On 07/07/2023 02:35, Konrad Dybcio wrote:
On 6.07.2023 23:10, Rob Clark wrote:
From: Rob Clark <robdcl...@chromium.org>

Sometimes it is useful to know the sub-generation (or "family").  And in
any case, this helps us get away from infering the generation from the
numerical chip-id.

Signed-off-by: Rob Clark <robdcl...@chromium.org>
---
[...]

                .rev   = ADRENO_REV(5, 0, 8, ANY_ID),
+               .family = ADRENO_5XX,
                .revn = 508,
508 is from 530 fam

                .fw = {
                        [ADRENO_FW_PM4] = "a530_pm4.fw",
@@ -156,6 +168,7 @@ static const struct adreno_info gpulist[] = {
                .zapfw = "a508_zap.mdt",
        }, {
                .rev   = ADRENO_REV(5, 0, 9, ANY_ID),
+               .family = ADRENO_5XX,
                .revn = 509,
509 and 512 are from 540 fam

                .fw = {
                        [ADRENO_FW_PM4] = "a530_pm4.fw",
@@ -173,6 +186,7 @@ static const struct adreno_info gpulist[] = {
                .zapfw = "a512_zap.mdt",
        }, {
                .rev   = ADRENO_REV(5, 1, 0, ANY_ID),
+               .family = ADRENO_5XX,
                .revn = 510,
510 is 530ish but I think it's closer to 505 or whatever the
8953 gpu was called

I'd say, there were following generations here:

- a505 / a506 / a508
- a509 / a512
- a510
- a530
- a540

Indeed a50x were close to a530 in some aspects and a509/512 being closer to a540, but I don't think they were the same family.


[...]

-       priv->is_a2xx = config.rev.core == 2;
+       priv->is_a2xx = info->family < ADRENO_3XX;
is this variable even needed now that there are explicit family values?

