On Mon, Jun 07, 2021 at 11:03:54AM -0700, Matthew Brost wrote:
> From: John Harrison <John.C.Harrison@xxxxxxxxx>
>
> GuC v57 unified the 'DPC' and 'ISR' buffers into a single buffer with
> the option for it to be larger.
>
> Signed-off-by: Matthew Brost <matthew.brost@xxxxxxxxx>
Reviewed-by: Matthew Brost <matthew.brost@xxxxxxxxx>
> Signed-off-by: John Harrison <John.C.Harrison@xxxxxxxxx>
> Cc: Alan Previn <alan.previn.teres.alexis@xxxxxxxxx>
> ---
> drivers/gpu/drm/i915/gt/uc/intel_guc.c | 15 ++++-------
> drivers/gpu/drm/i915/gt/uc/intel_guc_fwif.h | 9 +++----
> drivers/gpu/drm/i915/gt/uc/intel_guc_log.c | 29 +++++++--------------
> drivers/gpu/drm/i915/gt/uc/intel_guc_log.h | 6 ++---
> 4 files changed, 20 insertions(+), 39 deletions(-)
>
> diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc.c b/drivers/gpu/drm/i915/gt/uc/intel_guc.c
> index b773567cb080..6661dcb02239 100644
> --- a/drivers/gpu/drm/i915/gt/uc/intel_guc.c
> +++ b/drivers/gpu/drm/i915/gt/uc/intel_guc.c
> @@ -219,24 +219,19 @@ static u32 guc_ctl_log_params_flags(struct intel_guc *guc)
>
> BUILD_BUG_ON(!CRASH_BUFFER_SIZE);
> BUILD_BUG_ON(!IS_ALIGNED(CRASH_BUFFER_SIZE, UNIT));
> - BUILD_BUG_ON(!DPC_BUFFER_SIZE);
> - BUILD_BUG_ON(!IS_ALIGNED(DPC_BUFFER_SIZE, UNIT));
> - BUILD_BUG_ON(!ISR_BUFFER_SIZE);
> - BUILD_BUG_ON(!IS_ALIGNED(ISR_BUFFER_SIZE, UNIT));
> + BUILD_BUG_ON(!DEBUG_BUFFER_SIZE);
> + BUILD_BUG_ON(!IS_ALIGNED(DEBUG_BUFFER_SIZE, UNIT));
>
> BUILD_BUG_ON((CRASH_BUFFER_SIZE / UNIT - 1) >
> (GUC_LOG_CRASH_MASK >> GUC_LOG_CRASH_SHIFT));
> - BUILD_BUG_ON((DPC_BUFFER_SIZE / UNIT - 1) >
> - (GUC_LOG_DPC_MASK >> GUC_LOG_DPC_SHIFT));
> - BUILD_BUG_ON((ISR_BUFFER_SIZE / UNIT - 1) >
> - (GUC_LOG_ISR_MASK >> GUC_LOG_ISR_SHIFT));
> + BUILD_BUG_ON((DEBUG_BUFFER_SIZE / UNIT - 1) >
> + (GUC_LOG_DEBUG_MASK >> GUC_LOG_DEBUG_SHIFT));
>
> 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) |
> + ((DEBUG_BUFFER_SIZE / UNIT - 1) << GUC_LOG_DEBUG_SHIFT) |
> (offset << GUC_LOG_BUF_ADDR_SHIFT);
>
> #undef UNIT
> diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc_fwif.h b/drivers/gpu/drm/i915/gt/uc/intel_guc_fwif.h
> index f2df5c11c11d..617ec601648d 100644
> --- a/drivers/gpu/drm/i915/gt/uc/intel_guc_fwif.h
> +++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_fwif.h
> @@ -81,10 +81,8 @@
> #define GUC_LOG_ALLOC_IN_MEGABYTE (1 << 3)
> #define GUC_LOG_CRASH_SHIFT 4
> #define GUC_LOG_CRASH_MASK (0x3 << GUC_LOG_CRASH_SHIFT)
> -#define GUC_LOG_DPC_SHIFT 6
> -#define GUC_LOG_DPC_MASK (0x7 << GUC_LOG_DPC_SHIFT)
> -#define GUC_LOG_ISR_SHIFT 9
> -#define GUC_LOG_ISR_MASK (0x7 << GUC_LOG_ISR_SHIFT)
> +#define GUC_LOG_DEBUG_SHIFT 6
> +#define GUC_LOG_DEBUG_MASK (0xF << GUC_LOG_DEBUG_SHIFT)
> #define GUC_LOG_BUF_ADDR_SHIFT 12
>
> #define GUC_CTL_WA 1
> @@ -311,8 +309,7 @@ struct guc_ads {
> /* GuC logging structures */
>
> enum guc_log_buffer_type {
> - GUC_ISR_LOG_BUFFER,
> - GUC_DPC_LOG_BUFFER,
> + GUC_DEBUG_LOG_BUFFER,
> GUC_CRASH_DUMP_LOG_BUFFER,
> GUC_MAX_LOG_BUFFER
> };
> diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc_log.c b/drivers/gpu/drm/i915/gt/uc/intel_guc_log.c
> index c36d5eb5bbb9..ac0931f0374b 100644
> --- a/drivers/gpu/drm/i915/gt/uc/intel_guc_log.c
