From: Brian Norris <briannorris@chromium.org> To: Ulf Hansson <ulf.hansson@linaro.org> Cc: Shawn Lin <shawn.lin@rock-chips.com>, linux-mmc@vger.kernel.org, Al Cooper <alcooperx@gmail.com>, Bjorn Andersson <andersson@kernel.org>, Sowjanya Komatineni <skomatineni@nvidia.com>, Broadcom internal kernel review list <bcm-kernel-feedback-list@broadcom.com>, Sascha Hauer <s.hauer@pengutronix.de>, Konrad Dybcio <konrad.dybcio@somainline.org>, Florian Fainelli <f.fainelli@gmail.com>, NXP Linux Team <linux-imx@nxp.com>, Thierry Reding <thierry.reding@gmail.com>, Fabio Estevam <festevam@gmail.com>, Michal Simek <michal.simek@xilinx.com>, linux-kernel@vger.kernel.org, Shawn Guo <shawnguo@kernel.org>, Adrian Hunter <adrian.hunter@intel.com>, Pengutronix Kernel Team <kernel@pengutronix.de>, linux-arm-msm@vger.kernel.org, Haibo Chen <haibo.chen@nxp.com>, Andy Gross <agross@kernel.org>, linux-arm-kernel@lists.infradead.org, Faiz Abbas <faiz_abbas@ti.com>, Jonathan Hunter <jonathanh@nvidia.com>, Brian Norris <briannorris@chromium.org> Subject: [PATCH v3 3/7] mmc: sdhci-brcmstb: Fix SDHCI_RESET_ALL for CQHCI Date: Mon, 24 Oct 2022 10:54:57 -0700 [thread overview] Message-ID: <20221024105229.v3.3.I6a715feab6d01f760455865e968ecf0d85036018@changeid> (raw) In-Reply-To: <20221024175501.2265400-1-briannorris@chromium.org> [[ NOTE: this is completely untested by the author, but included solely because, as noted in commit df57d73276b8 ("mmc: sdhci-pci: Fix SDHCI_RESET_ALL for CQHCI for Intel GLK-based controllers"), "other drivers using CQHCI might benefit from a similar change, if they also have CQHCI reset by SDHCI_RESET_ALL." We've now seen the same bug on at least MSM, Arasan, and Intel hardware. ]] SDHCI_RESET_ALL resets will reset the hardware CQE state, but we aren't tracking that properly in software. When out of sync, we may trigger various timeouts. It's not typical to perform resets while CQE is enabled, but this may occur in some suspend or error recovery scenarios. Include this fix by way of the new sdhci_and_cqhci_reset() helper. Fixes: d46ba2d17f90 ("mmc: sdhci-brcmstb: Add support for Command Queuing (CQE)") Signed-off-by: Brian Norris <briannorris@chromium.org> --- Changes in v3: - Use new SDHCI+CQHCI helper Changes in v2: - Rely on cqhci_deactivate() to handle NULL cqe_private, instead of moving around CQE capability flags drivers/mmc/host/sdhci-brcmstb.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/mmc/host/sdhci-brcmstb.c b/drivers/mmc/host/sdhci-brcmstb.c index aff36a933ebe..55d8bd232695 100644 --- a/drivers/mmc/host/sdhci-brcmstb.c +++ b/drivers/mmc/host/sdhci-brcmstb.c @@ -12,6 +12,7 @@ #include <linux/bitops.h> #include <linux/delay.h> +#include "sdhci-cqhci.h" #include "sdhci-pltfm.h" #include "cqhci.h" @@ -55,7 +56,7 @@ static void brcmstb_reset(struct sdhci_host *host, u8 mask) struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host); struct sdhci_brcmstb_priv *priv = sdhci_pltfm_priv(pltfm_host); - sdhci_reset(host, mask); + sdhci_and_cqhci_reset(host, mask); /* Reset will clear this, so re-enable it */ if (priv->flags & BRCMSTB_PRIV_FLAGS_GATE_CLOCK) -- 2.38.0.135.g90850a2211-goog _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
