Nothing was using the lengths of these ioremaps.
Signed-off-by: Eric Anholt eric@anholt.net --- drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c | 21 --------------------- drivers/gpu/drm/msm/disp/dpu1/dpu_kms.h | 1 - drivers/gpu/drm/msm/disp/dpu1/dpu_mdss.c | 9 --------- 3 files changed, 31 deletions(-)
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c index 680527e28d09..a4ab802fee6d 100644 --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c @@ -45,20 +45,6 @@ static int dpu_kms_hw_init(struct msm_kms *kms); static void _dpu_kms_mmu_destroy(struct dpu_kms *dpu_kms);
-static unsigned long dpu_iomap_size(struct platform_device *pdev, - const char *name) -{ - struct resource *res; - - res = platform_get_resource_byname(pdev, IORESOURCE_MEM, name); - if (!res) { - DRM_ERROR("failed to get memory resource: %s\n", name); - return 0; - } - - return resource_size(res); -} - #ifdef CONFIG_DEBUG_FS static int _dpu_danger_signal_status(struct seq_file *s, bool danger_status) @@ -844,7 +830,6 @@ static int dpu_kms_hw_init(struct msm_kms *kms) goto error; } DRM_DEBUG("mapped dpu address space @%pK\n", dpu_kms->mmio); - dpu_kms->mmio_len = dpu_iomap_size(dpu_kms->pdev, "mdp");
dpu_kms->vbif[VBIF_RT] = msm_ioremap(dpu_kms->pdev, "vbif", "vbif"); if (IS_ERR(dpu_kms->vbif[VBIF_RT])) { @@ -853,22 +838,16 @@ static int dpu_kms_hw_init(struct msm_kms *kms) dpu_kms->vbif[VBIF_RT] = NULL; goto error; } - dpu_kms->vbif_len[VBIF_RT] = dpu_iomap_size(dpu_kms->pdev, "vbif"); dpu_kms->vbif[VBIF_NRT] = msm_ioremap(dpu_kms->pdev, "vbif_nrt", "vbif_nrt"); if (IS_ERR(dpu_kms->vbif[VBIF_NRT])) { dpu_kms->vbif[VBIF_NRT] = NULL; DPU_DEBUG("VBIF NRT is not defined"); - } else { - dpu_kms->vbif_len[VBIF_NRT] = dpu_iomap_size(dpu_kms->pdev, - "vbif_nrt"); }
dpu_kms->reg_dma = msm_ioremap(dpu_kms->pdev, "regdma", "regdma"); if (IS_ERR(dpu_kms->reg_dma)) { dpu_kms->reg_dma = NULL; DPU_DEBUG("REG_DMA is not defined"); - } else { - dpu_kms->reg_dma_len = dpu_iomap_size(dpu_kms->pdev, "regdma"); }
pm_runtime_get_sync(&dpu_kms->pdev->dev); diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.h b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.h index 4e32d040f1e6..13034cdb8665 100644 --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.h +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.h @@ -100,7 +100,6 @@ struct dpu_kms {
/* io/register spaces: */ void __iomem *mmio, *vbif[VBIF_MAX], *reg_dma; - unsigned long mmio_len, vbif_len[VBIF_MAX], reg_dma_len;
struct regulator *vdd; struct regulator *mmagic; diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_mdss.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_mdss.c index 80d3cfc14007..9f20b84d5c0a 100644 --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_mdss.c +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_mdss.c @@ -37,7 +37,6 @@ struct dpu_mdss_hw_init_handler { struct dpu_mdss { struct msm_mdss base; void __iomem *mmio; - unsigned long mmio_len; struct dss_module_power mp; struct dpu_irq_controller irq_controller; struct icc_path *path[2]; @@ -292,7 +291,6 @@ int dpu_mdss_init(struct drm_device *dev) { struct platform_device *pdev = to_platform_device(dev->dev); struct msm_drm_private *priv = dev->dev_private; - struct resource *res; struct dpu_mdss *dpu_mdss; struct dss_module_power *mp; int ret = 0; @@ -308,13 +306,6 @@ int dpu_mdss_init(struct drm_device *dev)
DRM_DEBUG("mapped mdss address space @%pK\n", dpu_mdss->mmio);
- res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "mdss"); - if (!res) { - DRM_ERROR("failed to get memory resource for mdss\n"); - return -ENOMEM; - } - dpu_mdss->mmio_len = resource_size(res); - ret = dpu_mdss_parse_data_bus_icc_path(dev, dpu_mdss); if (ret) return ret;
We don't expect to find vbif_nrt or regdma on cheza, but were clogging up dmesg with errors about it.
