From 7381e27b1e563aa8a1c6bcf74a8cadb6901c283a Mon Sep 17 00:00:00 2001 From: Georgi Djakov Date: Fri, 6 Nov 2020 16:48:47 +0200 Subject: [PATCH 1/5] interconnect: qcom: msm8974: Prevent integer overflow in rate When sync_state support got introduced recently, by default we try to set the NoCs to run initially at maximum rate. But as these values are aggregated, we may end with a really big clock rate value, which is then converted from "u64" to "long" during the clock rate rounding. But on 32bit platforms this may result an overflow. Fix it by making sure that the rate is within range. Reported-by: Luca Weiss Reviewed-by: Brian Masney Link: https://lore.kernel.org/r/20201106144847.7726-1-georgi.djakov@linaro.org Signed-off-by: Georgi Djakov --- drivers/interconnect/qcom/msm8974.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/interconnect/qcom/msm8974.c b/drivers/interconnect/qcom/msm8974.c index 3a313e11e73d..b6b639dad691 100644 --- a/drivers/interconnect/qcom/msm8974.c +++ b/drivers/interconnect/qcom/msm8974.c @@ -618,6 +618,8 @@ static int msm8974_icc_set(struct icc_node *src, struct icc_node *dst) do_div(rate, src_qn->buswidth); + rate = min_t(u32, rate, INT_MAX); + if (src_qn->rate == rate) return 0; @@ -758,6 +760,7 @@ static struct platform_driver msm8974_noc_driver = { .driver = { .name = "qnoc-msm8974", .of_match_table = msm8974_noc_of_match, + .sync_state = icc_sync_state, }, }; module_platform_driver(msm8974_noc_driver); From 9caf2d956cfa254c6d89c5f4d7b3f8235d75b28f Mon Sep 17 00:00:00 2001 From: Georgi Djakov Date: Mon, 9 Nov 2020 14:45:12 +0200 Subject: [PATCH 2/5] interconnect: qcom: msm8974: Don't boost the NoC rate during boot It has been reported that on Fairphone 2 (msm8974-based), increasing the clock rate for some of the NoCs during boot may lead to hangs. Let's restore the original behavior and not touch the clock rate of any of the NoCs to fix the regression. Reported-by: Luca Weiss Tested-by: Luca Weiss Fixes: b1d681d8d324 ("interconnect: Add sync state support") Link: https://lore.kernel.org/r/20201109124512.10776-1-georgi.djakov@linaro.org Signed-off-by: Georgi Djakov --- drivers/interconnect/qcom/msm8974.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/drivers/interconnect/qcom/msm8974.c b/drivers/interconnect/qcom/msm8974.c index b6b639dad691..da68ce375a89 100644 --- a/drivers/interconnect/qcom/msm8974.c +++ b/drivers/interconnect/qcom/msm8974.c @@ -637,6 +637,14 @@ static int msm8974_icc_set(struct icc_node *src, struct icc_node *dst) return 0; } +static int msm8974_get_bw(struct icc_node *node, u32 *avg, u32 *peak) +{ + *avg = 0; + *peak = 0; + + return 0; +} + static int msm8974_icc_probe(struct platform_device *pdev) { const struct msm8974_icc_desc *desc; @@ -690,6 +698,7 @@ static int msm8974_icc_probe(struct platform_device *pdev) provider->aggregate = icc_std_aggregate; provider->xlate = of_icc_xlate_onecell; provider->data = data; + provider->get_bw = msm8974_get_bw; ret = icc_provider_add(provider); if (ret) { From c497f9322af947204c28292be6f20dd2d97483dd Mon Sep 17 00:00:00 2001 From: Georgi Djakov Date: Thu, 12 Nov 2020 12:51:40 +0200 Subject: [PATCH 3/5] interconnect: qcom: msm8916: Remove rpm-ids from non-RPM nodes Some nodes are incorrectly marked as RPM-controlled (they have RPM master and slave ids assigned), but are actually controlled by the application CPU instead. The RPM complains when we send requests for resources that it can't control. Let's fix this by replacing the IDs, with the default "-1" in which case no requests are sent. Reviewed-by: Mike Tipton Link: https://lore.kernel.org/r/20201112105140.10092-1-georgi.djakov@linaro.org Signed-off-by: Georgi Djakov --- drivers/interconnect/qcom/msm8916.c | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-) diff --git a/drivers/interconnect/qcom/msm8916.c b/drivers/interconnect/qcom/msm8916.c index 42c6c5581662..e8371d40ab8d 100644 --- a/drivers/interconnect/qcom/msm8916.c +++ b/drivers/interconnect/qcom/msm8916.c @@ -182,7 +182,7 @@ DEFINE_QNODE(mas_pcnoc_sdcc_1, MSM8916_MASTER_SDCC_1, 8, -1, -1, MSM8916_PNOC_IN DEFINE_QNODE(mas_pcnoc_sdcc_2, MSM8916_MASTER_SDCC_2, 8, -1, -1, MSM8916_PNOC_INT_1); DEFINE_QNODE(mas_qdss_bam, MSM8916_MASTER_QDSS_BAM, 8, -1, -1, MSM8916_SNOC_QDSS_INT); DEFINE_QNODE(mas_qdss_etr, MSM8916_MASTER_QDSS_ETR, 8, -1, -1, MSM8916_SNOC_QDSS_INT); -DEFINE_QNODE(mas_snoc_cfg, MSM8916_MASTER_SNOC_CFG, 4, 20, -1, MSM8916_SNOC_QDSS_INT); +DEFINE_QNODE(mas_snoc_cfg, MSM8916_MASTER_SNOC_CFG, 4, -1, -1, MSM8916_SNOC_QDSS_INT); DEFINE_QNODE(mas_spdm, MSM8916_MASTER_SPDM, 4, -1, -1, MSM8916_PNOC_MAS_0); DEFINE_QNODE(mas_tcu0, MSM8916_MASTER_TCU0, 8, -1, -1, MSM8916_SLAVE_EBI_CH0, MSM8916_BIMC_SNOC_MAS, MSM8916_SLAVE_AMPSS_L2); DEFINE_QNODE(mas_tcu1, MSM8916_MASTER_TCU1, 8, -1, -1, MSM8916_SLAVE_EBI_CH0, MSM8916_BIMC_SNOC_MAS, MSM8916_SLAVE_AMPSS_L2); @@ -208,14 +208,14 @@ DEFINE_QNODE(pcnoc_snoc_mas, MSM8916_PNOC_SNOC_MAS, 8, 29, -1, MSM8916_PNOC_SNOC DEFINE_QNODE(pcnoc_snoc_slv, MSM8916_PNOC_SNOC_SLV, 8, -1, 45, MSM8916_SNOC_INT_0, MSM8916_SNOC_INT_BIMC, MSM8916_SNOC_INT_1); DEFINE_QNODE(qdss_int, MSM8916_SNOC_QDSS_INT, 8, -1, -1, MSM8916_SNOC_INT_0, MSM8916_SNOC_INT_BIMC); DEFINE_QNODE(slv_apps_l2, MSM8916_SLAVE_AMPSS_L2, 8, -1, -1, 0); -DEFINE_QNODE(slv_apss, MSM8916_SLAVE_APSS, 4, -1, 20, 0); +DEFINE_QNODE(slv_apss, MSM8916_SLAVE_APSS, 4, -1, -1, 