Messages in this thread | | | Date | Fri, 17 Feb 2023 23:37:11 +0200 | Subject | Re: [PATCH v2 03/14] drm/msm/a6xx: Introduce GMU wrapper support | From | Dmitry Baryshkov <> |
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On 14/02/2023 19:31, Konrad Dybcio wrote: > Some (particularly SMD_RPM, a.k.a non-RPMh) SoCs implement A6XX GPUs > but don't implement the associated GMUs. This is due to the fact that > the GMU directly pokes at RPMh. Sadly, this means we have to take care > of enabling & scaling power rails, clocks and bandwidth ourselves. > > Reuse existing Adreno-common code and modify the deeply-GMU-infused > A6XX code to facilitate these GPUs. This involves if-ing out lots > of GMU callbacks and introducing a new type of GMU - GMU wrapper. > This is essentially a register region which is convenient to model > as a device. We'll use it for managing the GDSCs.
Why do you call it a wrapper?
> > Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org> > --- > drivers/gpu/drm/msm/adreno/a6xx_gmu.c | 51 ++++- > drivers/gpu/drm/msm/adreno/a6xx_gpu.c | 198 +++++++++++++++++--- > drivers/gpu/drm/msm/adreno/a6xx_gpu.h | 1 + > drivers/gpu/drm/msm/adreno/a6xx_gpu_state.c | 14 +- > drivers/gpu/drm/msm/adreno/adreno_gpu.h | 6 + > 5 files changed, 233 insertions(+), 37 deletions(-) > > diff --git a/drivers/gpu/drm/msm/adreno/a6xx_gmu.c b/drivers/gpu/drm/msm/adreno/a6xx_gmu.c > index 90e636dcdd5b..5aa9f3ef41c2 100644 > --- a/drivers/gpu/drm/msm/adreno/a6xx_gmu.c > +++ b/drivers/gpu/drm/msm/adreno/a6xx_gmu.c > @@ -1474,6 +1474,7 @@ static int a6xx_gmu_get_irq(struct a6xx_gmu *gmu, struct platform_device *pdev, > > void a6xx_gmu_remove(struct a6xx_gpu *a6xx_gpu) > { > + struct adreno_gpu *adreno_gpu = &a6xx_gpu->base; > struct a6xx_gmu *gmu = &a6xx_gpu->gmu; > struct platform_device *pdev = to_platform_device(gmu->dev); > > @@ -1493,10 +1494,12 @@ void a6xx_gmu_remove(struct a6xx_gpu *a6xx_gpu) > gmu->mmio = NULL; > gmu->rscc = NULL; > > - a6xx_gmu_memory_free(gmu); > + if (!adreno_has_gmu_wrapper(adreno_gpu)) { > + a6xx_gmu_memory_free(gmu); > > - free_irq(gmu->gmu_irq, gmu); > - free_irq(gmu->hfi_irq, gmu); > + free_irq(gmu->gmu_irq, gmu); > + free_irq(gmu->hfi_irq, gmu); > + } > > /* Drop reference taken in of_find_device_by_node */ > put_device(gmu->dev); > @@ -1504,6 +1507,48 @@ void a6xx_gmu_remove(struct a6xx_gpu *a6xx_gpu) > gmu->initialized = false; > } > > +int a6xx_gmu_wrapper_init(struct a6xx_gpu *a6xx_gpu, struct device_node *node) > +{ > + struct platform_device *pdev = of_find_device_by_node(node); > + struct a6xx_gmu *gmu = &a6xx_gpu->gmu; > + int ret; > + > + if (!pdev) > + return -ENODEV; > + > + gmu->dev = &pdev->dev; > + > + of_dma_configure(gmu->dev, node, true); > + > + pm_runtime_enable(gmu->dev); > + > + /* Mark legacy for manual SPTPRAC control */ > + gmu->legacy = true; > + > + /* Map the GMU registers */ > + gmu->mmio = a6xx_gmu_get_mmio(pdev, "gmu"); > + if (IS_ERR(gmu->mmio)) { > + ret = PTR_ERR(gmu->mmio); > + goto err_mmio; > + } > + > + /* Get