Konrad
        priv->has_cached_coherent =
                !!(info->quirks & ADRENO_QUIRK_HAS_CACHED_COHERENT);
diff --git a/drivers/gpu/drm/msm/adreno/adreno_gpu.c b/drivers/gpu/drm/msm/adreno/adreno_gpu.c
index 2e62a7ce9f13..75ff7fb46099 100644
--- a/drivers/gpu/drm/msm/adreno/adreno_gpu.c
+++ b/drivers/gpu/drm/msm/adreno/adreno_gpu.c
@@ -1079,8 +1079,13 @@ int adreno_gpu_init(struct drm_device *drm, struct 
platform_device *pdev,
        u32 speedbin;
        int ret;
+ adreno_gpu->funcs = funcs;
+       adreno_gpu->info = adreno_info(config->rev);
+       adreno_gpu->rev = *rev;
+
        /* Only handle the core clock when GMU is not in use (or is absent). */
-       if (adreno_has_gmu_wrapper(adreno_gpu) || config->rev.core < 6) {
+       if (adreno_has_gmu_wrapper(adreno_gpu) ||
+           adreno_gpu->info->family < ADRENO_6XX_GEN1) {
                /*
                 * This can only be done before devm_pm_opp_of_add_table(), or
                 * dev_pm_opp_set_config() will WARN_ON()
@@ -1096,10 +1101,6 @@ int adreno_gpu_init(struct drm_device *drm, struct 
platform_device *pdev,
                        devm_pm_opp_set_clkname(dev, "core");
        }
- adreno_gpu->funcs = funcs;
-       adreno_gpu->info = adreno_info(config->rev);
-       adreno_gpu->rev = *rev;
-
        if (adreno_read_speedbin(dev, &speedbin) || !speedbin)
                speedbin = 0xffff;
        adreno_gpu->speedbin = (uint16_t) (0xffff & speedbin);
diff --git a/drivers/gpu/drm/msm/adreno/adreno_gpu.h 
b/drivers/gpu/drm/msm/adreno/adreno_gpu.h
index 6066cfaaea52..2fa14dcd4e40 100644
--- a/drivers/gpu/drm/msm/adreno/adreno_gpu.h
+++ b/drivers/gpu/drm/msm/adreno/adreno_gpu.h
@@ -29,6 +29,25 @@ enum {
        ADRENO_FW_MAX,
  };
+/**
+ * @enum adreno_family: identify generation and possibly sub-generation
+ *
+ * In some cases there are distinct sub-generations within a major revision
+ * so it helps to be able to group the GPU devices by generation and if
+ * necessary sub-generation.
+ */
+enum adreno_family {
+       ADRENO_2XX_GEN1,  /* a20x */
+       ADRENO_2XX_GEN2,  /* a22x */
+       ADRENO_3XX,
+       ADRENO_4XX,
+       ADRENO_5XX,
+       ADRENO_6XX_GEN1,  /* a630 family */
+       ADRENO_6XX_GEN2,  /* a640 family */
+       ADRENO_6XX_GEN3,  /* a650 family */
+       ADRENO_6XX_GEN4,  /* a660 family */
+};
+
  #define ADRENO_QUIRK_TWO_PASS_USE_WFI         BIT(0)
  #define ADRENO_QUIRK_FAULT_DETECT_MASK                BIT(1)
  #define ADRENO_QUIRK_LMLOADKILL_DISABLE               BIT(2)
@@ -63,6 +82,7 @@ extern const struct adreno_reglist a660_hwcg[], a690_hwcg[];
  struct adreno_info {
        const char *machine;
        struct adreno_rev rev;
+       enum adreno_family family;
        uint32_t revn;
        const char *fw[ADRENO_FW_MAX];
        uint32_t gmem;
@@ -188,14 +208,14 @@ static inline bool adreno_is_a2xx(const struct adreno_gpu 
*gpu)
  {
        if (WARN_ON_ONCE(!gpu->info))
                return false;
-       return (gpu->info->revn < 300);
+       return gpu->info->family < ADRENO_2XX_GEN2;
  }
static inline bool adreno_is_a20x(const struct adreno_gpu *gpu)
  {
        if (WARN_ON_ONCE(!gpu->info))
                return false;
-       return (gpu->info->revn < 210);
+       return gpu->info->family == ADRENO_2XX_GEN1;
  }
static inline bool adreno_is_a225(const struct adreno_gpu *gpu)
@@ -338,29 +358,31 @@ static inline int adreno_is_a690(const struct adreno_gpu 
*gpu)
  /* check for a615, a616, a618, a619 or any a630 derivatives */
  static inline int adreno_is_a630_family(const struct adreno_gpu *gpu)
  {
-       return adreno_is_revn(gpu, 630) ||
-               adreno_is_revn(gpu, 615) ||
-               adreno_is_revn(gpu, 616) ||
-               adreno_is_revn(gpu, 618) ||
-               adreno_is_revn(gpu, 619);
+       if (WARN_ON_ONCE(!gpu->info))
+               return false;
+       return gpu->info->family == ADRENO_6XX_GEN1;
  }
static inline int adreno_is_a660_family(const struct adreno_gpu *gpu)
  {
-       return adreno_is_a660(gpu) || adreno_is_a690(gpu) || adreno_is_7c3(gpu);
+       if (WARN_ON_ONCE(!gpu->info))
+               return false;
+       return gpu->info->family == ADRENO_6XX_GEN4;
  }
/* check for a650, a660, or any derivatives */
  static inline int adreno_is_a650_family(const struct adreno_gpu *gpu)
  {
-       return adreno_is_revn(gpu, 650) ||
-               adreno_is_revn(gpu, 620) ||
-               adreno_is_a660_family(gpu);
+       if (WARN_ON_ONCE(!gpu->info))
+               return false;
+       return gpu->info->family >= ADRENO_6XX_GEN3;
  }
static inline int adreno_is_a640_family(const struct adreno_gpu *gpu)
  {
-       return adreno_is_a640(gpu) || adreno_is_a680(gpu);
+       if (WARN_ON_ONCE(!gpu->info))
+               return false;
+       return gpu->info->family == ADRENO_6XX_GEN2;
  }
u64 adreno_private_address_space_size(struct msm_gpu *gpu);

--
With best wishes
Dmitry

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