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drm/i915: add new helpers for accessing stepping info

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Add new runtime info field for stepping. Add new helpers for accessing
them. As we'll be switching platforms over to the new scheme
incrementally, check for non-initialized steppings.

In case a platform does not have separate display and gt steppings, it's
okay to use a common shorthand. However, in this case the display
stepping must not be initialized, and gt stepping is the single point of
truth.

v3: Remove IS_STEP() (José)

v2: Rename stepping->step

Reviewed-by: José Roberto de Souza <jose.souza@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/bb4275733fa390ea3dbf6f62794d55b616665230.1616764798.git.jani.nikula@intel.com
This commit is contained in:
Jani Nikula 2021-03-26 15:21:33 +02:00
parent 7eb186bbe9
commit 439c8dccb6
3 changed files with 29 additions and 9 deletions
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20
drivers/gpu/drm/i915/i915_drv.h
View File

@ -1269,6 +1269,17 @@ static inline struct drm_i915_private *pdev_to_i915(struct pci_dev *pdev)
#define IS_REVID(p, since, until) \
(INTEL_REVID(p) >= (since) && INTEL_REVID(p) <= (until))
#define INTEL_DISPLAY_STEP(__i915) (RUNTIME_INFO(__i915)->step.disp_stepping)
#define INTEL_GT_STEP(__i915) (RUNTIME_INFO(__i915)->step.gt_stepping)
#define IS_DISPLAY_STEP(__i915, since, until) \
(drm_WARN_ON(&(__i915)->drm, INTEL_DISPLAY_STEP(__i915) == STEP_NONE), \
INTEL_DISPLAY_STEP(__i915) >= (since) && INTEL_DISPLAY_STEP(__i915) <= (until))
#define IS_GT_STEP(__i915, since, until) \
(drm_WARN_ON(&(__i915)->drm, INTEL_GT_STEP(__i915) == STEP_NONE), \
INTEL_GT_STEP(__i915) >= (since) && INTEL_GT_STEP(__i915) <= (until))
static __always_inline unsigned int
__platform_mask_index(const struct intel_runtime_info *info,
enum intel_platform p)
@ -1507,15 +1518,6 @@ enum {
#define IS_JSL_EHL_REVID(p, since, until) \
(IS_JSL_EHL(p) && IS_REVID(p, since, until))
enum {
STEP_A0,
STEP_A2,
STEP_B0,
STEP_B1,
STEP_C0,
STEP_D0,
};
static inline const struct i915_rev_steppings *
tgl_stepping_get(struct drm_i915_private *dev_priv)
{

4
drivers/gpu/drm/i915/intel_device_info.h
View File

@ -27,6 +27,8 @@
#include <uapi/drm/i915_drm.h>
#include "intel_step.h"
#include "display/intel_display.h"
#include "gt/intel_engine_types.h"
@ -226,6 +228,8 @@ struct intel_runtime_info {
u8 num_scalers[I915_MAX_PIPES];
u32 rawclk_freq;
struct i915_rev_steppings step;
};
struct intel_driver_caps {

14
drivers/gpu/drm/i915/intel_step.h
View File

@ -22,4 +22,18 @@ extern const struct i915_rev_steppings tgl_uy_revid_step_tbl[TGL_UY_REVID_STEP_T
extern const struct i915_rev_steppings tgl_revid_step_tbl[TGL_REVID_STEP_TBL_SIZE];
extern const struct i915_rev_steppings adls_revid_step_tbl[ADLS_REVID_STEP_TBL_SIZE];
/*
* Symbolic steppings that do not match the hardware. These are valid both as gt
* and display steppings as symbolic names.
*/
enum intel_step {
STEP_NONE = 0,
STEP_A0,
STEP_A2,
STEP_B0,
STEP_B1,
STEP_C0,
STEP_D0,
};
#endif /* __INTEL_STEP_H__ */