From: Archit Taneja <architt@codeaurora.org>
To: robdclark@gmail.com
Cc: linux-arm-msm@vger.kernel.org,
Sricharan R <sricharan@codeaurora.org>,
dri-devel@lists.freedesktop.org
Subject: [PATCH v2 3/7] drm/msm/mdp: Detach iommu in mdp4_destroy
Date: Thu, 25 Feb 2016 11:19:44 +0530 [thread overview]
Message-ID: <1456379388-14767-4-git-send-email-architt@codeaurora.org> (raw)
In-Reply-To: <1456379388-14767-1-git-send-email-architt@codeaurora.org>
From: Sricharan R <sricharan@codeaurora.org>
attach_dev gets called in mdp4_kms_init, but there is no corresponding
detach_dev called in the error path or in the kms driver unload path.
Detach and destroy mmu in mdp4_destroy.
Signed-off-by: Sricharan R <sricharan@codeaurora.org>
Signed-off-by: Archit Taneja <architt@codeaurora.org>
---
drivers/gpu/drm/msm/mdp/mdp4/mdp4_kms.c | 17 +++++++++++++----
drivers/gpu/drm/msm/mdp/mdp4/mdp4_kms.h | 1 +
2 files changed, 14 insertions(+), 4 deletions(-)
diff --git a/drivers/gpu/drm/msm/mdp/mdp4/mdp4_kms.c b/drivers/gpu/drm/msm/mdp/mdp4/mdp4_kms.c
index 1c8e330..54b9d9b 100644
--- a/drivers/gpu/drm/msm/mdp/mdp4/mdp4_kms.c
+++ b/drivers/gpu/drm/msm/mdp/mdp4/mdp4_kms.c
@@ -179,9 +179,20 @@ static long mdp4_round_pixclk(struct msm_kms *kms, unsigned long rate,
}
}
+static const char * const iommu_ports[] = {
+ "mdp_port0_cb0", "mdp_port1_cb0",
+};
+
static void mdp4_destroy(struct msm_kms *kms)
{
struct mdp4_kms *mdp4_kms = to_mdp4_kms(to_mdp_kms(kms));
+ struct msm_mmu *mmu = mdp4_kms->mmu;
+
+ if (mmu) {
+ mmu->funcs->detach(mmu, iommu_ports, ARRAY_SIZE(iommu_ports));
+ mmu->funcs->destroy(mmu);
+ }
+
if (mdp4_kms->blank_cursor_iova)
msm_gem_put_iova(mdp4_kms->blank_cursor_bo, mdp4_kms->id);
if (mdp4_kms->blank_cursor_bo)
@@ -446,10 +457,6 @@ fail:
return ret;
}
-static const char *iommu_ports[] = {
- "mdp_port0_cb0", "mdp_port1_cb0",
-};
-
struct msm_kms *mdp4_kms_init(struct drm_device *dev)
{
struct platform_device *pdev = dev->platformdev;
@@ -554,6 +561,8 @@ struct msm_kms *mdp4_kms_init(struct drm_device *dev)
ARRAY_SIZE(iommu_ports));
if (ret)
goto fail;
+
+ mdp4_kms->mmu = mmu;
} else {
dev_info(dev->dev, "no iommu, fallback to phys "
"contig buffers for scanout\n");
diff --git a/drivers/gpu/drm/msm/mdp/mdp4/mdp4_kms.h b/drivers/gpu/drm/msm/mdp/mdp4/mdp4_kms.h
index 9ec53b4..b282871 100644
--- a/drivers/gpu/drm/msm/mdp/mdp4/mdp4_kms.h
+++ b/drivers/gpu/drm/msm/mdp/mdp4/mdp4_kms.h
@@ -45,6 +45,7 @@ struct mdp4_kms {
struct clk *pclk;
struct clk *lut_clk;
struct clk *axi_clk;
+ struct msm_mmu *mmu;
struct mdp_irq error_handler;
--
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
hosted by The Linux Foundation
_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel
next prev parent reply other threads:[~2016-02-25 5:49 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-02-25 5:49 [PATCH v2 0/7] drm/msm: Misc patches Archit Taneja
2016-02-25 5:49 ` [PATCH v2 1/7] drm/msm/mdp: Use atomic helper to set crtc property Archit Taneja
2016-02-25 5:49 ` [PATCH v2 2/7] drm/msm: make iommu port names const'ier Archit Taneja
2016-02-25 5:49 ` Archit Taneja [this message]
2016-02-25 5:49 ` [PATCH v2 4/7] drm/msm: Free fb helper resources in msm_unload Archit Taneja
2016-02-25 5:49 ` [PATCH v2 5/7] drm/msm/dsi: Remove incorrect warning on host attach Archit Taneja
2016-02-25 5:49 ` [PATCH v2 6/7] drm/msm/dsi: Drop VDD regulator for MSM8916 Archit Taneja
2016-02-25 5:49 ` [PATCH v2 7/7] drm/msm/dsi: Parse DSI lanes via DT Archit Taneja
2016-03-02 17:37 ` Rob Herring
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1456379388-14767-4-git-send-email-architt@codeaurora.org \
--to=architt@codeaurora.org \
--cc=dri-devel@lists.freedesktop.org \
--cc=linux-arm-msm@vger.kernel.org \
--cc=robdclark@gmail.com \
--cc=sricharan@codeaurora.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).