Signed-off-by: Eric Anholt eric@anholt.net --- drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c | 4 ++-- drivers/gpu/drm/msm/msm_drv.c | 22 ++++++++++++++++++---- drivers/gpu/drm/msm/msm_drv.h | 2 ++ 3 files changed, 22 insertions(+), 6 deletions(-)
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c index a4ab802fee6d..d9aef2b5e930 100644 --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c @@ -838,13 +838,13 @@ static int dpu_kms_hw_init(struct msm_kms *kms) dpu_kms->vbif[VBIF_RT] = NULL; goto error; } - dpu_kms->vbif[VBIF_NRT] = msm_ioremap(dpu_kms->pdev, "vbif_nrt", "vbif_nrt"); + dpu_kms->vbif[VBIF_NRT] = msm_ioremap_quiet(dpu_kms->pdev, "vbif_nrt", "vbif_nrt"); if (IS_ERR(dpu_kms->vbif[VBIF_NRT])) { dpu_kms->vbif[VBIF_NRT] = NULL; DPU_DEBUG("VBIF NRT is not defined"); }
- dpu_kms->reg_dma = msm_ioremap(dpu_kms->pdev, "regdma", "regdma"); + dpu_kms->reg_dma = msm_ioremap_quiet(dpu_kms->pdev, "regdma", "regdma"); if (IS_ERR(dpu_kms->reg_dma)) { dpu_kms->reg_dma = NULL; DPU_DEBUG("REG_DMA is not defined"); diff --git a/drivers/gpu/drm/msm/msm_drv.c b/drivers/gpu/drm/msm/msm_drv.c index f6ce40bf3699..df4a3c6a49cd 100644 --- a/drivers/gpu/drm/msm/msm_drv.c +++ b/drivers/gpu/drm/msm/msm_drv.c @@ -120,8 +120,8 @@ struct clk *msm_clk_get(struct platform_device *pdev, const char *name) return clk; }
-void __iomem *msm_ioremap(struct platform_device *pdev, const char *name, - const char *dbgname) +void __iomem *_msm_ioremap(struct platform_device *pdev, const char *name, + const char *dbgname, bool quiet) { struct resource *res; unsigned long size; @@ -133,7 +133,8 @@ void __iomem *msm_ioremap(struct platform_device *pdev, const char *name, res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (!res) { - DRM_DEV_ERROR(&pdev->dev, "failed to get memory resource: %s\n", name); + if (!quiet) + DRM_DEV_ERROR(&pdev->dev, "failed to get memory resource: %s\n", name); return ERR_PTR(-EINVAL); }
@@ -141,7 +142,8 @@ void __iomem *msm_ioremap(struct platform_device *pdev, const char *name,
ptr = devm_ioremap(&pdev->dev, res->start, size); if (!ptr) { - DRM_DEV_ERROR(&pdev->dev, "failed to ioremap: %s\n", name); + if (!quiet) + DRM_DEV_ERROR(&pdev->dev, "failed to ioremap: %s\n", name); return ERR_PTR(-ENOMEM); }
@@ -151,6 +153,18 @@ void __iomem *msm_ioremap(struct platform_device *pdev, const char *name, return ptr; }
+void __iomem *msm_ioremap(struct platform_device *pdev, const char *name, + const char *dbgname) +{ + return _msm_ioremap(pdev, name, dbgname, false); +} + +void __iomem *msm_ioremap_quiet(struct platform_device *pdev, const char *name, + const char *dbgname) +{ + return _msm_ioremap(pdev, name, dbgname, true); +} + void msm_writel(u32 data, void __iomem *addr) { if (reglog) diff --git a/drivers/gpu/drm/msm/msm_drv.h b/drivers/gpu/drm/msm/msm_drv.h index e2d6a6056418..2687f7a42c15 100644 --- a/drivers/gpu/drm/msm/msm_drv.h +++ b/drivers/gpu/drm/msm/msm_drv.h @@ -411,6 +411,8 @@ struct clk *msm_clk_bulk_get_clock(struct clk_bulk_data *bulk, int count, const char *name); void __iomem *msm_ioremap(struct platform_device *pdev, const char *name, const char *dbgname); +void __iomem *msm_ioremap_quiet(struct platform_device *pdev, const char *name, + const char *dbgname); void msm_writel(u32 data, void __iomem *addr); u32 msm_readl(const void __iomem *addr);
On Mon, Jun 29, 2020 at 11:19 AM Eric Anholt eric@anholt.net wrote:
We don't expect to find vbif_nrt or regdma on cheza, but were clogging up dmesg with errors about it.