0); DEFINE_QNODE(slv_audio, MSM8916_SLAVE_LPASS, 4, -1, -1, 0); DEFINE_QNODE(slv_bimc_cfg, MSM8916_SLAVE_BIMC_CFG, 4, -1, -1, 0); DEFINE_QNODE(slv_blsp_1, MSM8916_SLAVE_BLSP_1, 4, -1, -1, 0); DEFINE_QNODE(slv_boot_rom, MSM8916_SLAVE_BOOT_ROM, 4, -1, -1, 0); DEFINE_QNODE(slv_camera_cfg, MSM8916_SLAVE_CAMERA_CFG, 4, -1, -1, 0); -DEFINE_QNODE(slv_cats_0, MSM8916_SLAVE_CATS_128, 16, -1, 106, 0); -DEFINE_QNODE(slv_cats_1, MSM8916_SLAVE_OCMEM_64, 8, -1, 107, 0); +DEFINE_QNODE(slv_cats_0, MSM8916_SLAVE_CATS_128, 16, -1, -1, 0); +DEFINE_QNODE(slv_cats_1, MSM8916_SLAVE_OCMEM_64, 8, -1, -1, 0); DEFINE_QNODE(slv_clk_ctl, MSM8916_SLAVE_CLK_CTL, 4, -1, -1, 0); DEFINE_QNODE(slv_crypto_0_cfg, MSM8916_SLAVE_CRYPTO_0_CFG, 4, -1, -1, 0); DEFINE_QNODE(slv_dehr_cfg, MSM8916_SLAVE_DEHR_CFG, 4, -1, -1, 0); @@ -239,7 +239,7 @@ DEFINE_QNODE(slv_sdcc_2, MSM8916_SLAVE_SDCC_2, 4, -1, -1, 0); DEFINE_QNODE(slv_security, MSM8916_SLAVE_SECURITY, 4, -1, -1, 0); DEFINE_QNODE(slv_snoc_cfg, MSM8916_SLAVE_SNOC_CFG, 4, -1, -1, 0); DEFINE_QNODE(slv_spdm, MSM8916_SLAVE_SPDM, 4, -1, -1, 0); -DEFINE_QNODE(slv_srvc_snoc, MSM8916_SLAVE_SRVC_SNOC, 8, -1, 29, 0); +DEFINE_QNODE(slv_srvc_snoc, MSM8916_SLAVE_SRVC_SNOC, 8, -1, -1, 0); DEFINE_QNODE(slv_tcsr, MSM8916_SLAVE_TCSR, 4, -1, -1, 0); DEFINE_QNODE(slv_tlmm, MSM8916_SLAVE_TLMM, 4, -1, -1, 0); DEFINE_QNODE(slv_usb_hs, MSM8916_SLAVE_USB_HS, 4, -1, -1, 0); @@ -249,7 +249,7 @@ DEFINE_QNODE(snoc_bimc_0_slv, MSM8916_SNOC_BIMC_0_SLV, 8, -1, 24, MSM8916_SLAVE_ DEFINE_QNODE(snoc_bimc_1_mas, MSM8916_SNOC_BIMC_1_MAS, 16, -1, -1, MSM8916_SNOC_BIMC_1_SLV); DEFINE_QNODE(snoc_bimc_1_slv, MSM8916_SNOC_BIMC_1_SLV, 8, -1, -1, MSM8916_SLAVE_EBI_CH0); DEFINE_QNODE(snoc_int_0, MSM8916_SNOC_INT_0, 8, 99, 130, MSM8916_SLAVE_QDSS_STM, MSM8916_SLAVE_IMEM, MSM8916_SNOC_PNOC_MAS); -DEFINE_QNODE(snoc_int_1, MSM8916_SNOC_INT_1, 8, 100, 131, MSM8916_SLAVE_APSS, MSM8916_SLAVE_CATS_128, MSM8916_SLAVE_OCMEM_64); +DEFINE_QNODE(snoc_int_1, MSM8916_SNOC_INT_1, 8, -1, -1, MSM8916_SLAVE_APSS, MSM8916_SLAVE_CATS_128, MSM8916_SLAVE_OCMEM_64); DEFINE_QNODE(snoc_int_bimc, MSM8916_SNOC_INT_BIMC, 8, 101, 132, MSM8916_SNOC_BIMC_0_MAS); DEFINE_QNODE(snoc_pcnoc_mas, MSM8916_SNOC_PNOC_MAS, 8, -1, -1, MSM8916_SNOC_PNOC_SLV); DEFINE_QNODE(snoc_pcnoc_slv, MSM8916_SNOC_PNOC_SLV, 8, -1, -1, MSM8916_PNOC_INT_0); From 7ab1e9117607485df977bb6e271be5c5ad649a4c Mon Sep 17 00:00:00 2001 From: Georgi Djakov Date: Wed, 18 Nov 2020 13:10:44 +0200 Subject: [PATCH 4/5] interconnect: qcom: qcs404: Remove GPU and display RPM IDs The following errors are noticed during boot on a QCS404 board: [ 2.926647] qcom_icc_rpm_smd_send mas 6 error -6 [ 2.934573] qcom_icc_rpm_smd_send mas 8 error -6 These errors show when we try to