diff options
| author | Mika Kuoppala <mika.kuoppala@linux.intel.com> | 2015-10-30 17:54:47 +0200 |
|---|---|---|
| committer | Ville Syrjälä <ville.syrjala@linux.intel.com> | 2015-11-09 19:16:19 +0200 |
| commit | 6fb403de3620deacf1180d727d21875d07c7464a (patch) | |
| tree | 01bbf9680726f4b322b3e26f9a9d0c54bb251389 | |
| parent | 16e11b994635788042f963ca1822b7cf9cd9cc94 (diff) | |
| download | lwn-6fb403de3620deacf1180d727d21875d07c7464a.tar.gz lwn-6fb403de3620deacf1180d727d21875d07c7464a.zip | |
drm/i915: Add csr programming registers to dmc debugfs entry
We check these to determine firmware loading status. Include
them to help to debug causes of firmware loading fails.
v2: Move all CSR specific registers to i915_reg.h (Ville)
v3: Rebase
v4: Rebase (RPM ref)
Signed-off-by: Mika Kuoppala <mika.kuoppala@intel.com>
Reviewed-by: Imre Deak <imre.deak@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1446220487-32691-1-git-send-email-mika.kuoppala@intel.com
Tested-by: Daniel Stone <daniels@collabora.com> # SKL
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
| -rw-r--r-- | drivers/gpu/drm/i915/i915_debugfs.c | 11 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/i915_reg.h | 10 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/intel_csr.c | 13 |
3 files changed, 18 insertions, 16 deletions
diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c index 8096e96c7d35..e9ecabf79199 100644 --- a/drivers/gpu/drm/i915/i915_debugfs.c +++ b/drivers/gpu/drm/i915/i915_debugfs.c @@ -2802,17 +2802,17 @@ static int i915_dmc_info(struct seq_file *m, void *unused) csr = &dev_priv->csr; + intel_runtime_pm_get(dev_priv); + seq_printf(m, "fw loaded: %s\n", yesno(csr->dmc_payload != NULL)); seq_printf(m, "path: %s\n", csr->fw_path); if (!csr->dmc_payload) - return 0; + goto out; seq_printf(m, "version: %d.%d\n", CSR_VERSION_MAJOR(csr->version), CSR_VERSION_MINOR(csr->version)); - intel_runtime_pm_get(dev_priv); - if (IS_SKYLAKE(dev) && csr->version >= CSR_VERSION(1, 6)) { seq_printf(m, "DC3 -> DC5 count: %d\n", I915_READ(SKL_CSR_DC3_DC5_COUNT)); @@ -2823,6 +2823,11 @@ static int i915_dmc_info(struct seq_file *m, void *unused) I915_READ(BXT_CSR_DC3_DC5_COUNT)); } +out: + seq_printf(m, "program base: 0x%08x\n", I915_READ(CSR_PROGRAM(0))); + seq_printf(m, "ssp base: 0x%08x\n", I915_READ(CSR_SSP_BASE)); + seq_printf(m, "htp: 0x%08x\n", I915_READ(CSR_HTP_SKL)); + intel_runtime_pm_put(dev_priv); return 0; diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h index 083991271060..2183a6e1f134 100644 --- a/drivers/gpu/drm/i915/i915_reg.h +++ b/drivers/gpu/drm/i915/i915_reg.h @@ -5698,6 +5698,16 @@ enum skl_disp_power_wells { #define GAMMA_MODE_MODE_SPLIT (3 << 0) /* DMC/CSR */ +#define CSR_PROGRAM(i) (0x80000 + (i) * 4) +#define CSR_SSP_BASE_ADDR_GEN9 0x00002FC0 +#define CSR_HTP_ADDR_SKL 0x00500034 +#define CSR_SSP_BASE 0x8F074 +#define CSR_HTP_SKL 0x8F004 +#define CSR_LAST_WRITE 0x8F034 +#define CSR_LAST_WRITE_VALUE 0xc003b400 +/* MMIO address range for CSR program (0x80000 - 0x82FFF) */ +#define CSR_MMIO_START_RANGE 0x80000 +#define CSR_MMIO_END_RANGE 0x8FFFF #define SKL_CSR_DC3_DC5_COUNT 0x80030 #define SKL_CSR_DC5_DC6_COUNT 0x8002C #define BXT_CSR_DC3_DC5_COUNT 0x80038 diff --git a/drivers/gpu/drm/i915/intel_csr.c b/drivers/gpu/drm/i915/intel_csr.c index 25b6ba723e31..7dc53907cd7b 100644 --- a/drivers/gpu/drm/i915/intel_csr.c +++ b/drivers/gpu/drm/i915/intel_csr.c @@ -49,21 +49,8 @@ MODULE_FIRMWARE(I915_CSR_BXT); #define SKL_CSR_VERSION_REQUIRED CSR_VERSION(1, 23) -/* -* SKL CSR registers for DC5 and DC6 -*/ -#define CSR_PROGRAM(i) (0x80000 + (i) * 4) -#define CSR_SSP_BASE_ADDR_GEN9 0x00002FC0 -#define CSR_HTP_ADDR_SKL 0x00500034 -#define CSR_SSP_BASE 0x8F074 -#define CSR_HTP_SKL 0x8F004 -#define CSR_LAST_WRITE 0x8F034 -#define CSR_LAST_WRITE_VALUE 0xc003b400 -/* MMIO address range for CSR program (0x80000 - 0x82FFF) */ #define CSR_MAX_FW_SIZE 0x2FFF #define CSR_DEFAULT_FW_OFFSET 0xFFFFFFFF -#define CSR_MMIO_START_RANGE 0x80000 -#define CSR_MMIO_END_RANGE 0x8FFFF struct intel_css_header { /* 0x09 for DMC */ |