a link to the GX power domain to reset the GPU */ > + gmu->gxpd = dev_pm_domain_attach_by_name(gmu->dev, "gx"); > + > + gmu->initialized = true; > + > + return 0; > + > +err_mmio: > + iounmap(gmu->mmio); > + ret = -ENODEV; > + > + /* Drop reference taken in of_find_device_by_node */ > + put_device(gmu->dev); > + > + return ret; > +} > + > int a6xx_gmu_init(struct a6xx_gpu *a6xx_gpu, struct device_node *node) > { > struct adreno_gpu *adreno_gpu = &a6xx_gpu->base; > diff --git a/drivers/gpu/drm/msm/adreno/a6xx_gpu.c b/drivers/gpu/drm/msm/adreno/a6xx_gpu.c > index 8855d798bbb3..72bf5c9f7ff1 100644 > --- a/drivers/gpu/drm/msm/adreno/a6xx_gpu.c > +++ b/drivers/gpu/drm/msm/adreno/a6xx_gpu.c > @@ -20,9 +20,11 @@ static inline bool _a6xx_check_idle(struct msm_gpu *gpu) > struct adreno_gpu *adreno_gpu = to_adreno_gpu(gpu); > struct a6xx_gpu *a6xx_gpu = to_a6xx_gpu(adreno_gpu); > > - /* Check that the GMU is idle */ > - if (!a6xx_gmu_isidle(&a6xx_gpu->gmu)) > - return false; > + if (!adreno_has_gmu_wrapper(adreno_gpu)) { > + /* Check that the GMU is idle */ > + if (!a6xx_gmu_isidle(&a6xx_gpu->gmu)) > + return false; > + } > > /* Check tha the CX master is idle */ > if (gpu_read(gpu, REG_A6XX_RBBM_STATUS) & > @@ -612,13 +614,15 @@ static void a6xx_set_hwcg(struct msm_gpu *gpu, bool state) > return; > > /* Disable SP clock before programming HWCG registers */ > - gmu_rmw(gmu, REG_A6XX_GPU_GMU_GX_SPTPRAC_CLOCK_CONTROL, 1, 0); > + if (!adreno_has_gmu_wrapper(adreno_gpu)) > + gmu_rmw(gmu, REG_A6XX_GPU_GMU_GX_SPTPRAC_CLOCK_CONTROL, 1, 0); > > for (i = 0; (reg = &adreno_gpu->info->hwcg[i], reg->offset); i++) > gpu_write(gpu, reg->offset, state ? reg->value : 0); > > /* Enable SP clock */ > - gmu_rmw(gmu, REG_A6XX_GPU_GMU_GX_SPTPRAC_CLOCK_CONTROL, 0, 1); > + if (!adreno_has_gmu_wrapper(adreno_gpu)) > + gmu_rmw(gmu, REG_A6XX_GPU_GMU_GX_SPTPRAC_CLOCK_CONTROL, 0, 1); > > gpu_write(gpu, REG_A6XX_RBBM_CLOCK_CNTL, state ? clock_cntl_on : 0); > } > @@ -994,10 +998,13 @@ static int hw_init(struct msm_gpu *gpu) > { > struct adreno_gpu *adreno_gpu = to_adreno_gpu(gpu); > struct a6xx_gpu *a6xx_gpu = to_a6xx_gpu(adreno_gpu); > + struct a6xx_gmu *gmu = &a6xx_gpu->gmu; > int ret; > > - /* Make sure the GMU keeps the GPU on while we set it up */ > - a6xx_gmu_set_oob(&a6xx_gpu->gmu, GMU_OOB_GPU_SET); > + if (!adreno_has_gmu_wrapper(adreno_gpu)) { > + /* Make sure the GMU keeps the GPU on while we set it up */ > + a6xx_gmu_set_oob(&a6xx_gpu->gmu, GMU_OOB_GPU_SET); > + } > > /* Clear GBIF halt in case GX domain was not collapsed */ > if (a6xx_has_gbif(adreno_gpu)) > @@ -1123,6 +1130,17 @@ static int hw_init(struct msm_gpu *gpu) > 0x3f0243f0); > } > > + if (adreno_has_gmu_wrapper(adreno_gpu)) { > + /* Do it here, as GMU wrapper only inits the GMU for memory reservation etc. */ > + > + /* Set up the CX GMU counter 0 to count busy ticks */ > + gmu_write(gmu, REG_A6XX_GPU_GMU_AO_GPU_CX_BUSY_MASK, 0xff000000); > + > + /* Enable power counter 0 */ > + gmu_rmw(gmu, REG_A6XX_GMU_CX_GMU_POWER_COUNTER_SELECT_0, 