configure the GPU and display nodes. Since these particular nodes aren't supported on RPM and are purely local, we should just change their mas_rpm_id to -1 to avoid any requests being sent for these master IDs. Reviewed-by: Mike Tipton Reviewed-by: Bjorn Andersson Link: https://lore.kernel.org/r/20201118111044.26056-1-georgi.djakov@linaro.org Signed-off-by: Georgi Djakov --- drivers/interconnect/qcom/qcs404.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/interconnect/qcom/qcs404.c b/drivers/interconnect/qcom/qcs404.c index d4769a5ea182..9820709b43db 100644 --- a/drivers/interconnect/qcom/qcs404.c +++ b/drivers/interconnect/qcom/qcs404.c @@ -157,8 +157,8 @@ struct qcom_icc_desc { } DEFINE_QNODE(mas_apps_proc, QCS404_MASTER_AMPSS_M0, 8, 0, -1, QCS404_SLAVE_EBI_CH0, QCS404_BIMC_SNOC_SLV); -DEFINE_QNODE(mas_oxili, QCS404_MASTER_GRAPHICS_3D, 8, 6, -1, QCS404_SLAVE_EBI_CH0, QCS404_BIMC_SNOC_SLV); -DEFINE_QNODE(mas_mdp, QCS404_MASTER_MDP_PORT0, 8, 8, -1, QCS404_SLAVE_EBI_CH0, QCS404_BIMC_SNOC_SLV); +DEFINE_QNODE(mas_oxili, QCS404_MASTER_GRAPHICS_3D, 8, -1, -1, QCS404_SLAVE_EBI_CH0, QCS404_BIMC_SNOC_SLV); +DEFINE_QNODE(mas_mdp, QCS404_MASTER_MDP_PORT0, 8, -1, -1, QCS404_SLAVE_EBI_CH0, QCS404_BIMC_SNOC_SLV); DEFINE_QNODE(mas_snoc_bimc_1, QCS404_SNOC_BIMC_1_MAS, 8, 76, -1, QCS404_SLAVE_EBI_CH0); DEFINE_QNODE(mas_tcu_0, QCS404_MASTER_TCU_0, 8, -1, -1, QCS404_SLAVE_EBI_CH0, QCS404_BIMC_SNOC_SLV); DEFINE_QNODE(mas_spdm, QCS404_MASTER_SPDM, 4, -1, -1, QCS404_PNOC_INT_3); From 017496af28e2589c2c2cb396baba0507179d2748 Mon Sep 17 00:00:00 2001 From: Marek Szyprowski Date: Thu, 19 Nov 2020 11:37:46 +0100 Subject: [PATCH 5/5] interconnect: fix memory trashing in of_count_icc_providers() of_count_icc_providers() function uses for_each_available_child_of_node() helper to recursively check all the available nodes. This helper already properly handles child nodes' reference count, so there is no need to do it explicitly. Remove the excessive call to of_node_put(). This fixes memory trashing when CONFIG_OF_DYNAMIC is enabled (for example arm/multi_v7_defconfig). Fixes: b1d681d8d324 ("interconnect: Add sync state support") Signed-off-by: Marek Szyprowski Link: https://lore.kernel.org/r/20201119103746.32564-1-m.szyprowski@samsung.com Signed-off-by: Georgi Djakov --- drivers/interconnect/core.c | 1 - 1 file changed, 1 deletion(-) diff --git a/drivers/interconnect/core.c b/drivers/interconnect/core.c index 974a66725d09..5ad519c9f239 100644 --- a/drivers/interconnect/core.c +++ b/drivers/interconnect/core.c @@ -1083,7 +1083,6 @@ static int of_count_icc_providers(struct device_node *np) count++; count += of_count_icc_providers(child); } - of_node_put(np); return count; }