nit: s/cheza/sdm845/ (since this really applies to the SoC rather than the board..
also, maybe msm_ioremap_optional() ?
BR, -R
Signed-off-by: Eric Anholt eric@anholt.net
drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c | 4 ++-- drivers/gpu/drm/msm/msm_drv.c | 22 ++++++++++++++++++---- drivers/gpu/drm/msm/msm_drv.h | 2 ++ 3 files changed, 22 insertions(+), 6 deletions(-)
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c index a4ab802fee6d..d9aef2b5e930 100644 --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c @@ -838,13 +838,13 @@ static int dpu_kms_hw_init(struct msm_kms *kms) dpu_kms->vbif[VBIF_RT] = NULL; goto error; }
dpu_kms->vbif[VBIF_NRT] = msm_ioremap(dpu_kms->pdev, "vbif_nrt", "vbif_nrt");
dpu_kms->vbif[VBIF_NRT] = msm_ioremap_quiet(dpu_kms->pdev, "vbif_nrt", "vbif_nrt"); if (IS_ERR(dpu_kms->vbif[VBIF_NRT])) { dpu_kms->vbif[VBIF_NRT] = NULL; DPU_DEBUG("VBIF NRT is not defined"); }
dpu_kms->reg_dma = msm_ioremap(dpu_kms->pdev, "regdma", "regdma");
dpu_kms->reg_dma = msm_ioremap_quiet(dpu_kms->pdev, "regdma", "regdma"); if (IS_ERR(dpu_kms->reg_dma)) { dpu_kms->reg_dma = NULL; DPU_DEBUG("REG_DMA is not defined");diff --git a/drivers/gpu/drm/msm/msm_drv.c b/drivers/gpu/drm/msm/msm_drv.c index f6ce40bf3699..df4a3c6a49cd 100644 --- a/drivers/gpu/drm/msm/msm_drv.c +++ b/drivers/gpu/drm/msm/msm_drv.c @@ -120,8 +120,8 @@ struct clk *msm_clk_get(struct platform_device *pdev, const char *name) return clk; }
-void __iomem *msm_ioremap(struct platform_device *pdev, const char *name,
const char *dbgname)+void __iomem *_msm_ioremap(struct platform_device *pdev, const char *name,
const char *dbgname, bool quiet){ struct resource *res; unsigned long size; @@ -133,7 +133,8 @@ void __iomem *msm_ioremap(struct platform_device *pdev, const char *name, res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (!res) {
DRM_DEV_ERROR(&pdev->dev, "failed to get memory resource: %s\n", name);
if (!quiet)DRM_DEV_ERROR(&pdev->dev, "failed to get memory resource: %s\n", name); return ERR_PTR(-EINVAL); }@@ -141,7 +142,8 @@ void __iomem *msm_ioremap(struct platform_device *pdev, const char *name,
ptr = devm_ioremap(&pdev->dev, res->start, size); if (!ptr) {
DRM_DEV_ERROR(&pdev->dev, "failed to ioremap: %s\n", name);
if (!quiet)DRM_DEV_ERROR(&pdev->dev, "failed to ioremap: %s\n", name); return ERR_PTR(-ENOMEM); }@@ -151,6 +153,18 @@ void __iomem *msm_ioremap(struct platform_device *pdev, const char *name, return ptr; }
+void __iomem *msm_ioremap(struct platform_device *pdev, const char *name,
const char *dbgname)+{
return _msm_ioremap(pdev, name, dbgname, false);+}
+void __iomem *msm_ioremap_quiet(struct platform_device *pdev, const char *name,
const char *dbgname)+{
return _msm_ioremap(pdev, name, dbgname, true);+}