0xff, BIT(5)); > + gmu_write(gmu, REG_A6XX_GMU_CX_GMU_POWER_COUNTER_ENABLE, 1); > + } > + > /* Protect registers from the CP */ > a6xx_set_cp_protect(gpu); > > @@ -1231,6 +1249,8 @@ static int hw_init(struct msm_gpu *gpu) > } > > out: > + if (adreno_has_gmu_wrapper(adreno_gpu)) > + return ret; > /* > * Tell the GMU that we are done touching the GPU and it can start power > * management > @@ -1265,6 +1285,9 @@ static void a6xx_dump(struct msm_gpu *gpu) > adreno_dump(gpu); > } > > +#define GBIF_GX_HALT_MASK BIT(0) > +#define GBIF_CLIENT_HALT_MASK BIT(0) > +#define GBIF_ARB_HALT_MASK BIT(1) > #define VBIF_RESET_ACK_TIMEOUT 100 > #define VBIF_RESET_ACK_MASK 0x00f0 > > @@ -1296,7 +1319,8 @@ static void a6xx_recover(struct msm_gpu *gpu) > * Turn off keep alive that might have been enabled by the hang > * interrupt > */ > - gmu_write(&a6xx_gpu->gmu, REG_A6XX_GMU_GMU_PWR_COL_KEEPALIVE, 0); > + if (!adreno_has_gmu_wrapper(adreno_gpu)) > + gmu_write(&a6xx_gpu->gmu, REG_A6XX_GMU_GMU_PWR_COL_KEEPALIVE, 0); > > pm_runtime_dont_use_autosuspend(&gpu->pdev->dev); > > @@ -1320,6 +1344,35 @@ static void a6xx_recover(struct msm_gpu *gpu) > /* Call into gpucc driver to poll for cx gdsc collapse */ > reset_control_reset(gpu->cx_collapse); > > + /* Software-reset the GPU */ > + if (adreno_has_gmu_wrapper(adreno_gpu)) { > + /* Halt the GX side of GBIF */ > + gpu_write(gpu, REG_A6XX_RBBM_GBIF_HALT, GBIF_GX_HALT_MASK); > + spin_until(gpu_read(gpu, REG_A6XX_RBBM_GBIF_HALT_ACK) & > + GBIF_GX_HALT_MASK); > + > + /* Halt new client requests on GBIF */ > + gpu_write(gpu, REG_A6XX_GBIF_HALT, GBIF_CLIENT_HALT_MASK); > + spin_until((gpu_read(gpu, REG_A6XX_GBIF_HALT_ACK) & > + (GBIF_CLIENT_HALT_MASK)) == GBIF_CLIENT_HALT_MASK); > + > + /* Halt all AXI requests on GBIF */ > + gpu_write(gpu, REG_A6XX_GBIF_HALT, GBIF_ARB_HALT_MASK); > + spin_until((gpu_read(gpu, REG_A6XX_GBIF_HALT_ACK) & > + (GBIF_ARB_HALT_MASK)) == GBIF_ARB_HALT_MASK); > + > + /* Clear the halts */ > + gpu_write(gpu, REG_A6XX_GBIF_HALT, 0); > + > + if (adreno_is_a619_holi(adreno_gpu)) > + gpu_write(gpu, 0x18, 0); > + else > + gpu_write(gpu, REG_A6XX_RBBM_GBIF_HALT, 0); > + > + /* This *really* needs to go through before we do anything else! */ > + mb(); > + } > + > pm_runtime_use_autosuspend(&gpu->pdev->dev); > > if (active_submits) > @@ -1504,7 +1557,8 @@ static void a6xx_fault_detect_irq(struct msm_gpu *gpu) > * Force the GPU to stay on until after we finish > * collecting information > */ > - gmu_write(&a6xx_gpu->gmu, REG_A6XX_GMU_GMU_PWR_COL_KEEPALIVE, 1); > + if (!adreno_has_gmu_wrapper(adreno_gpu)) > + gmu_write(&a6xx_gpu->gmu, REG_A6XX_GMU_GMU_PWR_COL_KEEPALIVE, 1); > > DRM_DEV_ERROR(&gpu->pdev->dev, > "gpu fault ring %d fence %x status %8.8X rb %4.4x/%4.4x ib1 %16.16llX/%4.4x ib2 %16.16llX/%4.4x\n", > @@ -1669,6 +1723,7 @@ static int a6xx_pm_resume(struct msm_gpu *gpu) > { > struct adreno_gpu *adreno_gpu = to_adreno_gpu(gpu); > struct a6xx_gpu *a6xx_gpu = to_a6xx_gpu(adreno_gpu); > + struct a6xx_gmu *gmu = &a6xx_gpu->gmu; > int