->queue[i].fence_context = dma_fence_context_alloc(1);
|
|
|
|
spin_lock_init(&v3d->mm_lock);
|
|
spin_lock_init(&v3d->job_lock);
|
|
mutex_init(&v3d->bo_lock);
|
|
mutex_init(&v3d->reset_lock);
|
|
mutex_init(&v3d->sched_lock);
|
|
mutex_init(&v3d->cache_clean_lock);
|
|
|
|
/* Note: We don't allocate address 0. Various bits of HW
|
|
* treat 0 as special, such as the occlusion query counters
|
|
* where 0 means "disabled".
|
|
*/
|
|
drm_mm_init(&v3d->mm, 1, pt_size / sizeof(u32) - 1);
|
|
|
|
v3d->pt = dma_alloc_wc(v3d->drm.dev, pt_size,
|
|
&v3d->pt_paddr,
|
|
GFP_KERNEL | __GFP_NOWARN | __GFP_ZERO);
|
|
if (!v3d->pt) {
|
|
drm_mm_takedown(&v3d->mm);
|
|
dev_err(v3d->drm.dev,
|
|
"Failed to allocate page tables. "
|
|
"Please ensure you have CMA enabled.\n");
|
|
return -ENOMEM;
|
|
}
|
|
|
|
v3d_init_hw_state(v3d);
|
|
v3d_mmu_set_page_table(v3d);
|
|
|
|
ret = v3d_sched_init(v3d);
|
|
if (ret) {
|
|
drm_mm_takedown(&v3d->mm);
|
|
dma_free_coherent(v3d->drm.dev, 4096 * 1024, (void *)v3d->pt,
|
|
v3d->pt_paddr);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
void
|
|
v3d_gem_destroy(struct drm_device *dev)
|
|
{
|
|
struct v3d_dev *v3d = to_v3d_dev(dev);
|
|
|
|
v3d_sched_fini(v3d);
|
|
|
|
/* Waiting for jobs to finish would need to be done before
|
|
* unregistering V3D.
|
|
*/
|
|
WARN_ON(v3d->bin_job);
|
|
WARN_ON(v3d->render_job);
|
|
|
|
drm_mm_takedown(&v3d->mm);
|
|
|
|
dma_free_coherent(v3d->drm.dev, 4096 * 1024, (void *)v3d->pt,
|
|
v3d->pt_paddr);
|
|
}
|