WARNING: multiple messages have this Message-ID (diff)
From: Brian Norris <briannorris@chromium.org> To: Ulf Hansson <ulf.hansson@linaro.org> Cc: Shawn Lin <shawn.lin@rock-chips.com>, linux-mmc@vger.kernel.org, Al Cooper <alcooperx@gmail.com>, Bjorn Andersson <andersson@kernel.org>, Sowjanya Komatineni <skomatineni@nvidia.com>, Broadcom internal kernel review list <bcm-kernel-feedback-list@broadcom.com>, Sascha Hauer <s.hauer@pengutronix.de>, Konrad Dybcio <konrad.dybcio@somainline.org>, Florian Fainelli <f.fainelli@gmail.com>, NXP Linux Team <linux-imx@nxp.com>, Thierry Reding <thierry.reding@gmail.com>, Fabio Estevam <festevam@gmail.com>, Michal Simek <michal.simek@xilinx.com>, linux-kernel@vger.kernel.org, Shawn Guo <shawnguo@kernel.org>, Adrian Hunter <adrian.hunter@intel.com>, Pengutronix Kernel Team <kernel@pengutronix.de>, linux-arm-msm@vger.kernel.org, Haibo Chen <haibo.chen@nxp.com>, Andy Gross <agross@kernel.org>, linux-arm-kernel@lists.infradead.org, Faiz Abbas <faiz_abbas@ti.com>, Jonathan Hunter <jonathanh@nvidia.com>, Brian Norris <briannorris@chromium.org> Subject: [PATCH v3 3/7] mmc: sdhci-brcmstb: Fix SDHCI_RESET_ALL for CQHCI Date: Mon, 24 Oct 2022 10:54:57 -0700 [thread overview] Message-ID: <20221024105229.v3.3.I6a715feab6d01f760455865e968ecf0d85036018@changeid> (raw) In-Reply-To: <20221024175501.2265400-1-briannorris@chromium.org> [[ NOTE: this is completely untested by the author, but included solely because, as noted in commit df57d73276b8 ("mmc: sdhci-pci: Fix SDHCI_RESET_ALL for CQHCI for Intel GLK-based controllers"), "other drivers using CQHCI might benefit from a similar change, if they also have CQHCI reset by SDHCI_RESET_ALL." We've now seen the same bug on at least MSM, Arasan, and Intel hardware. ]] SDHCI_RESET_ALL resets will reset the hardware CQE state, but we aren't tracking that properly in software. When out of sync, we may trigger various timeouts. It's not typical to perform resets while CQE is enabled, but this may occur in some suspend or error recovery scenarios. Include this fix by way of the new sdhci_and_cqhci_reset() helper. Fixes: d46ba2d17f90 ("mmc: sdhci-brcmstb: Add support for Command Queuing (CQE)") Signed-off-by: Brian Norris <briannorris@chromium.org> --- Changes in v3: - Use new SDHCI+CQHCI helper Changes in v2: - Rely on cqhci_deactivate() to handle NULL cqe_private, instead of moving around CQE capability flags drivers/mmc/host/sdhci-brcmstb.