ret; > > gpu->needs_hw_init = true; > @@ -1676,35 +1731,81 @@ static int a6xx_pm_resume(struct msm_gpu *gpu) > trace_msm_gpu_resume(0); > > mutex_lock(&a6xx_gpu->gmu.lock); > - ret = a6xx_gmu_resume(a6xx_gpu); > - mutex_unlock(&a6xx_gpu->gmu.lock); > - if (ret) > - return ret; > > - msm_devfreq_resume(gpu); > + if (!adreno_has_gmu_wrapper(adreno_gpu)) { > + ret = a6xx_gmu_resume(a6xx_gpu); > + mutex_unlock(&a6xx_gpu->gmu.lock); > + if (ret) > + return ret; > > - a6xx_llc_activate(a6xx_gpu); > + msm_devfreq_resume(gpu); > > - return 0; > + a6xx_llc_activate(a6xx_gpu); > + } else { > + pm_runtime_get_sync(gmu->dev); > + if (!IS_ERR_OR_NULL(gmu->gxpd)) > + pm_runtime_get_sync(gmu->gxpd); > + > + /* Set the core clock, having VDD scaling in mind */ > + ret = dev_pm_opp_set_rate(gpu->dev->dev, gpu->fast_rate); > + if (ret) > + return ret;
Both this function and the suspend one below would leave the mutex enabled in the error path.
I'd add a6xx_gmu_wrapper_suspend() / _resume() instead, call them conditionally close to the plain a6xx_gmu_suspend() / _resume and then add a !wrapper contition to the a6xx_llc_(de)activate() calls.
> + > + ret = clk_bulk_prepare_enable(gpu->nr_clocks, gpu->grp_clks); > + if (ret) > + return ret; > + > + ret = clk_prepare_enable(gpu->ebi1_clk); > + if (ret) > + return ret; > + > + mutex_unlock(&a6xx_gpu->gmu.lock); > + > + msm_devfreq_resume(gpu); > + } > + > + return ret; > } > > static int a6xx_pm_suspend(struct msm_gpu *gpu) > { > struct adreno_gpu *adreno_gpu = to_adreno_gpu(gpu); > struct a6xx_gpu *a6xx_gpu = to_a6xx_gpu(adreno_gpu); > + struct a6xx_gmu *gmu = &a6xx_gpu->gmu; > int i, ret; > > trace_msm_gpu_suspend(0); > > - a6xx_llc_deactivate(a6xx_gpu); > + if (!adreno_has_gmu_wrapper(adreno_gpu)) { > + a6xx_llc_deactivate(a6xx_gpu); > > - msm_devfreq_suspend(gpu); > + msm_devfreq_suspend(gpu); > > - mutex_lock(&a6xx_gpu->gmu.lock); > - ret = a6xx_gmu_stop(a6xx_gpu); > - mutex_unlock(&a6xx_gpu->gmu.lock); > - if (ret) > - return ret; > + mutex_lock(&a6xx_gpu->gmu.lock); > + ret = a6xx_gmu_stop(a6xx_gpu); > + mutex_unlock(&a6xx_gpu->gmu.lock); > + if (ret) > + return ret; > + } else { > + msm_devfreq_suspend(gpu); > + > + mutex_lock(&a6xx_gpu->gmu.lock); > + > + ret = clk_prepare_enable(gpu->ebi1_clk); > + if (ret) > + return ret; > + > + ret = clk_set_rate(gpu->core_clk, 0); > + if (ret) > + return ret; > + > + if (!IS_ERR_OR_NULL(gmu->gxpd)) > + pm_runtime_put_sync(gmu->gxpd); > + > + pm_runtime_put_sync(gmu->dev); > + > + mutex_unlock(&a6xx_gpu->gmu.lock); > + } > > if (a6xx_gpu->shadow_bo) > for (i = 0; i < gpu->nr_rings; i++) > @@ -1720,6 +1821,11 @@ static int a6xx_get_timestamp(struct msm_gpu *gpu, uint64_t *value) > struct adreno_gpu *adreno_gpu = to_adreno_gpu(gpu); > struct a6xx_gpu *a6xx_gpu = to_a6xx_gpu(adreno_gpu); > > + if (adreno_has_gmu_wrapper(adreno_gpu)) { > + *value = gpu_read64(gpu, REG_A6XX_CP_ALWAYS_ON_COUNTER_LO); > + return 0; > + } > + > mutex_lock(&a6xx_gpu->gmu.lock); > > /* Force the GPU power on so we can read this