void msm_writel(u32 data, void __iomem *addr) { if (reglog) diff --git a/drivers/gpu/drm/msm/msm_drv.h b/drivers/gpu/drm/msm/msm_drv.h index e2d6a6056418..2687f7a42c15 100644 --- a/drivers/gpu/drm/msm/msm_drv.h +++ b/drivers/gpu/drm/msm/msm_drv.h @@ -411,6 +411,8 @@ struct clk *msm_clk_bulk_get_clock(struct clk_bulk_data *bulk, int count, const char *name); void __iomem *msm_ioremap(struct platform_device *pdev, const char *name, const char *dbgname); +void __iomem *msm_ioremap_quiet(struct platform_device *pdev, const char *name,
const char *dbgname);void msm_writel(u32 data, void __iomem *addr); u32 msm_readl(const void __iomem *addr);
-- 2.26.2
Hi Eric,
I love your patch! Perhaps something to improve:
[auto build test WARNING on drm-intel/for-linux-next] [also build test WARNING on drm-exynos/exynos-drm-next tegra-drm/drm/tegra/for-next drm-tip/drm-tip linus/master v5.8-rc3 next-20200703] [cannot apply to drm/drm-next] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use as documented in https://git-scm.com/docs/git-format-patch]
url: https://github.com/0day-ci/linux/commits/Eric-Anholt/drm-msm-Garbage-collect... base: git://anongit.freedesktop.org/drm-intel for-linux-next config: arm64-randconfig-r031-20200703 (attached as .config) compiler: clang version 11.0.0 (https://github.com/llvm/llvm-project ca464639a1c9dd3944eb055ffd2796e8c2e7639f) reproduce (this is a W=1 build): wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # install arm64 cross compiling tool for clang build # apt-get install binutils-aarch64-linux-gnu # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=arm64
If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot lkp@intel.com
All warnings (new ones prefixed by >>):
drivers/gpu/drm/msm/msm_drv.c:123:15: warning: no previous prototype for function '_msm_ioremap' [-Wmissing-prototypes]
void __iomem *_msm_ioremap(struct platform_device *pdev, const char *name, ^ drivers/gpu/drm/msm/msm_drv.c:123:1: note: declare 'static' if the function is not intended to be used outside of this translation unit void __iomem *_msm_ioremap(struct platform_device *pdev, const char *name, ^ static 1 warning generated.
vim +/_msm_ioremap +123 drivers/gpu/drm/msm/msm_drv.c
122
123 void __iomem *_msm_ioremap(struct platform_device *pdev, const char *name,
124 const char *dbgname, bool quiet) 125 { 126 struct resource *res; 127 unsigned long size; 128 void __iomem *ptr; 129 130 if (name) 131 res = platform_get_resource_byname(pdev, IORESOURCE_MEM, name); 132 else 133 res = platform_get_resource(pdev, IORESOURCE_MEM, 0); 134 135 if (!res) { 136 if (!quiet) 137 DRM_DEV_ERROR(&pdev->dev, "failed to get memory resource: %s\n", name); 138 return ERR_PTR(-EINVAL); 139 } 140 141 size = resource_size(res); 142 143 ptr = devm_ioremap(&pdev->dev, res->start, size); 144 if (!ptr) { 145 if (!quiet) 146 DRM_DEV_ERROR(&pdev->dev, "failed to ioremap: %s\n", name); 147 return ERR_PTR(-ENOMEM); 148 } 149 150 if (reglog) 151 printk(KERN_DEBUG "IO:region %s %p %08lx\n", dbgname, ptr, size); 152 153 return ptr; 154 } 155
--- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
dri-devel@lists.freedesktop.org
-
Eric Anholt -
kernel test robot -
Rob Clark