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drm/i915/guc: Add support for define guc_log_size in megabytes.

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At this moment we can define GuC logs sizes only using pages.
But GuC also allows use for this values expressed in megabytes.
Lets add support for define guc_log_size in megabytes when we
debug of GuC.

v2:
- change buffers size to more friendly (Michał Wajdeczko)
- merge statements in guc_ctl_log_params_flags() (Michał Wajdeczko)
v3:
- fix ifdef (rename DRM_I915_DEBUG_GUC to CONFIG_DRM_I915_DEBUG_GUC)
(Michał Wajdeczko)
- use SZ_* macros to define buffers sizes (Michał Wajdeczko)

Signed-off-by: Piotr Piórkowski <piotr.piorkowski@intel.com>
Cc: Michal Wajdeczko <michal.wajdeczko@intel.com>
Cc: Michał Winiarski <michal.winiarski@intel.com>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Michal Wajdeczko <michal.wajdeczko@intel.com>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20180605151330.9954-2-piotr.piorkowski@intel.com
This commit is contained in:
Piotr Piorkowski 2018-06-05 17:13:30 +02:00 committed by Chris Wilson
parent 5288c7182d
commit 3d6d62eae7
2 changed files with 14 additions and 0 deletions
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8
drivers/gpu/drm/i915/intel_guc.c
View File

@ -263,7 +263,13 @@ static u32 guc_ctl_log_params_flags(struct intel_guc *guc)
u32 offset = intel_guc_ggtt_offset(guc, guc->log.vma) >> PAGE_SHIFT;
u32 flags;
#if (((CRASH_BUFFER_SIZE) % SZ_1M) == 0)
#define UNIT SZ_1M
#define FLAG GUC_LOG_ALLOC_IN_MEGABYTE
#else
#define UNIT SZ_4K
#define FLAG 0
#endif
BUILD_BUG_ON(!CRASH_BUFFER_SIZE);
BUILD_BUG_ON(!IS_ALIGNED(CRASH_BUFFER_SIZE, UNIT));
@ -281,12 +287,14 @@ static u32 guc_ctl_log_params_flags(struct intel_guc *guc)
flags = GUC_LOG_VALID |
GUC_LOG_NOTIFY_ON_HALF_FULL |
FLAG |
((CRASH_BUFFER_SIZE / UNIT - 1) << GUC_LOG_CRASH_SHIFT) |
((DPC_BUFFER_SIZE / UNIT - 1) << GUC_LOG_DPC_SHIFT) |
((ISR_BUFFER_SIZE / UNIT - 1) << GUC_LOG_ISR_SHIFT) |
(offset << GUC_LOG_BUF_ADDR_SHIFT);
#undef UNIT
#undef FLAG
return flags;
}

6
drivers/gpu/drm/i915/intel_guc_log.h
View File

@ -34,9 +34,15 @@
struct intel_guc;
#ifdef CONFIG_DRM_I915_DEBUG_GUC
#define CRASH_BUFFER_SIZE SZ_2M
#define DPC_BUFFER_SIZE SZ_8M
#define ISR_BUFFER_SIZE SZ_8M
#else
#define CRASH_BUFFER_SIZE SZ_8K
#define DPC_BUFFER_SIZE SZ_32K
#define ISR_BUFFER_SIZE SZ_32K
#endif
/*
* While we're using plain log level in i915, GuC controls are much more...