register */ > @@ -1757,7 +1863,8 @@ static void a6xx_destroy(struct msm_gpu *gpu) > drm_gem_object_put(a6xx_gpu->shadow_bo); > } > > - a6xx_llc_slices_destroy(a6xx_gpu); > + if (!adreno_has_gmu_wrapper(adreno_gpu)) > + a6xx_llc_slices_destroy(a6xx_gpu); > > a6xx_gmu_remove(a6xx_gpu); > > @@ -2020,6 +2127,34 @@ static const struct adreno_gpu_funcs funcs = { > .get_timestamp = a6xx_get_timestamp, > }; > > +static const struct adreno_gpu_funcs funcs_gmuwrapper = { > + .base = { > + .get_param = adreno_get_param, > + .set_param = adreno_set_param, > + .hw_init = a6xx_hw_init, > + .pm_suspend = a6xx_pm_suspend, > + .pm_resume = a6xx_pm_resume, > + .recover = a6xx_recover, > + .submit = a6xx_submit, > + .active_ring = a6xx_active_ring, > + .irq = a6xx_irq, > + .destroy = a6xx_destroy, > +#if defined(CONFIG_DRM_MSM_GPU_STATE) > + .show = a6xx_show, > +#endif > + .gpu_busy = a6xx_gpu_busy, > +#if defined(CONFIG_DRM_MSM_GPU_STATE) > + .gpu_state_get = a6xx_gpu_state_get, > + .gpu_state_put = a6xx_gpu_state_put, > +#endif > + .create_address_space = a6xx_create_address_space, > + .create_private_address_space = a6xx_create_private_address_space, > + .get_rptr = a6xx_get_rptr, > + .progress = a6xx_progress, > + }, > + .get_timestamp = a6xx_get_timestamp, > +}; > + > struct msm_gpu *a6xx_gpu_init(struct drm_device *dev) > { > struct msm_drm_private *priv = dev->dev_private; > @@ -2052,7 +2187,9 @@ struct msm_gpu *a6xx_gpu_init(struct drm_device *dev) > adreno_cmp_rev(ADRENO_REV(6, 3, 5, ANY_ID), info->rev))) > adreno_gpu->base.hw_apriv = true; > > - a6xx_llc_slices_init(pdev, a6xx_gpu); > + /* No LLCC on non-RPMh (and by extension, non-GMU) SoCs */ > + if (info && info->quirks & ~ADRENO_QUIRK_GMU_WRAPPER) > + a6xx_llc_slices_init(pdev, a6xx_gpu); > > ret = a6xx_set_supported_hw(&pdev->dev, config->rev); > if (ret) { > @@ -2060,7 +2197,10 @@ struct msm_gpu *a6xx_gpu_init(struct drm_device *dev) > return ERR_PTR(ret); > } > > - ret = adreno_gpu_init(dev, pdev, adreno_gpu, &funcs, 1); > + if (info && info->quirks & ADRENO_QUIRK_GMU_WRAPPER)
I think !info should be a fatal error here.
Also you can set gpu->info early in this function and use the existing adreno_has_gmu_wrapper() instead of hand-coding it here.
> + ret = adreno_gpu_init(dev, pdev, adreno_gpu, &funcs_gmuwrapper, 1); > + else > + ret = adreno_gpu_init(dev, pdev, adreno_gpu, &funcs, 1); > if (ret) { > a6xx_destroy(&(a6xx_gpu->base.base)); > return ERR_PTR(ret); > @@ -2075,11 +2215,13 @@ struct msm_gpu *a6xx_gpu_init(struct drm_device *dev) > > /* Check if there is a GMU phandle and set it up */ > node = of_parse_phandle(pdev->dev.of_node, "qcom,gmu", 0); > - > /* FIXME: How do we gracefully handle this? */ > BUG_ON(!node); > > - ret = a6xx_gmu_init(a6xx_gpu, node); > + if (adreno_has_gmu_wrapper(adreno_gpu)) > + ret = a6xx_gmu_wrapper_init(a6xx_gpu, node); > + else > + ret = a6xx_gmu_init(a6xx_gpu, node); > of_node_put(node); > if (ret) { > a6xx_destroy(&(a6xx_gpu->base.base)); > diff --git a/drivers/gpu/drm/msm/adreno/a6xx_gpu.h