> +++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_log.c
> @@ -197,10 +197,8 @@ static bool guc_check_log_buf_overflow(struct intel_guc_log *log,
> static unsigned int guc_get_log_buffer_size(enum guc_log_buffer_type type)
> {
> switch (type) {
> - case GUC_ISR_LOG_BUFFER:
> - return ISR_BUFFER_SIZE;
> - case GUC_DPC_LOG_BUFFER:
> - return DPC_BUFFER_SIZE;
> + case GUC_DEBUG_LOG_BUFFER:
> + return DEBUG_BUFFER_SIZE;
> case GUC_CRASH_DUMP_LOG_BUFFER:
> return CRASH_BUFFER_SIZE;
> default:
> @@ -245,7 +243,7 @@ static void guc_read_update_log_buffer(struct intel_guc_log *log)
> src_data += PAGE_SIZE;
> dst_data += PAGE_SIZE;
>
> - for (type = GUC_ISR_LOG_BUFFER; type < GUC_MAX_LOG_BUFFER; type++) {
> + for (type = GUC_DEBUG_LOG_BUFFER; type < GUC_MAX_LOG_BUFFER; type++) {
> /*
> * Make a copy of the state structure, inside GuC log buffer
> * (which is uncached mapped), on the stack to avoid reading
> @@ -463,21 +461,16 @@ int intel_guc_log_create(struct intel_guc_log *log)
> * +===============================+ 00B
> * | Crash dump state header |
> * +-------------------------------+ 32B
> - * | DPC state header |
> + * | Debug state header |
> * +-------------------------------+ 64B
> - * | ISR state header |
> - * +-------------------------------+ 96B
> * | |
> * +===============================+ PAGE_SIZE (4KB)
> * | Crash Dump logs |
> * +===============================+ + CRASH_SIZE
> - * | DPC logs |
> - * +===============================+ + DPC_SIZE
> - * | ISR logs |
> - * +===============================+ + ISR_SIZE
> + * | Debug logs |
> + * +===============================+ + DEBUG_SIZE
> */
> - guc_log_size = PAGE_SIZE + CRASH_BUFFER_SIZE + DPC_BUFFER_SIZE +
> - ISR_BUFFER_SIZE;
> + guc_log_size = PAGE_SIZE + CRASH_BUFFER_SIZE + DEBUG_BUFFER_SIZE;
>
> vma = intel_guc_allocate_vma(guc, guc_log_size);
> if (IS_ERR(vma)) {
> @@ -675,10 +668,8 @@ static const char *
> stringify_guc_log_type(enum guc_log_buffer_type type)
> {
> switch (type) {
> - case GUC_ISR_LOG_BUFFER:
> - return "ISR";
> - case GUC_DPC_LOG_BUFFER:
> - return "DPC";
> + case GUC_DEBUG_LOG_BUFFER:
> + return "DEBUG";
> case GUC_CRASH_DUMP_LOG_BUFFER:
> return "CRASH";
> default:
> @@ -708,7 +699,7 @@ void intel_guc_log_info(struct intel_guc_log *log, struct drm_printer *p)
>
> drm_printf(p, "\tRelay full count: %u\n", log->relay.full_count);
>
> - for (type = GUC_ISR_LOG_BUFFER; type < GUC_MAX_LOG_BUFFER; type++) {
> + for (type = GUC_DEBUG_LOG_BUFFER; type < GUC_MAX_LOG_BUFFER; type++) {
> drm_printf(p, "\t%s:\tflush count %10u, overflow count %10u\n",
> stringify_guc_log_type(type),
> log->stats[type].flush,
> diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc_log.h b/drivers/gpu/drm/i915/gt/uc/intel_guc_log.h
> index 11fccd0b2294..ac1ee1d5ce10 100644
> --- a/drivers/gpu/drm/i915/gt/uc/intel_guc_log.h
> +++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_log.h
> @@ -17,12 +17,10 @@ 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
> +#define DEBUG_BUFFER_SIZE SZ_16M
> #else
> #define CRASH_BUFFER_SIZE SZ_8K
> -#define DPC_BUFFER_SIZE SZ_32K
> -#define ISR_BUFFER_SIZE SZ_32K
> +#define DEBUG_BUFFER_SIZE SZ_64K
> #endif
>
> /*
> --
> 2.28.0
>
