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drm/msm: drop register logging support

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Register logging was used during early stages of msm driver development
to compare upstream and downstream register traces. However the tool was
never updated to work with mdp5 hardware. Later it was dropped
completely when Rob imported freedreno tools into mesa. All this makes
DRM_MSM_REGISTER_LOGGING irrelevant now, so it can be dropped.

Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Link: https://lore.kernel.org/r/20220105232700.444170-1-dmitry.baryshkov@linaro.org
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
This commit is contained in:
Dmitry Baryshkov
2022-01-06 02:26:58 +03:00
parent 5333f0ecf7
commit 897f55049f
2 changed files with 1 additions and 24 deletions
Download Patch File Download Diff File Expand all files Collapse all files

9
drivers/gpu/drm/msm/Kconfig
View File

@@ -33,15 +33,6 @@ config DRM_MSM_GPU_STATE
depends on DRM_MSM && (DEBUG_FS || DEV_COREDUMP)
default y
config DRM_MSM_REGISTER_LOGGING
bool "MSM DRM register logging"
depends on DRM_MSM
default n
help
Compile in support for logging register reads/writes in a format
that can be parsed by envytools demsm tool. If enabled, register
logging can be switched on via msm.reglog=y module param.
config DRM_MSM_GPU_SUDO
bool "Enable SUDO flag on submits"
depends on DRM_MSM && EXPERT

16
drivers/gpu/drm/msm/msm_drv.c
View File

@@ -57,14 +57,6 @@ static const struct drm_mode_config_helper_funcs mode_config_helper_funcs = {
.atomic_commit_tail = msm_atomic_commit_tail,
};
#ifdef CONFIG_DRM_MSM_REGISTER_LOGGING
static bool reglog;
MODULE_PARM_DESC(reglog, "Enable register read/write logging");
module_param(reglog, bool, 0600);
#else
#define reglog 0
#endif
#ifdef CONFIG_DRM_FBDEV_EMULATION
static bool fbdev = true;
MODULE_PARM_DESC(fbdev, "Enable fbdev compat layer");
@@ -150,9 +142,6 @@ static void __iomem *_msm_ioremap(struct platform_device *pdev, const char *name
return ERR_PTR(-ENOMEM);
}
if (reglog)
printk(KERN_DEBUG "IO:region %s %p %08lx\n", dbgname, ptr, size);
if (psize)
*psize = size;
@@ -179,16 +168,13 @@ void __iomem *msm_ioremap_size(struct platform_device *pdev, const char *name,
void msm_writel(u32 data, void __iomem *addr)
{
if (reglog)
printk(KERN_DEBUG "IO:W %p %08x\n", addr, data);
writel(data, addr);
}
u32 msm_readl(const void __iomem *addr)
{
u32 val = readl(addr);
if (reglog)
pr_err("IO:R %p %08x\n", addr, val);
return val;
}