b/drivers/gpu/drm/msm/adreno/a6xx_gpu.h > index eea2e60ce3b7..51a7656072fa 100644 > --- a/drivers/gpu/drm/msm/adreno/a6xx_gpu.h > +++ b/drivers/gpu/drm/msm/adreno/a6xx_gpu.h > @@ -76,6 +76,7 @@ int a6xx_gmu_set_oob(struct a6xx_gmu *gmu, enum a6xx_gmu_oob_state state); > void a6xx_gmu_clear_oob(struct a6xx_gmu *gmu, enum a6xx_gmu_oob_state state); > > int a6xx_gmu_init(struct a6xx_gpu *a6xx_gpu, struct device_node *node); > +int a6xx_gmu_wrapper_init(struct a6xx_gpu *a6xx_gpu, struct device_node *node); > void a6xx_gmu_remove(struct a6xx_gpu *a6xx_gpu); > > void a6xx_gmu_set_freq(struct msm_gpu *gpu, struct dev_pm_opp *opp, > diff --git a/drivers/gpu/drm/msm/adreno/a6xx_gpu_state.c b/drivers/gpu/drm/msm/adreno/a6xx_gpu_state.c > index b7e217d00a22..e11e8a02ac22 100644 > --- a/drivers/gpu/drm/msm/adreno/a6xx_gpu_state.c > +++ b/drivers/gpu/drm/msm/adreno/a6xx_gpu_state.c > @@ -1041,16 +1041,18 @@ struct msm_gpu_state *a6xx_gpu_state_get(struct msm_gpu *gpu) > /* Get the generic state from the adreno core */ > adreno_gpu_state_get(gpu, &a6xx_state->base); > > - a6xx_get_gmu_registers(gpu, a6xx_state); > + if (!adreno_has_gmu_wrapper(adreno_gpu)) { > + a6xx_get_gmu_registers(gpu, a6xx_state); > > - a6xx_state->gmu_log = a6xx_snapshot_gmu_bo(a6xx_state, &a6xx_gpu->gmu.log); > - a6xx_state->gmu_hfi = a6xx_snapshot_gmu_bo(a6xx_state, &a6xx_gpu->gmu.hfi); > - a6xx_state->gmu_debug = a6xx_snapshot_gmu_bo(a6xx_state, &a6xx_gpu->gmu.debug); > + a6xx_state->gmu_log = a6xx_snapshot_gmu_bo(a6xx_state, &a6xx_gpu->gmu.log); > + a6xx_state->gmu_hfi = a6xx_snapshot_gmu_bo(a6xx_state, &a6xx_gpu->gmu.hfi); > + a6xx_state->gmu_debug = a6xx_snapshot_gmu_bo(a6xx_state, &a6xx_gpu->gmu.debug); > > - a6xx_snapshot_gmu_hfi_history(gpu, a6xx_state); > + a6xx_snapshot_gmu_hfi_history(gpu, a6xx_state); > + } > > /* If GX isn't on the rest of the data isn't going to be accessible */ > - if (!a6xx_gmu_gx_is_on(&a6xx_gpu->gmu)) > + if (!adreno_has_gmu_wrapper(adreno_gpu) && !a6xx_gmu_gx_is_on(&a6xx_gpu->gmu)) > return &a6xx_state->base; > > /* Get the banks of indexed registers */ > diff --git a/drivers/gpu/drm/msm/adreno/adreno_gpu.h b/drivers/gpu/drm/msm/adreno/adreno_gpu.h > index b4f9b1343d63..7c5e0a90b5fb 100644 > --- a/drivers/gpu/drm/msm/adreno/adreno_gpu.h > +++ b/drivers/gpu/drm/msm/adreno/adreno_gpu.h > @@ -32,6 +32,7 @@ enum { > #define ADRENO_QUIRK_TWO_PASS_USE_WFI BIT(0) > #define ADRENO_QUIRK_FAULT_DETECT_MASK BIT(1) > #define ADRENO_QUIRK_LMLOADKILL_DISABLE BIT(2) > +#define ADRENO_QUIRK_GMU_WRAPPER BIT(3) > > struct adreno_rev { > uint8_t core; > @@ -145,6 +146,11 @@ struct adreno_platform_config { > > bool adreno_cmp_rev(struct adreno_rev rev1, struct adreno_rev rev2); > > +static inline bool adreno_has_gmu_wrapper(struct adreno_gpu *gpu) > +{ > + return !!(gpu->info->quirks & ADRENO_QUIRK_GMU_WRAPPER); > +} > + > static inline bool adreno_is_a2xx(struct adreno_gpu *gpu) > { > return (gpu->revn < 300);
-- With best wishes Dmitry
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