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/mmc/host/sdhci-brcmstb.c b/drivers/mmc/host/sdhci-brcmstb.c index aff36a933ebe..55d8bd232695 100644 --- a/drivers/mmc/host/sdhci-brcmstb.c +++ b/drivers/mmc/host/sdhci-brcmstb.c @@ -12,6 +12,7 @@ #include <linux/bitops.h> #include <linux/delay.h> +#include "sdhci-cqhci.h" #include "sdhci-pltfm.h" #include "cqhci.h" @@ -55,7 +56,7 @@ static void brcmstb_reset(struct sdhci_host *host, u8 mask) struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host); struct sdhci_brcmstb_priv *priv = sdhci_pltfm_priv(pltfm_host); - sdhci_reset(host, mask); + sdhci_and_cqhci_reset(host, mask); /* Reset will clear this, so re-enable it */ if (priv->flags & BRCMSTB_PRIV_FLAGS_GATE_CLOCK) -- 2.38.0.135.g90850a2211-goog
next prev parent reply other threads:[~2022-10-24 17:57 UTC|newest] Thread overview: 50+ messages / expand[flat|nested] mbox.gz Atom feed top 2022-10-24 17:54 [PATCH v3 0/7] mmc: sdhci controllers: Fix SDHCI_RESET_ALL for CQHCI Brian Norris 2022-10-24 17:54 ` Brian Norris 2022-10-24 17:54 ` [PATCH v3 1/7] mmc: cqhci: Provide helper for resetting both SDHCI and CQHCI Brian Norris 2022-10-24 17:54 ` Brian Norris 2022-10-24 18:02 ` Florian Fainelli 2022-10-24 18:02 ` Florian Fainelli 2022-10-25 13:09 ` Adrian Hunter 2022-10-25 13:09 ` Adrian Hunter 2022-10-24 17:54 ` [PATCH v3 2/7] mmc: sdhci-of-arasan: Fix SDHCI_RESET_ALL for CQHCI Brian Norris 2022-10-24 17:54 ` Brian Norris 2022-10-25 13:09 ` Adrian Hunter 2022-10-25 13:09 ` Adrian Hunter 2022-10-24 17:54 ` Brian Norris [this message] 2022-10-24 17:54 ` [PATCH v3 3/7] mmc: sdhci-brcmstb: " Brian Norris 2022-10-24 18:04 ` Florian Fainelli 2022-10-24 18:04 ` Florian Fainelli 2022-10-25 13:09 ` Adrian Hunter 2022-10-25 13:09 ` Adrian Hunter 2022-10-24 17:54 ` [PATCH v3 4/7] mms: sdhci-esdhc-imx: " Brian Norris 2022-10-24 17:54 ` Brian Norris 2022-10-25 13:10 ` Adrian Hunter 2022-10-25 13:10 ` Adrian Hunter 2022-10-24 17:54 ` [PATCH v3 5/7] mmc: sdhci-tegra: " Brian Norris 2022-10-24 17:54 ` Brian Norris 2022-10-25 13:10 ` Adrian Hunter 2022-10-25 13:10 ` Adrian Hunter 2022-10-24 17:55 ` [PATCH v3 6/7] mmc: sdhci_am654: " Brian Norris 2022-10-24 17:55 ` Brian Norris 2022-10-25 13:10 ` Adrian Hunter 2022-10-25 13:10 ` Adrian Hunter 2022-10-25 21:45 ` Brian Norris 2022-10-25 21:45 ` Brian Norris 2022-10-25 21:53 ` Florian Fainelli 2022-10-25 21:53 ` Florian Fainelli 2022-10-25 22:26 ` Brian Norris 2022-10-25 22:26 ` Brian Norris 2022-10-25 23:29 ` Florian Fainelli 2022-10-25 23:29 ` Florian Fainelli 2022-10-26 5:36 ` Adrian Hunter 2022-10-26 5:36 ` Adrian Hunter 2022-10-26 18:18 ` Brian Norris 2022-10-26 18:18 ` Brian Norris 2022-10-26 18:23 ` Florian Fainelli 2022-10-26 18:23 ` Florian Fainelli 2022-10-27 5:45 ` Adrian Hunter 2022-10-27 5:45 ` Adrian Hunter 2022-10-24 17:55 ` [PATCH v3 7/7] mmc: sdhci-*: Convert drivers to new sdhci_and_cqhci_reset() Brian Norris 2022-10-24 17:55 ` Brian Norris 2022-10-25 13:10 ` Adrian Hunter 2022-10-25 13:10 ` Adrian Hunter
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